Merge branch 'mc-1.16.x' into mc-1.18.x

src/main/java/dan200/computercraft/client/render/ItemPrintoutRenderer.java

@@ -19,9 +19,9 @@ import net.minecraftforge.client.event.RenderItemInFrameEvent;
 import net.minecraftforge.eventbus.api.SubscribeEvent;
 import net.minecraftforge.fml.common.Mod;
 
+import static dan200.computercraft.client.render.PrintoutRenderer.*;
 import static dan200.computercraft.client.render.text.FixedWidthFontRenderer.FONT_HEIGHT;
 import static dan200.computercraft.client.render.text.FixedWidthFontRenderer.FONT_WIDTH;
-import static dan200.computercraft.client.render.PrintoutRenderer.*;
 import static dan200.computercraft.shared.media.items.ItemPrintout.LINES_PER_PAGE;
 import static dan200.computercraft.shared.media.items.ItemPrintout.LINE_MAX_LENGTH;
 
@@ -88,7 +88,7 @@ public final class ItemPrintoutRenderer extends ItemMapLikeRenderer
         double height = LINES_PER_PAGE * FONT_HEIGHT + Y_TEXT_MARGIN * 2;
 
         // Non-books will be left aligned
-        if( !book ) width += offsetAt( pages );
+        if( !book ) width += offsetAt( pages - 1 );
 
         double visualWidth = width, visualHeight = height;
 

src/main/java/dan200/computercraft/client/render/TurtlePlayerRenderer.java

@@ -1,35 +0,0 @@
-/*
- * This file is part of ComputerCraft - http://www.computercraft.info
- * Copyright Daniel Ratcliffe, 2011-2022. Do not distribute without permission.
- * Send enquiries to dratcliffe@gmail.com
- */
-package dan200.computercraft.client.render;
-
-import com.mojang.blaze3d.vertex.PoseStack;
-import dan200.computercraft.shared.turtle.core.TurtlePlayer;
-import net.minecraft.client.renderer.MultiBufferSource;
-import net.minecraft.client.renderer.entity.EntityRenderer;
-import net.minecraft.client.renderer.entity.EntityRendererProvider;
-import net.minecraft.resources.ResourceLocation;
-
-import javax.annotation.Nonnull;
-
-public class TurtlePlayerRenderer extends EntityRenderer<TurtlePlayer>
-{
-    public TurtlePlayerRenderer( EntityRendererProvider.Context renderManager )
-    {
-        super( renderManager );
-    }
-
-    @Nonnull
-    @Override
-    public ResourceLocation getTextureLocation( @Nonnull TurtlePlayer entity )
-    {
-        return ComputerBorderRenderer.BACKGROUND_NORMAL;
-    }
-
-    @Override
-    public void render( @Nonnull TurtlePlayer entityIn, float entityYaw, float partialTicks, @Nonnull PoseStack transform, @Nonnull MultiBufferSource buffer, int packedLightIn )
-    {
-    }
-}

src/main/java/dan200/computercraft/client/sound/SpeakerInstance.java

@@ -6,10 +6,10 @@
 package dan200.computercraft.client.sound;
 
 import dan200.computercraft.ComputerCraft;
+import dan200.computercraft.shared.peripheral.speaker.SpeakerPosition;
 import io.netty.buffer.ByteBuf;
 import net.minecraft.client.Minecraft;
 import net.minecraft.resources.ResourceLocation;
-import net.minecraft.world.phys.Vec3;
 
 /**
  * An instance of a speaker, which is either playing a {@link DfpwmStream} stream or a normal sound.
@@ -43,7 +43,7 @@ public class SpeakerInstance
         }
     }
 
-    public void playAudio( Vec3 position, float volume )
+    public void playAudio( SpeakerPosition position, float volume )
     {
         var soundManager = Minecraft.getInstance().getSoundManager();
 
@@ -62,7 +62,7 @@ public class SpeakerInstance
         }
     }
 
-    public void playSound( Vec3 position, ResourceLocation location, float volume, float pitch )
+    public void playSound( SpeakerPosition position, ResourceLocation location, float volume, float pitch )
     {
         var soundManager = Minecraft.getInstance().getSoundManager();
         currentStream = null;
@@ -77,7 +77,7 @@ public class SpeakerInstance
         soundManager.play( sound );
     }
 
