Merge branch 'mc-1.21.x' into mc-1.21.y

CONTRIBUTING.md

@@ -88,8 +88,8 @@ You'll first need to [set up a development environment as above](#setting-up-a-d
 
 Once this is set up, you can now run `./gradlew docWebsite`. This generates documentation from our Lua and Java code,
 writing the resulting HTML into `./projects/web/build/site`, which can then be opened in a browser. When iterating on
-documentation, you can instead run `./gradlew docWebsite -t`, which will rebuild documentation every time you change a
-file.
+documentation, you can instead run `./gradlew :web:assemble -x :web:compileTeaVM -t`, which will rebuild documentation
+every time you change a file.
 
 Documentation is built using [illuaminate] which, while not currently documented (somewhat ironic), is largely the same
 as [ldoc][ldoc]. Documentation comments are written in Markdown, though note that we do not support many GitHub-specific

buildSrc/src/main/kotlin/cc/tweaked/gradle/XmlUtil.kt

@@ -1,16 +0,0 @@
-// SPDX-FileCopyrightText: 2022 The CC: Tweaked Developers
-//
-// SPDX-License-Identifier: MPL-2.0
-
-package cc.tweaked.gradle
-
-import groovy.util.Node
-import groovy.util.NodeList
-
-object XmlUtil {
-    fun findChild(node: Node, name: String): Node? = when (val child = node.get(name)) {
-        is Node -> child
-        is NodeList -> child.singleOrNull() as Node?
-        else -> null
-    }
-}

gradle/libs.versions.toml

@@ -58,11 +58,11 @@ junitPlatform = "1.11.4"
 jmh = "1.37"
 
 # Build tools
-cctJavadoc = "1.8.3"
+cctJavadoc = "1.8.4"
 checkstyle = "10.21.2"
 errorProne-core = "2.36.0"
 errorProne-plugin = "4.1.0"
-fabric-loom = "1.9.2"
+fabric-loom = "1.10.3"
 githubRelease = "2.5.2"
 gradleVersions = "0.50.0"
 ideaExt = "1.1.7"
@@ -75,7 +75,7 @@ shadow = "8.3.1"
 spotless = "6.23.3"
 taskTree = "2.1.1"
 teavm = "0.11.0-SQUID.1"
-vanillaExtract = "0.2.0"
+vanillaExtract = "0.2.1"
 versionCatalogUpdate = "0.8.1"
 
 [libraries]

projects/common-api/src/main/java/dan200/computercraft/api/detail/ComponentDetailProvider.java

@@ -51,10 +51,10 @@ public abstract class ComponentDetailProvider<T> implements DetailProvider<DataC
      * This method is always called on the server thread, so it is safe to interact with the world here, but you should
      * take care to avoid long blocking operations as this will stall the server and other computers.
      *
-     * @param data The full details to be returned for this item stack. New properties should be added to this map.
-     * @param item The component to provide details for.
+     * @param data      The full details to be returned for this item stack. New properties should be added to this map.
+     * @param component The component to provide details for.
      */
-    public abstract void provideComponentDetails(Map<? super String, Object> data, T item);
+    public abstract void provideComponentDetails(Map<? super String, Object> data, T component);
 
     @Override
     public final void provideDetails(Map<? super String, Object> data, DataComponentHolder holder) {

projects/common/src/client/java/dan200/computercraft/client/integration/IrisShaderMod.java

@@ -12,9 +12,9 @@ import dan200.computercraft.shared.platform.PlatformHelper;
 import net.irisshaders.iris.api.v0.IrisApi;
 import net.irisshaders.iris.api.v0.IrisTextVertexSink;
 import net.minecraft.client.renderer.LightTexture;
+import org.jspecify.annotations.Nullable;
 import org.lwjgl.system.MemoryUtil;
 
-import javax.annotation.Nullable;
 import java.nio.ByteBuffer;
 import java.util.Optional;
 

projects/common/src/client/java/dan200/computercraft/client/render/CustomLecternRenderer.java

@@ -12,6 +12,7 @@ import dan200.computercraft.client.pocket.ClientPocketComputers;
 import dan200.computercraft.client.render.text.FixedWidthFontRenderer;
 import dan200.computercraft.core.terminal.Terminal;
 import dan200.computercraft.core.util.Colour;
+import dan200.computercraft.shared.ModRegistry;
 import dan200.computercraft.shared.lectern.CustomLecternBlockEntity;
 import dan200.computercraft.shared.media.items.PrintoutData;
 import dan200.computercraft.shared.media.items.PrintoutItem;
@@ -59,9 +60,9 @@ public class CustomLecternRenderer implements BlockEntityRenderer<CustomLecternB
         poseStack.translate(0, -0.125f, 0);
 
         var item = lectern.getItem();
-        if (item.getItem() instanceof PrintoutItem printout) {
+        if (item.getItem() instanceof PrintoutItem) {
             var vertexConsumer = LecternPrintoutModel.MATERIAL.buffer(buffer, RenderType::entitySolid);
-            if (printout.getType() == PrintoutItem.Type.BOOK) {
+            if (item.is(ModRegistry.Items.PRINTED_BOOK.get())) {
                 printoutModel.renderBook(poseStack, vertexConsumer, packedLight, packedOverlay);
             } else {
                 printoutModel.renderPages(poseStack, vertexConsumer, packedLight, packedOverlay, PrintoutData.getOrEmpty(item).pages());

projects/common/src/client/java/dan200/computercraft/client/render/ExtendedItemFrameRenderState.java

@@ -12,8 +12,7 @@ import net.minecraft.client.renderer.MultiBufferSource;
 import net.minecraft.client.renderer.entity.state.ItemFrameRenderState;
 import net.minecraft.world.entity.decoration.ItemFrame;
 import net.minecraft.world.item.ItemStack;
-
-import javax.annotation.Nullable;
+import org.jspecify.annotations.Nullable;
 
 /**
  * Additional render state attached to a {@link ItemFrameRenderState}.

projects/common/src/main/java/dan200/computercraft/shared/CommonHooks.java

@@ -13,7 +13,10 @@ import dan200.computercraft.shared.lectern.CustomLecternBlock;
 import dan200.computercraft.shared.peripheral.monitor.MonitorWatcher;
 import dan200.computercraft.shared.util.DropConsumer;
 import dan200.computercraft.shared.util.TickScheduler;
+import net.minecraft.core.component.DataComponentType;
+import net.minecraft.core.component.DataComponents;
 import net.minecraft.core.registries.Registries;
+import net.minecraft.network.chat.Component;
 import net.minecraft.resources.ResourceKey;
 import net.minecraft.resources.ResourceLocation;
 import net.minecraft.server.MinecraftServer;
@@ -25,9 +28,8 @@ import net.minecraft.world.InteractionHand;
 import net.minecraft.world.InteractionResult;
 import net.minecraft.world.entity.Entity;
 import net.minecraft.world.entity.player.Player;
-import net.minecraft.world.item.CreativeModeTab;
-import net.minecraft.world.item.CreativeModeTabs;
-import net.minecraft.world.item.ItemStack;
+import net.minecraft.world.item.*;
+import net.minecraft.world.item.component.TooltipProvider;
 import net.minecraft.world.level.Level;
 import net.minecraft.world.level.block.Blocks;
 import net.minecraft.world.level.block.LecternBlock;
@@ -40,8 +42,10 @@ import net.minecraft.world.level.storage.loot.providers.number.ConstantValue;
 import net.minecraft.world.phys.BlockHitResult;
 import org.jspecify.annotations.Nullable;
 
+import java.util.List;
 import java.util.Set;
 import java.util.function.BiConsumer;
+import java.util.function.Consumer;
 
 /**
  * Event listeners for server/common code.
@@ -163,4 +167,42 @@ public final class CommonHooks {
             out.accept(ModRegistry.Items.COMPUTER_COMMAND.get());
         }
     }
+
+    public static void onItemTooltip(ItemStack stack, Item.TooltipContext context, TooltipFlag flags, List<Component> out) {
+        var appender = new TooltipAppender(out);
+        addToTooltip(stack, ModRegistry.DataComponents.PRINTOUT.get(), context, appender, flags);
+        addToTooltip(stack, ModRegistry.DataComponents.TREASURE_DISK.get(), context, appender, flags);
+
+        // Disk and computer IDs require some conditional logic, so we don't bother using TooltipProvider.
+
+        var diskId = stack.get(ModRegistry.DataComponents.DISK_ID.get());
+        if (diskId != null && flags.isAdvanced()) diskId.addToTooltip("gui.computercraft.tooltip.disk_id", appender);
+
+        var computerId = stack.get(ModRegistry.DataComponents.COMPUTER_ID.get());
+        if (computerId != null && (flags.isAdvanced() || !stack.has(DataComponents.CUSTOM_NAME))) {
+            computerId.addToTooltip("gui.computercraft.tooltip.computer_id", appender);
+        }
+    }
+
+    /**
+     * Inserts additional tooltip items directly after the custom name, rather than at the very end.
+     */
+    private static final class TooltipAppender implements Consumer<Component> {
+        private final List<Component> out;
+        private int index = 1;
+
+        private TooltipAppender(List<Component> out) {
+            this.out = out;
+        }
+
+        @Override
+        public void accept(Component component) {
+            out.add(index++, component);
+        }
+    }
+
+    private static <T extends TooltipProvider> void addToTooltip(ItemStack stack, DataComponentType<T> component, Item.TooltipContext context, Consumer<Component> out, TooltipFlag flags) {
+        var provider = stack.get(component);
+        if (provider != null) provider.addToTooltip(context, out, flags);
+    }
 }

projects/common/src/main/java/dan200/computercraft/shared/ModRegistry.java

@@ -35,8 +35,6 @@ import dan200.computercraft.shared.computer.blocks.ComputerBlockEntity;
 import dan200.computercraft.shared.computer.core.ComputerFamily;
 import dan200.computercraft.shared.computer.core.ServerComputer;
 import dan200.computercraft.shared.computer.inventory.ComputerMenuWithoutInventory;
-import dan200.computercraft.shared.computer.items.CommandComputerItem;
-import dan200.computercraft.shared.computer.items.ComputerItem;
 import dan200.computercraft.shared.computer.items.ServerComputerReference;
 import dan200.computercraft.shared.config.Config;
 import dan200.computercraft.shared.data.BlockNamedEntityLootCondition;
@@ -114,10 +112,7 @@ import net.minecraft.resources.ResourceKey;
 import net.minecraft.resources.ResourceLocation;
 import net.minecraft.world.flag.FeatureFlags;
 import net.minecraft.world.inventory.MenuType;
-import net.minecraft.world.item.BlockItem;
-import net.minecraft.world.item.CreativeModeTab;
-import net.minecraft.world.item.Item;
-import net.minecraft.world.item.ItemStack;
+import net.minecraft.world.item.*;
 import net.minecraft.world.item.component.DyedItemColor;
 import net.minecraft.world.item.crafting.CustomRecipe;
 import net.minecraft.world.item.crafting.Recipe;
@@ -291,9 +286,9 @@ public final class ModRegistry {
             return register(parent.id().getPath(), p -> supplier.apply(parent.get(), p), properties().useBlockDescriptionPrefix());
         }
 
-        public static final RegistryEntry<ComputerItem> COMPUTER_NORMAL = ofBlock(Blocks.COMPUTER_NORMAL, ComputerItem::new);
-        public static final RegistryEntry<ComputerItem> COMPUTER_ADVANCED = ofBlock(Blocks.COMPUTER_ADVANCED, ComputerItem::new);
-        public static final RegistryEntry<ComputerItem> COMPUTER_COMMAND = ofBlock(Blocks.COMPUTER_COMMAND, CommandComputerItem::new);
+        public static final RegistryEntry<BlockItem> COMPUTER_NORMAL = ofBlock(Blocks.COMPUTER_NORMAL, BlockItem::new);
+        public static final RegistryEntry<BlockItem> COMPUTER_ADVANCED = ofBlock(Blocks.COMPUTER_ADVANCED, BlockItem::new);
+        public static final RegistryEntry<GameMasterBlockItem> COMPUTER_COMMAND = ofBlock(Blocks.COMPUTER_COMMAND, GameMasterBlockItem::new);
 
         public static final RegistryEntry<PocketComputerItem> POCKET_COMPUTER_NORMAL = register("pocket_computer_normal",
             p -> new PocketComputerItem(p, ComputerFamily.NORMAL), properties().stacksTo(1));
@@ -305,19 +300,19 @@ public final class ModRegistry {
 
         public static final RegistryEntry<DiskItem> DISK =
             register("disk", DiskItem::new, properties().stacksTo(1));
-        public static final RegistryEntry<TreasureDiskItem> TREASURE_DISK =
-            register("treasure_disk", TreasureDiskItem::new, properties().stacksTo(1));
+        public static final RegistryEntry<DiskItem> TREASURE_DISK =
+            register("treasure_disk", DiskItem::new, properties().stacksTo(1));
 
         private static Item.Properties printoutProperties() {
             return properties().stacksTo(1).component(DataComponents.PRINTOUT.get(), PrintoutData.EMPTY);
         }
 
         public static final RegistryEntry<PrintoutItem> PRINTED_PAGE = register("printed_page",
-            p -> new PrintoutItem(p, PrintoutItem.Type.PAGE), Items::printoutProperties);
+            PrintoutItem::new, Items::printoutProperties);
         public static final RegistryEntry<PrintoutItem> PRINTED_PAGES = register("printed_pages",
-            p -> new PrintoutItem(p, PrintoutItem.Type.PAGES), Items::printoutProperties);
+            PrintoutItem::new, Items::printoutProperties);
         public static final RegistryEntry<PrintoutItem> PRINTED_BOOK = register("printed_book",
-            p -> new PrintoutItem(p, PrintoutItem.Type.BOOK), Items::printoutProperties);
+            PrintoutItem::new, Items::printoutProperties);
 
         public static final RegistryEntry<BlockItem> SPEAKER = ofBlock(Blocks.SPEAKER, BlockItem::new);
         public static final RegistryEntry<BlockItem> DISK_DRIVE = ofBlock(Blocks.DISK_DRIVE, BlockItem::new);
@@ -344,9 +339,6 @@ public final class ModRegistry {
 
         /**
          * The id of a computer.
-         *
-         * @see ComputerItem
-         * @see PocketComputerItem
          */
         public static final RegistryEntry<DataComponentType<NonNegativeId>> COMPUTER_ID = register("computer_id", b -> b
             .persistent(NonNegativeId.CODEC).networkSynchronized(NonNegativeId.STREAM_CODEC)
@@ -354,10 +346,6 @@ public final class ModRegistry {
 
         /**
          * The storage capacity of a computer or disk.
-         *
-         * @see ComputerItem
-         * @see PocketComputerItem
-         * @see DiskItem
          */
         public static final RegistryEntry<DataComponentType<StorageCapacity>> STORAGE_CAPACITY = register("storage_capacity", b -> b
             .persistent(StorageCapacity.CODEC).networkSynchronized(StorageCapacity.STREAM_CODEC)
@@ -426,9 +414,6 @@ public final class ModRegistry {
 
         /**
          * Information about a treasure disk's mount.
-         *
-         * @see TreasureDiskItem
-         * @see TreasureDisk
          */
         public static final RegistryEntry<DataComponentType<TreasureDisk>> TREASURE_DISK = register("treasure_disk", b -> b
             .persistent(TreasureDisk.CODEC).networkSynchronized(TreasureDisk.STREAM_CODEC)
@@ -436,8 +421,6 @@ public final class ModRegistry {
 
         /**
          * The id of a disk.
-         *
-         * @see DiskItem
          */
         public static final RegistryEntry<DataComponentType<NonNegativeId>> DISK_ID = register("disk_id", b -> b
             .persistent(NonNegativeId.CODEC).networkSynchronized(NonNegativeId.STREAM_CODEC)

projects/common/src/main/java/dan200/computercraft/shared/computer/blocks/AbstractComputerBlock.java

@@ -9,8 +9,10 @@ import dan200.computercraft.shared.network.container.ComputerContainerData;
 import dan200.computercraft.shared.platform.PlatformHelper;
 import dan200.computercraft.shared.platform.RegistryEntry;
 import dan200.computercraft.shared.util.BlockEntityHelpers;
+import net.minecraft.Util;
 import net.minecraft.core.BlockPos;
 import net.minecraft.core.Direction;
+import net.minecraft.core.component.DataComponentMap;
 import net.minecraft.util.RandomSource;
 import net.minecraft.world.InteractionResult;
 import net.minecraft.world.entity.player.Player;
@@ -65,12 +67,6 @@ public abstract class AbstractComputerBlock<T extends AbstractComputerBlockEntit
         return computer.getRedstoneOutput(localSide);
     }
 
-    private ItemStack getItem(AbstractComputerBlockEntity tile) {
-        var stack = new ItemStack(this);
-        stack.applyComponents(tile.collectComponents());
-        return stack;
-    }
-
     @Override
     protected int getSignal(BlockState state, BlockGetter world, BlockPos pos, Direction incomingSide) {
         return getDirectSignal(state, world, pos, incomingSide);
@@ -90,12 +86,11 @@ public abstract class AbstractComputerBlock<T extends AbstractComputerBlockEntit
 
     @Override
     public ItemStack getCloneItemStack(LevelReader world, BlockPos pos, BlockState state, boolean includeData) {
+        var stack = super.getCloneItemStack(world, pos, state, includeData);
         if (world.getBlockEntity(pos) instanceof AbstractComputerBlockEntity computer) {
-            var result = getItem(computer);
-            if (!result.isEmpty()) return result;
+            stack.applyComponents(computer.collectComponents());
         }
-
-        return super.getCloneItemStack(world, pos, state, includeData);
+        return stack;
     }
 
     @Override
@@ -121,7 +116,10 @@ public abstract class AbstractComputerBlock<T extends AbstractComputerBlockEntit
                 var serverComputer = computer.createServerComputer();
                 serverComputer.turnOn();
 
-                PlatformHelper.get().openMenu(player, computer.getName(), computer, new ComputerContainerData(serverComputer, getItem(computer)));
+                var stack = new ItemStack(this);
+                stack.applyComponents(Util.make(DataComponentMap.builder(), computer::collectSafeComponents).build());
+
+                PlatformHelper.get().openMenu(player, computer.getName(), computer, new ComputerContainerData(serverComputer, stack));
             }
             return InteractionResult.SUCCESS;
         }

projects/common/src/main/java/dan200/computercraft/shared/computer/blocks/AbstractComputerBlockEntity.java

@@ -5,6 +5,7 @@
 package dan200.computercraft.shared.computer.blocks;
 
 import com.google.common.base.Strings;
+import com.google.errorprone.annotations.OverridingMethodsMustInvokeSuper;
 import dan200.computercraft.api.ComputerCraftAPI;
 import dan200.computercraft.api.peripheral.IPeripheral;
 import dan200.computercraft.core.computer.ComputerSide;
@@ -185,10 +186,20 @@ public abstract class AbstractComputerBlockEntity extends BlockEntity implements
     @Override
     protected void collectImplicitComponents(DataComponentMap.Builder builder) {
         super.collectImplicitComponents(builder);
+        collectSafeComponents(builder);
+        if (lockCode != LockCode.NO_LOCK) builder.set(DataComponents.LOCK, lockCode);
+    }
+
+    /**
+     * Collect components that are safe to share with the client.
+     *
+     * @param builder The component builder.
+     */
+    @OverridingMethodsMustInvokeSuper
+    protected void collectSafeComponents(DataComponentMap.Builder builder) {
         builder.set(ModRegistry.DataComponents.COMPUTER_ID.get(), NonNegativeId.of(computerID));
         builder.set(DataComponents.CUSTOM_NAME, label == null ? null : Component.literal(label));
         builder.set(ModRegistry.DataComponents.STORAGE_CAPACITY.get(), storageCapacity > 0 ? new StorageCapacity(storageCapacity) : null);
-        if (lockCode != LockCode.NO_LOCK) builder.set(DataComponents.LOCK, lockCode);
     }
 
     @Override

projects/common/src/main/java/dan200/computercraft/shared/computer/blocks/CommandComputerBlock.java

@@ -16,7 +16,6 @@ import net.minecraft.world.level.block.entity.BlockEntityType;
  * permission.
  *
  * @param <T> The type of the computer block entity.
- * @see dan200.computercraft.shared.computer.items.CommandComputerItem
  */
 public class CommandComputerBlock<T extends ComputerBlockEntity> extends ComputerBlock<T> implements GameMasterBlock {
     private static final MapCodec<CommandComputerBlock<?>> CODEC = RecordCodecBuilder.mapCodec(instance -> instance.group(

projects/common/src/main/java/dan200/computercraft/shared/computer/items/CommandComputerItem.java

@@ -1,29 +0,0 @@
-// SPDX-FileCopyrightText: 2023 The CC: Tweaked Developers
-//
-// SPDX-License-Identifier: MPL-2.0
-
-package dan200.computercraft.shared.computer.items;
-
-import dan200.computercraft.shared.computer.blocks.ComputerBlock;
-import net.minecraft.world.item.context.BlockPlaceContext;
-import net.minecraft.world.level.block.state.BlockState;
-import org.jspecify.annotations.Nullable;
-
-/**
- * A {@link ComputerItem} which prevents players placing it without permission.
- *
- * @see net.minecraft.world.item.GameMasterBlockItem
- * @see dan200.computercraft.shared.computer.blocks.CommandComputerBlock
- */
-public class CommandComputerItem extends ComputerItem {
-    public CommandComputerItem(ComputerBlock<?> block, Properties settings) {
-        super(block, settings);
-    }
-
-    @Override
-    protected @Nullable BlockState getPlacementState(BlockPlaceContext context) {
-        // Prohibit players placing this block in survival or when not opped.
-        var player = context.getPlayer();
-        return player != null && !player.canUseGameMasterBlocks() ? null : super.getPlacementState(context);
-    }
-}

projects/common/src/main/java/dan200/computercraft/shared/computer/items/ComputerItem.java

@@ -1,33 +0,0 @@
-// Copyright Daniel Ratcliffe, 2011-2022. Do not distribute without permission.
-//
-// SPDX-License-Identifier: LicenseRef-CCPL
-
-package dan200.computercraft.shared.computer.items;
-
-import dan200.computercraft.shared.ModRegistry;
-import dan200.computercraft.shared.computer.blocks.AbstractComputerBlock;
-import net.minecraft.ChatFormatting;
-import net.minecraft.core.component.DataComponents;
-import net.minecraft.network.chat.Component;
-import net.minecraft.world.item.BlockItem;
-import net.minecraft.world.item.ItemStack;
-import net.minecraft.world.item.TooltipFlag;
-
-import java.util.List;
-
-public class ComputerItem extends BlockItem {
-    public ComputerItem(AbstractComputerBlock<?> block, Properties settings) {
-        super(block, settings);
-    }
-
-    @Override
-    public void appendHoverText(ItemStack stack, TooltipContext context, List<Component> list, TooltipFlag options) {
-        if (options.isAdvanced() || !stack.has(DataComponents.CUSTOM_NAME)) {
-            var id = stack.get(ModRegistry.DataComponents.COMPUTER_ID.get());
-            if (id != null) {
-                list.add(Component.translatable("gui.computercraft.tooltip.computer_id", id.id())
-                    .withStyle(ChatFormatting.GRAY));
-            }
-        }
-    }
-}

projects/common/src/main/java/dan200/computercraft/shared/computer/menu/ServerInputState.java

@@ -74,7 +74,7 @@ public class ServerInputState<T extends AbstractContainerMenu & ComputerMenu> im
     }
 
     private static boolean isValidClipboard(ByteBuffer buffer) {
-        for (int i = buffer.remaining(), max = buffer.limit(); i < max; i++) {
+        for (int i = buffer.position(), max = buffer.limit(); i < max; i++) {
             if (!StringUtil.isTypableChar(buffer.get(i))) return false;
         }
         return true;

projects/common/src/main/java/dan200/computercraft/shared/media/MountMedia.java

@@ -8,9 +8,7 @@ import dan200.computercraft.api.ComputerCraftAPI;
 import dan200.computercraft.api.filesystem.Mount;
 import dan200.computercraft.api.media.IMedia;
 import dan200.computercraft.shared.ModRegistry;
-import dan200.computercraft.shared.computer.items.ComputerItem;
 import dan200.computercraft.shared.config.ConfigSpec;
-import dan200.computercraft.shared.media.items.DiskItem;
 import dan200.computercraft.shared.util.DataComponentUtil;
 import dan200.computercraft.shared.util.NonNegativeId;
 import dan200.computercraft.shared.util.StorageCapacity;
@@ -27,12 +25,12 @@ import java.util.function.Supplier;
  */
 public final class MountMedia implements IMedia {
     /**
-     * A {@link MountMedia} implementation for {@linkplain ComputerItem computers}.
+     * A {@link MountMedia} implementation for {@linkplain ModRegistry.DataComponents#COMPUTER_ID computers}.
      */
     public static final IMedia COMPUTER = new MountMedia("computer", ModRegistry.DataComponents.COMPUTER_ID, false, ConfigSpec.computerSpaceLimit);
 
     /**
-     * A {@link MountMedia} implementation for {@linkplain DiskItem disks}.
+     * A {@link MountMedia} implementation for {@linkplain ModRegistry.Items#DISK disks}.
      */
     public static final IMedia DISK = new MountMedia("disk", ModRegistry.DataComponents.DISK_ID, true, ConfigSpec.floppySpaceLimit);
 

projects/common/src/main/java/dan200/computercraft/shared/media/items/DiskItem.java

@@ -1,45 +1,24 @@
-// Copyright Daniel Ratcliffe, 2011-2022. Do not distribute without permission.
+// SPDX-FileCopyrightText: 2025 The CC: Tweaked Developers
 //
-// SPDX-License-Identifier: LicenseRef-CCPL
+// SPDX-License-Identifier: MPL-2.0
 
 package dan200.computercraft.shared.media.items;
 
-import dan200.computercraft.annotations.ForgeOverride;
-import dan200.computercraft.shared.ModRegistry;
-import dan200.computercraft.shared.util.NonNegativeId;
-import net.minecraft.ChatFormatting;
-import net.minecraft.core.BlockPos;
-import net.minecraft.network.chat.Component;
-import net.minecraft.world.entity.player.Player;
+import dan200.computercraft.shared.peripheral.diskdrive.DiskDriveBlock;
+import net.minecraft.world.InteractionResult;
 import net.minecraft.world.item.Item;
-import net.minecraft.world.item.ItemStack;
-import net.minecraft.world.item.TooltipFlag;
-import net.minecraft.world.level.LevelReader;
-
-import java.util.List;
+import net.minecraft.world.item.context.UseOnContext;
 
+/**
+ * An item that can be shift-right-clicked into a {@link DiskDriveBlock}.
+ */
 public class DiskItem extends Item {
     public DiskItem(Properties settings) {
         super(settings);
     }
 
     @Override
-    public void appendHoverText(ItemStack stack, TooltipContext context, List<Component> list, TooltipFlag options) {
-        if (options.isAdvanced()) {
-            var id = stack.get(ModRegistry.DataComponents.DISK_ID.get());
-            if (id != null) {
-                list.add(Component.translatable("gui.computercraft.tooltip.disk_id", id.id())
-                    .withStyle(ChatFormatting.GRAY));
-            }
-        }
-    }
-
-    @ForgeOverride
-    public boolean doesSneakBypassUse(ItemStack stack, LevelReader world, BlockPos pos, Player player) {
-        return true;
-    }
-
-    public static int getDiskID(ItemStack stack) {
-        return NonNegativeId.getId(stack.get(ModRegistry.DataComponents.DISK_ID.get()));
+    public InteractionResult useOn(UseOnContext context) {
+        return DiskDriveBlock.defaultUseItemOn(context);
     }
 }

projects/common/src/main/java/dan200/computercraft/shared/media/items/PrintoutData.java

@@ -12,11 +12,16 @@ import dan200.computercraft.core.terminal.Terminal;
 import dan200.computercraft.shared.ModRegistry;
 import io.netty.buffer.ByteBuf;
 import net.minecraft.core.component.DataComponentHolder;
+import net.minecraft.network.chat.Component;
 import net.minecraft.network.codec.ByteBufCodecs;
 import net.minecraft.network.codec.StreamCodec;
+import net.minecraft.world.item.Item;
+import net.minecraft.world.item.TooltipFlag;
+import net.minecraft.world.item.component.TooltipProvider;
 
 import java.util.Arrays;
 import java.util.List;
+import java.util.function.Consumer;
 import java.util.stream.Stream;
 
 /**
@@ -27,7 +32,7 @@ import java.util.stream.Stream;
  * @see PrintoutItem
  * @see dan200.computercraft.shared.ModRegistry.DataComponents#PRINTOUT
  */
-public record PrintoutData(String title, List<Line> lines) implements PrintoutContents {
+public record PrintoutData(String title, List<Line> lines) implements PrintoutContents, TooltipProvider {
     public static final int LINE_LENGTH = 25;
     public static final int LINES_PER_PAGE = 21;
     public static final int MAX_PAGES = 16;
@@ -71,6 +76,11 @@ public record PrintoutData(String title, List<Line> lines) implements PrintoutCo
         PrintoutData::new
     );
 
+    @Override
+    public void addToTooltip(Item.TooltipContext context, Consumer<Component> out, TooltipFlag flag) {
+        if (!title().isEmpty()) out.accept(Component.literal(title()));
+    }
+
     /**
      * A single line on our printed pages.
      *

projects/common/src/main/java/dan200/computercraft/shared/media/items/PrintoutItem.java

@@ -12,30 +12,11 @@ import net.minecraft.world.InteractionResult;
 import net.minecraft.world.SimpleMenuProvider;
 import net.minecraft.world.entity.player.Player;
 import net.minecraft.world.item.Item;
-import net.minecraft.world.item.ItemStack;
-import net.minecraft.world.item.TooltipFlag;
 import net.minecraft.world.level.Level;
 
-import java.util.List;
-
 public class PrintoutItem extends Item {
-    public enum Type {
-        PAGE,
-        PAGES,
-        BOOK
-    }
-
-    private final Type type;
-
-    public PrintoutItem(Properties settings, Type type) {
+    public PrintoutItem(Properties settings) {
         super(settings);
-        this.type = type;
-    }
-
-    @Override
-    public void appendHoverText(ItemStack stack, TooltipContext context, List<Component> list, TooltipFlag options) {
-        var title = PrintoutData.getOrEmpty(stack).title();
-        if (!title.isEmpty()) list.add(Component.literal(title));
     }
 
     @Override
@@ -48,8 +29,4 @@ public class PrintoutItem extends Item {
         }
         return InteractionResult.SUCCESS;
     }
-
-    public Type getType() {
-        return type;
-    }
 }

projects/common/src/main/java/dan200/computercraft/shared/media/items/TreasureDisk.java

@@ -9,17 +9,25 @@ import com.mojang.serialization.codecs.RecordCodecBuilder;
 import dan200.computercraft.shared.ModRegistry;
 import net.minecraft.core.component.DataComponentHolder;
 import net.minecraft.network.FriendlyByteBuf;
+import net.minecraft.network.chat.Component;
 import net.minecraft.network.codec.ByteBufCodecs;
 import net.minecraft.network.codec.StreamCodec;
+import net.minecraft.world.item.Item;
+import net.minecraft.world.item.TooltipFlag;
+import net.minecraft.world.item.component.TooltipProvider;
+
+import java.util.function.Consumer;
 
 /**
- * Stores information about a {@linkplain TreasureDiskItem treasure disk's} mount.
+ * Stores information about a {@linkplain ModRegistry.Items#TREASURE_DISK treasure disk's} mount.
  *
  * @param name The name/title of the disk.
  * @param path The subpath to the resource
  * @see ModRegistry.DataComponents#TREASURE_DISK
  */
-public record TreasureDisk(String name, String path) {
+public record TreasureDisk(String name, String path) implements TooltipProvider {
+    public static final TreasureDisk UNDEFINED = new TreasureDisk("'missingno' by how did you get this anyway?", "undefined");
+
     public static final Codec<TreasureDisk> CODEC = RecordCodecBuilder.create(i -> i.group(
         Codec.STRING.fieldOf("name").forGetter(TreasureDisk::name),
         Codec.STRING.fieldOf("path").forGetter(TreasureDisk::path)
@@ -32,7 +40,11 @@ public record TreasureDisk(String name, String path) {
     );
 
     public static String getTitle(DataComponentHolder holder) {
-        var nbt = holder.get(ModRegistry.DataComponents.TREASURE_DISK.get());
-        return nbt != null ? nbt.name() : "'missingno' by how did you get this anyway?";
+        return holder.getOrDefault(ModRegistry.DataComponents.TREASURE_DISK.get(), UNDEFINED).name();
+    }
+
+    @Override
+    public void addToTooltip(Item.TooltipContext context, Consumer<Component> out, TooltipFlag flags) {
+        out.accept(Component.literal(name()));
     }
 }

projects/common/src/main/java/dan200/computercraft/shared/media/items/TreasureDiskItem.java

@@ -1,32 +0,0 @@
-// Copyright Daniel Ratcliffe, 2011-2022. Do not distribute without permission.
-//
-// SPDX-License-Identifier: LicenseRef-CCPL
-
-package dan200.computercraft.shared.media.items;
-
-import dan200.computercraft.annotations.ForgeOverride;
-import net.minecraft.core.BlockPos;
-import net.minecraft.network.chat.Component;
-import net.minecraft.world.entity.player.Player;
-import net.minecraft.world.item.Item;
-import net.minecraft.world.item.ItemStack;
-import net.minecraft.world.item.TooltipFlag;
-import net.minecraft.world.level.LevelReader;
-
-import java.util.List;
-
-public class TreasureDiskItem extends Item {
-    public TreasureDiskItem(Properties settings) {
-        super(settings);
-    }
-
-    @Override
-    public void appendHoverText(ItemStack stack, TooltipContext context, List<Component> list, TooltipFlag tooltipOptions) {
-        list.add(Component.literal(TreasureDisk.getTitle(stack)));
-    }
-
-    @ForgeOverride
-    public boolean doesSneakBypassUse(ItemStack stack, LevelReader world, BlockPos pos, Player player) {
-        return true;
-    }
-}

projects/common/src/main/java/dan200/computercraft/shared/media/items/TreasureDiskMedia.java

@@ -17,7 +17,7 @@ import org.jspecify.annotations.Nullable;
 import java.io.IOException;
 
 /**
- * An {@link IMedia} instance for {@linkplain TreasureDiskItem treasure disks}.
+ * An {@link IMedia} instance for {@linkplain ModRegistry.Items#TREASURE_DISK treasure disks}.
  */
 public final class TreasureDiskMedia implements IMedia {
     public static final IMedia INSTANCE = new TreasureDiskMedia();

projects/common/src/main/java/dan200/computercraft/shared/media/recipes/DiskRecipe.java

@@ -33,8 +33,8 @@ import net.minecraft.world.item.crafting.display.RecipeDisplay;
 import net.minecraft.world.item.crafting.display.ShapelessCraftingRecipeDisplay;
 import net.minecraft.world.item.crafting.display.SlotDisplay;
 import net.minecraft.world.level.Level;
+import org.jspecify.annotations.Nullable;
 
-import javax.annotation.Nullable;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.stream.Stream;

projects/common/src/main/java/dan200/computercraft/shared/media/recipes/PrintoutRecipe.java

@@ -24,8 +24,8 @@ import net.minecraft.world.item.crafting.display.RecipeDisplay;
 import net.minecraft.world.item.crafting.display.ShapelessCraftingRecipeDisplay;
 import net.minecraft.world.item.crafting.display.SlotDisplay;
 import net.minecraft.world.level.Level;
+import org.jspecify.annotations.Nullable;
 
-import javax.annotation.Nullable;
 import java.util.ArrayList;
 import java.util.List;
 

projects/common/src/main/java/dan200/computercraft/shared/peripheral/diskdrive/DiskDriveBlock.java

@@ -7,13 +7,11 @@ package dan200.computercraft.shared.peripheral.diskdrive;
 import com.mojang.serialization.MapCodec;
 import dan200.computercraft.shared.ModRegistry;
 import dan200.computercraft.shared.common.HorizontalContainerBlock;
-import dan200.computercraft.shared.platform.PlatformHelper;
 import net.minecraft.core.BlockPos;
 import net.minecraft.core.Direction;
-import net.minecraft.world.InteractionHand;
 import net.minecraft.world.InteractionResult;
-import net.minecraft.world.entity.player.Player;
-import net.minecraft.world.item.ItemStack;
+import net.minecraft.world.item.Item;
+import net.minecraft.world.item.context.UseOnContext;
 import net.minecraft.world.level.Level;
 import net.minecraft.world.level.block.BaseEntityBlock;
 import net.minecraft.world.level.block.Block;
@@ -23,7 +21,6 @@ import net.minecraft.world.level.block.entity.BlockEntityType;
 import net.minecraft.world.level.block.state.BlockState;
 import net.minecraft.world.level.block.state.StateDefinition;
 import net.minecraft.world.level.block.state.properties.EnumProperty;
-import net.minecraft.world.phys.BlockHitResult;
 import org.jspecify.annotations.Nullable;
 
 public class DiskDriveBlock extends HorizontalContainerBlock {
@@ -50,19 +47,24 @@ public class DiskDriveBlock extends HorizontalContainerBlock {
         return CODEC;
     }
 
-    @Override
-    protected InteractionResult useItemOn(ItemStack stack, BlockState state, Level level, BlockPos pos, Player player, InteractionHand hand, BlockHitResult hit) {
-        if (player.isCrouching() && level.getBlockEntity(pos) instanceof DiskDriveBlockEntity drive) {
-            // Try to put a disk into the drive
-            if (stack.isEmpty()) return InteractionResult.TRY_WITH_EMPTY_HAND;
-
-            if (!level.isClientSide && drive.getDiskStack().isEmpty() && PlatformHelper.get().getMedia(stack) != null) {
-                drive.setDiskStack(stack.split(1));
+    /**
+     * A default implementation of {@link Item#useOn(UseOnContext)} for items that can be placed into a drive.
+     *
+     * @param context The context of this item usage action.
+     * @return Whether the item was placed or not.
+     */
+    public static InteractionResult defaultUseItemOn(UseOnContext context) {
+        var level = context.getLevel();
+        var blockPos = context.getClickedPos();
+        var blockState = level.getBlockState(blockPos);
+        if (blockState.is(ModRegistry.Blocks.DISK_DRIVE.get()) && blockState.getValue(STATE) == DiskDriveState.EMPTY) {
+            if (!level.isClientSide && level.getBlockEntity(blockPos) instanceof DiskDriveBlockEntity drive && drive.getDiskStack().isEmpty()) {
+                drive.setDiskStack(context.getItemInHand().split(1));
             }
             return InteractionResult.SUCCESS;
         }
 
-        return super.useItemOn(stack, state, level, pos, player, hand, hit);
+        return InteractionResult.PASS;
     }
 
     @Nullable

projects/common/src/main/java/dan200/computercraft/shared/peripheral/diskdrive/DiskDrivePeripheral.java

@@ -9,7 +9,7 @@ import dan200.computercraft.api.lua.LuaFunction;
 import dan200.computercraft.api.peripheral.IComputerAccess;
 import dan200.computercraft.api.peripheral.IPeripheral;
 import dan200.computercraft.core.util.StringUtil;
-import dan200.computercraft.shared.media.items.DiskItem;
+import dan200.computercraft.shared.ModRegistry;
 import org.jspecify.annotations.Nullable;
 
 import java.util.Optional;
@@ -170,8 +170,8 @@ public class DiskDrivePeripheral implements IPeripheral {
      */
     @LuaFunction
     public final @Nullable Object @Nullable [] getDiskID() {
-        var disk = diskDrive.getMedia().stack();
-        return disk.getItem() instanceof DiskItem ? new Object[]{ DiskItem.getDiskID(disk) } : null;
+        var id = diskDrive.getMedia().stack().get(ModRegistry.DataComponents.DISK_ID.get());
+        return id != null ? new Object[]{ id.id() } : null;
     }
 
     @Override

projects/common/src/main/java/dan200/computercraft/shared/peripheral/generic/methods/AbstractFluidMethods.java

@@ -41,9 +41,9 @@ public abstract class AbstractFluidMethods<T> implements GenericPeripheral {
      * The returned table is sparse, and so empty tanks will be `nil` - it is recommended to loop over using [`pairs`]
      * rather than [`ipairs`].
      *
-     * @param fluids The current fluid handler.
+     * @param fluids The current fluid storage.
      * @return All tanks.
-     * @cc.treturn { (table|nil)... } All tanks in this fluid storage.
+     * @cc.treturn { (table|nil)... } Basic information about all fluids in this fluid storage.
      */
     @LuaFunction(mainThread = true)
     public abstract Map<Integer, Map<String, ?>> tanks(T fluids);

projects/common/src/main/java/dan200/computercraft/shared/peripheral/generic/methods/AbstractInventoryMethods.java

@@ -56,8 +56,8 @@ public abstract class AbstractInventoryMethods<T> implements GenericPeripheral {
      * rather than [`ipairs`].
      *
      * @param inventory The current inventory.
-     * @return All items in this inventory.
-     * @cc.treturn { (table|nil)... } All items in this inventory.
+     * @return Basic information about all items in this inventory.
+     * @cc.treturn { (table|nil)... } Basic information about all items in this inventory.
      * @cc.usage Find an adjacent chest and print all items in it.
      *
      * <pre>{@code
@@ -86,9 +86,8 @@ public abstract class AbstractInventoryMethods<T> implements GenericPeripheral {
      *
      * @param inventory The current inventory.
      * @param slot      The slot to get information about.
-     * @return Information about the item in this slot, or {@code nil} if not present.
+     * @return Information about the item in this slot, or {@code nil} if it is empty.
      * @throws LuaException If the slot is out of range.
-     * @cc.treturn table Information about the item in this slot, or {@code nil} if not present.
      * @cc.usage Print some information about the first in a chest.
      *
      * <pre>{@code
@@ -106,7 +105,7 @@ public abstract class AbstractInventoryMethods<T> implements GenericPeripheral {
      */
     @Nullable
     @LuaFunction(mainThread = true)
-    public abstract Map<String, ?> getItemDetail(T inventory, int slot) throws LuaException;
+    public abstract Map<?, ?> getItemDetail(T inventory, int slot) throws LuaException;
 
     /**
      * Get the maximum number of items which can be stored in this slot.

projects/common/src/main/java/dan200/computercraft/shared/peripheral/modem/wired/CableBlock.java

@@ -252,7 +252,7 @@ public class CableBlock extends Block implements SimpleWaterloggedBlock, EntityB
     }
 
     @Override
-    protected void neighborChanged(BlockState state, Level level, BlockPos pos, Block neighborBlock, @Nullable Orientation orientation, boolean isMoving) {
+    protected final void neighborChanged(BlockState state, Level level, BlockPos pos, Block neighborBlock, @Nullable Orientation orientation, boolean isMoving) {
         if (level.getBlockEntity(pos) instanceof CableBlockEntity modem) modem.neighborChanged();
     }
 

projects/common/src/main/java/dan200/computercraft/shared/peripheral/printer/PrinterBlockEntity.java

@@ -170,8 +170,7 @@ public final class PrinterBlockEntity extends AbstractContainerBlockEntity imple
     }
 
     static boolean isPaper(ItemStack stack) {
-        var item = stack.getItem();
-        return item == Items.PAPER || item == ModRegistry.Items.PRINTED_PAGE.get();
+        return stack.is(Items.PAPER) || stack.is(ModRegistry.Items.PRINTED_PAGE.get());
     }
 
     private boolean canInputPage() {

projects/common/src/main/java/dan200/computercraft/shared/pocket/items/PocketComputerItem.java

@@ -23,7 +23,6 @@ import dan200.computercraft.shared.pocket.core.PocketBrain;
 import dan200.computercraft.shared.pocket.core.PocketHolder;
 import dan200.computercraft.shared.pocket.core.PocketServerComputer;
 import dan200.computercraft.shared.util.*;
-import net.minecraft.ChatFormatting;
 import net.minecraft.core.HolderLookup;
 import net.minecraft.network.chat.Component;
 import net.minecraft.server.MinecraftServer;
@@ -36,11 +35,9 @@ import net.minecraft.world.entity.item.ItemEntity;
 import net.minecraft.world.entity.player.Player;
 import net.minecraft.world.item.Item;
 import net.minecraft.world.item.ItemStack;
-import net.minecraft.world.item.TooltipFlag;
 import net.minecraft.world.level.Level;
 import org.jspecify.annotations.Nullable;
 
-import java.util.List;
 import java.util.Objects;
 
 public class PocketComputerItem extends Item {
@@ -184,18 +181,6 @@ public class PocketComputerItem extends Item {
         }
     }
 
-
-    @Override
-    public void appendHoverText(ItemStack stack, TooltipContext context, List<Component> list, TooltipFlag flag) {
-        if (flag.isAdvanced() || getLabel(stack) == null) {
-            var id = stack.get(ModRegistry.DataComponents.COMPUTER_ID.get());
-            if (id != null) {
-                list.add(Component.translatable("gui.computercraft.tooltip.computer_id", id.id())
-                    .withStyle(ChatFormatting.GRAY));
-            }
-        }
-    }
-
     @Nullable
     @ForgeOverride
     public String getCreatorModId(HolderLookup.Provider registries, ItemStack stack) {

projects/common/src/main/java/dan200/computercraft/shared/recipe/CustomShapelessRecipe.java

@@ -12,8 +12,8 @@ import net.minecraft.world.item.crafting.display.RecipeDisplay;
 import net.minecraft.world.item.crafting.display.ShapelessCraftingRecipeDisplay;
 import net.minecraft.world.item.crafting.display.SlotDisplay;
 import net.minecraft.world.level.Level;
+import org.jspecify.annotations.Nullable;
 
-import javax.annotation.Nullable;
 import java.util.List;
 import java.util.function.Function;
 

projects/common/src/main/java/dan200/computercraft/shared/recipe/function/CopyComponents.java

@@ -17,8 +17,8 @@ import net.minecraft.world.item.crafting.CraftingInput;
 import net.minecraft.world.item.crafting.Ingredient;
 import net.minecraft.world.level.ItemLike;
 import net.minecraft.world.level.storage.loot.functions.CopyComponentsFunction;
+import org.jspecify.annotations.Nullable;
 
-import javax.annotation.Nullable;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Optional;

projects/common/src/main/java/dan200/computercraft/shared/turtle/apis/TurtleAPI.java

@@ -13,7 +13,9 @@ import dan200.computercraft.core.metrics.Metrics;
 import dan200.computercraft.core.metrics.MetricsObserver;
 import dan200.computercraft.shared.peripheral.generic.methods.AbstractInventoryMethods;
 import dan200.computercraft.shared.turtle.core.*;
+import org.jspecify.annotations.Nullable;
 
+import java.util.Map;
 import java.util.Optional;
 
 /**
@@ -659,6 +661,7 @@ public class TurtleAPI implements ILuaAPI {
      * @cc.treturn [2] string The reason equipping this item failed.
      * @cc.since 1.6
      * @see #equipRight()
+     * @see #getEquippedLeft()
      */
     @LuaFunction
     public final MethodResult equipLeft() {
@@ -678,12 +681,45 @@ public class TurtleAPI implements ILuaAPI {
      * @cc.treturn [2] string The reason equipping this item failed.
      * @cc.since 1.6
      * @see #equipLeft()
+     * @see #getEquippedRight()
      */
     @LuaFunction
     public final MethodResult equipRight() {
         return trackCommand(new TurtleEquipCommand(TurtleSide.RIGHT));
     }
 
+    /**
+     * Get the upgrade currently equipped on the left of the turtle.
+     * <p>
+     * This returns information about the currently equipped item, in the same form as
+     * {@link #getItemDetail(ILuaContext, Optional, Optional)}.
+     *
+     * @return Information about the currently equipped item, or {@code nil} if no upgrade is equipped.
+     * @see #equipLeft()
+     * @cc.since 1.116.0
+     */
+    @LuaFunction(mainThread = true)
+    public final @Nullable Map<?, ?> getEquippedLeft() {
+        var upgrade = turtle.getUpgradeWithData(TurtleSide.LEFT);
+        return upgrade == null ? null : VanillaDetailRegistries.ITEM_STACK.getDetails(upgrade.getUpgradeItem());
+    }
+
+    /**
+     * Get the upgrade currently equipped on the right of the turtle.
+     * <p>
+     * This returns information about the currently equipped item, in the same form as
+     * {@link #getItemDetail(ILuaContext, Optional, Optional)}.
+     *
+     * @return Information about the currently equipped item, or {@code nil} if no upgrade is equipped.
+     * @see #equipRight()
+     * @cc.since 1.116.0
+     */
+    @LuaFunction(mainThread = true)
+    public final @Nullable Map<?, ?> getEquippedRight() {
+        var upgrade = turtle.getUpgradeWithData(TurtleSide.RIGHT);
+        return upgrade == null ? null : VanillaDetailRegistries.ITEM_STACK.getDetails(upgrade.getUpgradeItem());
+    }
+
     /**
      * Get information about the block in front of the turtle.
      *
@@ -745,7 +781,7 @@ public class TurtleAPI implements ILuaAPI {
      *                 more information about the item at the cost of taking longer to run.
      * @return The command result.
      * @throws LuaException If the slot is out of range.
-     * @cc.treturn nil|table Information about the given slot, or {@code nil} if it is empty.
+     * @cc.treturn nil|table Information about the item in this slot, or {@code nil} if it is empty.
      * @cc.since 1.64
      * @cc.changed 1.90.0 Added detailed parameter.
      * @cc.usage Print the current slot, assuming it contains 13 dirt.

projects/common/src/main/java/dan200/computercraft/shared/turtle/blocks/TurtleBlockEntity.java

@@ -170,8 +170,8 @@ public class TurtleBlockEntity extends AbstractComputerBlockEntity implements Ba
     }
 
     @Override
-    protected void collectImplicitComponents(DataComponentMap.Builder builder) {
-        super.collectImplicitComponents(builder);
+    protected void collectSafeComponents(DataComponentMap.Builder builder) {
+        super.collectSafeComponents(builder);
 
         builder.set(DataComponents.DYED_COLOR, brain.getColour() == -1 ? null : new DyedItemColor(brain.getColour(), false));
         builder.set(ModRegistry.DataComponents.OVERLAY.get(), brain.getOverlay());

projects/common/src/main/java/dan200/computercraft/shared/turtle/items/TurtleItem.java

@@ -11,7 +11,6 @@ import dan200.computercraft.api.turtle.TurtleSide;
 import dan200.computercraft.api.upgrades.UpgradeData;
 import dan200.computercraft.impl.TurtleUpgrades;
 import dan200.computercraft.shared.ModRegistry;
-import dan200.computercraft.shared.computer.items.ComputerItem;
 import dan200.computercraft.shared.turtle.TurtleOverlay;
 import dan200.computercraft.shared.turtle.blocks.TurtleBlock;
 import net.minecraft.core.HolderLookup;
@@ -19,11 +18,12 @@ import net.minecraft.core.cauldron.CauldronInteraction;
 import net.minecraft.core.component.DataComponents;
 import net.minecraft.network.chat.Component;
 import net.minecraft.world.InteractionResult;
+import net.minecraft.world.item.BlockItem;
 import net.minecraft.world.item.ItemStack;
 import net.minecraft.world.level.block.LayeredCauldronBlock;
 import org.jspecify.annotations.Nullable;
 
-public class TurtleItem extends ComputerItem {
+public class TurtleItem extends BlockItem {
     public TurtleItem(TurtleBlock block, Properties settings) {
         super(block, settings);
     }

projects/common/src/main/java/dan200/computercraft/shared/util/NonNegativeId.java

@@ -7,7 +7,9 @@ package dan200.computercraft.shared.util;
 import com.mojang.serialization.Codec;
 import dan200.computercraft.api.ComputerCraftAPI;
 import io.netty.buffer.ByteBuf;
+import net.minecraft.ChatFormatting;
 import net.minecraft.core.component.DataComponentType;
+import net.minecraft.network.chat.Component;
 import net.minecraft.network.codec.ByteBufCodecs;
 import net.minecraft.network.codec.StreamCodec;
 import net.minecraft.server.MinecraftServer;
@@ -15,6 +17,8 @@ import net.minecraft.util.ExtraCodecs;
 import net.minecraft.world.item.ItemStack;
 import org.jspecify.annotations.Nullable;
 
+import java.util.function.Consumer;
+
 /**
  * A non-negative integer id, used for computer and disk ids.
  *
@@ -47,4 +51,8 @@ public record NonNegativeId(int id) {
         stack.set(component, new NonNegativeId(diskID));
         return diskID;
     }
+
+    public void addToTooltip(String translation, Consumer<Component> out) {
+        out.accept(Component.translatable(translation, id()).withStyle(ChatFormatting.GRAY));
+    }
 }

projects/common/src/main/resources/assets/computercraft/models/block/turtle_colour.json

@@ -1,7 +1,7 @@
 {
     "parent": "computercraft:block/turtle_base",
     "textures": {
-        "texture": "computercraft:block/turtle_colour",
+        "particle": "computercraft:block/turtle_colour_body_front",
         "body_back": "computercraft:block/turtle_colour_body_back",
         "body_backpack": "computercraft:block/turtle_colour_body_backpack",
         "body_bottom": "computercraft:block/turtle_colour_body_bottom",

projects/common/src/testFixtures/java/dan200/computercraft/test/shared/ItemStackMatcher.java

@@ -27,6 +27,11 @@ public class ItemStackMatcher extends TypeSafeMatcher<ItemStack> {
         description.appendValue(stack).appendValue(stack.getComponentsPatch());
     }
 
+    @Override
+    protected void describeMismatchSafely(ItemStack item, Description description) {
+        description.appendText("was ").appendValue(stack).appendValue(stack.getComponentsPatch());
+    }
+
     public static Matcher<ItemStack> isStack(ItemStack stack) {
         return new ItemStackMatcher(stack);
     }

projects/common/src/testMod/java/dan200/computercraft/gametest/core/CCTestCommand.java

@@ -55,7 +55,7 @@ class CCTestCommand {
             }))
             .then(literal("regen-structures").executes(context -> {
                 for (var function : GameTestRegistry.getAllTestFunctions()) {
-                    dispatcher.execute("test import " + function.testName(), context.getSource());
+                    dispatcher.execute("test import " + function.structureName(), context.getSource());
                     TestCommandAccessor.callExportTestStructure(context.getSource(), function.structureName());
                 }
                 return 0;

projects/common/src/testMod/java/dan200/computercraft/mixin/gametest/NbtUtilsMixin.java

@@ -0,0 +1,39 @@
+// SPDX-FileCopyrightText: 2025 The CC: Tweaked Developers
+//
+// SPDX-License-Identifier: MPL-2.0
+
+package dan200.computercraft.mixin.gametest;
+
+import dan200.computercraft.gametest.core.TestHooks;
+import net.minecraft.nbt.CompoundTag;
+import net.minecraft.nbt.NbtUtils;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
+
+import java.util.Objects;
+
+/**
+ * Patches {@link NbtUtils#structureToSnbt(CompoundTag)} to remove air blocks from the structure file. This
+ * significantly reduces the size of our generated templates.
+ *
+ * @see StructureTemplateManagerMixin Loading structures
+ * @see NbtUtils#structureToSnbt(CompoundTag)
+ */
+@Mixin(NbtUtils.class)
+class NbtUtilsMixin {
+    @Inject(method = "structureToSnbt", at = @At("HEAD"))
+    @SuppressWarnings("unused")
+    private static void structureToSnbt(CompoundTag tag, CallbackInfoReturnable<String> ci) {
+        // Load in the structure, strip out air, then save it back again.
+        var structure = Objects.requireNonNull(TestHooks.getStructureManager()).readStructure(tag);
+        var palette = ((StructureTemplateAccessor) structure).getPalettes().get(0);
+        palette.blocks().removeIf(x -> x.state().isAir());
+        var newTag = structure.save(new CompoundTag());
+
+        // Overwrite the existing tag.
+        tag.getAllKeys().clear();
+        for (var key : newTag.getAllKeys()) tag.put(key, newTag.get(key));
+    }
+}

projects/common/src/testMod/java/dan200/computercraft/mixin/gametest/StructureTemplateAccessor.java

