Bump development to 1.17, Added a few more light emitting blocks, Improved PlayerChatEvent formatting

pom.xml

@@ -5,7 +5,7 @@
 	<groupId>com.loohp</groupId>
 	<artifactId>Limbo</artifactId>
 	<name>Limbo</name>
-	<version>0.4.5-ALPHA</version>
+	<version>0.5.0-ALPHA</version>
 	
 	<description>Standalone Limbo Minecraft Server.</description>
 	<url>https://github.com/LOOHP/Limbo</url>
@@ -87,7 +87,7 @@
 				</executions>
 			</plugin>
 		</plugins>
-		<finalName>${project.artifactId}-${project.version}-1.16.5</finalName>
+		<finalName>${project.artifactId}-${project.version}-1.17</finalName>
 	</build>
 
 	<profiles>

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

@@ -108,8 +108,8 @@ public class Limbo {
 	
 	//===========================
 	
-	public final String serverImplementationVersion = "1.16.5";
+	public final String serverImplementationVersion = "1.17";
-	public final int serverImplmentationProtocol = 754;
+	public final int serverImplmentationProtocol = 755;
 	public final String limboImplementationVersion;
 	
 	private AtomicBoolean isRunning;

src/main/java/com/loohp/limbo/entity/ArmorStand.java

@@ -11,25 +11,25 @@ import com.loohp.limbo.world.World;
 
 public class ArmorStand extends LivingEntity {
 	
-	@WatchableField(MetadataIndex = 14, WatchableObjectType = WatchableObjectType.BYTE, IsBitmask = true, Bitmask = 0x01) 
+	@WatchableField(MetadataIndex = 15, WatchableObjectType = WatchableObjectType.BYTE, IsBitmask = true, Bitmask = 0x01) 
 	protected boolean small = false;
-	@WatchableField(MetadataIndex = 14, WatchableObjectType = WatchableObjectType.BYTE, IsBitmask = true, Bitmask = 0x04) 
+	@WatchableField(MetadataIndex = 15, WatchableObjectType = WatchableObjectType.BYTE, IsBitmask = true, Bitmask = 0x04) 
 	protected boolean arms = false;
-	@WatchableField(MetadataIndex = 14, WatchableObjectType = WatchableObjectType.BYTE, IsBitmask = true, Bitmask = 0x08) 
+	@WatchableField(MetadataIndex = 15, WatchableObjectType = WatchableObjectType.BYTE, IsBitmask = true, Bitmask = 0x08) 
 	protected boolean noBasePlate = false;
-	@WatchableField(MetadataIndex = 14, WatchableObjectType = WatchableObjectType.BYTE, IsBitmask = true, Bitmask = 0x10) 
+	@WatchableField(MetadataIndex = 15, WatchableObjectType = WatchableObjectType.BYTE, IsBitmask = true, Bitmask = 0x10) 
 	protected boolean marker = false;
-	@WatchableField(MetadataIndex = 15, WatchableObjectType = WatchableObjectType.ROTATION) 
-	protected Rotation3f headRotation = new Rotation3f(0.0, 0.0, 0.0);
 	@WatchableField(MetadataIndex = 16, WatchableObjectType = WatchableObjectType.ROTATION) 
-	protected Rotation3f bodyRotation = new Rotation3f(0.0, 0.0, 0.0);
+	protected Rotation3f headRotation = new Rotation3f(0.0, 0.0, 0.0);
 	@WatchableField(MetadataIndex = 17, WatchableObjectType = WatchableObjectType.ROTATION) 
-	protected Rotation3f leftArmRotation = new Rotation3f(-10.0, 0.0, -10.0);
+	protected Rotation3f bodyRotation = new Rotation3f(0.0, 0.0, 0.0);
 	@WatchableField(MetadataIndex = 18, WatchableObjectType = WatchableObjectType.ROTATION) 
-	protected Rotation3f rightArmRotation = new Rotation3f(-15.0, 0.0, 10.0);
+	protected Rotation3f leftArmRotation = new Rotation3f(-10.0, 0.0, -10.0);
 	@WatchableField(MetadataIndex = 19, WatchableObjectType = WatchableObjectType.ROTATION) 
-	protected Rotation3f leftLegRotation = new Rotation3f(-1.0, 0.0, -1.0);
+	protected Rotation3f rightArmRotation = new Rotation3f(-15.0, 0.0, 10.0);
 	@WatchableField(MetadataIndex = 20, WatchableObjectType = WatchableObjectType.ROTATION) 
+	protected Rotation3f leftLegRotation = new Rotation3f(-1.0, 0.0, -1.0);
+	@WatchableField(MetadataIndex = 21, WatchableObjectType = WatchableObjectType.ROTATION) 
 	protected Rotation3f rightLegRotation = new Rotation3f(1.0, 0.0, 1.0);
 	
 	public ArmorStand(int entityId, UUID uuid, World world, double x, double y, double z, float yaw, float pitch) {

