1.16 pre7

common/src/main/java/us/myles/ViaVersion/api/minecraft/chunks/BaseChunk.java

@@ -8,16 +8,18 @@ public class BaseChunk implements Chunk {
     protected final int x;
     protected final int z;
     protected final boolean fullChunk;
+    protected boolean ignoreOldLightData;
     protected final int bitmask;
     protected final ChunkSection[] sections;
     protected int[] biomeData;
     protected CompoundTag heightMap;
     protected final List<CompoundTag> blockEntities;
 
-    public BaseChunk(int x, int z, boolean fullChunk, int bitmask, ChunkSection[] sections, int[] biomeData, CompoundTag heightMap, List<CompoundTag> blockEntities) {
+    public BaseChunk(int x, int z, boolean fullChunk, boolean ignoreOldLightData, int bitmask, ChunkSection[] sections, int[] biomeData, CompoundTag heightMap, List<CompoundTag> blockEntities) {
         this.x = x;
         this.z = z;
         this.fullChunk = fullChunk;
+        this.ignoreOldLightData = ignoreOldLightData;
         this.bitmask = bitmask;
         this.sections = sections;
         this.biomeData = biomeData;
@@ -25,8 +27,8 @@ public class BaseChunk implements Chunk {
         this.blockEntities = blockEntities;
     }
 
-    public BaseChunk(int x, int z, boolean fullChunk, int bitmask, ChunkSection[] sections, int[] biomeData, List<CompoundTag> blockEntities) {
+    public BaseChunk(int x, int z, boolean fullChunk, boolean ignoreOldLightData, int bitmask, ChunkSection[] sections, int[] biomeData, List<CompoundTag> blockEntities) {
-        this(x, z, fullChunk, bitmask, sections, biomeData, null, blockEntities);
+        this(x, z, fullChunk, ignoreOldLightData, bitmask, sections, biomeData, null, blockEntities);
     }
 
     @Override
@@ -49,6 +51,16 @@ public class BaseChunk implements Chunk {
         return fullChunk;
     }
 
+    @Override
+    public boolean isIgnoreOldLightData() {
+        return ignoreOldLightData;
+    }
+
+    @Override
+    public void setIgnoreOldLightData(boolean ignoreOldLightData) {
+        this.ignoreOldLightData = ignoreOldLightData;
+    }
+
     @Override
     public int getBitmask() {
         return bitmask;

common/src/main/java/us/myles/ViaVersion/api/minecraft/chunks/Chunk.java

@@ -19,6 +19,10 @@ public interface Chunk {
         return isFullChunk();
     }
 
+    boolean isIgnoreOldLightData();
+
+    void setIgnoreOldLightData(boolean ignoreOldLightData);
+
     int getBitmask();
 
     ChunkSection[] getSections();

common/src/main/java/us/myles/ViaVersion/api/minecraft/chunks/Chunk1_8.java

@@ -9,7 +9,7 @@ public class Chunk1_8 extends BaseChunk {
     private boolean unloadPacket;
 
     public Chunk1_8(int x, int z, boolean groundUp, int bitmask, ChunkSection[] sections, int[] biomeData, List<CompoundTag> blockEntities) {
-        super(x, z, groundUp, bitmask, sections, biomeData, blockEntities);
+        super(x, z, groundUp, false, bitmask, sections, biomeData, blockEntities);
     }
 
     /**

common/src/main/java/us/myles/ViaVersion/api/protocol/ProtocolVersion.java

@@ -80,7 +80,7 @@ public class ProtocolVersion {
         register(v1_15 = new ProtocolVersion(573, "1.15"));
         register(v1_15_1 = new ProtocolVersion(575, "1.15.1"));
         register(v1_15_2 = new ProtocolVersion(578, "1.15.2"));
-        register(v1_16 = new ProtocolVersion(730, "1.16"));
+        register(v1_16 = new ProtocolVersion(732, "1.16"));
 
         register(unknown = new ProtocolVersion(-1, "UNKNOWN"));
     }

common/src/main/java/us/myles/ViaVersion/api/rewriters/ItemRewriter.java

@@ -45,6 +45,7 @@ public class ItemRewriter {
         });
     }
 
+    // Sub 1.16
     public void registerEntityEquipment(ClientboundPacketType packetType, Type<Item> type) {
         protocol.registerOutgoing(packetType, new PacketRemapper() {
             @Override
@@ -58,6 +59,25 @@ public class ItemRewriter {
         });
     }
 
+    // 1.16+
+    public void registerEntityEquipmentArray(ClientboundPacketType packetType, Type<Item> type) {
+        protocol.registerOutgoing(packetType, new PacketRemapper() {
+            @Override
+            public void registerMap() {
+                map(Type.VAR_INT); // 0 - Entity ID
+
+                handler(wrapper -> {
+                    byte slot;
+                    do {
+                        slot = wrapper.read(Type.BYTE);
+                         // & 0x7F into an extra variable if slot is needed
+                        toClient.rewrite(wrapper.passthrough(type));
+                    } while ((slot & 0xFFFFFF80) != 0);
+                });
+            }
+        });
+    }
+
     public void registerCreativeInvAction(ServerboundPacketType packetType, Type<Item> type) {
         protocol.registerIncoming(packetType, new PacketRemapper() {
             @Override

common/src/main/java/us/myles/ViaVersion/protocols/protocol1_13to1_12_2/types/Chunk1_13Type.java

@@ -66,7 +66,7 @@ public class Chunk1_13Type extends PartialType<Chunk, ClientWorld> {
             }
         }
 
-        return new BaseChunk(chunkX, chunkZ, fullChunk, primaryBitmask, sections, biomeData, nbtData);
+        return new BaseChunk(chunkX, chunkZ, fullChunk, false, primaryBitmask, sections, biomeData, nbtData);
     }
 
