/// <summary>
/// Handle the given packet
/// </summary>
/// <param name="packetID">Packet ID</param>
/// <param name="packetData">Packet contents</param>
/// <returns>TRUE if the packet was processed, FALSE if ignored or unknown</returns>
internal bool HandlePacket(Packet packet)
{
int packetID = packet.id;
List <byte> packetData = packet.data;
try
{
if (login_phase)
{
switch (packetID) //Packet IDs are different while logging in
{
case 0x03:
if (protocolversion >= (int)McVersion.V18)
{
connectionInfo.compressionThreshold = dataTypes.ReadNextVarInt(packetData);
}
break;
default:
return(false); //Ignored packet
}
}
return(packetHandler.HandlePacket(Protocol18PacketTypes.GetPacketIncomingType(packetID, protocolversion), packet.data));
}
catch (Exception innerException)
{
throw new System.IO.InvalidDataException(
String.Format("Failed to process incoming packet of type {0}. (PacketID: {1}, Protocol: {2}, LoginPhase: {3}, InnerException: {4}).",
Protocol18PacketTypes.GetPacketIncomingType(packetID, protocolversion),
packetID,
protocolversion,
login_phase,
innerException.GetType()),
innerException);
}
}
/// <summary>
/// Handle Forge plugin messages
/// </summary>
/// <param name="channel">Plugin message channel</param>
/// <param name="packetData">Plugin message data</param>
/// <param name="currentDimension">Current world dimension</param>
/// <returns>TRUE if the plugin message was recognized and handled</returns>
public bool HandlePluginMessage(string channel, List <byte> packetData, ref int currentDimension)
{
if (ForgeEnabled() && fmlHandshakeState != FMLHandshakeClientState.DONE)
{
if (channel == "FML|HS")
{
FMLHandshakeDiscriminator discriminator = (FMLHandshakeDiscriminator)dataTypes.ReadNextByte(packetData);
if (discriminator == FMLHandshakeDiscriminator.HandshakeReset)
{
fmlHandshakeState = FMLHandshakeClientState.START;
return(true);
}
switch (fmlHandshakeState)
{
case FMLHandshakeClientState.START:
if (discriminator != FMLHandshakeDiscriminator.ServerHello)
{
return(false);
}
// Send the plugin channel registration.
// REGISTER is somewhat special in that it doesn't actually include length information,
// and is also \0-separated.
// Also, yes, "FML" is there twice. Don't ask me why, but that's the way forge does it.
string[] channels = { "FML|HS", "FML", "FML|MP", "FML", "FORGE" };
protocol18.SendPluginChannelPacket("REGISTER", Encoding.UTF8.GetBytes(string.Join("\0", channels)));
byte fmlProtocolVersion = dataTypes.ReadNextByte(packetData);
if (Settings.DebugMessages)
{
ConsoleIO.WriteLineFormatted("§8Forge protocol version : " + fmlProtocolVersion);
}
if (fmlProtocolVersion >= 1)
{
currentDimension = dataTypes.ReadNextInt(packetData);
}
// Tell the server we're running the same version.
SendForgeHandshakePacket(FMLHandshakeDiscriminator.ClientHello, new byte[] { fmlProtocolVersion });
// Then tell the server that we're running the same mods.
if (Settings.DebugMessages)
{
ConsoleIO.WriteLineFormatted("§8Sending falsified mod list to server...");
}
byte[][] mods = new byte[forgeInfo.Mods.Count][];
for (int i = 0; i < forgeInfo.Mods.Count; i++)
{
ForgeInfo.ForgeMod mod = forgeInfo.Mods[i];
mods[i] = dataTypes.ConcatBytes(dataTypes.GetString(mod.ModID), dataTypes.GetString(mod.Version));
}
SendForgeHandshakePacket(FMLHandshakeDiscriminator.ModList,
dataTypes.ConcatBytes(dataTypes.GetVarInt(forgeInfo.Mods.Count), dataTypes.ConcatBytes(mods)));
fmlHandshakeState = FMLHandshakeClientState.WAITINGSERVERDATA;
return(true);
case FMLHandshakeClientState.WAITINGSERVERDATA:
if (discriminator != FMLHandshakeDiscriminator.ModList)
{
return(false);
}
Thread.Sleep(2000);
if (Settings.DebugMessages)
{
ConsoleIO.WriteLineFormatted("§8Accepting server mod list...");
}
// Tell the server that yes, we are OK with the mods it has
// even though we don't actually care what mods it has.