src/main/java/com/loohp/limbo/entity/Entity.java

@@ -41,6 +41,8 @@ public abstract class Entity {
 	protected boolean noGravity = false;
 	@WatchableField(MetadataIndex = 6, WatchableObjectType = WatchableObjectType.POSE) 
 	protected Pose pose = Pose.STANDING;
+	@WatchableField(MetadataIndex = 7, WatchableObjectType = WatchableObjectType.VARINT)
+	protected int frozenTicks = 0;
 	
 	protected final EntityType type;
 	

src/main/java/com/loohp/limbo/entity/LivingEntity.java

@@ -12,23 +12,23 @@ import com.loohp.limbo.world.World;
 
 public abstract class LivingEntity extends Entity {
 	
-	@WatchableField(MetadataIndex = 7, WatchableObjectType = WatchableObjectType.BYTE, IsBitmask = true, Bitmask = 0x01) 
+	@WatchableField(MetadataIndex = 8, WatchableObjectType = WatchableObjectType.BYTE, IsBitmask = true, Bitmask = 0x01) 
 	protected boolean handActive = false;
-	@WatchableField(MetadataIndex = 7, WatchableObjectType = WatchableObjectType.BYTE, IsBitmask = true, Bitmask = 0x02) 
+	@WatchableField(MetadataIndex = 8, WatchableObjectType = WatchableObjectType.BYTE, IsBitmask = true, Bitmask = 0x02) 
 	protected boolean activeHand = false; //false = main hand, true = off hand
-	@WatchableField(MetadataIndex = 7, WatchableObjectType = WatchableObjectType.BYTE, IsBitmask = true, Bitmask = 0x04) 
+	@WatchableField(MetadataIndex = 8, WatchableObjectType = WatchableObjectType.BYTE, IsBitmask = true, Bitmask = 0x04) 
 	protected boolean inRiptideSpinAttack = false;
-	@WatchableField(MetadataIndex = 8, WatchableObjectType = WatchableObjectType.FLOAT) 
+	@WatchableField(MetadataIndex = 9, WatchableObjectType = WatchableObjectType.FLOAT) 
 	protected float health = 1.0F;
-	@WatchableField(MetadataIndex = 9, WatchableObjectType = WatchableObjectType.VARINT) 
+	@WatchableField(MetadataIndex = 10, WatchableObjectType = WatchableObjectType.VARINT) 
 	protected int potionEffectColor = 0;
-	@WatchableField(MetadataIndex = 10, WatchableObjectType = WatchableObjectType.BOOLEAN) 
+	@WatchableField(MetadataIndex = 11, WatchableObjectType = WatchableObjectType.BOOLEAN) 
 	protected boolean potionEffectAmbient = false;
-	@WatchableField(MetadataIndex = 11, WatchableObjectType = WatchableObjectType.VARINT) 
-	protected int arrowsInEntity = 0;
 	@WatchableField(MetadataIndex = 12, WatchableObjectType = WatchableObjectType.VARINT) 
+	protected int arrowsInEntity = 0;
+	@WatchableField(MetadataIndex = 13, WatchableObjectType = WatchableObjectType.VARINT) 
 	protected int absorption = 0;
-	@WatchableField(MetadataIndex = 13, WatchableObjectType = WatchableObjectType.POSITION, IsOptional = true) 
+	@WatchableField(MetadataIndex = 14, WatchableObjectType = WatchableObjectType.POSITION, IsOptional = true) 
 	protected BlockPosition sleepingLocation = null;
 
 	public LivingEntity(EntityType type, int entityId, UUID uuid, World world, double x, double y, double z, float yaw, float pitch) {

src/main/java/com/loohp/limbo/events/player/PlayerChatEvent.java

@@ -5,23 +5,23 @@ import com.loohp.limbo.player.Player;
 
 public class PlayerChatEvent extends PlayerEvent implements Cancellable {
 
-	private String prefix;
+	private String format;
 	private String message;
 	private boolean cancelled;
 
-	public PlayerChatEvent(Player player, String prefix, String message, boolean cancelled) {
+	public PlayerChatEvent(Player player, String format, String message, boolean cancelled) {
 		super(player);
-		this.prefix = prefix;
+		this.format = format;
 		this.message = message;
 		this.cancelled = cancelled;
 	}
 
-	public String getPrefix() {
+	public String getFormat() {
-		return prefix;
+		return format;
 	}
 
-	public void setPrefix(String prefix) {
+	public void setFormat(String format) {
-		this.prefix = prefix;
+		this.format = format;
 	}
 
 	public String getMessage() {

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

@@ -35,17 +35,17 @@ public class Player extends LivingEntity implements CommandSender {
 	protected DataWatcher watcher;
 	protected byte selectedSlot;
 	