-    void setPosition( Vec3 position )
+    void setPosition( SpeakerPosition position )
     {
         if( sound != null ) sound.setPosition( position );
     }

src/main/java/dan200/computercraft/client/sound/SpeakerManager.java

@@ -5,7 +5,7 @@
  */
 package dan200.computercraft.client.sound;
 
-import net.minecraft.world.phys.Vec3;
+import dan200.computercraft.shared.peripheral.speaker.SpeakerPosition;
 import net.minecraftforge.api.distmarker.Dist;
 import net.minecraftforge.client.event.sound.PlayStreamingSourceEvent;
 import net.minecraftforge.eventbus.api.SubscribeEvent;
@@ -44,7 +44,7 @@ public class SpeakerManager
         if( sound != null ) sound.stop();
     }
 
-    public static void moveSound( UUID source, Vec3 position )
+    public static void moveSound( UUID source, SpeakerPosition position )
     {
         SpeakerInstance sound = sounds.get( source );
         if( sound != null ) sound.setPosition( position );

src/main/java/dan200/computercraft/client/sound/SpeakerSound.java

@@ -6,6 +6,7 @@
 package dan200.computercraft.client.sound;
 
 import com.mojang.blaze3d.audio.Channel;
+import dan200.computercraft.shared.peripheral.speaker.SpeakerPosition;
 import net.minecraft.client.resources.sounds.AbstractSoundInstance;
 import net.minecraft.client.resources.sounds.Sound;
 import net.minecraft.client.resources.sounds.TickableSoundInstance;
@@ -13,7 +14,7 @@ import net.minecraft.client.sounds.AudioStream;
 import net.minecraft.client.sounds.SoundBufferLibrary;
 import net.minecraft.resources.ResourceLocation;
 import net.minecraft.sounds.SoundSource;
-import net.minecraft.world.phys.Vec3;
+import net.minecraft.world.entity.Entity;
 
 import javax.annotation.Nonnull;
 import java.util.concurrent.CompletableFuture;
@@ -25,7 +26,11 @@ public class SpeakerSound extends AbstractSoundInstance implements TickableSound
     Executor executor;
     DfpwmStream stream;
 
-    SpeakerSound( ResourceLocation sound, DfpwmStream stream, Vec3 position, float volume, float pitch )
+    private Entity entity;
+
+    private boolean stopped = false;
+
+    SpeakerSound( ResourceLocation sound, DfpwmStream stream, SpeakerPosition position, float volume, float pitch )
     {
         super( sound, SoundSource.RECORDS );
         setPosition( position );
@@ -35,22 +40,35 @@ public class SpeakerSound extends AbstractSoundInstance implements TickableSound
         attenuation = Attenuation.LINEAR;
     }
 
-    void setPosition( Vec3 position )
+    void setPosition( SpeakerPosition position )
     {
-        x = (float) position.x();
+        x = position.position().x;
-        y = (float) position.y();
+        y = position.position().y;
-        z = (float) position.z();
+        z = position.position().z;
+        entity = position.entity();
     }
 
     @Override
     public boolean isStopped()
     {
-        return false;
+        return stopped;
     }
 
     @Override
     public void tick()
     {
+        if( entity == null ) return;
+        if( !entity.isAlive() )
+        {
+            stopped = true;
+            looping = false;
+        }
+        else
+        {
+            x = entity.getX();
+            y = entity.getY();
+            z = entity.getZ();
+        }
     }
 
     @Nonnull

src/main/java/dan200/computercraft/shared/network/client/SpeakerAudioClientMessage.java

@@ -7,8 +7,8 @@ package dan200.computercraft.shared.network.client;
 
 import dan200.computercraft.client.sound.SpeakerManager;
 import dan200.computercraft.shared.network.NetworkMessage;
+import dan200.computercraft.shared.peripheral.speaker.SpeakerPosition;
 import net.minecraft.network.FriendlyByteBuf;
-import net.minecraft.world.phys.Vec3;
 import net.minecraftforge.api.distmarker.Dist;
 import net.minecraftforge.api.distmarker.OnlyIn;
 import net.minecraftforge.network.NetworkEvent;
@@ -27,14 +27,14 @@ import java.util.UUID;
 public class SpeakerAudioClientMessage implements NetworkMessage
 {
     private final UUID source;
-    private final Vec3 pos;
+    private final SpeakerPosition.Message pos;
     private final ByteBuffer content;
     private final float volume;
 