@@ -0,0 +1,17 @@
+// SPDX-FileCopyrightText: 2025 The CC: Tweaked Developers
+//
+// SPDX-License-Identifier: MPL-2.0
+
+package dan200.computercraft.mixin.gametest;
+
+import net.minecraft.world.level.levelgen.structure.templatesystem.StructureTemplate;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.gen.Accessor;
+
+import java.util.List;
+
+@Mixin(StructureTemplate.class)
+interface StructureTemplateAccessor {
+    @Accessor
+    List<StructureTemplate.Palette> getPalettes();
+}

projects/common/src/testMod/java/dan200/computercraft/mixin/gametest/StructureTemplateManagerMixin.java

@@ -4,10 +4,20 @@
 
 package dan200.computercraft.mixin.gametest;
 
+import net.minecraft.core.BlockPos;
+import net.minecraft.resources.ResourceLocation;
+import net.minecraft.world.level.block.Blocks;
+import net.minecraft.world.level.levelgen.structure.templatesystem.StructureTemplate;
 import net.minecraft.world.level.levelgen.structure.templatesystem.StructureTemplateManager;
 import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
 import org.spongepowered.asm.mixin.injection.Redirect;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
+
+import java.util.HashSet;
+import java.util.Optional;
+import java.util.Set;
 
 @Mixin(StructureTemplateManager.class)
 class StructureTemplateManagerMixin {
@@ -22,4 +32,36 @@ class StructureTemplateManagerMixin {
     private boolean getRunningInIde() {
         return true;
     }
+
+    /**
+     * Add missing {@link Blocks#AIR} to our "reduced" game test structures.
+     *
+     * @param id The structure to load.
+     * @param ci The callback info.
+     * @see NbtUtilsMixin Saving structures
+     * @see StructureTemplateManagerMixin#loadFromTestStructures(ResourceLocation, CallbackInfoReturnable)
+     */
+    @Inject(method = "loadFromTestStructures", at = @At(value = "RETURN"))
+    @SuppressWarnings("unused")
+    private void loadFromTestStructures(ResourceLocation id, CallbackInfoReturnable<Optional<StructureTemplate>> ci) {
+        ci.getReturnValue().ifPresent(StructureTemplateManagerMixin::addMissingAir);
+    }
+
+    private static void addMissingAir(StructureTemplate template) {
+        var size = template.getSize();
+        var palette = ((StructureTemplateAccessor) template).getPalettes().getFirst();
+
+        Set<BlockPos> positions = new HashSet<>();
+        for (var x = 0; x < size.getX(); x++) {
+            for (var y = 0; y < size.getY(); y++) {
+                for (var z = 0; z < size.getZ(); z++) positions.add(new BlockPos(x, y, z));
+            }
+        }
+
+        for (var block : palette.blocks()) positions.remove(block.pos());
+
+        for (var pos : positions) {
+            palette.blocks().add(new StructureTemplate.StructureBlockInfo(pos, Blocks.AIR.defaultBlockState(), null));
+        }
+    }
 }

projects/common/src/testMod/kotlin/dan200/computercraft/gametest/Disk_Drive_Test.kt

@@ -194,6 +194,24 @@ class Disk_Drive_Test {
         }
     }
 
+    /**
+     * Asserts items can be inserted into a disk drive.
+     */
+    @GameTest
+    fun Can_insert_items(helper: GameTestHelper) = helper.sequence {
+        thenWaitUntil {
+            helper.assertContainerExactly(BlockPos(2, 1, 2), listOf(ItemStack(ModRegistry.Items.COMPUTER_NORMAL.get())))
+        }
+    }
+
+    /**
+     * Asserts items can be removed from a disk drive.
+     */
+    @GameTest
+    fun Can_extract_items(helper: GameTestHelper) = helper.sequence {
+        thenWaitUntil { helper.assertContainerEmpty(BlockPos(2, 2, 2)) }
+    }
+
     /**
      * Loads a structure created on an older version of the game, and checks that data fixers have been applied.
      */

projects/common/src/testMod/kotlin/dan200/computercraft/gametest/Printer_Test.kt

@@ -192,6 +192,25 @@ class Printer_Test {
         }
     }
 
+    /**
+     * Asserts items can be inserted into a printer.
+     */
+    @GameTest
+    fun Can_insert_items(helper: GameTestHelper) = helper.sequence {
+        thenWaitUntil {
+            helper.assertContainerExactly(BlockPos(1, 1, 2), listOf(ItemStack.EMPTY, ItemStack(Items.PAPER)))
+            helper.assertContainerExactly(BlockPos(3, 1, 2), listOf(ItemStack(Items.BLACK_DYE)))
+        }
+    }
+
+    /**
+     * Asserts items can be removed from a printer.
+     */
+    @GameTest
+    fun Can_extract_items(helper: GameTestHelper) = helper.sequence {
+        thenWaitUntil { helper.assertContainerEmpty(BlockPos(2, 2, 2)) }
+    }
+
     /**
      * Loads a structure created on an older version of the game, and checks that data fixers have been applied.
      */

projects/common/src/testMod/kotlin/dan200/computercraft/gametest/Printout_Test.kt

@@ -5,9 +5,20 @@
 package dan200.computercraft.gametest
 
 import dan200.computercraft.gametest.api.*
+import dan200.computercraft.shared.ModRegistry
+import dan200.computercraft.shared.media.items.PrintoutData
+import dan200.computercraft.shared.util.DataComponentUtil
+import dan200.computercraft.test.shared.ItemStackMatcher.isStack
+import net.minecraft.gametest.framework.GameTest
 import net.minecraft.gametest.framework.GameTestGenerator
 import net.minecraft.gametest.framework.GameTestHelper
 import net.minecraft.gametest.framework.TestFunction
+import net.minecraft.world.item.Item
+import net.minecraft.world.item.ItemStack
+import net.minecraft.world.item.Items
+import org.hamcrest.MatcherAssert.assertThat
+import org.junit.jupiter.api.Assertions.assertEquals
+import java.util.function.Supplier
 
 class Printout_Test {
     /**
@@ -56,4 +67,54 @@ class Printout_Test {
 
         thenExecute { helper.level.dayTime = Times.NOON }
     }
+
+    @GameTest(template = "default")
+    fun Craft_pages(helper: GameTestHelper) = helper.immediate {
+        // Assert that crafting with only one page fails
+        helper.assertNotCraftable(ItemStack(ModRegistry.Items.PRINTED_PAGE.get()), ItemStack(Items.STRING))
+
+        // Assert that crafting with no pages fails
+        helper.assertNotCraftable(ItemStack(Items.PAPER), ItemStack(Items.PAPER), ItemStack(Items.STRING))
+
+        // Assert that crafting with a book fails
+        helper.assertNotCraftable(ItemStack(ModRegistry.Items.PRINTED_PAGE.get()), ItemStack(ModRegistry.Items.PRINTED_BOOK.get()), ItemStack(Items.STRING))
+
+        assertThat(
+            helper.craftItem(
+                createPrintoutOf(ModRegistry.Items.PRINTED_PAGE, "First"),
+                createPrintoutOf(ModRegistry.Items.PRINTED_PAGES, "First"),
+                ItemStack(Items.STRING),
+            ),
+            isStack(createPrintoutOf(ModRegistry.Items.PRINTED_PAGES, "First", 2)),
+        )
+    }
+
+    @GameTest(template = "default")
+    fun Craft_book(helper: GameTestHelper) = helper.immediate {
+        // Assert that crafting with no pages fails
+        helper.assertNotCraftable(ItemStack(Items.PAPER), ItemStack(Items.PAPER), ItemStack(Items.STRING), ItemStack(Items.LEATHER))
+
+        // Assert that crafting with only one page works
+        assertEquals(
+            ModRegistry.Items.PRINTED_BOOK.get(),
+            helper.craftItem(ItemStack(ModRegistry.Items.PRINTED_PAGE.get()), ItemStack(Items.STRING), ItemStack(Items.LEATHER)).item,
+        )
+
+        assertThat(
+            helper.craftItem(
+                createPrintoutOf(ModRegistry.Items.PRINTED_PAGE, "First"),
+                createPrintoutOf(ModRegistry.Items.PRINTED_PAGES, "First"),
+                ItemStack(Items.STRING),
+                ItemStack(Items.LEATHER),
+            ),
+            isStack(createPrintoutOf(ModRegistry.Items.PRINTED_BOOK, "First", 2)),
+        )
+    }
+
+    private fun createPrintoutOf(item: Supplier<out Item>, title: String, pages: Int = 1): ItemStack {
+        val line =
+            PrintoutData.Line(" ".repeat(PrintoutData.LINE_LENGTH), 'b'.toString().repeat(PrintoutData.LINE_LENGTH))
+        val lines = List(PrintoutData.LINES_PER_PAGE * pages) { line }
+        return DataComponentUtil.createStack(item.get(), ModRegistry.DataComponents.PRINTOUT.get(), PrintoutData(title, lines))
+    }
 }

projects/common/src/testMod/kotlin/dan200/computercraft/gametest/Recipe_Test.kt

@@ -6,19 +6,16 @@ package dan200.computercraft.gametest
 
 import com.mojang.authlib.GameProfile
 import dan200.computercraft.gametest.api.Structures
+import dan200.computercraft.gametest.api.craftItem
 import dan200.computercraft.gametest.api.sequence
 import dan200.computercraft.shared.ModRegistry
-import net.minecraft.core.NonNullList
 import net.minecraft.core.component.DataComponentPatch
 import net.minecraft.core.component.DataComponents
 import net.minecraft.gametest.framework.GameTest
-import net.minecraft.gametest.framework.GameTestAssertException
 import net.minecraft.gametest.framework.GameTestHelper
 import net.minecraft.world.item.ItemStack
 import net.minecraft.world.item.Items
 import net.minecraft.world.item.component.ResolvableProfile
-import net.minecraft.world.item.crafting.CraftingInput
-import net.minecraft.world.item.crafting.RecipeType
 import org.junit.jupiter.api.Assertions.assertEquals
 import java.util.*
 
@@ -31,16 +28,10 @@ class Recipe_Test {
     @GameTest(template = Structures.DEFAULT)
     fun Craft_result_has_nbt(context: GameTestHelper) = context.sequence {
         thenExecute {
-            val items = NonNullList.withSize(3 * 3, ItemStack.EMPTY)
-            items[0] = ItemStack(Items.SKELETON_SKULL)
-            items[1] = ItemStack(ModRegistry.Items.COMPUTER_ADVANCED.get())
-            val container = CraftingInput.of(3, 3, items)
-
-            val recipe = context.level.server.recipeManager
-                .getRecipeFor(RecipeType.CRAFTING, container, context.level)
-                .orElseThrow { GameTestAssertException("No recipe matches") }
-
-            val result = recipe.value.assemble(container, context.level.registryAccess())
+            val result = context.craftItem(
+                ItemStack(Items.SKELETON_SKULL),
+                ItemStack(ModRegistry.Items.COMPUTER_ADVANCED.get()),
+            )
 
             val profile = GameProfile(UUID.fromString("f3c8d69b-0776-4512-8434-d1b2165909eb"), "dan200")
 

projects/common/src/testMod/kotlin/dan200/computercraft/gametest/Turtle_Test.kt

@@ -6,7 +6,7 @@ package dan200.computercraft.gametest
 
 import dan200.computercraft.api.ComputerCraftAPI
 import dan200.computercraft.api.ComputerCraftTags
-import dan200.computercraft.api.detail.BasicItemDetailProvider
+import dan200.computercraft.api.detail.ComponentDetailProvider
 import dan200.computercraft.api.detail.VanillaDetailRegistries
 import dan200.computercraft.api.lua.ObjectArguments
 import dan200.computercraft.api.turtle.ITurtleUpgrade
@@ -18,7 +18,7 @@ import dan200.computercraft.gametest.core.TestHooks
 import dan200.computercraft.mixin.gametest.GameTestHelperAccessor
 import dan200.computercraft.mixin.gametest.GameTestInfoAccessor
 import dan200.computercraft.shared.ModRegistry
-import dan200.computercraft.shared.media.items.PrintoutItem
+import dan200.computercraft.shared.media.items.PrintoutData
 import dan200.computercraft.shared.peripheral.modem.wired.CableBlock
 import dan200.computercraft.shared.peripheral.modem.wired.CableModemVariant
 import dan200.computercraft.shared.peripheral.monitor.MonitorBlock
@@ -455,16 +455,16 @@ class Turtle_Test {
         thenExecute {
             VanillaDetailRegistries.ITEM_STACK.addProvider(
                 object :
-                    BasicItemDetailProvider<PrintoutItem>("printout", PrintoutItem::class.java) {
-                    override fun provideDetails(data: MutableMap<in String, Any>, stack: ItemStack, item: PrintoutItem) {
-                        data["type"] = item.type.toString().lowercase()
+                    ComponentDetailProvider<PrintoutData>("printout", ModRegistry.DataComponents.PRINTOUT.get()) {
+                    override fun provideComponentDetails(data: MutableMap<in String, Any>, component: PrintoutData) {
+                        data["pages"] = component.pages()
                     }
                 },
             )
         }
         thenOnComputer {
             val details = getTurtleItemDetail(detailed = true)
-            assertEquals(mapOf("type" to "page"), details["printout"]) {
+            assertEquals(mapOf("pages" to 1), details["printout"]) {
                 "Printout information is returned (whole map is $details)"
             }
         }
@@ -955,6 +955,24 @@ class Turtle_Test {
         }
     }
 
+    /**
+     * Asserts items can be inserted into a turtle.
+     */
+    @GameTest
+    fun Can_insert_items(helper: GameTestHelper) = helper.sequence {
+        thenWaitUntil {
+            helper.assertContainerExactly(BlockPos(2, 1, 2), listOf(ItemStack(ModRegistry.Items.COMPUTER_NORMAL.get())))
+        }
+    }
+
+    /**
+     * Asserts items can be removed from a turtle.
+     */
+    @GameTest
+    fun Can_extract_items(helper: GameTestHelper) = helper.sequence {
+        thenWaitUntil { helper.assertContainerEmpty(BlockPos(2, 2, 2)) }
+    }
+
     /**
      * Render turtles as an item.
      */

projects/common/src/testMod/kotlin/dan200/computercraft/gametest/api/TestExtensions.kt

@@ -15,6 +15,7 @@ import dan200.computercraft.test.shared.ItemStackMatcher.isStack
 import net.minecraft.commands.arguments.blocks.BlockInput
 import net.minecraft.core.BlockPos
 import net.minecraft.core.Direction
+import net.minecraft.core.NonNullList
 import net.minecraft.core.registries.BuiltInRegistries
 import net.minecraft.gametest.framework.*
 import net.minecraft.resources.ResourceLocation
@@ -25,6 +26,8 @@ import net.minecraft.world.entity.EntityType
 import net.minecraft.world.item.Item
 import net.minecraft.world.item.ItemStack
 import net.minecraft.world.item.context.UseOnContext
+import net.minecraft.world.item.crafting.CraftingInput
+import net.minecraft.world.item.crafting.RecipeType
 import net.minecraft.world.level.GameType
 import net.minecraft.world.level.block.Blocks
 import net.minecraft.world.level.block.entity.BarrelBlockEntity
@@ -340,6 +343,34 @@ fun GameTestHelper.placeItemAt(stack: ItemStack, pos: BlockPos, direction: Direc
     stack.useOn(UseOnContext(player, InteractionHand.MAIN_HAND, hit))
 }
 
+/**
+ * Assert a recipe is not craftable.
+ */
+fun GameTestHelper.assertNotCraftable(vararg items: ItemStack) {
+    val container = NonNullList.withSize(3 * 3, ItemStack.EMPTY)
+    for ((i, item) in items.withIndex()) container[i] = item
+    val input = CraftingInput.of(3, 3, container)
+
+    val recipe = level.server.recipeManager.getRecipeFor(RecipeType.CRAFTING, input, level)
+
+    if (recipe.isPresent) fail("Expected no recipe to match $items")
+}
+
+/**
+ * Attempt to craft an item.
+ */
+fun GameTestHelper.craftItem(vararg items: ItemStack): ItemStack {
+    val container = NonNullList.withSize(3 * 3, ItemStack.EMPTY)
+    for ((i, item) in items.withIndex()) container[i] = item
+    val input = CraftingInput.of(3, 3, container)
+
+    val recipe = level.server.recipeManager
+        .getRecipeFor(RecipeType.CRAFTING, input, level)
+        .orElseThrow { GameTestAssertException("No recipe matches $items") }
+
+    return recipe.value.assemble(input, level.registryAccess())
+}
+
 /**
  * Run a function multiple times until it succeeds.
  */

projects/common/src/testMod/kotlin/dan200/computercraft/gametest/core/TestHooks.kt

@@ -22,6 +22,7 @@ import net.minecraft.world.level.LevelAccessor
 import net.minecraft.world.level.block.Blocks
 import net.minecraft.world.level.block.entity.StructureBlockEntity
 import net.minecraft.world.level.block.state.BlockState
+import net.minecraft.world.level.levelgen.structure.templatesystem.StructureTemplateManager
 import net.minecraft.world.phys.Vec3
 import org.slf4j.Logger
 import org.slf4j.LoggerFactory
@@ -43,6 +44,9 @@ object TestHooks {
     @JvmStatic
     val sourceDir: Path = Paths.get(System.getProperty("cctest.sources")).normalize().toAbsolutePath()
 
+    @JvmStatic
+    var structureManager: StructureTemplateManager? = null
+
     @JvmStatic
     fun init() {
         ServerContext.luaMachine = ManagedComputers
@@ -84,6 +88,8 @@ object TestHooks {
             StructureUtils.clearSpaceForStructure(StructureUtils.getStructureBoundingBox(structure), level)
         }
 
+        structureManager = server.structureManager
+
         ManagedComputers.reset()
 
         // Delete server context and add one with a mutable machine factory. This allows us to set the factory for

projects/common/src/testMod/resources/computercraft-gametest.mixins.json

@@ -12,6 +12,8 @@
         "GameTestSequenceAccessor",
         "GameTestSequenceMixin",
         "GameTestServerMixin",
+        "NbtUtilsMixin",
+        "StructureTemplateAccessor",
         "StructureTemplateManagerMixin",
         "TestCommandAccessor"
     ],

projects/common/src/testMod/resources/data/cctest/structures/computer_test.chest_resizes_on_change.snbt

@@ -27,111 +27,12 @@
         {pos: [4, 0, 2], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 3], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 4], state: "minecraft:polished_andesite"},
-        {pos: [0, 1, 0], state: "minecraft:air"},
-        {pos: [0, 1, 1], state: "minecraft:air"},
-        {pos: [0, 1, 2], state: "minecraft:air"},
-        {pos: [0, 1, 3], state: "minecraft:air"},
-        {pos: [0, 1, 4], state: "minecraft:air"},
-        {pos: [1, 1, 0], state: "minecraft:air"},
-        {pos: [1, 1, 1], state: "minecraft:air"},
-        {pos: [1, 1, 2], state: "minecraft:air"},
-        {pos: [1, 1, 3], state: "minecraft:air"},
-        {pos: [1, 1, 4], state: "minecraft:air"},
-        {pos: [2, 1, 0], state: "minecraft:air"},
-        {pos: [2, 1, 1], state: "minecraft:air"},
         {pos: [2, 1, 2], state: "minecraft:chest{facing:north,type:single,waterlogged:false}", nbt: {Items: [], id: "minecraft:chest"}},
-        {pos: [2, 1, 3], state: "minecraft:air"},
-        {pos: [2, 1, 4], state: "minecraft:air"},
-        {pos: [3, 1, 0], state: "minecraft:air"},
-        {pos: [3, 1, 1], state: "minecraft:air"},
-        {pos: [3, 1, 2], state: "computercraft:computer_normal{facing:north,state:on}", nbt: {ComputerId: 1, Label: "computer_test.chest_resizes_on_change", On: 1b, id: "computercraft:computer_normal"}},
-        {pos: [3, 1, 3], state: "minecraft:air"},
-        {pos: [3, 1, 4], state: "minecraft:air"},
-        {pos: [4, 1, 0], state: "minecraft:air"},
-        {pos: [4, 1, 1], state: "minecraft:air"},
-        {pos: [4, 1, 2], state: "minecraft:air"},
-        {pos: [4, 1, 3], state: "minecraft:air"},
-        {pos: [4, 1, 4], state: "minecraft:air"},
-        {pos: [0, 2, 0], state: "minecraft:air"},
-        {pos: [0, 2, 1], state: "minecraft:air"},
-        {pos: [0, 2, 2], state: "minecraft:air"},
-        {pos: [0, 2, 3], state: "minecraft:air"},
-        {pos: [0, 2, 4], state: "minecraft:air"},
-        {pos: [1, 2, 0], state: "minecraft:air"},
-        {pos: [1, 2, 1], state: "minecraft:air"},
-        {pos: [1, 2, 2], state: "minecraft:air"},
-        {pos: [1, 2, 3], state: "minecraft:air"},
-        {pos: [1, 2, 4], state: "minecraft:air"},
-        {pos: [2, 2, 0], state: "minecraft:air"},
-        {pos: [2, 2, 1], state: "minecraft:air"},
-        {pos: [2, 2, 2], state: "minecraft:air"},
-        {pos: [2, 2, 3], state: "minecraft:air"},
-        {pos: [2, 2, 4], state: "minecraft:air"},
-        {pos: [3, 2, 0], state: "minecraft:air"},
-        {pos: [3, 2, 1], state: "minecraft:air"},
-        {pos: [3, 2, 2], state: "minecraft:air"},
-        {pos: [3, 2, 3], state: "minecraft:air"},
-        {pos: [3, 2, 4], state: "minecraft:air"},
-        {pos: [4, 2, 0], state: "minecraft:air"},
-        {pos: [4, 2, 1], state: "minecraft:air"},
-        {pos: [4, 2, 2], state: "minecraft:air"},
-        {pos: [4, 2, 3], state: "minecraft:air"},
-        {pos: [4, 2, 4], state: "minecraft:air"},
-        {pos: [0, 3, 0], state: "minecraft:air"},
-        {pos: [0, 3, 1], state: "minecraft:air"},
-        {pos: [0, 3, 2], state: "minecraft:air"},
-        {pos: [0, 3, 3], state: "minecraft:air"},
-        {pos: [0, 3, 4], state: "minecraft:air"},
-        {pos: [1, 3, 0], state: "minecraft:air"},
-        {pos: [1, 3, 1], state: "minecraft:air"},
-        {pos: [1, 3, 2], state: "minecraft:air"},
-        {pos: [1, 3, 3], state: "minecraft:air"},
-        {pos: [1, 3, 4], state: "minecraft:air"},
-        {pos: [2, 3, 0], state: "minecraft:air"},
-        {pos: [2, 3, 1], state: "minecraft:air"},
-        {pos: [2, 3, 2], state: "minecraft:air"},
-        {pos: [2, 3, 3], state: "minecraft:air"},
-        {pos: [2, 3, 4], state: "minecraft:air"},
-        {pos: [3, 3, 0], state: "minecraft:air"},
-        {pos: [3, 3, 1], state: "minecraft:air"},
-        {pos: [3, 3, 2], state: "minecraft:air"},
-        {pos: [3, 3, 3], state: "minecraft:air"},
-        {pos: [3, 3, 4], state: "minecraft:air"},
-        {pos: [4, 3, 0], state: "minecraft:air"},
-        {pos: [4, 3, 1], state: "minecraft:air"},
-        {pos: [4, 3, 2], state: "minecraft:air"},
-        {pos: [4, 3, 3], state: "minecraft:air"},
-        {pos: [4, 3, 4], state: "minecraft:air"},
-        {pos: [0, 4, 0], state: "minecraft:air"},
-        {pos: [0, 4, 1], state: "minecraft:air"},
-        {pos: [0, 4, 2], state: "minecraft:air"},
-        {pos: [0, 4, 3], state: "minecraft:air"},
-        {pos: [0, 4, 4], state: "minecraft:air"},
-        {pos: [1, 4, 0], state: "minecraft:air"},
-        {pos: [1, 4, 1], state: "minecraft:air"},
-        {pos: [1, 4, 2], state: "minecraft:air"},
-        {pos: [1, 4, 3], state: "minecraft:air"},
-        {pos: [1, 4, 4], state: "minecraft:air"},
-        {pos: [2, 4, 0], state: "minecraft:air"},
-        {pos: [2, 4, 1], state: "minecraft:air"},
-        {pos: [2, 4, 2], state: "minecraft:air"},
-        {pos: [2, 4, 3], state: "minecraft:air"},
-        {pos: [2, 4, 4], state: "minecraft:air"},
-        {pos: [3, 4, 0], state: "minecraft:air"},
-        {pos: [3, 4, 1], state: "minecraft:air"},
-        {pos: [3, 4, 2], state: "minecraft:air"},
-        {pos: [3, 4, 3], state: "minecraft:air"},
-        {pos: [3, 4, 4], state: "minecraft:air"},
-        {pos: [4, 4, 0], state: "minecraft:air"},
-        {pos: [4, 4, 1], state: "minecraft:air"},
-        {pos: [4, 4, 2], state: "minecraft:air"},
-        {pos: [4, 4, 3], state: "minecraft:air"},
-        {pos: [4, 4, 4], state: "minecraft:air"}
+        {pos: [3, 1, 2], state: "computercraft:computer_normal{facing:north,state:on}", nbt: {ComputerId: 1, Label: "computer_test.chest_resizes_on_change", On: 1b, id: "computercraft:computer_normal"}}
     ],
     entities: [],
     palette: [
         "minecraft:polished_andesite",
-        "minecraft:air",
         "minecraft:chest{facing:north,type:single,waterlogged:false}",
         "computercraft:computer_normal{facing:north,state:on}"
     ]

projects/common/src/testMod/resources/data/cctest/structures/computer_test.drops_on_explosion.snbt

@@ -33,19 +33,11 @@
         {pos: [0, 1, 3], state: "minecraft:barrier"},
         {pos: [0, 1, 4], state: "minecraft:barrier"},
         {pos: [1, 1, 0], state: "minecraft:barrier"},
-        {pos: [1, 1, 1], state: "minecraft:air"},
-        {pos: [1, 1, 2], state: "minecraft:air"},
-        {pos: [1, 1, 3], state: "minecraft:air"},
         {pos: [1, 1, 4], state: "minecraft:barrier"},
         {pos: [2, 1, 0], state: "minecraft:barrier"},
-        {pos: [2, 1, 1], state: "minecraft:air"},
         {pos: [2, 1, 2], state: "computercraft:computer_normal{facing:east,state:off}", nbt: {On: 0b, id: "computercraft:computer_normal"}},
-        {pos: [2, 1, 3], state: "minecraft:air"},
         {pos: [2, 1, 4], state: "minecraft:barrier"},
         {pos: [3, 1, 0], state: "minecraft:barrier"},
-        {pos: [3, 1, 1], state: "minecraft:air"},
-        {pos: [3, 1, 2], state: "minecraft:air"},
-        {pos: [3, 1, 3], state: "minecraft:air"},
         {pos: [3, 1, 4], state: "minecraft:barrier"},
         {pos: [4, 1, 0], state: "minecraft:barrier"},
         {pos: [4, 1, 1], state: "minecraft:barrier"},
@@ -54,85 +46,24 @@
         {pos: [4, 1, 4], state: "minecraft:barrier"},
         {pos: [0, 2, 0], state: "minecraft:barrier"},
         {pos: [0, 2, 1], state: "minecraft:barrier"},
-        {pos: [0, 2, 2], state: "minecraft:air"},
         {pos: [0, 2, 3], state: "minecraft:barrier"},
         {pos: [0, 2, 4], state: "minecraft:barrier"},
         {pos: [1, 2, 0], state: "minecraft:barrier"},
-        {pos: [1, 2, 1], state: "minecraft:air"},
-        {pos: [1, 2, 2], state: "minecraft:air"},
-        {pos: [1, 2, 3], state: "minecraft:air"},
         {pos: [1, 2, 4], state: "minecraft:barrier"},
         {pos: [2, 2, 0], state: "minecraft:barrier"},
-        {pos: [2, 2, 1], state: "minecraft:air"},
-        {pos: [2, 2, 2], state: "minecraft:air"},
-        {pos: [2, 2, 3], state: "minecraft:air"},
         {pos: [2, 2, 4], state: "minecraft:barrier"},
         {pos: [3, 2, 0], state: "minecraft:barrier"},
-        {pos: [3, 2, 1], state: "minecraft:air"},
-        {pos: [3, 2, 2], state: "minecraft:air"},
-        {pos: [3, 2, 3], state: "minecraft:air"},
         {pos: [3, 2, 4], state: "minecraft:barrier"},
         {pos: [4, 2, 0], state: "minecraft:barrier"},
         {pos: [4, 2, 1], state: "minecraft:barrier"},
         {pos: [4, 2, 2], state: "minecraft:barrier"},
         {pos: [4, 2, 3], state: "minecraft:barrier"},
-        {pos: [4, 2, 4], state: "minecraft:barrier"},
-        {pos: [0, 3, 0], state: "minecraft:air"},
-        {pos: [0, 3, 1], state: "minecraft:air"},
-        {pos: [0, 3, 2], state: "minecraft:air"},
-        {pos: [0, 3, 3], state: "minecraft:air"},
-        {pos: [0, 3, 4], state: "minecraft:air"},
-        {pos: [1, 3, 0], state: "minecraft:air"},
-        {pos: [1, 3, 1], state: "minecraft:air"},
-        {pos: [1, 3, 2], state: "minecraft:air"},
-        {pos: [1, 3, 3], state: "minecraft:air"},
-        {pos: [1, 3, 4], state: "minecraft:air"},
-        {pos: [2, 3, 0], state: "minecraft:air"},
-        {pos: [2, 3, 1], state: "minecraft:air"},
-        {pos: [2, 3, 2], state: "minecraft:air"},
-        {pos: [2, 3, 3], state: "minecraft:air"},
-        {pos: [2, 3, 4], state: "minecraft:air"},
-        {pos: [3, 3, 0], state: "minecraft:air"},
-        {pos: [3, 3, 1], state: "minecraft:air"},
-        {pos: [3, 3, 2], state: "minecraft:air"},
-        {pos: [3, 3, 3], state: "minecraft:air"},
-        {pos: [3, 3, 4], state: "minecraft:air"},
-        {pos: [4, 3, 0], state: "minecraft:air"},
-        {pos: [4, 3, 1], state: "minecraft:air"},
-        {pos: [4, 3, 2], state: "minecraft:air"},
-        {pos: [4, 3, 3], state: "minecraft:air"},
-        {pos: [4, 3, 4], state: "minecraft:air"},
-        {pos: [0, 4, 0], state: "minecraft:air"},
-        {pos: [0, 4, 1], state: "minecraft:air"},
-        {pos: [0, 4, 2], state: "minecraft:air"},
-        {pos: [0, 4, 3], state: "minecraft:air"},
-        {pos: [0, 4, 4], state: "minecraft:air"},
-        {pos: [1, 4, 0], state: "minecraft:air"},
-        {pos: [1, 4, 1], state: "minecraft:air"},
-        {pos: [1, 4, 2], state: "minecraft:air"},
-        {pos: [1, 4, 3], state: "minecraft:air"},
-        {pos: [1, 4, 4], state: "minecraft:air"},
-        {pos: [2, 4, 0], state: "minecraft:air"},
-        {pos: [2, 4, 1], state: "minecraft:air"},
-        {pos: [2, 4, 2], state: "minecraft:air"},
-        {pos: [2, 4, 3], state: "minecraft:air"},
-        {pos: [2, 4, 4], state: "minecraft:air"},
-        {pos: [3, 4, 0], state: "minecraft:air"},
-        {pos: [3, 4, 1], state: "minecraft:air"},
-        {pos: [3, 4, 2], state: "minecraft:air"},
-        {pos: [3, 4, 3], state: "minecraft:air"},
-        {pos: [3, 4, 4], state: "minecraft:air"},
-        {pos: [4, 4, 0], state: "minecraft:air"},
-        {pos: [4, 4, 1], state: "minecraft:air"},
-        {pos: [4, 4, 2], state: "minecraft:air"},
-        {pos: [4, 4, 3], state: "minecraft:air"},
-        {pos: [4, 4, 4], state: "minecraft:air"}
+        {pos: [4, 2, 4], state: "minecraft:barrier"}
     ],
     entities: [],
     palette: [
         "minecraft:obsidian",
         "minecraft:barrier",
-        "minecraft:air",
         "computercraft:computer_normal{facing:east,state:off}"
     ]
 }

projects/common/src/testMod/resources/data/cctest/structures/computer_test.no_through_signal.snbt

@@ -27,115 +27,19 @@
         {pos: [4, 0, 2], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 3], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 4], state: "minecraft:polished_andesite"},
-        {pos: [0, 1, 0], state: "minecraft:air"},
-        {pos: [0, 1, 1], state: "minecraft:air"},
-        {pos: [0, 1, 2], state: "minecraft:air"},
-        {pos: [0, 1, 3], state: "minecraft:air"},
-        {pos: [0, 1, 4], state: "minecraft:air"},
-        {pos: [1, 1, 0], state: "minecraft:air"},
-        {pos: [1, 1, 1], state: "minecraft:air"},
-        {pos: [1, 1, 2], state: "minecraft:air"},
-        {pos: [1, 1, 3], state: "minecraft:air"},
-        {pos: [1, 1, 4], state: "minecraft:air"},
         {pos: [2, 1, 0], state: "minecraft:lever{face:floor,facing:south,powered:false}"},
         {pos: [2, 1, 1], state: "minecraft:repeater{delay:1,facing:north,locked:false,powered:false}"},
         {pos: [2, 1, 2], state: "computercraft:computer_advanced{facing:north,state:blinking}", nbt: {ComputerId: 0, Label: "computer_test.no_through_signal", On: 1b, id: "computercraft:computer_advanced"}},
         {pos: [2, 1, 3], state: "minecraft:redstone_wire{east:none,north:side,power:0,south:none,west:none}"},
-        {pos: [2, 1, 4], state: "minecraft:redstone_lamp{lit:false}"},
-        {pos: [3, 1, 0], state: "minecraft:air"},
-        {pos: [3, 1, 1], state: "minecraft:air"},
-        {pos: [3, 1, 2], state: "minecraft:air"},
-        {pos: [3, 1, 3], state: "minecraft:air"},
-        {pos: [3, 1, 4], state: "minecraft:air"},
-        {pos: [4, 1, 0], state: "minecraft:air"},
-        {pos: [4, 1, 1], state: "minecraft:air"},
-        {pos: [4, 1, 2], state: "minecraft:air"},
-        {pos: [4, 1, 3], state: "minecraft:air"},
-        {pos: [4, 1, 4], state: "minecraft:air"},
-        {pos: [0, 2, 0], state: "minecraft:air"},
-        {pos: [0, 2, 1], state: "minecraft:air"},
-        {pos: [0, 2, 2], state: "minecraft:air"},
-        {pos: [0, 2, 3], state: "minecraft:air"},
-        {pos: [0, 2, 4], state: "minecraft:air"},
-        {pos: [1, 2, 0], state: "minecraft:air"},
-        {pos: [1, 2, 1], state: "minecraft:air"},
-        {pos: [1, 2, 2], state: "minecraft:air"},
-        {pos: [1, 2, 3], state: "minecraft:air"},
-        {pos: [1, 2, 4], state: "minecraft:air"},
-        {pos: [2, 2, 0], state: "minecraft:air"},
-        {pos: [2, 2, 1], state: "minecraft:air"},
-        {pos: [2, 2, 2], state: "minecraft:air"},
-        {pos: [2, 2, 3], state: "minecraft:air"},
-        {pos: [2, 2, 4], state: "minecraft:air"},
-        {pos: [3, 2, 0], state: "minecraft:air"},
-        {pos: [3, 2, 1], state: "minecraft:air"},
-        {pos: [3, 2, 2], state: "minecraft:air"},
-        {pos: [3, 2, 3], state: "minecraft:air"},
-        {pos: [3, 2, 4], state: "minecraft:air"},
-        {pos: [4, 2, 0], state: "minecraft:air"},
-        {pos: [4, 2, 1], state: "minecraft:air"},
-        {pos: [4, 2, 2], state: "minecraft:air"},
-        {pos: [4, 2, 3], state: "minecraft:air"},
-        {pos: [4, 2, 4], state: "minecraft:air"},
-        {pos: [0, 3, 0], state: "minecraft:air"},
-        {pos: [0, 3, 1], state: "minecraft:air"},
-        {pos: [0, 3, 2], state: "minecraft:air"},
-        {pos: [0, 3, 3], state: "minecraft:air"},
-        {pos: [0, 3, 4], state: "minecraft:air"},
-        {pos: [1, 3, 0], state: "minecraft:air"},
-        {pos: [1, 3, 1], state: "minecraft:air"},
-        {pos: [1, 3, 2], state: "minecraft:air"},
-        {pos: [1, 3, 3], state: "minecraft:air"},
-        {pos: [1, 3, 4], state: "minecraft:air"},
-        {pos: [2, 3, 0], state: "minecraft:air"},
-        {pos: [2, 3, 1], state: "minecraft:air"},
-        {pos: [2, 3, 2], state: "minecraft:air"},
-        {pos: [2, 3, 3], state: "minecraft:air"},
-        {pos: [2, 3, 4], state: "minecraft:air"},
-        {pos: [3, 3, 0], state: "minecraft:air"},
-        {pos: [3, 3, 1], state: "minecraft:air"},
-        {pos: [3, 3, 2], state: "minecraft:air"},
-        {pos: [3, 3, 3], state: "minecraft:air"},
-        {pos: [3, 3, 4], state: "minecraft:air"},
-        {pos: [4, 3, 0], state: "minecraft:air"},
-        {pos: [4, 3, 1], state: "minecraft:air"},
-        {pos: [4, 3, 2], state: "minecraft:air"},
-        {pos: [4, 3, 3], state: "minecraft:air"},
-        {pos: [4, 3, 4], state: "minecraft:air"},
-        {pos: [0, 4, 0], state: "minecraft:air"},
-        {pos: [0, 4, 1], state: "minecraft:air"},
-        {pos: [0, 4, 2], state: "minecraft:air"},
-        {pos: [0, 4, 3], state: "minecraft:air"},
-        {pos: [0, 4, 4], state: "minecraft:air"},
-        {pos: [1, 4, 0], state: "minecraft:air"},
-        {pos: [1, 4, 1], state: "minecraft:air"},
-        {pos: [1, 4, 2], state: "minecraft:air"},
-        {pos: [1, 4, 3], state: "minecraft:air"},
-        {pos: [1, 4, 4], state: "minecraft:air"},
-        {pos: [2, 4, 0], state: "minecraft:air"},
-        {pos: [2, 4, 1], state: "minecraft:air"},
-        {pos: [2, 4, 2], state: "minecraft:air"},
-        {pos: [2, 4, 3], state: "minecraft:air"},
-        {pos: [2, 4, 4], state: "minecraft:air"},
-        {pos: [3, 4, 0], state: "minecraft:air"},
-        {pos: [3, 4, 1], state: "minecraft:air"},
-        {pos: [3, 4, 2], state: "minecraft:air"},
-        {pos: [3, 4, 3], state: "minecraft:air"},
-        {pos: [3, 4, 4], state: "minecraft:air"},
-        {pos: [4, 4, 0], state: "minecraft:air"},
-        {pos: [4, 4, 1], state: "minecraft:air"},
-        {pos: [4, 4, 2], state: "minecraft:air"},
-        {pos: [4, 4, 3], state: "minecraft:air"},
-        {pos: [4, 4, 4], state: "minecraft:air"}
+        {pos: [2, 1, 4], state: "minecraft:redstone_lamp{lit:false}"}
     ],
     entities: [],
     palette: [
         "minecraft:polished_andesite",
         "minecraft:redstone_lamp{lit:false}",
-        "computercraft:computer_advanced{facing:north,state:blinking}",
-        "minecraft:air",
         "minecraft:lever{face:floor,facing:south,powered:false}",
         "minecraft:repeater{delay:1,facing:north,locked:false,powered:false}",
-        "minecraft:redstone_wire{east:none,north:side,power:0,south:none,west:none}"
+        "minecraft:redstone_wire{east:none,north:side,power:0,south:none,west:none}",
+        "computercraft:computer_advanced{facing:north,state:blinking}"
     ]
 }

projects/common/src/testMod/resources/data/cctest/structures/computer_test.no_through_signal_reverse.snbt

@@ -27,112 +27,16 @@
         {pos: [4, 0, 2], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 3], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 4], state: "minecraft:polished_andesite"},
-        {pos: [0, 1, 0], state: "minecraft:air"},
-        {pos: [0, 1, 1], state: "minecraft:air"},
-        {pos: [0, 1, 2], state: "minecraft:air"},
-        {pos: [0, 1, 3], state: "minecraft:air"},
-        {pos: [0, 1, 4], state: "minecraft:air"},
-        {pos: [1, 1, 0], state: "minecraft:air"},
-        {pos: [1, 1, 1], state: "minecraft:air"},
-        {pos: [1, 1, 2], state: "minecraft:air"},
-        {pos: [1, 1, 3], state: "minecraft:air"},
-        {pos: [1, 1, 4], state: "minecraft:air"},
         {pos: [2, 1, 0], state: "minecraft:lever{face:floor,facing:south,powered:false}"},
         {pos: [2, 1, 1], state: "minecraft:repeater{delay:1,facing:north,locked:false,powered:false}"},
         {pos: [2, 1, 2], state: "computercraft:computer_advanced{facing:north,state:off}", nbt: {ComputerId: 0, Label: "computer_test.no_through_signal_rev", On: 0b, id: "computercraft:computer_advanced"}},
         {pos: [2, 1, 3], state: "minecraft:redstone_wire{east:none,north:side,power:0,south:side,west:none}"},
-        {pos: [2, 1, 4], state: "minecraft:redstone_lamp{lit:false}"},
-        {pos: [3, 1, 0], state: "minecraft:air"},
-        {pos: [3, 1, 1], state: "minecraft:air"},
-        {pos: [3, 1, 2], state: "minecraft:air"},
-        {pos: [3, 1, 3], state: "minecraft:air"},
-        {pos: [3, 1, 4], state: "minecraft:air"},
-        {pos: [4, 1, 0], state: "minecraft:air"},
-        {pos: [4, 1, 1], state: "minecraft:air"},
-        {pos: [4, 1, 2], state: "minecraft:air"},
-        {pos: [4, 1, 3], state: "minecraft:air"},
-        {pos: [4, 1, 4], state: "minecraft:air"},
-        {pos: [0, 2, 0], state: "minecraft:air"},
-        {pos: [0, 2, 1], state: "minecraft:air"},
-        {pos: [0, 2, 2], state: "minecraft:air"},
-        {pos: [0, 2, 3], state: "minecraft:air"},
-        {pos: [0, 2, 4], state: "minecraft:air"},
-        {pos: [1, 2, 0], state: "minecraft:air"},
-        {pos: [1, 2, 1], state: "minecraft:air"},
-        {pos: [1, 2, 2], state: "minecraft:air"},
-        {pos: [1, 2, 3], state: "minecraft:air"},
-        {pos: [1, 2, 4], state: "minecraft:air"},
-        {pos: [2, 2, 0], state: "minecraft:air"},
-        {pos: [2, 2, 1], state: "minecraft:air"},
-        {pos: [2, 2, 2], state: "minecraft:air"},
-        {pos: [2, 2, 3], state: "minecraft:air"},
-        {pos: [2, 2, 4], state: "minecraft:air"},
-        {pos: [3, 2, 0], state: "minecraft:air"},
-        {pos: [3, 2, 1], state: "minecraft:air"},
-        {pos: [3, 2, 2], state: "minecraft:air"},
-        {pos: [3, 2, 3], state: "minecraft:air"},
-        {pos: [3, 2, 4], state: "minecraft:air"},
-        {pos: [4, 2, 0], state: "minecraft:air"},
-        {pos: [4, 2, 1], state: "minecraft:air"},
-        {pos: [4, 2, 2], state: "minecraft:air"},
-        {pos: [4, 2, 3], state: "minecraft:air"},
-        {pos: [4, 2, 4], state: "minecraft:air"},
-        {pos: [0, 3, 0], state: "minecraft:air"},
-        {pos: [0, 3, 1], state: "minecraft:air"},
-        {pos: [0, 3, 2], state: "minecraft:air"},
-        {pos: [0, 3, 3], state: "minecraft:air"},
-        {pos: [0, 3, 4], state: "minecraft:air"},
-        {pos: [1, 3, 0], state: "minecraft:air"},
-        {pos: [1, 3, 1], state: "minecraft:air"},
-        {pos: [1, 3, 2], state: "minecraft:air"},
-        {pos: [1, 3, 3], state: "minecraft:air"},
-        {pos: [1, 3, 4], state: "minecraft:air"},
-        {pos: [2, 3, 0], state: "minecraft:air"},
-        {pos: [2, 3, 1], state: "minecraft:air"},
-        {pos: [2, 3, 2], state: "minecraft:air"},
-        {pos: [2, 3, 3], state: "minecraft:air"},
-        {pos: [2, 3, 4], state: "minecraft:air"},
-        {pos: [3, 3, 0], state: "minecraft:air"},
-        {pos: [3, 3, 1], state: "minecraft:air"},
-        {pos: [3, 3, 2], state: "minecraft:air"},
-        {pos: [3, 3, 3], state: "minecraft:air"},
-        {pos: [3, 3, 4], state: "minecraft:air"},
-        {pos: [4, 3, 0], state: "minecraft:air"},
-        {pos: [4, 3, 1], state: "minecraft:air"},
-        {pos: [4, 3, 2], state: "minecraft:air"},
-        {pos: [4, 3, 3], state: "minecraft:air"},
-        {pos: [4, 3, 4], state: "minecraft:air"},
-        {pos: [0, 4, 0], state: "minecraft:air"},
-        {pos: [0, 4, 1], state: "minecraft:air"},
-        {pos: [0, 4, 2], state: "minecraft:air"},
-        {pos: [0, 4, 3], state: "minecraft:air"},
-        {pos: [0, 4, 4], state: "minecraft:air"},
-        {pos: [1, 4, 0], state: "minecraft:air"},
-        {pos: [1, 4, 1], state: "minecraft:air"},
-        {pos: [1, 4, 2], state: "minecraft:air"},
-        {pos: [1, 4, 3], state: "minecraft:air"},
-        {pos: [1, 4, 4], state: "minecraft:air"},
-        {pos: [2, 4, 0], state: "minecraft:air"},
-        {pos: [2, 4, 1], state: "minecraft:air"},
-        {pos: [2, 4, 2], state: "minecraft:air"},
-        {pos: [2, 4, 3], state: "minecraft:air"},
-        {pos: [2, 4, 4], state: "minecraft:air"},
-        {pos: [3, 4, 0], state: "minecraft:air"},
-        {pos: [3, 4, 1], state: "minecraft:air"},
-        {pos: [3, 4, 2], state: "minecraft:air"},
-        {pos: [3, 4, 3], state: "minecraft:air"},
-        {pos: [3, 4, 4], state: "minecraft:air"},
-        {pos: [4, 4, 0], state: "minecraft:air"},
-        {pos: [4, 4, 1], state: "minecraft:air"},
-        {pos: [4, 4, 2], state: "minecraft:air"},
-        {pos: [4, 4, 3], state: "minecraft:air"},
-        {pos: [4, 4, 4], state: "minecraft:air"}
+        {pos: [2, 1, 4], state: "minecraft:redstone_lamp{lit:false}"}
     ],
     entities: [],
     palette: [
         "minecraft:polished_andesite",
         "minecraft:redstone_lamp{lit:false}",
-        "minecraft:air",
         "minecraft:lever{face:floor,facing:south,powered:false}",
         "minecraft:repeater{delay:1,facing:north,locked:false,powered:false}",
         "minecraft:redstone_wire{east:none,north:side,power:0,south:side,west:none}",

projects/common/src/testMod/resources/data/cctest/structures/computer_test.open_on_client.snbt

@@ -27,111 +27,11 @@
         {pos: [4, 0, 2], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 3], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 4], state: "minecraft:polished_andesite"},
-        {pos: [0, 1, 0], state: "minecraft:air"},
-        {pos: [0, 1, 1], state: "minecraft:air"},
-        {pos: [0, 1, 2], state: "minecraft:air"},
-        {pos: [0, 1, 3], state: "minecraft:air"},
-        {pos: [0, 1, 4], state: "minecraft:air"},
-        {pos: [1, 1, 0], state: "minecraft:air"},
-        {pos: [1, 1, 1], state: "minecraft:air"},
-        {pos: [1, 1, 2], state: "minecraft:air"},
-        {pos: [1, 1, 3], state: "minecraft:air"},
-        {pos: [1, 1, 4], state: "minecraft:air"},
-        {pos: [2, 1, 0], state: "minecraft:air"},
-        {pos: [2, 1, 1], state: "minecraft:air"},
-        {pos: [2, 1, 2], state: "computercraft:computer_advanced{facing:north,state:on}", nbt: {ComputerId: 1, Label: "computer_test.open_on_client", On: 1b, id: "computercraft:computer_advanced"}},
-        {pos: [2, 1, 3], state: "minecraft:air"},
-        {pos: [2, 1, 4], state: "minecraft:air"},
-        {pos: [3, 1, 0], state: "minecraft:air"},
-        {pos: [3, 1, 1], state: "minecraft:air"},
-        {pos: [3, 1, 2], state: "minecraft:air"},
-        {pos: [3, 1, 3], state: "minecraft:air"},
-        {pos: [3, 1, 4], state: "minecraft:air"},
-        {pos: [4, 1, 0], state: "minecraft:air"},
-        {pos: [4, 1, 1], state: "minecraft:air"},
-        {pos: [4, 1, 2], state: "minecraft:air"},
-        {pos: [4, 1, 3], state: "minecraft:air"},
-        {pos: [4, 1, 4], state: "minecraft:air"},
-        {pos: [0, 2, 0], state: "minecraft:air"},
-        {pos: [0, 2, 1], state: "minecraft:air"},
-        {pos: [0, 2, 2], state: "minecraft:air"},
-        {pos: [0, 2, 3], state: "minecraft:air"},
-        {pos: [0, 2, 4], state: "minecraft:air"},
-        {pos: [1, 2, 0], state: "minecraft:air"},
-        {pos: [1, 2, 1], state: "minecraft:air"},
-        {pos: [1, 2, 2], state: "minecraft:air"},
-        {pos: [1, 2, 3], state: "minecraft:air"},
-        {pos: [1, 2, 4], state: "minecraft:air"},
-        {pos: [2, 2, 0], state: "minecraft:air"},
-        {pos: [2, 2, 1], state: "minecraft:air"},
-        {pos: [2, 2, 2], state: "minecraft:air"},
-        {pos: [2, 2, 3], state: "minecraft:air"},
-        {pos: [2, 2, 4], state: "minecraft:air"},
-        {pos: [3, 2, 0], state: "minecraft:air"},
-        {pos: [3, 2, 1], state: "minecraft:air"},
-        {pos: [3, 2, 2], state: "minecraft:air"},
-        {pos: [3, 2, 3], state: "minecraft:air"},
-        {pos: [3, 2, 4], state: "minecraft:air"},
-        {pos: [4, 2, 0], state: "minecraft:air"},
-        {pos: [4, 2, 1], state: "minecraft:air"},
-        {pos: [4, 2, 2], state: "minecraft:air"},
-        {pos: [4, 2, 3], state: "minecraft:air"},
-        {pos: [4, 2, 4], state: "minecraft:air"},
-        {pos: [0, 3, 0], state: "minecraft:air"},
-        {pos: [0, 3, 1], state: "minecraft:air"},
-        {pos: [0, 3, 2], state: "minecraft:air"},
-        {pos: [0, 3, 3], state: "minecraft:air"},
-        {pos: [0, 3, 4], state: "minecraft:air"},
-        {pos: [1, 3, 0], state: "minecraft:air"},
-        {pos: [1, 3, 1], state: "minecraft:air"},
-        {pos: [1, 3, 2], state: "minecraft:air"},
-        {pos: [1, 3, 3], state: "minecraft:air"},
-        {pos: [1, 3, 4], state: "minecraft:air"},
-        {pos: [2, 3, 0], state: "minecraft:air"},
-        {pos: [2, 3, 1], state: "minecraft:air"},
-        {pos: [2, 3, 2], state: "minecraft:air"},
-        {pos: [2, 3, 3], state: "minecraft:air"},
-        {pos: [2, 3, 4], state: "minecraft:air"},
-        {pos: [3, 3, 0], state: "minecraft:air"},
-        {pos: [3, 3, 1], state: "minecraft:air"},
-        {pos: [3, 3, 2], state: "minecraft:air"},
-        {pos: [3, 3, 3], state: "minecraft:air"},
-        {pos: [3, 3, 4], state: "minecraft:air"},
-        {pos: [4, 3, 0], state: "minecraft:air"},
-        {pos: [4, 3, 1], state: "minecraft:air"},
-        {pos: [4, 3, 2], state: "minecraft:air"},
-        {pos: [4, 3, 3], state: "minecraft:air"},
-        {pos: [4, 3, 4], state: "minecraft:air"},
-        {pos: [0, 4, 0], state: "minecraft:air"},
-        {pos: [0, 4, 1], state: "minecraft:air"},
-        {pos: [0, 4, 2], state: "minecraft:air"},
-        {pos: [0, 4, 3], state: "minecraft:air"},
-        {pos: [0, 4, 4], state: "minecraft:air"},
-        {pos: [1, 4, 0], state: "minecraft:air"},
-        {pos: [1, 4, 1], state: "minecraft:air"},
-        {pos: [1, 4, 2], state: "minecraft:air"},
-        {pos: [1, 4, 3], state: "minecraft:air"},
-        {pos: [1, 4, 4], state: "minecraft:air"},
-        {pos: [2, 4, 0], state: "minecraft:air"},
-        {pos: [2, 4, 1], state: "minecraft:air"},
-        {pos: [2, 4, 2], state: "minecraft:air"},
-        {pos: [2, 4, 3], state: "minecraft:air"},
-        {pos: [2, 4, 4], state: "minecraft:air"},
-        {pos: [3, 4, 0], state: "minecraft:air"},
-        {pos: [3, 4, 1], state: "minecraft:air"},
-        {pos: [3, 4, 2], state: "minecraft:air"},
-        {pos: [3, 4, 3], state: "minecraft:air"},
-        {pos: [3, 4, 4], state: "minecraft:air"},
-        {pos: [4, 4, 0], state: "minecraft:air"},
-        {pos: [4, 4, 1], state: "minecraft:air"},
-        {pos: [4, 4, 2], state: "minecraft:air"},
-        {pos: [4, 4, 3], state: "minecraft:air"},
-        {pos: [4, 4, 4], state: "minecraft:air"}
+        {pos: [2, 1, 2], state: "computercraft:computer_advanced{facing:north,state:on}", nbt: {ComputerId: 1, Label: "computer_test.open_on_client", On: 1b, id: "computercraft:computer_advanced"}}
     ],
     entities: [],
     palette: [
         "minecraft:polished_andesite",
-        "minecraft:air",
         "computercraft:computer_advanced{facing:north,state:on}"
     ]
 }

projects/common/src/testMod/resources/data/cctest/structures/computer_test.self_output_update.snbt

