private void processChunk(
int x,
int z,
byte[] data,
int bitmask,
int additionalBitmask,
boolean addSkylight,
boolean addBiomes) {
if (data == null) return;
int chunksChanged = 0;
for (int i = 0; i < 16; i++) if ((bitmask & (1 << i)) != 0) chunksChanged++;
if (chunksChanged == 0) return;
byte[] biomes = new byte[256];
synchronized (chunks) {
int i = 0;
for (int y = 0; y < 16; y++) {
if ((bitmask & (1 << y)) == 0) continue;
int dataIndex = i * 4096;
byte[] blocks = Arrays.copyOfRange(data, dataIndex, dataIndex + 4096);
dataIndex += ((chunksChanged - i) * 4096) + (i * 2048);
byte[] metadata = Arrays.copyOfRange(data, dataIndex, dataIndex + 2048);
dataIndex += chunksChanged * 2048;
byte[] light = Arrays.copyOfRange(data, dataIndex, dataIndex + 2048);
dataIndex += chunksChanged * 2048;
byte[] skylight = null;
if (addSkylight) skylight = Arrays.copyOfRange(data, dataIndex, dataIndex + 2048);
byte[] perBlockMetadata = new byte[4096];
byte[] perBlockLight = new byte[4096];
byte[] perBlockSkylight = new byte[4096];
for (int j = 0; j < 2048; j++) {
int k = j * 2;
perBlockMetadata[k] = (byte) (metadata[j] & 0x0F);
perBlockLight[k] = (byte) (light[j] & 0x0F);
if (addSkylight) perBlockSkylight[k] = (byte) (skylight[j] & 0x0F);
k++;
perBlockMetadata[k] = (byte) (metadata[j] >> 4);
perBlockLight[k] = (byte) (light[j] >> 4);
if (addSkylight) perBlockSkylight[k] = (byte) (skylight[j] >> 4);
}
ChunkLocation newLocation = new ChunkLocation(x, y, z);
Chunk chunk =
new Chunk(
this,
newLocation,
blocks,
perBlockMetadata,
perBlockLight,
perBlockSkylight,
biomes);
chunks.put(newLocation, chunk);
bot.getEventManager().sendEvent(new ChunkLoadEvent(this, chunk));
i++;
}
System.arraycopy(data, data.length - 256, biomes, 0, 256);
}
}
@Override
public Chunk getChunkAt(ChunkLocation location) {
synchronized (chunks) {
return chunks.get(location);
}
}
@EventHandler
public void onPacketProcess(PacketProcessEvent event) {
Packet packet = event.getPacket();
if (packet instanceof Packet5PlayerInventory) {
Packet5PlayerInventory inventoryPacket = (Packet5PlayerInventory) packet;
Entity entity = getEntityById(inventoryPacket.entityID);
if (entity == null || !(entity instanceof LivingEntity)) return;
LivingEntity livingEntity = (LivingEntity) entity;
livingEntity.setWornItemAt(inventoryPacket.slot, inventoryPacket.item);
} else if (packet instanceof Packet8UpdateHealth) {
Packet8UpdateHealth updateHealthPacket = (Packet8UpdateHealth) packet;
MainPlayerEntity player = bot.getPlayer();
player.setHealth(updateHealthPacket.healthMP);
player.setHunger(updateHealthPacket.food);
} else if (packet instanceof Packet9Respawn) {
synchronized (chunks) {
chunks.clear();
}
} else if (packet instanceof Packet20NamedEntitySpawn) {
Packet20NamedEntitySpawn spawnPacket = (Packet20NamedEntitySpawn) packet;
PlayerEntity entity = new PlayerEntity(this, spawnPacket.entityId, spawnPacket.name);
entity.setX(spawnPacket.xPosition / 32D);
entity.setY(spawnPacket.yPosition / 32D);
entity.setZ(spawnPacket.zPosition / 32D);
entity.setYaw(spawnPacket.rotation);
entity.setPitch(spawnPacket.pitch);
entity.setWornItemAt(0, new BasicItemStack(spawnPacket.currentItem, 1, 0));
spawnEntity(entity);
} else if (packet instanceof Packet21PickupSpawn) {
Packet21PickupSpawn spawnPacket = (Packet21PickupSpawn) packet;
ItemEntity entity = new ItemEntity(this, spawnPacket.entityId, spawnPacket.item);
entity.setX(spawnPacket.xPosition / 32D);
entity.setY(spawnPacket.yPosition / 32D);
entity.setZ(spawnPacket.zPosition / 32D);