SendForgeHandshakePacket(FMLHandshakeDiscriminator.HandshakeAck,
new byte[] { (byte)FMLHandshakeClientState.WAITINGSERVERDATA });
fmlHandshakeState = FMLHandshakeClientState.WAITINGSERVERCOMPLETE;
return(false);
case FMLHandshakeClientState.WAITINGSERVERCOMPLETE:
// The server now will tell us a bunch of registry information.
// We need to read it all, though, until it says that there is no more.
if (discriminator != FMLHandshakeDiscriminator.RegistryData)
{
return(false);
}
if (protocolversion < Protocol18Handler.MC18Version)
{
// 1.7.10 and below have one registry
// with blocks and items.
int registrySize = dataTypes.ReadNextVarInt(packetData);
if (Settings.DebugMessages)
{
ConsoleIO.WriteLineFormatted("§8Received registry with " + registrySize + " entries");
}
fmlHandshakeState = FMLHandshakeClientState.PENDINGCOMPLETE;
}
else
{
// 1.8+ has more than one registry.
bool hasNextRegistry = dataTypes.ReadNextBool(packetData);
string registryName = dataTypes.ReadNextString(packetData);
int registrySize = dataTypes.ReadNextVarInt(packetData);
if (Settings.DebugMessages)
{
ConsoleIO.WriteLineFormatted("§8Received registry " + registryName + " with " + registrySize + " entries");
}
if (!hasNextRegistry)
{
fmlHandshakeState = FMLHandshakeClientState.PENDINGCOMPLETE;
}
}
return(false);
case FMLHandshakeClientState.PENDINGCOMPLETE:
// The server will ask us to accept the registries.
// Just say yes.
if (discriminator != FMLHandshakeDiscriminator.HandshakeAck)
{
return(false);
}
if (Settings.DebugMessages)
{
ConsoleIO.WriteLineFormatted("§8Accepting server registries...");
}
SendForgeHandshakePacket(FMLHandshakeDiscriminator.HandshakeAck,
new byte[] { (byte)FMLHandshakeClientState.PENDINGCOMPLETE });
fmlHandshakeState = FMLHandshakeClientState.COMPLETE;
return(true);
case FMLHandshakeClientState.COMPLETE:
// One final "OK". On the actual forge source, a packet is sent from
// the client to the client saying that the connection was complete, but
// we don't need to do that.