-	@WatchableField(MetadataIndex = 14, WatchableObjectType = WatchableObjectType.FLOAT) 
+	@WatchableField(MetadataIndex = 15, WatchableObjectType = WatchableObjectType.FLOAT) 
 	protected float additionalHearts = 0.0F;
-	@WatchableField(MetadataIndex = 15, WatchableObjectType = WatchableObjectType.VARINT) 
+	@WatchableField(MetadataIndex = 16, WatchableObjectType = WatchableObjectType.VARINT) 
 	protected int score = 0;
-	@WatchableField(MetadataIndex = 16, WatchableObjectType = WatchableObjectType.BYTE) 
-	protected byte skinLayers = 0;
 	@WatchableField(MetadataIndex = 17, WatchableObjectType = WatchableObjectType.BYTE) 
+	protected byte skinLayers = 0;
+	@WatchableField(MetadataIndex = 18, WatchableObjectType = WatchableObjectType.BYTE) 
 	protected byte mainHand = 1;
-	//@WatchableField(MetadataIndex = 18, WatchableObjectType = WatchableObjectType.NBT) 
-	//protected Entity leftShoulder = null;
 	//@WatchableField(MetadataIndex = 19, WatchableObjectType = WatchableObjectType.NBT) 
+	//protected Entity leftShoulder = null;
+	//@WatchableField(MetadataIndex = 20, WatchableObjectType = WatchableObjectType.NBT) 
 	//protected Entity rightShoulder = null;
 	
 	public Player(ClientConnection clientConnection, String username, UUID uuid, int entityId, Location location, PlayerInteractManager playerInteractManager) throws IllegalArgumentException, IllegalAccessException {
@@ -182,7 +182,7 @@ public class Player extends LivingEntity implements CommandSender {
 					PacketPlayOutRespawn respawn = new PacketPlayOutRespawn(location.getWorld(), Limbo.getInstance().getDimensionRegistry().getCodec(), 0, gamemode, false, false, true);
 					clientConnection.sendPacket(respawn);
 				}
-				PacketPlayOutPositionAndLook positionLook = new PacketPlayOutPositionAndLook(location.getX(), location.getY(), location.getZ(), location.getYaw(), location.getPitch(), 1);
+				PacketPlayOutPositionAndLook positionLook = new PacketPlayOutPositionAndLook(location.getX(), location.getY(), location.getZ(), location.getYaw(), location.getPitch(), 1, false);
 				clientConnection.sendPacket(positionLook);
 			} catch (IOException e) {
 				e.printStackTrace();
@@ -247,10 +247,10 @@ public class Player extends LivingEntity implements CommandSender {
 	}
 	
 	public void chat(String message) {
-		String prefix = "<" + username + "> ";
+		String format = "<%name%> %message%";
-		PlayerChatEvent event = (PlayerChatEvent) Limbo.getInstance().getEventsManager().callEvent(new PlayerChatEvent(this, prefix, message, false));
+		PlayerChatEvent event = (PlayerChatEvent) Limbo.getInstance().getEventsManager().callEvent(new PlayerChatEvent(this, format, message, false));
 		if (!event.isCancelled()) {
-			String chat = event.getPrefix() + event.getMessage();
+			String chat = event.getFormat().replace("%name%", username).replace("%message%", event.getMessage());
 			Limbo.getInstance().getConsole().sendMessage(chat);
 			for (Player each : Limbo.getInstance().getPlayers()) {
 				each.sendMessage(chat, uuid);

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

@@ -77,8 +77,10 @@ public class PlayerInteractManager {
 				ids.add(entity.getEntityId());
 			}
 		}
-		PacketPlayOutEntityDestroy packet = new PacketPlayOutEntityDestroy(ids.stream().mapToInt(each -> each).toArray());
+		for (int id : ids) {
-		player.clientConnection.sendPacket(packet);
+			PacketPlayOutEntityDestroy packet = new PacketPlayOutEntityDestroy(id);
+			player.clientConnection.sendPacket(packet);
+		}
 		
 		entities = entitiesInRange;
 		

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

@@ -311,8 +311,6 @@ public class ClientConnection extends Thread {
     			sendPacket(join);
     			Limbo.getInstance().getUnsafe().setPlayerGameModeSilently(player, properties.getDefaultGamemode());
     			
-				player.playerInteractManager.update();
-				
 				SkinResponse skinresponce = isBungeecord && bungeeSkin != null ? bungeeSkin : MojangAPIUtils.getSkinFromMojangServer(player.getName());
 				PlayerSkinProperty skin = skinresponce != null ? new PlayerSkinProperty(skinresponce.getSkin(), skinresponce.getSignature()) : null;
 				PacketPlayOutPlayerInfo info = new PacketPlayOutPlayerInfo(PlayerInfoAction.ADD_PLAYER, player.getUniqueId(), new PlayerInfoData.PlayerInfoDataAddPlayer(player.getName(), Optional.ofNullable(skin), properties.getDefaultGamemode(), 0, false, Optional.empty()));
@@ -336,10 +334,12 @@ public class ClientConnection extends Thread {
 					sendPacket(declare);
 				}
 				