spawnEntity(entity);
} else if (packet instanceof Packet22Collect) {
Entity entity = getEntityById(((Packet22Collect) packet).collectedEntityId);
if (entity != null) despawnEntity(entity);
} else if (packet instanceof Packet23VehicleSpawn) {
Packet23VehicleSpawn spawnPacket = (Packet23VehicleSpawn) packet;
Entity entity = null;
Class<? extends Entity> entityClass = EntityList.getObjectEntityClass(spawnPacket.type);
if (entityClass == null) return;
try {
Constructor<? extends Entity> constructor =
entityClass.getConstructor(World.class, Integer.TYPE);
entity = constructor.newInstance(this, spawnPacket.entityId);
} catch (Exception exception) {
exception.printStackTrace();
return;
}
entity.setX(spawnPacket.xPosition / 32D);
entity.setY(spawnPacket.yPosition / 32D);
entity.setZ(spawnPacket.zPosition / 32D);
entity.setYaw(0);
entity.setPitch(0);
spawnEntity(entity);
} else if (packet instanceof Packet24MobSpawn) {
Packet24MobSpawn mobSpawnPacket = (Packet24MobSpawn) packet;
LivingEntity entity = null;
Class<? extends LivingEntity> entityClass =
EntityList.getLivingEntityClass(mobSpawnPacket.type);
if (entityClass == null) return;
try {
Constructor<? extends LivingEntity> constructor =
entityClass.getConstructor(World.class, Integer.TYPE);
entity = constructor.newInstance(this, mobSpawnPacket.entityId);
} catch (Exception exception) {
exception.printStackTrace();
return;
}
entity.setX(mobSpawnPacket.xPosition / 32D);
entity.setY(mobSpawnPacket.yPosition / 32D);
entity.setZ(mobSpawnPacket.zPosition / 32D);
entity.setYaw((mobSpawnPacket.yaw * 360) / 256F);
entity.setPitch((mobSpawnPacket.pitch * 360) / 256F);
entity.setHeadYaw((mobSpawnPacket.headYaw * 360) / 256F);
if (mobSpawnPacket.getMetadata() != null) entity.updateMetadata(mobSpawnPacket.getMetadata());
spawnEntity(entity);
} else if (packet instanceof Packet25EntityPainting) {
Packet25EntityPainting paintingPacket = (Packet25EntityPainting) packet;
PaintingEntity entity =
new PaintingEntity(
this, paintingPacket.entityId, ArtType.getArtTypeByName(paintingPacket.title));
entity.setX(paintingPacket.xPosition);
entity.setY(paintingPacket.yPosition);
entity.setZ(paintingPacket.zPosition);
entity.setDirection(paintingPacket.direction);
spawnEntity(entity);
} else if (packet instanceof Packet26EntityExpOrb) {
} else if (packet instanceof Packet29DestroyEntity) {
Packet29DestroyEntity destroyEntityPacket = (Packet29DestroyEntity) packet;
for (int id : destroyEntityPacket.entityIds) {
Entity entity = getEntityById(id);
if (entity != null) {
despawnEntity(entity);
entity.setDead(true);
}
}
} else if (packet instanceof Packet30Entity) {
Packet30Entity entityPacket = (Packet30Entity) packet;
Entity entity = getEntityById(entityPacket.entityId);
if (entity == null) return;
entity.setX(entity.getX() + (entityPacket.xPosition / 32D));
entity.setY(entity.getY() + (entityPacket.yPosition / 32D));
entity.setZ(entity.getZ() + (entityPacket.zPosition / 32D));
if (packet instanceof Packet31RelEntityMove || packet instanceof Packet33RelEntityMoveLook) {
entity.setYaw((entityPacket.yaw * 360) / 256F);
entity.setPitch((entityPacket.pitch * 360) / 256F);
}
} else if (packet instanceof Packet34EntityTeleport) {
Packet34EntityTeleport teleportPacket = (Packet34EntityTeleport) packet;
Entity entity = getEntityById(teleportPacket.entityId);
if (entity == null) return;
entity.setX(teleportPacket.xPosition / 32D);
entity.setY(teleportPacket.yPosition / 32D);
entity.setZ(teleportPacket.zPosition / 32D);