SendForgeHandshakePacket(FMLHandshakeDiscriminator.HandshakeAck,
new byte[] { (byte)FMLHandshakeClientState.COMPLETE });
if (Settings.DebugMessages)
{
ConsoleIO.WriteLine("Forge server connection complete!");
}
fmlHandshakeState = FMLHandshakeClientState.DONE;
return(true);
}
}
}
return(false);
}
/// <summary>
/// Read the next packet from the network
/// </summary>
/// <param name="packetID">will contain packet ID</param>
/// <param name="packetData">will contain raw packet Data</param>
internal void ReadNextPacket(ref int packetID, List <byte> packetData)
{
packetData.Clear();
int size = dataTypes.ReadNextVarIntRAW(socketWrapper); //Packet size
packetData.AddRange(socketWrapper.ReadDataRAW(size)); //Packet contents
//Handle packet decompression
if (protocolversion >= MC18Version &&
compression_treshold > 0)
{
int sizeUncompressed = dataTypes.ReadNextVarInt(packetData);
if (sizeUncompressed != 0) // != 0 means compressed, let's decompress
{
byte[] toDecompress = packetData.ToArray();
byte[] uncompressed = ZlibUtils.Decompress(toDecompress, sizeUncompressed);
packetData.Clear();
packetData.AddRange(uncompressed);
}
}
packetID = dataTypes.ReadNextVarInt(packetData); //Packet ID
}
/// <summary>
/// Ping a Minecraft server to get information about the server
/// </summary>
/// <returns>True if ping was successful</returns>
public static bool doPing(string host, int port, ref int protocolversion, ref ForgeInfo forgeInfo)
{
string version = "";
TcpClient tcp = ProxyHandler.newTcpClient(host, port);
tcp.ReceiveBufferSize = 1024 * 1024;
SocketWrapper socketWrapper = new SocketWrapper(tcp);
DataTypes dataTypes = new DataTypes(MC18Version);
byte[] packet_id = dataTypes.GetVarInt(0);
byte[] protocol_version = dataTypes.GetVarInt(-1);
byte[] server_port = BitConverter.GetBytes((ushort)port); Array.Reverse(server_port);
byte[] next_state = dataTypes.GetVarInt(1);
byte[] packet = dataTypes.ConcatBytes(packet_id, protocol_version, dataTypes.GetString(host), server_port, next_state);
byte[] tosend = dataTypes.ConcatBytes(dataTypes.GetVarInt(packet.Length), packet);
socketWrapper.SendDataRAW(tosend);
byte[] status_request = dataTypes.GetVarInt(0);
byte[] request_packet = dataTypes.ConcatBytes(dataTypes.GetVarInt(status_request.Length), status_request);
socketWrapper.SendDataRAW(request_packet);
int packetLength = dataTypes.ReadNextVarIntRAW(socketWrapper);
if (packetLength > 0) //Read Response length
{
List <byte> packetData = new List <byte>(socketWrapper.ReadDataRAW(packetLength));
if (dataTypes.ReadNextVarInt(packetData) == 0x00) //Read Packet ID
{
string result = dataTypes.ReadNextString(packetData); //Get the Json data
if (!String.IsNullOrEmpty(result) && result.StartsWith("{") && result.EndsWith("}"))
{
Json.JSONData jsonData = Json.ParseJson(result);
if (jsonData.Type == Json.JSONData.DataType.Object && jsonData.Properties.ContainsKey("version"))
{
Json.JSONData versionData = jsonData.Properties["version"];
//Retrieve display name of the Minecraft version
if (versionData.Properties.ContainsKey("name"))
{
version = versionData.Properties["name"].StringValue;
}
//Retrieve protocol version number for handling this server
if (versionData.Properties.ContainsKey("protocol"))
{
protocolversion = dataTypes.Atoi(versionData.Properties["protocol"].StringValue);
}
// Check for forge on the server.
