/// <summary>
/// Inserts/replaces a new chunk on a specified location.
/// </summary>
/// <param name="location">The region location of the chunk.</param>
/// <param name="chunk">The chunk to be added.</param>
public void InsertChunk(MCPoint location, NBTFile chunk)
{
int offset = location.X + (location.Y * 32);
chunks[offset] = chunk;
chunkChanged[offset] = true;
}
/// <summary>
/// Inserts/replaces a new chunk on a specified location.
/// </summary>
/// <param name="location">The region location of the chunk.</param>
/// <param name="chunk">The chunk to be added.</param>
public void InsertChunk(MCPoint location, NBTFile chunk)
{
int offset = location.X + (location.Y * 32);
chunks[offset] = chunk;
chunkChanged[offset] = true;
}
/// <summary>
/// Opens an existing NBT file from a stream.
/// </summary>
/// <param name="stream">The stream to get the NBT file from.</param>
/// <param name="version">The compression version of the NBT, specify '1' for the original gzip compression, '2' for the mcregion zlib compression.</param>
/// <returns>An opened NBT file.</returns>
public static NBTFile OpenFile(Stream stream, int version)
{
NBTFile file = new NBTFile();
Stream compressStream;
if (version == 1)
{
compressStream = new GZipStream(stream, CompressionMode.Decompress);
}
else
{
stream.ReadByte();
stream.ReadByte();
compressStream = new DeflateStream(stream, CompressionMode.Decompress);
}
BinaryReader reader = new BinaryReader(compressStream);
{
Encoding textEncoding = Encoding.UTF8;
file.NamedNBT = reader.ReadByte() == 10;
file.RootName = textEncoding.GetString(reader.ReadBytes(EndiannessConverter.ToInt16(reader.ReadInt16())));
if (file.NamedNBT)
{
byte type;
while ((type = reader.ReadByte()) != 0)
{
string name = textEncoding.GetString(reader.ReadBytes(EndiannessConverter.ToInt16(reader.ReadInt16())));
file.InsertTag(new NBTTag(name, type, file.ReadPayload(ref reader, type)));
}
}
else
{
byte type = reader.ReadByte();
int size = EndiannessConverter.ToInt32(reader.ReadInt32());
for (int i = 0; i < size; i++)
{
file.InsertTag(new NBTTag("", type, file.ReadPayload(ref reader, type)));
}
}
}
reader.Dispose();
compressStream.Dispose();
return(file);
}
/// <summary>
/// Opens the region file from a stream.
/// </summary>
/// <param name="stream">The stream the region file will read from.</param>
/// <returns>The parsed region file.</returns>
public static RegionFile OpenRegion(Stream stream)
{
#if DEBUG
DateTime wStart;
#endif
RegionFile region = new RegionFile();
using (BinaryReader reader = new BinaryReader(stream))
{
int[] sectors = new int[1024];
int[] tstamps = new int[1024];
for (int i = 0; i < 1024; i++)
{
sectors[i] = reader.ReadInt32();
}
for (int i = 0; i < 1024; i++)
{
tstamps[i] = reader.ReadInt32();
}
Thread offsetThread = new Thread(new ThreadStart(() =>
{
int sector = 0;
lock (sectors)
for (int i = 0; i < 1024; i++)
{
sector = EndiannessConverter.ToInt32(sectors[i]);
region.offsets[i] = new McrOffset()
{
SectorSize = (byte)(sector & 0xFF),
SectorOffset = sector >> 8,
};
}
sectors = null;
}));
offsetThread.Name = "offset calculator thread";
offsetThread.Start();
offsetThread.Join();
Thread tstampThread = new Thread(() =>
{
int tstamp = 0;
lock (tstamps)
for (int i = 0; i < 1024; i++)
{
tstamp = EndiannessConverter.ToInt32(tstamps[i]);
region.tstamps[i] = new McrtStamp
{
Timestamp = tstamp,
};
}
tstamps = null;
})
{
Name = "timestamp calculator thread"
};
tstampThread.Start();
tstampThread.Join();
#if DEBUG
wStart = DateTime.Now;
#endif
byte[][] chunkBuffer = new byte[1024][];
{
int length;
McrOffset offset;
for (int i = 0; i < 1024; i++)
{
offset = region.offsets[i];
if (offset.SectorOffset != 0)
{
stream.Seek(offset.SectorOffset * 4096, SeekOrigin.Begin);
length = EndiannessConverter.ToInt32(reader.ReadInt32());
reader.ReadByte();
chunkBuffer[i] = reader.ReadBytes(length - 1);
}
}
}
int chunkSlice = 1024 / MaxTHREADS;
Thread[] workerThreads = new Thread[MaxTHREADS];
{
for (int i = 0; i < MaxTHREADS; i++)
{
byte[][] chunkWorkerBuffer = new byte[chunkSlice][];
Array.Copy(chunkBuffer, i * chunkSlice, chunkWorkerBuffer, 0, chunkSlice);
int index = i;
workerThreads[i] = new Thread(new ThreadStart(() =>
{
#if DEBUG
DateTime start = DateTime.Now;
#endif
int offset = index * (1024 / MaxTHREADS);
MemoryStream mmStream = null;
for (int n = 0; n < chunkWorkerBuffer.Length; n++)
{
byte[] chunk = chunkWorkerBuffer[n];
if (chunk == null)
{
continue;
}
mmStream = new MemoryStream(chunk);
region.chunks[n + offset] = NBTFile.OpenFile(mmStream, 2);
mmStream.Dispose();
}
chunkWorkerBuffer = null;
#if DEBUG
Console.WriteLine("Thread worker " + (index + 1) + " is complete! Took " + (int)(DateTime.Now - start).TotalMilliseconds + "ms to process.");
}));
workerThreads[i].Name = "chunk worker thread " + (index + 1);
#else
}));
/// <summary>
/// Opens an existing NBT file from a stream.
/// </summary>
/// <param name="stream">The stream to get the NBT file from.</param>
/// <param name="version">The compression version of the NBT, specify '1' for the original gzip compression, '2' for the mcregion zlib compression.</param>
/// <returns>An opened NBT file.</returns>
public static NBTFile OpenFile(Stream stream, int version)
{
NBTFile file = new NBTFile();
Stream compressStream;
if (version == 1)
{
compressStream = new GZipStream(stream, CompressionMode.Decompress);
}
else
{
stream.ReadByte();
stream.ReadByte();
compressStream = new DeflateStream(stream, CompressionMode.Decompress);
}
BinaryReader reader = new BinaryReader(compressStream);
{
Encoding textEncoding = Encoding.UTF8;
file.NamedNBT = reader.ReadByte() == 10;
file.RootName = textEncoding.GetString(reader.ReadBytes(EndiannessConverter.ToInt16(reader.ReadInt16())));
if (file.NamedNBT)
{
byte type;
while ((type = reader.ReadByte()) != 0)
{
string name = textEncoding.GetString(reader.ReadBytes(EndiannessConverter.ToInt16(reader.ReadInt16())));
file.InsertTag(new NBTTag(name, type, file.ReadPayload(ref reader, type)));
}
}
else
{
byte type = reader.ReadByte();
int size = EndiannessConverter.ToInt32(reader.ReadInt32());
for (int i = 0; i < size; i++)
{
file.InsertTag(new NBTTag("", type, file.ReadPayload(ref reader, type)));
}
}
}
reader.Dispose();
compressStream.Dispose();
return file;
}