-    public SpeakerAudioClientMessage( UUID source, Vec3 pos, float volume, ByteBuffer content )
+    public SpeakerAudioClientMessage( UUID source, SpeakerPosition pos, float volume, ByteBuffer content )
     {
         this.source = source;
-        this.pos = pos;
+        this.pos = pos.asMessage();
         this.content = content;
         this.volume = volume;
     }
@@ -42,7 +42,7 @@ public class SpeakerAudioClientMessage implements NetworkMessage
     public SpeakerAudioClientMessage( FriendlyByteBuf buf )
     {
         source = buf.readUUID();
-        pos = new Vec3( buf.readDouble(), buf.readDouble(), buf.readDouble() );
+        pos = SpeakerPosition.Message.read( buf );
         volume = buf.readFloat();
 
         SpeakerManager.getSound( source ).pushAudio( buf );
@@ -53,9 +53,7 @@ public class SpeakerAudioClientMessage implements NetworkMessage
     public void toBytes( @Nonnull FriendlyByteBuf buf )
     {
         buf.writeUUID( source );
-        buf.writeDouble( pos.x() );
+        pos.write( buf );
-        buf.writeDouble( pos.y() );
-        buf.writeDouble( pos.z() );
         buf.writeFloat( volume );
         buf.writeBytes( content.duplicate() );
     }
@@ -64,6 +62,6 @@ public class SpeakerAudioClientMessage implements NetworkMessage
     @OnlyIn( Dist.CLIENT )
     public void handle( NetworkEvent.Context context )
     {
-        SpeakerManager.getSound( source ).playAudio( pos, volume );
+        SpeakerManager.getSound( source ).playAudio( pos.reify(), volume );
     }
 }

src/main/java/dan200/computercraft/shared/network/client/SpeakerMoveClientMessage.java

@@ -7,8 +7,8 @@ package dan200.computercraft.shared.network.client;
 
 import dan200.computercraft.client.sound.SpeakerManager;
 import dan200.computercraft.shared.network.NetworkMessage;
+import dan200.computercraft.shared.peripheral.speaker.SpeakerPosition;
 import net.minecraft.network.FriendlyByteBuf;
-import net.minecraft.world.phys.Vec3;
 import net.minecraftforge.api.distmarker.Dist;
 import net.minecraftforge.api.distmarker.OnlyIn;
 import net.minecraftforge.network.NetworkEvent;
@@ -26,33 +26,31 @@ import java.util.UUID;
 public class SpeakerMoveClientMessage implements NetworkMessage
 {
     private final UUID source;
-    private final Vec3 pos;
+    private final SpeakerPosition.Message pos;
 
-    public SpeakerMoveClientMessage( UUID source, Vec3 pos )
+    public SpeakerMoveClientMessage( UUID source, SpeakerPosition pos )
     {
         this.source = source;
-        this.pos = pos;
+        this.pos = pos.asMessage();
     }
 
     public SpeakerMoveClientMessage( FriendlyByteBuf buf )
     {
         source = buf.readUUID();
-        pos = new Vec3( buf.readDouble(), buf.readDouble(), buf.readDouble() );
+        pos = SpeakerPosition.Message.read( buf );
     }
 
     @Override
     public void toBytes( @Nonnull FriendlyByteBuf buf )
     {
         buf.writeUUID( source );
-        buf.writeDouble( pos.x() );
+        pos.write( buf );
-        buf.writeDouble( pos.y() );
-        buf.writeDouble( pos.z() );
     }
 
     @Override
     @OnlyIn( Dist.CLIENT )
     public void handle( NetworkEvent.Context context )
     {
-        SpeakerManager.moveSound( source, pos );
+        SpeakerManager.moveSound( source, pos.reify() );
     }
 }

src/main/java/dan200/computercraft/shared/network/client/SpeakerPlayClientMessage.java