@@ -27,111 +27,12 @@
         {pos: [4, 0, 2], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 3], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 4], state: "minecraft:polished_andesite"},
-        {pos: [0, 1, 0], state: "minecraft:air"},
-        {pos: [0, 1, 1], state: "minecraft:air"},
-        {pos: [0, 1, 2], state: "minecraft:air"},
-        {pos: [0, 1, 3], state: "minecraft:air"},
-        {pos: [0, 1, 4], state: "minecraft:air"},
-        {pos: [1, 1, 0], state: "minecraft:air"},
-        {pos: [1, 1, 1], state: "minecraft:air"},
-        {pos: [1, 1, 2], state: "minecraft:air"},
-        {pos: [1, 1, 3], state: "minecraft:air"},
-        {pos: [1, 1, 4], state: "minecraft:air"},
-        {pos: [2, 1, 0], state: "minecraft:air"},
-        {pos: [2, 1, 1], state: "minecraft:air"},
         {pos: [2, 1, 2], state: "computercraft:computer_advanced{facing:north,state:on}", nbt: {ComputerId: 1, Label: "computer_test.self_output_update", On: 1b, id: "computercraft:computer_advanced"}},
-        {pos: [2, 1, 3], state: "minecraft:polished_andesite"},
-        {pos: [2, 1, 4], state: "minecraft:air"},
-        {pos: [3, 1, 0], state: "minecraft:air"},
-        {pos: [3, 1, 1], state: "minecraft:air"},
-        {pos: [3, 1, 2], state: "minecraft:air"},
-        {pos: [3, 1, 3], state: "minecraft:air"},
-        {pos: [3, 1, 4], state: "minecraft:air"},
-        {pos: [4, 1, 0], state: "minecraft:air"},
-        {pos: [4, 1, 1], state: "minecraft:air"},
-        {pos: [4, 1, 2], state: "minecraft:air"},
-        {pos: [4, 1, 3], state: "minecraft:air"},
-        {pos: [4, 1, 4], state: "minecraft:air"},
-        {pos: [0, 2, 0], state: "minecraft:air"},
-        {pos: [0, 2, 1], state: "minecraft:air"},
-        {pos: [0, 2, 2], state: "minecraft:air"},
-        {pos: [0, 2, 3], state: "minecraft:air"},
-        {pos: [0, 2, 4], state: "minecraft:air"},
-        {pos: [1, 2, 0], state: "minecraft:air"},
-        {pos: [1, 2, 1], state: "minecraft:air"},
-        {pos: [1, 2, 2], state: "minecraft:air"},
-        {pos: [1, 2, 3], state: "minecraft:air"},
-        {pos: [1, 2, 4], state: "minecraft:air"},
-        {pos: [2, 2, 0], state: "minecraft:air"},
-        {pos: [2, 2, 1], state: "minecraft:air"},
-        {pos: [2, 2, 2], state: "minecraft:air"},
-        {pos: [2, 2, 3], state: "minecraft:air"},
-        {pos: [2, 2, 4], state: "minecraft:air"},
-        {pos: [3, 2, 0], state: "minecraft:air"},
-        {pos: [3, 2, 1], state: "minecraft:air"},
-        {pos: [3, 2, 2], state: "minecraft:air"},
-        {pos: [3, 2, 3], state: "minecraft:air"},
-        {pos: [3, 2, 4], state: "minecraft:air"},
-        {pos: [4, 2, 0], state: "minecraft:air"},
-        {pos: [4, 2, 1], state: "minecraft:air"},
-        {pos: [4, 2, 2], state: "minecraft:air"},
-        {pos: [4, 2, 3], state: "minecraft:air"},
-        {pos: [4, 2, 4], state: "minecraft:air"},
-        {pos: [0, 3, 0], state: "minecraft:air"},
-        {pos: [0, 3, 1], state: "minecraft:air"},
-        {pos: [0, 3, 2], state: "minecraft:air"},
-        {pos: [0, 3, 3], state: "minecraft:air"},
-        {pos: [0, 3, 4], state: "minecraft:air"},
-        {pos: [1, 3, 0], state: "minecraft:air"},
-        {pos: [1, 3, 1], state: "minecraft:air"},
-        {pos: [1, 3, 2], state: "minecraft:air"},
-        {pos: [1, 3, 3], state: "minecraft:air"},
-        {pos: [1, 3, 4], state: "minecraft:air"},
-        {pos: [2, 3, 0], state: "minecraft:air"},
-        {pos: [2, 3, 1], state: "minecraft:air"},
-        {pos: [2, 3, 2], state: "minecraft:air"},
-        {pos: [2, 3, 3], state: "minecraft:air"},
-        {pos: [2, 3, 4], state: "minecraft:air"},
-        {pos: [3, 3, 0], state: "minecraft:air"},
-        {pos: [3, 3, 1], state: "minecraft:air"},
-        {pos: [3, 3, 2], state: "minecraft:air"},
-        {pos: [3, 3, 3], state: "minecraft:air"},
-        {pos: [3, 3, 4], state: "minecraft:air"},
-        {pos: [4, 3, 0], state: "minecraft:air"},
-        {pos: [4, 3, 1], state: "minecraft:air"},
-        {pos: [4, 3, 2], state: "minecraft:air"},
-        {pos: [4, 3, 3], state: "minecraft:air"},
-        {pos: [4, 3, 4], state: "minecraft:air"},
-        {pos: [0, 4, 0], state: "minecraft:air"},
-        {pos: [0, 4, 1], state: "minecraft:air"},
-        {pos: [0, 4, 2], state: "minecraft:air"},
-        {pos: [0, 4, 3], state: "minecraft:air"},
-        {pos: [0, 4, 4], state: "minecraft:air"},
-        {pos: [1, 4, 0], state: "minecraft:air"},
-        {pos: [1, 4, 1], state: "minecraft:air"},
-        {pos: [1, 4, 2], state: "minecraft:air"},
-        {pos: [1, 4, 3], state: "minecraft:air"},
-        {pos: [1, 4, 4], state: "minecraft:air"},
-        {pos: [2, 4, 0], state: "minecraft:air"},
-        {pos: [2, 4, 1], state: "minecraft:air"},
-        {pos: [2, 4, 2], state: "minecraft:air"},
-        {pos: [2, 4, 3], state: "minecraft:air"},
-        {pos: [2, 4, 4], state: "minecraft:air"},
-        {pos: [3, 4, 0], state: "minecraft:air"},
-        {pos: [3, 4, 1], state: "minecraft:air"},
-        {pos: [3, 4, 2], state: "minecraft:air"},
-        {pos: [3, 4, 3], state: "minecraft:air"},
-        {pos: [3, 4, 4], state: "minecraft:air"},
-        {pos: [4, 4, 0], state: "minecraft:air"},
-        {pos: [4, 4, 1], state: "minecraft:air"},
-        {pos: [4, 4, 2], state: "minecraft:air"},
-        {pos: [4, 4, 3], state: "minecraft:air"},
-        {pos: [4, 4, 4], state: "minecraft:air"}
+        {pos: [2, 1, 3], state: "minecraft:polished_andesite"}
     ],
     entities: [],
     palette: [
         "minecraft:polished_andesite",
-        "minecraft:air",
         "computercraft:computer_advanced{facing:north,state:on}"
     ]
 }

projects/common/src/testMod/resources/data/cctest/structures/computer_test.set_and_destroy.snbt

@@ -27,112 +27,13 @@
         {pos: [4, 0, 2], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 3], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 4], state: "minecraft:polished_andesite"},
-        {pos: [0, 1, 0], state: "minecraft:air"},
-        {pos: [0, 1, 1], state: "minecraft:air"},
-        {pos: [0, 1, 2], state: "minecraft:air"},
-        {pos: [0, 1, 3], state: "minecraft:air"},
-        {pos: [0, 1, 4], state: "minecraft:air"},
-        {pos: [1, 1, 0], state: "minecraft:air"},
-        {pos: [1, 1, 1], state: "minecraft:air"},
-        {pos: [1, 1, 2], state: "minecraft:air"},
-        {pos: [1, 1, 3], state: "minecraft:air"},
-        {pos: [1, 1, 4], state: "minecraft:air"},
-        {pos: [2, 1, 0], state: "minecraft:air"},
-        {pos: [2, 1, 1], state: "minecraft:air"},
         {pos: [2, 1, 2], state: "computercraft:computer_advanced{facing:north,state:on}", nbt: {ComputerId: 1, Label: "computer_test.set_and_destroy", On: 1b, id: "computercraft:computer_advanced"}},
-        {pos: [2, 1, 3], state: "minecraft:redstone_lamp{lit:false}"},
-        {pos: [2, 1, 4], state: "minecraft:air"},
-        {pos: [3, 1, 0], state: "minecraft:air"},
-        {pos: [3, 1, 1], state: "minecraft:air"},
-        {pos: [3, 1, 2], state: "minecraft:air"},
-        {pos: [3, 1, 3], state: "minecraft:air"},
-        {pos: [3, 1, 4], state: "minecraft:air"},
-        {pos: [4, 1, 0], state: "minecraft:air"},
-        {pos: [4, 1, 1], state: "minecraft:air"},
-        {pos: [4, 1, 2], state: "minecraft:air"},
-        {pos: [4, 1, 3], state: "minecraft:air"},
-        {pos: [4, 1, 4], state: "minecraft:air"},
-        {pos: [0, 2, 0], state: "minecraft:air"},
-        {pos: [0, 2, 1], state: "minecraft:air"},
-        {pos: [0, 2, 2], state: "minecraft:air"},
-        {pos: [0, 2, 3], state: "minecraft:air"},
-        {pos: [0, 2, 4], state: "minecraft:air"},
-        {pos: [1, 2, 0], state: "minecraft:air"},
-        {pos: [1, 2, 1], state: "minecraft:air"},
-        {pos: [1, 2, 2], state: "minecraft:air"},
-        {pos: [1, 2, 3], state: "minecraft:air"},
-        {pos: [1, 2, 4], state: "minecraft:air"},
-        {pos: [2, 2, 0], state: "minecraft:air"},
-        {pos: [2, 2, 1], state: "minecraft:air"},
-        {pos: [2, 2, 2], state: "minecraft:air"},
-        {pos: [2, 2, 3], state: "minecraft:air"},
-        {pos: [2, 2, 4], state: "minecraft:air"},
-        {pos: [3, 2, 0], state: "minecraft:air"},
-        {pos: [3, 2, 1], state: "minecraft:air"},
-        {pos: [3, 2, 2], state: "minecraft:air"},
-        {pos: [3, 2, 3], state: "minecraft:air"},
-        {pos: [3, 2, 4], state: "minecraft:air"},
-        {pos: [4, 2, 0], state: "minecraft:air"},
-        {pos: [4, 2, 1], state: "minecraft:air"},
-        {pos: [4, 2, 2], state: "minecraft:air"},
-        {pos: [4, 2, 3], state: "minecraft:air"},
-        {pos: [4, 2, 4], state: "minecraft:air"},
-        {pos: [0, 3, 0], state: "minecraft:air"},
-        {pos: [0, 3, 1], state: "minecraft:air"},
-        {pos: [0, 3, 2], state: "minecraft:air"},
-        {pos: [0, 3, 3], state: "minecraft:air"},
-        {pos: [0, 3, 4], state: "minecraft:air"},
-        {pos: [1, 3, 0], state: "minecraft:air"},
-        {pos: [1, 3, 1], state: "minecraft:air"},
-        {pos: [1, 3, 2], state: "minecraft:air"},
-        {pos: [1, 3, 3], state: "minecraft:air"},
-        {pos: [1, 3, 4], state: "minecraft:air"},
-        {pos: [2, 3, 0], state: "minecraft:air"},
-        {pos: [2, 3, 1], state: "minecraft:air"},
-        {pos: [2, 3, 2], state: "minecraft:air"},
-        {pos: [2, 3, 3], state: "minecraft:air"},
-        {pos: [2, 3, 4], state: "minecraft:air"},
-        {pos: [3, 3, 0], state: "minecraft:air"},
-        {pos: [3, 3, 1], state: "minecraft:air"},
-        {pos: [3, 3, 2], state: "minecraft:air"},
-        {pos: [3, 3, 3], state: "minecraft:air"},
-        {pos: [3, 3, 4], state: "minecraft:air"},
-        {pos: [4, 3, 0], state: "minecraft:air"},
-        {pos: [4, 3, 1], state: "minecraft:air"},
-        {pos: [4, 3, 2], state: "minecraft:air"},
-        {pos: [4, 3, 3], state: "minecraft:air"},
-        {pos: [4, 3, 4], state: "minecraft:air"},
-        {pos: [0, 4, 0], state: "minecraft:air"},
-        {pos: [0, 4, 1], state: "minecraft:air"},
-        {pos: [0, 4, 2], state: "minecraft:air"},
-        {pos: [0, 4, 3], state: "minecraft:air"},
-        {pos: [0, 4, 4], state: "minecraft:air"},
-        {pos: [1, 4, 0], state: "minecraft:air"},
-        {pos: [1, 4, 1], state: "minecraft:air"},
-        {pos: [1, 4, 2], state: "minecraft:air"},
-        {pos: [1, 4, 3], state: "minecraft:air"},
-        {pos: [1, 4, 4], state: "minecraft:air"},
-        {pos: [2, 4, 0], state: "minecraft:air"},
-        {pos: [2, 4, 1], state: "minecraft:air"},
-        {pos: [2, 4, 2], state: "minecraft:air"},
-        {pos: [2, 4, 3], state: "minecraft:air"},
-        {pos: [2, 4, 4], state: "minecraft:air"},
-        {pos: [3, 4, 0], state: "minecraft:air"},
-        {pos: [3, 4, 1], state: "minecraft:air"},
-        {pos: [3, 4, 2], state: "minecraft:air"},
-        {pos: [3, 4, 3], state: "minecraft:air"},
-        {pos: [3, 4, 4], state: "minecraft:air"},
-        {pos: [4, 4, 0], state: "minecraft:air"},
-        {pos: [4, 4, 1], state: "minecraft:air"},
-        {pos: [4, 4, 2], state: "minecraft:air"},
-        {pos: [4, 4, 3], state: "minecraft:air"},
-        {pos: [4, 4, 4], state: "minecraft:air"}
+        {pos: [2, 1, 3], state: "minecraft:redstone_lamp{lit:false}"}
     ],
     entities: [],
     palette: [
         "minecraft:polished_andesite",
         "minecraft:redstone_lamp{lit:false}",
-        "minecraft:air",
         "computercraft:computer_advanced{facing:north,state:on}"
     ]
 }

projects/common/src/testMod/resources/data/cctest/structures/craftos_test.sends_basic_rednet_messages.snbt

@@ -27,111 +27,14 @@
         {pos: [4, 0, 2], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 3], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 4], state: "minecraft:polished_andesite"},
-        {pos: [0, 1, 0], state: "minecraft:air"},
-        {pos: [0, 1, 1], state: "minecraft:air"},
-        {pos: [0, 1, 2], state: "minecraft:air"},
-        {pos: [0, 1, 3], state: "minecraft:air"},
-        {pos: [0, 1, 4], state: "minecraft:air"},
-        {pos: [1, 1, 0], state: "minecraft:air"},
-        {pos: [1, 1, 1], state: "minecraft:air"},
         {pos: [1, 1, 2], state: "computercraft:computer_advanced{facing:north,state:on}", nbt: {ComputerId: 0, Label: "craftos_test.sends_basic_rednet_messages.echo", On: 1b, id: "computercraft:computer_advanced"}},
-        {pos: [1, 1, 3], state: "minecraft:air"},
-        {pos: [1, 1, 4], state: "minecraft:air"},
-        {pos: [2, 1, 0], state: "minecraft:air"},
-        {pos: [2, 1, 1], state: "minecraft:air"},
-        {pos: [2, 1, 2], state: "minecraft:air"},
-        {pos: [2, 1, 3], state: "minecraft:air"},
-        {pos: [2, 1, 4], state: "minecraft:air"},
-        {pos: [3, 1, 0], state: "minecraft:air"},
-        {pos: [3, 1, 1], state: "minecraft:air"},
         {pos: [3, 1, 2], state: "computercraft:computer_advanced{facing:north,state:blinking}", nbt: {ComputerId: 0, Label: "craftos_test.sends_basic_rednet_messages.main", On: 1b, id: "computercraft:computer_advanced"}},
-        {pos: [3, 1, 3], state: "minecraft:air"},
-        {pos: [3, 1, 4], state: "minecraft:air"},
-        {pos: [4, 1, 0], state: "minecraft:air"},
-        {pos: [4, 1, 1], state: "minecraft:air"},
-        {pos: [4, 1, 2], state: "minecraft:air"},
-        {pos: [4, 1, 3], state: "minecraft:air"},
-        {pos: [4, 1, 4], state: "minecraft:air"},
-        {pos: [0, 2, 0], state: "minecraft:air"},
-        {pos: [0, 2, 1], state: "minecraft:air"},
-        {pos: [0, 2, 2], state: "minecraft:air"},
-        {pos: [0, 2, 3], state: "minecraft:air"},
-        {pos: [0, 2, 4], state: "minecraft:air"},
-        {pos: [1, 2, 0], state: "minecraft:air"},
-        {pos: [1, 2, 1], state: "minecraft:air"},
         {pos: [1, 2, 2], state: "computercraft:wireless_modem_normal{facing:down,on:true,waterlogged:false}", nbt: {id: "computercraft:wireless_modem_normal"}},
-        {pos: [1, 2, 3], state: "minecraft:air"},
-        {pos: [1, 2, 4], state: "minecraft:air"},
-        {pos: [2, 2, 0], state: "minecraft:air"},
-        {pos: [2, 2, 1], state: "minecraft:air"},
-        {pos: [2, 2, 2], state: "minecraft:air"},
-        {pos: [2, 2, 3], state: "minecraft:air"},
-        {pos: [2, 2, 4], state: "minecraft:air"},
-        {pos: [3, 2, 0], state: "minecraft:air"},
-        {pos: [3, 2, 1], state: "minecraft:air"},
-        {pos: [3, 2, 2], state: "computercraft:wireless_modem_normal{facing:down,on:true,waterlogged:false}", nbt: {id: "computercraft:wireless_modem_normal"}},
-        {pos: [3, 2, 3], state: "minecraft:air"},
-        {pos: [3, 2, 4], state: "minecraft:air"},
-        {pos: [4, 2, 0], state: "minecraft:air"},
-        {pos: [4, 2, 1], state: "minecraft:air"},
-        {pos: [4, 2, 2], state: "minecraft:air"},
-        {pos: [4, 2, 3], state: "minecraft:air"},
-        {pos: [4, 2, 4], state: "minecraft:air"},
-        {pos: [0, 3, 0], state: "minecraft:air"},
-        {pos: [0, 3, 1], state: "minecraft:air"},
-        {pos: [0, 3, 2], state: "minecraft:air"},
-        {pos: [0, 3, 3], state: "minecraft:air"},
-        {pos: [0, 3, 4], state: "minecraft:air"},
-        {pos: [1, 3, 0], state: "minecraft:air"},
-        {pos: [1, 3, 1], state: "minecraft:air"},
-        {pos: [1, 3, 2], state: "minecraft:air"},
-        {pos: [1, 3, 3], state: "minecraft:air"},
-        {pos: [1, 3, 4], state: "minecraft:air"},
-        {pos: [2, 3, 0], state: "minecraft:air"},
-        {pos: [2, 3, 1], state: "minecraft:air"},
-        {pos: [2, 3, 2], state: "minecraft:air"},
-        {pos: [2, 3, 3], state: "minecraft:air"},
-        {pos: [2, 3, 4], state: "minecraft:air"},
-        {pos: [3, 3, 0], state: "minecraft:air"},
-        {pos: [3, 3, 1], state: "minecraft:air"},
-        {pos: [3, 3, 2], state: "minecraft:air"},
-        {pos: [3, 3, 3], state: "minecraft:air"},
-        {pos: [3, 3, 4], state: "minecraft:air"},
-        {pos: [4, 3, 0], state: "minecraft:air"},
-        {pos: [4, 3, 1], state: "minecraft:air"},
-        {pos: [4, 3, 2], state: "minecraft:air"},
-        {pos: [4, 3, 3], state: "minecraft:air"},
-        {pos: [4, 3, 4], state: "minecraft:air"},
-        {pos: [0, 4, 0], state: "minecraft:air"},
-        {pos: [0, 4, 1], state: "minecraft:air"},
-        {pos: [0, 4, 2], state: "minecraft:air"},
-        {pos: [0, 4, 3], state: "minecraft:air"},
-        {pos: [0, 4, 4], state: "minecraft:air"},
-        {pos: [1, 4, 0], state: "minecraft:air"},
-        {pos: [1, 4, 1], state: "minecraft:air"},
-        {pos: [1, 4, 2], state: "minecraft:air"},
-        {pos: [1, 4, 3], state: "minecraft:air"},
-        {pos: [1, 4, 4], state: "minecraft:air"},
-        {pos: [2, 4, 0], state: "minecraft:air"},
-        {pos: [2, 4, 1], state: "minecraft:air"},
-        {pos: [2, 4, 2], state: "minecraft:air"},
-        {pos: [2, 4, 3], state: "minecraft:air"},
-        {pos: [2, 4, 4], state: "minecraft:air"},
-        {pos: [3, 4, 0], state: "minecraft:air"},
-        {pos: [3, 4, 1], state: "minecraft:air"},
-        {pos: [3, 4, 2], state: "minecraft:air"},
-        {pos: [3, 4, 3], state: "minecraft:air"},
-        {pos: [3, 4, 4], state: "minecraft:air"},
-        {pos: [4, 4, 0], state: "minecraft:air"},
-        {pos: [4, 4, 1], state: "minecraft:air"},
-        {pos: [4, 4, 2], state: "minecraft:air"},
-        {pos: [4, 4, 3], state: "minecraft:air"},
-        {pos: [4, 4, 4], state: "minecraft:air"}
+        {pos: [3, 2, 2], state: "computercraft:wireless_modem_normal{facing:down,on:true,waterlogged:false}", nbt: {id: "computercraft:wireless_modem_normal"}}
     ],
     entities: [],
     palette: [
         "minecraft:polished_andesite",
-        "minecraft:air",
         "computercraft:computer_advanced{facing:north,state:on}",
         "computercraft:computer_advanced{facing:north,state:blinking}",
         "computercraft:wireless_modem_normal{facing:down,on:true,waterlogged:false}"

projects/common/src/testMod/resources/data/cctest/structures/default.snbt

@@ -26,111 +26,10 @@
         {pos: [4, 0, 1], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 2], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 3], state: "minecraft:polished_andesite"},
-        {pos: [4, 0, 4], state: "minecraft:polished_andesite"},
-        {pos: [0, 1, 0], state: "minecraft:air"},
-        {pos: [0, 1, 1], state: "minecraft:air"},
-        {pos: [0, 1, 2], state: "minecraft:air"},
-        {pos: [0, 1, 3], state: "minecraft:air"},
-        {pos: [0, 1, 4], state: "minecraft:air"},
-        {pos: [1, 1, 0], state: "minecraft:air"},
-        {pos: [1, 1, 1], state: "minecraft:air"},
-        {pos: [1, 1, 2], state: "minecraft:air"},
-        {pos: [1, 1, 3], state: "minecraft:air"},
-        {pos: [1, 1, 4], state: "minecraft:air"},
-        {pos: [2, 1, 0], state: "minecraft:air"},
-        {pos: [2, 1, 1], state: "minecraft:air"},
-        {pos: [2, 1, 2], state: "minecraft:air"},
-        {pos: [2, 1, 3], state: "minecraft:air"},
-        {pos: [2, 1, 4], state: "minecraft:air"},
-        {pos: [3, 1, 0], state: "minecraft:air"},
-        {pos: [3, 1, 1], state: "minecraft:air"},
-        {pos: [3, 1, 2], state: "minecraft:air"},
-        {pos: [3, 1, 3], state: "minecraft:air"},
-        {pos: [3, 1, 4], state: "minecraft:air"},
-        {pos: [4, 1, 0], state: "minecraft:air"},
-        {pos: [4, 1, 1], state: "minecraft:air"},
-        {pos: [4, 1, 2], state: "minecraft:air"},
-        {pos: [4, 1, 3], state: "minecraft:air"},
-        {pos: [4, 1, 4], state: "minecraft:air"},
-        {pos: [0, 2, 0], state: "minecraft:air"},
-        {pos: [0, 2, 1], state: "minecraft:air"},
-        {pos: [0, 2, 2], state: "minecraft:air"},
-        {pos: [0, 2, 3], state: "minecraft:air"},
-        {pos: [0, 2, 4], state: "minecraft:air"},
-        {pos: [1, 2, 0], state: "minecraft:air"},
-        {pos: [1, 2, 1], state: "minecraft:air"},
-        {pos: [1, 2, 2], state: "minecraft:air"},
-        {pos: [1, 2, 3], state: "minecraft:air"},
-        {pos: [1, 2, 4], state: "minecraft:air"},
-        {pos: [2, 2, 0], state: "minecraft:air"},
-        {pos: [2, 2, 1], state: "minecraft:air"},
-        {pos: [2, 2, 2], state: "minecraft:air"},
-        {pos: [2, 2, 3], state: "minecraft:air"},
-        {pos: [2, 2, 4], state: "minecraft:air"},
-        {pos: [3, 2, 0], state: "minecraft:air"},
-        {pos: [3, 2, 1], state: "minecraft:air"},
-        {pos: [3, 2, 2], state: "minecraft:air"},
-        {pos: [3, 2, 3], state: "minecraft:air"},
-        {pos: [3, 2, 4], state: "minecraft:air"},
-        {pos: [4, 2, 0], state: "minecraft:air"},
-        {pos: [4, 2, 1], state: "minecraft:air"},
-        {pos: [4, 2, 2], state: "minecraft:air"},
-        {pos: [4, 2, 3], state: "minecraft:air"},
-        {pos: [4, 2, 4], state: "minecraft:air"},
-        {pos: [0, 3, 0], state: "minecraft:air"},
-        {pos: [0, 3, 1], state: "minecraft:air"},
-        {pos: [0, 3, 2], state: "minecraft:air"},
-        {pos: [0, 3, 3], state: "minecraft:air"},
-        {pos: [0, 3, 4], state: "minecraft:air"},
-        {pos: [1, 3, 0], state: "minecraft:air"},
-        {pos: [1, 3, 1], state: "minecraft:air"},
-        {pos: [1, 3, 2], state: "minecraft:air"},
-        {pos: [1, 3, 3], state: "minecraft:air"},
-        {pos: [1, 3, 4], state: "minecraft:air"},
-        {pos: [2, 3, 0], state: "minecraft:air"},
-        {pos: [2, 3, 1], state: "minecraft:air"},
-        {pos: [2, 3, 2], state: "minecraft:air"},
-        {pos: [2, 3, 3], state: "minecraft:air"},
-        {pos: [2, 3, 4], state: "minecraft:air"},
-        {pos: [3, 3, 0], state: "minecraft:air"},
-        {pos: [3, 3, 1], state: "minecraft:air"},
-        {pos: [3, 3, 2], state: "minecraft:air"},
-        {pos: [3, 3, 3], state: "minecraft:air"},
-        {pos: [3, 3, 4], state: "minecraft:air"},
-        {pos: [4, 3, 0], state: "minecraft:air"},
-        {pos: [4, 3, 1], state: "minecraft:air"},
-        {pos: [4, 3, 2], state: "minecraft:air"},
-        {pos: [4, 3, 3], state: "minecraft:air"},
-        {pos: [4, 3, 4], state: "minecraft:air"},
-        {pos: [0, 4, 0], state: "minecraft:air"},
-        {pos: [0, 4, 1], state: "minecraft:air"},
-        {pos: [0, 4, 2], state: "minecraft:air"},
-        {pos: [0, 4, 3], state: "minecraft:air"},
-        {pos: [0, 4, 4], state: "minecraft:air"},
-        {pos: [1, 4, 0], state: "minecraft:air"},
-        {pos: [1, 4, 1], state: "minecraft:air"},
-        {pos: [1, 4, 2], state: "minecraft:air"},
-        {pos: [1, 4, 3], state: "minecraft:air"},
-        {pos: [1, 4, 4], state: "minecraft:air"},
-        {pos: [2, 4, 0], state: "minecraft:air"},
-        {pos: [2, 4, 1], state: "minecraft:air"},
-        {pos: [2, 4, 2], state: "minecraft:air"},
-        {pos: [2, 4, 3], state: "minecraft:air"},
-        {pos: [2, 4, 4], state: "minecraft:air"},
-        {pos: [3, 4, 0], state: "minecraft:air"},
-        {pos: [3, 4, 1], state: "minecraft:air"},
-        {pos: [3, 4, 2], state: "minecraft:air"},
-        {pos: [3, 4, 3], state: "minecraft:air"},
-        {pos: [3, 4, 4], state: "minecraft:air"},
-        {pos: [4, 4, 0], state: "minecraft:air"},
-        {pos: [4, 4, 1], state: "minecraft:air"},
-        {pos: [4, 4, 2], state: "minecraft:air"},
-        {pos: [4, 4, 3], state: "minecraft:air"},
-        {pos: [4, 4, 4], state: "minecraft:air"}
+        {pos: [4, 0, 4], state: "minecraft:polished_andesite"}
     ],
     entities: [],
     palette: [
-        "minecraft:polished_andesite",
-        "minecraft:air"
+        "minecraft:polished_andesite"
     ]
 }

projects/common/src/testMod/resources/data/cctest/structures/disk_drive_test.adds_removes_mount.snbt

@@ -27,111 +27,12 @@
         {pos: [4, 0, 2], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 3], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 4], state: "minecraft:polished_andesite"},
-        {pos: [0, 1, 0], state: "minecraft:air"},
-        {pos: [0, 1, 1], state: "minecraft:air"},
-        {pos: [0, 1, 2], state: "minecraft:air"},
-        {pos: [0, 1, 3], state: "minecraft:air"},
-        {pos: [0, 1, 4], state: "minecraft:air"},
-        {pos: [1, 1, 0], state: "minecraft:air"},
-        {pos: [1, 1, 1], state: "minecraft:air"},
         {pos: [1, 1, 2], state: "computercraft:disk_drive{facing:north,state:full}", nbt: {id: "computercraft:disk_drive"}},
-        {pos: [1, 1, 3], state: "minecraft:air"},
-        {pos: [1, 1, 4], state: "minecraft:air"},
-        {pos: [2, 1, 0], state: "minecraft:air"},
-        {pos: [2, 1, 1], state: "minecraft:air"},
-        {pos: [2, 1, 2], state: "computercraft:computer_advanced{facing:north,state:blinking}", nbt: {ComputerId: 1, Label: "disk_drive_test.adds_removes_mount", On: 1b, id: "computercraft:computer_advanced"}},
-        {pos: [2, 1, 3], state: "minecraft:air"},
-        {pos: [2, 1, 4], state: "minecraft:air"},
-        {pos: [3, 1, 0], state: "minecraft:air"},
-        {pos: [3, 1, 1], state: "minecraft:air"},
-        {pos: [3, 1, 2], state: "minecraft:air"},
-        {pos: [3, 1, 3], state: "minecraft:air"},
-        {pos: [3, 1, 4], state: "minecraft:air"},
-        {pos: [4, 1, 0], state: "minecraft:air"},
-        {pos: [4, 1, 1], state: "minecraft:air"},
-        {pos: [4, 1, 2], state: "minecraft:air"},
-        {pos: [4, 1, 3], state: "minecraft:air"},
-        {pos: [4, 1, 4], state: "minecraft:air"},
-        {pos: [0, 2, 0], state: "minecraft:air"},
-        {pos: [0, 2, 1], state: "minecraft:air"},
-        {pos: [0, 2, 2], state: "minecraft:air"},
-        {pos: [0, 2, 3], state: "minecraft:air"},
-        {pos: [0, 2, 4], state: "minecraft:air"},
-        {pos: [1, 2, 0], state: "minecraft:air"},
-        {pos: [1, 2, 1], state: "minecraft:air"},
-        {pos: [1, 2, 2], state: "minecraft:air"},
-        {pos: [1, 2, 3], state: "minecraft:air"},
-        {pos: [1, 2, 4], state: "minecraft:air"},
-        {pos: [2, 2, 0], state: "minecraft:air"},
-        {pos: [2, 2, 1], state: "minecraft:air"},
-        {pos: [2, 2, 2], state: "minecraft:air"},
-        {pos: [2, 2, 3], state: "minecraft:air"},
-        {pos: [2, 2, 4], state: "minecraft:air"},
-        {pos: [3, 2, 0], state: "minecraft:air"},
-        {pos: [3, 2, 1], state: "minecraft:air"},
-        {pos: [3, 2, 2], state: "minecraft:air"},
-        {pos: [3, 2, 3], state: "minecraft:air"},
-        {pos: [3, 2, 4], state: "minecraft:air"},
-        {pos: [4, 2, 0], state: "minecraft:air"},
-        {pos: [4, 2, 1], state: "minecraft:air"},
-        {pos: [4, 2, 2], state: "minecraft:air"},
-        {pos: [4, 2, 3], state: "minecraft:air"},
-        {pos: [4, 2, 4], state: "minecraft:air"},
-        {pos: [0, 3, 0], state: "minecraft:air"},
-        {pos: [0, 3, 1], state: "minecraft:air"},
-        {pos: [0, 3, 2], state: "minecraft:air"},
-        {pos: [0, 3, 3], state: "minecraft:air"},
-        {pos: [0, 3, 4], state: "minecraft:air"},
-        {pos: [1, 3, 0], state: "minecraft:air"},
-        {pos: [1, 3, 1], state: "minecraft:air"},
-        {pos: [1, 3, 2], state: "minecraft:air"},
-        {pos: [1, 3, 3], state: "minecraft:air"},
-        {pos: [1, 3, 4], state: "minecraft:air"},
-        {pos: [2, 3, 0], state: "minecraft:air"},
-        {pos: [2, 3, 1], state: "minecraft:air"},
-        {pos: [2, 3, 2], state: "minecraft:air"},
-        {pos: [2, 3, 3], state: "minecraft:air"},
-        {pos: [2, 3, 4], state: "minecraft:air"},
-        {pos: [3, 3, 0], state: "minecraft:air"},
-        {pos: [3, 3, 1], state: "minecraft:air"},
-        {pos: [3, 3, 2], state: "minecraft:air"},
-        {pos: [3, 3, 3], state: "minecraft:air"},
-        {pos: [3, 3, 4], state: "minecraft:air"},
-        {pos: [4, 3, 0], state: "minecraft:air"},
-        {pos: [4, 3, 1], state: "minecraft:air"},
-        {pos: [4, 3, 2], state: "minecraft:air"},
-        {pos: [4, 3, 3], state: "minecraft:air"},
-        {pos: [4, 3, 4], state: "minecraft:air"},
-        {pos: [0, 4, 0], state: "minecraft:air"},
-        {pos: [0, 4, 1], state: "minecraft:air"},
-        {pos: [0, 4, 2], state: "minecraft:air"},
-        {pos: [0, 4, 3], state: "minecraft:air"},
-        {pos: [0, 4, 4], state: "minecraft:air"},
-        {pos: [1, 4, 0], state: "minecraft:air"},
-        {pos: [1, 4, 1], state: "minecraft:air"},
-        {pos: [1, 4, 2], state: "minecraft:air"},
-        {pos: [1, 4, 3], state: "minecraft:air"},
-        {pos: [1, 4, 4], state: "minecraft:air"},
-        {pos: [2, 4, 0], state: "minecraft:air"},
-        {pos: [2, 4, 1], state: "minecraft:air"},
-        {pos: [2, 4, 2], state: "minecraft:air"},
-        {pos: [2, 4, 3], state: "minecraft:air"},
-        {pos: [2, 4, 4], state: "minecraft:air"},
-        {pos: [3, 4, 0], state: "minecraft:air"},
-        {pos: [3, 4, 1], state: "minecraft:air"},
-        {pos: [3, 4, 2], state: "minecraft:air"},
-        {pos: [3, 4, 3], state: "minecraft:air"},
-        {pos: [3, 4, 4], state: "minecraft:air"},
-        {pos: [4, 4, 0], state: "minecraft:air"},
-        {pos: [4, 4, 1], state: "minecraft:air"},
-        {pos: [4, 4, 2], state: "minecraft:air"},
-        {pos: [4, 4, 3], state: "minecraft:air"},
-        {pos: [4, 4, 4], state: "minecraft:air"}
+        {pos: [2, 1, 2], state: "computercraft:computer_advanced{facing:north,state:blinking}", nbt: {ComputerId: 1, Label: "disk_drive_test.adds_removes_mount", On: 1b, id: "computercraft:computer_advanced"}}
     ],
     entities: [],
     palette: [
         "minecraft:polished_andesite",
-        "minecraft:air",
         "computercraft:disk_drive{facing:north,state:full}",
         "computercraft:computer_advanced{facing:north,state:blinking}"
     ]

projects/common/src/testMod/resources/data/cctest/structures/disk_drive_test.audio_disk.snbt

@@ -11,29 +11,12 @@
         {pos: [2, 0, 0], state: "minecraft:polished_andesite"},
         {pos: [2, 0, 1], state: "minecraft:polished_andesite"},
         {pos: [2, 0, 2], state: "minecraft:polished_andesite"},
-        {pos: [0, 1, 0], state: "minecraft:air"},
         {pos: [0, 1, 1], state: "computercraft:disk_drive{facing:north,state:full}", nbt: {Item: {Count: 1b, id: "minecraft:music_disc_13"}, id: "computercraft:disk_drive"}},
-        {pos: [0, 1, 2], state: "minecraft:air"},
-        {pos: [1, 1, 0], state: "minecraft:air"},
-        {pos: [1, 1, 1], state: "computercraft:computer_advanced{facing:north,state:blinking}", nbt: {ComputerId: 1, Label: "disk_drive_test.audio_disk", On: 1b, id: "computercraft:computer_advanced"}},
-        {pos: [1, 1, 2], state: "minecraft:air"},
-        {pos: [2, 1, 0], state: "minecraft:air"},
-        {pos: [2, 1, 1], state: "minecraft:air"},
-        {pos: [2, 1, 2], state: "minecraft:air"},
-        {pos: [0, 2, 0], state: "minecraft:air"},
-        {pos: [0, 2, 1], state: "minecraft:air"},
-        {pos: [0, 2, 2], state: "minecraft:air"},
-        {pos: [1, 2, 0], state: "minecraft:air"},
-        {pos: [1, 2, 1], state: "minecraft:air"},
-        {pos: [1, 2, 2], state: "minecraft:air"},
-        {pos: [2, 2, 0], state: "minecraft:air"},
-        {pos: [2, 2, 1], state: "minecraft:air"},
-        {pos: [2, 2, 2], state: "minecraft:air"}
+        {pos: [1, 1, 1], state: "computercraft:computer_advanced{facing:north,state:blinking}", nbt: {ComputerId: 1, Label: "disk_drive_test.audio_disk", On: 1b, id: "computercraft:computer_advanced"}}
     ],
     entities: [],
     palette: [
         "minecraft:polished_andesite",
-        "minecraft:air",
         "computercraft:disk_drive{facing:north,state:full}",
         "computercraft:computer_advanced{facing:north,state:blinking}"
     ]

projects/common/src/testMod/resources/data/cctest/structures/disk_drive_test.audio_title_when_empty.snbt

@@ -11,29 +11,12 @@
         {pos: [2, 0, 0], state: "minecraft:polished_andesite"},
         {pos: [2, 0, 1], state: "minecraft:polished_andesite"},
         {pos: [2, 0, 2], state: "minecraft:polished_andesite"},
-        {pos: [0, 1, 0], state: "minecraft:air"},
         {pos: [0, 1, 1], state: "computercraft:disk_drive{facing:north,state:full}", nbt: {id: "computercraft:disk_drive"}},
-        {pos: [0, 1, 2], state: "minecraft:air"},
-        {pos: [1, 1, 0], state: "minecraft:air"},
-        {pos: [1, 1, 1], state: "computercraft:computer_advanced{facing:north,state:blinking}", nbt: {ComputerId: 1, Label: "disk_drive_test.audio_title_when_empty", On: 1b, id: "computercraft:computer_advanced"}},
-        {pos: [1, 1, 2], state: "minecraft:air"},
-        {pos: [2, 1, 0], state: "minecraft:air"},
-        {pos: [2, 1, 1], state: "minecraft:air"},
-        {pos: [2, 1, 2], state: "minecraft:air"},
-        {pos: [0, 2, 0], state: "minecraft:air"},
-        {pos: [0, 2, 1], state: "minecraft:air"},
-        {pos: [0, 2, 2], state: "minecraft:air"},
-        {pos: [1, 2, 0], state: "minecraft:air"},
-        {pos: [1, 2, 1], state: "minecraft:air"},
-        {pos: [1, 2, 2], state: "minecraft:air"},
-        {pos: [2, 2, 0], state: "minecraft:air"},
-        {pos: [2, 2, 1], state: "minecraft:air"},
-        {pos: [2, 2, 2], state: "minecraft:air"}
+        {pos: [1, 1, 1], state: "computercraft:computer_advanced{facing:north,state:blinking}", nbt: {ComputerId: 1, Label: "disk_drive_test.audio_title_when_empty", On: 1b, id: "computercraft:computer_advanced"}}
     ],
     entities: [],
     palette: [
         "minecraft:polished_andesite",
-        "minecraft:air",
         "computercraft:disk_drive{facing:north,state:full}",
         "computercraft:computer_advanced{facing:north,state:blinking}"
     ]

projects/common/src/testMod/resources/data/cctest/structures/disk_drive_test.can_extract_items.snbt

@@ -0,0 +1,39 @@
+{
+    DataVersion: 3465,
+    size: [5, 5, 5],
+    data: [
+        {pos: [0, 0, 0], state: "minecraft:polished_andesite"},
+        {pos: [0, 0, 1], state: "minecraft:polished_andesite"},
+        {pos: [0, 0, 2], state: "minecraft:polished_andesite"},
+        {pos: [0, 0, 3], state: "minecraft:polished_andesite"},
+        {pos: [0, 0, 4], state: "minecraft:polished_andesite"},
+        {pos: [1, 0, 0], state: "minecraft:polished_andesite"},
+        {pos: [1, 0, 1], state: "minecraft:polished_andesite"},
+        {pos: [1, 0, 2], state: "minecraft:polished_andesite"},
+        {pos: [1, 0, 3], state: "minecraft:polished_andesite"},
+        {pos: [1, 0, 4], state: "minecraft:polished_andesite"},
+        {pos: [2, 0, 0], state: "minecraft:polished_andesite"},
+        {pos: [2, 0, 1], state: "minecraft:polished_andesite"},
+        {pos: [2, 0, 2], state: "minecraft:polished_andesite"},
+        {pos: [2, 0, 3], state: "minecraft:polished_andesite"},
+        {pos: [2, 0, 4], state: "minecraft:polished_andesite"},
+        {pos: [3, 0, 0], state: "minecraft:polished_andesite"},
+        {pos: [3, 0, 1], state: "minecraft:polished_andesite"},
+        {pos: [3, 0, 2], state: "minecraft:polished_andesite"},
+        {pos: [3, 0, 3], state: "minecraft:polished_andesite"},
+        {pos: [3, 0, 4], state: "minecraft:polished_andesite"},
+        {pos: [4, 0, 0], state: "minecraft:polished_andesite"},
+        {pos: [4, 0, 1], state: "minecraft:polished_andesite"},
+        {pos: [4, 0, 2], state: "minecraft:polished_andesite"},
+        {pos: [4, 0, 3], state: "minecraft:polished_andesite"},
+        {pos: [4, 0, 4], state: "minecraft:polished_andesite"},
+        {pos: [2, 1, 2], state: "minecraft:hopper{enabled:false,facing:down}", nbt: {Items: [], TransferCooldown: 0, id: "minecraft:hopper"}},
+        {pos: [2, 2, 2], state: "computercraft:disk_drive{facing:north,state:full}", nbt: {Item: {Count: 1b, id: "computercraft:computer_normal"}, id: "computercraft:disk_drive"}}
+    ],
+    entities: [],
+    palette: [
+        "minecraft:polished_andesite",
+        "minecraft:hopper{enabled:false,facing:down}",
+        "computercraft:disk_drive{facing:north,state:full}"
+    ]
+}

projects/common/src/testMod/resources/data/cctest/structures/disk_drive_test.can_insert_items.snbt

@@ -0,0 +1,39 @@
+{
+    DataVersion: 3465,
+    size: [5, 5, 5],
+    data: [
+        {pos: [0, 0, 0], state: "minecraft:polished_andesite"},
+        {pos: [0, 0, 1], state: "minecraft:polished_andesite"},
+        {pos: [0, 0, 2], state: "minecraft:polished_andesite"},
+        {pos: [0, 0, 3], state: "minecraft:polished_andesite"},
+        {pos: [0, 0, 4], state: "minecraft:polished_andesite"},
+        {pos: [1, 0, 0], state: "minecraft:polished_andesite"},
+        {pos: [1, 0, 1], state: "minecraft:polished_andesite"},
+        {pos: [1, 0, 2], state: "minecraft:polished_andesite"},
+        {pos: [1, 0, 3], state: "minecraft:polished_andesite"},
+        {pos: [1, 0, 4], state: "minecraft:polished_andesite"},
+        {pos: [2, 0, 0], state: "minecraft:polished_andesite"},
+        {pos: [2, 0, 1], state: "minecraft:polished_andesite"},
+        {pos: [2, 0, 2], state: "minecraft:polished_andesite"},
+        {pos: [2, 0, 3], state: "minecraft:polished_andesite"},
+        {pos: [2, 0, 4], state: "minecraft:polished_andesite"},
+        {pos: [3, 0, 0], state: "minecraft:polished_andesite"},
+        {pos: [3, 0, 1], state: "minecraft:polished_andesite"},
+        {pos: [3, 0, 2], state: "minecraft:polished_andesite"},
+        {pos: [3, 0, 3], state: "minecraft:polished_andesite"},
+        {pos: [3, 0, 4], state: "minecraft:polished_andesite"},
+        {pos: [4, 0, 0], state: "minecraft:polished_andesite"},
+        {pos: [4, 0, 1], state: "minecraft:polished_andesite"},
+        {pos: [4, 0, 2], state: "minecraft:polished_andesite"},
+        {pos: [4, 0, 3], state: "minecraft:polished_andesite"},
+        {pos: [4, 0, 4], state: "minecraft:polished_andesite"},
+        {pos: [2, 1, 2], state: "computercraft:disk_drive{facing:north,state:empty}", nbt: {id: "computercraft:disk_drive"}},
+        {pos: [2, 2, 2], state: "minecraft:hopper{enabled:false,facing:down}", nbt: {Items: [{Count: 1b, Slot: 0b, id: "computercraft:computer_normal"}], TransferCooldown: 0, id: "minecraft:hopper"}}
+    ],
+    entities: [],
+    palette: [
+        "minecraft:polished_andesite",
+        "computercraft:disk_drive{facing:north,state:empty}",
+        "minecraft:hopper{enabled:false,facing:down}"
+    ]
+}

projects/common/src/testMod/resources/data/cctest/structures/disk_drive_test.comparator.snbt

@@ -27,111 +27,13 @@
         {pos: [4, 0, 2], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 3], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 4], state: "minecraft:polished_andesite"},
-        {pos: [0, 1, 0], state: "minecraft:air"},
-        {pos: [0, 1, 1], state: "minecraft:air"},
-        {pos: [0, 1, 2], state: "minecraft:air"},
-        {pos: [0, 1, 3], state: "minecraft:air"},
-        {pos: [0, 1, 4], state: "minecraft:air"},
-        {pos: [1, 1, 0], state: "minecraft:air"},
-        {pos: [1, 1, 1], state: "minecraft:air"},
-        {pos: [1, 1, 2], state: "minecraft:air"},
-        {pos: [1, 1, 3], state: "minecraft:air"},
-        {pos: [1, 1, 4], state: "minecraft:air"},
-        {pos: [2, 1, 0], state: "minecraft:air"},
-        {pos: [2, 1, 1], state: "minecraft:air"},
         {pos: [2, 1, 2], state: "computercraft:disk_drive{facing:north,state:empty}", nbt: {id: "computercraft:disk_drive"}},
         {pos: [2, 1, 3], state: "minecraft:comparator{facing:north,mode:compare,powered:false}", nbt: {OutputSignal: 0, id: "minecraft:comparator"}},
-        {pos: [2, 1, 4], state: "minecraft:redstone_wire{east:none,north:side,power:0,south:side,west:none}"},
-        {pos: [3, 1, 0], state: "minecraft:air"},
-        {pos: [3, 1, 1], state: "minecraft:air"},
-        {pos: [3, 1, 2], state: "minecraft:air"},
-        {pos: [3, 1, 3], state: "minecraft:air"},
-        {pos: [3, 1, 4], state: "minecraft:air"},
-        {pos: [4, 1, 0], state: "minecraft:air"},
-        {pos: [4, 1, 1], state: "minecraft:air"},
-        {pos: [4, 1, 2], state: "minecraft:air"},
-        {pos: [4, 1, 3], state: "minecraft:air"},
-        {pos: [4, 1, 4], state: "minecraft:air"},
-        {pos: [0, 2, 0], state: "minecraft:air"},
-        {pos: [0, 2, 1], state: "minecraft:air"},
-        {pos: [0, 2, 2], state: "minecraft:air"},
-        {pos: [0, 2, 3], state: "minecraft:air"},
-        {pos: [0, 2, 4], state: "minecraft:air"},
-        {pos: [1, 2, 0], state: "minecraft:air"},
-        {pos: [1, 2, 1], state: "minecraft:air"},
-        {pos: [1, 2, 2], state: "minecraft:air"},
-        {pos: [1, 2, 3], state: "minecraft:air"},
-        {pos: [1, 2, 4], state: "minecraft:air"},
-        {pos: [2, 2, 0], state: "minecraft:air"},
-        {pos: [2, 2, 1], state: "minecraft:air"},
-        {pos: [2, 2, 2], state: "minecraft:air"},
-        {pos: [2, 2, 3], state: "minecraft:air"},
-        {pos: [2, 2, 4], state: "minecraft:air"},
-        {pos: [3, 2, 0], state: "minecraft:air"},
-        {pos: [3, 2, 1], state: "minecraft:air"},
-        {pos: [3, 2, 2], state: "minecraft:air"},
-        {pos: [3, 2, 3], state: "minecraft:air"},
-        {pos: [3, 2, 4], state: "minecraft:air"},
-        {pos: [4, 2, 0], state: "minecraft:air"},
-        {pos: [4, 2, 1], state: "minecraft:air"},
-        {pos: [4, 2, 2], state: "minecraft:air"},
-        {pos: [4, 2, 3], state: "minecraft:air"},
-        {pos: [4, 2, 4], state: "minecraft:air"},
-        {pos: [0, 3, 0], state: "minecraft:air"},
-        {pos: [0, 3, 1], state: "minecraft:air"},
-        {pos: [0, 3, 2], state: "minecraft:air"},
-        {pos: [0, 3, 3], state: "minecraft:air"},
-        {pos: [0, 3, 4], state: "minecraft:air"},
-        {pos: [1, 3, 0], state: "minecraft:air"},
-        {pos: [1, 3, 1], state: "minecraft:air"},
-        {pos: [1, 3, 2], state: "minecraft:air"},
-        {pos: [1, 3, 3], state: "minecraft:air"},
-        {pos: [1, 3, 4], state: "minecraft:air"},
-        {pos: [2, 3, 0], state: "minecraft:air"},
-        {pos: [2, 3, 1], state: "minecraft:air"},
-        {pos: [2, 3, 2], state: "minecraft:air"},
-        {pos: [2, 3, 3], state: "minecraft:air"},
-        {pos: [2, 3, 4], state: "minecraft:air"},
-        {pos: [3, 3, 0], state: "minecraft:air"},
-        {pos: [3, 3, 1], state: "minecraft:air"},
-        {pos: [3, 3, 2], state: "minecraft:air"},
-        {pos: [3, 3, 3], state: "minecraft:air"},
-        {pos: [3, 3, 4], state: "minecraft:air"},
-        {pos: [4, 3, 0], state: "minecraft:air"},
-        {pos: [4, 3, 1], state: "minecraft:air"},
-        {pos: [4, 3, 2], state: "minecraft:air"},
-        {pos: [4, 3, 3], state: "minecraft:air"},
-        {pos: [4, 3, 4], state: "minecraft:air"},
-        {pos: [0, 4, 0], state: "minecraft:air"},
-        {pos: [0, 4, 1], state: "minecraft:air"},
-        {pos: [0, 4, 2], state: "minecraft:air"},
-        {pos: [0, 4, 3], state: "minecraft:air"},
-        {pos: [0, 4, 4], state: "minecraft:air"},
-        {pos: [1, 4, 0], state: "minecraft:air"},
-        {pos: [1, 4, 1], state: "minecraft:air"},
-        {pos: [1, 4, 2], state: "minecraft:air"},
-        {pos: [1, 4, 3], state: "minecraft:air"},
-        {pos: [1, 4, 4], state: "minecraft:air"},
-        {pos: [2, 4, 0], state: "minecraft:air"},
-        {pos: [2, 4, 1], state: "minecraft:air"},
-        {pos: [2, 4, 2], state: "minecraft:air"},
-        {pos: [2, 4, 3], state: "minecraft:air"},
-        {pos: [2, 4, 4], state: "minecraft:air"},
-        {pos: [3, 4, 0], state: "minecraft:air"},
-        {pos: [3, 4, 1], state: "minecraft:air"},
-        {pos: [3, 4, 2], state: "minecraft:air"},
-        {pos: [3, 4, 3], state: "minecraft:air"},
-        {pos: [3, 4, 4], state: "minecraft:air"},
-        {pos: [4, 4, 0], state: "minecraft:air"},
-        {pos: [4, 4, 1], state: "minecraft:air"},
-        {pos: [4, 4, 2], state: "minecraft:air"},
-        {pos: [4, 4, 3], state: "minecraft:air"},
-        {pos: [4, 4, 4], state: "minecraft:air"}
+        {pos: [2, 1, 4], state: "minecraft:redstone_wire{east:none,north:side,power:0,south:side,west:none}"}
     ],
     entities: [],
     palette: [
         "minecraft:polished_andesite",
-        "minecraft:air",
         "minecraft:redstone_wire{east:none,north:side,power:0,south:side,west:none}",
         "computercraft:disk_drive{facing:north,state:empty}",
         "minecraft:comparator{facing:north,mode:compare,powered:false}"

projects/common/src/testMod/resources/data/cctest/structures/disk_drive_test.contents_updates_state.snbt

