Minecraft 1.18

pom.xml

@@ -5,7 +5,7 @@
 	<groupId>com.loohp</groupId>
 	<artifactId>Limbo</artifactId>
 	<name>Limbo</name>
-	<version>0.6.4-ALPHA</version>
+	<version>0.6.5-ALPHA</version>
 	
 	<description>Standalone Limbo Minecraft Server.</description>
 	<url>https://github.com/LOOHP/Limbo</url>
@@ -117,7 +117,7 @@
 				</executions>
 			</plugin>
 		</plugins>
-		<finalName>${project.artifactId}-${project.version}-1.17.1</finalName>
+		<finalName>${project.artifactId}-${project.version}-1.18</finalName>
 	</build>
 
 	<profiles>

src/main/java/com/loohp/limbo/Limbo.java

@@ -106,8 +106,8 @@ public class Limbo {
 	
 	//===========================
 	
-	public final String serverImplementationVersion = "1.17.1";
-	public final int serverImplmentationProtocol = 756;
+	public final String serverImplementationVersion = "1.18";
+	public final int serverImplmentationProtocol = 757;
 	public final String limboImplementationVersion;
 	
 	private AtomicBoolean isRunning;

src/main/java/com/loohp/limbo/player/PlayerInteractManager.java

@@ -15,8 +15,7 @@ import com.loohp.limbo.entity.Entity;
 import com.loohp.limbo.location.Location;
 import com.loohp.limbo.server.packets.PacketPlayOutEntityDestroy;
 import com.loohp.limbo.server.packets.PacketPlayOutEntityMetadata;
-import com.loohp.limbo.server.packets.PacketPlayOutLightUpdate;
-import com.loohp.limbo.server.packets.PacketPlayOutMapChunk;
+import com.loohp.limbo.server.packets.ClientboundLevelChunkWithLightPacket;
 import com.loohp.limbo.server.packets.PacketPlayOutSpawnEntity;
 import com.loohp.limbo.server.packets.PacketPlayOutSpawnEntityLiving;
 import com.loohp.limbo.server.packets.PacketPlayOutUnloadChunk;
@@ -112,9 +111,6 @@ public class PlayerInteractManager {
 		for (Chunk chunk : chunksInRange) {
 			if (!chunks.containsKey(chunk)) {
 				int[] chunkPos = world.getChunkXZ(chunk);
-				PacketPlayOutMapChunk packet0 = new PacketPlayOutMapChunk(chunkPos[0], chunkPos[1], chunk, world.getEnvironment());
-				player.clientConnection.sendPacket(packet0);
-				
 				List<Byte[]> blockChunk = world.getLightEngineBlock().getBlockLightBitMask(chunkPos[0], chunkPos[1]);
 				if (blockChunk == null) {
 					blockChunk = new ArrayList<>();
@@ -126,7 +122,7 @@ public class PlayerInteractManager {
 				if (skyChunk == null) {
 					skyChunk = new ArrayList<>();
 				}
-				PacketPlayOutLightUpdate chunkdata = new PacketPlayOutLightUpdate(chunkPos[0], chunkPos[1], true, skyChunk, blockChunk);
+				ClientboundLevelChunkWithLightPacket chunkdata = new ClientboundLevelChunkWithLightPacket(chunkPos[0], chunkPos[1], chunk, world.getEnvironment(), true, skyChunk, blockChunk);
 				player.clientConnection.sendPacket(chunkdata);
 			}
 		}