Protocol18Forge.ServerInfoCheckForge(jsonData, ref forgeInfo);
ConsoleIO.WriteLineFormatted("§8Server version : " + version + " (protocol v" + protocolversion + (forgeInfo != null ? ", with Forge)." : ")."));
return(true);
}
}
}
}
return(false);
}
/// <summary>
/// Process chunk column data from the server and (un)load the chunk from the Minecraft world
/// </summary>
/// <param name="chunkX">Chunk X location</param>
/// <param name="chunkZ">Chunk Z location</param>
/// <param name="chunkMask">Chunk mask for reading data</param>
/// <param name="chunkMask2">Chunk mask for some additional 1.7 metadata</param>
/// <param name="hasSkyLight">Contains skylight info</param>
/// <param name="chunksContinuous">Are the chunk continuous</param>
/// <param name="currentDimension">Current dimension type (0 = overworld)</param>
/// <param name="cache">Cache for reading chunk data</param>
public void ProcessChunkColumnData(int chunkX, int chunkZ, ushort chunkMask, ushort chunkMask2, bool hasSkyLight, bool chunksContinuous, int currentDimension, Queue <byte> cache)
{
if (protocolversion >= Protocol18Handler.MC19Version)
{
// 1.9 and above chunk format
// Unloading chunks is handled by a separate packet
for (int chunkY = 0; chunkY < ChunkColumn.ColumnSize; chunkY++)
{
if ((chunkMask & (1 << chunkY)) != 0)
{
// 1.14 and above Non-air block count inside chunk section, for lighting purposes
if (protocolversion >= Protocol18Handler.MC114Version)
{
dataTypes.ReadNextShort(cache);
}
byte bitsPerBlock = dataTypes.ReadNextByte(cache);
bool usePalette = (bitsPerBlock <= 8);
// Vanilla Minecraft will use at least 4 bits per block
if (bitsPerBlock < 4)
{
bitsPerBlock = 4;
}
// MC 1.9 to 1.12 will set palette length field to 0 when palette
// is not used, MC 1.13+ does not send the field at all in this case
int paletteLength = 0; // Assume zero when length is absent
if (usePalette || protocolversion < Protocol18Handler.MC113Version)
{
paletteLength = dataTypes.ReadNextVarInt(cache);
}
int[] palette = new int[paletteLength];
for (int i = 0; i < paletteLength; i++)
{
palette[i] = dataTypes.ReadNextVarInt(cache);
}
// Bit mask covering bitsPerBlock bits
// EG, if bitsPerBlock = 5, valueMask = 00011111 in binary
uint valueMask = (uint)((1 << bitsPerBlock) - 1);
ulong[] dataArray = dataTypes.ReadNextULongArray(cache);
Chunk chunk = new Chunk();
if (dataArray.Length > 0)
{
for (int blockY = 0; blockY < Chunk.SizeY; blockY++)
{
for (int blockZ = 0; blockZ < Chunk.SizeZ; blockZ++)
{
for (int blockX = 0; blockX < Chunk.SizeX; blockX++)
{
int blockNumber = (blockY * Chunk.SizeZ + blockZ) * Chunk.SizeX + blockX;
int startLong = (blockNumber * bitsPerBlock) / 64;
int startOffset = (blockNumber * bitsPerBlock) % 64;
int endLong = ((blockNumber + 1) * bitsPerBlock - 1) / 64;
// TODO: In the future a single ushort may not store the entire block id;
// the Block code may need to change if block state IDs go beyond 65535
ushort blockId;
if (startLong == endLong)
{
blockId = (ushort)((dataArray[startLong] >> startOffset) & valueMask);
}
else
{
int endOffset = 64 - startOffset;
blockId = (ushort)((dataArray[startLong] >> startOffset | dataArray[endLong] << endOffset) & valueMask);