     @Override

common/src/main/java/us/myles/ViaVersion/protocols/protocol1_14to1_13_2/types/Chunk1_14Type.java

@@ -61,7 +61,7 @@ public class Chunk1_14Type extends PartialType<Chunk, ClientWorld> {
             }
         }
 
-        return new BaseChunk(chunkX, chunkZ, fullChunk, primaryBitmask, sections, biomeData, heightMap, nbtData);
+        return new BaseChunk(chunkX, chunkZ, fullChunk, false, primaryBitmask, sections, biomeData, heightMap, nbtData);
     }
 
     @Override

common/src/main/java/us/myles/ViaVersion/protocols/protocol1_15to1_14_4/types/Chunk1_15Type.java

@@ -62,7 +62,7 @@ public class Chunk1_15Type extends PartialType<Chunk, ClientWorld> {
             }
         }
 
-        return new BaseChunk(chunkX, chunkZ, fullChunk, primaryBitmask, sections, biomeData, heightMap, nbtData);
+        return new BaseChunk(chunkX, chunkZ, fullChunk, false, primaryBitmask, sections, biomeData, heightMap, nbtData);
     }
 
     @Override

common/src/main/java/us/myles/ViaVersion/protocols/protocol1_16to1_15_2/packets/InventoryPackets.java

@@ -95,7 +95,19 @@ public class InventoryPackets {
         });
 
         itemRewriter.registerSetSlot(ClientboundPackets1_15.SET_SLOT, Type.FLAT_VAR_INT_ITEM);
-        itemRewriter.registerEntityEquipment(ClientboundPackets1_15.ENTITY_EQUIPMENT, Type.FLAT_VAR_INT_ITEM);
+
+        protocol.registerOutgoing(ClientboundPackets1_15.ENTITY_EQUIPMENT, new PacketRemapper() {
+            @Override
+            public void registerMap() {
+                map(Type.VAR_INT); // 0 - Entity ID
+
+                handler(wrapper -> {
+                    int slot = wrapper.read(Type.VAR_INT);
+                    wrapper.write(Type.BYTE, (byte) slot);
+                    InventoryPackets.toClient(wrapper.passthrough(Type.FLAT_VAR_INT_ITEM));
+                });
+            }
+        });
 
         protocol.registerOutgoing(ClientboundPackets1_15.DECLARE_RECIPES, new PacketRemapper() {
             @Override

common/src/main/java/us/myles/ViaVersion/protocols/protocol1_16to1_15_2/packets/WorldPackets.java

@@ -47,6 +47,9 @@ public class WorldPackets {
                     ClientWorld clientWorld = wrapper.user().get(ClientWorld.class);
                     Chunk chunk = wrapper.read(new Chunk1_15Type(clientWorld));
                     wrapper.write(new Chunk1_16Type(clientWorld), chunk);
+
+                    chunk.setIgnoreOldLightData(chunk.isFullChunk());
+
                     for (int s = 0; s < 16; s++) {
                         ChunkSection section = chunk.getSections()[s];
                         if (section == null) continue;

common/src/main/java/us/myles/ViaVersion/protocols/protocol1_16to1_15_2/types/Chunk1_16Type.java

@@ -29,6 +29,7 @@ public class Chunk1_16Type extends PartialType<Chunk, ClientWorld> {
         int chunkZ = input.readInt();
 
         boolean fullChunk = input.readBoolean();
+        boolean ignoreOldLightData = input.readBoolean();
         int primaryBitmask = Type.VAR_INT.read(input);
         CompoundTag heightMap = Type.NBT.read(input);
 
@@ -62,7 +63,7 @@ public class Chunk1_16Type extends PartialType<Chunk, ClientWorld> {
             }
         }
 
-        return new BaseChunk(chunkX, chunkZ, fullChunk, primaryBitmask, sections, biomeData, heightMap, nbtData);
+        return new BaseChunk(chunkX, chunkZ, fullChunk, ignoreOldLightData, primaryBitmask, sections, biomeData, heightMap, nbtData);
     }
 
     @Override
@@ -71,6 +72,7 @@ public class Chunk1_16Type extends PartialType<Chunk, ClientWorld> {
         output.writeInt(chunk.getZ());
 
         output.writeBoolean(chunk.isFullChunk());
+        output.writeBoolean(chunk.isIgnoreOldLightData());
         Type.VAR_INT.write(output, chunk.getBitmask());
         Type.NBT.write(output, chunk.getHeightMap());
 

common/src/main/java/us/myles/ViaVersion/protocols/protocol1_9_1_2to1_9_3_4/types/Chunk1_9_3_4Type.java

@@ -62,7 +62,7 @@ public class Chunk1_9_3_4Type extends PartialType<Chunk, ClientWorld> {
             }
         }
 
-        return new BaseChunk(chunkX, chunkZ, fullChunk, primaryBitmask, sections, biomeData, nbtData);
+        return new BaseChunk(chunkX, chunkZ, fullChunk, false, primaryBitmask, sections, biomeData, nbtData);
     }
 
     @Override

common/src/main/java/us/myles/ViaVersion/protocols/protocol1_9_3to1_9_1_2/types/Chunk1_9_1_2Type.java

@@ -66,7 +66,7 @@ public class Chunk1_9_1_2Type extends PartialType<Chunk, ClientWorld> {
             }
         }
 
-        return new BaseChunk(chunkX, chunkZ, groundUp, primaryBitmask, sections, biomeData, new ArrayList<CompoundTag>());
+        return new BaseChunk(chunkX, chunkZ, groundUp, false, primaryBitmask, sections, biomeData, new ArrayList<CompoundTag>());
     }
 
     @Override