src/main/java/com/loohp/limbo/registry/Registry.java

@@ -0,0 +1,84 @@
+package com.loohp.limbo.registry;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.util.HashMap;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.Map.Entry;
+
+import org.json.simple.JSONObject;
+import org.json.simple.parser.JSONParser;
+import org.json.simple.parser.ParseException;
+
+import com.loohp.limbo.Limbo;
+import com.loohp.limbo.utils.NamespacedKey;
+
+public class Registry {
+	
+	public static final BlockEntityRegistry BLOCK_ENTITY_TYPE;
+	
+	static {
+		String name = "registries.json";
+        File file = new File(Limbo.getInstance().getInternalDataFolder(), name);
+        if (!file.exists()) {
+        	try (InputStream in = Limbo.class.getClassLoader().getResourceAsStream(name)) {
+                Files.copy(in, file.toPath());
+            } catch (IOException e) {
+            	e.printStackTrace();
+            }
+        }
+        
+        Map<NamespacedKey, Integer> blockEntityType = new HashMap<>();
+        try (InputStreamReader reader = new InputStreamReader(new FileInputStream(file), StandardCharsets.UTF_8)) {
+			JSONObject json = (JSONObject) new JSONParser().parse(reader);
+			
+			JSONObject blockEntityJson = (JSONObject) ((JSONObject) json.get("minecraft:block_entity_type")).get("entries");
+			for (Object obj : blockEntityJson.keySet()) {
+				String key = obj.toString();
+				int id = (int) (long) ((JSONObject) blockEntityJson.get(key)).get("protocol_id");
+				blockEntityType.put(new NamespacedKey(key), id);
+			}
+		} catch (IOException | ParseException e) {
+			e.printStackTrace();
+		}
+        BLOCK_ENTITY_TYPE = new BlockEntityRegistry(blockEntityType);
+	}
+	
+    public static class BlockEntityRegistry {
+    	
+    	private Map<NamespacedKey, Integer> blockEntityType;
+    	
+    	private BlockEntityRegistry(Map<NamespacedKey, Integer> blockEntityType) {
+    		this.blockEntityType = blockEntityType;
+    	}
+    	
+    	public int getId(NamespacedKey key) {
+    		Integer exact = blockEntityType.get(key);
+    		if (exact != null) {
+    			return exact;
+    		}
+    		List<String> toTest = new LinkedList<>();
+    		toTest.add(key.getKey());
+    		if (key.getKey().contains("head")) {
+    			toTest.add("skull");
+    		}
+    		for (Entry<NamespacedKey, Integer> entry : blockEntityType.entrySet()) {
+    			NamespacedKey namespacedKey = entry.getKey();
+    			for (String each : toTest) {
+    				if (namespacedKey.getNamespace().equals(key.getNamespace()) && (each.contains(namespacedKey.getKey()) || namespacedKey.getKey().contains(each))) {
+        				return entry.getValue();
+        			}
+    			}
+    		}
+    		return -1;
+    	}
+    }
+
+}

src/main/java/com/loohp/limbo/server/ClientConnection.java

@@ -374,7 +374,7 @@ public class ClientConnection extends Thread {
 				worldSpawn = joinEvent.getSpawnLocation();
 				World world = worldSpawn.getWorld();
 				
-    			PacketPlayOutLogin join = new PacketPlayOutLogin(player.getEntityId(), false, properties.getDefaultGamemode(), Limbo.getInstance().getWorlds(), Limbo.getInstance().getDimensionRegistry().getCodec(), world, 0, (byte) properties.getMaxPlayers(), 8, properties.isReducedDebugInfo(), true, false, true);
+    			PacketPlayOutLogin join = new PacketPlayOutLogin(player.getEntityId(), false, properties.getDefaultGamemode(), Limbo.getInstance().getWorlds(), Limbo.getInstance().getDimensionRegistry().getCodec(), world, 0, (byte) properties.getMaxPlayers(), 8, 8, properties.isReducedDebugInfo(), true, false, true);
     			sendPacket(join);
     			Limbo.getInstance().getUnsafe().setPlayerGameModeSilently(player, properties.getDefaultGamemode());
     			

src/main/java/com/loohp/limbo/server/packets/ClientboundLevelChunkWithLightPacket.java