}
if (usePalette)
{
// Get the real block ID out of the palette
blockId = (ushort)palette[blockId];
}
chunk[blockX, blockY, blockZ] = new Block(blockId);
}
}
}
}
//We have our chunk, save the chunk into the world
if (handler.GetWorld()[chunkX, chunkZ] == null)
{
handler.GetWorld()[chunkX, chunkZ] = new ChunkColumn();
}
handler.GetWorld()[chunkX, chunkZ][chunkY] = chunk;
//Pre-1.14 Lighting data
if (protocolversion < Protocol18Handler.MC114Version)
{
//Skip block light
dataTypes.ReadData((Chunk.SizeX * Chunk.SizeY * Chunk.SizeZ) / 2, cache);
//Skip sky light
if (currentDimension == 0)
{
// Sky light is not sent in the nether or the end
dataTypes.ReadData((Chunk.SizeX * Chunk.SizeY * Chunk.SizeZ) / 2, cache);
}
}
}
}
// Don't worry about skipping remaining data since there is no useful data afterwards in 1.9
// (plus, it would require parsing the tile entity lists' NBT)
}
else if (protocolversion >= Protocol18Handler.MC18Version)
{
// 1.8 chunk format
if (chunksContinuous && chunkMask == 0)
{
//Unload the entire chunk column
handler.GetWorld()[chunkX, chunkZ] = null;
}
else
{
//Load chunk data from the server
for (int chunkY = 0; chunkY < ChunkColumn.ColumnSize; chunkY++)
{
if ((chunkMask & (1 << chunkY)) != 0)
{
Chunk chunk = new Chunk();
//Read chunk data, all at once for performance reasons, and build the chunk object
Queue <ushort> queue = new Queue <ushort>(dataTypes.ReadNextUShortsLittleEndian(Chunk.SizeX * Chunk.SizeY * Chunk.SizeZ, cache));
for (int blockY = 0; blockY < Chunk.SizeY; blockY++)
{
for (int blockZ = 0; blockZ < Chunk.SizeZ; blockZ++)
{
for (int blockX = 0; blockX < Chunk.SizeX; blockX++)
{
chunk[blockX, blockY, blockZ] = new Block(queue.Dequeue());
}
}
}
//We have our chunk, save the chunk into the world
if (handler.GetWorld()[chunkX, chunkZ] == null)
{
handler.GetWorld()[chunkX, chunkZ] = new ChunkColumn();
}
handler.GetWorld()[chunkX, chunkZ][chunkY] = chunk;
}
}
//Skip light information
for (int chunkY = 0; chunkY < ChunkColumn.ColumnSize; chunkY++)
{
if ((chunkMask & (1 << chunkY)) != 0)
{
//Skip block light
dataTypes.ReadData((Chunk.SizeX * Chunk.SizeY * Chunk.SizeZ) / 2, cache);
//Skip sky light
if (hasSkyLight)
{
dataTypes.ReadData((Chunk.SizeX * Chunk.SizeY * Chunk.SizeZ) / 2, cache);
}
}
}
//Skip biome metadata
if (chunksContinuous)
{
dataTypes.ReadData(Chunk.SizeX * Chunk.SizeZ, cache);
}
}
}
else
{
// 1.7 chunk format
if (chunksContinuous && chunkMask == 0)
{
//Unload the entire chunk column
handler.GetWorld()[chunkX, chunkZ] = null;
}
else
{
//Count chunk sections
int sectionCount = 0;
int addDataSectionCount = 0;
for (int chunkY = 0; chunkY < ChunkColumn.ColumnSize; chunkY++)
{
if ((chunkMask & (1 << chunkY)) != 0)
{
sectionCount++;
}
if ((chunkMask2 & (1 << chunkY)) != 0)
{
addDataSectionCount++;
}
}
//Read chunk data, unpacking 4-bit values into 8-bit values for block metadata
Queue <byte> blockTypes = new Queue <byte>(dataTypes.ReadData(Chunk.SizeX * Chunk.SizeY * Chunk.SizeZ * sectionCount, cache));
Queue <byte> blockMeta = new Queue <byte>();
foreach (byte packed in dataTypes.ReadData((Chunk.SizeX * Chunk.SizeY * Chunk.SizeZ * sectionCount) / 2, cache))
