Switch to vanilla's stillValid implementation

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

@@ -5,9 +5,9 @@
 package dan200.computercraft.shared.common;
 
 import dan200.computercraft.shared.container.BasicContainer;
-import dan200.computercraft.shared.util.BlockEntityHelpers;
 import net.minecraft.core.BlockPos;
 import net.minecraft.network.chat.Component;
+import net.minecraft.world.Container;
 import net.minecraft.world.entity.player.Player;
 import net.minecraft.world.level.block.entity.BaseContainerBlockEntity;
 import net.minecraft.world.level.block.entity.BlockEntity;
@@ -29,6 +29,6 @@ public abstract class AbstractContainerBlockEntity extends BaseContainerBlockEnt
 
     @Override
     public boolean stillValid(Player player) {
-        return BlockEntityHelpers.isUsable(this, player, BlockEntityHelpers.DEFAULT_INTERACT_RANGE);
+        return Container.stillValidBlockEntity(this, player);
     }
 }

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

@@ -24,6 +24,7 @@ import net.minecraft.core.Direction;
 import net.minecraft.nbt.CompoundTag;
 import net.minecraft.network.chat.Component;
 import net.minecraft.network.protocol.game.ClientboundBlockEntityDataPacket;
+import net.minecraft.world.Container;
 import net.minecraft.world.LockCode;
 import net.minecraft.world.MenuProvider;
 import net.minecraft.world.Nameable;
@@ -75,13 +76,13 @@ public abstract class AbstractComputerBlockEntity extends BlockEntity implements
         unload();
     }
 
-    protected double getInteractRange() {
-        return BlockEntityHelpers.DEFAULT_INTERACT_RANGE;
+    protected int getInteractRange() {
+        return Container.DEFAULT_DISTANCE_LIMIT;
     }
 
     public boolean isUsable(Player player) {
         return BaseContainerBlockEntity.canUnlock(player, lockCode, getDisplayName())
-            && BlockEntityHelpers.isUsable(this, player, getInteractRange());
+            && Container.stillValidBlockEntity(this, player, getInteractRange());
     }
 
     protected void serverTick() {

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

@@ -26,6 +26,7 @@ import net.minecraft.core.NonNullList;
 import net.minecraft.nbt.CompoundTag;
 import net.minecraft.resources.ResourceLocation;
 import net.minecraft.server.level.ServerLevel;
+import net.minecraft.world.Container;
 import net.minecraft.world.ContainerHelper;
 import net.minecraft.world.entity.player.Inventory;
 import net.minecraft.world.entity.player.Player;
@@ -88,8 +89,8 @@ public class TurtleBlockEntity extends AbstractComputerBlockEntity implements Ba
     }
 
     @Override
-    protected double getInteractRange() {
-        return 12.0;
+    protected int getInteractRange() {
+        return Container.DEFAULT_DISTANCE_LIMIT + 4;
     }
 
     @Override

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

@@ -4,24 +4,14 @@
 
 package dan200.computercraft.shared.util;
 
-import dan200.computercraft.shared.platform.PlatformHelper;
-import net.minecraft.world.entity.player.Player;
 import net.minecraft.world.level.block.Block;
 import net.minecraft.world.level.block.entity.BlockEntity;
 import net.minecraft.world.level.block.entity.BlockEntityTicker;
 import net.minecraft.world.level.block.entity.BlockEntityType;
-import net.minecraft.world.phys.Vec3;
 
 import javax.annotation.Nullable;
 
 public final class BlockEntityHelpers {
-    /**
-     * The maximum limit a player can be away from a block to still have its UI open.
-     *
-     * @see #isUsable(BlockEntity, Player, double)
-     */
-    public static final double DEFAULT_INTERACT_RANGE = 8.0;
-
     private BlockEntityHelpers() {
     }
 
@@ -33,27 +23,6 @@ public final class BlockEntityHelpers {
         return actualType == expectedType ? (BlockEntityTicker<A>) ticker : null;
     }
 
-    /**
-     * Determine if a block entity is "usable" by a player.
-     *
-     * @param blockEntity The current block entity.
-     * @param player      The player who is trying to interact with the block.
-     * @param range       The default distance the player can be away. This typically defaults to {@link #DEFAULT_INTERACT_RANGE},
-     *                    but a custom value may be used. If {@link PlatformHelper#getReachDistance(Player)} is larger,
-     *                    that will be used instead.
-     * @return Whether this block entity is usable.
-     */
-    public static boolean isUsable(BlockEntity blockEntity, Player player, double range) {
-        var level = blockEntity.getLevel();
-        var pos = blockEntity.getBlockPos();
-
-        range = Math.max(range, PlatformHelper.get().getReachDistance(player));
-
-        return player.isAlive() && player.getCommandSenderWorld() == level &&
-            !blockEntity.isRemoved() && level.getBlockEntity(pos) == blockEntity &&
-            player.distanceToSqr(Vec3.atCenterOf(pos)) <= range * range;
-    }
-
     /**
      * Update a block entity, marking it as changed and propagating changes to the client.
      *