@@ -0,0 +1,304 @@
+package com.loohp.limbo.server.packets;
+
+import java.io.ByteArrayOutputStream;
+import java.io.DataOutputStream;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.BitSet;
+import java.util.Iterator;
+import java.util.LinkedList;
+import java.util.List;
+
+import com.loohp.limbo.registry.Registry;
+import com.loohp.limbo.utils.BitsUtils;
+import com.loohp.limbo.utils.DataTypeIO;
+import com.loohp.limbo.utils.NamespacedKey;
+import com.loohp.limbo.world.Environment;
+import com.loohp.limbo.world.GeneratedBlockDataMappings;
+
+import net.querz.mca.Chunk;
+import net.querz.mca.Section;
+import net.querz.nbt.tag.CompoundTag;
+import net.querz.nbt.tag.ListTag;
+
+public class ClientboundLevelChunkWithLightPacket extends PacketOut {
+
+	private int chunkX;
+	private int chunkZ;
+	private Chunk chunk;
+	private Environment environment;
+	private boolean trustEdges;
+	private long[] skyLightBitMasks;
+	private long[] blockLightBitMasks;
+	private long[] skyLightBitMasksEmpty;
+	private long[] blockLightBitMasksEmpty;
+	private List<Byte[]> skylightArrays;
+	private List<Byte[]> blocklightArrays;
+	
+	public ClientboundLevelChunkWithLightPacket(int chunkX, int chunkZ, Chunk chunk, Environment environment, boolean trustEdges, List<Byte[]> skylightArrays, List<Byte[]> blocklightArrays) {
+		this.chunkX = chunkX;
+		this.chunkZ = chunkZ;
+		this.chunk = chunk;
+		this.environment = environment;
+		this.chunkX = chunkX;
+		this.chunkZ = chunkZ;
+		this.trustEdges = trustEdges;
+		this.skylightArrays = skylightArrays;
+		this.blocklightArrays = blocklightArrays;
+		
+		BitSet skyLightBitSet = new BitSet();
+		BitSet skyLightBitSetInverse = new BitSet();
+		for (int i = Math.min(17, skylightArrays.size() - 1); i >= 0; i--) {
+			skyLightBitSet.set(i, skylightArrays.get(i) != null);
+			skyLightBitSetInverse.set(i, skylightArrays.get(i) == null);
+		}
+		skyLightBitMasks = skyLightBitSet.toLongArray();
+		skyLightBitMasksEmpty = skyLightBitSetInverse.toLongArray();
+		
+		BitSet blockLightBitSet = new BitSet();
+		BitSet blockLightBitSetInverse = new BitSet();
+		for (int i = Math.min(17, blocklightArrays.size() - 1); i >= 0; i--) {
+			blockLightBitSet.set(i, blocklightArrays.get(i) != null);
+			blockLightBitSetInverse.set(i, blocklightArrays.get(i) == null);
+		}
+		blockLightBitMasks = blockLightBitSet.toLongArray();
+		blockLightBitMasksEmpty = blockLightBitSetInverse.toLongArray();
+	}
+
+	public Chunk getChunk() {
+		return chunk;
+	}
+	
+	public int getChunkX() {
+		return chunkX;
+	}
+
+	public int getChunkZ() {
+		return chunkZ;
+	}
+	
+	public Environment getEnvironment() {
+		return environment;
+	}
+	
+	public boolean isTrustEdges() {
+		return trustEdges;
+	}
+
+	public long[] getSkyLightBitMasks() {
+		return skyLightBitMasks;
+	}
+
+	public long[] getBlockLightBitMasks() {
+		return blockLightBitMasks;
+	}
+
+	public List<Byte[]> getSkylightArrays() {
+		return skylightArrays;
+	}
+
+	public List<Byte[]> getBlocklightArrays() {
+		return blocklightArrays;
+	}
+
+	@Override
+	public byte[] serializePacket() throws IOException {
+		ByteArrayOutputStream buffer = new ByteArrayOutputStream();
+		
+		DataOutputStream output = new DataOutputStream(buffer);
+		output.writeByte(Packet.getPlayOut().get(getClass()));
+		
+		output.writeInt(chunkX);
+		output.writeInt(chunkZ);
+		DataTypeIO.writeCompoundTag(output, chunk.getHeightMaps());
+		
+		ByteArrayOutputStream dataBuffer = new ByteArrayOutputStream();
+		DataOutputStream dataOut = new DataOutputStream(dataBuffer);
+		for (int i = 0; i < 16; i++) {
+			Section section = chunk.getSection(i);
+			if (section != null) {
+				int counter = 0;
+				for (int x = 0; x < 16; x++) {
+					for (int z = 0; z < 16; z++) {
+						for (int y = 0; y < 16; y++) {
+							CompoundTag tag = section.getBlockStateAt(x, y, z);
+							if (tag != null && !tag.getString("Name").equals("minecraft:air")) {
+								counter++;
+							}
+						}
+					}
+				}				
+				dataOut.writeShort(counter);
+
+				int newBits = 32 - Integer.numberOfLeadingZeros(section.getPalette().size() - 1);
+				newBits = Math.max(newBits, 4);
+				//Limbo.getInstance().getConsole().sendMessage(i + " " + newBits);
+				if (newBits <= 8) {
+					/*
+					if (newBits == 4) {
+						dataOut.writeByte(4);
+					} else {
+						newBits = 8;
+						ChunkDataUtils.adjustBlockStateBits(newBits, section, chunk.getDataVersion());
+						dataOut.writeByte(8);
+					}
+					*/
+					dataOut.writeByte(newBits);
+					
+					DataTypeIO.writeVarInt(dataOut, section.getPalette().size());
+					//Limbo.getInstance().getConsole().sendMessage(section.getPalette().size());
+					Iterator<CompoundTag> itr1 = section.getPalette().iterator();
+					//Limbo.getInstance().getConsole().sendMessage("Nonnull -> " + i + " " + newBits);
+					while (itr1.hasNext()) {
+						CompoundTag tag = itr1.next();
+						DataTypeIO.writeVarInt(dataOut, GeneratedBlockDataMappings.getGlobalPaletteIDFromState(tag));
