// Server sending chunk information to Client
public void SendChunk(Chunk c)
{
// {CODE} [ChunkPos] [blockSize] [hpSize] [stateSize] | Respective data
int headerSize = RegionFileHandler.chunkHeaderSize;
int blockDataSize = Compression.CompressBlocks(c, NetMessage.buffer, 21 + headerSize);
int hpDataSize = Compression.CompressMetadataHP(c, NetMessage.buffer, 21 + headerSize + blockDataSize);
int stateDataSize = Compression.CompressMetadataState(c, NetMessage.buffer, 21 + headerSize + blockDataSize + hpDataSize);
NetDecoder.WriteChunkPos(c.pos, NetMessage.buffer, 1);
NetDecoder.WriteInt(blockDataSize, NetMessage.buffer, 9);
NetDecoder.WriteInt(hpDataSize, NetMessage.buffer, 13);
NetDecoder.WriteInt(stateDataSize, NetMessage.buffer, 17);
byte[] header = c.GetHeader();
Array.Copy(header, 0, NetMessage.buffer, 21, headerSize);
this.size = 21 + headerSize + blockDataSize + hpDataSize + stateDataSize;
}
// Saves a chunk to RDF file using Pallete-based Compression
public void SaveChunk(Chunk c)
{
int totalSize = 0;
long seekPosition = 0;
int blockSize;
int hpSize;
int stateSize;
long chunkCode = GetLinearRegionCoords(c.pos);
int lastKnownSize = 0;
GetCorrectRegion(c.pos);
// Reads pre-save size if is already indexed
if (IsIndexed(c.pos))
{
byte biome = 0;
byte gen = 0;
int blockdata = 0;
int hpdata = 0;
int statedata = 0;
ReadHeader(c.pos);
InterpretHeader(ref biome, ref gen, ref blockdata, ref hpdata, ref statedata);
lastKnownSize = chunkHeaderSize + blockdata + hpdata + statedata;
}
// Saves data to buffers and gets total size
blockSize = Compression.CompressBlocks(c, blockBuffer);
hpSize = Compression.CompressMetadataHP(c, hpBuffer);
stateSize = Compression.CompressMetadataState(c, stateBuffer);
InitializeHeader(c, blockSize, hpSize, stateSize);
totalSize = chunkHeaderSize + blockSize + hpSize + stateSize;
// If Chunk was already saved
if (IsIndexed(c.pos))
{
ChunkPos regionPos = ConvertToRegion(c.pos);
this.pool[regionPos].AddHole(this.pool[regionPos].index[chunkCode], lastKnownSize);
seekPosition = this.pool[regionPos].FindPosition(totalSize);
this.pool[regionPos].SaveHoles();
// If position in RegionFile has changed
if (seekPosition != this.pool[regionPos].index[chunkCode])
{
this.pool[regionPos].index[chunkCode] = seekPosition;
this.pool[regionPos].UnloadIndex();
}
// Saves Chunk
this.pool[regionPos].Write(seekPosition, headerBuffer, chunkHeaderSize);
this.pool[regionPos].Write(seekPosition + chunkHeaderSize, blockBuffer, blockSize);
this.pool[regionPos].Write(seekPosition + chunkHeaderSize + blockSize, hpBuffer, hpSize);
this.pool[regionPos].Write(seekPosition + chunkHeaderSize + blockSize + hpSize, stateBuffer, stateSize);
}
// If it's a new Chunk
else
{
ChunkPos regionPos = ConvertToRegion(c.pos);
seekPosition = this.pool[regionPos].FindPosition(totalSize);
this.pool[regionPos].SaveHoles();
// Adds new chunk to Index
this.pool[regionPos].index.Add(chunkCode, seekPosition);
AddEntryIndex(chunkCode, seekPosition);
this.pool[regionPos].indexFile.Write(indexArray, 0, 16);
this.pool[regionPos].indexFile.Flush();
// Saves Chunk
this.pool[regionPos].Write(seekPosition, headerBuffer, chunkHeaderSize);
this.pool[regionPos].Write(seekPosition + chunkHeaderSize, blockBuffer, blockSize);
this.pool[regionPos].Write(seekPosition + chunkHeaderSize + blockSize, hpBuffer, hpSize);
this.pool[regionPos].Write(seekPosition + chunkHeaderSize + blockSize + hpSize, stateBuffer, stateSize);
}
}