{
byte hig = (byte)(packed >> 4);
byte low = (byte)(packed & (byte)0x0F);
blockMeta.Enqueue(hig);
blockMeta.Enqueue(low);
}
//Skip data we don't need
dataTypes.ReadData((Chunk.SizeX * Chunk.SizeY * Chunk.SizeZ * sectionCount) / 2, cache); //Block light
if (hasSkyLight)
{
dataTypes.ReadData((Chunk.SizeX * Chunk.SizeY * Chunk.SizeZ * sectionCount) / 2, cache); //Sky light
}
dataTypes.ReadData((Chunk.SizeX * Chunk.SizeY * Chunk.SizeZ * addDataSectionCount) / 2, cache); //BlockAdd
if (chunksContinuous)
{
dataTypes.ReadData(Chunk.SizeX * Chunk.SizeZ, cache); //Biomes
}
//Load chunk data
for (int chunkY = 0; chunkY < ChunkColumn.ColumnSize; chunkY++)
{
if ((chunkMask & (1 << chunkY)) != 0)
{
Chunk chunk = new Chunk();
for (int blockY = 0; blockY < Chunk.SizeY; blockY++)
{
for (int blockZ = 0; blockZ < Chunk.SizeZ; blockZ++)
{
for (int blockX = 0; blockX < Chunk.SizeX; blockX++)
{
chunk[blockX, blockY, blockZ] = new Block(blockTypes.Dequeue(), blockMeta.Dequeue());
}
}
}
if (handler.GetWorld()[chunkX, chunkZ] == null)
{
handler.GetWorld()[chunkX, chunkZ] = new ChunkColumn();
}
handler.GetWorld()[chunkX, chunkZ][chunkY] = chunk;
}
}
}
}
}
/// <summary>
/// Process chunk column data from the server and (un)load the chunk from the Minecraft world
/// </summary>
/// <param name="chunkX">Chunk X location</param>
/// <param name="chunkZ">Chunk Z location</param>
/// <param name="chunkMask">Chunk mask for reading data</param>
/// <param name="chunkMask2">Chunk mask for some additional 1.7 metadata</param>
/// <param name="hasSkyLight">Contains skylight info</param>
/// <param name="chunksContinuous">Are the chunk continuous</param>
/// <param name="currentDimension">Current dimension type (0 = overworld)</param>
/// <param name="cache">Cache for reading chunk data</param>
public void ProcessChunkColumnData(int chunkX, int chunkZ, ushort chunkMask, ushort chunkMask2, bool hasSkyLight, bool chunksContinuous, int currentDimension, Queue <byte> cache)
{
if (protocolversion >= Protocol18Handler.MC19Version)
{
// 1.9 and above chunk format
// Unloading chunks is handled by a separate packet
for (int chunkY = 0; chunkY < ChunkColumn.ColumnSize; chunkY++)
{
if ((chunkMask & (1 << chunkY)) != 0)
{
// 1.14 and above Non-air block count inside chunk section, for lighting purposes
if (protocolversion >= Protocol18Handler.MC114Version)
{
dataTypes.ReadNextShort(cache);
}
byte bitsPerBlock = dataTypes.ReadNextByte(cache);
bool usePalette = (bitsPerBlock <= 8);
// Vanilla Minecraft will use at least 4 bits per block
if (bitsPerBlock < 4)
{
bitsPerBlock = 4;
}
// MC 1.9 to 1.12 will set palette length field to 0 when palette
// is not used, MC 1.13+ does not send the field at all in this case
int paletteLength = 0; // Assume zero when length is absent
if (usePalette || protocolversion < Protocol18Handler.MC113Version)
{
paletteLength = dataTypes.ReadNextVarInt(cache);
}
int[] palette = new int[paletteLength];
for (int i = 0; i < paletteLength; i++)
{
palette[i] = dataTypes.ReadNextVarInt(cache);
}
// Bit mask covering bitsPerBlock bits
// EG, if bitsPerBlock = 5, valueMask = 00011111 in binary
