public void SaveChunks(Chunk[] chunks)
{
int width = 32;
int depth = 32;
Chunk chunk = chunks[0];
int rx = chunk.X >> 5;
int rz = chunk.Z >> 5;
string filePath = Path.Combine(this.WorldPath, $@"region/r.{rx}.{rz}.mca");
if (!File.Exists(filePath))
{
Directory.CreateDirectory(this.RegionPath);
using (var regionFile = File.Open(filePath, FileMode.CreateNew))
{
byte[] buffer = new byte[8192];
regionFile.Write(buffer, 0, buffer.Length);
}
}
using (var regionFile = File.Open(filePath, FileMode.Open))
{
byte[] buffer = new byte[8192];
regionFile.Read(buffer, 0, buffer.Length);
for (int i = 0; i < chunks.Length; i++)
{
chunk = chunks[i];
int xi = (chunk.X % width);
if (xi < 0)
{
xi += 32;
}
int zi = (chunk.Z % depth);
if (zi < 0)
{
zi += 32;
}
int tableOffset = (xi + zi * width) * 4;
regionFile.Seek(tableOffset, SeekOrigin.Begin);
byte[] offsetBuffer = new byte[4];
regionFile.Read(offsetBuffer, 0, 3);
Array.Reverse(offsetBuffer);
int offset = BitConverter.ToInt32(offsetBuffer, 0) << 4;
byte sectorCount = (byte)regionFile.ReadByte();
byte[] nbtBuf = NBTIO.WriteZLIBFile(this.ChunkFormat.NBTSerialize(chunk));
int nbtLength = nbtBuf.Length;
byte nbtSectorCount = (byte)Math.Ceiling(nbtLength / 4096d);
if (offset == 0 || sectorCount == 0 || nbtSectorCount > sectorCount)
{
regionFile.Seek(0, SeekOrigin.End);
offset = (int)((int)regionFile.Position & 0xfffffff0);
regionFile.Seek(tableOffset, SeekOrigin.Begin);
byte[] bytes = BitConverter.GetBytes(offset >> 4);
Array.Reverse(bytes);
regionFile.Write(bytes, 0, 3);
regionFile.WriteByte(nbtSectorCount);
}
byte[] lenghtBytes = BitConverter.GetBytes(nbtLength + 1);
Array.Reverse(lenghtBytes);
regionFile.Seek(offset, SeekOrigin.Begin);
regionFile.Write(lenghtBytes, 0, 4);
regionFile.WriteByte(0x02);
regionFile.Write(nbtBuf, 0, nbtBuf.Length);
int reminder;
Math.DivRem(nbtLength + 4, 4096, out reminder);
byte[] padding = new byte[4096 - reminder];
if (padding.Length > 0)
{
regionFile.Write(padding, 0, padding.Length);
}
}
}
}
public void Write(string filePath, ChunkData[] datas)
{
const int width = 32;
const int depth = 32;
File.Copy(RegionPath, filePath);
using (var regionFile = File.Open(filePath, FileMode.Open))
{
byte[] buffer = new byte[8192];
regionFile.Read(buffer, 0, buffer.Length);
for (int i = 0; i < datas.Length; i++)
{
ChunkData data = datas[i];
int xi = (data.ChunkOffset.Item1 % width);
if (xi < 0)
{
xi += 32;
}
int zi = (data.ChunkOffset.Item2 % depth);
if (zi < 0)
{
zi += 32;
}
int tableOffset = (xi + zi * width) * 4;
regionFile.Seek(tableOffset, SeekOrigin.Begin);
byte[] offsetBuffer = new byte[4];
regionFile.Read(offsetBuffer, 0, 3);
Array.Reverse(offsetBuffer);
int offset = BitConverter.ToInt32(offsetBuffer, 0) << 4;
byte sectorCount = (byte)regionFile.ReadByte();