+						//Limbo.getInstance().getConsole().sendMessage(tag + " -> " + GeneratedDataUtils.getGlobalPaletteIDFromState(tag));
+					}
+					
+					BitSet bits = BitSet.valueOf(section.getBlockStates());
+					int shift = 64 % newBits;
+					int longsNeeded = (int) Math.ceil(4096 / (double) (64 / newBits));
+					for (int u = 64; u <= bits.length(); u += 64) {
+						bits = BitsUtils.shiftAfter(bits, u - shift, shift);
+					}
+					
+					long[] formattedLongs = bits.toLongArray(); 
+					//Limbo.getInstance().getConsole().sendMessage(longsNeeded + "");
+					
+					DataTypeIO.writeVarInt(dataOut, longsNeeded);
+					for (int u = 0; u < longsNeeded; u++) {
+						if (u < formattedLongs.length) {
+							dataOut.writeLong(formattedLongs[u]);
+						} else {
+							dataOut.writeLong(0);
+						}
+						//Limbo.getInstance().getConsole().sendMessage(Arrays.toString(section.getBlockStates()));
+					}
+				} else {
+					try {
+						dataOut.writeByte(15);
+						section.getBlockStates();
+						int longsNeeded = 1024;
+						List<Integer> list = new LinkedList<>();
+						for (int y = 0; y < 16; y++) {
+							for (int z = 0; z < 16; z++) {
+								for (int x = 0; x < 16; x++) {
+									list.add(GeneratedBlockDataMappings.getGlobalPaletteIDFromState(section.getBlockStateAt(x, y, z)));
+								}
+							}
+						}
+						List<Long> globalLongs = new ArrayList<>();
+						long currentLong = 0;
+						int pos = 0;
+						int u = 0;
+						while (pos < longsNeeded) {
+							if (u == 3) {
+								globalLongs.add(currentLong);
+								currentLong = 0;
+								u = 0;
+								pos++;
+							} else {
+								u++;
+							}
+							int id = list.isEmpty() ? 0 : list.remove(0);
+							currentLong = currentLong << 15;
+							currentLong |= (long) id;
+						}
+						DataTypeIO.writeVarInt(dataOut, longsNeeded);
+						for (int j = 0; j < longsNeeded; j++) {
+							if (j < globalLongs.size()) {
+								dataOut.writeLong(globalLongs.get(j));
+							} else {
+								dataOut.writeLong(0);
+							}
+						}
+					} catch (Exception e) {
+						e.printStackTrace();
+					}
+				}
+			} else {
+				dataOut.writeShort(0);
+				dataOut.writeByte(0);
+				DataTypeIO.writeVarInt(dataOut, 0);
+				DataTypeIO.writeVarInt(dataOut, 0);
+			}
+			int biome;
+			if (environment.equals(Environment.END)) {
+				biome = 9; //the_end
+			} else if (environment.equals(Environment.NETHER)) {
+				biome = 8; //nether_waste
+			} else if (environment.equals(Environment.NORMAL)) {
+				biome = 1; //plains
+			} else {
+				biome = 1; //plains
+			}
+			dataOut.writeByte(0);
+			DataTypeIO.writeVarInt(dataOut, biome);
+			DataTypeIO.writeVarInt(dataOut, 0);
+		}
+		
+		byte[] data = dataBuffer.toByteArray();
+		DataTypeIO.writeVarInt(output, data.length);
+		output.write(data);
+		
+		ListTag<CompoundTag> tileEntities = chunk.getTileEntities();
+		DataTypeIO.writeVarInt(output, tileEntities.size());
+		for (CompoundTag each : tileEntities) {
+			int x = each.getInt("x") % 16;
+			int y = each.getInt("y");
+			int z = each.getInt("z") % 16;
+			output.writeByte((x << 4) | z);
+			output.writeShort(y);
+			Integer id = Registry.BLOCK_ENTITY_TYPE.getId(new NamespacedKey(chunk.getBlockStateAt(x, y, z).getString("Name")));
+			System.out.println(chunk.getBlockStateAt(x, y, z).toString());
+			System.out.println(each.toString());
+			DataTypeIO.writeVarInt(output, id == null ? -1 : id);
+			DataTypeIO.writeCompoundTag(output, each);
+		}
+		
+		output.writeBoolean(trustEdges);
+		DataTypeIO.writeVarInt(output, skyLightBitMasks.length);
+		for (long l : skyLightBitMasks) {
+			output.writeLong(l);
+		}
+		DataTypeIO.writeVarInt(output, blockLightBitMasks.length);
+		for (long l : blockLightBitMasks) {
+			output.writeLong(l);
+		}
+		DataTypeIO.writeVarInt(output, skyLightBitMasksEmpty.length);
+		for (long l : skyLightBitMasksEmpty) {
+			output.writeLong(l);
+		}
+		DataTypeIO.writeVarInt(output, blockLightBitMasksEmpty.length);
+		for (long l : blockLightBitMasksEmpty) {
+			output.writeLong(l);
+		}
+		
+		DataTypeIO.writeVarInt(output, skylightArrays.stream().mapToInt(each -> each == null ? 0 : 1).sum());
+		for (int i = skylightArrays.size() - 1; i >= 0; i--) {
+			Byte[] array = skylightArrays.get(i);
+			if (array != null) {
+				DataTypeIO.writeVarInt(output, 2048);
+				//System.out.println(Arrays.toString(ArrayUtils.toPrimitive(array)));
+				for (int u = 0; u < array.length; u++) {
+					output.writeByte(array[u]);
+				}
+			}
+		}
+		
+		DataTypeIO.writeVarInt(output, blocklightArrays.stream().mapToInt(each -> each == null ? 0 : 1).sum());
+		for (int i = blocklightArrays.size() - 1; i >= 0; i--) {
+			Byte[] array = blocklightArrays.get(i);
+			if (array != null) {
+				DataTypeIO.writeVarInt(output, 2048);
+				//System.out.println(Arrays.toString(ArrayUtils.toPrimitive(array)));
+				for (int u = 0; u < array.length; u++) {
+					output.writeByte(array[u]);
+				}
+			}
+		}
+		
+		return buffer.toByteArray();
+	}
+
+}