-				PacketPlayOutSpawnPosition spawnPos = new PacketPlayOutSpawnPosition(BlockPosition.from(worldSpawn));
+				player.playerInteractManager.update();
+				
+				PacketPlayOutSpawnPosition spawnPos = new PacketPlayOutSpawnPosition(BlockPosition.from(worldSpawn), worldSpawn.getPitch());
 				sendPacket(spawnPos);
 				
-				PacketPlayOutPositionAndLook positionLook = new PacketPlayOutPositionAndLook(worldSpawn.getX(), worldSpawn.getY(), worldSpawn.getZ(), worldSpawn.getYaw(), worldSpawn.getPitch(), 1);
+				PacketPlayOutPositionAndLook positionLook = new PacketPlayOutPositionAndLook(worldSpawn.getX(), worldSpawn.getY(), worldSpawn.getZ(), worldSpawn.getYaw(), worldSpawn.getPitch(), 1, false);
 				Limbo.getInstance().getUnsafe().setPlayerLocationSilently(player, new Location(world, worldSpawn.getX(), worldSpawn.getY(), worldSpawn.getZ(), worldSpawn.getYaw(), worldSpawn.getPitch()));
 				sendPacket(positionLook);
 				
@@ -359,14 +359,14 @@ public class ClientConnection extends Thread {
 							Location originalTo = event.getTo().clone();
 							if (event.isCancelled()) {
 								Location returnTo = event.getFrom();
-								PacketPlayOutPositionAndLook cancel = new PacketPlayOutPositionAndLook(returnTo.getX(), returnTo.getY(), returnTo.getZ(), returnTo.getYaw(), returnTo.getPitch(), 1);
+								PacketPlayOutPositionAndLook cancel = new PacketPlayOutPositionAndLook(returnTo.getX(), returnTo.getY(), returnTo.getZ(), returnTo.getYaw(), returnTo.getPitch(), 1, false);
 								sendPacket(cancel);
 							} else {
 								Location to = event.getTo();
 								Limbo.getInstance().getUnsafe().setPlayerLocationSilently(player, to);
 								// If an event handler used setTo, let's make sure we tell the player about it.
 								if (!originalTo.equals(to)) {
-									PacketPlayOutPositionAndLook pos = new PacketPlayOutPositionAndLook(to.getX(), to.getY(), to.getZ(), to.getYaw(), to.getPitch(), 1);
+									PacketPlayOutPositionAndLook pos = new PacketPlayOutPositionAndLook(to.getX(), to.getY(), to.getZ(), to.getYaw(), to.getPitch(), 1, false);
 									sendPacket(pos);
 								}
 								PacketPlayOutUpdateViewPosition response = new PacketPlayOutUpdateViewPosition((int) player.getLocation().getX() >> 4, (int) player.getLocation().getZ() >> 4);

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

@@ -8,14 +8,14 @@ import com.loohp.limbo.utils.DataTypeIO;
 
 public class PacketPlayOutEntityDestroy extends PacketOut {
 	
-	private int[] entityIds;
+	private int entityId;
 	
-	public PacketPlayOutEntityDestroy(int... entityIds) {
+	public PacketPlayOutEntityDestroy(int entityId) {
-		this.entityIds = entityIds;
+		this.entityId = entityId;
 	}
 
-	public int[] getEntityIds() {
+	public int getEntityId() {
-		return entityIds;
+		return entityId;
 	}
 	
 	@Override
@@ -24,10 +24,7 @@ public class PacketPlayOutEntityDestroy extends PacketOut {
 		
 		DataOutputStream output = new DataOutputStream(buffer);
 		output.writeByte(Packet.getPlayOut().get(getClass()));
-		DataTypeIO.writeVarInt(output, entityIds.length);
+		DataTypeIO.writeVarInt(output, entityId);
-		for (int id : entityIds) {
-			DataTypeIO.writeVarInt(output, id);
-		}
 		
 		return buffer.toByteArray();
 	}

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

@@ -3,6 +3,7 @@ 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;
@@ -12,8 +13,10 @@ public class PacketPlayOutLightUpdate extends PacketOut {
 	private int chunkX;
 	private int chunkZ;
 	private boolean trustEdges;
-	private int skyLightBitMask;
+	private long[] skyLightBitMasks;
-	private int blockLightBitMask;
+	private long[] blockLightBitMasks;
+	private long[] skyLightBitMasksEmpty;
+	private long[] blockLightBitMasksEmpty;
 	private List<Byte[]> skylightArrays;
 	private List<Byte[]> blocklightArrays;
 
@@ -24,21 +27,23 @@ public class PacketPlayOutLightUpdate extends PacketOut {
 		this.skylightArrays = skylightArrays;
 		this.blocklightArrays = blocklightArrays;
 		