uint valueMask = (uint)((1 << bitsPerBlock) - 1);
// Block IDs are packed in the array of 64-bits integers
ulong[] dataArray = dataTypes.ReadNextULongArray(cache);
Chunk chunk = new Chunk();
if (dataArray.Length > 0)
{
int longIndex = 0;
int startOffset = 0 - bitsPerBlock;
for (int blockY = 0; blockY < Chunk.SizeY; blockY++)
{
for (int blockZ = 0; blockZ < Chunk.SizeZ; blockZ++)
{
for (int blockX = 0; blockX < Chunk.SizeX; blockX++)
{
// NOTICE: In the future a single ushort may not store the entire block id;
// the Block class may need to change if block state IDs go beyond 65535
ushort blockId;
// Calculate location of next block ID inside the array of Longs
startOffset += bitsPerBlock;
bool overlap = false;
if ((startOffset + bitsPerBlock) > 64)
{
if (protocolversion >= Protocol18Handler.MC116Version)
{
// In MC 1.16+, padding is applied to prevent overlapping between Longs:
// [ LONG INTEGER ][ LONG INTEGER ]
// [Block][Block][Block]XXXXX[Block][Block][Block]XXXXX
// When overlapping, move forward to the beginning of the next Long
startOffset = 0;
longIndex++;
}
else
{
// In MC 1.15 and lower, block IDs can overlap between Longs:
// [ LONG INTEGER ][ LONG INTEGER ]
// [Block][Block][Block][Blo ck][Block][Block][Block][
// Detect when we reached the next Long or switch to overlap mode
if (startOffset >= 64)
{
startOffset -= 64;
longIndex++;
}
else
{
overlap = true;
}
}
}
// Extract Block ID
if (overlap)
{
int endOffset = 64 - startOffset;
blockId = (ushort)((dataArray[longIndex] >> startOffset | dataArray[longIndex + 1] << endOffset) & valueMask);
}
else
{
blockId = (ushort)((dataArray[longIndex] >> startOffset) & valueMask);
}
// Map small IDs to actual larger block IDs
if (usePalette)
{
if (paletteLength <= blockId)
{
int blockNumber = (blockY * Chunk.SizeZ + blockZ) * Chunk.SizeX + blockX;
throw new IndexOutOfRangeException(String.Format("Block ID {0} is outside Palette range 0-{1}! (bitsPerBlock: {2}, blockNumber: {3})",
blockId,
paletteLength - 1,
bitsPerBlock,
blockNumber));
}
blockId = (ushort)palette[blockId];
}
// We have our block, save the block into the chunk
chunk[blockX, blockY, blockZ] = new Block(blockId);
}
}
}
}
//We have our chunk, save the chunk into the world
if (handler.GetWorld()[chunkX, chunkZ] == null)
{
handler.GetWorld()[chunkX, chunkZ] = new ChunkColumn();
}
handler.GetWorld()[chunkX, chunkZ][chunkY] = chunk;
//Pre-1.14 Lighting data
if (protocolversion < Protocol18Handler.MC114Version)
{
//Skip block light
dataTypes.ReadData((Chunk.SizeX * Chunk.SizeY * Chunk.SizeZ) / 2, cache);
//Skip sky light
if (currentDimension == 0)
{
// Sky light is not sent in the nether or the end
dataTypes.ReadData((Chunk.SizeX * Chunk.SizeY * Chunk.SizeZ) / 2, cache);
}
}
}
}
// Don't worry about skipping remaining data since there is no useful data afterwards in 1.9
// (plus, it would require parsing the tile entity lists' NBT)
}
else if (protocolversion >= Protocol18Handler.MC18Version)
{
// 1.8 chunk format
if (chunksContinuous && chunkMask == 0)
{
//Unload the entire chunk column
handler.GetWorld()[chunkX, chunkZ] = null;
}
else
{
//Load chunk data from the server
