public static MapChunkData GetMapChunkData(Chunk chunk, bool firstInit)
{
MapChunkData chunkData = new MapChunkData();
ushort mask = 1;
Queue<Section> sectionsToBeSent = new Queue<Section>();
for (int i = 0; i < 16; ++i)
{
Section currentSection = chunk.Sections[i];
if (currentSection != null && (firstInit || (chunk.SectionsToBeUpdated & 1) << i != 0))
{
sectionsToBeSent.Enqueue(currentSection);
}
}
int dataDim = sectionsToBeSent.Count * (Section.BYTESIZE + Section.SIZE);
if (firstInit)
dataDim += 256;
chunkData.Data = new byte[dataDim];
int halfSize = sectionsToBeSent.Count * Section.HALFSIZE;
int offsetData = sectionsToBeSent.Count * Section.SIZE;
int offsetLight = offsetData + halfSize;
int offsetSkyLight = offsetLight + halfSize;
int sectionIndex = 0;
while(sectionsToBeSent.Count > 0)
{
Section section = sectionsToBeSent.Dequeue();
Buffer.BlockCopy(section.Types, 0, chunkData.Data, sectionIndex * Section.SIZE, Section.SIZE);
Buffer.BlockCopy(section.Data.Data, 0, chunkData.Data, offsetData + (sectionIndex * Section.HALFSIZE),
Section.HALFSIZE);
Buffer.BlockCopy(chunk.Light.Data, section.SectionId * Section.HALFSIZE, chunkData.Data, offsetLight + (sectionIndex * Section.HALFSIZE),
Section.HALFSIZE);
Buffer.BlockCopy(chunk.SkyLight.Data, section.SectionId * Section.HALFSIZE, chunkData.Data, offsetSkyLight + (sectionIndex * Section.HALFSIZE),
Section.HALFSIZE);
chunkData.PrimaryBitMask |= mask << section.SectionId;
++sectionIndex;
// TODO: we leave add array and biome array to 0 (ocean), we need to change the chunk generator accordingly
}
return chunkData;
}
public override void Read(PacketReader stream)
{
int posX = stream.ReadInt();
short posY = stream.ReadShort();
int posZ = stream.ReadInt();
byte sizeX = (byte)(stream.ReadByte() + 1);
byte sizeY = (byte)(stream.ReadByte() + 1);
byte sizeZ = (byte)(stream.ReadByte() + 1);
int o = sizeX * sizeY * sizeZ;
Chunk = new Chunk(null, new Vector3I(posX, posY, posZ));
int len = stream.ReadInt();
stream.ReadBytes(len);
}
internal static void MakeInitChunk( Chunk chunk, SMPPacketWriter Writer )
{
/* byte[] ChunkArray = null;
lock ( chunk.blockslock ) {
using ( MemoryStream memStream = new MemoryStream() ) {
for ( int a = 0; a < 16; a++ ) {
for ( int i = 0; i < ( 16 ); i++ ) {
// Write Blocks
memStream.WriteByte( 5 );
}
for ( int i = 0; i < ( 16 ); i++ ) {
// Write MetaData
memStream.WriteByte( ( ( 0 & 0x0F ) << 4 ) | ( 0 & 0x0F ) );
}
for ( int i = 0; i < ( 16 ); i++ ) {
// Write BlockLight
memStream.WriteByte( 0 );
}
for ( int i = 0; i < ( 16 ); i++ ) {
// Write SkyLight
memStream.WriteByte( ( ( 2 & 0x0F ) << 4 ) | ( 2 & 0x0F ) );
}
// for ( int i = 0; i < ( 16 ); i++ ) {
//Biomes?