-		skyLightBitMask = 0;
+		BitSet skyLightBitSet = new BitSet();
+		BitSet skyLightBitSetInverse = new BitSet();
 		for (int i = Math.min(17, skylightArrays.size() - 1); i >= 0; i--) {
-			skyLightBitMask = skyLightBitMask >> 1;
+			skyLightBitSet.set(i, skylightArrays.get(i) != null);
-			if (skylightArrays.get(i) != null) {
+			skyLightBitSetInverse.set(i, skylightArrays.get(i) == null);
-				skyLightBitMask |= 131072;
-			}
 		}
+		skyLightBitMasks = skyLightBitSet.toLongArray();
+		skyLightBitMasksEmpty = skyLightBitSetInverse.toLongArray();
 		
-		blockLightBitMask = 0;
+		BitSet blockLightBitSet = new BitSet();
+		BitSet blockLightBitSetInverse = new BitSet();
 		for (int i = Math.min(17, blocklightArrays.size() - 1); i >= 0; i--) {
-			blockLightBitMask = blockLightBitMask >> 1;
+			blockLightBitSet.set(i, blocklightArrays.get(i) != null);
-			if (blocklightArrays.get(i) != null) {
+			blockLightBitSetInverse.set(i, blocklightArrays.get(i) == null);
-				blockLightBitMask |= 131072;
-			}
 		}
+		blockLightBitMasks = blockLightBitSet.toLongArray();
+		blockLightBitMasksEmpty = blockLightBitSetInverse.toLongArray();
 	}
 
 	public int getChunkX() {
@@ -53,12 +58,12 @@ public class PacketPlayOutLightUpdate extends PacketOut {
 		return trustEdges;
 	}
 
-	public int getSkyLightBitMask() {
+	public long[] getSkyLightBitMasks() {
-		return skyLightBitMask;
+		return skyLightBitMasks;
 	}
 
-	public int getBlockLightBitMask() {
+	public long[] getBlockLightBitMasks() {
-		return blockLightBitMask;
+		return blockLightBitMasks;
 	}
 
 	public List<Byte[]> getSkylightArrays() {
@@ -78,11 +83,24 @@ public class PacketPlayOutLightUpdate extends PacketOut {
 		DataTypeIO.writeVarInt(output, chunkX);
 		DataTypeIO.writeVarInt(output, chunkZ);
 		output.writeBoolean(trustEdges);
-		DataTypeIO.writeVarInt(output, skyLightBitMask);
+		DataTypeIO.writeVarInt(output, skyLightBitMasks.length);
-		DataTypeIO.writeVarInt(output, blockLightBitMask);
+		for (long l : skyLightBitMasks) {
-		DataTypeIO.writeVarInt(output, ~skyLightBitMask & 262143);
+			output.writeLong(l);
-		DataTypeIO.writeVarInt(output, ~blockLightBitMask & 262143);
+		}
+		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) {
@@ -94,6 +112,7 @@ public class PacketPlayOutLightUpdate extends PacketOut {
 			}
 		}
 		
+		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) {

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

@@ -31,10 +31,7 @@ public class PacketPlayOutLogin extends PacketOut {
 	private boolean isDebug;
 	private boolean isFlat;
 
-	public PacketPlayOutLogin(int entityId, boolean isHardcore, GameMode gamemode,
+	public PacketPlayOutLogin(int entityId, boolean isHardcore, GameMode gamemode, String[] worldsNames, CompoundTag dimensionCodec, World world, long hashedSeed, byte maxPlayers, int viewDistance, boolean reducedDebugInfo, boolean enableRespawnScreen, boolean isDebug, boolean isFlat) {
-			String[] worldsNames, CompoundTag dimensionCodec, World world, long hashedSeed,
-			byte maxPlayers, int viewDistance, boolean reducedDebugInfo, boolean enableRespawnScreen, boolean isDebug,
-			boolean isFlat) {
 		this.entityId = entityId;
 		this.isHardcore = isHardcore;
 		this.gamemode = gamemode;
@@ -130,7 +127,7 @@ public class PacketPlayOutLogin extends PacketOut {
 				break;
 			}
 		}
-		DataTypeIO.writeCompoundTag(output, tag != null ? tag : list.get(0));
+		DataTypeIO.writeCompoundTag(output, tag != null ? tag : list.get(0).getCompoundTag("element"));
 		DataTypeIO.writeString(output, worldName, StandardCharsets.UTF_8);
 		output.writeLong(hashedSeed);
 		DataTypeIO.writeVarInt(output, maxPlayers);