@@ -7,9 +7,9 @@ package dan200.computercraft.shared.network.client;
 
 import dan200.computercraft.client.sound.SpeakerManager;
 import dan200.computercraft.shared.network.NetworkMessage;
+import dan200.computercraft.shared.peripheral.speaker.SpeakerPosition;
 import net.minecraft.network.FriendlyByteBuf;
 import net.minecraft.resources.ResourceLocation;
-import net.minecraft.world.phys.Vec3;
 import net.minecraftforge.api.distmarker.Dist;
 import net.minecraftforge.api.distmarker.OnlyIn;
 import net.minecraftforge.network.NetworkEvent;
@@ -27,15 +27,15 @@ import java.util.UUID;
 public class SpeakerPlayClientMessage implements NetworkMessage
 {
     private final UUID source;
-    private final Vec3 pos;
+    private final SpeakerPosition.Message pos;
     private final ResourceLocation sound;
     private final float volume;
     private final float pitch;
 
-    public SpeakerPlayClientMessage( UUID source, Vec3 pos, ResourceLocation event, float volume, float pitch )
+    public SpeakerPlayClientMessage( UUID source, SpeakerPosition pos, ResourceLocation event, float volume, float pitch )
     {
         this.source = source;
-        this.pos = pos;
+        this.pos = pos.asMessage();
         sound = event;
         this.volume = volume;
         this.pitch = pitch;
@@ -44,7 +44,7 @@ public class SpeakerPlayClientMessage implements NetworkMessage
     public SpeakerPlayClientMessage( FriendlyByteBuf buf )
     {
         source = buf.readUUID();
-        pos = new Vec3( buf.readDouble(), buf.readDouble(), buf.readDouble() );
+        pos = SpeakerPosition.Message.read( buf );
         sound = buf.readResourceLocation();
         volume = buf.readFloat();
         pitch = buf.readFloat();
@@ -54,9 +54,7 @@ public class SpeakerPlayClientMessage implements NetworkMessage
     public void toBytes( @Nonnull FriendlyByteBuf buf )
     {
         buf.writeUUID( source );
-        buf.writeDouble( pos.x() );
+        pos.write( buf );
-        buf.writeDouble( pos.y() );
-        buf.writeDouble( pos.z() );
         buf.writeResourceLocation( sound );
         buf.writeFloat( volume );
         buf.writeFloat( pitch );
@@ -66,6 +64,6 @@ public class SpeakerPlayClientMessage implements NetworkMessage
     @OnlyIn( Dist.CLIENT )
     public void handle( NetworkEvent.Context context )
     {
-        SpeakerManager.getSound( source ).playSound( pos, sound, volume, pitch );
+        SpeakerManager.getSound( source ).playSound( pos.reify(), sound, volume, pitch );
     }
 }

src/main/java/dan200/computercraft/shared/peripheral/speaker/SpeakerPeripheral.java

@@ -29,7 +29,6 @@ import net.minecraft.world.level.block.state.properties.NoteBlockInstrument;
 import net.minecraft.world.phys.Vec3;
 
 import javax.annotation.Nonnull;
-import javax.annotation.Nullable;
 import java.util.*;
 
 import static dan200.computercraft.api.lua.LuaValues.checkFinite;
@@ -57,7 +56,7 @@ public abstract class SpeakerPeripheral implements IPeripheral
 
     private long clock = 0;
     private long lastPositionTime;
-    private Vec3 lastPosition;
+    private SpeakerPosition lastPosition;
 
     private long lastPlayTime;
 
@@ -72,8 +71,9 @@ public abstract class SpeakerPeripheral implements IPeripheral
     {
         clock++;
 
-        Vec3 pos = getPosition();
+        SpeakerPosition position = getPosition();
-        Level level = getLevel();
+        Level level = position.level();
+        Vec3 pos = position.position();
         if( level == null ) return;
         MinecraftServer server = level.getServer();
 
@@ -125,20 +125,20 @@ public abstract class SpeakerPeripheral implements IPeripheral
         {
             lastPlayTime = clock;
             NetworkHandler.sendToAllAround(
-                new SpeakerPlayClientMessage( getSource(), pos, sound.location, sound.volume, sound.pitch ),
+                new SpeakerPlayClientMessage( getSource(), position, sound.location, sound.volume, sound.pitch ),
                 level, pos, sound.volume * 16
             );
-            syncedPosition( pos );
+            syncedPosition( position );
         }
         else if( dfpwmState != null && dfpwmState.shouldSendPending( now ) )
         {
             // If clients need to receive another batch of audio, send it and then notify computers our internal buffer is
             // free again.
             NetworkHandler.sendToAllTracking(
-                new SpeakerAudioClientMessage( getSource(), pos, dfpwmState.getVolume(), dfpwmState.pullPending( now ) ),
+                new SpeakerAudioClientMessage( getSource(), position, dfpwmState.getVolume(), dfpwmState.pullPending( now ) ),
-                getLevel().getChunkAt( new BlockPos( pos ) )
+                level.getChunkAt( new BlockPos( pos ) )
             );
-            syncedPosition( pos );
+            syncedPosition( position );
 