// memStream.WriteByte( 0 );
//}
}
ChunkArray = Ionic.Zlib.ZlibStream.CompressBuffer(memStream.ToArray());
}
Logger.LogToConsole( "Init length: " + ChunkArray.Length.ToString() );
}*/
new InitChunkPacket() {
X = chunk.X,
Z = chunk.Z,
PrimaryBitMap = 1,
AddBitMap = 1,
GroundUp = false,
Sunlight = 2
}.Write( Writer );
}
public static void MakeMapChunkPacket( Chunk chunk, SMPPacketWriter Writer )
{
var X = ( int )chunk.X;
var Z = ( int )chunk.Z;
byte[] blockData;
byte[] metadata;
byte[] blockLight;
byte[] skyLight;
ushort mask = 1, chunkY = 0;
bool nonAir = true;
// First pass calculates number of sections to send
int totalSections = 0;
for ( int i = 15; i >= 0; i-- ) {
Section s = chunk.Sections[chunkY++];
if ( s.IsAir )
nonAir = false;
if ( nonAir )
totalSections++;
}
mask = 1;
chunkY = 0;
nonAir = true;
blockData = new byte[totalSections * BlockDataLength];
metadata = new byte[totalSections * NibbleDataLength];
blockLight = new byte[totalSections * NibbleDataLength];
skyLight = new byte[totalSections * NibbleDataLength];
ushort PrimaryBitMap = 0, AddBitMap = 0;
// Second pass produces the arrays
for ( int i = 15; i >= 0; i-- ) {
Section s = chunk.Sections[chunkY++];
if ( s.IsAir )
nonAir = false;
if ( nonAir ) {
Array.Copy( s.Blocks, 0, blockData, ( chunkY - 1 ) * BlockDataLength, BlockDataLength );
Array.Copy( s.Metadata.Data, 0, metadata, ( chunkY - 1 ) * NibbleDataLength, NibbleDataLength );
Array.Copy( s.BlockLight.Data, 0, blockLight, ( chunkY - 1 ) * NibbleDataLength, NibbleDataLength );
Array.Copy( s.SkyLight.Data, 0, skyLight, ( chunkY - 1 ) * NibbleDataLength, NibbleDataLength );
PrimaryBitMap |= mask;
}
mask <<= 1;
}
// Create the final array
// TODO: Merge this into the other loop, reduce objects
byte[] data = new byte[blockData.Length + metadata.Length +
blockLight.Length + skyLight.Length + chunk.Biomes.Length];
int index = 0;
Array.Copy( blockData, 0, data, index, blockData.Length );
index += blockData.Length;
Array.Copy( metadata, 0, data, index, metadata.Length );
index += metadata.Length;
Array.Copy( blockLight, 0, data, index, blockLight.Length );
index += blockLight.Length;
Array.Copy( skyLight, 0, data, index, skyLight.Length );
index += skyLight.Length;
Array.Copy(chunk.Biomes, 0, data, index, chunk.Biomes.Length);
// Compress the array
var result = Ionic.Zlib.ZlibStream.CompressBuffer( data );
var GroundUpContiguous = true;
Logger.LogToConsole( "Chunk length: "+result.Length.ToString() );
Writer.Write( 0x38 );
Writer.Write( X );
Writer.Write( Z );
Writer.Write( GroundUpContiguous );
Writer.Write( PrimaryBitMap );
Writer.Write( AddBitMap );
Writer.Write( result.Length );
Writer.Write( result );
Writer.Flush();
}
public void UpdateChunks()
{
lock ( chunkUpdateLock ) {
Position pos = WorldManager.MainWorld.Map.Spawn;
// Get neccesary chunk range
int RequiredMinX = ( int )( ( int )pos.X / 16 ) - ( ChunkArea / 2 );
int RequiredMinZ = ( int )( ( int )pos.Y / 16 ) - ( ChunkArea / 2 );
// Check if new chunks are required
if ( RequiredMinX == LoadedChunksMinX && RequiredMinZ == LoadedChunksMinZ )
return;
List<Chunk> tosend = new List<Chunk>();
// Send Pre-Chunks and Chunks
for ( int Xchunk = RequiredMinX; Xchunk < ( RequiredMinX + ChunkArea ); Xchunk++ ) {
for ( int Zchunk = RequiredMinZ; Zchunk < ( RequiredMinZ + ChunkArea ); Zchunk++ ) {
if ( ( Xchunk >= ( LoadedChunksMinX + ChunkArea ) || Xchunk < ( LoadedChunksMinX ) || Zchunk >= ( LoadedChunksMinZ + ChunkArea ) || Zchunk < ( LoadedChunksMinZ ) ) || ( !HasChunks ) ) {
Chunk chunkToSend = new Chunk( Xchunk, Zchunk, WorldManager.MainWorld );
//Server.world.GetChunk( Xchunk, Zchunk );
if ( chunkToSend == null ) {
Logger.Log( LogType.Error, "Player.UpdateChunks: Error loading or generating chunk! ({0}, {1})", Xchunk, Zchunk );
//session.KickNow( "ERROR: Failed to load or generate chunk! (" + Xchunk + ", " + Zchunk + ")" );
return;
}
// chunkToSend.AddPlayer( this );
if ( !chunkToSend.terrainPopulated )
chunkToSend.CalculateLighting();
tosend.Add( chunkToSend );
SMPPacketWriter.MakeInitChunk( chunkToSend, smpWriter );
SMPPacketWriter.MakeMapChunkPacket( chunkToSend, smpWriter );
// session.SendNow( PacketWriter.MakePreChunk( Xchunk, Zchunk, true ) );
//session.SendNow( PacketWriter.MakeChunk( chunkToSend ) );
}
}
}
}
}