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

@@ -63,15 +63,16 @@ public class PacketPlayOutMapChunk extends PacketOut {
 		
 		output.writeInt(chunkX);
 		output.writeInt(chunkZ);
-		output.writeBoolean(true);
+		BitSet chunkPresent = new BitSet();
-		int bitmask = 0;
 		for (int i = 0; i < 16; i++) {
 			Section section = chunk.getSection(i);
-			if (section != null) {
+			chunkPresent.set(i, section != null);
-				bitmask = bitmask | (int) Math.pow(2, i);
+		}
-			}
+		long[] bitmasks = chunkPresent.toLongArray();
+		DataTypeIO.writeVarInt(output, bitmasks.length);
+		for (long l : bitmasks) {
+			output.writeLong(l);
 		}
-		DataTypeIO.writeVarInt(output, bitmask);
 		DataTypeIO.writeCompoundTag(output, chunk.getHeightMaps());
 		
 		DataTypeIO.writeVarInt(output, 1024);

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

@@ -36,8 +36,9 @@ public class PacketPlayOutPositionAndLook extends PacketOut {
     private float pitch;
     private Set<PlayerTeleportFlags> flags;
     private int teleportId;
+    private boolean dismountVehicle;
 	
-	public PacketPlayOutPositionAndLook(double x, double y, double z, float yaw, float pitch, int teleportId, PlayerTeleportFlags... flags) {
+	public PacketPlayOutPositionAndLook(double x, double y, double z, float yaw, float pitch, int teleportId, boolean dismountVehicle, PlayerTeleportFlags... flags) {
 		this.x = x;
 		this.y = y;
 		this.z = z;
@@ -45,6 +46,7 @@ public class PacketPlayOutPositionAndLook extends PacketOut {
 		this.pitch = pitch;
 		this.teleportId = teleportId;
 		this.flags = Arrays.asList(flags).stream().collect(Collectors.toSet());
+		this.dismountVehicle = dismountVehicle;
 	}
 
 	public double getX() {
@@ -75,6 +77,10 @@ public class PacketPlayOutPositionAndLook extends PacketOut {
 		return teleportId;
 	}
 	
+	public boolean isDismountVehicle() {
+		return dismountVehicle;
+	}
+	
 	@Override
 	public byte[] serializePacket() throws IOException {
 		ByteArrayOutputStream buffer = new ByteArrayOutputStream();
@@ -94,6 +100,7 @@ public class PacketPlayOutPositionAndLook extends PacketOut {
 		
 		output.writeByte(flag);
 		DataTypeIO.writeVarInt(output, teleportId);
+		output.writeBoolean(dismountVehicle);
 		
 		return buffer.toByteArray();
 	}

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

@@ -10,21 +10,28 @@ import com.loohp.limbo.world.BlockPosition;
 public class PacketPlayOutSpawnPosition extends PacketOut {
 	
 	private BlockPosition position;
+	private float angle;
 	
-	public PacketPlayOutSpawnPosition(BlockPosition position) {
+	public PacketPlayOutSpawnPosition(BlockPosition position, float angle) {
 		this.position = position;
+		this.angle = angle;
 	}
 
 	public BlockPosition getPosition() {
 		return position;
 	}
 	
+	public float getAngle() {
+		return angle;
+	}
+	
 	public byte[] serializePacket() throws IOException {
 		ByteArrayOutputStream buffer = new ByteArrayOutputStream();
 		
 		DataOutputStream output = new DataOutputStream(buffer);
 		output.writeByte(Packet.getPlayOut().get(getClass()));
 		DataTypeIO.writeBlockPosition(output, position);
+		output.writeFloat(angle);
 		
 		return buffer.toByteArray();
 	}

src/main/java/com/loohp/limbo/world/LightEngine.java

@@ -10,15 +10,15 @@ public abstract class LightEngine {
 	static {
 		blockLightLevelMapping.put("minecraft:beacon", (byte) 15);
 		blockLightLevelMapping.put("minecraft:torch", (byte) 15);
-		blockLightLevelMapping.put("minecraft:beacon", (byte) 15);
+		blockLightLevelMapping.put("minecraft:sea_lantern", (byte) 15);
-		blockLightLevelMapping.put("minecraft:beacon", (byte) 15);
+		blockLightLevelMapping.put("minecraft:end_rod", (byte) 15);
-		blockLightLevelMapping.put("minecraft:beacon", (byte) 15);
+		blockLightLevelMapping.put("minecraft:fire", (byte) 15);
-		blockLightLevelMapping.put("minecraft:beacon", (byte) 15);
+		blockLightLevelMapping.put("minecraft:lava", (byte) 15);
-		blockLightLevelMapping.put("minecraft:beacon", (byte) 15);
+		blockLightLevelMapping.put("minecraft:lantern", (byte) 15);
-		blockLightLevelMapping.put("minecraft:beacon", (byte) 15);
+		blockLightLevelMapping.put("minecraft:soul_lantern", (byte) 10);
-		blockLightLevelMapping.put("minecraft:beacon", (byte) 15);
+		blockLightLevelMapping.put("minecraft:glowstone", (byte) 15);
-		blockLightLevelMapping.put("minecraft:beacon", (byte) 15);
+		blockLightLevelMapping.put("minecraft:campfire", (byte) 15);
-		blockLightLevelMapping.put("minecraft:beacon", (byte) 15);
+		blockLightLevelMapping.put("minecraft:soul_campfire", (byte) 10);
 		blockLightLevelMapping.put("minecraft:beacon", (byte) 15);
 		blockLightLevelMapping.put("minecraft:beacon", (byte) 15);
 		blockLightLevelMapping.put("minecraft:beacon", (byte) 15);