             // And notify computers that we have space for more audio.
             synchronized( computers )
@@ -153,25 +153,19 @@ public abstract class SpeakerPeripheral implements IPeripheral
         // Push position updates to any speakers which have ever played a note,
         // have moved by a non-trivial amount and haven't had a position update
         // in the last second.
-        if( lastPosition != null && (clock - lastPositionTime) >= 20 )
+        if( lastPosition != null && (clock - lastPositionTime) >= 20 && !lastPosition.withinDistance( position, 0.1 ) )
         {
-            Vec3 position = getPosition();
+            // TODO: What to do when entities move away? How do we notify people left behind that they're gone.
-            if( lastPosition.distanceToSqr( position ) >= 0.1 )
+            NetworkHandler.sendToAllTracking(
-            {
+                new SpeakerMoveClientMessage( getSource(), position ),
-                NetworkHandler.sendToAllTracking(
+                level.getChunkAt( new BlockPos( pos ) )
-                    new SpeakerMoveClientMessage( getSource(), position ),
+            );
-                    getLevel().getChunkAt( new BlockPos( position ) )
+            syncedPosition( position );
-                );
-                syncedPosition( position );
-            }
         }
     }
 
-    @Nullable
-    public abstract Level getLevel();
-
     @Nonnull
-    public abstract Vec3 getPosition();
+    public abstract SpeakerPosition getPosition();
 
     @Nonnull
     public UUID getSource()
@@ -373,7 +367,7 @@ public abstract class SpeakerPeripheral implements IPeripheral
         shouldStop = true;
     }
 
-    private void syncedPosition( Vec3 position )
+    private void syncedPosition( SpeakerPosition position )
     {
         lastPosition = position;
         lastPositionTime = clock;

src/main/java/dan200/computercraft/shared/peripheral/speaker/SpeakerPosition.java

@@ -0,0 +1,88 @@
+/*
+ * This file is part of ComputerCraft - http://www.computercraft.info
+ * Copyright Daniel Ratcliffe, 2011-2022. Do not distribute without permission.
+ * Send enquiries to dratcliffe@gmail.com
+ */
+package dan200.computercraft.shared.peripheral.speaker;
+
+import net.minecraft.client.Minecraft;
+import net.minecraft.network.FriendlyByteBuf;
+import net.minecraft.resources.ResourceLocation;
+import net.minecraft.world.entity.Entity;
+import net.minecraft.world.level.Level;
+import net.minecraft.world.phys.Vec3;
+
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
+import java.util.OptionalInt;
+
+public record SpeakerPosition(@Nullable Level level, @Nonnull Vec3 position, @Nullable Entity entity)
+{
+    public static SpeakerPosition of( @Nullable Level level, @Nonnull Vec3 position )
+    {
+        return new SpeakerPosition( level, position, null );
+    }
+
+    public static SpeakerPosition of( @Nonnull Entity entity )
+    {
+        return new SpeakerPosition( entity.level, entity.getEyePosition( 1 ), entity );
+    }
+
+    public boolean withinDistance( SpeakerPosition other, double distanceSq )
+    {
+        return level == other.level && entity == other.entity && position.distanceToSqr( other.position ) <= distanceSq;
+    }
+
+    public Message asMessage()
+    {
+        if( level == null ) throw new NullPointerException( "Cannot send a position without a level" );
+        return new Message( level.dimension().getRegistryName(), position, entity == null ? OptionalInt.empty() : OptionalInt.of( entity.getId() ) );
+    }
+
+    public static final class Message
+    {
+        private final ResourceLocation level;
+        private final Vec3 position;
+        private final OptionalInt entity;
+
+        private Message( ResourceLocation level, Vec3 position, OptionalInt entity )
+        {
+            this.level = level;
+            this.position = position;
+            this.entity = entity;
+        }
+
+        public static Message read( @Nonnull FriendlyByteBuf buffer )
+        {
+            ResourceLocation level = buffer.readResourceLocation();
+            Vec3 position = new Vec3( buffer.readDouble(), buffer.readDouble(), buffer.readDouble() );
+            OptionalInt entity = buffer.readBoolean() ? OptionalInt.of( buffer.readInt() ) : OptionalInt.empty();
+            return new Message( level, position, entity );
+        }
+
+        public void write( @Nonnull FriendlyByteBuf buffer )
+        {
+            buffer.writeResourceLocation( level );
+
+            buffer.writeDouble( position.x );
+            buffer.writeDouble( position.y );
+            buffer.writeDouble( position.z );
+
+            buffer.writeBoolean( entity.isPresent() );
+            if( entity.isPresent() ) buffer.writeInt( entity.getAsInt() );
+        }
+
+        @Nonnull
+        public SpeakerPosition reify()
+        {
+            Minecraft minecraft = Minecraft.getInstance();
+            Level level = minecraft.level;
+            if( level != null && !level.dimension().getRegistryName().equals( this.level ) ) level = null;
+
+            return new SpeakerPosition(
+                level, position,
+                level != null && entity.isPresent() ? level.getEntity( entity.getAsInt() ) : null
+            );
+        }
+    }
+}