@@ -27,111 +27,11 @@
         {pos: [4, 0, 2], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 3], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 4], state: "minecraft:polished_andesite"},
-        {pos: [0, 1, 0], state: "minecraft:air"},
-        {pos: [0, 1, 1], state: "minecraft:air"},
-        {pos: [0, 1, 2], state: "minecraft:air"},
-        {pos: [0, 1, 3], state: "minecraft:air"},
-        {pos: [0, 1, 4], state: "minecraft:air"},
-        {pos: [1, 1, 0], state: "minecraft:air"},
-        {pos: [1, 1, 1], state: "minecraft:air"},
-        {pos: [1, 1, 2], state: "minecraft:air"},
-        {pos: [1, 1, 3], state: "minecraft:air"},
-        {pos: [1, 1, 4], state: "minecraft:air"},
-        {pos: [2, 1, 0], state: "minecraft:air"},
-        {pos: [2, 1, 1], state: "minecraft:air"},
-        {pos: [2, 1, 2], state: "computercraft:disk_drive{facing:north,state:empty}", nbt: {ForgeCaps: {}, id: "computercraft:disk_drive"}},
-        {pos: [2, 1, 3], state: "minecraft:air"},
-        {pos: [2, 1, 4], state: "minecraft:air"},
-        {pos: [3, 1, 0], state: "minecraft:air"},
-        {pos: [3, 1, 1], state: "minecraft:air"},
-        {pos: [3, 1, 2], state: "minecraft:air"},
-        {pos: [3, 1, 3], state: "minecraft:air"},
-        {pos: [3, 1, 4], state: "minecraft:air"},
-        {pos: [4, 1, 0], state: "minecraft:air"},
-        {pos: [4, 1, 1], state: "minecraft:air"},
-        {pos: [4, 1, 2], state: "minecraft:air"},
-        {pos: [4, 1, 3], state: "minecraft:air"},
-        {pos: [4, 1, 4], state: "minecraft:air"},
-        {pos: [0, 2, 0], state: "minecraft:air"},
-        {pos: [0, 2, 1], state: "minecraft:air"},
-        {pos: [0, 2, 2], state: "minecraft:air"},
-        {pos: [0, 2, 3], state: "minecraft:air"},
-        {pos: [0, 2, 4], state: "minecraft:air"},
-        {pos: [1, 2, 0], state: "minecraft:air"},
-        {pos: [1, 2, 1], state: "minecraft:air"},
-        {pos: [1, 2, 2], state: "minecraft:air"},
-        {pos: [1, 2, 3], state: "minecraft:air"},
-        {pos: [1, 2, 4], state: "minecraft:air"},
-        {pos: [2, 2, 0], state: "minecraft:air"},
-        {pos: [2, 2, 1], state: "minecraft:air"},
-        {pos: [2, 2, 2], state: "minecraft:air"},
-        {pos: [2, 2, 3], state: "minecraft:air"},
-        {pos: [2, 2, 4], state: "minecraft:air"},
-        {pos: [3, 2, 0], state: "minecraft:air"},
-        {pos: [3, 2, 1], state: "minecraft:air"},
-        {pos: [3, 2, 2], state: "minecraft:air"},
-        {pos: [3, 2, 3], state: "minecraft:air"},
-        {pos: [3, 2, 4], state: "minecraft:air"},
-        {pos: [4, 2, 0], state: "minecraft:air"},
-        {pos: [4, 2, 1], state: "minecraft:air"},
-        {pos: [4, 2, 2], state: "minecraft:air"},
-        {pos: [4, 2, 3], state: "minecraft:air"},
-        {pos: [4, 2, 4], state: "minecraft:air"},
-        {pos: [0, 3, 0], state: "minecraft:air"},
-        {pos: [0, 3, 1], state: "minecraft:air"},
-        {pos: [0, 3, 2], state: "minecraft:air"},
-        {pos: [0, 3, 3], state: "minecraft:air"},
-        {pos: [0, 3, 4], state: "minecraft:air"},
-        {pos: [1, 3, 0], state: "minecraft:air"},
-        {pos: [1, 3, 1], state: "minecraft:air"},
-        {pos: [1, 3, 2], state: "minecraft:air"},
-        {pos: [1, 3, 3], state: "minecraft:air"},
-        {pos: [1, 3, 4], state: "minecraft:air"},
-        {pos: [2, 3, 0], state: "minecraft:air"},
-        {pos: [2, 3, 1], state: "minecraft:air"},
-        {pos: [2, 3, 2], state: "minecraft:air"},
-        {pos: [2, 3, 3], state: "minecraft:air"},
-        {pos: [2, 3, 4], state: "minecraft:air"},
-        {pos: [3, 3, 0], state: "minecraft:air"},
-        {pos: [3, 3, 1], state: "minecraft:air"},
-        {pos: [3, 3, 2], state: "minecraft:air"},
-        {pos: [3, 3, 3], state: "minecraft:air"},
-        {pos: [3, 3, 4], state: "minecraft:air"},
-        {pos: [4, 3, 0], state: "minecraft:air"},
-        {pos: [4, 3, 1], state: "minecraft:air"},
-        {pos: [4, 3, 2], state: "minecraft:air"},
-        {pos: [4, 3, 3], state: "minecraft:air"},
-        {pos: [4, 3, 4], state: "minecraft:air"},
-        {pos: [0, 4, 0], state: "minecraft:air"},
-        {pos: [0, 4, 1], state: "minecraft:air"},
-        {pos: [0, 4, 2], state: "minecraft:air"},
-        {pos: [0, 4, 3], state: "minecraft:air"},
-        {pos: [0, 4, 4], state: "minecraft:air"},
-        {pos: [1, 4, 0], state: "minecraft:air"},
-        {pos: [1, 4, 1], state: "minecraft:air"},
-        {pos: [1, 4, 2], state: "minecraft:air"},
-        {pos: [1, 4, 3], state: "minecraft:air"},
-        {pos: [1, 4, 4], state: "minecraft:air"},
-        {pos: [2, 4, 0], state: "minecraft:air"},
-        {pos: [2, 4, 1], state: "minecraft:air"},
-        {pos: [2, 4, 2], state: "minecraft:air"},
-        {pos: [2, 4, 3], state: "minecraft:air"},
-        {pos: [2, 4, 4], state: "minecraft:air"},
-        {pos: [3, 4, 0], state: "minecraft:air"},
-        {pos: [3, 4, 1], state: "minecraft:air"},
-        {pos: [3, 4, 2], state: "minecraft:air"},
-        {pos: [3, 4, 3], state: "minecraft:air"},
-        {pos: [3, 4, 4], state: "minecraft:air"},
-        {pos: [4, 4, 0], state: "minecraft:air"},
-        {pos: [4, 4, 1], state: "minecraft:air"},
-        {pos: [4, 4, 2], state: "minecraft:air"},
-        {pos: [4, 4, 3], state: "minecraft:air"},
-        {pos: [4, 4, 4], state: "minecraft:air"}
+        {pos: [2, 1, 2], state: "computercraft:disk_drive{facing:north,state:empty}", nbt: {ForgeCaps: {}, id: "computercraft:disk_drive"}}
     ],
     entities: [],
     palette: [
         "minecraft:polished_andesite",
-        "minecraft:air",
         "computercraft:disk_drive{facing:north,state:empty}"
     ]
 }

projects/common/src/testMod/resources/data/cctest/structures/disk_drive_test.creates_disk_id.snbt

@@ -27,111 +27,12 @@
         {pos: [4, 0, 2], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 3], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 4], state: "minecraft:polished_andesite"},
-        {pos: [0, 1, 0], state: "minecraft:air"},
-        {pos: [0, 1, 1], state: "minecraft:air"},
-        {pos: [0, 1, 2], state: "minecraft:air"},
-        {pos: [0, 1, 3], state: "minecraft:air"},
-        {pos: [0, 1, 4], state: "minecraft:air"},
-        {pos: [1, 1, 0], state: "minecraft:air"},
-        {pos: [1, 1, 1], state: "minecraft:air"},
         {pos: [1, 1, 2], state: "computercraft:computer_advanced{facing:north,state:on}", nbt: {ComputerId: 1, Label: "disk_drive_test.creates_disk_id", On: 1b, id: "computercraft:computer_advanced"}},
-        {pos: [1, 1, 3], state: "minecraft:air"},
-        {pos: [1, 1, 4], state: "minecraft:air"},
-        {pos: [2, 1, 0], state: "minecraft:air"},
-        {pos: [2, 1, 1], state: "minecraft:air"},
-        {pos: [2, 1, 2], state: "computercraft:disk_drive{facing:north,state:full}", nbt: {Item: {Count: 1b, id: "computercraft:disk", tag: {Color: 1118481}}, id: "computercraft:disk_drive"}},
-        {pos: [2, 1, 3], state: "minecraft:air"},
-        {pos: [2, 1, 4], state: "minecraft:air"},
-        {pos: [3, 1, 0], state: "minecraft:air"},
-        {pos: [3, 1, 1], state: "minecraft:air"},
-        {pos: [3, 1, 2], state: "minecraft:air"},
-        {pos: [3, 1, 3], state: "minecraft:air"},
-        {pos: [3, 1, 4], state: "minecraft:air"},
-        {pos: [4, 1, 0], state: "minecraft:air"},
-        {pos: [4, 1, 1], state: "minecraft:air"},
-        {pos: [4, 1, 2], state: "minecraft:air"},
-        {pos: [4, 1, 3], state: "minecraft:air"},
-        {pos: [4, 1, 4], state: "minecraft:air"},
-        {pos: [0, 2, 0], state: "minecraft:air"},
-        {pos: [0, 2, 1], state: "minecraft:air"},
-        {pos: [0, 2, 2], state: "minecraft:air"},
-        {pos: [0, 2, 3], state: "minecraft:air"},
-        {pos: [0, 2, 4], state: "minecraft:air"},
-        {pos: [1, 2, 0], state: "minecraft:air"},
-        {pos: [1, 2, 1], state: "minecraft:air"},
-        {pos: [1, 2, 2], state: "minecraft:air"},
-        {pos: [1, 2, 3], state: "minecraft:air"},
-        {pos: [1, 2, 4], state: "minecraft:air"},
-        {pos: [2, 2, 0], state: "minecraft:air"},
-        {pos: [2, 2, 1], state: "minecraft:air"},
-        {pos: [2, 2, 2], state: "minecraft:air"},
-        {pos: [2, 2, 3], state: "minecraft:air"},
-        {pos: [2, 2, 4], state: "minecraft:air"},
-        {pos: [3, 2, 0], state: "minecraft:air"},
-        {pos: [3, 2, 1], state: "minecraft:air"},
-        {pos: [3, 2, 2], state: "minecraft:air"},
-        {pos: [3, 2, 3], state: "minecraft:air"},
-        {pos: [3, 2, 4], state: "minecraft:air"},
-        {pos: [4, 2, 0], state: "minecraft:air"},
-        {pos: [4, 2, 1], state: "minecraft:air"},
-        {pos: [4, 2, 2], state: "minecraft:air"},
-        {pos: [4, 2, 3], state: "minecraft:air"},
-        {pos: [4, 2, 4], state: "minecraft:air"},
-        {pos: [0, 3, 0], state: "minecraft:air"},
-        {pos: [0, 3, 1], state: "minecraft:air"},
-        {pos: [0, 3, 2], state: "minecraft:air"},
-        {pos: [0, 3, 3], state: "minecraft:air"},
-        {pos: [0, 3, 4], state: "minecraft:air"},
-        {pos: [1, 3, 0], state: "minecraft:air"},
-        {pos: [1, 3, 1], state: "minecraft:air"},
-        {pos: [1, 3, 2], state: "minecraft:air"},
-        {pos: [1, 3, 3], state: "minecraft:air"},
-        {pos: [1, 3, 4], state: "minecraft:air"},
-        {pos: [2, 3, 0], state: "minecraft:air"},
-        {pos: [2, 3, 1], state: "minecraft:air"},
-        {pos: [2, 3, 2], state: "minecraft:air"},
-        {pos: [2, 3, 3], state: "minecraft:air"},
-        {pos: [2, 3, 4], state: "minecraft:air"},
-        {pos: [3, 3, 0], state: "minecraft:air"},
-        {pos: [3, 3, 1], state: "minecraft:air"},
-        {pos: [3, 3, 2], state: "minecraft:air"},
-        {pos: [3, 3, 3], state: "minecraft:air"},
-        {pos: [3, 3, 4], state: "minecraft:air"},
-        {pos: [4, 3, 0], state: "minecraft:air"},
-        {pos: [4, 3, 1], state: "minecraft:air"},
-        {pos: [4, 3, 2], state: "minecraft:air"},
-        {pos: [4, 3, 3], state: "minecraft:air"},
-        {pos: [4, 3, 4], state: "minecraft:air"},
-        {pos: [0, 4, 0], state: "minecraft:air"},
-        {pos: [0, 4, 1], state: "minecraft:air"},
-        {pos: [0, 4, 2], state: "minecraft:air"},
-        {pos: [0, 4, 3], state: "minecraft:air"},
-        {pos: [0, 4, 4], state: "minecraft:air"},
-        {pos: [1, 4, 0], state: "minecraft:air"},
-        {pos: [1, 4, 1], state: "minecraft:air"},
-        {pos: [1, 4, 2], state: "minecraft:air"},
-        {pos: [1, 4, 3], state: "minecraft:air"},
-        {pos: [1, 4, 4], state: "minecraft:air"},
-        {pos: [2, 4, 0], state: "minecraft:air"},
-        {pos: [2, 4, 1], state: "minecraft:air"},
-        {pos: [2, 4, 2], state: "minecraft:air"},
-        {pos: [2, 4, 3], state: "minecraft:air"},
-        {pos: [2, 4, 4], state: "minecraft:air"},
-        {pos: [3, 4, 0], state: "minecraft:air"},
-        {pos: [3, 4, 1], state: "minecraft:air"},
-        {pos: [3, 4, 2], state: "minecraft:air"},
-        {pos: [3, 4, 3], state: "minecraft:air"},
-        {pos: [3, 4, 4], state: "minecraft:air"},
-        {pos: [4, 4, 0], state: "minecraft:air"},
-        {pos: [4, 4, 1], state: "minecraft:air"},
-        {pos: [4, 4, 2], state: "minecraft:air"},
-        {pos: [4, 4, 3], state: "minecraft:air"},
-        {pos: [4, 4, 4], state: "minecraft:air"}
+        {pos: [2, 1, 2], state: "computercraft:disk_drive{facing:north,state:full}", nbt: {Item: {Count: 1b, id: "computercraft:disk", tag: {Color: 1118481}}, id: "computercraft:disk_drive"}}
     ],
     entities: [],
     palette: [
         "minecraft:polished_andesite",
-        "minecraft:air",
         "computercraft:computer_advanced{facing:north,state:on}",
         "computercraft:disk_drive{facing:north,state:full}"
     ]

projects/common/src/testMod/resources/data/cctest/structures/disk_drive_test.data_fixers.snbt

@@ -27,111 +27,12 @@
         {pos: [4, 0, 2], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 3], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 4], state: "minecraft:polished_andesite"},
-        {pos: [0, 1, 0], state: "minecraft:air"},
-        {pos: [0, 1, 1], state: "minecraft:air"},
-        {pos: [0, 1, 2], state: "minecraft:air"},
-        {pos: [0, 1, 3], state: "minecraft:air"},
-        {pos: [0, 1, 4], state: "minecraft:air"},
-        {pos: [1, 1, 0], state: "minecraft:air"},
-        {pos: [1, 1, 1], state: "minecraft:air"},
         {pos: [1, 1, 2], state: "computercraft:disk_drive{facing:north,state:full}", nbt: {Item: {Count: 1b, id: "computercraft:disk", tag: {Color: 123456, DiskId: 123}}, id: "computercraft:disk_drive"}},
-        {pos: [1, 1, 3], state: "minecraft:air"},
-        {pos: [1, 1, 4], state: "minecraft:air"},
-        {pos: [2, 1, 0], state: "minecraft:air"},
-        {pos: [2, 1, 1], state: "minecraft:air"},
-        {pos: [2, 1, 2], state: "minecraft:air"},
-        {pos: [2, 1, 3], state: "minecraft:air"},
-        {pos: [2, 1, 4], state: "minecraft:air"},
-        {pos: [3, 1, 0], state: "minecraft:air"},
-        {pos: [3, 1, 1], state: "minecraft:air"},
-        {pos: [3, 1, 2], state: "computercraft:disk_drive{facing:north,state:full}", nbt: {Item: {Count: 1b, id: "computercraft:treasure_disk", tag: {Colour: 123456, SubPath: "demo", Title: "Demo disk"}}, id: "computercraft:disk_drive"}},
-        {pos: [3, 1, 3], state: "minecraft:air"},
-        {pos: [3, 1, 4], state: "minecraft:air"},
-        {pos: [4, 1, 0], state: "minecraft:air"},
-        {pos: [4, 1, 1], state: "minecraft:air"},
-        {pos: [4, 1, 2], state: "minecraft:air"},
-        {pos: [4, 1, 3], state: "minecraft:air"},
-        {pos: [4, 1, 4], state: "minecraft:air"},
-        {pos: [0, 2, 0], state: "minecraft:air"},
-        {pos: [0, 2, 1], state: "minecraft:air"},
-        {pos: [0, 2, 2], state: "minecraft:air"},
-        {pos: [0, 2, 3], state: "minecraft:air"},
-        {pos: [0, 2, 4], state: "minecraft:air"},
-        {pos: [1, 2, 0], state: "minecraft:air"},
-        {pos: [1, 2, 1], state: "minecraft:air"},
-        {pos: [1, 2, 2], state: "minecraft:air"},
-        {pos: [1, 2, 3], state: "minecraft:air"},
-        {pos: [1, 2, 4], state: "minecraft:air"},
-        {pos: [2, 2, 0], state: "minecraft:air"},
-        {pos: [2, 2, 1], state: "minecraft:air"},
-        {pos: [2, 2, 2], state: "minecraft:air"},
-        {pos: [2, 2, 3], state: "minecraft:air"},
-        {pos: [2, 2, 4], state: "minecraft:air"},
-        {pos: [3, 2, 0], state: "minecraft:air"},
-        {pos: [3, 2, 1], state: "minecraft:air"},
-        {pos: [3, 2, 2], state: "minecraft:air"},
-        {pos: [3, 2, 3], state: "minecraft:air"},
-        {pos: [3, 2, 4], state: "minecraft:air"},
-        {pos: [4, 2, 0], state: "minecraft:air"},
-        {pos: [4, 2, 1], state: "minecraft:air"},
-        {pos: [4, 2, 2], state: "minecraft:air"},
-        {pos: [4, 2, 3], state: "minecraft:air"},
-        {pos: [4, 2, 4], state: "minecraft:air"},
-        {pos: [0, 3, 0], state: "minecraft:air"},
-        {pos: [0, 3, 1], state: "minecraft:air"},
-        {pos: [0, 3, 2], state: "minecraft:air"},
-        {pos: [0, 3, 3], state: "minecraft:air"},
-        {pos: [0, 3, 4], state: "minecraft:air"},
-        {pos: [1, 3, 0], state: "minecraft:air"},
-        {pos: [1, 3, 1], state: "minecraft:air"},
-        {pos: [1, 3, 2], state: "minecraft:air"},
-        {pos: [1, 3, 3], state: "minecraft:air"},
-        {pos: [1, 3, 4], state: "minecraft:air"},
-        {pos: [2, 3, 0], state: "minecraft:air"},
-        {pos: [2, 3, 1], state: "minecraft:air"},
-        {pos: [2, 3, 2], state: "minecraft:air"},
-        {pos: [2, 3, 3], state: "minecraft:air"},
-        {pos: [2, 3, 4], state: "minecraft:air"},
-        {pos: [3, 3, 0], state: "minecraft:air"},
-        {pos: [3, 3, 1], state: "minecraft:air"},
-        {pos: [3, 3, 2], state: "minecraft:air"},
-        {pos: [3, 3, 3], state: "minecraft:air"},
-        {pos: [3, 3, 4], state: "minecraft:air"},
-        {pos: [4, 3, 0], state: "minecraft:air"},
-        {pos: [4, 3, 1], state: "minecraft:air"},
-        {pos: [4, 3, 2], state: "minecraft:air"},
-        {pos: [4, 3, 3], state: "minecraft:air"},
-        {pos: [4, 3, 4], state: "minecraft:air"},
-        {pos: [0, 4, 0], state: "minecraft:air"},
-        {pos: [0, 4, 1], state: "minecraft:air"},
-        {pos: [0, 4, 2], state: "minecraft:air"},
-        {pos: [0, 4, 3], state: "minecraft:air"},
-        {pos: [0, 4, 4], state: "minecraft:air"},
-        {pos: [1, 4, 0], state: "minecraft:air"},
-        {pos: [1, 4, 1], state: "minecraft:air"},
-        {pos: [1, 4, 2], state: "minecraft:air"},
-        {pos: [1, 4, 3], state: "minecraft:air"},
-        {pos: [1, 4, 4], state: "minecraft:air"},
-        {pos: [2, 4, 0], state: "minecraft:air"},
-        {pos: [2, 4, 1], state: "minecraft:air"},
-        {pos: [2, 4, 2], state: "minecraft:air"},
-        {pos: [2, 4, 3], state: "minecraft:air"},
-        {pos: [2, 4, 4], state: "minecraft:air"},
-        {pos: [3, 4, 0], state: "minecraft:air"},
-        {pos: [3, 4, 1], state: "minecraft:air"},
-        {pos: [3, 4, 2], state: "minecraft:air"},
-        {pos: [3, 4, 3], state: "minecraft:air"},
-        {pos: [3, 4, 4], state: "minecraft:air"},
-        {pos: [4, 4, 0], state: "minecraft:air"},
-        {pos: [4, 4, 1], state: "minecraft:air"},
-        {pos: [4, 4, 2], state: "minecraft:air"},
-        {pos: [4, 4, 3], state: "minecraft:air"},
-        {pos: [4, 4, 4], state: "minecraft:air"}
+        {pos: [3, 1, 2], state: "computercraft:disk_drive{facing:north,state:full}", nbt: {Item: {Count: 1b, id: "computercraft:treasure_disk", tag: {Colour: 123456, SubPath: "demo", Title: "Demo disk"}}, id: "computercraft:disk_drive"}}
     ],
     entities: [],
     palette: [
         "minecraft:polished_andesite",
-        "minecraft:air",
         "computercraft:disk_drive{facing:north,state:full}"
     ]
 }

projects/common/src/testMod/resources/data/cctest/structures/disk_drive_test.drops_contents.snbt

@@ -27,111 +27,11 @@
         {pos: [4, 0, 2], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 3], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 4], state: "minecraft:polished_andesite"},
-        {pos: [0, 1, 0], state: "minecraft:air"},
-        {pos: [0, 1, 1], state: "minecraft:air"},
-        {pos: [0, 1, 2], state: "minecraft:air"},
-        {pos: [0, 1, 3], state: "minecraft:air"},
-        {pos: [0, 1, 4], state: "minecraft:air"},
-        {pos: [1, 1, 0], state: "minecraft:air"},
-        {pos: [1, 1, 1], state: "minecraft:air"},
-        {pos: [1, 1, 2], state: "minecraft:air"},
-        {pos: [1, 1, 3], state: "minecraft:air"},
-        {pos: [1, 1, 4], state: "minecraft:air"},
-        {pos: [2, 1, 0], state: "minecraft:air"},
-        {pos: [2, 1, 1], state: "minecraft:air"},
-        {pos: [2, 1, 2], state: "computercraft:disk_drive{facing:north,state:full}", nbt: {CustomName: '{"text":"My Disk Drive"}', ForgeCaps: {}, Item: {Count: 1b, id: "computercraft:treasure_disk"}, id: "computercraft:disk_drive"}},
-        {pos: [2, 1, 3], state: "minecraft:air"},
-        {pos: [2, 1, 4], state: "minecraft:air"},
-        {pos: [3, 1, 0], state: "minecraft:air"},
-        {pos: [3, 1, 1], state: "minecraft:air"},
-        {pos: [3, 1, 2], state: "minecraft:air"},
-        {pos: [3, 1, 3], state: "minecraft:air"},
-        {pos: [3, 1, 4], state: "minecraft:air"},
-        {pos: [4, 1, 0], state: "minecraft:air"},
-        {pos: [4, 1, 1], state: "minecraft:air"},
-        {pos: [4, 1, 2], state: "minecraft:air"},
-        {pos: [4, 1, 3], state: "minecraft:air"},
-        {pos: [4, 1, 4], state: "minecraft:air"},
-        {pos: [0, 2, 0], state: "minecraft:air"},
-        {pos: [0, 2, 1], state: "minecraft:air"},
-        {pos: [0, 2, 2], state: "minecraft:air"},
-        {pos: [0, 2, 3], state: "minecraft:air"},
-        {pos: [0, 2, 4], state: "minecraft:air"},
-        {pos: [1, 2, 0], state: "minecraft:air"},
-        {pos: [1, 2, 1], state: "minecraft:air"},
-        {pos: [1, 2, 2], state: "minecraft:air"},
-        {pos: [1, 2, 3], state: "minecraft:air"},
-        {pos: [1, 2, 4], state: "minecraft:air"},
-        {pos: [2, 2, 0], state: "minecraft:air"},
-        {pos: [2, 2, 1], state: "minecraft:air"},
-        {pos: [2, 2, 2], state: "minecraft:air"},
-        {pos: [2, 2, 3], state: "minecraft:air"},
-        {pos: [2, 2, 4], state: "minecraft:air"},
-        {pos: [3, 2, 0], state: "minecraft:air"},
-        {pos: [3, 2, 1], state: "minecraft:air"},
-        {pos: [3, 2, 2], state: "minecraft:air"},
-        {pos: [3, 2, 3], state: "minecraft:air"},
-        {pos: [3, 2, 4], state: "minecraft:air"},
-        {pos: [4, 2, 0], state: "minecraft:air"},
-        {pos: [4, 2, 1], state: "minecraft:air"},
-        {pos: [4, 2, 2], state: "minecraft:air"},
-        {pos: [4, 2, 3], state: "minecraft:air"},
-        {pos: [4, 2, 4], state: "minecraft:air"},
-        {pos: [0, 3, 0], state: "minecraft:air"},
-        {pos: [0, 3, 1], state: "minecraft:air"},
-        {pos: [0, 3, 2], state: "minecraft:air"},
-        {pos: [0, 3, 3], state: "minecraft:air"},
-        {pos: [0, 3, 4], state: "minecraft:air"},
-        {pos: [1, 3, 0], state: "minecraft:air"},
-        {pos: [1, 3, 1], state: "minecraft:air"},
-        {pos: [1, 3, 2], state: "minecraft:air"},
-        {pos: [1, 3, 3], state: "minecraft:air"},
-        {pos: [1, 3, 4], state: "minecraft:air"},
-        {pos: [2, 3, 0], state: "minecraft:air"},
-        {pos: [2, 3, 1], state: "minecraft:air"},
-        {pos: [2, 3, 2], state: "minecraft:air"},
-        {pos: [2, 3, 3], state: "minecraft:air"},
-        {pos: [2, 3, 4], state: "minecraft:air"},
-        {pos: [3, 3, 0], state: "minecraft:air"},
-        {pos: [3, 3, 1], state: "minecraft:air"},
-        {pos: [3, 3, 2], state: "minecraft:air"},
-        {pos: [3, 3, 3], state: "minecraft:air"},
-        {pos: [3, 3, 4], state: "minecraft:air"},
-        {pos: [4, 3, 0], state: "minecraft:air"},
-        {pos: [4, 3, 1], state: "minecraft:air"},
-        {pos: [4, 3, 2], state: "minecraft:air"},
-        {pos: [4, 3, 3], state: "minecraft:air"},
-        {pos: [4, 3, 4], state: "minecraft:air"},
-        {pos: [0, 4, 0], state: "minecraft:air"},
-        {pos: [0, 4, 1], state: "minecraft:air"},
-        {pos: [0, 4, 2], state: "minecraft:air"},
-        {pos: [0, 4, 3], state: "minecraft:air"},
-        {pos: [0, 4, 4], state: "minecraft:air"},
-        {pos: [1, 4, 0], state: "minecraft:air"},
-        {pos: [1, 4, 1], state: "minecraft:air"},
-        {pos: [1, 4, 2], state: "minecraft:air"},
-        {pos: [1, 4, 3], state: "minecraft:air"},
-        {pos: [1, 4, 4], state: "minecraft:air"},
-        {pos: [2, 4, 0], state: "minecraft:air"},
-        {pos: [2, 4, 1], state: "minecraft:air"},
-        {pos: [2, 4, 2], state: "minecraft:air"},
-        {pos: [2, 4, 3], state: "minecraft:air"},
-        {pos: [2, 4, 4], state: "minecraft:air"},
-        {pos: [3, 4, 0], state: "minecraft:air"},
-        {pos: [3, 4, 1], state: "minecraft:air"},
-        {pos: [3, 4, 2], state: "minecraft:air"},
-        {pos: [3, 4, 3], state: "minecraft:air"},
-        {pos: [3, 4, 4], state: "minecraft:air"},
-        {pos: [4, 4, 0], state: "minecraft:air"},
-        {pos: [4, 4, 1], state: "minecraft:air"},
-        {pos: [4, 4, 2], state: "minecraft:air"},
-        {pos: [4, 4, 3], state: "minecraft:air"},
-        {pos: [4, 4, 4], state: "minecraft:air"}
+        {pos: [2, 1, 2], state: "computercraft:disk_drive{facing:north,state:full}", nbt: {CustomName: '{"text":"My Disk Drive"}', ForgeCaps: {}, Item: {Count: 1b, id: "computercraft:treasure_disk"}, id: "computercraft:disk_drive"}}
     ],
     entities: [],
     palette: [
         "minecraft:polished_andesite",
-        "minecraft:air",
         "computercraft:disk_drive{facing:north,state:full}"
     ]
 }

projects/common/src/testMod/resources/data/cctest/structures/disk_drive_test.ejects_disk.snbt

@@ -27,112 +27,27 @@
         {pos: [4, 0, 2], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 3], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 4], state: "minecraft:polished_andesite"},
-        {pos: [0, 1, 0], state: "minecraft:air"},
-        {pos: [0, 1, 1], state: "minecraft:air"},
-        {pos: [0, 1, 2], state: "minecraft:air"},
-        {pos: [0, 1, 3], state: "minecraft:air"},
-        {pos: [0, 1, 4], state: "minecraft:air"},
-        {pos: [1, 1, 0], state: "minecraft:air"},
         {pos: [1, 1, 1], state: "minecraft:white_stained_glass"},
         {pos: [1, 1, 2], state: "minecraft:white_stained_glass"},
         {pos: [1, 1, 3], state: "minecraft:white_stained_glass"},
-        {pos: [1, 1, 4], state: "minecraft:air"},
-        {pos: [2, 1, 0], state: "minecraft:air"},
         {pos: [2, 1, 1], state: "computercraft:disk_drive{facing:south,state:full}", nbt: {Item: {Count: 1b, id: "minecraft:music_disc_13"}, id: "computercraft:disk_drive"}},
-        {pos: [2, 1, 2], state: "minecraft:air"},
         {pos: [2, 1, 3], state: "minecraft:white_stained_glass"},
-        {pos: [2, 1, 4], state: "minecraft:air"},
-        {pos: [3, 1, 0], state: "minecraft:air"},
         {pos: [3, 1, 1], state: "computercraft:computer_advanced{facing:north,state:blinking}", nbt: {ComputerId: 1, Label: "disk_drive_test.ejects_disk", On: 1b, id: "computercraft:computer_advanced"}},
         {pos: [3, 1, 2], state: "minecraft:white_stained_glass"},
         {pos: [3, 1, 3], state: "minecraft:white_stained_glass"},
-        {pos: [3, 1, 4], state: "minecraft:air"},
-        {pos: [4, 1, 0], state: "minecraft:air"},
-        {pos: [4, 1, 1], state: "minecraft:air"},
-        {pos: [4, 1, 2], state: "minecraft:air"},
-        {pos: [4, 1, 3], state: "minecraft:air"},
-        {pos: [4, 1, 4], state: "minecraft:air"},
-        {pos: [0, 2, 0], state: "minecraft:air"},
-        {pos: [0, 2, 1], state: "minecraft:air"},
-        {pos: [0, 2, 2], state: "minecraft:air"},
-        {pos: [0, 2, 3], state: "minecraft:air"},
-        {pos: [0, 2, 4], state: "minecraft:air"},
-        {pos: [1, 2, 0], state: "minecraft:air"},
         {pos: [1, 2, 1], state: "minecraft:white_stained_glass"},
         {pos: [1, 2, 2], state: "minecraft:white_stained_glass"},
         {pos: [1, 2, 3], state: "minecraft:white_stained_glass"},
-        {pos: [1, 2, 4], state: "minecraft:air"},
-        {pos: [2, 2, 0], state: "minecraft:air"},
         {pos: [2, 2, 1], state: "minecraft:white_stained_glass"},
-        {pos: [2, 2, 2], state: "minecraft:air"},
         {pos: [2, 2, 3], state: "minecraft:white_stained_glass"},
-        {pos: [2, 2, 4], state: "minecraft:air"},
-        {pos: [3, 2, 0], state: "minecraft:air"},
         {pos: [3, 2, 1], state: "minecraft:white_stained_glass"},
         {pos: [3, 2, 2], state: "minecraft:white_stained_glass"},
-        {pos: [3, 2, 3], state: "minecraft:white_stained_glass"},
-        {pos: [3, 2, 4], state: "minecraft:air"},
-        {pos: [4, 2, 0], state: "minecraft:air"},
-        {pos: [4, 2, 1], state: "minecraft:air"},
-        {pos: [4, 2, 2], state: "minecraft:air"},
-        {pos: [4, 2, 3], state: "minecraft:air"},
-        {pos: [4, 2, 4], state: "minecraft:air"},
-        {pos: [0, 3, 0], state: "minecraft:air"},
-        {pos: [0, 3, 1], state: "minecraft:air"},
-        {pos: [0, 3, 2], state: "minecraft:air"},
-        {pos: [0, 3, 3], state: "minecraft:air"},
-        {pos: [0, 3, 4], state: "minecraft:air"},
-        {pos: [1, 3, 0], state: "minecraft:air"},
-        {pos: [1, 3, 1], state: "minecraft:air"},
-        {pos: [1, 3, 2], state: "minecraft:air"},
-        {pos: [1, 3, 3], state: "minecraft:air"},
-        {pos: [1, 3, 4], state: "minecraft:air"},
-        {pos: [2, 3, 0], state: "minecraft:air"},
-        {pos: [2, 3, 1], state: "minecraft:air"},
-        {pos: [2, 3, 2], state: "minecraft:air"},
-        {pos: [2, 3, 3], state: "minecraft:air"},
-        {pos: [2, 3, 4], state: "minecraft:air"},
-        {pos: [3, 3, 0], state: "minecraft:air"},
-        {pos: [3, 3, 1], state: "minecraft:air"},
-        {pos: [3, 3, 2], state: "minecraft:air"},
-        {pos: [3, 3, 3], state: "minecraft:air"},
-        {pos: [3, 3, 4], state: "minecraft:air"},
-        {pos: [4, 3, 0], state: "minecraft:air"},
-        {pos: [4, 3, 1], state: "minecraft:air"},
-        {pos: [4, 3, 2], state: "minecraft:air"},
-        {pos: [4, 3, 3], state: "minecraft:air"},
-        {pos: [4, 3, 4], state: "minecraft:air"},
-        {pos: [0, 4, 0], state: "minecraft:air"},
-        {pos: [0, 4, 1], state: "minecraft:air"},
-        {pos: [0, 4, 2], state: "minecraft:air"},
-        {pos: [0, 4, 3], state: "minecraft:air"},
-        {pos: [0, 4, 4], state: "minecraft:air"},
-        {pos: [1, 4, 0], state: "minecraft:air"},
-        {pos: [1, 4, 1], state: "minecraft:air"},
-        {pos: [1, 4, 2], state: "minecraft:air"},
-        {pos: [1, 4, 3], state: "minecraft:air"},
-        {pos: [1, 4, 4], state: "minecraft:air"},
-        {pos: [2, 4, 0], state: "minecraft:air"},
-        {pos: [2, 4, 1], state: "minecraft:air"},
-        {pos: [2, 4, 2], state: "minecraft:air"},
-        {pos: [2, 4, 3], state: "minecraft:air"},
-        {pos: [2, 4, 4], state: "minecraft:air"},
-        {pos: [3, 4, 0], state: "minecraft:air"},
-        {pos: [3, 4, 1], state: "minecraft:air"},
-        {pos: [3, 4, 2], state: "minecraft:air"},
-        {pos: [3, 4, 3], state: "minecraft:air"},
-        {pos: [3, 4, 4], state: "minecraft:air"},
-        {pos: [4, 4, 0], state: "minecraft:air"},
-        {pos: [4, 4, 1], state: "minecraft:air"},
-        {pos: [4, 4, 2], state: "minecraft:air"},
-        {pos: [4, 4, 3], state: "minecraft:air"},
-        {pos: [4, 4, 4], state: "minecraft:air"}
+        {pos: [3, 2, 3], state: "minecraft:white_stained_glass"}
     ],
     entities: [],
     palette: [
         "minecraft:polished_andesite",
         "minecraft:white_stained_glass",
-        "minecraft:air",
         "computercraft:disk_drive{facing:south,state:full}",
         "computercraft:computer_advanced{facing:north,state:blinking}"
     ]

projects/common/src/testMod/resources/data/cctest/structures/disk_drive_test.queues_event.snbt

@@ -27,111 +27,12 @@
         {pos: [4, 0, 2], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 3], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 4], state: "minecraft:polished_andesite"},
-        {pos: [0, 1, 0], state: "minecraft:air"},
-        {pos: [0, 1, 1], state: "minecraft:air"},
-        {pos: [0, 1, 2], state: "minecraft:air"},
-        {pos: [0, 1, 3], state: "minecraft:air"},
-        {pos: [0, 1, 4], state: "minecraft:air"},
-        {pos: [1, 1, 0], state: "minecraft:air"},
-        {pos: [1, 1, 1], state: "minecraft:air"},
         {pos: [1, 1, 2], state: "computercraft:disk_drive{facing:north,state:full}", nbt: {id: "computercraft:disk_drive"}},
-        {pos: [1, 1, 3], state: "minecraft:air"},
-        {pos: [1, 1, 4], state: "minecraft:air"},
-        {pos: [2, 1, 0], state: "minecraft:air"},
-        {pos: [2, 1, 1], state: "minecraft:air"},
-        {pos: [2, 1, 2], state: "computercraft:computer_advanced{facing:north,state:blinking}", nbt: {ComputerId: 1, Label: "disk_drive_test.queues_event", On: 1b, id: "computercraft:computer_advanced"}},
-        {pos: [2, 1, 3], state: "minecraft:air"},
-        {pos: [2, 1, 4], state: "minecraft:air"},
-        {pos: [3, 1, 0], state: "minecraft:air"},
-        {pos: [3, 1, 1], state: "minecraft:air"},
-        {pos: [3, 1, 2], state: "minecraft:air"},
-        {pos: [3, 1, 3], state: "minecraft:air"},
-        {pos: [3, 1, 4], state: "minecraft:air"},
-        {pos: [4, 1, 0], state: "minecraft:air"},
-        {pos: [4, 1, 1], state: "minecraft:air"},
-        {pos: [4, 1, 2], state: "minecraft:air"},
-        {pos: [4, 1, 3], state: "minecraft:air"},
-        {pos: [4, 1, 4], state: "minecraft:air"},
-        {pos: [0, 2, 0], state: "minecraft:air"},
-        {pos: [0, 2, 1], state: "minecraft:air"},
-        {pos: [0, 2, 2], state: "minecraft:air"},
-        {pos: [0, 2, 3], state: "minecraft:air"},
-        {pos: [0, 2, 4], state: "minecraft:air"},
-        {pos: [1, 2, 0], state: "minecraft:air"},
-        {pos: [1, 2, 1], state: "minecraft:air"},
-        {pos: [1, 2, 2], state: "minecraft:air"},
-        {pos: [1, 2, 3], state: "minecraft:air"},
-        {pos: [1, 2, 4], state: "minecraft:air"},
-        {pos: [2, 2, 0], state: "minecraft:air"},
-        {pos: [2, 2, 1], state: "minecraft:air"},
-        {pos: [2, 2, 2], state: "minecraft:air"},
-        {pos: [2, 2, 3], state: "minecraft:air"},
-        {pos: [2, 2, 4], state: "minecraft:air"},
-        {pos: [3, 2, 0], state: "minecraft:air"},
-        {pos: [3, 2, 1], state: "minecraft:air"},
-        {pos: [3, 2, 2], state: "minecraft:air"},
-        {pos: [3, 2, 3], state: "minecraft:air"},
-        {pos: [3, 2, 4], state: "minecraft:air"},
-        {pos: [4, 2, 0], state: "minecraft:air"},
-        {pos: [4, 2, 1], state: "minecraft:air"},
-        {pos: [4, 2, 2], state: "minecraft:air"},
-        {pos: [4, 2, 3], state: "minecraft:air"},
-        {pos: [4, 2, 4], state: "minecraft:air"},
-        {pos: [0, 3, 0], state: "minecraft:air"},
-        {pos: [0, 3, 1], state: "minecraft:air"},
-        {pos: [0, 3, 2], state: "minecraft:air"},
-        {pos: [0, 3, 3], state: "minecraft:air"},
-        {pos: [0, 3, 4], state: "minecraft:air"},
-        {pos: [1, 3, 0], state: "minecraft:air"},
-        {pos: [1, 3, 1], state: "minecraft:air"},
-        {pos: [1, 3, 2], state: "minecraft:air"},
-        {pos: [1, 3, 3], state: "minecraft:air"},
-        {pos: [1, 3, 4], state: "minecraft:air"},
-        {pos: [2, 3, 0], state: "minecraft:air"},
-        {pos: [2, 3, 1], state: "minecraft:air"},
-        {pos: [2, 3, 2], state: "minecraft:air"},
-        {pos: [2, 3, 3], state: "minecraft:air"},
-        {pos: [2, 3, 4], state: "minecraft:air"},
-        {pos: [3, 3, 0], state: "minecraft:air"},
-        {pos: [3, 3, 1], state: "minecraft:air"},
-        {pos: [3, 3, 2], state: "minecraft:air"},
-        {pos: [3, 3, 3], state: "minecraft:air"},
-        {pos: [3, 3, 4], state: "minecraft:air"},
-        {pos: [4, 3, 0], state: "minecraft:air"},
-        {pos: [4, 3, 1], state: "minecraft:air"},
-        {pos: [4, 3, 2], state: "minecraft:air"},
-        {pos: [4, 3, 3], state: "minecraft:air"},
-        {pos: [4, 3, 4], state: "minecraft:air"},
-        {pos: [0, 4, 0], state: "minecraft:air"},
-        {pos: [0, 4, 1], state: "minecraft:air"},
-        {pos: [0, 4, 2], state: "minecraft:air"},
-        {pos: [0, 4, 3], state: "minecraft:air"},
-        {pos: [0, 4, 4], state: "minecraft:air"},
-        {pos: [1, 4, 0], state: "minecraft:air"},
-        {pos: [1, 4, 1], state: "minecraft:air"},
-        {pos: [1, 4, 2], state: "minecraft:air"},
-        {pos: [1, 4, 3], state: "minecraft:air"},
-        {pos: [1, 4, 4], state: "minecraft:air"},
-        {pos: [2, 4, 0], state: "minecraft:air"},
-        {pos: [2, 4, 1], state: "minecraft:air"},
-        {pos: [2, 4, 2], state: "minecraft:air"},
-        {pos: [2, 4, 3], state: "minecraft:air"},
-        {pos: [2, 4, 4], state: "minecraft:air"},
-        {pos: [3, 4, 0], state: "minecraft:air"},
-        {pos: [3, 4, 1], state: "minecraft:air"},
-        {pos: [3, 4, 2], state: "minecraft:air"},
-        {pos: [3, 4, 3], state: "minecraft:air"},
-        {pos: [3, 4, 4], state: "minecraft:air"},
-        {pos: [4, 4, 0], state: "minecraft:air"},
-        {pos: [4, 4, 1], state: "minecraft:air"},
-        {pos: [4, 4, 2], state: "minecraft:air"},
-        {pos: [4, 4, 3], state: "minecraft:air"},
-        {pos: [4, 4, 4], state: "minecraft:air"}
+        {pos: [2, 1, 2], state: "computercraft:computer_advanced{facing:north,state:blinking}", nbt: {ComputerId: 1, Label: "disk_drive_test.queues_event", On: 1b, id: "computercraft:computer_advanced"}}
     ],
     entities: [],
     palette: [
         "minecraft:polished_andesite",
-        "minecraft:air",
         "computercraft:disk_drive{facing:north,state:full}",
         "computercraft:computer_advanced{facing:north,state:blinking}"
     ]

projects/common/src/testMod/resources/data/cctest/structures/inventory_test.checks_valid_item.snbt

@@ -27,111 +27,17 @@
         {pos: [4, 0, 2], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 3], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 4], state: "minecraft:polished_andesite"},
-        {pos: [0, 1, 0], state: "minecraft:air"},
-        {pos: [0, 1, 1], state: "minecraft:air"},
-        {pos: [0, 1, 2], state: "minecraft:air"},
-        {pos: [0, 1, 3], state: "minecraft:air"},
-        {pos: [0, 1, 4], state: "minecraft:air"},
-        {pos: [1, 1, 0], state: "minecraft:air"},
-        {pos: [1, 1, 1], state: "minecraft:air"},
         {pos: [1, 1, 2], state: "minecraft:shulker_box{facing:up}", nbt: {id: "minecraft:shulker_box"}},
         {pos: [1, 1, 3], state: "computercraft:wired_modem_full{modem:false,peripheral:true}", nbt: {PeripheralAccess: 1b, PeripheralId2: 0, PeripheralType2: "minecraft:shulker_box", id: "computercraft:wired_modem_full"}},
-        {pos: [1, 1, 4], state: "minecraft:air"},
-        {pos: [2, 1, 0], state: "minecraft:air"},
         {pos: [2, 1, 1], state: "computercraft:computer_advanced{facing:north,state:on}", nbt: {ComputerId: 1, Label: "inventory_test.checks_valid_item", On: 1b, id: "computercraft:computer_advanced"}},
         {pos: [2, 1, 2], state: "computercraft:cable{cable:true,down:false,east:false,modem:north_off,north:true,south:true,up:false,waterlogged:false,west:false}", nbt: {PeripheralAccess: 0b, id: "computercraft:cable"}},
         {pos: [2, 1, 3], state: "computercraft:cable{cable:true,down:false,east:true,modem:none,north:true,south:false,up:false,waterlogged:false,west:true}", nbt: {PeripheralAccess: 0b, id: "computercraft:cable"}},
-        {pos: [2, 1, 4], state: "minecraft:air"},
-        {pos: [3, 1, 0], state: "minecraft:air"},
-        {pos: [3, 1, 1], state: "minecraft:air"},
         {pos: [3, 1, 2], state: "minecraft:barrel{facing:up,open:false}", nbt: {Items: [{Count: 1b, Slot: 0b, id: "minecraft:shulker_box"}], id: "minecraft:barrel"}},
-        {pos: [3, 1, 3], state: "computercraft:wired_modem_full{modem:false,peripheral:true}", nbt: {PeripheralAccess: 1b, PeripheralId2: 0, PeripheralType2: "minecraft:barrel", id: "computercraft:wired_modem_full"}},
-        {pos: [3, 1, 4], state: "minecraft:air"},
-        {pos: [4, 1, 0], state: "minecraft:air"},
-        {pos: [4, 1, 1], state: "minecraft:air"},
-        {pos: [4, 1, 2], state: "minecraft:air"},
-        {pos: [4, 1, 3], state: "minecraft:air"},
-        {pos: [4, 1, 4], state: "minecraft:air"},
-        {pos: [0, 2, 0], state: "minecraft:air"},
-        {pos: [0, 2, 1], state: "minecraft:air"},
-        {pos: [0, 2, 2], state: "minecraft:air"},
-        {pos: [0, 2, 3], state: "minecraft:air"},
-        {pos: [0, 2, 4], state: "minecraft:air"},
-        {pos: [1, 2, 0], state: "minecraft:air"},
-        {pos: [1, 2, 1], state: "minecraft:air"},
-        {pos: [1, 2, 2], state: "minecraft:air"},
-        {pos: [1, 2, 3], state: "minecraft:air"},
-        {pos: [1, 2, 4], state: "minecraft:air"},
-        {pos: [2, 2, 0], state: "minecraft:air"},
-        {pos: [2, 2, 1], state: "minecraft:air"},
-        {pos: [2, 2, 2], state: "minecraft:air"},
-        {pos: [2, 2, 3], state: "minecraft:air"},
-        {pos: [2, 2, 4], state: "minecraft:air"},
-        {pos: [3, 2, 0], state: "minecraft:air"},
-        {pos: [3, 2, 1], state: "minecraft:air"},
-        {pos: [3, 2, 2], state: "minecraft:air"},
-        {pos: [3, 2, 3], state: "minecraft:air"},
-        {pos: [3, 2, 4], state: "minecraft:air"},
-        {pos: [4, 2, 0], state: "minecraft:air"},
-        {pos: [4, 2, 1], state: "minecraft:air"},
-        {pos: [4, 2, 2], state: "minecraft:air"},
-        {pos: [4, 2, 3], state: "minecraft:air"},
-        {pos: [4, 2, 4], state: "minecraft:air"},
-        {pos: [0, 3, 0], state: "minecraft:air"},
-        {pos: [0, 3, 1], state: "minecraft:air"},
-        {pos: [0, 3, 2], state: "minecraft:air"},
-        {pos: [0, 3, 3], state: "minecraft:air"},
-        {pos: [0, 3, 4], state: "minecraft:air"},
-        {pos: [1, 3, 0], state: "minecraft:air"},
-        {pos: [1, 3, 1], state: "minecraft:air"},
-        {pos: [1, 3, 2], state: "minecraft:air"},
-        {pos: [1, 3, 3], state: "minecraft:air"},
-        {pos: [1, 3, 4], state: "minecraft:air"},
-        {pos: [2, 3, 0], state: "minecraft:air"},
-        {pos: [2, 3, 1], state: "minecraft:air"},
-        {pos: [2, 3, 2], state: "minecraft:air"},
-        {pos: [2, 3, 3], state: "minecraft:air"},
-        {pos: [2, 3, 4], state: "minecraft:air"},
-        {pos: [3, 3, 0], state: "minecraft:air"},
-        {pos: [3, 3, 1], state: "minecraft:air"},
-        {pos: [3, 3, 2], state: "minecraft:air"},
-        {pos: [3, 3, 3], state: "minecraft:air"},
-        {pos: [3, 3, 4], state: "minecraft:air"},
-        {pos: [4, 3, 0], state: "minecraft:air"},
-        {pos: [4, 3, 1], state: "minecraft:air"},
-        {pos: [4, 3, 2], state: "minecraft:air"},
-        {pos: [4, 3, 3], state: "minecraft:air"},
-        {pos: [4, 3, 4], state: "minecraft:air"},
-        {pos: [0, 4, 0], state: "minecraft:air"},
-        {pos: [0, 4, 1], state: "minecraft:air"},
-        {pos: [0, 4, 2], state: "minecraft:air"},
-        {pos: [0, 4, 3], state: "minecraft:air"},
-        {pos: [0, 4, 4], state: "minecraft:air"},
-        {pos: [1, 4, 0], state: "minecraft:air"},
-        {pos: [1, 4, 1], state: "minecraft:air"},
-        {pos: [1, 4, 2], state: "minecraft:air"},
-        {pos: [1, 4, 3], state: "minecraft:air"},
-        {pos: [1, 4, 4], state: "minecraft:air"},
-        {pos: [2, 4, 0], state: "minecraft:air"},
-        {pos: [2, 4, 1], state: "minecraft:air"},
-        {pos: [2, 4, 2], state: "minecraft:air"},
-        {pos: [2, 4, 3], state: "minecraft:air"},
-        {pos: [2, 4, 4], state: "minecraft:air"},
-        {pos: [3, 4, 0], state: "minecraft:air"},
-        {pos: [3, 4, 1], state: "minecraft:air"},
-        {pos: [3, 4, 2], state: "minecraft:air"},
-        {pos: [3, 4, 3], state: "minecraft:air"},
-        {pos: [3, 4, 4], state: "minecraft:air"},
-        {pos: [4, 4, 0], state: "minecraft:air"},
-        {pos: [4, 4, 1], state: "minecraft:air"},
-        {pos: [4, 4, 2], state: "minecraft:air"},
-        {pos: [4, 4, 3], state: "minecraft:air"},
-        {pos: [4, 4, 4], state: "minecraft:air"}
+        {pos: [3, 1, 3], state: "computercraft:wired_modem_full{modem:false,peripheral:true}", nbt: {PeripheralAccess: 1b, PeripheralId2: 0, PeripheralType2: "minecraft:barrel", id: "computercraft:wired_modem_full"}}
     ],
     entities: [],
     palette: [
         "minecraft:polished_andesite",
-        "minecraft:air",
         "minecraft:shulker_box{facing:up}",
         "computercraft:wired_modem_full{modem:false,peripheral:true}",
         "computercraft:computer_advanced{facing:north,state:on}",

projects/common/src/testMod/resources/data/cctest/structures/inventory_test.double_chest_size.snbt

@@ -27,111 +27,15 @@
         {pos: [4, 0, 2], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 3], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 4], state: "minecraft:polished_andesite"},
-        {pos: [0, 1, 0], state: "minecraft:air"},
-        {pos: [0, 1, 1], state: "minecraft:air"},
         {pos: [0, 1, 2], state: "minecraft:chest{facing:north,type:left,waterlogged:false}", nbt: {Items: [], id: "minecraft:chest"}},
-        {pos: [0, 1, 3], state: "minecraft:air"},
-        {pos: [0, 1, 4], state: "minecraft:air"},
-        {pos: [1, 1, 0], state: "minecraft:air"},
-        {pos: [1, 1, 1], state: "minecraft:air"},
         {pos: [1, 1, 2], state: "minecraft:chest{facing:north,type:right,waterlogged:false}", nbt: {Items: [{Count: 64b, Slot: 0b, id: "minecraft:polished_andesite"}, {Count: 64b, Slot: 1b, id: "minecraft:polished_andesite"}, {Count: 64b, Slot: 2b, id: "minecraft:polished_andesite"}, {Count: 64b, Slot: 3b, id: "minecraft:polished_andesite"}, {Count: 64b, Slot: 4b, id: "minecraft:polished_andesite"}, {Count: 64b, Slot: 5b, id: "minecraft:polished_andesite"}, {Count: 64b, Slot: 6b, id: "minecraft:polished_andesite"}, {Count: 64b, Slot: 7b, id: "minecraft:polished_andesite"}, {Count: 64b, Slot: 8b, id: "minecraft:polished_andesite"}, {Count: 64b, Slot: 9b, id: "minecraft:polished_andesite"}, {Count: 64b, Slot: 10b, id: "minecraft:polished_andesite"}, {Count: 64b, Slot: 11b, id: "minecraft:polished_andesite"}, {Count: 64b, Slot: 12b, id: "minecraft:polished_andesite"}, {Count: 64b, Slot: 13b, id: "minecraft:polished_andesite"}, {Count: 64b, Slot: 14b, id: "minecraft:polished_andesite"}, {Count: 64b, Slot: 15b, id: "minecraft:polished_andesite"}, {Count: 64b, Slot: 16b, id: "minecraft:polished_andesite"}, {Count: 64b, Slot: 17b, id: "minecraft:polished_andesite"}, {Count: 64b, Slot: 18b, id: "minecraft:polished_andesite"}, {Count: 64b, Slot: 19b, id: "minecraft:polished_andesite"}, {Count: 64b, Slot: 20b, id: "minecraft:polished_andesite"}, {Count: 64b, Slot: 21b, id: "minecraft:polished_andesite"}, {Count: 64b, Slot: 22b, id: "minecraft:polished_andesite"}, {Count: 64b, Slot: 23b, id: "minecraft:polished_andesite"}, {Count: 64b, Slot: 24b, id: "minecraft:polished_andesite"}, {Count: 64b, Slot: 25b, id: "minecraft:polished_andesite"}, {Count: 64b, Slot: 26b, id: "minecraft:polished_andesite"}], id: "minecraft:chest"}},
-        {pos: [1, 1, 3], state: "minecraft:air"},
-        {pos: [1, 1, 4], state: "minecraft:air"},
-        {pos: [2, 1, 0], state: "minecraft:air"},
-        {pos: [2, 1, 1], state: "minecraft:air"},
         {pos: [2, 1, 2], state: "computercraft:computer_advanced{facing:north,state:on}", nbt: {ComputerId: 1, Label: "inventory_test.double_chest_size", On: 1b, id: "computercraft:computer_advanced"}},
-        {pos: [2, 1, 3], state: "minecraft:air"},
-        {pos: [2, 1, 4], state: "minecraft:air"},
-        {pos: [3, 1, 0], state: "minecraft:air"},
-        {pos: [3, 1, 1], state: "minecraft:air"},
         {pos: [3, 1, 2], state: "minecraft:chest{facing:north,type:left,waterlogged:false}", nbt: {Items: [], id: "minecraft:chest"}},
-        {pos: [3, 1, 3], state: "minecraft:air"},
-        {pos: [3, 1, 4], state: "minecraft:air"},
-        {pos: [4, 1, 0], state: "minecraft:air"},
-        {pos: [4, 1, 1], state: "minecraft:air"},
-        {pos: [4, 1, 2], state: "minecraft:chest{facing:north,type:right,waterlogged:false}", nbt: {Items: [{Count: 32b, Slot: 0b, id: "minecraft:dirt"}], id: "minecraft:chest"}},
-        {pos: [4, 1, 3], state: "minecraft:air"},
-        {pos: [4, 1, 4], state: "minecraft:air"},
-        {pos: [0, 2, 0], state: "minecraft:air"},
-        {pos: [0, 2, 1], state: "minecraft:air"},
-        {pos: [0, 2, 2], state: "minecraft:air"},
-        {pos: [0, 2, 3], state: "minecraft:air"},
-        {pos: [0, 2, 4], state: "minecraft:air"},
-        {pos: [1, 2, 0], state: "minecraft:air"},
-        {pos: [1, 2, 1], state: "minecraft:air"},
-        {pos: [1, 2, 2], state: "minecraft:air"},
-        {pos: [1, 2, 3], state: "minecraft:air"},
-        {pos: [1, 2, 4], state: "minecraft:air"},
-        {pos: [2, 2, 0], state: "minecraft:air"},
-        {pos: [2, 2, 1], state: "minecraft:air"},
-        {pos: [2, 2, 2], state: "minecraft:air"},
-        {pos: [2, 2, 3], state: "minecraft:air"},
-        {pos: [2, 2, 4], state: "minecraft:air"},
-        {pos: [3, 2, 0], state: "minecraft:air"},
-        {pos: [3, 2, 1], state: "minecraft:air"},
-        {pos: [3, 2, 2], state: "minecraft:air"},
-        {pos: [3, 2, 3], state: "minecraft:air"},
-        {pos: [3, 2, 4], state: "minecraft:air"},
-        {pos: [4, 2, 0], state: "minecraft:air"},
-        {pos: [4, 2, 1], state: "minecraft:air"},
-        {pos: [4, 2, 2], state: "minecraft:air"},
-        {pos: [4, 2, 3], state: "minecraft:air"},
-        {pos: [4, 2, 4], state: "minecraft:air"},
-        {pos: [0, 3, 0], state: "minecraft:air"},
-        {pos: [0, 3, 1], state: "minecraft:air"},
-        {pos: [0, 3, 2], state: "minecraft:air"},
-        {pos: [0, 3, 3], state: "minecraft:air"},
-        {pos: [0, 3, 4], state: "minecraft:air"},
-        {pos: [1, 3, 0], state: "minecraft:air"},
-        {pos: [1, 3, 1], state: "minecraft:air"},
-        {pos: [1, 3, 2], state: "minecraft:air"},
-        {pos: [1, 3, 3], state: "minecraft:air"},
-        {pos: [1, 3, 4], state: "minecraft:air"},
-        {pos: [2, 3, 0], state: "minecraft:air"},
-        {pos: [2, 3, 1], state: "minecraft:air"},
-        {pos: [2, 3, 2], state: "minecraft:air"},
-        {pos: [2, 3, 3], state: "minecraft:air"},
-        {pos: [2, 3, 4], state: "minecraft:air"},
-        {pos: [3, 3, 0], state: "minecraft:air"},
-        {pos: [3, 3, 1], state: "minecraft:air"},
-        {pos: [3, 3, 2], state: "minecraft:air"},
-        {pos: [3, 3, 3], state: "minecraft:air"},
-        {pos: [3, 3, 4], state: "minecraft:air"},
-        {pos: [4, 3, 0], state: "minecraft:air"},
-        {pos: [4, 3, 1], state: "minecraft:air"},
-        {pos: [4, 3, 2], state: "minecraft:air"},
-        {pos: [4, 3, 3], state: "minecraft:air"},
-        {pos: [4, 3, 4], state: "minecraft:air"},
-        {pos: [0, 4, 0], state: "minecraft:air"},
-        {pos: [0, 4, 1], state: "minecraft:air"},
-        {pos: [0, 4, 2], state: "minecraft:air"},
-        {pos: [0, 4, 3], state: "minecraft:air"},
-        {pos: [0, 4, 4], state: "minecraft:air"},
-        {pos: [1, 4, 0], state: "minecraft:air"},
-        {pos: [1, 4, 1], state: "minecraft:air"},
-        {pos: [1, 4, 2], state: "minecraft:air"},
-        {pos: [1, 4, 3], state: "minecraft:air"},
-        {pos: [1, 4, 4], state: "minecraft:air"},
-        {pos: [2, 4, 0], state: "minecraft:air"},
-        {pos: [2, 4, 1], state: "minecraft:air"},
-        {pos: [2, 4, 2], state: "minecraft:air"},
-        {pos: [2, 4, 3], state: "minecraft:air"},
-        {pos: [2, 4, 4], state: "minecraft:air"},
-        {pos: [3, 4, 0], state: "minecraft:air"},
-        {pos: [3, 4, 1], state: "minecraft:air"},
-        {pos: [3, 4, 2], state: "minecraft:air"},
-        {pos: [3, 4, 3], state: "minecraft:air"},
-        {pos: [3, 4, 4], state: "minecraft:air"},
-        {pos: [4, 4, 0], state: "minecraft:air"},
-        {pos: [4, 4, 1], state: "minecraft:air"},
-        {pos: [4, 4, 2], state: "minecraft:air"},
-        {pos: [4, 4, 3], state: "minecraft:air"},
-        {pos: [4, 4, 4], state: "minecraft:air"}
+        {pos: [4, 1, 2], state: "minecraft:chest{facing:north,type:right,waterlogged:false}", nbt: {Items: [{Count: 32b, Slot: 0b, id: "minecraft:dirt"}], id: "minecraft:chest"}}
     ],
     entities: [],
     palette: [
         "minecraft:polished_andesite",
-        "minecraft:air",
         "minecraft:chest{facing:north,type:left,waterlogged:false}",
         "minecraft:chest{facing:north,type:right,waterlogged:false}",
         "computercraft:computer_advanced{facing:north,state:on}"

projects/common/src/testMod/resources/data/cctest/structures/inventory_test.fails_on_full.snbt