src/main/java/com/loohp/limbo/server/packets/PacketPlayOutLightUpdate.java

@@ -1,130 +0,0 @@
-package com.loohp.limbo.server.packets;
-
-import java.io.ByteArrayOutputStream;
-import java.io.DataOutputStream;
-import java.io.IOException;
-import java.util.BitSet;
-import java.util.List;
-
-import com.loohp.limbo.utils.DataTypeIO;
-
-public class PacketPlayOutLightUpdate extends PacketOut {
-
-	private int chunkX;
-	private int chunkZ;
-	private boolean trustEdges;
-	private long[] skyLightBitMasks;
-	private long[] blockLightBitMasks;
-	private long[] skyLightBitMasksEmpty;
-	private long[] blockLightBitMasksEmpty;
-	private List<Byte[]> skylightArrays;
-	private List<Byte[]> blocklightArrays;
-
-	public PacketPlayOutLightUpdate(int chunkX, int chunkZ, boolean trustEdges, List<Byte[]> skylightArrays, List<Byte[]> blocklightArrays) {
-		this.chunkX = chunkX;
-		this.chunkZ = chunkZ;
-		this.trustEdges = trustEdges;
-		this.skylightArrays = skylightArrays;
-		this.blocklightArrays = blocklightArrays;
-		
-		BitSet skyLightBitSet = new BitSet();
-		BitSet skyLightBitSetInverse = new BitSet();
-		for (int i = Math.min(17, skylightArrays.size() - 1); i >= 0; i--) {
-			skyLightBitSet.set(i, skylightArrays.get(i) != null);
-			skyLightBitSetInverse.set(i, skylightArrays.get(i) == null);
-		}
-		skyLightBitMasks = skyLightBitSet.toLongArray();
-		skyLightBitMasksEmpty = skyLightBitSetInverse.toLongArray();
-		
-		BitSet blockLightBitSet = new BitSet();
-		BitSet blockLightBitSetInverse = new BitSet();
-		for (int i = Math.min(17, blocklightArrays.size() - 1); i >= 0; i--) {
-			blockLightBitSet.set(i, blocklightArrays.get(i) != null);
-			blockLightBitSetInverse.set(i, blocklightArrays.get(i) == null);
-		}
-		blockLightBitMasks = blockLightBitSet.toLongArray();
-		blockLightBitMasksEmpty = blockLightBitSetInverse.toLongArray();
-	}
-
-	public int getChunkX() {
-		return chunkX;
-	}
-
-	public int getChunkZ() {
-		return chunkZ;
-	}
-
-	public boolean isTrustEdges() {
-		return trustEdges;
-	}
-
-	public long[] getSkyLightBitMasks() {
-		return skyLightBitMasks;
-	}
-
-	public long[] getBlockLightBitMasks() {
-		return blockLightBitMasks;
-	}
-
-	public List<Byte[]> getSkylightArrays() {
-		return skylightArrays;
-	}
-
-	public List<Byte[]> getBlocklightArrays() {
-		return blocklightArrays;
-	}
-
-	@Override
-	public byte[] serializePacket() throws IOException {
-		ByteArrayOutputStream buffer = new ByteArrayOutputStream();
-		
-		DataOutputStream output = new DataOutputStream(buffer);
-		output.writeByte(Packet.getPlayOut().get(getClass()));
-		DataTypeIO.writeVarInt(output, chunkX);
-		DataTypeIO.writeVarInt(output, chunkZ);
-		output.writeBoolean(trustEdges);
-		DataTypeIO.writeVarInt(output, skyLightBitMasks.length);
-		for (long l : skyLightBitMasks) {
-			output.writeLong(l);
-		}
-		DataTypeIO.writeVarInt(output, blockLightBitMasks.length);
-		for (long l : blockLightBitMasks) {
-			output.writeLong(l);
-		}
-		DataTypeIO.writeVarInt(output, skyLightBitMasksEmpty.length);
-		for (long l : skyLightBitMasksEmpty) {
-			output.writeLong(l);
-		}
-		DataTypeIO.writeVarInt(output, blockLightBitMasksEmpty.length);
-		for (long l : blockLightBitMasksEmpty) {
-			output.writeLong(l);
-		}
-		
-		DataTypeIO.writeVarInt(output, skylightArrays.stream().mapToInt(each -> each == null ? 0 : 1).sum());
-		for (int i = skylightArrays.size() - 1; i >= 0; i--) {
-			Byte[] array = skylightArrays.get(i);
-			if (array != null) {
-				DataTypeIO.writeVarInt(output, 2048);
-				//System.out.println(Arrays.toString(ArrayUtils.toPrimitive(array)));
-				for (int u = 0; u < array.length; u++) {
-					output.writeByte(array[u]);
-				}
-			}
-		}
-		
-		DataTypeIO.writeVarInt(output, blocklightArrays.stream().mapToInt(each -> each == null ? 0 : 1).sum());
-		for (int i = blocklightArrays.size() - 1; i >= 0; i--) {
-			Byte[] array = blocklightArrays.get(i);
-			if (array != null) {
-				DataTypeIO.writeVarInt(output, 2048);
-				//System.out.println(Arrays.toString(ArrayUtils.toPrimitive(array)));
-				for (int u = 0; u < array.length; u++) {
-					output.writeByte(array[u]);
-				}
-			}
-		}
-		
-		return buffer.toByteArray();
-	}
-
-}