src/main/resources/dimension_registry.json

@@ -69,13 +69,21 @@
                       "type": "DoubleTag",
                       "value": 1
                     },
-                    "ultrawarm": {
+                    "min_y": {
-                      "type": "ByteTag",
+                      "type": "IntTag",
                       "value": 0
                     },
                     "has_ceiling": {
                       "type": "ByteTag",
                       "value": 0
+                    },
+                    "ultrawarm": {
+                      "type": "ByteTag",
+                      "value": 0
+                    },
+                    "height": {
+                      "type": "IntTag",
+                      "value": 256
                     }
                   }
                 }
@@ -136,13 +144,21 @@
                       "type": "DoubleTag",
                       "value": 1
                     },
-                    "ultrawarm": {
+                    "min_y": {
-                      "type": "ByteTag",
+                      "type": "IntTag",
                       "value": 0
                     },
                     "has_ceiling": {
                       "type": "ByteTag",
                       "value": 1
+                    },
+                    "ultrawarm": {
+                      "type": "ByteTag",
+                      "value": 0
+                    },
+                    "height": {
+                      "type": "IntTag",
+                      "value": 256
                     }
                   }
                 }
@@ -207,13 +223,21 @@
                       "type": "DoubleTag",
                       "value": 8
                     },
-                    "ultrawarm": {
+                    "min_y": {
-                      "type": "ByteTag",
+                      "type": "IntTag",
-                      "value": 1
+                      "value": 0
                     },
                     "has_ceiling": {
                       "type": "ByteTag",
                       "value": 1
+                    },
+                    "ultrawarm": {
+                      "type": "ByteTag",
+                      "value": 1
+                    },
+                    "height": {
+                      "type": "IntTag",
+                      "value": 256
                     }
                   }
                 }
@@ -278,13 +302,21 @@
                       "type": "DoubleTag",
                       "value": 1
                     },
-                    "ultrawarm": {
+                    "min_y": {
-                      "type": "ByteTag",
+                      "type": "IntTag",
                       "value": 0
                     },
                     "has_ceiling": {
                       "type": "ByteTag",
                       "value": 0
+                    },
+                    "ultrawarm": {
+                      "type": "ByteTag",
+                      "value": 0
+                    },
+                    "height": {
+                      "type": "IntTag",
+                      "value": 256
                     }
                   }
                 }
@@ -7046,6 +7078,147 @@
                     }
                   }
                 }
+              },
+              {
+                "name": {
+                  "type": "StringTag",
+                  "value": "minecraft:dripstone_caves"
+                },
+                "id": {
+                  "type": "IntTag",
+                  "value": 174
+                },
+                "element": {
+                  "type": "CompoundTag",
+                  "value": {
+                    "precipitation": {
+                      "type": "StringTag",
+                      "value": "rain"
+                    },
+                    "effects": {
+                      "type": "CompoundTag",
+                      "value": {
+                        "water_fog_color": {
+                          "type": "IntTag",
+                          "value": 329011
+                        },
+                        "sky_color": {
+                          "type": "IntTag",
+                          "value": 7907327
+                        },
+                        "fog_color": {
+                          "type": "IntTag",
+                          "value": 12638463
+                        },
+                        "water_color": {
+                          "type": "IntTag",
+                          "value": 4159204
+                        },
+                        "mood_sound": {
+                          "type": "CompoundTag",
+                          "value": {
+                            "tick_delay": {
+                              "type": "IntTag",
+                              "value": 6000
+                            },
+                            "offset": {
+                              "type": "DoubleTag",
+                              "value": 2
+                            },
+                            "block_search_extent": {
+                              "type": "IntTag",
+                              "value": 8
+                            },
+                            "sound": {
+                              "type": "StringTag",
+                              "value": "minecraft:ambient.cave"
+                            }
+                          }
+                        }
+                      }
+                    },
+                    "depth": {
+                      "type": "FloatTag",
+                      "value": 0.125
+                    },
+                    "temperature": {
+                      "type": "FloatTag",
+                      "value": 0.8
+                    },
+                    "scale": {
+                      "type": "FloatTag",
+                      "value": 0.05
+                    },
+                    "downfall": {
+                      "type": "FloatTag",
+                      "value": 0.4
+                    },
+                    "category": {
+                      "type": "StringTag",
+                      "value": "underground"
+                    }
+                  }
+                }
+              },
+              {
+                "name": {
+                  "type": "StringTag",
+                  "value": "minecraft:lush_caves"
+                },
+                "id": {
+                  "type": "IntTag",
+                  "value": 175
+                },
+                "element": {
+                  "type": "CompoundTag",
+                  "value": {
+                    "precipitation": {
+                      "type": "StringTag",
+                      "value": "rain"
+                    },
+                    "effects": {
+                      "type": "CompoundTag",
+                      "value": {
+                        "water_fog_color": {
+                          "type": "IntTag",
+                          "value": 329011
+                        },
+                        "sky_color": {
+                          "type": "IntTag",
+                          "value": 8103167
+                        },
+                        "fog_color": {
+                          "type": "IntTag",
+                          "value": 12638463
+                        },
+                        "water_color": {
+                          "type": "IntTag",
+                          "value": 4159204
+                        }
+                      }
+                    },
+                    "depth": {
+                      "type": "FloatTag",
+                      "value": 0.1
+                    },
+                    "temperature": {
+                      "type": "FloatTag",
+                      "value": 0.5
+                    },
+                    "scale": {
+                      "type": "FloatTag",
+                      "value": 0.2
+                    },
+                    "downfall": {
+                      "type": "FloatTag",
+                      "value": 0.5
+                    },
+                    "category": {
+                      "type": "StringTag",
+                      "value": "underground"
+                    }
+                  }
+                }
               }
             ]
           }