@@ -27,111 +27,17 @@
         {pos: [4, 0, 2], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 3], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 4], state: "minecraft:polished_andesite"},
-        {pos: [0, 1, 0], state: "minecraft:air"},
-        {pos: [0, 1, 1], state: "minecraft:air"},
-        {pos: [0, 1, 2], state: "minecraft:air"},
-        {pos: [0, 1, 3], state: "minecraft:air"},
-        {pos: [0, 1, 4], state: "minecraft:air"},
-        {pos: [1, 1, 0], state: "minecraft:air"},
-        {pos: [1, 1, 1], state: "minecraft:air"},
         {pos: [1, 1, 2], state: "minecraft:furnace{facing:north,lit:false}", nbt: {BurnTime: 0s, CookTime: 0s, CookTimeTotal: 200s, Items: [{Count: 1b, Slot: 2b, id: "minecraft:iron_ingot"}], RecipesUsed: {"minecraft:iron_ingot_from_smelting_iron_ore": 1}, id: "minecraft:furnace"}},
         {pos: [1, 1, 3], state: "computercraft:wired_modem_full{modem:false,peripheral:true}", nbt: {PeripheralAccess: 1b, PeripheralId2: 0, PeripheralType2: "minecraft:furnace", id: "computercraft:wired_modem_full"}},
-        {pos: [1, 1, 4], state: "minecraft:air"},
-        {pos: [2, 1, 0], state: "minecraft:air"},
         {pos: [2, 1, 1], state: "computercraft:computer_advanced{facing:north,state:on}", nbt: {ComputerId: 1, Label: "inventory_test.fails_on_full", On: 1b, id: "computercraft:computer_advanced"}},
         {pos: [2, 1, 2], state: "computercraft:cable{cable:true,down:false,east:false,modem:north_off,north:true,south:true,up:false,waterlogged:false,west:false}", nbt: {PeripheralAccess: 0b, id: "computercraft:cable"}},
         {pos: [2, 1, 3], state: "computercraft:cable{cable:true,down:false,east:true,modem:none,north:true,south:false,up:false,waterlogged:false,west:true}", nbt: {PeripheralAccess: 0b, id: "computercraft:cable"}},
-        {pos: [2, 1, 4], state: "minecraft:air"},
-        {pos: [3, 1, 0], state: "minecraft:air"},
-        {pos: [3, 1, 1], state: "minecraft:air"},
         {pos: [3, 1, 2], state: "minecraft:barrel{facing:up,open:false}", nbt: {Items: [{Count: 1b, Slot: 0b, id: "minecraft:polished_andesite"}, {Count: 1b, Slot: 1b, id: "minecraft:polished_andesite"}, {Count: 1b, Slot: 2b, id: "minecraft:polished_andesite"}, {Count: 1b, Slot: 3b, id: "minecraft:polished_andesite"}, {Count: 1b, Slot: 4b, id: "minecraft:polished_andesite"}, {Count: 1b, Slot: 5b, id: "minecraft:polished_andesite"}, {Count: 1b, Slot: 6b, id: "minecraft:polished_andesite"}, {Count: 1b, Slot: 7b, id: "minecraft:polished_andesite"}, {Count: 1b, Slot: 8b, id: "minecraft:polished_andesite"}, {Count: 1b, Slot: 9b, id: "minecraft:polished_andesite"}, {Count: 1b, Slot: 10b, id: "minecraft:polished_andesite"}, {Count: 1b, Slot: 11b, id: "minecraft:polished_andesite"}, {Count: 1b, Slot: 12b, id: "minecraft:polished_andesite"}, {Count: 1b, Slot: 13b, id: "minecraft:polished_andesite"}, {Count: 1b, Slot: 14b, id: "minecraft:polished_andesite"}, {Count: 1b, Slot: 15b, id: "minecraft:polished_andesite"}, {Count: 1b, Slot: 16b, id: "minecraft:polished_andesite"}, {Count: 1b, Slot: 17b, id: "minecraft:polished_andesite"}, {Count: 1b, Slot: 18b, id: "minecraft:polished_andesite"}, {Count: 1b, Slot: 19b, id: "minecraft:polished_andesite"}, {Count: 1b, Slot: 20b, id: "minecraft:polished_andesite"}, {Count: 1b, Slot: 21b, id: "minecraft:polished_andesite"}, {Count: 1b, Slot: 22b, id: "minecraft:polished_andesite"}, {Count: 1b, Slot: 23b, id: "minecraft:polished_andesite"}, {Count: 1b, Slot: 24b, id: "minecraft:polished_andesite"}, {Count: 1b, Slot: 25b, id: "minecraft:polished_andesite"}, {Count: 1b, Slot: 26b, id: "minecraft:polished_andesite"}], id: "minecraft:barrel"}},
-        {pos: [3, 1, 3], state: "computercraft:wired_modem_full{modem:false,peripheral:true}", nbt: {PeripheralAccess: 1b, PeripheralId2: 0, PeripheralType2: "minecraft:barrel", id: "computercraft:wired_modem_full"}},
-        {pos: [3, 1, 4], state: "minecraft:air"},
-        {pos: [4, 1, 0], state: "minecraft:air"},
-        {pos: [4, 1, 1], state: "minecraft:air"},
-        {pos: [4, 1, 2], state: "minecraft:air"},
-        {pos: [4, 1, 3], state: "minecraft:air"},
-        {pos: [4, 1, 4], state: "minecraft:air"},
-        {pos: [0, 2, 0], state: "minecraft:air"},
-        {pos: [0, 2, 1], state: "minecraft:air"},
-        {pos: [0, 2, 2], state: "minecraft:air"},
-        {pos: [0, 2, 3], state: "minecraft:air"},
-        {pos: [0, 2, 4], state: "minecraft:air"},
-        {pos: [1, 2, 0], state: "minecraft:air"},
-        {pos: [1, 2, 1], state: "minecraft:air"},
-        {pos: [1, 2, 2], state: "minecraft:air"},
-        {pos: [1, 2, 3], state: "minecraft:air"},
-        {pos: [1, 2, 4], state: "minecraft:air"},
-        {pos: [2, 2, 0], state: "minecraft:air"},
-        {pos: [2, 2, 1], state: "minecraft:air"},
-        {pos: [2, 2, 2], state: "minecraft:air"},
-        {pos: [2, 2, 3], state: "minecraft:air"},
-        {pos: [2, 2, 4], state: "minecraft:air"},
-        {pos: [3, 2, 0], state: "minecraft:air"},
-        {pos: [3, 2, 1], state: "minecraft:air"},
-        {pos: [3, 2, 2], state: "minecraft:air"},
-        {pos: [3, 2, 3], state: "minecraft:air"},
-        {pos: [3, 2, 4], state: "minecraft:air"},
-        {pos: [4, 2, 0], state: "minecraft:air"},
-        {pos: [4, 2, 1], state: "minecraft:air"},
-        {pos: [4, 2, 2], state: "minecraft:air"},
-        {pos: [4, 2, 3], state: "minecraft:air"},
-        {pos: [4, 2, 4], state: "minecraft:air"},
-        {pos: [0, 3, 0], state: "minecraft:air"},
-        {pos: [0, 3, 1], state: "minecraft:air"},
-        {pos: [0, 3, 2], state: "minecraft:air"},
-        {pos: [0, 3, 3], state: "minecraft:air"},
-        {pos: [0, 3, 4], state: "minecraft:air"},
-        {pos: [1, 3, 0], state: "minecraft:air"},
-        {pos: [1, 3, 1], state: "minecraft:air"},
-        {pos: [1, 3, 2], state: "minecraft:air"},
-        {pos: [1, 3, 3], state: "minecraft:air"},
-        {pos: [1, 3, 4], state: "minecraft:air"},
-        {pos: [2, 3, 0], state: "minecraft:air"},
-        {pos: [2, 3, 1], state: "minecraft:air"},
-        {pos: [2, 3, 2], state: "minecraft:air"},
-        {pos: [2, 3, 3], state: "minecraft:air"},
-        {pos: [2, 3, 4], state: "minecraft:air"},
-        {pos: [3, 3, 0], state: "minecraft:air"},
-        {pos: [3, 3, 1], state: "minecraft:air"},
-        {pos: [3, 3, 2], state: "minecraft:air"},
-        {pos: [3, 3, 3], state: "minecraft:air"},
-        {pos: [3, 3, 4], state: "minecraft:air"},
-        {pos: [4, 3, 0], state: "minecraft:air"},
-        {pos: [4, 3, 1], state: "minecraft:air"},
-        {pos: [4, 3, 2], state: "minecraft:air"},
-        {pos: [4, 3, 3], state: "minecraft:air"},
-        {pos: [4, 3, 4], state: "minecraft:air"},
-        {pos: [0, 4, 0], state: "minecraft:air"},
-        {pos: [0, 4, 1], state: "minecraft:air"},
-        {pos: [0, 4, 2], state: "minecraft:air"},
-        {pos: [0, 4, 3], state: "minecraft:air"},
-        {pos: [0, 4, 4], state: "minecraft:air"},
-        {pos: [1, 4, 0], state: "minecraft:air"},
-        {pos: [1, 4, 1], state: "minecraft:air"},
-        {pos: [1, 4, 2], state: "minecraft:air"},
-        {pos: [1, 4, 3], state: "minecraft:air"},
-        {pos: [1, 4, 4], state: "minecraft:air"},
-        {pos: [2, 4, 0], state: "minecraft:air"},
-        {pos: [2, 4, 1], state: "minecraft:air"},
-        {pos: [2, 4, 2], state: "minecraft:air"},
-        {pos: [2, 4, 3], state: "minecraft:air"},
-        {pos: [2, 4, 4], state: "minecraft:air"},
-        {pos: [3, 4, 0], state: "minecraft:air"},
-        {pos: [3, 4, 1], state: "minecraft:air"},
-        {pos: [3, 4, 2], state: "minecraft:air"},
-        {pos: [3, 4, 3], state: "minecraft:air"},
-        {pos: [3, 4, 4], state: "minecraft:air"},
-        {pos: [4, 4, 0], state: "minecraft:air"},
-        {pos: [4, 4, 1], state: "minecraft:air"},
-        {pos: [4, 4, 2], state: "minecraft:air"},
-        {pos: [4, 4, 3], state: "minecraft:air"},
-        {pos: [4, 4, 4], state: "minecraft:air"}
+        {pos: [3, 1, 3], state: "computercraft:wired_modem_full{modem:false,peripheral:true}", nbt: {PeripheralAccess: 1b, PeripheralId2: 0, PeripheralType2: "minecraft:barrel", id: "computercraft:wired_modem_full"}}
     ],
     entities: [],
     palette: [
         "minecraft:polished_andesite",
-        "minecraft:air",
         "minecraft:furnace{facing:north,lit:false}",
         "computercraft:wired_modem_full{modem:false,peripheral:true}",
         "computercraft:computer_advanced{facing:north,state:on}",

projects/common/src/testMod/resources/data/cctest/structures/modem_test.cable_modem_does_not_report_self.snbt

@@ -27,111 +27,13 @@
         {pos: [4, 0, 2], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 3], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 4], state: "minecraft:polished_andesite"},
-        {pos: [0, 1, 0], state: "minecraft:air"},
-        {pos: [0, 1, 1], state: "minecraft:air"},
-        {pos: [0, 1, 2], state: "minecraft:air"},
-        {pos: [0, 1, 3], state: "minecraft:air"},
-        {pos: [0, 1, 4], state: "minecraft:air"},
-        {pos: [1, 1, 0], state: "minecraft:air"},
-        {pos: [1, 1, 1], state: "minecraft:air"},
         {pos: [1, 1, 2], state: "computercraft:cable{cable:true,down:false,east:true,modem:east_off_peripheral,north:false,south:false,up:false,waterlogged:false,west:false}", nbt: {PeripheralAccess: 1b, PeripheralId: 0, PeripheralType: "computer", id: "computercraft:cable"}},
-        {pos: [1, 1, 3], state: "minecraft:air"},
-        {pos: [1, 1, 4], state: "minecraft:air"},
-        {pos: [2, 1, 0], state: "minecraft:air"},
-        {pos: [2, 1, 1], state: "minecraft:air"},
         {pos: [2, 1, 2], state: "computercraft:computer_normal{facing:north,state:on}", nbt: {ComputerId: 1, Label: "modem_test.cable_modem_does_not_report_self", On: 1b, id: "computercraft:computer_normal"}},
-        {pos: [2, 1, 3], state: "computercraft:cable{cable:true,down:false,east:false,modem:north_off,north:true,south:false,up:false,waterlogged:false,west:false}", nbt: {PeripheralAccess: 0b, id: "computercraft:cable"}},
-        {pos: [2, 1, 4], state: "minecraft:air"},
-        {pos: [3, 1, 0], state: "minecraft:air"},
-        {pos: [3, 1, 1], state: "minecraft:air"},
-        {pos: [3, 1, 2], state: "minecraft:air"},
-        {pos: [3, 1, 3], state: "minecraft:air"},
-        {pos: [3, 1, 4], state: "minecraft:air"},
-        {pos: [4, 1, 0], state: "minecraft:air"},
-        {pos: [4, 1, 1], state: "minecraft:air"},
-        {pos: [4, 1, 2], state: "minecraft:air"},
-        {pos: [4, 1, 3], state: "minecraft:air"},
-        {pos: [4, 1, 4], state: "minecraft:air"},
-        {pos: [0, 2, 0], state: "minecraft:air"},
-        {pos: [0, 2, 1], state: "minecraft:air"},
-        {pos: [0, 2, 2], state: "minecraft:air"},
-        {pos: [0, 2, 3], state: "minecraft:air"},
-        {pos: [0, 2, 4], state: "minecraft:air"},
-        {pos: [1, 2, 0], state: "minecraft:air"},
-        {pos: [1, 2, 1], state: "minecraft:air"},
-        {pos: [1, 2, 2], state: "minecraft:air"},
-        {pos: [1, 2, 3], state: "minecraft:air"},
-        {pos: [1, 2, 4], state: "minecraft:air"},
-        {pos: [2, 2, 0], state: "minecraft:air"},
-        {pos: [2, 2, 1], state: "minecraft:air"},
-        {pos: [2, 2, 2], state: "minecraft:air"},
-        {pos: [2, 2, 3], state: "minecraft:air"},
-        {pos: [2, 2, 4], state: "minecraft:air"},
-        {pos: [3, 2, 0], state: "minecraft:air"},
-        {pos: [3, 2, 1], state: "minecraft:air"},
-        {pos: [3, 2, 2], state: "minecraft:air"},
-        {pos: [3, 2, 3], state: "minecraft:air"},
-        {pos: [3, 2, 4], state: "minecraft:air"},
-        {pos: [4, 2, 0], state: "minecraft:air"},
-        {pos: [4, 2, 1], state: "minecraft:air"},
-        {pos: [4, 2, 2], state: "minecraft:air"},
-        {pos: [4, 2, 3], state: "minecraft:air"},
-        {pos: [4, 2, 4], state: "minecraft:air"},
-        {pos: [0, 3, 0], state: "minecraft:air"},
-        {pos: [0, 3, 1], state: "minecraft:air"},
-        {pos: [0, 3, 2], state: "minecraft:air"},
-        {pos: [0, 3, 3], state: "minecraft:air"},
-        {pos: [0, 3, 4], state: "minecraft:air"},
-        {pos: [1, 3, 0], state: "minecraft:air"},
-        {pos: [1, 3, 1], state: "minecraft:air"},
-        {pos: [1, 3, 2], state: "minecraft:air"},
-        {pos: [1, 3, 3], state: "minecraft:air"},
-        {pos: [1, 3, 4], state: "minecraft:air"},
-        {pos: [2, 3, 0], state: "minecraft:air"},
-        {pos: [2, 3, 1], state: "minecraft:air"},
-        {pos: [2, 3, 2], state: "minecraft:air"},
-        {pos: [2, 3, 3], state: "minecraft:air"},
-        {pos: [2, 3, 4], state: "minecraft:air"},
-        {pos: [3, 3, 0], state: "minecraft:air"},
-        {pos: [3, 3, 1], state: "minecraft:air"},
-        {pos: [3, 3, 2], state: "minecraft:air"},
-        {pos: [3, 3, 3], state: "minecraft:air"},
-        {pos: [3, 3, 4], state: "minecraft:air"},
-        {pos: [4, 3, 0], state: "minecraft:air"},
-        {pos: [4, 3, 1], state: "minecraft:air"},
-        {pos: [4, 3, 2], state: "minecraft:air"},
-        {pos: [4, 3, 3], state: "minecraft:air"},
-        {pos: [4, 3, 4], state: "minecraft:air"},
-        {pos: [0, 4, 0], state: "minecraft:air"},
-        {pos: [0, 4, 1], state: "minecraft:air"},
-        {pos: [0, 4, 2], state: "minecraft:air"},
-        {pos: [0, 4, 3], state: "minecraft:air"},
-        {pos: [0, 4, 4], state: "minecraft:air"},
-        {pos: [1, 4, 0], state: "minecraft:air"},
-        {pos: [1, 4, 1], state: "minecraft:air"},
-        {pos: [1, 4, 2], state: "minecraft:air"},
-        {pos: [1, 4, 3], state: "minecraft:air"},
-        {pos: [1, 4, 4], state: "minecraft:air"},
-        {pos: [2, 4, 0], state: "minecraft:air"},
-        {pos: [2, 4, 1], state: "minecraft:air"},
-        {pos: [2, 4, 2], state: "minecraft:air"},
-        {pos: [2, 4, 3], state: "minecraft:air"},
-        {pos: [2, 4, 4], state: "minecraft:air"},
-        {pos: [3, 4, 0], state: "minecraft:air"},
-        {pos: [3, 4, 1], state: "minecraft:air"},
-        {pos: [3, 4, 2], state: "minecraft:air"},
-        {pos: [3, 4, 3], state: "minecraft:air"},
-        {pos: [3, 4, 4], state: "minecraft:air"},
-        {pos: [4, 4, 0], state: "minecraft:air"},
-        {pos: [4, 4, 1], state: "minecraft:air"},
-        {pos: [4, 4, 2], state: "minecraft:air"},
-        {pos: [4, 4, 3], state: "minecraft:air"},
-        {pos: [4, 4, 4], state: "minecraft:air"}
+        {pos: [2, 1, 3], state: "computercraft:cable{cable:true,down:false,east:false,modem:north_off,north:true,south:false,up:false,waterlogged:false,west:false}", nbt: {PeripheralAccess: 0b, id: "computercraft:cable"}}
     ],
     entities: [],
     palette: [
         "minecraft:polished_andesite",
-        "minecraft:air",
         "computercraft:cable{cable:true,down:false,east:true,modem:east_off_peripheral,north:false,south:false,up:false,waterlogged:false,west:false}",
         "computercraft:computer_normal{facing:north,state:on}",
         "computercraft:cable{cable:true,down:false,east:false,modem:north_off,north:true,south:false,up:false,waterlogged:false,west:false}"

projects/common/src/testMod/resources/data/cctest/structures/modem_test.chest_resizes_on_change.snbt

@@ -27,111 +27,13 @@
         {pos: [4, 0, 2], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 3], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 4], state: "minecraft:polished_andesite"},
-        {pos: [0, 1, 0], state: "minecraft:air"},
-        {pos: [0, 1, 1], state: "minecraft:air"},
-        {pos: [0, 1, 2], state: "minecraft:air"},
-        {pos: [0, 1, 3], state: "minecraft:air"},
-        {pos: [0, 1, 4], state: "minecraft:air"},
-        {pos: [1, 1, 0], state: "minecraft:air"},
-        {pos: [1, 1, 1], state: "minecraft:air"},
-        {pos: [1, 1, 2], state: "minecraft:air"},
-        {pos: [1, 1, 3], state: "minecraft:air"},
-        {pos: [1, 1, 4], state: "minecraft:air"},
-        {pos: [2, 1, 0], state: "minecraft:air"},
-        {pos: [2, 1, 1], state: "minecraft:air"},
         {pos: [2, 1, 2], state: "minecraft:chest{facing:north,type:single,waterlogged:false}", nbt: {Items: [], id: "minecraft:chest"}},
-        {pos: [2, 1, 3], state: "minecraft:air"},
-        {pos: [2, 1, 4], state: "minecraft:air"},
-        {pos: [3, 1, 0], state: "minecraft:air"},
         {pos: [3, 1, 1], state: "computercraft:computer_normal{facing:north,state:on}", nbt: {ComputerId: 1, Label: "modem_test.chest_resizes_on_change", On: 1b, id: "computercraft:computer_normal"}},
-        {pos: [3, 1, 2], state: "computercraft:wired_modem_full{modem:false,peripheral:true}", nbt: {PeripheralId2: 2, PeripheralId4: 0, PeripheralType2: "computer", PeripheralType4: "minecraft:chest", id: "computercraft:wired_modem_full"}},
-        {pos: [3, 1, 3], state: "minecraft:air"},
-        {pos: [3, 1, 4], state: "minecraft:air"},
-        {pos: [4, 1, 0], state: "minecraft:air"},
-        {pos: [4, 1, 1], state: "minecraft:air"},
-        {pos: [4, 1, 2], state: "minecraft:air"},
-        {pos: [4, 1, 3], state: "minecraft:air"},
-        {pos: [4, 1, 4], state: "minecraft:air"},
-        {pos: [0, 2, 0], state: "minecraft:air"},
-        {pos: [0, 2, 1], state: "minecraft:air"},
-        {pos: [0, 2, 2], state: "minecraft:air"},
-        {pos: [0, 2, 3], state: "minecraft:air"},
-        {pos: [0, 2, 4], state: "minecraft:air"},
-        {pos: [1, 2, 0], state: "minecraft:air"},
-        {pos: [1, 2, 1], state: "minecraft:air"},
-        {pos: [1, 2, 2], state: "minecraft:air"},
-        {pos: [1, 2, 3], state: "minecraft:air"},
-        {pos: [1, 2, 4], state: "minecraft:air"},
-        {pos: [2, 2, 0], state: "minecraft:air"},
-        {pos: [2, 2, 1], state: "minecraft:air"},
-        {pos: [2, 2, 2], state: "minecraft:air"},
-        {pos: [2, 2, 3], state: "minecraft:air"},
-        {pos: [2, 2, 4], state: "minecraft:air"},
-        {pos: [3, 2, 0], state: "minecraft:air"},
-        {pos: [3, 2, 1], state: "minecraft:air"},
-        {pos: [3, 2, 2], state: "minecraft:air"},
-        {pos: [3, 2, 3], state: "minecraft:air"},
-        {pos: [3, 2, 4], state: "minecraft:air"},
-        {pos: [4, 2, 0], state: "minecraft:air"},
-        {pos: [4, 2, 1], state: "minecraft:air"},
-        {pos: [4, 2, 2], state: "minecraft:air"},
-        {pos: [4, 2, 3], state: "minecraft:air"},
-        {pos: [4, 2, 4], state: "minecraft:air"},
-        {pos: [0, 3, 0], state: "minecraft:air"},
-        {pos: [0, 3, 1], state: "minecraft:air"},
-        {pos: [0, 3, 2], state: "minecraft:air"},
-        {pos: [0, 3, 3], state: "minecraft:air"},
-        {pos: [0, 3, 4], state: "minecraft:air"},
-        {pos: [1, 3, 0], state: "minecraft:air"},
-        {pos: [1, 3, 1], state: "minecraft:air"},
-        {pos: [1, 3, 2], state: "minecraft:air"},
-        {pos: [1, 3, 3], state: "minecraft:air"},
-        {pos: [1, 3, 4], state: "minecraft:air"},
-        {pos: [2, 3, 0], state: "minecraft:air"},
-        {pos: [2, 3, 1], state: "minecraft:air"},
-        {pos: [2, 3, 2], state: "minecraft:air"},
-        {pos: [2, 3, 3], state: "minecraft:air"},
-        {pos: [2, 3, 4], state: "minecraft:air"},
-        {pos: [3, 3, 0], state: "minecraft:air"},
-        {pos: [3, 3, 1], state: "minecraft:air"},
-        {pos: [3, 3, 2], state: "minecraft:air"},
-        {pos: [3, 3, 3], state: "minecraft:air"},
-        {pos: [3, 3, 4], state: "minecraft:air"},
-        {pos: [4, 3, 0], state: "minecraft:air"},
-        {pos: [4, 3, 1], state: "minecraft:air"},
-        {pos: [4, 3, 2], state: "minecraft:air"},
-        {pos: [4, 3, 3], state: "minecraft:air"},
-        {pos: [4, 3, 4], state: "minecraft:air"},
-        {pos: [0, 4, 0], state: "minecraft:air"},
-        {pos: [0, 4, 1], state: "minecraft:air"},
-        {pos: [0, 4, 2], state: "minecraft:air"},
-        {pos: [0, 4, 3], state: "minecraft:air"},
-        {pos: [0, 4, 4], state: "minecraft:air"},
-        {pos: [1, 4, 0], state: "minecraft:air"},
-        {pos: [1, 4, 1], state: "minecraft:air"},
-        {pos: [1, 4, 2], state: "minecraft:air"},
-        {pos: [1, 4, 3], state: "minecraft:air"},
-        {pos: [1, 4, 4], state: "minecraft:air"},
-        {pos: [2, 4, 0], state: "minecraft:air"},
-        {pos: [2, 4, 1], state: "minecraft:air"},
-        {pos: [2, 4, 2], state: "minecraft:air"},
-        {pos: [2, 4, 3], state: "minecraft:air"},
-        {pos: [2, 4, 4], state: "minecraft:air"},
-        {pos: [3, 4, 0], state: "minecraft:air"},
-        {pos: [3, 4, 1], state: "minecraft:air"},
-        {pos: [3, 4, 2], state: "minecraft:air"},
-        {pos: [3, 4, 3], state: "minecraft:air"},
-        {pos: [3, 4, 4], state: "minecraft:air"},
-        {pos: [4, 4, 0], state: "minecraft:air"},
-        {pos: [4, 4, 1], state: "minecraft:air"},
-        {pos: [4, 4, 2], state: "minecraft:air"},
-        {pos: [4, 4, 3], state: "minecraft:air"},
-        {pos: [4, 4, 4], state: "minecraft:air"}
+        {pos: [3, 1, 2], state: "computercraft:wired_modem_full{modem:false,peripheral:true}", nbt: {PeripheralId2: 2, PeripheralId4: 0, PeripheralType2: "computer", PeripheralType4: "minecraft:chest", id: "computercraft:wired_modem_full"}}
     ],
     entities: [],
     palette: [
         "minecraft:polished_andesite",
-        "minecraft:air",
         "minecraft:chest{facing:north,type:single,waterlogged:false}",
         "computercraft:computer_normal{facing:north,state:on}",
         "computercraft:wired_modem_full{modem:false,peripheral:true}"

projects/common/src/testMod/resources/data/cctest/structures/modem_test.full_block_modem_does_not_report_self.snbt

@@ -27,111 +27,13 @@
         {pos: [4, 0, 2], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 3], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 4], state: "minecraft:polished_andesite"},
-        {pos: [0, 1, 0], state: "minecraft:air"},
-        {pos: [0, 1, 1], state: "minecraft:air"},
-        {pos: [0, 1, 2], state: "minecraft:air"},
-        {pos: [0, 1, 3], state: "minecraft:air"},
-        {pos: [0, 1, 4], state: "minecraft:air"},
-        {pos: [1, 1, 0], state: "minecraft:air"},
-        {pos: [1, 1, 1], state: "minecraft:air"},
         {pos: [1, 1, 2], state: "computercraft:wired_modem_full{modem:false,peripheral:true}", nbt: {PeripheralAccess: 1b, PeripheralId5: 1, PeripheralType5: "computer", id: "computercraft:wired_modem_full"}},
-        {pos: [1, 1, 3], state: "minecraft:air"},
-        {pos: [1, 1, 4], state: "minecraft:air"},
-        {pos: [2, 1, 0], state: "minecraft:air"},
-        {pos: [2, 1, 1], state: "minecraft:air"},
         {pos: [2, 1, 2], state: "computercraft:computer_normal{facing:north,state:on}", nbt: {ComputerId: 1, Label: "modem_test.full_block_modem_does_not_report_self", On: 1b, id: "computercraft:computer_normal"}},
-        {pos: [2, 1, 3], state: "computercraft:wired_modem_full{modem:false,peripheral:false}", nbt: {PeripheralAccess: 0b, id: "computercraft:wired_modem_full"}},
-        {pos: [2, 1, 4], state: "minecraft:air"},
-        {pos: [3, 1, 0], state: "minecraft:air"},
-        {pos: [3, 1, 1], state: "minecraft:air"},
-        {pos: [3, 1, 2], state: "minecraft:air"},
-        {pos: [3, 1, 3], state: "minecraft:air"},
-        {pos: [3, 1, 4], state: "minecraft:air"},
-        {pos: [4, 1, 0], state: "minecraft:air"},
-        {pos: [4, 1, 1], state: "minecraft:air"},
-        {pos: [4, 1, 2], state: "minecraft:air"},
-        {pos: [4, 1, 3], state: "minecraft:air"},
-        {pos: [4, 1, 4], state: "minecraft:air"},
-        {pos: [0, 2, 0], state: "minecraft:air"},
-        {pos: [0, 2, 1], state: "minecraft:air"},
-        {pos: [0, 2, 2], state: "minecraft:air"},
-        {pos: [0, 2, 3], state: "minecraft:air"},
-        {pos: [0, 2, 4], state: "minecraft:air"},
-        {pos: [1, 2, 0], state: "minecraft:air"},
-        {pos: [1, 2, 1], state: "minecraft:air"},
-        {pos: [1, 2, 2], state: "minecraft:air"},
-        {pos: [1, 2, 3], state: "minecraft:air"},
-        {pos: [1, 2, 4], state: "minecraft:air"},
-        {pos: [2, 2, 0], state: "minecraft:air"},
-        {pos: [2, 2, 1], state: "minecraft:air"},
-        {pos: [2, 2, 2], state: "minecraft:air"},
-        {pos: [2, 2, 3], state: "minecraft:air"},
-        {pos: [2, 2, 4], state: "minecraft:air"},
-        {pos: [3, 2, 0], state: "minecraft:air"},
-        {pos: [3, 2, 1], state: "minecraft:air"},
-        {pos: [3, 2, 2], state: "minecraft:air"},
-        {pos: [3, 2, 3], state: "minecraft:air"},
-        {pos: [3, 2, 4], state: "minecraft:air"},
-        {pos: [4, 2, 0], state: "minecraft:air"},
-        {pos: [4, 2, 1], state: "minecraft:air"},
-        {pos: [4, 2, 2], state: "minecraft:air"},
-        {pos: [4, 2, 3], state: "minecraft:air"},
-        {pos: [4, 2, 4], state: "minecraft:air"},
-        {pos: [0, 3, 0], state: "minecraft:air"},
-        {pos: [0, 3, 1], state: "minecraft:air"},
-        {pos: [0, 3, 2], state: "minecraft:air"},
-        {pos: [0, 3, 3], state: "minecraft:air"},
-        {pos: [0, 3, 4], state: "minecraft:air"},
-        {pos: [1, 3, 0], state: "minecraft:air"},
-        {pos: [1, 3, 1], state: "minecraft:air"},
-        {pos: [1, 3, 2], state: "minecraft:air"},
-        {pos: [1, 3, 3], state: "minecraft:air"},
-        {pos: [1, 3, 4], state: "minecraft:air"},
-        {pos: [2, 3, 0], state: "minecraft:air"},
-        {pos: [2, 3, 1], state: "minecraft:air"},
-        {pos: [2, 3, 2], state: "minecraft:air"},
-        {pos: [2, 3, 3], state: "minecraft:air"},
-        {pos: [2, 3, 4], state: "minecraft:air"},
-        {pos: [3, 3, 0], state: "minecraft:air"},
-        {pos: [3, 3, 1], state: "minecraft:air"},
-        {pos: [3, 3, 2], state: "minecraft:air"},
-        {pos: [3, 3, 3], state: "minecraft:air"},
-        {pos: [3, 3, 4], state: "minecraft:air"},
-        {pos: [4, 3, 0], state: "minecraft:air"},
-        {pos: [4, 3, 1], state: "minecraft:air"},
-        {pos: [4, 3, 2], state: "minecraft:air"},
-        {pos: [4, 3, 3], state: "minecraft:air"},
-        {pos: [4, 3, 4], state: "minecraft:air"},
-        {pos: [0, 4, 0], state: "minecraft:air"},
-        {pos: [0, 4, 1], state: "minecraft:air"},
-        {pos: [0, 4, 2], state: "minecraft:air"},
-        {pos: [0, 4, 3], state: "minecraft:air"},
-        {pos: [0, 4, 4], state: "minecraft:air"},
-        {pos: [1, 4, 0], state: "minecraft:air"},
-        {pos: [1, 4, 1], state: "minecraft:air"},
-        {pos: [1, 4, 2], state: "minecraft:air"},
-        {pos: [1, 4, 3], state: "minecraft:air"},
-        {pos: [1, 4, 4], state: "minecraft:air"},
-        {pos: [2, 4, 0], state: "minecraft:air"},
-        {pos: [2, 4, 1], state: "minecraft:air"},
-        {pos: [2, 4, 2], state: "minecraft:air"},
-        {pos: [2, 4, 3], state: "minecraft:air"},
-        {pos: [2, 4, 4], state: "minecraft:air"},
-        {pos: [3, 4, 0], state: "minecraft:air"},
-        {pos: [3, 4, 1], state: "minecraft:air"},
-        {pos: [3, 4, 2], state: "minecraft:air"},
-        {pos: [3, 4, 3], state: "minecraft:air"},
-        {pos: [3, 4, 4], state: "minecraft:air"},
-        {pos: [4, 4, 0], state: "minecraft:air"},
-        {pos: [4, 4, 1], state: "minecraft:air"},
-        {pos: [4, 4, 2], state: "minecraft:air"},
-        {pos: [4, 4, 3], state: "minecraft:air"},
-        {pos: [4, 4, 4], state: "minecraft:air"}
+        {pos: [2, 1, 3], state: "computercraft:wired_modem_full{modem:false,peripheral:false}", nbt: {PeripheralAccess: 0b, id: "computercraft:wired_modem_full"}}
     ],
     entities: [],
     palette: [
         "minecraft:polished_andesite",
-        "minecraft:air",
         "computercraft:wired_modem_full{modem:false,peripheral:true}",
         "computercraft:computer_normal{facing:north,state:on}",
         "computercraft:wired_modem_full{modem:false,peripheral:false}"

projects/common/src/testMod/resources/data/cctest/structures/modem_test.full_modems_form_networks.snbt

@@ -27,111 +27,17 @@
         {pos: [4, 0, 2], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 3], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 4], state: "minecraft:polished_andesite"},
-        {pos: [0, 1, 0], state: "minecraft:air"},
-        {pos: [0, 1, 1], state: "minecraft:air"},
-        {pos: [0, 1, 2], state: "minecraft:air"},
-        {pos: [0, 1, 3], state: "minecraft:air"},
-        {pos: [0, 1, 4], state: "minecraft:air"},
-        {pos: [1, 1, 0], state: "minecraft:air"},
         {pos: [1, 1, 1], state: "computercraft:wired_modem_full{modem:false,peripheral:false}", nbt: {PeripheralAccess: 0b, id: "computercraft:wired_modem_full"}},
         {pos: [1, 1, 2], state: "computercraft:wired_modem_full{modem:false,peripheral:false}", nbt: {PeripheralAccess: 0b, id: "computercraft:wired_modem_full"}},
         {pos: [1, 1, 3], state: "computercraft:wired_modem_full{modem:false,peripheral:false}", nbt: {PeripheralAccess: 0b, id: "computercraft:wired_modem_full"}},
-        {pos: [1, 1, 4], state: "minecraft:air"},
-        {pos: [2, 1, 0], state: "minecraft:air"},
-        {pos: [2, 1, 1], state: "minecraft:air"},
-        {pos: [2, 1, 2], state: "minecraft:air"},
         {pos: [2, 1, 3], state: "computercraft:wired_modem_full{modem:false,peripheral:false}", nbt: {PeripheralAccess: 0b, id: "computercraft:wired_modem_full"}},
-        {pos: [2, 1, 4], state: "minecraft:air"},
-        {pos: [3, 1, 0], state: "minecraft:air"},
         {pos: [3, 1, 1], state: "computercraft:wired_modem_full{modem:false,peripheral:false}", nbt: {PeripheralAccess: 0b, id: "computercraft:wired_modem_full"}},
         {pos: [3, 1, 2], state: "computercraft:wired_modem_full{modem:false,peripheral:false}", nbt: {PeripheralAccess: 0b, id: "computercraft:wired_modem_full"}},
-        {pos: [3, 1, 3], state: "computercraft:wired_modem_full{modem:false,peripheral:false}", nbt: {PeripheralAccess: 0b, id: "computercraft:wired_modem_full"}},
-        {pos: [3, 1, 4], state: "minecraft:air"},
-        {pos: [4, 1, 0], state: "minecraft:air"},
-        {pos: [4, 1, 1], state: "minecraft:air"},
-        {pos: [4, 1, 2], state: "minecraft:air"},
-        {pos: [4, 1, 3], state: "minecraft:air"},
-        {pos: [4, 1, 4], state: "minecraft:air"},
-        {pos: [0, 2, 0], state: "minecraft:air"},
-        {pos: [0, 2, 1], state: "minecraft:air"},
-        {pos: [0, 2, 2], state: "minecraft:air"},
-        {pos: [0, 2, 3], state: "minecraft:air"},
-        {pos: [0, 2, 4], state: "minecraft:air"},
-        {pos: [1, 2, 0], state: "minecraft:air"},
-        {pos: [1, 2, 1], state: "minecraft:air"},
-        {pos: [1, 2, 2], state: "minecraft:air"},
-        {pos: [1, 2, 3], state: "minecraft:air"},
-        {pos: [1, 2, 4], state: "minecraft:air"},
-        {pos: [2, 2, 0], state: "minecraft:air"},
-        {pos: [2, 2, 1], state: "minecraft:air"},
-        {pos: [2, 2, 2], state: "minecraft:air"},
-        {pos: [2, 2, 3], state: "minecraft:air"},
-        {pos: [2, 2, 4], state: "minecraft:air"},
-        {pos: [3, 2, 0], state: "minecraft:air"},
-        {pos: [3, 2, 1], state: "minecraft:air"},
-        {pos: [3, 2, 2], state: "minecraft:air"},
-        {pos: [3, 2, 3], state: "minecraft:air"},
-        {pos: [3, 2, 4], state: "minecraft:air"},
-        {pos: [4, 2, 0], state: "minecraft:air"},
-        {pos: [4, 2, 1], state: "minecraft:air"},
-        {pos: [4, 2, 2], state: "minecraft:air"},
-        {pos: [4, 2, 3], state: "minecraft:air"},
-        {pos: [4, 2, 4], state: "minecraft:air"},
-        {pos: [0, 3, 0], state: "minecraft:air"},
-        {pos: [0, 3, 1], state: "minecraft:air"},
-        {pos: [0, 3, 2], state: "minecraft:air"},
-        {pos: [0, 3, 3], state: "minecraft:air"},
-        {pos: [0, 3, 4], state: "minecraft:air"},
-        {pos: [1, 3, 0], state: "minecraft:air"},
-        {pos: [1, 3, 1], state: "minecraft:air"},
-        {pos: [1, 3, 2], state: "minecraft:air"},
-        {pos: [1, 3, 3], state: "minecraft:air"},
-        {pos: [1, 3, 4], state: "minecraft:air"},
-        {pos: [2, 3, 0], state: "minecraft:air"},
-        {pos: [2, 3, 1], state: "minecraft:air"},
-        {pos: [2, 3, 2], state: "minecraft:air"},
-        {pos: [2, 3, 3], state: "minecraft:air"},
-        {pos: [2, 3, 4], state: "minecraft:air"},
-        {pos: [3, 3, 0], state: "minecraft:air"},
-        {pos: [3, 3, 1], state: "minecraft:air"},
-        {pos: [3, 3, 2], state: "minecraft:air"},
-        {pos: [3, 3, 3], state: "minecraft:air"},
-        {pos: [3, 3, 4], state: "minecraft:air"},
-        {pos: [4, 3, 0], state: "minecraft:air"},
-        {pos: [4, 3, 1], state: "minecraft:air"},
-        {pos: [4, 3, 2], state: "minecraft:air"},
-        {pos: [4, 3, 3], state: "minecraft:air"},
-        {pos: [4, 3, 4], state: "minecraft:air"},
-        {pos: [0, 4, 0], state: "minecraft:air"},
-        {pos: [0, 4, 1], state: "minecraft:air"},
-        {pos: [0, 4, 2], state: "minecraft:air"},
-        {pos: [0, 4, 3], state: "minecraft:air"},
-        {pos: [0, 4, 4], state: "minecraft:air"},
-        {pos: [1, 4, 0], state: "minecraft:air"},
-        {pos: [1, 4, 1], state: "minecraft:air"},
-        {pos: [1, 4, 2], state: "minecraft:air"},
-        {pos: [1, 4, 3], state: "minecraft:air"},
-        {pos: [1, 4, 4], state: "minecraft:air"},
-        {pos: [2, 4, 0], state: "minecraft:air"},
-        {pos: [2, 4, 1], state: "minecraft:air"},
-        {pos: [2, 4, 2], state: "minecraft:air"},
-        {pos: [2, 4, 3], state: "minecraft:air"},
-        {pos: [2, 4, 4], state: "minecraft:air"},
-        {pos: [3, 4, 0], state: "minecraft:air"},
-        {pos: [3, 4, 1], state: "minecraft:air"},
-        {pos: [3, 4, 2], state: "minecraft:air"},
-        {pos: [3, 4, 3], state: "minecraft:air"},
-        {pos: [3, 4, 4], state: "minecraft:air"},
-        {pos: [4, 4, 0], state: "minecraft:air"},
-        {pos: [4, 4, 1], state: "minecraft:air"},
-        {pos: [4, 4, 2], state: "minecraft:air"},
-        {pos: [4, 4, 3], state: "minecraft:air"},
-        {pos: [4, 4, 4], state: "minecraft:air"}
+        {pos: [3, 1, 3], state: "computercraft:wired_modem_full{modem:false,peripheral:false}", nbt: {PeripheralAccess: 0b, id: "computercraft:wired_modem_full"}}
     ],
     entities: [],
     palette: [
         "minecraft:polished_andesite",
-        "minecraft:air",
         "computercraft:wired_modem_full{modem:false,peripheral:false}"
     ]
 }

projects/common/src/testMod/resources/data/cctest/structures/modem_test.gains_peripherals.snbt

@@ -29,109 +29,18 @@
         {pos: [4, 0, 4], state: "minecraft:polished_andesite"},
         {pos: [0, 1, 0], state: "computercraft:printer{bottom:false,facing:north,top:false}", nbt: {Items: [], PageTitle: "", Printing: 0b, id: "computercraft:printer", term_bgColour: 15, term_cursorBlink: 0b, term_cursorX: 0, term_cursorY: 0, term_palette: [I; 1118481, 13388876, 5744206, 8349260, 3368652, 11691749, 5020082, 10066329, 5000268, 15905484, 8375321, 14605932, 10072818, 15040472, 15905331, 15790320], term_textBgColour_0: "fffffffffffffffffffffffff", term_textBgColour_1: "fffffffffffffffffffffffff", term_textBgColour_10: "fffffffffffffffffffffffff", term_textBgColour_11: "fffffffffffffffffffffffff", term_textBgColour_12: "fffffffffffffffffffffffff", term_textBgColour_13: "fffffffffffffffffffffffff", term_textBgColour_14: "fffffffffffffffffffffffff", term_textBgColour_15: "fffffffffffffffffffffffff", term_textBgColour_16: "fffffffffffffffffffffffff", term_textBgColour_17: "fffffffffffffffffffffffff", term_textBgColour_18: "fffffffffffffffffffffffff", term_textBgColour_19: "fffffffffffffffffffffffff", term_textBgColour_2: "fffffffffffffffffffffffff", term_textBgColour_20: "fffffffffffffffffffffffff", term_textBgColour_3: "fffffffffffffffffffffffff", term_textBgColour_4: "fffffffffffffffffffffffff", term_textBgColour_5: "fffffffffffffffffffffffff", term_textBgColour_6: "fffffffffffffffffffffffff", term_textBgColour_7: "fffffffffffffffffffffffff", term_textBgColour_8: "fffffffffffffffffffffffff", term_textBgColour_9: "fffffffffffffffffffffffff", term_textColour: 0, term_textColour_0: "0000000000000000000000000", term_textColour_1: "0000000000000000000000000", term_textColour_10: "0000000000000000000000000", term_textColour_11: "0000000000000000000000000", term_textColour_12: "0000000000000000000000000", term_textColour_13: "0000000000000000000000000", term_textColour_14: "0000000000000000000000000", term_textColour_15: "0000000000000000000000000", term_textColour_16: "0000000000000000000000000", term_textColour_17: "0000000000000000000000000", term_textColour_18: "0000000000000000000000000", term_textColour_19: "0000000000000000000000000", term_textColour_2: "0000000000000000000000000", term_textColour_20: "0000000000000000000000000", term_textColour_3: "0000000000000000000000000", term_textColour_4: "0000000000000000000000000", term_textColour_5: "0000000000000000000000000", term_textColour_6: "0000000000000000000000000", term_textColour_7: "0000000000000000000000000", term_textColour_8: "0000000000000000000000000", term_textColour_9: "0000000000000000000000000", term_text_0: "                         ", term_text_1: "                         ", term_text_10: "                         ", term_text_11: "                         ", term_text_12: "                         ", term_text_13: "                         ", term_text_14: "                         ", term_text_15: "                         ", term_text_16: "                         ", term_text_17: "                         ", term_text_18: "                         ", term_text_19: "                         ", term_text_2: "                         ", term_text_20: "                         ", term_text_3: "                         ", term_text_4: "                         ", term_text_5: "                         ", term_text_6: "                         ", term_text_7: "                         ", term_text_8: "                         ", term_text_9: "                         "}},
         {pos: [0, 1, 1], state: "computercraft:cable{cable:true,down:false,east:true,modem:north_off_peripheral,north:true,south:false,up:false,waterlogged:false,west:false}", nbt: {PeripheralAccess: 1b, PeripheralId: 1, PeripheralType: "printer", id: "computercraft:cable"}},
-        {pos: [0, 1, 2], state: "minecraft:air"},
-        {pos: [0, 1, 3], state: "minecraft:air"},
         {pos: [0, 1, 4], state: "computercraft:monitor_advanced{facing:north,orientation:north,state:none}", nbt: {Height: 1, Width: 1, XIndex: 0, YIndex: 0, id: "computercraft:monitor_advanced"}},
-        {pos: [1, 1, 0], state: "minecraft:air"},
         {pos: [1, 1, 1], state: "computercraft:cable{cable:true,down:false,east:false,modem:none,north:false,south:true,up:false,waterlogged:false,west:true}", nbt: {PeripheralAccess: 0b, id: "computercraft:cable"}},
         {pos: [1, 1, 2], state: "computercraft:cable{cable:true,down:false,east:false,modem:none,north:true,south:true,up:false,waterlogged:false,west:false}", nbt: {PeripheralAccess: 0b, id: "computercraft:cable"}},
         {pos: [1, 1, 3], state: "computercraft:cable{cable:true,down:false,east:false,modem:none,north:true,south:true,up:false,waterlogged:false,west:false}", nbt: {PeripheralAccess: 0b, id: "computercraft:cable"}},
         {pos: [1, 1, 4], state: "computercraft:cable{cable:true,down:false,east:false,modem:west_off_peripheral,north:true,south:false,up:false,waterlogged:false,west:true}", nbt: {PeripheralAccess: 1b, PeripheralId: 1, PeripheralType: "monitor", id: "computercraft:cable"}},
-        {pos: [2, 1, 0], state: "minecraft:air"},
-        {pos: [2, 1, 1], state: "minecraft:air"},
-        {pos: [2, 1, 2], state: "minecraft:air"},
-        {pos: [2, 1, 3], state: "minecraft:air"},
-        {pos: [2, 1, 4], state: "minecraft:air"},
-        {pos: [3, 1, 0], state: "minecraft:air"},
-        {pos: [3, 1, 1], state: "minecraft:air"},
         {pos: [3, 1, 2], state: "computercraft:cable{cable:true,down:false,east:true,modem:none,north:false,south:false,up:false,waterlogged:false,west:false}", nbt: {PeripheralAccess: 0b, id: "computercraft:cable"}},
-        {pos: [3, 1, 3], state: "minecraft:air"},
-        {pos: [3, 1, 4], state: "minecraft:air"},
-        {pos: [4, 1, 0], state: "minecraft:air"},
         {pos: [4, 1, 1], state: "computercraft:computer_advanced{facing:north,state:blinking}", nbt: {ComputerId: 1, Label: "modem_test.gains_peripherals", On: 1b, id: "computercraft:computer_advanced"}},
-        {pos: [4, 1, 2], state: "computercraft:cable{cable:true,down:false,east:false,modem:north_off,north:true,south:false,up:false,waterlogged:false,west:true}", nbt: {PeripheralAccess: 0b, id: "computercraft:cable"}},
-        {pos: [4, 1, 3], state: "minecraft:air"},
-        {pos: [4, 1, 4], state: "minecraft:air"},
-        {pos: [0, 2, 0], state: "minecraft:air"},
-        {pos: [0, 2, 1], state: "minecraft:air"},
-        {pos: [0, 2, 2], state: "minecraft:air"},
-        {pos: [0, 2, 3], state: "minecraft:air"},
-        {pos: [0, 2, 4], state: "minecraft:air"},
-        {pos: [1, 2, 0], state: "minecraft:air"},
-        {pos: [1, 2, 1], state: "minecraft:air"},
-        {pos: [1, 2, 2], state: "minecraft:air"},
-        {pos: [1, 2, 3], state: "minecraft:air"},
-        {pos: [1, 2, 4], state: "minecraft:air"},
-        {pos: [2, 2, 0], state: "minecraft:air"},
-        {pos: [2, 2, 1], state: "minecraft:air"},
-        {pos: [2, 2, 2], state: "minecraft:air"},
-        {pos: [2, 2, 3], state: "minecraft:air"},
-        {pos: [2, 2, 4], state: "minecraft:air"},
-        {pos: [3, 2, 0], state: "minecraft:air"},
-        {pos: [3, 2, 1], state: "minecraft:air"},
-        {pos: [3, 2, 2], state: "minecraft:air"},
-        {pos: [3, 2, 3], state: "minecraft:air"},
-        {pos: [3, 2, 4], state: "minecraft:air"},
-        {pos: [4, 2, 0], state: "minecraft:air"},
-        {pos: [4, 2, 1], state: "minecraft:air"},
-        {pos: [4, 2, 2], state: "minecraft:air"},
-        {pos: [4, 2, 3], state: "minecraft:air"},
-        {pos: [4, 2, 4], state: "minecraft:air"},
-        {pos: [0, 3, 0], state: "minecraft:air"},
-        {pos: [0, 3, 1], state: "minecraft:air"},
-        {pos: [0, 3, 2], state: "minecraft:air"},
-        {pos: [0, 3, 3], state: "minecraft:air"},
-        {pos: [0, 3, 4], state: "minecraft:air"},
-        {pos: [1, 3, 0], state: "minecraft:air"},
-        {pos: [1, 3, 1], state: "minecraft:air"},
-        {pos: [1, 3, 2], state: "minecraft:air"},
-        {pos: [1, 3, 3], state: "minecraft:air"},
-        {pos: [1, 3, 4], state: "minecraft:air"},
-        {pos: [2, 3, 0], state: "minecraft:air"},
-        {pos: [2, 3, 1], state: "minecraft:air"},
-        {pos: [2, 3, 2], state: "minecraft:air"},
-        {pos: [2, 3, 3], state: "minecraft:air"},
-        {pos: [2, 3, 4], state: "minecraft:air"},
-        {pos: [3, 3, 0], state: "minecraft:air"},
-        {pos: [3, 3, 1], state: "minecraft:air"},
-        {pos: [3, 3, 2], state: "minecraft:air"},
-        {pos: [3, 3, 3], state: "minecraft:air"},
-        {pos: [3, 3, 4], state: "minecraft:air"},
-        {pos: [4, 3, 0], state: "minecraft:air"},
-        {pos: [4, 3, 1], state: "minecraft:air"},
-        {pos: [4, 3, 2], state: "minecraft:air"},
-        {pos: [4, 3, 3], state: "minecraft:air"},
-        {pos: [4, 3, 4], state: "minecraft:air"},
-        {pos: [0, 4, 0], state: "minecraft:air"},
-        {pos: [0, 4, 1], state: "minecraft:air"},
-        {pos: [0, 4, 2], state: "minecraft:air"},
-        {pos: [0, 4, 3], state: "minecraft:air"},
-        {pos: [0, 4, 4], state: "minecraft:air"},
-        {pos: [1, 4, 0], state: "minecraft:air"},
-        {pos: [1, 4, 1], state: "minecraft:air"},
-        {pos: [1, 4, 2], state: "minecraft:air"},
-        {pos: [1, 4, 3], state: "minecraft:air"},
-        {pos: [1, 4, 4], state: "minecraft:air"},
-        {pos: [2, 4, 0], state: "minecraft:air"},
-        {pos: [2, 4, 1], state: "minecraft:air"},
-        {pos: [2, 4, 2], state: "minecraft:air"},
-        {pos: [2, 4, 3], state: "minecraft:air"},
-        {pos: [2, 4, 4], state: "minecraft:air"},
-        {pos: [3, 4, 0], state: "minecraft:air"},
-        {pos: [3, 4, 1], state: "minecraft:air"},
-        {pos: [3, 4, 2], state: "minecraft:air"},
-        {pos: [3, 4, 3], state: "minecraft:air"},
-        {pos: [3, 4, 4], state: "minecraft:air"},
-        {pos: [4, 4, 0], state: "minecraft:air"},
-        {pos: [4, 4, 1], state: "minecraft:air"},
-        {pos: [4, 4, 2], state: "minecraft:air"},
-        {pos: [4, 4, 3], state: "minecraft:air"},
-        {pos: [4, 4, 4], state: "minecraft:air"}
+        {pos: [4, 1, 2], state: "computercraft:cable{cable:true,down:false,east:false,modem:north_off,north:true,south:false,up:false,waterlogged:false,west:true}", nbt: {PeripheralAccess: 0b, id: "computercraft:cable"}}
     ],
     entities: [],
     palette: [
         "minecraft:polished_andesite",
-        "minecraft:air",
         "computercraft:printer{bottom:false,facing:north,top:false}",
         "computercraft:cable{cable:true,down:false,east:true,modem:north_off_peripheral,north:true,south:false,up:false,waterlogged:false,west:false}",
         "computercraft:monitor_advanced{facing:north,orientation:north,state:none}",

projects/common/src/testMod/resources/data/cctest/structures/modem_test.have_peripherals.snbt