src/main/java/com/loohp/limbo/server/packets/PacketPlayOutLogin.java

@@ -27,12 +27,13 @@ public class PacketPlayOutLogin extends PacketOut {
 	private long hashedSeed;
 	private byte maxPlayers;
 	private int viewDistance;
+	private int simulationDistance;
 	private boolean reducedDebugInfo;
 	private boolean enableRespawnScreen;
 	private boolean isDebug;
 	private boolean isFlat;
 
-	public PacketPlayOutLogin(int entityId, boolean isHardcore, GameMode gamemode, List<World> worlds, CompoundTag dimensionCodec, World world, long hashedSeed, byte maxPlayers, int viewDistance, boolean reducedDebugInfo, boolean enableRespawnScreen, boolean isDebug, boolean isFlat) {
+	public PacketPlayOutLogin(int entityId, boolean isHardcore, GameMode gamemode, List<World> worlds, CompoundTag dimensionCodec, World world, long hashedSeed, byte maxPlayers, int viewDistance, int simulationDistance, boolean reducedDebugInfo, boolean enableRespawnScreen, boolean isDebug, boolean isFlat) {
 		this.entityId = entityId;
 		this.isHardcore = isHardcore;
 		this.gamemode = gamemode;
@@ -43,6 +44,7 @@ public class PacketPlayOutLogin extends PacketOut {
 		this.hashedSeed = hashedSeed;
 		this.maxPlayers = maxPlayers;
 		this.viewDistance = viewDistance;
+		this.simulationDistance = simulationDistance;
 		this.reducedDebugInfo = reducedDebugInfo;
 		this.enableRespawnScreen = enableRespawnScreen;
 		this.isDebug = isDebug;
@@ -88,6 +90,10 @@ public class PacketPlayOutLogin extends PacketOut {
 	public int getViewDistance() {
 		return viewDistance;
 	}
+	
+	public int getSimulationDistance() {
+		return simulationDistance;
+	}
 
 	public boolean isReducedDebugInfo() {
 		return reducedDebugInfo;
@@ -133,6 +139,7 @@ public class PacketPlayOutLogin extends PacketOut {
 		output.writeLong(hashedSeed);
 		DataTypeIO.writeVarInt(output, maxPlayers);
 		DataTypeIO.writeVarInt(output, viewDistance);
+		DataTypeIO.writeVarInt(output, simulationDistance);
 		output.writeBoolean(reducedDebugInfo);
 		output.writeBoolean(enableRespawnScreen);
 		output.writeBoolean(isDebug);