entity.setYaw((teleportPacket.yaw * 360) / 256F);
entity.setPitch((teleportPacket.pitch * 360) / 256F);
} else if (packet instanceof Packet35EntityHeadRotation) {
Packet35EntityHeadRotation headRotatePacket = (Packet35EntityHeadRotation) packet;
Entity entity = getEntityById(headRotatePacket.entityId);
if (entity == null || !(entity instanceof LivingEntity)) return;
((LivingEntity) entity).setHeadYaw((headRotatePacket.headRotationYaw * 360) / 256F);
} else if (packet instanceof Packet39AttachEntity) {
Packet39AttachEntity attachEntityPacket = (Packet39AttachEntity) packet;
Entity rider = getEntityById(attachEntityPacket.entityId);
if (rider == null) return;
Entity riding = null;
if (attachEntityPacket.vehicleEntityId == -1) {
if (rider.getRiding() != null) {
rider.getRiding().setRider(null);
rider.setRiding(null);
}
} else {
riding = getEntityById(attachEntityPacket.vehicleEntityId);
if (riding == null) return;
rider.setRiding(riding);
riding.setRider(rider);
}
} else if (packet instanceof Packet40EntityMetadata) {
Packet40EntityMetadata metadataPacket = (Packet40EntityMetadata) packet;
Entity entity = getEntityById(metadataPacket.entityId);
if (entity == null) return;
entity.updateMetadata(metadataPacket.getMetadata());
} else if (packet instanceof Packet43Experience) {
Packet43Experience experiencePacket = (Packet43Experience) packet;
MainPlayerEntity player = bot.getPlayer();
player.setExperienceLevel(experiencePacket.experienceLevel);
player.setExperienceTotal(experiencePacket.experienceTotal);
} else if (packet instanceof Packet51MapChunk) {
if (bot.isMovementDisabled()) return;
Packet51MapChunk mapChunkPacket = (Packet51MapChunk) packet;
processChunk(
mapChunkPacket.x,
mapChunkPacket.z,
mapChunkPacket.chunkData,
mapChunkPacket.bitmask,
mapChunkPacket.additionalBitmask,
true,
mapChunkPacket.biomes);
} else if (packet instanceof Packet52MultiBlockChange) {
Packet52MultiBlockChange multiBlockChangePacket = (Packet52MultiBlockChange) packet;
if (multiBlockChangePacket.metadataArray == null) return;
DataInputStream datainputstream =
new DataInputStream(new ByteArrayInputStream(multiBlockChangePacket.metadataArray));
try {
for (int i = 0; i < multiBlockChangePacket.size; i++) {
short word0 = datainputstream.readShort();
short word1 = datainputstream.readShort();
int id = (word1 & 0xfff) >> 4;
int metadata = word1 & 0xf;
int x = word0 >> 12 & 0xf;
int z = word0 >> 8 & 0xf;
int y = word0 & 0xff;
setBlockIdAt(
id,
(multiBlockChangePacket.xPosition * 16) + x,
y,
(multiBlockChangePacket.zPosition * 16) + z);
setBlockMetadataAt(
metadata,
(multiBlockChangePacket.xPosition * 16) + x,
y,
(multiBlockChangePacket.zPosition * 16) + z);
}
} catch (IOException exception) {
exception.printStackTrace();
}
} else if (packet instanceof Packet53BlockChange) {
Packet53BlockChange blockChangePacket = (Packet53BlockChange) packet;
setBlockIdAt(
blockChangePacket.type,
blockChangePacket.xPosition,
blockChangePacket.yPosition,
blockChangePacket.zPosition);
setBlockMetadataAt(
blockChangePacket.metadata,
blockChangePacket.xPosition,
blockChangePacket.yPosition,
blockChangePacket.zPosition);
} else if (packet instanceof Packet56MapChunks) {
if (bot.isMovementDisabled()) return;
Packet56MapChunks chunkPacket = (Packet56MapChunks) packet;
for (int i = 0; i < chunkPacket.primaryBitmap.length; i++)
processChunk(
chunkPacket.chunkX[i],
chunkPacket.chunkZ[i],
chunkPacket.chunkData[i],
chunkPacket.primaryBitmap[i],
chunkPacket.secondaryBitmap[i],
chunkPacket.skylight,
true);
}
}