@@ -30,108 +30,17 @@
         {pos: [0, 1, 0], state: "computercraft:printer{bottom:false,facing:north,top:false}", nbt: {Items: [], PageTitle: "", Printing: 0b, id: "computercraft:printer", term_bgColour: 15, term_cursorBlink: 0b, term_cursorX: 0, term_cursorY: 0, term_palette: [I; 1118481, 13388876, 5744206, 8349260, 3368652, 11691749, 5020082, 10066329, 5000268, 15905484, 8375321, 14605932, 10072818, 15040472, 15905331, 15790320], term_textBgColour_0: "fffffffffffffffffffffffff", term_textBgColour_1: "fffffffffffffffffffffffff", term_textBgColour_10: "fffffffffffffffffffffffff", term_textBgColour_11: "fffffffffffffffffffffffff", term_textBgColour_12: "fffffffffffffffffffffffff", term_textBgColour_13: "fffffffffffffffffffffffff", term_textBgColour_14: "fffffffffffffffffffffffff", term_textBgColour_15: "fffffffffffffffffffffffff", term_textBgColour_16: "fffffffffffffffffffffffff", term_textBgColour_17: "fffffffffffffffffffffffff", term_textBgColour_18: "fffffffffffffffffffffffff", term_textBgColour_19: "fffffffffffffffffffffffff", term_textBgColour_2: "fffffffffffffffffffffffff", term_textBgColour_20: "fffffffffffffffffffffffff", term_textBgColour_3: "fffffffffffffffffffffffff", term_textBgColour_4: "fffffffffffffffffffffffff", term_textBgColour_5: "fffffffffffffffffffffffff", term_textBgColour_6: "fffffffffffffffffffffffff", term_textBgColour_7: "fffffffffffffffffffffffff", term_textBgColour_8: "fffffffffffffffffffffffff", term_textBgColour_9: "fffffffffffffffffffffffff", term_textColour: 0, term_textColour_0: "0000000000000000000000000", term_textColour_1: "0000000000000000000000000", term_textColour_10: "0000000000000000000000000", term_textColour_11: "0000000000000000000000000", term_textColour_12: "0000000000000000000000000", term_textColour_13: "0000000000000000000000000", term_textColour_14: "0000000000000000000000000", term_textColour_15: "0000000000000000000000000", term_textColour_16: "0000000000000000000000000", term_textColour_17: "0000000000000000000000000", term_textColour_18: "0000000000000000000000000", term_textColour_19: "0000000000000000000000000", term_textColour_2: "0000000000000000000000000", term_textColour_20: "0000000000000000000000000", term_textColour_3: "0000000000000000000000000", term_textColour_4: "0000000000000000000000000", term_textColour_5: "0000000000000000000000000", term_textColour_6: "0000000000000000000000000", term_textColour_7: "0000000000000000000000000", term_textColour_8: "0000000000000000000000000", term_textColour_9: "0000000000000000000000000", term_text_0: "                         ", term_text_1: "                         ", term_text_10: "                         ", term_text_11: "                         ", term_text_12: "                         ", term_text_13: "                         ", term_text_14: "                         ", term_text_15: "                         ", term_text_16: "                         ", term_text_17: "                         ", term_text_18: "                         ", term_text_19: "                         ", term_text_2: "                         ", term_text_20: "                         ", term_text_3: "                         ", term_text_4: "                         ", term_text_5: "                         ", term_text_6: "                         ", term_text_7: "                         ", term_text_8: "                         ", term_text_9: "                         "}},
         {pos: [0, 1, 1], state: "computercraft:cable{cable:true,down:false,east:false,modem:north_off_peripheral,north:true,south:true,up:false,waterlogged:false,west:false}", nbt: {PeripheralAccess: 1b, PeripheralId: 0, PeripheralType: "printer", id: "computercraft:cable"}},
         {pos: [0, 1, 2], state: "computercraft:cable{cable:true,down:false,east:true,modem:none,north:true,south:false,up:false,waterlogged:false,west:false}", nbt: {PeripheralAccess: 0b, id: "computercraft:cable"}},
-        {pos: [0, 1, 3], state: "minecraft:air"},
         {pos: [0, 1, 4], state: "computercraft:monitor_advanced{facing:north,orientation:north,state:none}", nbt: {Height: 1, Width: 1, XIndex: 0, YIndex: 0, id: "computercraft:monitor_advanced"}},
-        {pos: [1, 1, 0], state: "minecraft:air"},
-        {pos: [1, 1, 1], state: "minecraft:air"},
         {pos: [1, 1, 2], state: "computercraft:cable{cable:true,down:false,east:true,modem:none,north:false,south:true,up:false,waterlogged:false,west:true}", nbt: {PeripheralAccess: 0b, id: "computercraft:cable"}},
         {pos: [1, 1, 3], state: "computercraft:cable{cable:true,down:false,east:false,modem:none,north:true,south:true,up:false,waterlogged:false,west:false}", nbt: {PeripheralAccess: 0b, id: "computercraft:cable"}},
         {pos: [1, 1, 4], state: "computercraft:cable{cable:true,down:false,east:false,modem:west_off_peripheral,north:true,south:false,up:false,waterlogged:false,west:true}", nbt: {PeripheralAccess: 1b, PeripheralId: 0, PeripheralType: "monitor", id: "computercraft:cable"}},
-        {pos: [2, 1, 0], state: "minecraft:air"},
-        {pos: [2, 1, 1], state: "minecraft:air"},
         {pos: [2, 1, 2], state: "computercraft:cable{cable:true,down:false,east:true,modem:none,north:false,south:false,up:false,waterlogged:false,west:true}", nbt: {PeripheralAccess: 0b, id: "computercraft:cable"}},
-        {pos: [2, 1, 3], state: "minecraft:air"},
-        {pos: [2, 1, 4], state: "minecraft:air"},
-        {pos: [3, 1, 0], state: "minecraft:air"},
-        {pos: [3, 1, 1], state: "minecraft:air"},
         {pos: [3, 1, 2], state: "computercraft:cable{cable:true,down:false,east:true,modem:east_off,north:false,south:false,up:false,waterlogged:false,west:true}", nbt: {PeripheralAccess: 0b, id: "computercraft:cable"}},
-        {pos: [3, 1, 3], state: "minecraft:air"},
-        {pos: [3, 1, 4], state: "minecraft:air"},
-        {pos: [4, 1, 0], state: "minecraft:air"},
-        {pos: [4, 1, 1], state: "minecraft:air"},
-        {pos: [4, 1, 2], state: "computercraft:computer_advanced{facing:north,state:blinking}", nbt: {ComputerId: 1, Label: "modem_test.have_peripherals", On: 1b, id: "computercraft:computer_advanced"}},
-        {pos: [4, 1, 3], state: "minecraft:air"},
-        {pos: [4, 1, 4], state: "minecraft:air"},
-        {pos: [0, 2, 0], state: "minecraft:air"},
-        {pos: [0, 2, 1], state: "minecraft:air"},
-        {pos: [0, 2, 2], state: "minecraft:air"},
-        {pos: [0, 2, 3], state: "minecraft:air"},
-        {pos: [0, 2, 4], state: "minecraft:air"},
-        {pos: [1, 2, 0], state: "minecraft:air"},
-        {pos: [1, 2, 1], state: "minecraft:air"},
-        {pos: [1, 2, 2], state: "minecraft:air"},
-        {pos: [1, 2, 3], state: "minecraft:air"},
-        {pos: [1, 2, 4], state: "minecraft:air"},
-        {pos: [2, 2, 0], state: "minecraft:air"},
-        {pos: [2, 2, 1], state: "minecraft:air"},
-        {pos: [2, 2, 2], state: "minecraft:air"},
-        {pos: [2, 2, 3], state: "minecraft:air"},
-        {pos: [2, 2, 4], state: "minecraft:air"},
-        {pos: [3, 2, 0], state: "minecraft:air"},
-        {pos: [3, 2, 1], state: "minecraft:air"},
-        {pos: [3, 2, 2], state: "minecraft:air"},
-        {pos: [3, 2, 3], state: "minecraft:air"},
-        {pos: [3, 2, 4], state: "minecraft:air"},
-        {pos: [4, 2, 0], state: "minecraft:air"},
-        {pos: [4, 2, 1], state: "minecraft:air"},
-        {pos: [4, 2, 2], state: "minecraft:air"},
-        {pos: [4, 2, 3], state: "minecraft:air"},
-        {pos: [4, 2, 4], state: "minecraft:air"},
-        {pos: [0, 3, 0], state: "minecraft:air"},
-        {pos: [0, 3, 1], state: "minecraft:air"},
-        {pos: [0, 3, 2], state: "minecraft:air"},
-        {pos: [0, 3, 3], state: "minecraft:air"},
-        {pos: [0, 3, 4], state: "minecraft:air"},
-        {pos: [1, 3, 0], state: "minecraft:air"},
-        {pos: [1, 3, 1], state: "minecraft:air"},
-        {pos: [1, 3, 2], state: "minecraft:air"},
-        {pos: [1, 3, 3], state: "minecraft:air"},
-        {pos: [1, 3, 4], state: "minecraft:air"},
-        {pos: [2, 3, 0], state: "minecraft:air"},
-        {pos: [2, 3, 1], state: "minecraft:air"},
-        {pos: [2, 3, 2], state: "minecraft:air"},
-        {pos: [2, 3, 3], state: "minecraft:air"},
-        {pos: [2, 3, 4], state: "minecraft:air"},
-        {pos: [3, 3, 0], state: "minecraft:air"},
-        {pos: [3, 3, 1], state: "minecraft:air"},
-        {pos: [3, 3, 2], state: "minecraft:air"},
-        {pos: [3, 3, 3], state: "minecraft:air"},
-        {pos: [3, 3, 4], state: "minecraft:air"},
-        {pos: [4, 3, 0], state: "minecraft:air"},
-        {pos: [4, 3, 1], state: "minecraft:air"},
-        {pos: [4, 3, 2], state: "minecraft:air"},
-        {pos: [4, 3, 3], state: "minecraft:air"},
-        {pos: [4, 3, 4], state: "minecraft:air"},
-        {pos: [0, 4, 0], state: "minecraft:air"},
-        {pos: [0, 4, 1], state: "minecraft:air"},
-        {pos: [0, 4, 2], state: "minecraft:air"},
-        {pos: [0, 4, 3], state: "minecraft:air"},
-        {pos: [0, 4, 4], state: "minecraft:air"},
-        {pos: [1, 4, 0], state: "minecraft:air"},
-        {pos: [1, 4, 1], state: "minecraft:air"},
-        {pos: [1, 4, 2], state: "minecraft:air"},
-        {pos: [1, 4, 3], state: "minecraft:air"},
-        {pos: [1, 4, 4], state: "minecraft:air"},
-        {pos: [2, 4, 0], state: "minecraft:air"},
-        {pos: [2, 4, 1], state: "minecraft:air"},
-        {pos: [2, 4, 2], state: "minecraft:air"},
-        {pos: [2, 4, 3], state: "minecraft:air"},
-        {pos: [2, 4, 4], state: "minecraft:air"},
-        {pos: [3, 4, 0], state: "minecraft:air"},
-        {pos: [3, 4, 1], state: "minecraft:air"},
-        {pos: [3, 4, 2], state: "minecraft:air"},
-        {pos: [3, 4, 3], state: "minecraft:air"},
-        {pos: [3, 4, 4], state: "minecraft:air"},
-        {pos: [4, 4, 0], state: "minecraft:air"},
-        {pos: [4, 4, 1], state: "minecraft:air"},
-        {pos: [4, 4, 2], state: "minecraft:air"},
-        {pos: [4, 4, 3], state: "minecraft:air"},
-        {pos: [4, 4, 4], state: "minecraft:air"}
+        {pos: [4, 1, 2], state: "computercraft:computer_advanced{facing:north,state:blinking}", nbt: {ComputerId: 1, Label: "modem_test.have_peripherals", On: 1b, id: "computercraft:computer_advanced"}}
     ],
     entities: [],
     palette: [
         "minecraft:polished_andesite",
-        "minecraft:air",
         "computercraft:printer{bottom:false,facing:north,top:false}",
         "computercraft:cable{cable:true,down:false,east:false,modem:north_off_peripheral,north:true,south:true,up:false,waterlogged:false,west:false}",
         "computercraft:cable{cable:true,down:false,east:true,modem:none,north:true,south:false,up:false,waterlogged:false,west:false}",

projects/common/src/testMod/resources/data/cctest/structures/modem_test.modem_drops_when_neighbour_removed.snbt

@@ -27,112 +27,29 @@
         {pos: [4, 0, 2], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 3], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 4], state: "minecraft:polished_andesite"},
-        {pos: [0, 1, 0], state: "minecraft:air"},
-        {pos: [0, 1, 1], state: "minecraft:air"},
-        {pos: [0, 1, 2], state: "minecraft:air"},
-        {pos: [0, 1, 3], state: "minecraft:air"},
-        {pos: [0, 1, 4], state: "minecraft:air"},
-        {pos: [1, 1, 0], state: "minecraft:air"},
         {pos: [1, 1, 1], state: "minecraft:light_gray_stained_glass"},
         {pos: [1, 1, 2], state: "minecraft:light_gray_stained_glass"},
         {pos: [1, 1, 3], state: "minecraft:light_gray_stained_glass"},
-        {pos: [1, 1, 4], state: "minecraft:air"},
-        {pos: [2, 1, 0], state: "minecraft:air"},
         {pos: [2, 1, 1], state: "minecraft:light_gray_stained_glass"},
         {pos: [2, 1, 2], state: "computercraft:cable{cable:false,down:false,east:false,modem:up_off,north:false,south:false,up:false,waterlogged:false,west:false}", nbt: {id: "computercraft:cable"}},
         {pos: [2, 1, 3], state: "minecraft:light_gray_stained_glass"},
-        {pos: [2, 1, 4], state: "minecraft:air"},
-        {pos: [3, 1, 0], state: "minecraft:air"},
         {pos: [3, 1, 1], state: "minecraft:light_gray_stained_glass"},
         {pos: [3, 1, 2], state: "minecraft:light_gray_stained_glass"},
         {pos: [3, 1, 3], state: "minecraft:light_gray_stained_glass"},
-        {pos: [3, 1, 4], state: "minecraft:air"},
-        {pos: [4, 1, 0], state: "minecraft:air"},
-        {pos: [4, 1, 1], state: "minecraft:air"},
-        {pos: [4, 1, 2], state: "minecraft:air"},
-        {pos: [4, 1, 3], state: "minecraft:air"},
-        {pos: [4, 1, 4], state: "minecraft:air"},
-        {pos: [0, 2, 0], state: "minecraft:air"},
-        {pos: [0, 2, 1], state: "minecraft:air"},
-        {pos: [0, 2, 2], state: "minecraft:air"},
-        {pos: [0, 2, 3], state: "minecraft:air"},
-        {pos: [0, 2, 4], state: "minecraft:air"},
-        {pos: [1, 2, 0], state: "minecraft:air"},
         {pos: [1, 2, 1], state: "minecraft:light_gray_stained_glass"},
         {pos: [1, 2, 2], state: "minecraft:light_gray_stained_glass"},
         {pos: [1, 2, 3], state: "minecraft:light_gray_stained_glass"},
-        {pos: [1, 2, 4], state: "minecraft:air"},
-        {pos: [2, 2, 0], state: "minecraft:air"},
         {pos: [2, 2, 1], state: "minecraft:light_gray_stained_glass"},
         {pos: [2, 2, 2], state: "minecraft:light_gray_stained_glass"},
         {pos: [2, 2, 3], state: "minecraft:light_gray_stained_glass"},
-        {pos: [2, 2, 4], state: "minecraft:air"},
-        {pos: [3, 2, 0], state: "minecraft:air"},
         {pos: [3, 2, 1], state: "minecraft:light_gray_stained_glass"},
         {pos: [3, 2, 2], state: "minecraft:light_gray_stained_glass"},
-        {pos: [3, 2, 3], state: "minecraft:light_gray_stained_glass"},
-        {pos: [3, 2, 4], state: "minecraft:air"},
-        {pos: [4, 2, 0], state: "minecraft:air"},
-        {pos: [4, 2, 1], state: "minecraft:air"},
-        {pos: [4, 2, 2], state: "minecraft:air"},
-        {pos: [4, 2, 3], state: "minecraft:air"},
-        {pos: [4, 2, 4], state: "minecraft:air"},
-        {pos: [0, 3, 0], state: "minecraft:air"},
-        {pos: [0, 3, 1], state: "minecraft:air"},
-        {pos: [0, 3, 2], state: "minecraft:air"},
-        {pos: [0, 3, 3], state: "minecraft:air"},
-        {pos: [0, 3, 4], state: "minecraft:air"},
-        {pos: [1, 3, 0], state: "minecraft:air"},
-        {pos: [1, 3, 1], state: "minecraft:air"},
-        {pos: [1, 3, 2], state: "minecraft:air"},
-        {pos: [1, 3, 3], state: "minecraft:air"},
-        {pos: [1, 3, 4], state: "minecraft:air"},
-        {pos: [2, 3, 0], state: "minecraft:air"},
-        {pos: [2, 3, 1], state: "minecraft:air"},
-        {pos: [2, 3, 2], state: "minecraft:air"},
-        {pos: [2, 3, 3], state: "minecraft:air"},
-        {pos: [2, 3, 4], state: "minecraft:air"},
-        {pos: [3, 3, 0], state: "minecraft:air"},
-        {pos: [3, 3, 1], state: "minecraft:air"},
-        {pos: [3, 3, 2], state: "minecraft:air"},
-        {pos: [3, 3, 3], state: "minecraft:air"},
-        {pos: [3, 3, 4], state: "minecraft:air"},
-        {pos: [4, 3, 0], state: "minecraft:air"},
-        {pos: [4, 3, 1], state: "minecraft:air"},
-        {pos: [4, 3, 2], state: "minecraft:air"},
-        {pos: [4, 3, 3], state: "minecraft:air"},
-        {pos: [4, 3, 4], state: "minecraft:air"},
-        {pos: [0, 4, 0], state: "minecraft:air"},
-        {pos: [0, 4, 1], state: "minecraft:air"},
-        {pos: [0, 4, 2], state: "minecraft:air"},
-        {pos: [0, 4, 3], state: "minecraft:air"},
-        {pos: [0, 4, 4], state: "minecraft:air"},
-        {pos: [1, 4, 0], state: "minecraft:air"},
-        {pos: [1, 4, 1], state: "minecraft:air"},
-        {pos: [1, 4, 2], state: "minecraft:air"},
-        {pos: [1, 4, 3], state: "minecraft:air"},
-        {pos: [1, 4, 4], state: "minecraft:air"},
-        {pos: [2, 4, 0], state: "minecraft:air"},
-        {pos: [2, 4, 1], state: "minecraft:air"},
-        {pos: [2, 4, 2], state: "minecraft:air"},
-        {pos: [2, 4, 3], state: "minecraft:air"},
-        {pos: [2, 4, 4], state: "minecraft:air"},
-        {pos: [3, 4, 0], state: "minecraft:air"},
-        {pos: [3, 4, 1], state: "minecraft:air"},
-        {pos: [3, 4, 2], state: "minecraft:air"},
-        {pos: [3, 4, 3], state: "minecraft:air"},
-        {pos: [3, 4, 4], state: "minecraft:air"},
-        {pos: [4, 4, 0], state: "minecraft:air"},
-        {pos: [4, 4, 1], state: "minecraft:air"},
-        {pos: [4, 4, 2], state: "minecraft:air"},
-        {pos: [4, 4, 3], state: "minecraft:air"},
-        {pos: [4, 4, 4], state: "minecraft:air"}
+        {pos: [3, 2, 3], state: "minecraft:light_gray_stained_glass"}
     ],
     entities: [],
     palette: [
         "minecraft:polished_andesite",
         "minecraft:light_gray_stained_glass",
-        "minecraft:air",
         "computercraft:cable{cable:false,down:false,east:false,modem:up_off,north:false,south:false,up:false,waterlogged:false,west:false}"
     ]
 }

projects/common/src/testMod/resources/data/cctest/structures/modem_test.modem_keeps_cable_when_neighbour_removed.snbt

@@ -27,112 +27,29 @@
         {pos: [4, 0, 2], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 3], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 4], state: "minecraft:polished_andesite"},
-        {pos: [0, 1, 0], state: "minecraft:air"},
-        {pos: [0, 1, 1], state: "minecraft:air"},
-        {pos: [0, 1, 2], state: "minecraft:air"},
-        {pos: [0, 1, 3], state: "minecraft:air"},
-        {pos: [0, 1, 4], state: "minecraft:air"},
-        {pos: [1, 1, 0], state: "minecraft:air"},
         {pos: [1, 1, 1], state: "minecraft:light_gray_stained_glass"},
         {pos: [1, 1, 2], state: "minecraft:light_gray_stained_glass"},
         {pos: [1, 1, 3], state: "minecraft:light_gray_stained_glass"},
-        {pos: [1, 1, 4], state: "minecraft:air"},
-        {pos: [2, 1, 0], state: "minecraft:air"},
         {pos: [2, 1, 1], state: "minecraft:light_gray_stained_glass"},
         {pos: [2, 1, 2], state: "computercraft:cable{cable:true,down:false,east:false,modem:up_off,north:false,south:false,up:true,waterlogged:false,west:false}", nbt: {id: "computercraft:cable"}},
         {pos: [2, 1, 3], state: "minecraft:light_gray_stained_glass"},
-        {pos: [2, 1, 4], state: "minecraft:air"},
-        {pos: [3, 1, 0], state: "minecraft:air"},
         {pos: [3, 1, 1], state: "minecraft:light_gray_stained_glass"},
         {pos: [3, 1, 2], state: "minecraft:light_gray_stained_glass"},
         {pos: [3, 1, 3], state: "minecraft:light_gray_stained_glass"},
-        {pos: [3, 1, 4], state: "minecraft:air"},
-        {pos: [4, 1, 0], state: "minecraft:air"},
-        {pos: [4, 1, 1], state: "minecraft:air"},
-        {pos: [4, 1, 2], state: "minecraft:air"},
-        {pos: [4, 1, 3], state: "minecraft:air"},
-        {pos: [4, 1, 4], state: "minecraft:air"},
-        {pos: [0, 2, 0], state: "minecraft:air"},
-        {pos: [0, 2, 1], state: "minecraft:air"},
-        {pos: [0, 2, 2], state: "minecraft:air"},
-        {pos: [0, 2, 3], state: "minecraft:air"},
-        {pos: [0, 2, 4], state: "minecraft:air"},
-        {pos: [1, 2, 0], state: "minecraft:air"},
         {pos: [1, 2, 1], state: "minecraft:light_gray_stained_glass"},
         {pos: [1, 2, 2], state: "minecraft:light_gray_stained_glass"},
         {pos: [1, 2, 3], state: "minecraft:light_gray_stained_glass"},
-        {pos: [1, 2, 4], state: "minecraft:air"},
-        {pos: [2, 2, 0], state: "minecraft:air"},
         {pos: [2, 2, 1], state: "minecraft:light_gray_stained_glass"},
         {pos: [2, 2, 2], state: "minecraft:light_gray_stained_glass"},
         {pos: [2, 2, 3], state: "minecraft:light_gray_stained_glass"},
-        {pos: [2, 2, 4], state: "minecraft:air"},
-        {pos: [3, 2, 0], state: "minecraft:air"},
         {pos: [3, 2, 1], state: "minecraft:light_gray_stained_glass"},
         {pos: [3, 2, 2], state: "minecraft:light_gray_stained_glass"},
-        {pos: [3, 2, 3], state: "minecraft:light_gray_stained_glass"},
-        {pos: [3, 2, 4], state: "minecraft:air"},
-        {pos: [4, 2, 0], state: "minecraft:air"},
-        {pos: [4, 2, 1], state: "minecraft:air"},
-        {pos: [4, 2, 2], state: "minecraft:air"},
-        {pos: [4, 2, 3], state: "minecraft:air"},
-        {pos: [4, 2, 4], state: "minecraft:air"},
-        {pos: [0, 3, 0], state: "minecraft:air"},
-        {pos: [0, 3, 1], state: "minecraft:air"},
-        {pos: [0, 3, 2], state: "minecraft:air"},
-        {pos: [0, 3, 3], state: "minecraft:air"},
-        {pos: [0, 3, 4], state: "minecraft:air"},
-        {pos: [1, 3, 0], state: "minecraft:air"},
-        {pos: [1, 3, 1], state: "minecraft:air"},
-        {pos: [1, 3, 2], state: "minecraft:air"},
-        {pos: [1, 3, 3], state: "minecraft:air"},
-        {pos: [1, 3, 4], state: "minecraft:air"},
-        {pos: [2, 3, 0], state: "minecraft:air"},
-        {pos: [2, 3, 1], state: "minecraft:air"},
-        {pos: [2, 3, 2], state: "minecraft:air"},
-        {pos: [2, 3, 3], state: "minecraft:air"},
-        {pos: [2, 3, 4], state: "minecraft:air"},
-        {pos: [3, 3, 0], state: "minecraft:air"},
-        {pos: [3, 3, 1], state: "minecraft:air"},
-        {pos: [3, 3, 2], state: "minecraft:air"},
-        {pos: [3, 3, 3], state: "minecraft:air"},
-        {pos: [3, 3, 4], state: "minecraft:air"},
-        {pos: [4, 3, 0], state: "minecraft:air"},
-        {pos: [4, 3, 1], state: "minecraft:air"},
-        {pos: [4, 3, 2], state: "minecraft:air"},
-        {pos: [4, 3, 3], state: "minecraft:air"},
-        {pos: [4, 3, 4], state: "minecraft:air"},
-        {pos: [0, 4, 0], state: "minecraft:air"},
-        {pos: [0, 4, 1], state: "minecraft:air"},
-        {pos: [0, 4, 2], state: "minecraft:air"},
-        {pos: [0, 4, 3], state: "minecraft:air"},
-        {pos: [0, 4, 4], state: "minecraft:air"},
-        {pos: [1, 4, 0], state: "minecraft:air"},
-        {pos: [1, 4, 1], state: "minecraft:air"},
-        {pos: [1, 4, 2], state: "minecraft:air"},
-        {pos: [1, 4, 3], state: "minecraft:air"},
-        {pos: [1, 4, 4], state: "minecraft:air"},
-        {pos: [2, 4, 0], state: "minecraft:air"},
-        {pos: [2, 4, 1], state: "minecraft:air"},
-        {pos: [2, 4, 2], state: "minecraft:air"},
-        {pos: [2, 4, 3], state: "minecraft:air"},
-        {pos: [2, 4, 4], state: "minecraft:air"},
-        {pos: [3, 4, 0], state: "minecraft:air"},
-        {pos: [3, 4, 1], state: "minecraft:air"},
-        {pos: [3, 4, 2], state: "minecraft:air"},
-        {pos: [3, 4, 3], state: "minecraft:air"},
-        {pos: [3, 4, 4], state: "minecraft:air"},
-        {pos: [4, 4, 0], state: "minecraft:air"},
-        {pos: [4, 4, 1], state: "minecraft:air"},
-        {pos: [4, 4, 2], state: "minecraft:air"},
-        {pos: [4, 4, 3], state: "minecraft:air"},
-        {pos: [4, 4, 4], state: "minecraft:air"}
+        {pos: [3, 2, 3], state: "minecraft:light_gray_stained_glass"}
     ],
     entities: [],
     palette: [
         "minecraft:polished_andesite",
         "minecraft:light_gray_stained_glass",
-        "minecraft:air",
         "computercraft:cable{cable:true,down:false,east:false,modem:up_off,north:false,south:false,up:true,waterlogged:false,west:false}"
     ]
 }

projects/common/src/testMod/resources/data/cctest/structures/modem_test.transmits_messages.snbt

@@ -27,111 +27,15 @@
         {pos: [4, 0, 2], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 3], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 4], state: "minecraft:polished_andesite"},
-        {pos: [0, 1, 0], state: "minecraft:air"},
-        {pos: [0, 1, 1], state: "minecraft:air"},
-        {pos: [0, 1, 2], state: "minecraft:air"},
-        {pos: [0, 1, 3], state: "minecraft:air"},
-        {pos: [0, 1, 4], state: "minecraft:air"},
-        {pos: [1, 1, 0], state: "minecraft:air"},
-        {pos: [1, 1, 1], state: "minecraft:air"},
-        {pos: [1, 1, 2], state: "minecraft:air"},
         {pos: [1, 1, 3], state: "computercraft:computer_advanced{facing:north,state:blinking}", nbt: {ComputerId: 1, Label: "modem_test.transmits_messages.receive", On: 1b, id: "computercraft:computer_advanced"}},
-        {pos: [1, 1, 4], state: "minecraft:air"},
-        {pos: [2, 1, 0], state: "minecraft:air"},
         {pos: [2, 1, 1], state: "computercraft:cable{cable:true,down:false,east:true,modem:east_off,north:false,south:true,up:false,waterlogged:false,west:false}", nbt: {PeripheralAccess: 0b, id: "computercraft:cable"}},
         {pos: [2, 1, 2], state: "computercraft:cable{cable:true,down:false,east:false,modem:none,north:true,south:true,up:false,waterlogged:false,west:false}", nbt: {PeripheralAccess: 0b, id: "computercraft:cable"}},
         {pos: [2, 1, 3], state: "computercraft:cable{cable:true,down:false,east:false,modem:west_off,north:true,south:false,up:false,waterlogged:false,west:true}", nbt: {PeripheralAccess: 0b, id: "computercraft:cable"}},
-        {pos: [2, 1, 4], state: "minecraft:air"},
-        {pos: [3, 1, 0], state: "minecraft:air"},
-        {pos: [3, 1, 1], state: "computercraft:computer_advanced{facing:north,state:blinking}", nbt: {ComputerId: 1, Label: "modem_test.transmits_messages.send", On: 1b, id: "computercraft:computer_advanced"}},
-        {pos: [3, 1, 2], state: "minecraft:air"},
-        {pos: [3, 1, 3], state: "minecraft:air"},
-        {pos: [3, 1, 4], state: "minecraft:air"},
-        {pos: [4, 1, 0], state: "minecraft:air"},
-        {pos: [4, 1, 1], state: "minecraft:air"},
-        {pos: [4, 1, 2], state: "minecraft:air"},
-        {pos: [4, 1, 3], state: "minecraft:air"},
-        {pos: [4, 1, 4], state: "minecraft:air"},
-        {pos: [0, 2, 0], state: "minecraft:air"},
-        {pos: [0, 2, 1], state: "minecraft:air"},
-        {pos: [0, 2, 2], state: "minecraft:air"},
-        {pos: [0, 2, 3], state: "minecraft:air"},
-        {pos: [0, 2, 4], state: "minecraft:air"},
-        {pos: [1, 2, 0], state: "minecraft:air"},
-        {pos: [1, 2, 1], state: "minecraft:air"},
-        {pos: [1, 2, 2], state: "minecraft:air"},
-        {pos: [1, 2, 3], state: "minecraft:air"},
-        {pos: [1, 2, 4], state: "minecraft:air"},
-        {pos: [2, 2, 0], state: "minecraft:air"},
-        {pos: [2, 2, 1], state: "minecraft:air"},
-        {pos: [2, 2, 2], state: "minecraft:air"},
-        {pos: [2, 2, 3], state: "minecraft:air"},
-        {pos: [2, 2, 4], state: "minecraft:air"},
-        {pos: [3, 2, 0], state: "minecraft:air"},
-        {pos: [3, 2, 1], state: "minecraft:air"},
-        {pos: [3, 2, 2], state: "minecraft:air"},
-        {pos: [3, 2, 3], state: "minecraft:air"},
-        {pos: [3, 2, 4], state: "minecraft:air"},
-        {pos: [4, 2, 0], state: "minecraft:air"},
-        {pos: [4, 2, 1], state: "minecraft:air"},
-        {pos: [4, 2, 2], state: "minecraft:air"},
-        {pos: [4, 2, 3], state: "minecraft:air"},
-        {pos: [4, 2, 4], state: "minecraft:air"},
-        {pos: [0, 3, 0], state: "minecraft:air"},
-        {pos: [0, 3, 1], state: "minecraft:air"},
-        {pos: [0, 3, 2], state: "minecraft:air"},
-        {pos: [0, 3, 3], state: "minecraft:air"},
-        {pos: [0, 3, 4], state: "minecraft:air"},
-        {pos: [1, 3, 0], state: "minecraft:air"},
-        {pos: [1, 3, 1], state: "minecraft:air"},
-        {pos: [1, 3, 2], state: "minecraft:air"},
-        {pos: [1, 3, 3], state: "minecraft:air"},
-        {pos: [1, 3, 4], state: "minecraft:air"},
-        {pos: [2, 3, 0], state: "minecraft:air"},
-        {pos: [2, 3, 1], state: "minecraft:air"},
-        {pos: [2, 3, 2], state: "minecraft:air"},
-        {pos: [2, 3, 3], state: "minecraft:air"},
-        {pos: [2, 3, 4], state: "minecraft:air"},
-        {pos: [3, 3, 0], state: "minecraft:air"},
-        {pos: [3, 3, 1], state: "minecraft:air"},
-        {pos: [3, 3, 2], state: "minecraft:air"},
-        {pos: [3, 3, 3], state: "minecraft:air"},
-        {pos: [3, 3, 4], state: "minecraft:air"},
-        {pos: [4, 3, 0], state: "minecraft:air"},
-        {pos: [4, 3, 1], state: "minecraft:air"},
-        {pos: [4, 3, 2], state: "minecraft:air"},
-        {pos: [4, 3, 3], state: "minecraft:air"},
-        {pos: [4, 3, 4], state: "minecraft:air"},
-        {pos: [0, 4, 0], state: "minecraft:air"},
-        {pos: [0, 4, 1], state: "minecraft:air"},
-        {pos: [0, 4, 2], state: "minecraft:air"},
-        {pos: [0, 4, 3], state: "minecraft:air"},
-        {pos: [0, 4, 4], state: "minecraft:air"},
-        {pos: [1, 4, 0], state: "minecraft:air"},
-        {pos: [1, 4, 1], state: "minecraft:air"},
-        {pos: [1, 4, 2], state: "minecraft:air"},
-        {pos: [1, 4, 3], state: "minecraft:air"},
-        {pos: [1, 4, 4], state: "minecraft:air"},
-        {pos: [2, 4, 0], state: "minecraft:air"},
-        {pos: [2, 4, 1], state: "minecraft:air"},
-        {pos: [2, 4, 2], state: "minecraft:air"},
-        {pos: [2, 4, 3], state: "minecraft:air"},
-        {pos: [2, 4, 4], state: "minecraft:air"},
-        {pos: [3, 4, 0], state: "minecraft:air"},
-        {pos: [3, 4, 1], state: "minecraft:air"},
-        {pos: [3, 4, 2], state: "minecraft:air"},
-        {pos: [3, 4, 3], state: "minecraft:air"},
-        {pos: [3, 4, 4], state: "minecraft:air"},
-        {pos: [4, 4, 0], state: "minecraft:air"},
-        {pos: [4, 4, 1], state: "minecraft:air"},
-        {pos: [4, 4, 2], state: "minecraft:air"},
-        {pos: [4, 4, 3], state: "minecraft:air"},
-        {pos: [4, 4, 4], state: "minecraft:air"}
+        {pos: [3, 1, 1], state: "computercraft:computer_advanced{facing:north,state:blinking}", nbt: {ComputerId: 1, Label: "modem_test.transmits_messages.send", On: 1b, id: "computercraft:computer_advanced"}}
     ],
     entities: [],
     palette: [
         "minecraft:polished_andesite",
-        "minecraft:air",
         "computercraft:computer_advanced{facing:north,state:blinking}",
         "computercraft:cable{cable:true,down:false,east:true,modem:east_off,north:false,south:true,up:false,waterlogged:false,west:false}",
         "computercraft:cable{cable:true,down:false,east:false,modem:none,north:true,south:true,up:false,waterlogged:false,west:false}",

projects/common/src/testMod/resources/data/cctest/structures/monitor_test.contract_on_destroy.snbt

@@ -27,111 +27,13 @@
         {pos: [4, 0, 2], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 3], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 4], state: "minecraft:polished_andesite"},
-        {pos: [0, 1, 0], state: "minecraft:air"},
-        {pos: [0, 1, 1], state: "minecraft:air"},
-        {pos: [0, 1, 2], state: "minecraft:air"},
-        {pos: [0, 1, 3], state: "minecraft:air"},
-        {pos: [0, 1, 4], state: "minecraft:air"},
-        {pos: [1, 1, 0], state: "minecraft:air"},
-        {pos: [1, 1, 1], state: "minecraft:air"},
         {pos: [1, 1, 2], state: "computercraft:monitor_advanced{facing:north,orientation:north,state:l}", nbt: {ForgeCaps: {}, Height: 1, Width: 3, XIndex: 2, YIndex: 0, id: "computercraft:monitor_advanced"}},
-        {pos: [1, 1, 3], state: "minecraft:air"},
-        {pos: [1, 1, 4], state: "minecraft:air"},
-        {pos: [2, 1, 0], state: "minecraft:air"},
-        {pos: [2, 1, 1], state: "minecraft:air"},
         {pos: [2, 1, 2], state: "computercraft:monitor_advanced{facing:north,orientation:north,state:lr}", nbt: {ForgeCaps: {}, Height: 1, Width: 3, XIndex: 1, YIndex: 0, id: "computercraft:monitor_advanced"}},
-        {pos: [2, 1, 3], state: "minecraft:air"},
-        {pos: [2, 1, 4], state: "minecraft:air"},
-        {pos: [3, 1, 0], state: "minecraft:air"},
-        {pos: [3, 1, 1], state: "minecraft:air"},
-        {pos: [3, 1, 2], state: "computercraft:monitor_advanced{facing:north,orientation:north,state:r}", nbt: {ForgeCaps: {}, Height: 1, Width: 3, XIndex: 0, YIndex: 0, id: "computercraft:monitor_advanced"}},
-        {pos: [3, 1, 3], state: "minecraft:air"},
-        {pos: [3, 1, 4], state: "minecraft:air"},
-        {pos: [4, 1, 0], state: "minecraft:air"},
-        {pos: [4, 1, 1], state: "minecraft:air"},
-        {pos: [4, 1, 2], state: "minecraft:air"},
-        {pos: [4, 1, 3], state: "minecraft:air"},
-        {pos: [4, 1, 4], state: "minecraft:air"},
-        {pos: [0, 2, 0], state: "minecraft:air"},
-        {pos: [0, 2, 1], state: "minecraft:air"},
-        {pos: [0, 2, 2], state: "minecraft:air"},
-        {pos: [0, 2, 3], state: "minecraft:air"},
-        {pos: [0, 2, 4], state: "minecraft:air"},
-        {pos: [1, 2, 0], state: "minecraft:air"},
-        {pos: [1, 2, 1], state: "minecraft:air"},
-        {pos: [1, 2, 2], state: "minecraft:air"},
-        {pos: [1, 2, 3], state: "minecraft:air"},
-        {pos: [1, 2, 4], state: "minecraft:air"},
-        {pos: [2, 2, 0], state: "minecraft:air"},
-        {pos: [2, 2, 1], state: "minecraft:air"},
-        {pos: [2, 2, 2], state: "minecraft:air"},
-        {pos: [2, 2, 3], state: "minecraft:air"},
-        {pos: [2, 2, 4], state: "minecraft:air"},
-        {pos: [3, 2, 0], state: "minecraft:air"},
-        {pos: [3, 2, 1], state: "minecraft:air"},
-        {pos: [3, 2, 2], state: "minecraft:air"},
-        {pos: [3, 2, 3], state: "minecraft:air"},
-        {pos: [3, 2, 4], state: "minecraft:air"},
-        {pos: [4, 2, 0], state: "minecraft:air"},
-        {pos: [4, 2, 1], state: "minecraft:air"},
-        {pos: [4, 2, 2], state: "minecraft:air"},
-        {pos: [4, 2, 3], state: "minecraft:air"},
-        {pos: [4, 2, 4], state: "minecraft:air"},
-        {pos: [0, 3, 0], state: "minecraft:air"},
-        {pos: [0, 3, 1], state: "minecraft:air"},
-        {pos: [0, 3, 2], state: "minecraft:air"},
-        {pos: [0, 3, 3], state: "minecraft:air"},
-        {pos: [0, 3, 4], state: "minecraft:air"},
-        {pos: [1, 3, 0], state: "minecraft:air"},
-        {pos: [1, 3, 1], state: "minecraft:air"},
-        {pos: [1, 3, 2], state: "minecraft:air"},
-        {pos: [1, 3, 3], state: "minecraft:air"},
-        {pos: [1, 3, 4], state: "minecraft:air"},
-        {pos: [2, 3, 0], state: "minecraft:air"},
-        {pos: [2, 3, 1], state: "minecraft:air"},
-        {pos: [2, 3, 2], state: "minecraft:air"},
-        {pos: [2, 3, 3], state: "minecraft:air"},
-        {pos: [2, 3, 4], state: "minecraft:air"},
-        {pos: [3, 3, 0], state: "minecraft:air"},
-        {pos: [3, 3, 1], state: "minecraft:air"},
-        {pos: [3, 3, 2], state: "minecraft:air"},
-        {pos: [3, 3, 3], state: "minecraft:air"},
-        {pos: [3, 3, 4], state: "minecraft:air"},
-        {pos: [4, 3, 0], state: "minecraft:air"},
-        {pos: [4, 3, 1], state: "minecraft:air"},
-        {pos: [4, 3, 2], state: "minecraft:air"},
-        {pos: [4, 3, 3], state: "minecraft:air"},
-        {pos: [4, 3, 4], state: "minecraft:air"},
-        {pos: [0, 4, 0], state: "minecraft:air"},
-        {pos: [0, 4, 1], state: "minecraft:air"},
-        {pos: [0, 4, 2], state: "minecraft:air"},
-        {pos: [0, 4, 3], state: "minecraft:air"},
-        {pos: [0, 4, 4], state: "minecraft:air"},
-        {pos: [1, 4, 0], state: "minecraft:air"},
-        {pos: [1, 4, 1], state: "minecraft:air"},
-        {pos: [1, 4, 2], state: "minecraft:air"},
-        {pos: [1, 4, 3], state: "minecraft:air"},
-        {pos: [1, 4, 4], state: "minecraft:air"},
-        {pos: [2, 4, 0], state: "minecraft:air"},
-        {pos: [2, 4, 1], state: "minecraft:air"},
-        {pos: [2, 4, 2], state: "minecraft:air"},
-        {pos: [2, 4, 3], state: "minecraft:air"},
-        {pos: [2, 4, 4], state: "minecraft:air"},
-        {pos: [3, 4, 0], state: "minecraft:air"},
-        {pos: [3, 4, 1], state: "minecraft:air"},
-        {pos: [3, 4, 2], state: "minecraft:air"},
-        {pos: [3, 4, 3], state: "minecraft:air"},
-        {pos: [3, 4, 4], state: "minecraft:air"},
-        {pos: [4, 4, 0], state: "minecraft:air"},
-        {pos: [4, 4, 1], state: "minecraft:air"},
-        {pos: [4, 4, 2], state: "minecraft:air"},
-        {pos: [4, 4, 3], state: "minecraft:air"},
-        {pos: [4, 4, 4], state: "minecraft:air"}
+        {pos: [3, 1, 2], state: "computercraft:monitor_advanced{facing:north,orientation:north,state:r}", nbt: {ForgeCaps: {}, Height: 1, Width: 3, XIndex: 0, YIndex: 0, id: "computercraft:monitor_advanced"}}
     ],
     entities: [],
     palette: [
         "minecraft:polished_andesite",
-        "minecraft:air",
         "computercraft:monitor_advanced{facing:north,orientation:north,state:l}",
         "computercraft:monitor_advanced{facing:north,orientation:north,state:lr}",
         "computercraft:monitor_advanced{facing:north,orientation:north,state:r}"

projects/common/src/testMod/resources/data/cctest/structures/monitor_test.creates_terminal.snbt

@@ -27,111 +27,13 @@
         {pos: [4, 0, 2], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 3], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 4], state: "minecraft:polished_andesite"},
-        {pos: [0, 1, 0], state: "minecraft:air"},
-        {pos: [0, 1, 1], state: "minecraft:air"},
-        {pos: [0, 1, 2], state: "minecraft:air"},
-        {pos: [0, 1, 3], state: "minecraft:air"},
-        {pos: [0, 1, 4], state: "minecraft:air"},
-        {pos: [1, 1, 0], state: "minecraft:air"},
-        {pos: [1, 1, 1], state: "minecraft:air"},
         {pos: [1, 1, 2], state: "computercraft:monitor_advanced{facing:north,orientation:north,state:l}", nbt: {Height: 1, Width: 3, XIndex: 2, YIndex: 0, id: "computercraft:monitor_advanced"}},
-        {pos: [1, 1, 3], state: "minecraft:air"},
-        {pos: [1, 1, 4], state: "minecraft:air"},
-        {pos: [2, 1, 0], state: "minecraft:air"},
-        {pos: [2, 1, 1], state: "minecraft:air"},
         {pos: [2, 1, 2], state: "computercraft:monitor_advanced{facing:north,orientation:north,state:lr}", nbt: {Height: 1, Width: 3, XIndex: 1, YIndex: 0, id: "computercraft:monitor_advanced"}},
-        {pos: [2, 1, 3], state: "minecraft:air"},
-        {pos: [2, 1, 4], state: "minecraft:air"},
-        {pos: [3, 1, 0], state: "minecraft:air"},
-        {pos: [3, 1, 1], state: "minecraft:air"},
-        {pos: [3, 1, 2], state: "computercraft:monitor_advanced{facing:north,orientation:north,state:r}", nbt: {Height: 1, Width: 3, XIndex: 0, YIndex: 0, id: "computercraft:monitor_advanced"}},
-        {pos: [3, 1, 3], state: "minecraft:air"},
-        {pos: [3, 1, 4], state: "minecraft:air"},
-        {pos: [4, 1, 0], state: "minecraft:air"},
-        {pos: [4, 1, 1], state: "minecraft:air"},
-        {pos: [4, 1, 2], state: "minecraft:air"},
-        {pos: [4, 1, 3], state: "minecraft:air"},
-        {pos: [4, 1, 4], state: "minecraft:air"},
-        {pos: [0, 3, 0], state: "minecraft:air"},
-        {pos: [0, 2, 1], state: "minecraft:air"},
-        {pos: [0, 2, 2], state: "minecraft:air"},
-        {pos: [0, 2, 3], state: "minecraft:air"},
-        {pos: [0, 2, 4], state: "minecraft:air"},
-        {pos: [1, 2, 0], state: "minecraft:air"},
-        {pos: [1, 2, 1], state: "minecraft:air"},
-        {pos: [1, 2, 2], state: "minecraft:air"},
-        {pos: [1, 2, 3], state: "minecraft:air"},
-        {pos: [1, 2, 4], state: "minecraft:air"},
-        {pos: [2, 2, 0], state: "minecraft:air"},
-        {pos: [2, 2, 1], state: "minecraft:air"},
-        {pos: [2, 2, 2], state: "minecraft:air"},
-        {pos: [2, 2, 3], state: "minecraft:air"},
-        {pos: [2, 2, 4], state: "minecraft:air"},
-        {pos: [3, 2, 0], state: "minecraft:air"},
-        {pos: [3, 2, 1], state: "minecraft:air"},
-        {pos: [3, 2, 2], state: "minecraft:air"},
-        {pos: [3, 2, 3], state: "minecraft:air"},
-        {pos: [3, 2, 4], state: "minecraft:air"},
-        {pos: [4, 2, 0], state: "minecraft:air"},
-        {pos: [4, 2, 1], state: "minecraft:air"},
-        {pos: [4, 2, 2], state: "minecraft:air"},
-        {pos: [4, 2, 3], state: "minecraft:air"},
-        {pos: [4, 2, 4], state: "minecraft:air"},
-        {pos: [0, 3, 0], state: "minecraft:air"},
-        {pos: [0, 3, 1], state: "minecraft:air"},
-        {pos: [0, 3, 2], state: "minecraft:air"},
-        {pos: [0, 3, 3], state: "minecraft:air"},
-        {pos: [0, 3, 4], state: "minecraft:air"},
-        {pos: [1, 3, 0], state: "minecraft:air"},
-        {pos: [1, 3, 1], state: "minecraft:air"},
-        {pos: [1, 3, 2], state: "minecraft:air"},
-        {pos: [1, 3, 3], state: "minecraft:air"},
-        {pos: [1, 3, 4], state: "minecraft:air"},
-        {pos: [2, 3, 0], state: "minecraft:air"},
-        {pos: [2, 3, 1], state: "minecraft:air"},
-        {pos: [2, 3, 2], state: "minecraft:air"},
-        {pos: [2, 3, 3], state: "minecraft:air"},
-        {pos: [2, 3, 4], state: "minecraft:air"},
-        {pos: [3, 3, 0], state: "minecraft:air"},
-        {pos: [3, 3, 1], state: "minecraft:air"},
-        {pos: [3, 3, 2], state: "minecraft:air"},
-        {pos: [3, 3, 3], state: "minecraft:air"},
-        {pos: [3, 3, 4], state: "minecraft:air"},
-        {pos: [4, 3, 0], state: "minecraft:air"},
-        {pos: [4, 3, 1], state: "minecraft:air"},
-        {pos: [4, 3, 2], state: "minecraft:air"},
-        {pos: [4, 3, 3], state: "minecraft:air"},
-        {pos: [4, 3, 4], state: "minecraft:air"},
-        {pos: [0, 4, 0], state: "minecraft:air"},
-        {pos: [0, 4, 1], state: "minecraft:air"},
-        {pos: [0, 4, 2], state: "minecraft:air"},
-        {pos: [0, 4, 3], state: "minecraft:air"},
-        {pos: [0, 4, 4], state: "minecraft:air"},
-        {pos: [1, 4, 0], state: "minecraft:air"},
-        {pos: [1, 4, 1], state: "minecraft:air"},
-        {pos: [1, 4, 2], state: "minecraft:air"},
-        {pos: [1, 4, 3], state: "minecraft:air"},
-        {pos: [1, 4, 4], state: "minecraft:air"},
-        {pos: [2, 4, 0], state: "minecraft:air"},
-        {pos: [2, 4, 1], state: "minecraft:air"},
-        {pos: [2, 4, 2], state: "minecraft:air"},
-        {pos: [2, 4, 3], state: "minecraft:air"},
-        {pos: [2, 4, 4], state: "minecraft:air"},
-        {pos: [3, 4, 0], state: "minecraft:air"},
-        {pos: [3, 4, 1], state: "minecraft:air"},
-        {pos: [3, 4, 2], state: "minecraft:air"},
-        {pos: [3, 4, 3], state: "minecraft:air"},
-        {pos: [3, 4, 4], state: "minecraft:air"},
-        {pos: [4, 4, 0], state: "minecraft:air"},
-        {pos: [4, 4, 1], state: "minecraft:air"},
-        {pos: [4, 4, 2], state: "minecraft:air"},
-        {pos: [4, 4, 3], state: "minecraft:air"},
-        {pos: [4, 4, 4], state: "minecraft:air"}
+        {pos: [3, 1, 2], state: "computercraft:monitor_advanced{facing:north,orientation:north,state:r}", nbt: {Height: 1, Width: 3, XIndex: 0, YIndex: 0, id: "computercraft:monitor_advanced"}}
     ],
     entities: [],
     palette: [
         "minecraft:polished_andesite",
-        "minecraft:air",
         "computercraft:monitor_advanced{facing:north,orientation:north,state:l}",
         "computercraft:monitor_advanced{facing:north,orientation:north,state:lr}",
         "computercraft:monitor_advanced{facing:north,orientation:north,state:r}"

projects/common/src/testMod/resources/data/cctest/structures/monitor_test.ensures_valid_on_place.snbt