src/main/java/com/loohp/limbo/server/packets/PacketPlayOutMapChunk.java

@@ -1,212 +0,0 @@
-package com.loohp.limbo.server.packets;
-
-import java.io.ByteArrayOutputStream;
-import java.io.DataOutputStream;
-import java.io.IOException;
-import java.util.ArrayList;
-import java.util.BitSet;
-import java.util.Iterator;
-import java.util.LinkedList;
-import java.util.List;
-
-import com.loohp.limbo.utils.BitsUtils;
-import com.loohp.limbo.utils.DataTypeIO;
-import com.loohp.limbo.world.Environment;
-import com.loohp.limbo.world.GeneratedBlockDataMappings;
-
-import net.querz.mca.Chunk;
-import net.querz.mca.Section;
-import net.querz.nbt.tag.CompoundTag;
-import net.querz.nbt.tag.ListTag;
-
-public class PacketPlayOutMapChunk extends PacketOut {
-
-	private int chunkX;
-	private int chunkZ;
-	private Chunk chunk;
-	private Environment environment;
-	
-	public PacketPlayOutMapChunk(int chunkX, int chunkZ, Chunk chunk, Environment environment) {
-		this.chunkX = chunkX;
-		this.chunkZ = chunkZ;
-		this.chunk = chunk;
-		this.environment = environment;
-	}
-	
-	@Deprecated
-	public PacketPlayOutMapChunk(int chunkX, int chunkZ, Chunk chunk) {
-		this(chunkZ, chunkZ, chunk, Environment.NORMAL);
-	}
-
-	public Chunk getChunk() {
-		return chunk;
-	}
-	
-	public int getChunkX() {
-		return chunkX;
-	}
-
-	public int getChunkZ() {
-		return chunkZ;
-	}
-	
-	public Environment getEnvironment() {
-		return environment;
-	}
-
-	@Override
-	public byte[] serializePacket() throws IOException {
-		ByteArrayOutputStream buffer = new ByteArrayOutputStream();
-		
-		DataOutputStream output = new DataOutputStream(buffer);
-		output.writeByte(Packet.getPlayOut().get(getClass()));
-		
-		output.writeInt(chunkX);
-		output.writeInt(chunkZ);
-		BitSet chunkPresent = new BitSet();
-		for (int i = 0; i < 16; i++) {
-			Section section = chunk.getSection(i);
-			chunkPresent.set(i, section != null);
-		}
-		long[] bitmasks = chunkPresent.toLongArray();
-		DataTypeIO.writeVarInt(output, bitmasks.length);
-		for (long l : bitmasks) {
-			output.writeLong(l);
-		}
-		DataTypeIO.writeCompoundTag(output, chunk.getHeightMaps());
-		
-		DataTypeIO.writeVarInt(output, 1024);
-		int biome;
-		if (environment.equals(Environment.END)) {
-			biome = 9; //the_end
-		} else if (environment.equals(Environment.NETHER)) {
-			biome = 8; //nether_waste
-		} else if (environment.equals(Environment.NORMAL)) {
-			biome = 1; //plains
-		} else {
-			biome = 1; //plains
-		}
-		for (int i = 0; i < 1024; i++) {
-			DataTypeIO.writeVarInt(output, biome);
-		}
-		
-		ByteArrayOutputStream dataBuffer = new ByteArrayOutputStream();
-		DataOutputStream dataOut = new DataOutputStream(dataBuffer);
-		for (int i = 0; i < 16; i++) {
-			Section section = chunk.getSection(i);
-			if (section != null) {
-				int counter = 0;
-				for (int x = 0; x < 16; x++) {
-					for (int z = 0; z < 16; z++) {
-						for (int y = 0; y < 16; y++) {
-							CompoundTag tag = section.getBlockStateAt(x, y, z);
-							if (tag != null && !tag.getString("Name").equals("minecraft:air")) {
-								counter++;
-							}
-						}
-					}
-				}				
-				dataOut.writeShort(counter);
-
-				int newBits = 32 - Integer.numberOfLeadingZeros(section.getPalette().size() - 1);
-				newBits = Math.max(newBits, 4);
-				//Limbo.getInstance().getConsole().sendMessage(i + " " + newBits);
-				if (newBits <= 8) {
-					/*
-					if (newBits == 4) {
-						dataOut.writeByte(4);
-					} else {
-						newBits = 8;
-						ChunkDataUtils.adjustBlockStateBits(newBits, section, chunk.getDataVersion());
-						dataOut.writeByte(8);
-					}
-					*/
-					dataOut.writeByte(newBits);
-					
-					DataTypeIO.writeVarInt(dataOut, section.getPalette().size());