src/main/java/dan200/computercraft/shared/peripheral/speaker/TileSpeaker.java

@@ -12,7 +12,6 @@ import dan200.computercraft.shared.network.client.SpeakerStopClientMessage;
 import dan200.computercraft.shared.util.CapabilityUtil;
 import net.minecraft.core.BlockPos;
 import net.minecraft.core.Direction;
-import net.minecraft.world.level.Level;
 import net.minecraft.world.level.block.entity.BlockEntityType;
 import net.minecraft.world.level.block.state.BlockState;
 import net.minecraft.world.phys.Vec3;
@@ -79,17 +78,11 @@ public class TileSpeaker extends TileGeneric
             this.speaker = speaker;
         }
 
-        @Override
-        public Level getLevel()
-        {
-            return speaker.getLevel();
-        }
-
         @Nonnull
         @Override
-        public Vec3 getPosition()
+        public SpeakerPosition getPosition()
         {
-            return Vec3.atCenterOf( speaker.getBlockPos() );
+            return SpeakerPosition.of( speaker.getLevel(), Vec3.atCenterOf( speaker.getBlockPos() ) );
         }
 
         @Override

src/main/java/dan200/computercraft/shared/pocket/core/PocketServerComputer.java

@@ -21,6 +21,7 @@ import net.minecraft.resources.ResourceLocation;
 import net.minecraft.server.level.ServerPlayer;
 import net.minecraft.world.entity.Entity;
 import net.minecraft.world.entity.LivingEntity;
+import net.minecraft.world.entity.item.ItemEntity;
 import net.minecraft.world.entity.player.Inventory;
 import net.minecraft.world.entity.player.Player;
 import net.minecraft.world.item.ItemStack;
@@ -60,6 +61,10 @@ public class PocketServerComputer extends ServerComputer implements IPocketAcces
         {
             return living.getMainHandItem() == stack || living.getOffhandItem() == stack ? entity : null;
         }
+        else if( entity instanceof ItemEntity itemEntity )
+        {
+            return itemEntity.getItem() == stack ? entity : null;
+        }
         else
         {
             return null;

src/main/java/dan200/computercraft/shared/pocket/peripherals/PocketSpeaker.java

@@ -10,7 +10,6 @@ import dan200.computercraft.api.pocket.AbstractPocketUpgrade;
 import dan200.computercraft.api.pocket.IPocketAccess;
 import dan200.computercraft.shared.peripheral.speaker.UpgradeSpeakerPeripheral;
 import net.minecraft.resources.ResourceLocation;
-import net.minecraft.world.entity.Entity;
 import net.minecraft.world.item.ItemStack;
 
 import javax.annotation.Nonnull;
@@ -27,21 +26,13 @@ public class PocketSpeaker extends AbstractPocketUpgrade
     @Override
     public IPeripheral createPeripheral( @Nonnull IPocketAccess access )
     {
-        return new PocketSpeakerPeripheral();
+        return new PocketSpeakerPeripheral( access );
     }
 