@@ -26,111 +26,10 @@
         {pos: [4, 0, 1], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 2], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 3], state: "minecraft:polished_andesite"},
-        {pos: [4, 0, 4], state: "minecraft:polished_andesite"},
-        {pos: [0, 1, 0], state: "minecraft:air"},
-        {pos: [0, 1, 1], state: "minecraft:air"},
-        {pos: [0, 1, 2], state: "minecraft:air"},
-        {pos: [0, 1, 3], state: "minecraft:air"},
-        {pos: [0, 1, 4], state: "minecraft:air"},
-        {pos: [1, 1, 0], state: "minecraft:air"},
-        {pos: [1, 1, 1], state: "minecraft:air"},
-        {pos: [1, 1, 2], state: "minecraft:air"},
-        {pos: [1, 1, 3], state: "minecraft:air"},
-        {pos: [1, 1, 4], state: "minecraft:air"},
-        {pos: [2, 1, 0], state: "minecraft:air"},
-        {pos: [2, 1, 1], state: "minecraft:air"},
-        {pos: [2, 1, 2], state: "minecraft:air"},
-        {pos: [2, 1, 3], state: "minecraft:air"},
-        {pos: [2, 1, 4], state: "minecraft:air"},
-        {pos: [3, 1, 0], state: "minecraft:air"},
-        {pos: [3, 1, 1], state: "minecraft:air"},
-        {pos: [3, 1, 2], state: "minecraft:air"},
-        {pos: [3, 1, 3], state: "minecraft:air"},
-        {pos: [3, 1, 4], state: "minecraft:air"},
-        {pos: [4, 1, 0], state: "minecraft:air"},
-        {pos: [4, 1, 1], state: "minecraft:air"},
-        {pos: [4, 1, 2], state: "minecraft:air"},
-        {pos: [4, 1, 3], state: "minecraft:air"},
-        {pos: [4, 1, 4], state: "minecraft:air"},
-        {pos: [0, 2, 0], state: "minecraft:air"},
-        {pos: [0, 2, 1], state: "minecraft:air"},
-        {pos: [0, 2, 2], state: "minecraft:air"},
-        {pos: [0, 2, 3], state: "minecraft:air"},
-        {pos: [0, 2, 4], state: "minecraft:air"},
-        {pos: [1, 2, 0], state: "minecraft:air"},
-        {pos: [1, 2, 1], state: "minecraft:air"},
-        {pos: [1, 2, 2], state: "minecraft:air"},
-        {pos: [1, 2, 3], state: "minecraft:air"},
-        {pos: [1, 2, 4], state: "minecraft:air"},
-        {pos: [2, 2, 0], state: "minecraft:air"},
-        {pos: [2, 2, 1], state: "minecraft:air"},
-        {pos: [2, 2, 2], state: "minecraft:air"},
-        {pos: [2, 2, 3], state: "minecraft:air"},
-        {pos: [2, 2, 4], state: "minecraft:air"},
-        {pos: [3, 2, 0], state: "minecraft:air"},
-        {pos: [3, 2, 1], state: "minecraft:air"},
-        {pos: [3, 2, 2], state: "minecraft:air"},
-        {pos: [3, 2, 3], state: "minecraft:air"},
-        {pos: [3, 2, 4], state: "minecraft:air"},
-        {pos: [4, 2, 0], state: "minecraft:air"},
-        {pos: [4, 2, 1], state: "minecraft:air"},
-        {pos: [4, 2, 2], state: "minecraft:air"},
-        {pos: [4, 2, 3], state: "minecraft:air"},
-        {pos: [4, 2, 4], state: "minecraft:air"},
-        {pos: [0, 3, 0], state: "minecraft:air"},
-        {pos: [0, 3, 1], state: "minecraft:air"},
-        {pos: [0, 3, 2], state: "minecraft:air"},
-        {pos: [0, 3, 3], state: "minecraft:air"},
-        {pos: [0, 3, 4], state: "minecraft:air"},
-        {pos: [1, 3, 0], state: "minecraft:air"},
-        {pos: [1, 3, 1], state: "minecraft:air"},
-        {pos: [1, 3, 2], state: "minecraft:air"},
-        {pos: [1, 3, 3], state: "minecraft:air"},
-        {pos: [1, 3, 4], state: "minecraft:air"},
-        {pos: [2, 3, 0], state: "minecraft:air"},
-        {pos: [2, 3, 1], state: "minecraft:air"},
-        {pos: [2, 3, 2], state: "minecraft:air"},
-        {pos: [2, 3, 3], state: "minecraft:air"},
-        {pos: [2, 3, 4], state: "minecraft:air"},
-        {pos: [3, 3, 0], state: "minecraft:air"},
-        {pos: [3, 3, 1], state: "minecraft:air"},
-        {pos: [3, 3, 2], state: "minecraft:air"},
-        {pos: [3, 3, 3], state: "minecraft:air"},
-        {pos: [3, 3, 4], state: "minecraft:air"},
-        {pos: [4, 3, 0], state: "minecraft:air"},
-        {pos: [4, 3, 1], state: "minecraft:air"},
-        {pos: [4, 3, 2], state: "minecraft:air"},
-        {pos: [4, 3, 3], state: "minecraft:air"},
-        {pos: [4, 3, 4], state: "minecraft:air"},
-        {pos: [0, 4, 0], state: "minecraft:air"},
-        {pos: [0, 4, 1], state: "minecraft:air"},
-        {pos: [0, 4, 2], state: "minecraft:air"},
-        {pos: [0, 4, 3], state: "minecraft:air"},
-        {pos: [0, 4, 4], state: "minecraft:air"},
-        {pos: [1, 4, 0], state: "minecraft:air"},
-        {pos: [1, 4, 1], state: "minecraft:air"},
-        {pos: [1, 4, 2], state: "minecraft:air"},
-        {pos: [1, 4, 3], state: "minecraft:air"},
-        {pos: [1, 4, 4], state: "minecraft:air"},
-        {pos: [2, 4, 0], state: "minecraft:air"},
-        {pos: [2, 4, 1], state: "minecraft:air"},
-        {pos: [2, 4, 2], state: "minecraft:air"},
-        {pos: [2, 4, 3], state: "minecraft:air"},
-        {pos: [2, 4, 4], state: "minecraft:air"},
-        {pos: [3, 4, 0], state: "minecraft:air"},
-        {pos: [3, 4, 1], state: "minecraft:air"},
-        {pos: [3, 4, 2], state: "minecraft:air"},
-        {pos: [3, 4, 3], state: "minecraft:air"},
-        {pos: [3, 4, 4], state: "minecraft:air"},
-        {pos: [4, 4, 0], state: "minecraft:air"},
-        {pos: [4, 4, 1], state: "minecraft:air"},
-        {pos: [4, 4, 2], state: "minecraft:air"},
-        {pos: [4, 4, 3], state: "minecraft:air"},
-        {pos: [4, 4, 4], state: "minecraft:air"}
+        {pos: [4, 0, 4], state: "minecraft:polished_andesite"}
     ],
     entities: [],
     palette: [
-        "minecraft:polished_andesite",
-        "minecraft:air"
+        "minecraft:polished_andesite"
     ]
 }

projects/common/src/testMod/resources/data/cctest/structures/monitor_test.looks_acceptable.snbt

@@ -1,146 +0,0 @@
-{
-    DataVersion: 2730,
-    size: [5, 5, 5],
-    data: [
-        {pos: [0, 0, 0], state: "minecraft:polished_andesite"},
-        {pos: [0, 0, 1], state: "minecraft:polished_andesite"},
-        {pos: [0, 0, 2], state: "minecraft:polished_andesite"},
-        {pos: [0, 0, 3], state: "minecraft:polished_andesite"},
-        {pos: [0, 0, 4], state: "minecraft:polished_andesite"},
-        {pos: [1, 0, 0], state: "minecraft:polished_andesite"},
-        {pos: [1, 0, 1], state: "minecraft:polished_andesite"},
-        {pos: [1, 0, 2], state: "minecraft:polished_andesite"},
-        {pos: [1, 0, 3], state: "minecraft:polished_andesite"},
-        {pos: [1, 0, 4], state: "minecraft:polished_andesite"},
-        {pos: [2, 0, 0], state: "minecraft:polished_andesite"},
-        {pos: [2, 0, 1], state: "minecraft:polished_andesite"},
-        {pos: [2, 0, 2], state: "minecraft:polished_andesite"},
-        {pos: [2, 0, 3], state: "minecraft:polished_andesite"},
-        {pos: [2, 0, 4], state: "minecraft:polished_andesite"},
-        {pos: [3, 0, 0], state: "minecraft:polished_andesite"},
-        {pos: [3, 0, 1], state: "minecraft:polished_andesite"},
-        {pos: [3, 0, 2], state: "minecraft:polished_andesite"},
-        {pos: [3, 0, 3], state: "minecraft:polished_andesite"},
-        {pos: [3, 0, 4], state: "minecraft:polished_andesite"},
-        {pos: [4, 0, 0], state: "minecraft:polished_andesite"},
-        {pos: [4, 0, 1], state: "minecraft:polished_andesite"},
-        {pos: [4, 0, 2], state: "minecraft:polished_andesite"},
-        {pos: [4, 0, 3], state: "minecraft:polished_andesite"},
-        {pos: [4, 0, 4], state: "minecraft:polished_andesite"},
-        {pos: [0, 1, 0], state: "minecraft:white_concrete"},
-        {pos: [0, 1, 1], state: "minecraft:shroomlight"},
-        {pos: [0, 1, 2], state: "minecraft:white_concrete"},
-        {pos: [0, 1, 3], state: "minecraft:white_concrete"},
-        {pos: [0, 1, 4], state: "minecraft:white_concrete"},
-        {pos: [1, 1, 0], state: "minecraft:white_concrete"},
-        {pos: [1, 1, 1], state: "minecraft:air"},
-        {pos: [1, 1, 2], state: "minecraft:air"},
-        {pos: [1, 1, 3], state: "computercraft:monitor_advanced{facing:north,orientation:north,state:lu}", nbt: {Height: 2, Width: 3, XIndex: 2, YIndex: 0, id: "computercraft:monitor_advanced"}},
-        {pos: [1, 1, 4], state: "minecraft:white_concrete"},
-        {pos: [2, 1, 0], state: "minecraft:white_concrete"},
-        {pos: [2, 1, 1], state: "minecraft:air"},
-        {pos: [2, 1, 2], state: "minecraft:air"},
-        {pos: [2, 1, 3], state: "computercraft:monitor_advanced{facing:north,orientation:north,state:lru}", nbt: {Height: 2, Width: 3, XIndex: 1, YIndex: 0, id: "computercraft:monitor_advanced"}},
-        {pos: [2, 1, 4], state: "minecraft:white_concrete"},
-        {pos: [3, 1, 0], state: "minecraft:white_concrete"},
-        {pos: [3, 1, 1], state: "minecraft:air"},
-        {pos: [3, 1, 2], state: "minecraft:air"},
-        {pos: [3, 1, 3], state: "computercraft:monitor_advanced{facing:north,orientation:north,state:ru}", nbt: {Height: 2, Width: 3, XIndex: 0, YIndex: 0, id: "computercraft:monitor_advanced"}},
-        {pos: [3, 1, 4], state: "minecraft:white_concrete"},
-        {pos: [4, 1, 0], state: "minecraft:white_concrete"},
-        {pos: [4, 1, 1], state: "minecraft:shroomlight"},
-        {pos: [4, 1, 2], state: "minecraft:white_concrete"},
-        {pos: [4, 1, 3], state: "minecraft:white_concrete"},
-        {pos: [4, 1, 4], state: "minecraft:white_concrete"},
-        {pos: [0, 2, 0], state: "minecraft:white_concrete"},
-        {pos: [0, 2, 1], state: "minecraft:white_concrete"},
-        {pos: [0, 2, 2], state: "minecraft:white_concrete"},
-        {pos: [0, 2, 3], state: "minecraft:white_concrete"},
-        {pos: [0, 2, 4], state: "minecraft:white_concrete"},
-        {pos: [1, 2, 0], state: "minecraft:white_concrete"},
-        {pos: [1, 2, 1], state: "minecraft:air"},
-        {pos: [1, 2, 2], state: "minecraft:air"},
-        {pos: [1, 2, 3], state: "computercraft:monitor_advanced{facing:north,orientation:north,state:ld}", nbt: {Height: 2, Width: 3, XIndex: 2, YIndex: 1, id: "computercraft:monitor_advanced"}},
-        {pos: [1, 2, 4], state: "minecraft:white_concrete"},
-        {pos: [2, 2, 0], state: "minecraft:white_concrete"},
-        {pos: [2, 2, 1], state: "minecraft:air"},
-        {pos: [2, 2, 2], state: "minecraft:air"},
-        {pos: [2, 2, 3], state: "computercraft:monitor_advanced{facing:north,orientation:north,state:lrd}", nbt: {Height: 2, Width: 3, XIndex: 1, YIndex: 1, id: "computercraft:monitor_advanced"}},
-        {pos: [2, 2, 4], state: "minecraft:white_concrete"},
-        {pos: [3, 2, 0], state: "minecraft:white_concrete"},
-        {pos: [3, 2, 1], state: "minecraft:air"},
-        {pos: [3, 2, 2], state: "minecraft:air"},
-        {pos: [3, 2, 3], state: "computercraft:monitor_advanced{facing:north,orientation:north,state:rd}", nbt: {Height: 2, Width: 3, XIndex: 0, YIndex: 1, id: "computercraft:monitor_advanced"}},
-        {pos: [3, 2, 4], state: "minecraft:white_concrete"},
-        {pos: [4, 2, 0], state: "minecraft:white_concrete"},
-        {pos: [4, 2, 1], state: "minecraft:white_concrete"},
-        {pos: [4, 2, 2], state: "minecraft:white_concrete"},
-        {pos: [4, 2, 3], state: "minecraft:white_concrete"},
-        {pos: [4, 2, 4], state: "minecraft:white_concrete"},
-        {pos: [0, 3, 0], state: "minecraft:white_concrete"},
-        {pos: [0, 3, 1], state: "minecraft:white_concrete"},
-        {pos: [0, 3, 2], state: "minecraft:white_concrete"},
-        {pos: [0, 3, 3], state: "minecraft:white_concrete"},
-        {pos: [0, 3, 4], state: "minecraft:white_concrete"},
-        {pos: [1, 3, 0], state: "minecraft:white_concrete"},
-        {pos: [1, 3, 1], state: "minecraft:air"},
-        {pos: [1, 3, 2], state: "minecraft:air"},
-        {pos: [1, 3, 3], state: "minecraft:air"},
-        {pos: [1, 3, 4], state: "minecraft:white_concrete"},
-        {pos: [2, 3, 0], state: "minecraft:white_concrete"},
-        {pos: [2, 3, 1], state: "minecraft:air"},
-        {pos: [2, 3, 2], state: "minecraft:air"},
-        {pos: [2, 3, 3], state: "minecraft:air"},
-        {pos: [2, 3, 4], state: "minecraft:white_concrete"},
-        {pos: [3, 3, 0], state: "minecraft:white_concrete"},
-        {pos: [3, 3, 1], state: "minecraft:air"},
-        {pos: [3, 3, 2], state: "minecraft:air"},
-        {pos: [3, 3, 3], state: "minecraft:air"},
-        {pos: [3, 3, 4], state: "minecraft:white_concrete"},
-        {pos: [4, 3, 0], state: "minecraft:white_concrete"},
-        {pos: [4, 3, 1], state: "minecraft:white_concrete"},
-        {pos: [4, 3, 2], state: "minecraft:white_concrete"},
-        {pos: [4, 3, 3], state: "minecraft:white_concrete"},
-        {pos: [4, 3, 4], state: "minecraft:white_concrete"},
-        {pos: [0, 4, 0], state: "minecraft:white_concrete"},
-        {pos: [0, 4, 1], state: "minecraft:white_concrete"},
-        {pos: [0, 4, 2], state: "minecraft:white_concrete"},
-        {pos: [0, 4, 3], state: "minecraft:white_concrete"},
-        {pos: [0, 4, 4], state: "minecraft:white_concrete"},
-        {pos: [1, 4, 0], state: "minecraft:white_concrete"},
-        {pos: [1, 4, 1], state: "minecraft:white_concrete"},
-        {pos: [1, 4, 2], state: "minecraft:white_concrete"},
-        {pos: [1, 4, 3], state: "minecraft:shroomlight"},
-        {pos: [1, 4, 4], state: "minecraft:white_concrete"},
-        {pos: [2, 4, 0], state: "minecraft:white_concrete"},
-        {pos: [2, 4, 1], state: "minecraft:white_concrete"},
-        {pos: [2, 4, 2], state: "minecraft:white_concrete"},
-        {pos: [2, 4, 3], state: "minecraft:white_concrete"},
-        {pos: [2, 4, 4], state: "minecraft:white_concrete"},
-        {pos: [3, 4, 0], state: "minecraft:white_concrete"},
-        {pos: [3, 4, 1], state: "minecraft:white_concrete"},
-        {pos: [3, 4, 2], state: "minecraft:white_concrete"},
-        {pos: [3, 4, 3], state: "minecraft:shroomlight"},
-        {pos: [3, 4, 4], state: "minecraft:white_concrete"},
-        {pos: [4, 4, 0], state: "minecraft:white_concrete"},
-        {pos: [4, 4, 1], state: "minecraft:white_concrete"},
-        {pos: [4, 4, 2], state: "minecraft:white_concrete"},
-        {pos: [4, 4, 3], state: "minecraft:white_concrete"},
-        {pos: [4, 4, 4], state: "minecraft:white_concrete"}
-    ],
-    entities: [
-        {blockPos: [2, 1, 1], pos: [2.392713937302208d, 1.0d, 1.300000011920929d], nbt: {AbsorptionAmount: 0.0f, Air: 300s, ArmorItems: [{}, {}, {}, {}], Attributes: [{Base: 0.699999988079071d, Name: "minecraft:generic.movement_speed"}], Brain: {memories: {}}, CanUpdate: 1b, CustomName: '{"text":"monitor_test.looks_acceptable"}', DeathTime: 0s, DisabledSlots: 0, FallDistance: 0.0f, FallFlying: 0b, Fire: -1s, HandItems: [{}, {}], Health: 20.0f, HurtByTimestamp: 0, HurtTime: 0s, Invisible: 1b, Invulnerable: 0b, Marker: 1b, Motion: [0.0d, 0.0d, 0.0d], NoBasePlate: 0b, OnGround: 0b, PortalCooldown: 0, Pos: [21.392713937302208d, 6.0d, 35.30000001192093d], Pose: {}, Rotation: [0.15043798f, 15.347454f], ShowArms: 0b, Small: 0b, UUID: [I; 474729512, 2108312608, -1494837479, 630038770], id: "minecraft:armor_stand"}}
-    ],
-    palette: [
-        "minecraft:polished_andesite",
-        "minecraft:white_concrete",
-        "minecraft:shroomlight",
-        "minecraft:air",
-        "computercraft:monitor_advanced{facing:north,orientation:north,state:lu}",
-        "computercraft:monitor_advanced{facing:north,orientation:north,state:lru}",
-        "computercraft:monitor_advanced{facing:north,orientation:north,state:ru}",
-        "computercraft:monitor_advanced{facing:north,orientation:north,state:ld}",
-        "computercraft:monitor_advanced{facing:north,orientation:north,state:lrd}",
-        "computercraft:monitor_advanced{facing:north,orientation:north,state:rd}"
-    ]
-}

projects/common/src/testMod/resources/data/cctest/structures/monitor_test.looks_acceptable_dark.snbt

@@ -1,145 +0,0 @@
-{
-    DataVersion: 2730,
-    size: [5, 5, 5],
-    data: [
-        {pos: [0, 0, 0], state: "minecraft:polished_andesite"},
-        {pos: [0, 0, 1], state: "minecraft:polished_andesite"},
-        {pos: [0, 0, 2], state: "minecraft:polished_andesite"},
-        {pos: [0, 0, 3], state: "minecraft:polished_andesite"},
-        {pos: [0, 0, 4], state: "minecraft:polished_andesite"},
-        {pos: [1, 0, 0], state: "minecraft:polished_andesite"},
-        {pos: [1, 0, 1], state: "minecraft:polished_andesite"},
-        {pos: [1, 0, 2], state: "minecraft:polished_andesite"},
-        {pos: [1, 0, 3], state: "minecraft:polished_andesite"},
-        {pos: [1, 0, 4], state: "minecraft:polished_andesite"},
-        {pos: [2, 0, 0], state: "minecraft:polished_andesite"},
-        {pos: [2, 0, 1], state: "minecraft:polished_andesite"},
-        {pos: [2, 0, 2], state: "minecraft:polished_andesite"},
-        {pos: [2, 0, 3], state: "minecraft:polished_andesite"},
-        {pos: [2, 0, 4], state: "minecraft:polished_andesite"},
-        {pos: [3, 0, 0], state: "minecraft:polished_andesite"},
-        {pos: [3, 0, 1], state: "minecraft:polished_andesite"},
-        {pos: [3, 0, 2], state: "minecraft:polished_andesite"},
-        {pos: [3, 0, 3], state: "minecraft:polished_andesite"},
-        {pos: [3, 0, 4], state: "minecraft:polished_andesite"},
-        {pos: [4, 0, 0], state: "minecraft:polished_andesite"},
-        {pos: [4, 0, 1], state: "minecraft:polished_andesite"},
-        {pos: [4, 0, 2], state: "minecraft:polished_andesite"},
-        {pos: [4, 0, 3], state: "minecraft:polished_andesite"},
-        {pos: [4, 0, 4], state: "minecraft:polished_andesite"},
-        {pos: [0, 1, 0], state: "minecraft:white_concrete"},
-        {pos: [0, 1, 1], state: "minecraft:white_concrete"},
-        {pos: [0, 1, 2], state: "minecraft:white_concrete"},
-        {pos: [0, 1, 3], state: "minecraft:white_concrete"},
-        {pos: [0, 1, 4], state: "minecraft:white_concrete"},
-        {pos: [1, 1, 0], state: "minecraft:white_concrete"},
-        {pos: [1, 1, 1], state: "minecraft:air"},
-        {pos: [1, 1, 2], state: "minecraft:air"},
-        {pos: [1, 1, 3], state: "computercraft:monitor_advanced{facing:north,orientation:north,state:lu}", nbt: {Height: 2, Width: 3, XIndex: 2, YIndex: 0, id: "computercraft:monitor_advanced"}},
-        {pos: [1, 1, 4], state: "minecraft:white_concrete"},
-        {pos: [2, 1, 0], state: "minecraft:white_concrete"},
-        {pos: [2, 1, 1], state: "minecraft:air"},
-        {pos: [2, 1, 2], state: "minecraft:air"},
-        {pos: [2, 1, 3], state: "computercraft:monitor_advanced{facing:north,orientation:north,state:lru}", nbt: {Height: 2, Width: 3, XIndex: 1, YIndex: 0, id: "computercraft:monitor_advanced"}},
-        {pos: [2, 1, 4], state: "minecraft:white_concrete"},
-        {pos: [3, 1, 0], state: "minecraft:white_concrete"},
-        {pos: [3, 1, 1], state: "minecraft:air"},
-        {pos: [3, 1, 2], state: "minecraft:air"},
-        {pos: [3, 1, 3], state: "computercraft:monitor_advanced{facing:north,orientation:north,state:ru}", nbt: {Height: 2, Width: 3, XIndex: 0, YIndex: 0, id: "computercraft:monitor_advanced"}},
-        {pos: [3, 1, 4], state: "minecraft:white_concrete"},
-        {pos: [4, 1, 0], state: "minecraft:white_concrete"},
-        {pos: [4, 1, 1], state: "minecraft:white_concrete"},
-        {pos: [4, 1, 2], state: "minecraft:white_concrete"},
-        {pos: [4, 1, 3], state: "minecraft:white_concrete"},
-        {pos: [4, 1, 4], state: "minecraft:white_concrete"},
-        {pos: [0, 2, 0], state: "minecraft:white_concrete"},
-        {pos: [0, 2, 1], state: "minecraft:white_concrete"},
-        {pos: [0, 2, 2], state: "minecraft:white_concrete"},
-        {pos: [0, 2, 3], state: "minecraft:white_concrete"},
-        {pos: [0, 2, 4], state: "minecraft:white_concrete"},
-        {pos: [1, 2, 0], state: "minecraft:white_concrete"},
-        {pos: [1, 2, 1], state: "minecraft:air"},
-        {pos: [1, 2, 2], state: "minecraft:air"},
-        {pos: [1, 2, 3], state: "computercraft:monitor_advanced{facing:north,orientation:north,state:ld}", nbt: {Height: 2, Width: 3, XIndex: 2, YIndex: 1, id: "computercraft:monitor_advanced"}},
-        {pos: [1, 2, 4], state: "minecraft:white_concrete"},
-        {pos: [2, 2, 0], state: "minecraft:white_concrete"},
-        {pos: [2, 2, 1], state: "minecraft:air"},
-        {pos: [2, 2, 2], state: "minecraft:air"},
-        {pos: [2, 2, 3], state: "computercraft:monitor_advanced{facing:north,orientation:north,state:lrd}", nbt: {Height: 2, Width: 3, XIndex: 1, YIndex: 1, id: "computercraft:monitor_advanced"}},
-        {pos: [2, 2, 4], state: "minecraft:white_concrete"},
-        {pos: [3, 2, 0], state: "minecraft:white_concrete"},
-        {pos: [3, 2, 1], state: "minecraft:air"},
-        {pos: [3, 2, 2], state: "minecraft:air"},
-        {pos: [3, 2, 3], state: "computercraft:monitor_advanced{facing:north,orientation:north,state:rd}", nbt: {Height: 2, Width: 3, XIndex: 0, YIndex: 1, id: "computercraft:monitor_advanced"}},
-        {pos: [3, 2, 4], state: "minecraft:white_concrete"},
-        {pos: [4, 2, 0], state: "minecraft:white_concrete"},
-        {pos: [4, 2, 1], state: "minecraft:white_concrete"},
-        {pos: [4, 2, 2], state: "minecraft:white_concrete"},
-        {pos: [4, 2, 3], state: "minecraft:white_concrete"},
-        {pos: [4, 2, 4], state: "minecraft:white_concrete"},
-        {pos: [0, 3, 0], state: "minecraft:white_concrete"},
-        {pos: [0, 3, 1], state: "minecraft:white_concrete"},
-        {pos: [0, 3, 2], state: "minecraft:white_concrete"},
-        {pos: [0, 3, 3], state: "minecraft:white_concrete"},
-        {pos: [0, 3, 4], state: "minecraft:white_concrete"},
-        {pos: [1, 3, 0], state: "minecraft:white_concrete"},
-        {pos: [1, 3, 1], state: "minecraft:air"},
-        {pos: [1, 3, 2], state: "minecraft:air"},
-        {pos: [1, 3, 3], state: "minecraft:air"},
-        {pos: [1, 3, 4], state: "minecraft:white_concrete"},
-        {pos: [2, 3, 0], state: "minecraft:white_concrete"},
-        {pos: [2, 3, 1], state: "minecraft:air"},
-        {pos: [2, 3, 2], state: "minecraft:air"},
-        {pos: [2, 3, 3], state: "minecraft:air"},
-        {pos: [2, 3, 4], state: "minecraft:white_concrete"},
-        {pos: [3, 3, 0], state: "minecraft:white_concrete"},
-        {pos: [3, 3, 1], state: "minecraft:air"},
-        {pos: [3, 3, 2], state: "minecraft:air"},
-        {pos: [3, 3, 3], state: "minecraft:air"},
-        {pos: [3, 3, 4], state: "minecraft:white_concrete"},
-        {pos: [4, 3, 0], state: "minecraft:white_concrete"},
-        {pos: [4, 3, 1], state: "minecraft:white_concrete"},
-        {pos: [4, 3, 2], state: "minecraft:white_concrete"},
-        {pos: [4, 3, 3], state: "minecraft:white_concrete"},
-        {pos: [4, 3, 4], state: "minecraft:white_concrete"},
-        {pos: [0, 4, 0], state: "minecraft:white_concrete"},
-        {pos: [0, 4, 1], state: "minecraft:white_concrete"},
-        {pos: [0, 4, 2], state: "minecraft:white_concrete"},
-        {pos: [0, 4, 3], state: "minecraft:white_concrete"},
-        {pos: [0, 4, 4], state: "minecraft:white_concrete"},
-        {pos: [1, 4, 0], state: "minecraft:white_concrete"},
-        {pos: [1, 4, 1], state: "minecraft:white_concrete"},
-        {pos: [1, 4, 2], state: "minecraft:white_concrete"},
-        {pos: [1, 4, 3], state: "minecraft:white_concrete"},
-        {pos: [1, 4, 4], state: "minecraft:white_concrete"},
-        {pos: [2, 4, 0], state: "minecraft:white_concrete"},
-        {pos: [2, 4, 1], state: "minecraft:white_concrete"},
-        {pos: [2, 4, 2], state: "minecraft:white_concrete"},
-        {pos: [2, 4, 3], state: "minecraft:white_concrete"},
-        {pos: [2, 4, 4], state: "minecraft:white_concrete"},
-        {pos: [3, 4, 0], state: "minecraft:white_concrete"},
-        {pos: [3, 4, 1], state: "minecraft:white_concrete"},
-        {pos: [3, 4, 2], state: "minecraft:white_concrete"},
-        {pos: [3, 4, 3], state: "minecraft:white_concrete"},
-        {pos: [3, 4, 4], state: "minecraft:white_concrete"},
-        {pos: [4, 4, 0], state: "minecraft:white_concrete"},
-        {pos: [4, 4, 1], state: "minecraft:white_concrete"},
-        {pos: [4, 4, 2], state: "minecraft:white_concrete"},
-        {pos: [4, 4, 3], state: "minecraft:white_concrete"},
-        {pos: [4, 4, 4], state: "minecraft:white_concrete"}
-    ],
-    entities: [
-        {blockPos: [2, 1, 1], pos: [2.3927139373022044d, 1.0d, 1.300000011920929d], nbt: {AbsorptionAmount: 0.0f, Air: 300s, ArmorItems: [{}, {}, {}, {}], Attributes: [{Base: 0.699999988079071d, Name: "minecraft:generic.movement_speed"}], Brain: {memories: {}}, CanUpdate: 1b, CustomName: '{"text":"monitor_test.looks_acceptable_dark"}', DeathTime: 0s, DisabledSlots: 0, FallDistance: 0.0f, FallFlying: 0b, Fire: -1s, HandItems: [{}, {}], Health: 20.0f, HurtByTimestamp: 0, HurtTime: 0s, Invisible: 1b, Invulnerable: 0b, Marker: 1b, Motion: [0.0d, 0.0d, 0.0d], NoBasePlate: 0b, OnGround: 0b, PortalCooldown: 0, Pos: [64.3927139373022d, 6.0d, 59.30000001192093d], Pose: {}, Rotation: [0.15043798f, 15.347454f], ShowArms: 0b, Small: 0b, UUID: [I; -1516632699, -1770765897, -1362337958, -475677268], id: "minecraft:armor_stand"}}
-    ],
-    palette: [
-        "minecraft:polished_andesite",
-        "minecraft:white_concrete",
-        "minecraft:air",
-        "computercraft:monitor_advanced{facing:north,orientation:north,state:lu}",
-        "computercraft:monitor_advanced{facing:north,orientation:north,state:lru}",
-        "computercraft:monitor_advanced{facing:north,orientation:north,state:ru}",
-        "computercraft:monitor_advanced{facing:north,orientation:north,state:ld}",
-        "computercraft:monitor_advanced{facing:north,orientation:north,state:lrd}",
-        "computercraft:monitor_advanced{facing:north,orientation:north,state:rd}"
-    ]
-}

projects/common/src/testMod/resources/data/cctest/structures/monitor_test.render_monitor.snbt

@@ -27,113 +27,18 @@
         {pos: [4, 0, 2], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 3], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 4], state: "minecraft:polished_andesite"},
-        {pos: [0, 1, 0], state: "minecraft:air"},
-        {pos: [0, 1, 1], state: "minecraft:air"},
-        {pos: [0, 1, 2], state: "minecraft:air"},
-        {pos: [0, 1, 3], state: "minecraft:air"},
-        {pos: [0, 1, 4], state: "minecraft:air"},
-        {pos: [1, 1, 0], state: "minecraft:air"},
-        {pos: [1, 1, 1], state: "minecraft:air"},
-        {pos: [1, 1, 2], state: "minecraft:air"},
         {pos: [1, 1, 3], state: "computercraft:monitor_advanced{facing:north,orientation:north,state:lu}", nbt: {Height: 2, Width: 3, XIndex: 2, YIndex: 0, id: "computercraft:monitor_advanced"}},
-        {pos: [1, 1, 4], state: "minecraft:air"},
-        {pos: [2, 1, 0], state: "minecraft:air"},
-        {pos: [2, 1, 1], state: "minecraft:air"},
-        {pos: [2, 1, 2], state: "minecraft:air"},
         {pos: [2, 1, 3], state: "computercraft:monitor_advanced{facing:north,orientation:north,state:lru}", nbt: {Height: 2, Width: 3, XIndex: 1, YIndex: 0, id: "computercraft:monitor_advanced"}},
-        {pos: [2, 1, 4], state: "minecraft:air"},
-        {pos: [3, 1, 0], state: "minecraft:air"},
-        {pos: [3, 1, 1], state: "minecraft:air"},
-        {pos: [3, 1, 2], state: "minecraft:air"},
         {pos: [3, 1, 3], state: "computercraft:monitor_advanced{facing:north,orientation:north,state:ru}", nbt: {Height: 2, Width: 3, XIndex: 0, YIndex: 0, id: "computercraft:monitor_advanced"}},
-        {pos: [3, 1, 4], state: "minecraft:air"},
-        {pos: [4, 1, 0], state: "minecraft:air"},
-        {pos: [4, 1, 1], state: "minecraft:air"},
-        {pos: [4, 1, 2], state: "minecraft:air"},
-        {pos: [4, 1, 3], state: "minecraft:air"},
-        {pos: [4, 1, 4], state: "minecraft:air"},
-        {pos: [0, 2, 0], state: "minecraft:air"},
-        {pos: [0, 2, 1], state: "minecraft:air"},
-        {pos: [0, 2, 2], state: "minecraft:air"},
-        {pos: [0, 2, 3], state: "minecraft:air"},
-        {pos: [0, 2, 4], state: "minecraft:air"},
-        {pos: [1, 2, 0], state: "minecraft:air"},
-        {pos: [1, 2, 1], state: "minecraft:air"},
-        {pos: [1, 2, 2], state: "minecraft:air"},
         {pos: [1, 2, 3], state: "computercraft:monitor_advanced{facing:north,orientation:north,state:ld}", nbt: {Height: 2, Width: 3, XIndex: 2, YIndex: 1, id: "computercraft:monitor_advanced"}},
-        {pos: [1, 2, 4], state: "minecraft:air"},
-        {pos: [2, 2, 0], state: "minecraft:air"},
-        {pos: [2, 2, 1], state: "minecraft:air"},
-        {pos: [2, 2, 2], state: "minecraft:air"},
         {pos: [2, 2, 3], state: "computercraft:monitor_advanced{facing:north,orientation:north,state:lrd}", nbt: {Height: 2, Width: 3, XIndex: 1, YIndex: 1, id: "computercraft:monitor_advanced"}},
-        {pos: [2, 2, 4], state: "minecraft:air"},
-        {pos: [3, 2, 0], state: "minecraft:air"},
-        {pos: [3, 2, 1], state: "minecraft:air"},
-        {pos: [3, 2, 2], state: "minecraft:air"},
-        {pos: [3, 2, 3], state: "computercraft:monitor_advanced{facing:north,orientation:north,state:rd}", nbt: {Height: 2, Width: 3, XIndex: 0, YIndex: 1, id: "computercraft:monitor_advanced"}},
-        {pos: [3, 2, 4], state: "minecraft:air"},
-        {pos: [4, 2, 0], state: "minecraft:air"},
-        {pos: [4, 2, 1], state: "minecraft:air"},
-        {pos: [4, 2, 2], state: "minecraft:air"},
-        {pos: [4, 2, 3], state: "minecraft:air"},
-        {pos: [4, 2, 4], state: "minecraft:air"},
-        {pos: [0, 3, 0], state: "minecraft:air"},
-        {pos: [0, 3, 1], state: "minecraft:air"},
-        {pos: [0, 3, 2], state: "minecraft:air"},
-        {pos: [0, 3, 3], state: "minecraft:air"},
-        {pos: [0, 3, 4], state: "minecraft:air"},
-        {pos: [1, 3, 0], state: "minecraft:air"},
-        {pos: [1, 3, 1], state: "minecraft:air"},
-        {pos: [1, 3, 2], state: "minecraft:air"},
-        {pos: [1, 3, 3], state: "minecraft:air"},
-        {pos: [1, 3, 4], state: "minecraft:air"},
-        {pos: [2, 3, 0], state: "minecraft:air"},
-        {pos: [2, 3, 1], state: "minecraft:air"},
-        {pos: [2, 3, 2], state: "minecraft:air"},
-        {pos: [2, 3, 3], state: "minecraft:air"},
-        {pos: [2, 3, 4], state: "minecraft:air"},
-        {pos: [3, 3, 0], state: "minecraft:air"},
-        {pos: [3, 3, 1], state: "minecraft:air"},
-        {pos: [3, 3, 2], state: "minecraft:air"},
-        {pos: [3, 3, 3], state: "minecraft:air"},
-        {pos: [3, 3, 4], state: "minecraft:air"},
-        {pos: [4, 3, 0], state: "minecraft:air"},
-        {pos: [4, 3, 1], state: "minecraft:air"},
-        {pos: [4, 3, 2], state: "minecraft:air"},
-        {pos: [4, 3, 3], state: "minecraft:air"},
-        {pos: [4, 3, 4], state: "minecraft:air"},
-        {pos: [0, 4, 0], state: "minecraft:air"},
-        {pos: [0, 4, 1], state: "minecraft:air"},
-        {pos: [0, 4, 2], state: "minecraft:air"},
-        {pos: [0, 4, 3], state: "minecraft:air"},
-        {pos: [0, 4, 4], state: "minecraft:air"},
-        {pos: [1, 4, 0], state: "minecraft:air"},
-        {pos: [1, 4, 1], state: "minecraft:air"},
-        {pos: [1, 4, 2], state: "minecraft:air"},
-        {pos: [1, 4, 3], state: "minecraft:air"},
-        {pos: [1, 4, 4], state: "minecraft:air"},
-        {pos: [2, 4, 0], state: "minecraft:air"},
-        {pos: [2, 4, 1], state: "minecraft:air"},
-        {pos: [2, 4, 2], state: "minecraft:air"},
-        {pos: [2, 4, 3], state: "minecraft:air"},
-        {pos: [2, 4, 4], state: "minecraft:air"},
-        {pos: [3, 4, 0], state: "minecraft:air"},
-        {pos: [3, 4, 1], state: "minecraft:air"},
-        {pos: [3, 4, 2], state: "minecraft:air"},
-        {pos: [3, 4, 3], state: "minecraft:air"},
-        {pos: [3, 4, 4], state: "minecraft:air"},
-        {pos: [4, 4, 0], state: "minecraft:air"},
-        {pos: [4, 4, 1], state: "minecraft:air"},
-        {pos: [4, 4, 2], state: "minecraft:air"},
-        {pos: [4, 4, 3], state: "minecraft:air"},
-        {pos: [4, 4, 4], state: "minecraft:air"}
+        {pos: [3, 2, 3], state: "computercraft:monitor_advanced{facing:north,orientation:north,state:rd}", nbt: {Height: 2, Width: 3, XIndex: 0, YIndex: 1, id: "computercraft:monitor_advanced"}}
     ],
     entities: [
         {blockPos: [2, 1, 0], pos: [2.5773471891671482d, 1.0d, 0.31606672131648317d], nbt: {AbsorptionAmount: 0.0f, Air: 300s, ArmorItems: [{}, {}, {}, {}], Attributes: [{Base: 0.699999988079071d, Name: "minecraft:generic.movement_speed"}], Brain: {memories: {}}, DeathTime: 0s, DisabledSlots: 0, FallDistance: 0.0f, FallFlying: 0b, Fire: 0s, HandItems: [{}, {}], Health: 20.0f, HurtByTimestamp: 0, HurtTime: 0s, Invisible: 1b, Invulnerable: 0b, Marker: 1b, Motion: [0.0d, 0.0d, 0.0d], NoBasePlate: 0b, OnGround: 0b, PortalCooldown: 0, Pos: [-5.422652810832852d, -58.0d, 14.316066721316483d], Pose: {}, Rotation: [0.0f, 0.0f], ShowArms: 0b, Small: 0b, UUID: [I; -1438461995, 798246633, -1208936981, 1180880781], id: "minecraft:armor_stand"}}
     ],
     palette: [
         "minecraft:polished_andesite",
-        "minecraft:air",
         "computercraft:monitor_advanced{facing:north,orientation:north,state:lu}",
         "computercraft:monitor_advanced{facing:north,orientation:north,state:lru}",
         "computercraft:monitor_advanced{facing:north,orientation:north,state:ru}",

projects/common/src/testMod/resources/data/cctest/structures/pocket_computer_test.data_fixers.snbt

@@ -27,111 +27,11 @@
         {pos: [4, 0, 2], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 3], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 4], state: "minecraft:polished_andesite"},
-        {pos: [0, 1, 0], state: "minecraft:air"},
-        {pos: [0, 1, 1], state: "minecraft:air"},
-        {pos: [0, 1, 2], state: "minecraft:air"},
-        {pos: [0, 1, 3], state: "minecraft:air"},
-        {pos: [0, 1, 4], state: "minecraft:air"},
-        {pos: [1, 1, 0], state: "minecraft:air"},
-        {pos: [1, 1, 1], state: "minecraft:air"},
-        {pos: [1, 1, 2], state: "minecraft:air"},
-        {pos: [1, 1, 3], state: "minecraft:air"},
-        {pos: [1, 1, 4], state: "minecraft:air"},
-        {pos: [2, 1, 0], state: "minecraft:air"},
-        {pos: [2, 1, 1], state: "minecraft:air"},
-        {pos: [2, 1, 2], state: "minecraft:chest{facing:north,type:single,waterlogged:false}", nbt: {Items: [{Count: 1b, Slot: 0b, id: "computercraft:pocket_computer_advanced", tag: {ComputerId: 123, Upgrade: "computercraft:wireless_modem_normal", display: {Name: '{"text":"Test"}'}}}], id: "minecraft:chest"}},
-        {pos: [2, 1, 3], state: "minecraft:air"},
-        {pos: [2, 1, 4], state: "minecraft:air"},
-        {pos: [3, 1, 0], state: "minecraft:air"},
-        {pos: [3, 1, 1], state: "minecraft:air"},
-        {pos: [3, 1, 2], state: "minecraft:air"},
-        {pos: [3, 1, 3], state: "minecraft:air"},
-        {pos: [3, 1, 4], state: "minecraft:air"},
-        {pos: [4, 1, 0], state: "minecraft:air"},
-        {pos: [4, 1, 1], state: "minecraft:air"},
-        {pos: [4, 1, 2], state: "minecraft:air"},
-        {pos: [4, 1, 3], state: "minecraft:air"},
-        {pos: [4, 1, 4], state: "minecraft:air"},
-        {pos: [0, 2, 0], state: "minecraft:air"},
-        {pos: [0, 2, 1], state: "minecraft:air"},
-        {pos: [0, 2, 2], state: "minecraft:air"},
-        {pos: [0, 2, 3], state: "minecraft:air"},
-        {pos: [0, 2, 4], state: "minecraft:air"},
-        {pos: [1, 2, 0], state: "minecraft:air"},
-        {pos: [1, 2, 1], state: "minecraft:air"},
-        {pos: [1, 2, 2], state: "minecraft:air"},
-        {pos: [1, 2, 3], state: "minecraft:air"},
-        {pos: [1, 2, 4], state: "minecraft:air"},
-        {pos: [2, 2, 0], state: "minecraft:air"},
-        {pos: [2, 2, 1], state: "minecraft:air"},
-        {pos: [2, 2, 2], state: "minecraft:air"},
-        {pos: [2, 2, 3], state: "minecraft:air"},
-        {pos: [2, 2, 4], state: "minecraft:air"},
-        {pos: [3, 2, 0], state: "minecraft:air"},
-        {pos: [3, 2, 1], state: "minecraft:air"},
-        {pos: [3, 2, 2], state: "minecraft:air"},
-        {pos: [3, 2, 3], state: "minecraft:air"},
-        {pos: [3, 2, 4], state: "minecraft:air"},
-        {pos: [4, 2, 0], state: "minecraft:air"},
-        {pos: [4, 2, 1], state: "minecraft:air"},
-        {pos: [4, 2, 2], state: "minecraft:air"},
-        {pos: [4, 2, 3], state: "minecraft:air"},
-        {pos: [4, 2, 4], state: "minecraft:air"},
-        {pos: [0, 3, 0], state: "minecraft:air"},
-        {pos: [0, 3, 1], state: "minecraft:air"},
-        {pos: [0, 3, 2], state: "minecraft:air"},
-        {pos: [0, 3, 3], state: "minecraft:air"},
-        {pos: [0, 3, 4], state: "minecraft:air"},
-        {pos: [1, 3, 0], state: "minecraft:air"},
-        {pos: [1, 3, 1], state: "minecraft:air"},
-        {pos: [1, 3, 2], state: "minecraft:air"},
-        {pos: [1, 3, 3], state: "minecraft:air"},
-        {pos: [1, 3, 4], state: "minecraft:air"},
-        {pos: [2, 3, 0], state: "minecraft:air"},
-        {pos: [2, 3, 1], state: "minecraft:air"},
-        {pos: [2, 3, 2], state: "minecraft:air"},
-        {pos: [2, 3, 3], state: "minecraft:air"},
-        {pos: [2, 3, 4], state: "minecraft:air"},
-        {pos: [3, 3, 0], state: "minecraft:air"},
-        {pos: [3, 3, 1], state: "minecraft:air"},
-        {pos: [3, 3, 2], state: "minecraft:air"},
-        {pos: [3, 3, 3], state: "minecraft:air"},
-        {pos: [3, 3, 4], state: "minecraft:air"},
-        {pos: [4, 3, 0], state: "minecraft:air"},
-        {pos: [4, 3, 1], state: "minecraft:air"},
-        {pos: [4, 3, 2], state: "minecraft:air"},
-        {pos: [4, 3, 3], state: "minecraft:air"},
-        {pos: [4, 3, 4], state: "minecraft:air"},
-        {pos: [0, 4, 0], state: "minecraft:air"},
-        {pos: [0, 4, 1], state: "minecraft:air"},
-        {pos: [0, 4, 2], state: "minecraft:air"},
-        {pos: [0, 4, 3], state: "minecraft:air"},
-        {pos: [0, 4, 4], state: "minecraft:air"},
-        {pos: [1, 4, 0], state: "minecraft:air"},
-        {pos: [1, 4, 1], state: "minecraft:air"},
-        {pos: [1, 4, 2], state: "minecraft:air"},
-        {pos: [1, 4, 3], state: "minecraft:air"},
-        {pos: [1, 4, 4], state: "minecraft:air"},
-        {pos: [2, 4, 0], state: "minecraft:air"},
-        {pos: [2, 4, 1], state: "minecraft:air"},
-        {pos: [2, 4, 2], state: "minecraft:air"},
-        {pos: [2, 4, 3], state: "minecraft:air"},
-        {pos: [2, 4, 4], state: "minecraft:air"},
-        {pos: [3, 4, 0], state: "minecraft:air"},
-        {pos: [3, 4, 1], state: "minecraft:air"},
-        {pos: [3, 4, 2], state: "minecraft:air"},
-        {pos: [3, 4, 3], state: "minecraft:air"},
-        {pos: [3, 4, 4], state: "minecraft:air"},
-        {pos: [4, 4, 0], state: "minecraft:air"},
-        {pos: [4, 4, 1], state: "minecraft:air"},
-        {pos: [4, 4, 2], state: "minecraft:air"},
-        {pos: [4, 4, 3], state: "minecraft:air"},
-        {pos: [4, 4, 4], state: "minecraft:air"}
+        {pos: [2, 1, 2], state: "minecraft:chest{facing:north,type:single,waterlogged:false}", nbt: {Items: [{Count: 1b, Slot: 0b, id: "computercraft:pocket_computer_advanced", tag: {ComputerId: 123, Upgrade: "computercraft:wireless_modem_normal", display: {Name: '{"text":"Test"}'}}}], id: "minecraft:chest"}}
     ],
     entities: [],
     palette: [
         "minecraft:polished_andesite",
-        "minecraft:air",
         "minecraft:chest{facing:north,type:single,waterlogged:false}"
     ]
 }

projects/common/src/testMod/resources/data/cctest/structures/printer_test.can_insert_items.snbt

@@ -0,0 +1,42 @@
+{
+    DataVersion: 3465,
+    size: [5, 5, 5],
+    data: [
+        {pos: [0, 0, 0], state: "minecraft:polished_andesite"},
+        {pos: [0, 0, 1], state: "minecraft:polished_andesite"},
+        {pos: [0, 0, 2], state: "minecraft:polished_andesite"},
+        {pos: [0, 0, 3], state: "minecraft:polished_andesite"},
+        {pos: [0, 0, 4], state: "minecraft:polished_andesite"},
+        {pos: [1, 0, 0], state: "minecraft:polished_andesite"},
+        {pos: [1, 0, 1], state: "minecraft:polished_andesite"},
+        {pos: [1, 0, 2], state: "minecraft:polished_andesite"},
+        {pos: [1, 0, 3], state: "minecraft:polished_andesite"},
+        {pos: [1, 0, 4], state: "minecraft:polished_andesite"},
+        {pos: [2, 0, 0], state: "minecraft:polished_andesite"},
+        {pos: [2, 0, 1], state: "minecraft:polished_andesite"},
+        {pos: [2, 0, 2], state: "minecraft:polished_andesite"},
+        {pos: [2, 0, 3], state: "minecraft:polished_andesite"},
+        {pos: [2, 0, 4], state: "minecraft:polished_andesite"},
+        {pos: [3, 0, 0], state: "minecraft:polished_andesite"},
+        {pos: [3, 0, 1], state: "minecraft:polished_andesite"},
+        {pos: [3, 0, 2], state: "minecraft:polished_andesite"},
+        {pos: [3, 0, 3], state: "minecraft:polished_andesite"},
+        {pos: [3, 0, 4], state: "minecraft:polished_andesite"},
+        {pos: [4, 0, 0], state: "minecraft:polished_andesite"},
+        {pos: [4, 0, 1], state: "minecraft:polished_andesite"},
+        {pos: [4, 0, 2], state: "minecraft:polished_andesite"},
+        {pos: [4, 0, 3], state: "minecraft:polished_andesite"},
+        {pos: [4, 0, 4], state: "minecraft:polished_andesite"},
+        {pos: [1, 1, 2], state: "computercraft:printer{bottom:false,facing:north,top:false}", nbt: {Items: [], PageTitle: "", Printing: 0b, id: "computercraft:printer", term_bgColour: 15, term_cursorBlink: 0b, term_cursorX: 0, term_cursorY: 0, term_palette: [I; 1118481, 13388876, 5744206, 8349260, 3368652, 11691749, 5020082, 10066329, 5000268, 15905484, 8375321, 14605932, 10072818, 15040472, 15905331, 15790320], term_textBgColour_0: "fffffffffffffffffffffffff", term_textBgColour_1: "fffffffffffffffffffffffff", term_textBgColour_10: "fffffffffffffffffffffffff", term_textBgColour_11: "fffffffffffffffffffffffff", term_textBgColour_12: "fffffffffffffffffffffffff", term_textBgColour_13: "fffffffffffffffffffffffff", term_textBgColour_14: "fffffffffffffffffffffffff", term_textBgColour_15: "fffffffffffffffffffffffff", term_textBgColour_16: "fffffffffffffffffffffffff", term_textBgColour_17: "fffffffffffffffffffffffff", term_textBgColour_18: "fffffffffffffffffffffffff", term_textBgColour_19: "fffffffffffffffffffffffff", term_textBgColour_2: "fffffffffffffffffffffffff", term_textBgColour_20: "fffffffffffffffffffffffff", term_textBgColour_3: "fffffffffffffffffffffffff", term_textBgColour_4: "fffffffffffffffffffffffff", term_textBgColour_5: "fffffffffffffffffffffffff", term_textBgColour_6: "fffffffffffffffffffffffff", term_textBgColour_7: "fffffffffffffffffffffffff", term_textBgColour_8: "fffffffffffffffffffffffff", term_textBgColour_9: "fffffffffffffffffffffffff", term_textColour: 0, term_textColour_0: "0000000000000000000000000", term_textColour_1: "0000000000000000000000000", term_textColour_10: "0000000000000000000000000", term_textColour_11: "0000000000000000000000000", term_textColour_12: "0000000000000000000000000", term_textColour_13: "0000000000000000000000000", term_textColour_14: "0000000000000000000000000", term_textColour_15: "0000000000000000000000000", term_textColour_16: "0000000000000000000000000", term_textColour_17: "0000000000000000000000000", term_textColour_18: "0000000000000000000000000", term_textColour_19: "0000000000000000000000000", term_textColour_2: "0000000000000000000000000", term_textColour_20: "0000000000000000000000000", term_textColour_3: "0000000000000000000000000", term_textColour_4: "0000000000000000000000000", term_textColour_5: "0000000000000000000000000", term_textColour_6: "0000000000000000000000000", term_textColour_7: "0000000000000000000000000", term_textColour_8: "0000000000000000000000000", term_textColour_9: "0000000000000000000000000", term_text_0: "                         ", term_text_1: "                         ", term_text_10: "                         ", term_text_11: "                         ", term_text_12: "                         ", term_text_13: "                         ", term_text_14: "                         ", term_text_15: "                         ", term_text_16: "                         ", term_text_17: "                         ", term_text_18: "                         ", term_text_19: "                         ", term_text_2: "                         ", term_text_20: "                         ", term_text_3: "                         ", term_text_4: "                         ", term_text_5: "                         ", term_text_6: "                         ", term_text_7: "                         ", term_text_8: "                         ", term_text_9: "                         "}},
+        {pos: [3, 1, 2], state: "computercraft:printer{bottom:false,facing:north,top:false}", nbt: {Items: [], PageTitle: "", Printing: 0b, id: "computercraft:printer", term_bgColour: 15, term_cursorBlink: 0b, term_cursorX: 0, term_cursorY: 0, term_palette: [I; 1118481, 13388876, 5744206, 8349260, 3368652, 11691749, 5020082, 10066329, 5000268, 15905484, 8375321, 14605932, 10072818, 15040472, 15905331, 15790320], term_textBgColour_0: "fffffffffffffffffffffffff", term_textBgColour_1: "fffffffffffffffffffffffff", term_textBgColour_10: "fffffffffffffffffffffffff", term_textBgColour_11: "fffffffffffffffffffffffff", term_textBgColour_12: "fffffffffffffffffffffffff", term_textBgColour_13: "fffffffffffffffffffffffff", term_textBgColour_14: "fffffffffffffffffffffffff", term_textBgColour_15: "fffffffffffffffffffffffff", term_textBgColour_16: "fffffffffffffffffffffffff", term_textBgColour_17: "fffffffffffffffffffffffff", term_textBgColour_18: "fffffffffffffffffffffffff", term_textBgColour_19: "fffffffffffffffffffffffff", term_textBgColour_2: "fffffffffffffffffffffffff", term_textBgColour_20: "fffffffffffffffffffffffff", term_textBgColour_3: "fffffffffffffffffffffffff", term_textBgColour_4: "fffffffffffffffffffffffff", term_textBgColour_5: "fffffffffffffffffffffffff", term_textBgColour_6: "fffffffffffffffffffffffff", term_textBgColour_7: "fffffffffffffffffffffffff", term_textBgColour_8: "fffffffffffffffffffffffff", term_textBgColour_9: "fffffffffffffffffffffffff", term_textColour: 0, term_textColour_0: "0000000000000000000000000", term_textColour_1: "0000000000000000000000000", term_textColour_10: "0000000000000000000000000", term_textColour_11: "0000000000000000000000000", term_textColour_12: "0000000000000000000000000", term_textColour_13: "0000000000000000000000000", term_textColour_14: "0000000000000000000000000", term_textColour_15: "0000000000000000000000000", term_textColour_16: "0000000000000000000000000", term_textColour_17: "0000000000000000000000000", term_textColour_18: "0000000000000000000000000", term_textColour_19: "0000000000000000000000000", term_textColour_2: "0000000000000000000000000", term_textColour_20: "0000000000000000000000000", term_textColour_3: "0000000000000000000000000", term_textColour_4: "0000000000000000000000000", term_textColour_5: "0000000000000000000000000", term_textColour_6: "0000000000000000000000000", term_textColour_7: "0000000000000000000000000", term_textColour_8: "0000000000000000000000000", term_textColour_9: "0000000000000000000000000", term_text_0: "                         ", term_text_1: "                         ", term_text_10: "                         ", term_text_11: "                         ", term_text_12: "                         ", term_text_13: "                         ", term_text_14: "                         ", term_text_15: "                         ", term_text_16: "                         ", term_text_17: "                         ", term_text_18: "                         ", term_text_19: "                         ", term_text_2: "                         ", term_text_20: "                         ", term_text_3: "                         ", term_text_4: "                         ", term_text_5: "                         ", term_text_6: "                         ", term_text_7: "                         ", term_text_8: "                         ", term_text_9: "                         "}},
+        {pos: [3, 1, 3], state: "minecraft:hopper{enabled:false,facing:north}", nbt: {Items: [{Count: 1b, Slot: 0b, id: "minecraft:black_dye"}, {Count: 1b, Slot: 1b, id: "minecraft:paper"}], TransferCooldown: 0, id: "minecraft:hopper"}},
+        {pos: [1, 2, 2], state: "minecraft:hopper{enabled:false,facing:down}", nbt: {Items: [{Count: 1b, Slot: 0b, id: "minecraft:black_dye"}, {Count: 1b, Slot: 1b, id: "minecraft:paper"}], TransferCooldown: 0, id: "minecraft:hopper"}}
+    ],
+    entities: [],
+    palette: [
+        "minecraft:polished_andesite",
+        "computercraft:printer{bottom:false,facing:north,top:false}",
+        "minecraft:hopper{enabled:false,facing:north}",
+        "minecraft:hopper{enabled:false,facing:down}"
+    ]
+}

projects/common/src/testMod/resources/data/cctest/structures/printer_test.comparator.snbt