-					//Limbo.getInstance().getConsole().sendMessage(section.getPalette().size());
-					Iterator<CompoundTag> itr1 = section.getPalette().iterator();
-					//Limbo.getInstance().getConsole().sendMessage("Nonnull -> " + i + " " + newBits);
-					while (itr1.hasNext()) {
-						CompoundTag tag = itr1.next();
-						DataTypeIO.writeVarInt(dataOut, GeneratedBlockDataMappings.getGlobalPaletteIDFromState(tag));
-						//Limbo.getInstance().getConsole().sendMessage(tag + " -> " + GeneratedDataUtils.getGlobalPaletteIDFromState(tag));
-					}
-					
-					BitSet bits = BitSet.valueOf(section.getBlockStates());
-					int shift = 64 % newBits;
-					int longsNeeded = (int) Math.ceil(4096 / (double) (64 / newBits));
-					for (int u = 64; u <= bits.length(); u += 64) {
-						bits = BitsUtils.shiftAfter(bits, u - shift, shift);
-					}
-					
-					long[] formattedLongs = bits.toLongArray(); 
-					//Limbo.getInstance().getConsole().sendMessage(longsNeeded + "");
-					
-					DataTypeIO.writeVarInt(dataOut, longsNeeded);
-					for (int u = 0; u < longsNeeded; u++) {
-						if (u < formattedLongs.length) {
-							dataOut.writeLong(formattedLongs[u]);
-						} else {
-							dataOut.writeLong(0);
-						}
-						//Limbo.getInstance().getConsole().sendMessage(Arrays.toString(section.getBlockStates()));
-					}
-				} else {
-					try {
-					dataOut.writeByte(15);
-					section.getBlockStates();
-					int longsNeeded = 1024;
-					List<Integer> list = new LinkedList<>();
-					for (int y = 0; y < 16; y++) {
-						for (int z = 0; z < 16; z++) {
-							for (int x = 0; x < 16; x++) {
-								list.add(GeneratedBlockDataMappings.getGlobalPaletteIDFromState(section.getBlockStateAt(x, y, z)));
-							}
-						}
-					}
-					List<Long> globalLongs = new ArrayList<>();
-					long currentLong = 0;
-					int pos = 0;
-					int u = 0;
-					while (pos < longsNeeded) {
-						if (u == 3) {
-							globalLongs.add(currentLong);
-							currentLong = 0;
-							u = 0;
-							pos++;
-						} else {
-							u++;
-						}
-						int id = list.isEmpty() ? 0 : list.remove(0);
-						currentLong = currentLong << 15;
-						currentLong |= (long) id;
-					}
-					DataTypeIO.writeVarInt(dataOut, longsNeeded);
-					for (int j = 0; j < longsNeeded; j++) {
-						if (j < globalLongs.size()) {
-							dataOut.writeLong(globalLongs.get(j));
-						} else {
-							dataOut.writeLong(0);
-						}
-					}
-					} catch (Exception e) {
-						e.printStackTrace();
-					}
-				}
-			}
-		}
-		byte[] data = dataBuffer.toByteArray();
-		DataTypeIO.writeVarInt(output, data.length);
-		output.write(data);
-		
-		ListTag<CompoundTag> tileEntities = chunk.getTileEntities();
-		DataTypeIO.writeVarInt(output, tileEntities.size());
-		for (CompoundTag each : tileEntities) {
-			DataTypeIO.writeCompoundTag(output, each);
-		}
-		
-		return buffer.toByteArray();
-	}
-
-}

src/main/resources/mapping.json

@@ -28,9 +28,8 @@
     "PacketPlayOutSpawnPosition": "0x4B",
     "PacketPlayOutChat": "0x0F",
     "PacketPlayOutPlayerAbilities": "0x32",
-    "PacketPlayOutMapChunk": "0x22",
+    "ClientboundLevelChunkWithLightPacket": "0x22",
     "PacketPlayOutUnloadChunk": "0x1D",
-    "PacketPlayOutLightUpdate": "0x25",
     "PacketPlayOutKeepAlive": "0x21",
     "PacketPlayOutPlayerInfo": "0x36",
     "PacketPlayOutUpdateViewPosition": "0x49",
@@ -45,7 +44,7 @@
     "PacketPlayOutSpawnEntity": "0x00",
     "PacketPlayOutSpawnEntityLiving": "0x02",
     "PacketPlayOutHeldItemChange": "0x48",
-    "PacketPlayOutPlayerListHeaderFooter": "0x5E",
+    "PacketPlayOutPlayerListHeaderFooter": "0x5F",
     "PacketPlayOutResourcePackSend": "0x3C"
   },
   "StatusIn": {