for (int chunkY = 0; chunkY < ChunkColumn.ColumnSize; chunkY++)
{
if ((chunkMask & (1 << chunkY)) != 0)
{
Chunk chunk = new Chunk();
//Read chunk data, all at once for performance reasons, and build the chunk object
Queue <ushort> queue = new Queue <ushort>(dataTypes.ReadNextUShortsLittleEndian(Chunk.SizeX * Chunk.SizeY * Chunk.SizeZ, cache));
for (int blockY = 0; blockY < Chunk.SizeY; blockY++)
{
for (int blockZ = 0; blockZ < Chunk.SizeZ; blockZ++)
{
for (int blockX = 0; blockX < Chunk.SizeX; blockX++)
{
chunk[blockX, blockY, blockZ] = new Block(queue.Dequeue());
}
}
}
//We have our chunk, save the chunk into the world
if (handler.GetWorld()[chunkX, chunkZ] == null)
{
handler.GetWorld()[chunkX, chunkZ] = new ChunkColumn();
}
handler.GetWorld()[chunkX, chunkZ][chunkY] = chunk;
}
}
//Skip light information
for (int chunkY = 0; chunkY < ChunkColumn.ColumnSize; chunkY++)
{
if ((chunkMask & (1 << chunkY)) != 0)
{
//Skip block light
dataTypes.ReadData((Chunk.SizeX * Chunk.SizeY * Chunk.SizeZ) / 2, cache);
//Skip sky light
if (hasSkyLight)
{
dataTypes.ReadData((Chunk.SizeX * Chunk.SizeY * Chunk.SizeZ) / 2, cache);
}
}
}
//Skip biome metadata
if (chunksContinuous)
{
dataTypes.ReadData(Chunk.SizeX * Chunk.SizeZ, cache);
}
}
}
else
{
// 1.7 chunk format
if (chunksContinuous && chunkMask == 0)
{
//Unload the entire chunk column
handler.GetWorld()[chunkX, chunkZ] = null;
}
else
{
//Count chunk sections
int sectionCount = 0;
int addDataSectionCount = 0;
for (int chunkY = 0; chunkY < ChunkColumn.ColumnSize; chunkY++)
{
if ((chunkMask & (1 << chunkY)) != 0)
{
sectionCount++;
}
if ((chunkMask2 & (1 << chunkY)) != 0)
{
addDataSectionCount++;
}
}
//Read chunk data, unpacking 4-bit values into 8-bit values for block metadata
Queue <byte> blockTypes = new Queue <byte>(dataTypes.ReadData(Chunk.SizeX * Chunk.SizeY * Chunk.SizeZ * sectionCount, cache));
Queue <byte> blockMeta = new Queue <byte>();
foreach (byte packed in dataTypes.ReadData((Chunk.SizeX * Chunk.SizeY * Chunk.SizeZ * sectionCount) / 2, cache))
{
byte hig = (byte)(packed >> 4);
byte low = (byte)(packed & (byte)0x0F);
blockMeta.Enqueue(hig);
blockMeta.Enqueue(low);
}
//Skip data we don't need
dataTypes.ReadData((Chunk.SizeX * Chunk.SizeY * Chunk.SizeZ * sectionCount) / 2, cache); //Block light
if (hasSkyLight)
{
dataTypes.ReadData((Chunk.SizeX * Chunk.SizeY * Chunk.SizeZ * sectionCount) / 2, cache); //Sky light
}
dataTypes.ReadData((Chunk.SizeX * Chunk.SizeY * Chunk.SizeZ * addDataSectionCount) / 2, cache); //BlockAdd
if (chunksContinuous)
{
dataTypes.ReadData(Chunk.SizeX * Chunk.SizeZ, cache); //Biomes
}
//Load chunk data
for (int chunkY = 0; chunkY < ChunkColumn.ColumnSize; chunkY++)
{
if ((chunkMask & (1 << chunkY)) != 0)
{
Chunk chunk = new Chunk();
for (int blockY = 0; blockY < Chunk.SizeY; blockY++)
{
for (int blockZ = 0; blockZ < Chunk.SizeZ; blockZ++)
{
for (int blockX = 0; blockX < Chunk.SizeX; blockX++)
{
chunk[blockX, blockY, blockZ] = new Block(blockTypes.Dequeue(), blockMeta.Dequeue());
}
}
}
if (handler.GetWorld()[chunkX, chunkZ] == null)
{
handler.GetWorld()[chunkX, chunkZ] = new ChunkColumn();
}
handler.GetWorld()[chunkX, chunkZ][chunkY] = chunk;
}
}
}
}
}