     @Override
     public void update( @Nonnull IPocketAccess access, @Nullable IPeripheral peripheral )
     {
-        if( !(peripheral instanceof PocketSpeakerPeripheral speaker) ) return;
+        if( !(peripheral instanceof PocketSpeakerPeripheral) ) return;
-
+        ((PocketSpeakerPeripheral) peripheral).update();
-        Entity entity = access.getEntity();
-        if( entity != null )
-        {
-            speaker.setLocation( entity.getCommandSenderWorld(), entity.getEyePosition( 1 ) );
-        }
-
-        speaker.update();
-        access.setLight( speaker.madeSound() ? 0x3320fc : -1 );
     }
 }

src/main/java/dan200/computercraft/shared/pocket/peripherals/PocketSpeakerPeripheral.java

@@ -6,7 +6,10 @@
 package dan200.computercraft.shared.pocket.peripherals;
 
 import dan200.computercraft.api.peripheral.IPeripheral;
+import dan200.computercraft.api.pocket.IPocketAccess;
+import dan200.computercraft.shared.peripheral.speaker.SpeakerPosition;
 import dan200.computercraft.shared.peripheral.speaker.UpgradeSpeakerPeripheral;
+import net.minecraft.world.entity.Entity;
 import net.minecraft.world.level.Level;
 import net.minecraft.world.phys.Vec3;
 
@@ -14,26 +17,21 @@ import javax.annotation.Nonnull;
 
 public class PocketSpeakerPeripheral extends UpgradeSpeakerPeripheral
 {
-    private Level world = null;
+    private final IPocketAccess access;
+    private Level level;
     private Vec3 position = Vec3.ZERO;
 
-    void setLocation( Level world, Vec3 position )
+    public PocketSpeakerPeripheral( IPocketAccess access )
     {
-        this.position = position;
+        this.access = access;
-        this.world = world;
-    }
-
-    @Override
-    public Level getLevel()
-    {
-        return world;
     }
 
     @Nonnull
     @Override
-    public Vec3 getPosition()
+    public SpeakerPosition getPosition()
     {
-        return world != null ? position : null;
+        Entity entity = access.getEntity();
+        return entity == null ? SpeakerPosition.of( level, position ) : SpeakerPosition.of( entity );
     }
 
     @Override
@@ -41,4 +39,19 @@ public class PocketSpeakerPeripheral extends UpgradeSpeakerPeripheral
     {
         return other instanceof PocketSpeakerPeripheral;
     }
+
+    @Override
+    public void update()
+    {
+        Entity entity = access.getEntity();
+        if( entity != null )
+        {
+            level = entity.level;
+            position = entity.position();
+        }
+
+        super.update();
+
+        access.setLight( madeSound() ? 0x3320fc : -1 );
+    }
 }

src/main/java/dan200/computercraft/shared/turtle/upgrades/TurtleSpeaker.java

@@ -11,11 +11,11 @@ import dan200.computercraft.api.turtle.AbstractTurtleUpgrade;
 import dan200.computercraft.api.turtle.ITurtleAccess;
 import dan200.computercraft.api.turtle.TurtleSide;
 import dan200.computercraft.api.turtle.TurtleUpgradeType;
+import dan200.computercraft.shared.peripheral.speaker.SpeakerPosition;
 import dan200.computercraft.shared.peripheral.speaker.UpgradeSpeakerPeripheral;
 import net.minecraft.client.resources.model.ModelResourceLocation;
 import net.minecraft.resources.ResourceLocation;
 import net.minecraft.world.item.ItemStack;
-import net.minecraft.world.level.Level;
 import net.minecraft.world.phys.Vec3;
 import net.minecraftforge.api.distmarker.Dist;
 import net.minecraftforge.api.distmarker.OnlyIn;
@@ -36,17 +36,11 @@ public class TurtleSpeaker extends AbstractTurtleUpgrade
             this.turtle = turtle;
         }
 
-        @Override
-        public Level getLevel()
-        {
-            return turtle.getLevel();
-        }
-
         @Nonnull
         @Override
-        public Vec3 getPosition()
+        public SpeakerPosition getPosition()
         {
-            return Vec3.atCenterOf( turtle.getPosition() );
+            return SpeakerPosition.of( turtle.getLevel(), Vec3.atCenterOf( turtle.getPosition() ) );
         }
 
         @Override