byte[] nbtBuf = NBTIO.WriteZLIBFile(new CompoundTag().PutCompound("", data.Data), NBTEndian.BIG_ENDIAN);
int nbtLength = nbtBuf.Length;
byte nbtSectorCount = (byte)Math.Ceiling(nbtLength / 4096d);
if (offset == 0 || sectorCount == 0 || nbtSectorCount > sectorCount)
{
regionFile.Seek(0, SeekOrigin.End);
offset = (int)((int)regionFile.Position & 0xfffffff0);
regionFile.Seek(tableOffset, SeekOrigin.Begin);
byte[] bytes = BitConverter.GetBytes(offset >> 4);
Array.Reverse(bytes);
regionFile.Write(bytes, 0, 3);
regionFile.WriteByte(nbtSectorCount);
}
byte[] lenghtBytes = BitConverter.GetBytes(nbtLength + 1);
Array.Reverse(lenghtBytes);
regionFile.Seek(offset, SeekOrigin.Begin);
regionFile.Write(lenghtBytes, 0, 4);
regionFile.WriteByte(0x02);
regionFile.Write(nbtBuf, 0, nbtBuf.Length);
int reminder;
Math.DivRem(nbtLength + 4, 4096, out reminder);
byte[] padding = new byte[4096 - reminder];
if (padding.Length > 0)
{
regionFile.Write(padding, 0, padding.Length);
}
}
}
}
public void Save(Chunk chunk)
{
string filePath = this.FilePath;
int width = 32;
int depth = 32;
if (!File.Exists(filePath))
{
Directory.CreateDirectory(filePath);
using (FileStream regionFile = File.Open(filePath, FileMode.CreateNew))
{
byte[] buffer = new byte[8192];
regionFile.Write(buffer, 0, buffer.Length);
}
}
using (FileStream regionFile = File.Open(filePath, FileMode.Open))
{
byte[] buffer = new byte[8192];
regionFile.Read(buffer, 0, buffer.Length);
int xi = (chunk.X % width);
if (xi < 0)
{
xi += 32;
}
int zi = (chunk.Z % depth);
if (zi < 0)
{
zi += 32;
}
int tableOffset = (xi + zi * width) * 4;
regionFile.Seek(tableOffset, SeekOrigin.Begin);
byte[] offsetBuffer = new byte[4];
regionFile.Read(offsetBuffer, 0, 3);
Array.Reverse(offsetBuffer);
int offset = BitConverter.ToInt32(offsetBuffer, 0) << 4;
byte sectorCount = (byte)regionFile.ReadByte();
byte[] nbtBuf = NBTIO.WriteZLIBFile(this.Provider.SerializeChunk(chunk), NBTEndian.BIG_ENDIAN);
int nbtLength = nbtBuf.Length;
byte nbtSectorCount = (byte)Math.Ceiling(nbtLength / 4096d);
if (offset == 0 || sectorCount == 0 || nbtSectorCount > sectorCount)
{
regionFile.Seek(0, SeekOrigin.End);
offset = (int)((int)regionFile.Position & 0xfffffff0);
regionFile.Seek(tableOffset, SeekOrigin.Begin);
byte[] bytes = BitConverter.GetBytes(offset >> 4);
Array.Reverse(bytes);
regionFile.Write(bytes, 0, 3);
regionFile.WriteByte(nbtSectorCount);
}
byte[] lenghtBytes = BitConverter.GetBytes(nbtLength + 1);
Array.Reverse(lenghtBytes);
regionFile.Seek(offset, SeekOrigin.Begin);
regionFile.Write(lenghtBytes, 0, 4);
regionFile.WriteByte(0x02);
regionFile.Write(nbtBuf, 0, nbtBuf.Length);
Math.DivRem(nbtLength + 4, 4096, out int reminder);
byte[] padding = new byte[4096 - reminder];
if (padding.Length > 0)
{
regionFile.Write(padding, 0, padding.Length);
}
}
}