@@ -27,111 +27,13 @@
         {pos: [4, 0, 2], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 3], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 4], state: "minecraft:polished_andesite"},
-        {pos: [0, 1, 0], state: "minecraft:air"},
-        {pos: [0, 1, 1], state: "minecraft:air"},
-        {pos: [0, 1, 2], state: "minecraft:air"},
-        {pos: [0, 1, 3], state: "minecraft:air"},
-        {pos: [0, 1, 4], state: "minecraft:air"},
-        {pos: [1, 1, 0], state: "minecraft:air"},
-        {pos: [1, 1, 1], state: "minecraft:air"},
-        {pos: [1, 1, 2], state: "minecraft:air"},
-        {pos: [1, 1, 3], state: "minecraft:air"},
-        {pos: [1, 1, 4], state: "minecraft:air"},
-        {pos: [2, 1, 0], state: "minecraft:air"},
-        {pos: [2, 1, 1], state: "minecraft:air"},
         {pos: [2, 1, 2], state: "computercraft:printer{bottom:false,facing:north,top:false}", nbt: {ForgeCaps: {}, Items: [], PageTitle: "", Printing: 0b, id: "computercraft:printer", term_bgColour: 15, term_cursorBlink: 0b, term_cursorX: 0, term_cursorY: 0, term_palette: [I; 1118481, 13388876, 5744206, 8349260, 3368652, 11691749, 5020082, 10066329, 5000268, 15905484, 8375321, 14605932, 10072818, 15040472, 15905331, 15790320], term_textBgColour_0: "fffffffffffffffffffffffff", term_textBgColour_1: "fffffffffffffffffffffffff", term_textBgColour_10: "fffffffffffffffffffffffff", term_textBgColour_11: "fffffffffffffffffffffffff", term_textBgColour_12: "fffffffffffffffffffffffff", term_textBgColour_13: "fffffffffffffffffffffffff", term_textBgColour_14: "fffffffffffffffffffffffff", term_textBgColour_15: "fffffffffffffffffffffffff", term_textBgColour_16: "fffffffffffffffffffffffff", term_textBgColour_17: "fffffffffffffffffffffffff", term_textBgColour_18: "fffffffffffffffffffffffff", term_textBgColour_19: "fffffffffffffffffffffffff", term_textBgColour_2: "fffffffffffffffffffffffff", term_textBgColour_20: "fffffffffffffffffffffffff", term_textBgColour_3: "fffffffffffffffffffffffff", term_textBgColour_4: "fffffffffffffffffffffffff", term_textBgColour_5: "fffffffffffffffffffffffff", term_textBgColour_6: "fffffffffffffffffffffffff", term_textBgColour_7: "fffffffffffffffffffffffff", term_textBgColour_8: "fffffffffffffffffffffffff", term_textBgColour_9: "fffffffffffffffffffffffff", term_textColour: 0, term_textColour_0: "0000000000000000000000000", term_textColour_1: "0000000000000000000000000", term_textColour_10: "0000000000000000000000000", term_textColour_11: "0000000000000000000000000", term_textColour_12: "0000000000000000000000000", term_textColour_13: "0000000000000000000000000", term_textColour_14: "0000000000000000000000000", term_textColour_15: "0000000000000000000000000", term_textColour_16: "0000000000000000000000000", term_textColour_17: "0000000000000000000000000", term_textColour_18: "0000000000000000000000000", term_textColour_19: "0000000000000000000000000", term_textColour_2: "0000000000000000000000000", term_textColour_20: "0000000000000000000000000", term_textColour_3: "0000000000000000000000000", term_textColour_4: "0000000000000000000000000", term_textColour_5: "0000000000000000000000000", term_textColour_6: "0000000000000000000000000", term_textColour_7: "0000000000000000000000000", term_textColour_8: "0000000000000000000000000", term_textColour_9: "0000000000000000000000000", term_text_0: "                         ", term_text_1: "                         ", term_text_10: "                         ", term_text_11: "                         ", term_text_12: "                         ", term_text_13: "                         ", term_text_14: "                         ", term_text_15: "                         ", term_text_16: "                         ", term_text_17: "                         ", term_text_18: "                         ", term_text_19: "                         ", term_text_2: "                         ", term_text_20: "                         ", term_text_3: "                         ", term_text_4: "                         ", term_text_5: "                         ", term_text_6: "                         ", term_text_7: "                         ", term_text_8: "                         ", term_text_9: "                         "}},
         {pos: [2, 1, 3], state: "minecraft:comparator{facing:north,mode:compare,powered:false}", nbt: {OutputSignal: 0, id: "minecraft:comparator"}},
-        {pos: [2, 1, 4], state: "minecraft:redstone_wire{east:none,north:side,power:0,south:side,west:none}"},
-        {pos: [3, 1, 0], state: "minecraft:air"},
-        {pos: [3, 1, 1], state: "minecraft:air"},
-        {pos: [3, 1, 2], state: "minecraft:air"},
-        {pos: [3, 1, 3], state: "minecraft:air"},
-        {pos: [3, 1, 4], state: "minecraft:air"},
-        {pos: [4, 1, 0], state: "minecraft:air"},
-        {pos: [4, 1, 1], state: "minecraft:air"},
-        {pos: [4, 1, 2], state: "minecraft:air"},
-        {pos: [4, 1, 3], state: "minecraft:air"},
-        {pos: [4, 1, 4], state: "minecraft:air"},
-        {pos: [0, 2, 0], state: "minecraft:air"},
-        {pos: [0, 2, 1], state: "minecraft:air"},
-        {pos: [0, 2, 2], state: "minecraft:air"},
-        {pos: [0, 2, 3], state: "minecraft:air"},
-        {pos: [0, 2, 4], state: "minecraft:air"},
-        {pos: [1, 2, 0], state: "minecraft:air"},
-        {pos: [1, 2, 1], state: "minecraft:air"},
-        {pos: [1, 2, 2], state: "minecraft:air"},
-        {pos: [1, 2, 3], state: "minecraft:air"},
-        {pos: [1, 2, 4], state: "minecraft:air"},
-        {pos: [2, 2, 0], state: "minecraft:air"},
-        {pos: [2, 2, 1], state: "minecraft:air"},
-        {pos: [2, 2, 2], state: "minecraft:air"},
-        {pos: [2, 2, 3], state: "minecraft:air"},
-        {pos: [2, 2, 4], state: "minecraft:air"},
-        {pos: [3, 2, 0], state: "minecraft:air"},
-        {pos: [3, 2, 1], state: "minecraft:air"},
-        {pos: [3, 2, 2], state: "minecraft:air"},
-        {pos: [3, 2, 3], state: "minecraft:air"},
-        {pos: [3, 2, 4], state: "minecraft:air"},
-        {pos: [4, 2, 0], state: "minecraft:air"},
-        {pos: [4, 2, 1], state: "minecraft:air"},
-        {pos: [4, 2, 2], state: "minecraft:air"},
-        {pos: [4, 2, 3], state: "minecraft:air"},
-        {pos: [4, 2, 4], state: "minecraft:air"},
-        {pos: [0, 3, 0], state: "minecraft:air"},
-        {pos: [0, 3, 1], state: "minecraft:air"},
-        {pos: [0, 3, 2], state: "minecraft:air"},
-        {pos: [0, 3, 3], state: "minecraft:air"},
-        {pos: [0, 3, 4], state: "minecraft:air"},
-        {pos: [1, 3, 0], state: "minecraft:air"},
-        {pos: [1, 3, 1], state: "minecraft:air"},
-        {pos: [1, 3, 2], state: "minecraft:air"},
-        {pos: [1, 3, 3], state: "minecraft:air"},
-        {pos: [1, 3, 4], state: "minecraft:air"},
-        {pos: [2, 3, 0], state: "minecraft:air"},
-        {pos: [2, 3, 1], state: "minecraft:air"},
-        {pos: [2, 3, 2], state: "minecraft:air"},
-        {pos: [2, 3, 3], state: "minecraft:air"},
-        {pos: [2, 3, 4], state: "minecraft:air"},
-        {pos: [3, 3, 0], state: "minecraft:air"},
-        {pos: [3, 3, 1], state: "minecraft:air"},
-        {pos: [3, 3, 2], state: "minecraft:air"},
-        {pos: [3, 3, 3], state: "minecraft:air"},
-        {pos: [3, 3, 4], state: "minecraft:air"},
-        {pos: [4, 3, 0], state: "minecraft:air"},
-        {pos: [4, 3, 1], state: "minecraft:air"},
-        {pos: [4, 3, 2], state: "minecraft:air"},
-        {pos: [4, 3, 3], state: "minecraft:air"},
-        {pos: [4, 3, 4], state: "minecraft:air"},
-        {pos: [0, 4, 0], state: "minecraft:air"},
-        {pos: [0, 4, 1], state: "minecraft:air"},
-        {pos: [0, 4, 2], state: "minecraft:air"},
-        {pos: [0, 4, 3], state: "minecraft:air"},
-        {pos: [0, 4, 4], state: "minecraft:air"},
-        {pos: [1, 4, 0], state: "minecraft:air"},
-        {pos: [1, 4, 1], state: "minecraft:air"},
-        {pos: [1, 4, 2], state: "minecraft:air"},
-        {pos: [1, 4, 3], state: "minecraft:air"},
-        {pos: [1, 4, 4], state: "minecraft:air"},
-        {pos: [2, 4, 0], state: "minecraft:air"},
-        {pos: [2, 4, 1], state: "minecraft:air"},
-        {pos: [2, 4, 2], state: "minecraft:air"},
-        {pos: [2, 4, 3], state: "minecraft:air"},
-        {pos: [2, 4, 4], state: "minecraft:air"},
-        {pos: [3, 4, 0], state: "minecraft:air"},
-        {pos: [3, 4, 1], state: "minecraft:air"},
-        {pos: [3, 4, 2], state: "minecraft:air"},
-        {pos: [3, 4, 3], state: "minecraft:air"},
-        {pos: [3, 4, 4], state: "minecraft:air"},
-        {pos: [4, 4, 0], state: "minecraft:air"},
-        {pos: [4, 4, 1], state: "minecraft:air"},
-        {pos: [4, 4, 2], state: "minecraft:air"},
-        {pos: [4, 4, 3], state: "minecraft:air"},
-        {pos: [4, 4, 4], state: "minecraft:air"}
+        {pos: [2, 1, 4], state: "minecraft:redstone_wire{east:none,north:side,power:0,south:side,west:none}"}
     ],
     entities: [],
     palette: [
         "minecraft:polished_andesite",
-        "minecraft:air",
         "minecraft:redstone_wire{east:none,north:side,power:0,south:side,west:none}",
         "computercraft:printer{bottom:false,facing:north,top:false}",
         "minecraft:comparator{facing:north,mode:compare,powered:false}"

projects/common/src/testMod/resources/data/cctest/structures/printer_test.drops_contents.snbt

@@ -27,111 +27,11 @@
         {pos: [4, 0, 2], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 3], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 4], state: "minecraft:polished_andesite"},
-        {pos: [0, 1, 0], state: "minecraft:air"},
-        {pos: [0, 1, 1], state: "minecraft:air"},
-        {pos: [0, 1, 2], state: "minecraft:air"},
-        {pos: [0, 1, 3], state: "minecraft:air"},
-        {pos: [0, 1, 4], state: "minecraft:air"},
-        {pos: [1, 1, 0], state: "minecraft:air"},
-        {pos: [1, 1, 1], state: "minecraft:air"},
-        {pos: [1, 1, 2], state: "minecraft:air"},
-        {pos: [1, 1, 3], state: "minecraft:air"},
-        {pos: [1, 1, 4], state: "minecraft:air"},
-        {pos: [2, 1, 0], state: "minecraft:air"},
-        {pos: [2, 1, 1], state: "minecraft:air"},
-        {pos: [2, 1, 2], state: "computercraft:printer{bottom:false,facing:north,top:true}", nbt: {CustomName: '{"text":"My Printer"}', ForgeCaps: {}, Items: [{Count: 1b, Slot: 0b, id: "minecraft:black_dye"}, {Count: 1b, Slot: 1b, id: "minecraft:paper"}], PageTitle: "", Printing: 0b, id: "computercraft:printer", term_bgColour: 15, term_cursorBlink: 0b, term_cursorX: 0, term_cursorY: 0, term_palette: [I; 1118481, 13388876, 5744206, 8349260, 3368652, 11691749, 5020082, 10066329, 5000268, 15905484, 8375321, 14605932, 10072818, 15040472, 15905331, 15790320], term_textBgColour_0: "fffffffffffffffffffffffff", term_textBgColour_1: "fffffffffffffffffffffffff", term_textBgColour_10: "fffffffffffffffffffffffff", term_textBgColour_11: "fffffffffffffffffffffffff", term_textBgColour_12: "fffffffffffffffffffffffff", term_textBgColour_13: "fffffffffffffffffffffffff", term_textBgColour_14: "fffffffffffffffffffffffff", term_textBgColour_15: "fffffffffffffffffffffffff", term_textBgColour_16: "fffffffffffffffffffffffff", term_textBgColour_17: "fffffffffffffffffffffffff", term_textBgColour_18: "fffffffffffffffffffffffff", term_textBgColour_19: "fffffffffffffffffffffffff", term_textBgColour_2: "fffffffffffffffffffffffff", term_textBgColour_20: "fffffffffffffffffffffffff", term_textBgColour_3: "fffffffffffffffffffffffff", term_textBgColour_4: "fffffffffffffffffffffffff", term_textBgColour_5: "fffffffffffffffffffffffff", term_textBgColour_6: "fffffffffffffffffffffffff", term_textBgColour_7: "fffffffffffffffffffffffff", term_textBgColour_8: "fffffffffffffffffffffffff", term_textBgColour_9: "fffffffffffffffffffffffff", term_textColour: 0, term_textColour_0: "0000000000000000000000000", term_textColour_1: "0000000000000000000000000", term_textColour_10: "0000000000000000000000000", term_textColour_11: "0000000000000000000000000", term_textColour_12: "0000000000000000000000000", term_textColour_13: "0000000000000000000000000", term_textColour_14: "0000000000000000000000000", term_textColour_15: "0000000000000000000000000", term_textColour_16: "0000000000000000000000000", term_textColour_17: "0000000000000000000000000", term_textColour_18: "0000000000000000000000000", term_textColour_19: "0000000000000000000000000", term_textColour_2: "0000000000000000000000000", term_textColour_20: "0000000000000000000000000", term_textColour_3: "0000000000000000000000000", term_textColour_4: "0000000000000000000000000", term_textColour_5: "0000000000000000000000000", term_textColour_6: "0000000000000000000000000", term_textColour_7: "0000000000000000000000000", term_textColour_8: "0000000000000000000000000", term_textColour_9: "0000000000000000000000000", term_text_0: "                         ", term_text_1: "                         ", term_text_10: "                         ", term_text_11: "                         ", term_text_12: "                         ", term_text_13: "                         ", term_text_14: "                         ", term_text_15: "                         ", term_text_16: "                         ", term_text_17: "                         ", term_text_18: "                         ", term_text_19: "                         ", term_text_2: "                         ", term_text_20: "                         ", term_text_3: "                         ", term_text_4: "                         ", term_text_5: "                         ", term_text_6: "                         ", term_text_7: "                         ", term_text_8: "                         ", term_text_9: "                         "}},
-        {pos: [2, 1, 3], state: "minecraft:air"},
-        {pos: [2, 1, 4], state: "minecraft:air"},
-        {pos: [3, 1, 0], state: "minecraft:air"},
-        {pos: [3, 1, 1], state: "minecraft:air"},
-        {pos: [3, 1, 2], state: "minecraft:air"},
-        {pos: [3, 1, 3], state: "minecraft:air"},
-        {pos: [3, 1, 4], state: "minecraft:air"},
-        {pos: [4, 1, 0], state: "minecraft:air"},
-        {pos: [4, 1, 1], state: "minecraft:air"},
-        {pos: [4, 1, 2], state: "minecraft:air"},
-        {pos: [4, 1, 3], state: "minecraft:air"},
-        {pos: [4, 1, 4], state: "minecraft:air"},
-        {pos: [0, 2, 0], state: "minecraft:air"},
-        {pos: [0, 2, 1], state: "minecraft:air"},
-        {pos: [0, 2, 2], state: "minecraft:air"},
-        {pos: [0, 2, 3], state: "minecraft:air"},
-        {pos: [0, 2, 4], state: "minecraft:air"},
-        {pos: [1, 2, 0], state: "minecraft:air"},
-        {pos: [1, 2, 1], state: "minecraft:air"},
-        {pos: [1, 2, 2], state: "minecraft:air"},
-        {pos: [1, 2, 3], state: "minecraft:air"},
-        {pos: [1, 2, 4], state: "minecraft:air"},
-        {pos: [2, 2, 0], state: "minecraft:air"},
-        {pos: [2, 2, 1], state: "minecraft:air"},
-        {pos: [2, 2, 2], state: "minecraft:air"},
-        {pos: [2, 2, 3], state: "minecraft:air"},
-        {pos: [2, 2, 4], state: "minecraft:air"},
-        {pos: [3, 2, 0], state: "minecraft:air"},
-        {pos: [3, 2, 1], state: "minecraft:air"},
-        {pos: [3, 2, 2], state: "minecraft:air"},
-        {pos: [3, 2, 3], state: "minecraft:air"},
-        {pos: [3, 2, 4], state: "minecraft:air"},
-        {pos: [4, 2, 0], state: "minecraft:air"},
-        {pos: [4, 2, 1], state: "minecraft:air"},
-        {pos: [4, 2, 2], state: "minecraft:air"},
-        {pos: [4, 2, 3], state: "minecraft:air"},
-        {pos: [4, 2, 4], state: "minecraft:air"},
-        {pos: [0, 3, 0], state: "minecraft:air"},
-        {pos: [0, 3, 1], state: "minecraft:air"},
-        {pos: [0, 3, 2], state: "minecraft:air"},
-        {pos: [0, 3, 3], state: "minecraft:air"},
-        {pos: [0, 3, 4], state: "minecraft:air"},
-        {pos: [1, 3, 0], state: "minecraft:air"},
-        {pos: [1, 3, 1], state: "minecraft:air"},
-        {pos: [1, 3, 2], state: "minecraft:air"},
-        {pos: [1, 3, 3], state: "minecraft:air"},
-        {pos: [1, 3, 4], state: "minecraft:air"},
-        {pos: [2, 3, 0], state: "minecraft:air"},
-        {pos: [2, 3, 1], state: "minecraft:air"},
-        {pos: [2, 3, 2], state: "minecraft:air"},
-        {pos: [2, 3, 3], state: "minecraft:air"},
-        {pos: [2, 3, 4], state: "minecraft:air"},
-        {pos: [3, 3, 0], state: "minecraft:air"},
-        {pos: [3, 3, 1], state: "minecraft:air"},
-        {pos: [3, 3, 2], state: "minecraft:air"},
-        {pos: [3, 3, 3], state: "minecraft:air"},
-        {pos: [3, 3, 4], state: "minecraft:air"},
-        {pos: [4, 3, 0], state: "minecraft:air"},
-        {pos: [4, 3, 1], state: "minecraft:air"},
-        {pos: [4, 3, 2], state: "minecraft:air"},
-        {pos: [4, 3, 3], state: "minecraft:air"},
-        {pos: [4, 3, 4], state: "minecraft:air"},
-        {pos: [0, 4, 0], state: "minecraft:air"},
-        {pos: [0, 4, 1], state: "minecraft:air"},
-        {pos: [0, 4, 2], state: "minecraft:air"},
-        {pos: [0, 4, 3], state: "minecraft:air"},
-        {pos: [0, 4, 4], state: "minecraft:air"},
-        {pos: [1, 4, 0], state: "minecraft:air"},
-        {pos: [1, 4, 1], state: "minecraft:air"},
-        {pos: [1, 4, 2], state: "minecraft:air"},
-        {pos: [1, 4, 3], state: "minecraft:air"},
-        {pos: [1, 4, 4], state: "minecraft:air"},
-        {pos: [2, 4, 0], state: "minecraft:air"},
-        {pos: [2, 4, 1], state: "minecraft:air"},
-        {pos: [2, 4, 2], state: "minecraft:air"},
-        {pos: [2, 4, 3], state: "minecraft:air"},
-        {pos: [2, 4, 4], state: "minecraft:air"},
-        {pos: [3, 4, 0], state: "minecraft:air"},
-        {pos: [3, 4, 1], state: "minecraft:air"},
-        {pos: [3, 4, 2], state: "minecraft:air"},
-        {pos: [3, 4, 3], state: "minecraft:air"},
-        {pos: [3, 4, 4], state: "minecraft:air"},
-        {pos: [4, 4, 0], state: "minecraft:air"},
-        {pos: [4, 4, 1], state: "minecraft:air"},
-        {pos: [4, 4, 2], state: "minecraft:air"},
-        {pos: [4, 4, 3], state: "minecraft:air"},
-        {pos: [4, 4, 4], state: "minecraft:air"}
+        {pos: [2, 1, 2], state: "computercraft:printer{bottom:false,facing:north,top:true}", nbt: {CustomName: '{"text":"My Printer"}', ForgeCaps: {}, Items: [{Count: 1b, Slot: 0b, id: "minecraft:black_dye"}, {Count: 1b, Slot: 1b, id: "minecraft:paper"}], PageTitle: "", Printing: 0b, id: "computercraft:printer", term_bgColour: 15, term_cursorBlink: 0b, term_cursorX: 0, term_cursorY: 0, term_palette: [I; 1118481, 13388876, 5744206, 8349260, 3368652, 11691749, 5020082, 10066329, 5000268, 15905484, 8375321, 14605932, 10072818, 15040472, 15905331, 15790320], term_textBgColour_0: "fffffffffffffffffffffffff", term_textBgColour_1: "fffffffffffffffffffffffff", term_textBgColour_10: "fffffffffffffffffffffffff", term_textBgColour_11: "fffffffffffffffffffffffff", term_textBgColour_12: "fffffffffffffffffffffffff", term_textBgColour_13: "fffffffffffffffffffffffff", term_textBgColour_14: "fffffffffffffffffffffffff", term_textBgColour_15: "fffffffffffffffffffffffff", term_textBgColour_16: "fffffffffffffffffffffffff", term_textBgColour_17: "fffffffffffffffffffffffff", term_textBgColour_18: "fffffffffffffffffffffffff", term_textBgColour_19: "fffffffffffffffffffffffff", term_textBgColour_2: "fffffffffffffffffffffffff", term_textBgColour_20: "fffffffffffffffffffffffff", term_textBgColour_3: "fffffffffffffffffffffffff", term_textBgColour_4: "fffffffffffffffffffffffff", term_textBgColour_5: "fffffffffffffffffffffffff", term_textBgColour_6: "fffffffffffffffffffffffff", term_textBgColour_7: "fffffffffffffffffffffffff", term_textBgColour_8: "fffffffffffffffffffffffff", term_textBgColour_9: "fffffffffffffffffffffffff", term_textColour: 0, term_textColour_0: "0000000000000000000000000", term_textColour_1: "0000000000000000000000000", term_textColour_10: "0000000000000000000000000", term_textColour_11: "0000000000000000000000000", term_textColour_12: "0000000000000000000000000", term_textColour_13: "0000000000000000000000000", term_textColour_14: "0000000000000000000000000", term_textColour_15: "0000000000000000000000000", term_textColour_16: "0000000000000000000000000", term_textColour_17: "0000000000000000000000000", term_textColour_18: "0000000000000000000000000", term_textColour_19: "0000000000000000000000000", term_textColour_2: "0000000000000000000000000", term_textColour_20: "0000000000000000000000000", term_textColour_3: "0000000000000000000000000", term_textColour_4: "0000000000000000000000000", term_textColour_5: "0000000000000000000000000", term_textColour_6: "0000000000000000000000000", term_textColour_7: "0000000000000000000000000", term_textColour_8: "0000000000000000000000000", term_textColour_9: "0000000000000000000000000", term_text_0: "                         ", term_text_1: "                         ", term_text_10: "                         ", term_text_11: "                         ", term_text_12: "                         ", term_text_13: "                         ", term_text_14: "                         ", term_text_15: "                         ", term_text_16: "                         ", term_text_17: "                         ", term_text_18: "                         ", term_text_19: "                         ", term_text_2: "                         ", term_text_20: "                         ", term_text_3: "                         ", term_text_4: "                         ", term_text_5: "                         ", term_text_6: "                         ", term_text_7: "                         ", term_text_8: "                         ", term_text_9: "                         "}}
     ],
     entities: [],
     palette: [
         "minecraft:polished_andesite",
-        "minecraft:air",
         "computercraft:printer{bottom:false,facing:north,top:true}"
     ]
 }

projects/common/src/testMod/resources/data/cctest/structures/printer_test.empty.snbt

@@ -27,111 +27,11 @@
         {pos: [4, 0, 2], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 3], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 4], state: "minecraft:polished_andesite"},
-        {pos: [0, 1, 0], state: "minecraft:air"},
-        {pos: [0, 1, 1], state: "minecraft:air"},
-        {pos: [0, 1, 2], state: "minecraft:air"},
-        {pos: [0, 1, 3], state: "minecraft:air"},
-        {pos: [0, 1, 4], state: "minecraft:air"},
-        {pos: [1, 1, 0], state: "minecraft:air"},
-        {pos: [1, 1, 1], state: "minecraft:air"},
-        {pos: [1, 1, 2], state: "minecraft:air"},
-        {pos: [1, 1, 3], state: "minecraft:air"},
-        {pos: [1, 1, 4], state: "minecraft:air"},
-        {pos: [2, 1, 0], state: "minecraft:air"},
-        {pos: [2, 1, 1], state: "minecraft:air"},
-        {pos: [2, 1, 2], state: "computercraft:printer{bottom:false,facing:north,top:false}", nbt: {ForgeCaps: {}, Items: [], PageTitle: "", Printing: 0b, id: "computercraft:printer", term_bgColour: 15, term_cursorBlink: 0b, term_cursorX: 0, term_cursorY: 0, term_palette: [I; 1118481, 13388876, 5744206, 8349260, 3368652, 11691749, 5020082, 10066329, 5000268, 15905484, 8375321, 14605932, 10072818, 15040472, 15905331, 15790320], term_textBgColour_0: "fffffffffffffffffffffffff", term_textBgColour_1: "fffffffffffffffffffffffff", term_textBgColour_10: "fffffffffffffffffffffffff", term_textBgColour_11: "fffffffffffffffffffffffff", term_textBgColour_12: "fffffffffffffffffffffffff", term_textBgColour_13: "fffffffffffffffffffffffff", term_textBgColour_14: "fffffffffffffffffffffffff", term_textBgColour_15: "fffffffffffffffffffffffff", term_textBgColour_16: "fffffffffffffffffffffffff", term_textBgColour_17: "fffffffffffffffffffffffff", term_textBgColour_18: "fffffffffffffffffffffffff", term_textBgColour_19: "fffffffffffffffffffffffff", term_textBgColour_2: "fffffffffffffffffffffffff", term_textBgColour_20: "fffffffffffffffffffffffff", term_textBgColour_3: "fffffffffffffffffffffffff", term_textBgColour_4: "fffffffffffffffffffffffff", term_textBgColour_5: "fffffffffffffffffffffffff", term_textBgColour_6: "fffffffffffffffffffffffff", term_textBgColour_7: "fffffffffffffffffffffffff", term_textBgColour_8: "fffffffffffffffffffffffff", term_textBgColour_9: "fffffffffffffffffffffffff", term_textColour: 0, term_textColour_0: "0000000000000000000000000", term_textColour_1: "0000000000000000000000000", term_textColour_10: "0000000000000000000000000", term_textColour_11: "0000000000000000000000000", term_textColour_12: "0000000000000000000000000", term_textColour_13: "0000000000000000000000000", term_textColour_14: "0000000000000000000000000", term_textColour_15: "0000000000000000000000000", term_textColour_16: "0000000000000000000000000", term_textColour_17: "0000000000000000000000000", term_textColour_18: "0000000000000000000000000", term_textColour_19: "0000000000000000000000000", term_textColour_2: "0000000000000000000000000", term_textColour_20: "0000000000000000000000000", term_textColour_3: "0000000000000000000000000", term_textColour_4: "0000000000000000000000000", term_textColour_5: "0000000000000000000000000", term_textColour_6: "0000000000000000000000000", term_textColour_7: "0000000000000000000000000", term_textColour_8: "0000000000000000000000000", term_textColour_9: "0000000000000000000000000", term_text_0: "                         ", term_text_1: "                         ", term_text_10: "                         ", term_text_11: "                         ", term_text_12: "                         ", term_text_13: "                         ", term_text_14: "                         ", term_text_15: "                         ", term_text_16: "                         ", term_text_17: "                         ", term_text_18: "                         ", term_text_19: "                         ", term_text_2: "                         ", term_text_20: "                         ", term_text_3: "                         ", term_text_4: "                         ", term_text_5: "                         ", term_text_6: "                         ", term_text_7: "                         ", term_text_8: "                         ", term_text_9: "                         "}},
-        {pos: [2, 1, 3], state: "minecraft:air"},
-        {pos: [2, 1, 4], state: "minecraft:air"},
-        {pos: [3, 1, 0], state: "minecraft:air"},
-        {pos: [3, 1, 1], state: "minecraft:air"},
-        {pos: [3, 1, 2], state: "minecraft:air"},
-        {pos: [3, 1, 3], state: "minecraft:air"},
-        {pos: [3, 1, 4], state: "minecraft:air"},
-        {pos: [4, 1, 0], state: "minecraft:air"},
-        {pos: [4, 1, 1], state: "minecraft:air"},
-        {pos: [4, 1, 2], state: "minecraft:air"},
-        {pos: [4, 1, 3], state: "minecraft:air"},
-        {pos: [4, 1, 4], state: "minecraft:air"},
-        {pos: [0, 2, 0], state: "minecraft:air"},
-        {pos: [0, 2, 1], state: "minecraft:air"},
-        {pos: [0, 2, 2], state: "minecraft:air"},
-        {pos: [0, 2, 3], state: "minecraft:air"},
-        {pos: [0, 2, 4], state: "minecraft:air"},
-        {pos: [1, 2, 0], state: "minecraft:air"},
-        {pos: [1, 2, 1], state: "minecraft:air"},
-        {pos: [1, 2, 2], state: "minecraft:air"},
-        {pos: [1, 2, 3], state: "minecraft:air"},
-        {pos: [1, 2, 4], state: "minecraft:air"},
-        {pos: [2, 2, 0], state: "minecraft:air"},
-        {pos: [2, 2, 1], state: "minecraft:air"},
-        {pos: [2, 2, 2], state: "minecraft:air"},
-        {pos: [2, 2, 3], state: "minecraft:air"},
-        {pos: [2, 2, 4], state: "minecraft:air"},
-        {pos: [3, 2, 0], state: "minecraft:air"},
-        {pos: [3, 2, 1], state: "minecraft:air"},
-        {pos: [3, 2, 2], state: "minecraft:air"},
-        {pos: [3, 2, 3], state: "minecraft:air"},
-        {pos: [3, 2, 4], state: "minecraft:air"},
-        {pos: [4, 2, 0], state: "minecraft:air"},
-        {pos: [4, 2, 1], state: "minecraft:air"},
-        {pos: [4, 2, 2], state: "minecraft:air"},
-        {pos: [4, 2, 3], state: "minecraft:air"},
-        {pos: [4, 2, 4], state: "minecraft:air"},
-        {pos: [0, 3, 0], state: "minecraft:air"},
-        {pos: [0, 3, 1], state: "minecraft:air"},
-        {pos: [0, 3, 2], state: "minecraft:air"},
-        {pos: [0, 3, 3], state: "minecraft:air"},
-        {pos: [0, 3, 4], state: "minecraft:air"},
-        {pos: [1, 3, 0], state: "minecraft:air"},
-        {pos: [1, 3, 1], state: "minecraft:air"},
-        {pos: [1, 3, 2], state: "minecraft:air"},
-        {pos: [1, 3, 3], state: "minecraft:air"},
-        {pos: [1, 3, 4], state: "minecraft:air"},
-        {pos: [2, 3, 0], state: "minecraft:air"},
-        {pos: [2, 3, 1], state: "minecraft:air"},
-        {pos: [2, 3, 2], state: "minecraft:air"},
-        {pos: [2, 3, 3], state: "minecraft:air"},
-        {pos: [2, 3, 4], state: "minecraft:air"},
-        {pos: [3, 3, 0], state: "minecraft:air"},
-        {pos: [3, 3, 1], state: "minecraft:air"},
-        {pos: [3, 3, 2], state: "minecraft:air"},
-        {pos: [3, 3, 3], state: "minecraft:air"},
-        {pos: [3, 3, 4], state: "minecraft:air"},
-        {pos: [4, 3, 0], state: "minecraft:air"},
-        {pos: [4, 3, 1], state: "minecraft:air"},
-        {pos: [4, 3, 2], state: "minecraft:air"},
-        {pos: [4, 3, 3], state: "minecraft:air"},
-        {pos: [4, 3, 4], state: "minecraft:air"},
-        {pos: [0, 4, 0], state: "minecraft:air"},
-        {pos: [0, 4, 1], state: "minecraft:air"},
-        {pos: [0, 4, 2], state: "minecraft:air"},
-        {pos: [0, 4, 3], state: "minecraft:air"},
-        {pos: [0, 4, 4], state: "minecraft:air"},
-        {pos: [1, 4, 0], state: "minecraft:air"},
-        {pos: [1, 4, 1], state: "minecraft:air"},
-        {pos: [1, 4, 2], state: "minecraft:air"},
-        {pos: [1, 4, 3], state: "minecraft:air"},
-        {pos: [1, 4, 4], state: "minecraft:air"},
-        {pos: [2, 4, 0], state: "minecraft:air"},
-        {pos: [2, 4, 1], state: "minecraft:air"},
-        {pos: [2, 4, 2], state: "minecraft:air"},
-        {pos: [2, 4, 3], state: "minecraft:air"},
-        {pos: [2, 4, 4], state: "minecraft:air"},
-        {pos: [3, 4, 0], state: "minecraft:air"},
-        {pos: [3, 4, 1], state: "minecraft:air"},
-        {pos: [3, 4, 2], state: "minecraft:air"},
-        {pos: [3, 4, 3], state: "minecraft:air"},
-        {pos: [3, 4, 4], state: "minecraft:air"},
-        {pos: [4, 4, 0], state: "minecraft:air"},
-        {pos: [4, 4, 1], state: "minecraft:air"},
-        {pos: [4, 4, 2], state: "minecraft:air"},
-        {pos: [4, 4, 3], state: "minecraft:air"},
-        {pos: [4, 4, 4], state: "minecraft:air"}
+        {pos: [2, 1, 2], state: "computercraft:printer{bottom:false,facing:north,top:false}", nbt: {ForgeCaps: {}, Items: [], PageTitle: "", Printing: 0b, id: "computercraft:printer", term_bgColour: 15, term_cursorBlink: 0b, term_cursorX: 0, term_cursorY: 0, term_palette: [I; 1118481, 13388876, 5744206, 8349260, 3368652, 11691749, 5020082, 10066329, 5000268, 15905484, 8375321, 14605932, 10072818, 15040472, 15905331, 15790320], term_textBgColour_0: "fffffffffffffffffffffffff", term_textBgColour_1: "fffffffffffffffffffffffff", term_textBgColour_10: "fffffffffffffffffffffffff", term_textBgColour_11: "fffffffffffffffffffffffff", term_textBgColour_12: "fffffffffffffffffffffffff", term_textBgColour_13: "fffffffffffffffffffffffff", term_textBgColour_14: "fffffffffffffffffffffffff", term_textBgColour_15: "fffffffffffffffffffffffff", term_textBgColour_16: "fffffffffffffffffffffffff", term_textBgColour_17: "fffffffffffffffffffffffff", term_textBgColour_18: "fffffffffffffffffffffffff", term_textBgColour_19: "fffffffffffffffffffffffff", term_textBgColour_2: "fffffffffffffffffffffffff", term_textBgColour_20: "fffffffffffffffffffffffff", term_textBgColour_3: "fffffffffffffffffffffffff", term_textBgColour_4: "fffffffffffffffffffffffff", term_textBgColour_5: "fffffffffffffffffffffffff", term_textBgColour_6: "fffffffffffffffffffffffff", term_textBgColour_7: "fffffffffffffffffffffffff", term_textBgColour_8: "fffffffffffffffffffffffff", term_textBgColour_9: "fffffffffffffffffffffffff", term_textColour: 0, term_textColour_0: "0000000000000000000000000", term_textColour_1: "0000000000000000000000000", term_textColour_10: "0000000000000000000000000", term_textColour_11: "0000000000000000000000000", term_textColour_12: "0000000000000000000000000", term_textColour_13: "0000000000000000000000000", term_textColour_14: "0000000000000000000000000", term_textColour_15: "0000000000000000000000000", term_textColour_16: "0000000000000000000000000", term_textColour_17: "0000000000000000000000000", term_textColour_18: "0000000000000000000000000", term_textColour_19: "0000000000000000000000000", term_textColour_2: "0000000000000000000000000", term_textColour_20: "0000000000000000000000000", term_textColour_3: "0000000000000000000000000", term_textColour_4: "0000000000000000000000000", term_textColour_5: "0000000000000000000000000", term_textColour_6: "0000000000000000000000000", term_textColour_7: "0000000000000000000000000", term_textColour_8: "0000000000000000000000000", term_textColour_9: "0000000000000000000000000", term_text_0: "                         ", term_text_1: "                         ", term_text_10: "                         ", term_text_11: "                         ", term_text_12: "                         ", term_text_13: "                         ", term_text_14: "                         ", term_text_15: "                         ", term_text_16: "                         ", term_text_17: "                         ", term_text_18: "                         ", term_text_19: "                         ", term_text_2: "                         ", term_text_20: "                         ", term_text_3: "                         ", term_text_4: "                         ", term_text_5: "                         ", term_text_6: "                         ", term_text_7: "                         ", term_text_8: "                         ", term_text_9: "                         "}}
     ],
     entities: [],
     palette: [
         "minecraft:polished_andesite",
-        "minecraft:air",
         "computercraft:printer{bottom:false,facing:north,top:false}"
     ]
 }

projects/common/src/testMod/resources/data/cctest/structures/printout_test.render_in_frame.snbt

@@ -27,113 +27,14 @@
         {pos: [4, 0, 2], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 3], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 4], state: "minecraft:polished_andesite"},
-        {pos: [0, 1, 0], state: "minecraft:air"},
-        {pos: [0, 1, 1], state: "minecraft:air"},
-        {pos: [0, 1, 2], state: "minecraft:air"},
-        {pos: [0, 1, 3], state: "minecraft:air"},
-        {pos: [0, 1, 4], state: "minecraft:air"},
-        {pos: [1, 1, 0], state: "minecraft:air"},
-        {pos: [1, 1, 1], state: "minecraft:air"},
-        {pos: [1, 1, 2], state: "minecraft:air"},
-        {pos: [1, 1, 3], state: "minecraft:air"},
-        {pos: [1, 1, 4], state: "minecraft:air"},
-        {pos: [2, 1, 0], state: "minecraft:air"},
-        {pos: [2, 1, 1], state: "minecraft:air"},
-        {pos: [2, 1, 2], state: "minecraft:air"},
-        {pos: [2, 1, 3], state: "minecraft:air"},
         {pos: [2, 1, 4], state: "minecraft:polished_andesite"},
-        {pos: [3, 1, 0], state: "minecraft:air"},
-        {pos: [3, 1, 1], state: "minecraft:air"},
-        {pos: [3, 1, 2], state: "minecraft:air"},
-        {pos: [3, 1, 3], state: "minecraft:air"},
-        {pos: [3, 1, 4], state: "minecraft:air"},
-        {pos: [4, 1, 0], state: "minecraft:air"},
-        {pos: [4, 1, 1], state: "minecraft:air"},
-        {pos: [4, 1, 2], state: "minecraft:air"},
-        {pos: [4, 1, 3], state: "minecraft:air"},
-        {pos: [4, 1, 4], state: "minecraft:air"},
-        {pos: [0, 2, 0], state: "minecraft:air"},
-        {pos: [0, 2, 1], state: "minecraft:air"},
-        {pos: [0, 2, 2], state: "minecraft:air"},
-        {pos: [0, 2, 3], state: "minecraft:air"},
-        {pos: [0, 2, 4], state: "minecraft:air"},
-        {pos: [1, 2, 0], state: "minecraft:air"},
-        {pos: [1, 2, 1], state: "minecraft:air"},
-        {pos: [1, 2, 2], state: "minecraft:air"},
-        {pos: [1, 2, 3], state: "minecraft:air"},
-        {pos: [1, 2, 4], state: "minecraft:air"},
-        {pos: [2, 2, 0], state: "minecraft:air"},
-        {pos: [2, 2, 1], state: "minecraft:air"},
-        {pos: [2, 2, 2], state: "minecraft:air"},
-        {pos: [2, 2, 3], state: "minecraft:air"},
-        {pos: [2, 2, 4], state: "minecraft:polished_andesite"},
-        {pos: [3, 2, 0], state: "minecraft:air"},
-        {pos: [3, 2, 1], state: "minecraft:air"},
-        {pos: [3, 2, 2], state: "minecraft:air"},
-        {pos: [3, 2, 3], state: "minecraft:air"},
-        {pos: [3, 2, 4], state: "minecraft:air"},
-        {pos: [4, 2, 0], state: "minecraft:air"},
-        {pos: [4, 2, 1], state: "minecraft:air"},
-        {pos: [4, 2, 2], state: "minecraft:air"},
-        {pos: [4, 2, 3], state: "minecraft:air"},
-        {pos: [4, 2, 4], state: "minecraft:air"},
-        {pos: [0, 3, 0], state: "minecraft:air"},
-        {pos: [0, 3, 1], state: "minecraft:air"},
-        {pos: [0, 3, 2], state: "minecraft:air"},
-        {pos: [0, 3, 3], state: "minecraft:air"},
-        {pos: [0, 3, 4], state: "minecraft:air"},
-        {pos: [1, 3, 0], state: "minecraft:air"},
-        {pos: [1, 3, 1], state: "minecraft:air"},
-        {pos: [1, 3, 2], state: "minecraft:air"},
-        {pos: [1, 3, 3], state: "minecraft:air"},
-        {pos: [1, 3, 4], state: "minecraft:air"},
-        {pos: [2, 3, 0], state: "minecraft:air"},
-        {pos: [2, 3, 1], state: "minecraft:air"},
-        {pos: [2, 3, 2], state: "minecraft:air"},
-        {pos: [2, 3, 3], state: "minecraft:air"},
-        {pos: [2, 3, 4], state: "minecraft:air"},
-        {pos: [3, 3, 0], state: "minecraft:air"},
-        {pos: [3, 3, 1], state: "minecraft:air"},
-        {pos: [3, 3, 2], state: "minecraft:air"},
-        {pos: [3, 3, 3], state: "minecraft:air"},
-        {pos: [3, 3, 4], state: "minecraft:air"},
-        {pos: [4, 3, 0], state: "minecraft:air"},
-        {pos: [4, 3, 1], state: "minecraft:air"},
-        {pos: [4, 3, 2], state: "minecraft:air"},
-        {pos: [4, 3, 3], state: "minecraft:air"},
-        {pos: [4, 3, 4], state: "minecraft:air"},
-        {pos: [0, 4, 0], state: "minecraft:air"},
-        {pos: [0, 4, 1], state: "minecraft:air"},
-        {pos: [0, 4, 2], state: "minecraft:air"},
-        {pos: [0, 4, 3], state: "minecraft:air"},
-        {pos: [0, 4, 4], state: "minecraft:air"},
-        {pos: [1, 4, 0], state: "minecraft:air"},
-        {pos: [1, 4, 1], state: "minecraft:air"},
-        {pos: [1, 4, 2], state: "minecraft:air"},
-        {pos: [1, 4, 3], state: "minecraft:air"},
-        {pos: [1, 4, 4], state: "minecraft:air"},
-        {pos: [2, 4, 0], state: "minecraft:air"},
-        {pos: [2, 4, 1], state: "minecraft:air"},
-        {pos: [2, 4, 2], state: "minecraft:air"},
-        {pos: [2, 4, 3], state: "minecraft:air"},
-        {pos: [2, 4, 4], state: "minecraft:air"},
-        {pos: [3, 4, 0], state: "minecraft:air"},
-        {pos: [3, 4, 1], state: "minecraft:air"},
-        {pos: [3, 4, 2], state: "minecraft:air"},
-        {pos: [3, 4, 3], state: "minecraft:air"},
-        {pos: [3, 4, 4], state: "minecraft:air"},
-        {pos: [4, 4, 0], state: "minecraft:air"},
-        {pos: [4, 4, 1], state: "minecraft:air"},
-        {pos: [4, 4, 2], state: "minecraft:air"},
-        {pos: [4, 4, 3], state: "minecraft:air"},
-        {pos: [4, 4, 4], state: "minecraft:air"}
+        {pos: [2, 2, 4], state: "minecraft:polished_andesite"}
     ],
     entities: [
         {blockPos: [2, 1, 2], pos: [2.583196949396921d, 1.0d, 2.608974919959593d], nbt: {AbsorptionAmount: 0.0f, Air: 300s, ArmorItems: [{}, {}, {}, {}], Attributes: [{Base: 0.699999988079071d, Name: "minecraft:generic.movement_speed"}], Brain: {memories: {}}, CustomName: '{"text":"printouttest.in_frame_at_night"}', DeathTime: 0s, DisabledSlots: 0, FallDistance: 0.0f, FallFlying: 0b, Fire: -1s, HandItems: [{}, {}], Health: 20.0f, HurtByTimestamp: 0, HurtTime: 0s, Invisible: 1b, Invulnerable: 0b, Marker: 1b, Motion: [0.0d, 0.0d, 0.0d], NoBasePlate: 0b, OnGround: 0b, PortalCooldown: 0, Pos: [221.58319694939692d, -58.0d, 92.60897491995959d], Pose: {}, Rotation: [1.3504658f, 6.7031174f], ShowArms: 0b, Small: 0b, UUID: [I; 1854159985, -991539606, -1317309541, 1483112386], id: "minecraft:armor_stand"}},
         {blockPos: [2, 2, 3], pos: [2.5d, 2.5d, 3.96875d], nbt: {Air: 300s, Facing: 2b, FallDistance: 0.0f, Fire: -1s, Fixed: 0b, Invisible: 0b, Invulnerable: 0b, Item: {Count: 1b, id: "computercraft:printed_page", tag: {Color0: "eeeeeeeeeeeeeeeeeeeeeeeee", Color1: "eeeeeeeeeeeeeeeeeeeeeeeee", Color10: "eeeeeeeeeeeeeeeeeeeeeeeee", Color11: "eeeeeeeeeeeeeeeeeeeeeeeee", Color12: "eeeeeeeeeeeeeeeeeeeeeeeee", Color13: "eeeeeeeeeeeeeeeeeeeeeeeee", Color14: "eeeeeeeeeeeeeeeeeeeeeeeee", Color15: "eeeeeeeeeeeeeeeeeeeeeeeee", Color16: "eeeeeeeeeeeeeeeeeeeeeeeee", Color17: "eeeeeeeeeeeeeeeeeeeeeeeee", Color18: "eeeeeeeeeeeeeeeeeeeeeeeee", Color19: "eeeeeeeeeeeeeeeeeeeeeeeee", Color2: "eeeeeeeeeeeeeeeeeeeeeeeee", Color20: "eeeeeeeeeeeeeeeeeeeeeeeee", Color3: "eeeeeeeeeeeeeeeeeeeeeeeee", Color4: "eeeeeeeeeeeeeeeeeeeeeeeee", Color5: "eeeeeeeeeeeeeeeeeeeeeeeee", Color6: "eeeeeeeeeeeeeeeeeeeeeeeee", Color7: "eeeeeeeeeeeeeeeeeeeeeeeee", Color8: "eeeeeeeeeeeeeeeeeeeeeeeee", Color9: "eeeeeeeeeeeeeeeeeeeeeeeee", Pages: 1, Text0: "If you're reading this,  ", Text1: "the test failed.         ", Text10: "                         ", Text11: "                         ", Text12: "                         ", Text13: "                         ", Text14: "                         ", Text15: "                         ", Text16: "                         ", Text17: "                         ", Text18: "                         ", Text19: "                         ", Text2: "                         ", Text20: "                         ", Text3: "                         ", Text4: "                         ", Text5: "                         ", Text6: "                         ", Text7: "                         ", Text8: "                         ", Text9: "                         ", Title: "a.lua"}}, ItemDropChance: 1.0f, ItemRotation: 0b, Motion: [0.0d, 0.0d, 0.0d], OnGround: 0b, PortalCooldown: 0, Pos: [221.5d, -56.5d, 93.96875d], Rotation: [-540.0f, 0.0f], TileX: 221, TileY: -57, TileZ: 93, UUID: [I; 1972443954, 193152445, -1823446000, -1684171214], id: "minecraft:item_frame"}}
     ],
     palette: [
-        "minecraft:polished_andesite",
-        "minecraft:air"
+        "minecraft:polished_andesite"
     ]
 }

projects/common/src/testMod/resources/data/cctest/structures/relay_test.no_through_signal.snbt

@@ -27,113 +27,17 @@
         {pos: [4, 0, 2], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 3], state: "minecraft:polished_andesite"},
         {pos: [4, 0, 4], state: "minecraft:polished_andesite"},
-        {pos: [0, 1, 0], state: "minecraft:air"},
-        {pos: [0, 1, 1], state: "minecraft:air"},
-        {pos: [0, 1, 2], state: "minecraft:air"},
-        {pos: [0, 1, 3], state: "minecraft:air"},
-        {pos: [0, 1, 4], state: "minecraft:air"},
-        {pos: [1, 1, 0], state: "minecraft:air"},
-        {pos: [1, 1, 1], state: "minecraft:air"},
-        {pos: [1, 1, 2], state: "minecraft:air"},
-        {pos: [1, 1, 3], state: "minecraft:air"},
-        {pos: [1, 1, 4], state: "minecraft:air"},
         {pos: [2, 1, 0], state: "minecraft:lever{face:floor,facing:south,powered:false}"},
         {pos: [2, 1, 1], state: "minecraft:repeater{delay:1,facing:north,locked:false,powered:false}"},
         {pos: [2, 1, 2], state: "computercraft:redstone_relay{facing:north}"},
         {pos: [2, 1, 3], state: "minecraft:redstone_wire{east:none,north:side,power:0,south:none,west:none}"},
-        {pos: [2, 1, 4], state: "minecraft:redstone_lamp{lit:false}"},
-        {pos: [3, 1, 0], state: "minecraft:air"},
-        {pos: [3, 1, 1], state: "minecraft:air"},
-        {pos: [3, 1, 2], state: "minecraft:air"},
-        {pos: [3, 1, 3], state: "minecraft:air"},
-        {pos: [3, 1, 4], state: "minecraft:air"},
-        {pos: [4, 1, 0], state: "minecraft:air"},
-        {pos: [4, 1, 1], state: "minecraft:air"},
-        {pos: [4, 1, 2], state: "minecraft:air"},
-        {pos: [4, 1, 3], state: "minecraft:air"},
-        {pos: [4, 1, 4], state: "minecraft:air"},
-        {pos: [0, 2, 0], state: "minecraft:air"},
-        {pos: [0, 2, 1], state: "minecraft:air"},
-        {pos: [0, 2, 2], state: "minecraft:air"},
-        {pos: [0, 2, 3], state: "minecraft:air"},
-        {pos: [0, 2, 4], state: "minecraft:air"},
-        {pos: [1, 2, 0], state: "minecraft:air"},
-        {pos: [1, 2, 1], state: "minecraft:air"},
-        {pos: [1, 2, 2], state: "minecraft:air"},
-        {pos: [1, 2, 3], state: "minecraft:air"},
-        {pos: [1, 2, 4], state: "minecraft:air"},
-        {pos: [2, 2, 0], state: "minecraft:air"},
-        {pos: [2, 2, 1], state: "minecraft:air"},
-        {pos: [2, 2, 2], state: "minecraft:air"},
-        {pos: [2, 2, 3], state: "minecraft:air"},
-        {pos: [2, 2, 4], state: "minecraft:air"},
-        {pos: [3, 2, 0], state: "minecraft:air"},
-        {pos: [3, 2, 1], state: "minecraft:air"},
-        {pos: [3, 2, 2], state: "minecraft:air"},
-        {pos: [3, 2, 3], state: "minecraft:air"},
-        {pos: [3, 2, 4], state: "minecraft:air"},
-        {pos: [4, 2, 0], state: "minecraft:air"},
-        {pos: [4, 2, 1], state: "minecraft:air"},
-        {pos: [4, 2, 2], state: "minecraft:air"},
-        {pos: [4, 2, 3], state: "minecraft:air"},
-        {pos: [4, 2, 4], state: "minecraft:air"},
-        {pos: [0, 3, 0], state: "minecraft:air"},
-        {pos: [0, 3, 1], state: "minecraft:air"},
-        {pos: [0, 3, 2], state: "minecraft:air"},
-        {pos: [0, 3, 3], state: "minecraft:air"},
-        {pos: [0, 3, 4], state: "minecraft:air"},
-        {pos: [1, 3, 0], state: "minecraft:air"},
-        {pos: [1, 3, 1], state: "minecraft:air"},
-        {pos: [1, 3, 2], state: "minecraft:air"},
-        {pos: [1, 3, 3], state: "minecraft:air"},
-        {pos: [1, 3, 4], state: "minecraft:air"},
-        {pos: [2, 3, 0], state: "minecraft:air"},
-        {pos: [2, 3, 1], state: "minecraft:air"},
-        {pos: [2, 3, 2], state: "minecraft:air"},
-        {pos: [2, 3, 3], state: "minecraft:air"},
-        {pos: [2, 3, 4], state: "minecraft:air"},
-        {pos: [3, 3, 0], state: "minecraft:air"},
-        {pos: [3, 3, 1], state: "minecraft:air"},
-        {pos: [3, 3, 2], state: "minecraft:air"},
-        {pos: [3, 3, 3], state: "minecraft:air"},
-        {pos: [3, 3, 4], state: "minecraft:air"},
-        {pos: [4, 3, 0], state: "minecraft:air"},
-        {pos: [4, 3, 1], state: "minecraft:air"},
-        {pos: [4, 3, 2], state: "minecraft:air"},
-        {pos: [4, 3, 3], state: "minecraft:air"},
-        {pos: [4, 3, 4], state: "minecraft:air"},
-        {pos: [0, 4, 0], state: "minecraft:air"},
-        {pos: [0, 4, 1], state: "minecraft:air"},
-        {pos: [0, 4, 2], state: "minecraft:air"},
-        {pos: [0, 4, 3], state: "minecraft:air"},
-        {pos: [0, 4, 4], state: "minecraft:air"},
-        {pos: [1, 4, 0], state: "minecraft:air"},
-        {pos: [1, 4, 1], state: "minecraft:air"},
-        {pos: [1, 4, 2], state: "minecraft:air"},
-        {pos: [1, 4, 3], state: "minecraft:air"},
-        {pos: [1, 4, 4], state: "minecraft:air"},
-        {pos: [2, 4, 0], state: "minecraft:air"},
-        {pos: [2, 4, 1], state: "minecraft:air"},
-        {pos: [2, 4, 2], state: "minecraft:air"},
-        {pos: [2, 4, 3], state: "minecraft:air"},
-        {pos: [2, 4, 4], state: "minecraft:air"},
-        {pos: [3, 4, 0], state: "minecraft:air"},
-        {pos: [3, 4, 1], state: "minecraft:air"},
-        {pos: [3, 4, 2], state: "minecraft:air"},
-        {pos: [3, 4, 3], state: "minecraft:air"},
-        {pos: [3, 4, 4], state: "minecraft:air"},
-        {pos: [4, 4, 0], state: "minecraft:air"},
-        {pos: [4, 4, 1], state: "minecraft:air"},
-        {pos: [4, 4, 2], state: "minecraft:air"},
-        {pos: [4, 4, 3], state: "minecraft:air"},
-        {pos: [4, 4, 4], state: "minecraft:air"}
+        {pos: [2, 1, 4], state: "minecraft:redstone_lamp{lit:false}"}
     ],
     entities: [],
     palette: [
         "minecraft:polished_andesite",
-        "minecraft:redstone_lamp{lit:false}",
         "computercraft:redstone_relay{facing:north}",
-        "minecraft:air",
+        "minecraft:redstone_lamp{lit:false}",
         "minecraft:lever{face:floor,facing:south,powered:false}",
         "minecraft:repeater{delay:1,facing:north,locked:false,powered:false}",
         "minecraft:redstone_wire{east:none,north:side,power:0,south:none,west:none}"