src/main/resources/mapping.json

@@ -12,38 +12,38 @@
     "PacketLoginOutPluginMessaging": "0x04",
   },
   "PlayIn": {
-    "0x10": "PacketPlayInKeepAlive",
+    "0x0F": "PacketPlayInKeepAlive",
     "0x03": "PacketPlayInChat",
-    "0x13": "PacketPlayInPositionAndLook",
+    "0x12": "PacketPlayInPositionAndLook",
-    "0x12": "PacketPlayInPosition",
+    "0x11": "PacketPlayInPosition",
-    "0x14": "PacketPlayInRotation",
+    "0x13": "PacketPlayInRotation",
-    "0x0B": "PacketPlayInPluginMessaging",
+    "0x0A": "PacketPlayInPluginMessaging",
     "0x06": "PacketPlayInTabComplete",
     "0x25": "PacketPlayInHeldItemChange"
   },
   "PlayOut": {
-    "PacketPlayOutLogin": "0x24",
+    "PacketPlayOutLogin": "0x26",
-    "PacketPlayOutPositionAndLook": "0x34",
+    "PacketPlayOutPositionAndLook": "0x38",
-    "PacketPlayOutSpawnPosition": "0x42",
+    "PacketPlayOutSpawnPosition": "0x4B",
-    "PacketPlayOutChat": "0x0E",
+    "PacketPlayOutChat": "0x0F",
-    "PacketPlayOutPlayerAbilities": "0x30",
+    "PacketPlayOutPlayerAbilities": "0x32",
-    "PacketPlayOutMapChunk": "0x20",
+    "PacketPlayOutMapChunk": "0x22",
-    "PacketPlayOutUnloadChunk": "0x1C",
+    "PacketPlayOutUnloadChunk": "0x1D",
-    "PacketPlayOutLightUpdate": "0x23",
+    "PacketPlayOutLightUpdate": "0x25",
-    "PacketPlayOutKeepAlive": "0x1F",
+    "PacketPlayOutKeepAlive": "0x21",
-    "PacketPlayOutPlayerInfo": "0x32",
+    "PacketPlayOutPlayerInfo": "0x36",
-    "PacketPlayOutUpdateViewPosition": "0x40",
+    "PacketPlayOutUpdateViewPosition": "0x49",
-    "PacketPlayOutDisconnect": "0x19",
+    "PacketPlayOutDisconnect": "0x1A",
-    "PacketPlayOutPluginMessaging": "0x17",
+    "PacketPlayOutPluginMessaging": "0x18",
-    "PacketPlayOutTabComplete": "0x0F",
+    "PacketPlayOutTabComplete": "0x11",
-    "PacketPlayOutDeclareCommands": "0x10",
+    "PacketPlayOutDeclareCommands": "0x12",
-    "PacketPlayOutRespawn": "0x39",
+    "PacketPlayOutRespawn": "0x3D",
-    "PacketPlayOutGameState": "0x1D",
+    "PacketPlayOutGameState": "0x1E",
-    "PacketPlayOutEntityDestroy": "0x36",
+    "PacketPlayOutEntityDestroy": "0x3A",
-    "PacketPlayOutEntityMetadata": "0x44",
+    "PacketPlayOutEntityMetadata": "0x4D",
     "PacketPlayOutSpawnEntity": "0x00",
     "PacketPlayOutSpawnEntityLiving": "0x02",
-    "PacketPlayOutHeldItemChange": "0x3F"
+    "PacketPlayOutHeldItemChange": "0x48"
   },
   "StatusIn": {
     "0x01": "PacketStatusInPing",