/// <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 OpenTag(Stream stream, int version)
{
var 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);
}
var 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)
{
file.InsertTag(new NbtTag(textEncoding.GetString(reader.ReadBytes(EndiannessConverter.ToInt16(reader.ReadInt16()))), (NbtTagType)type, ReadPayload(ref reader, type)));
}
}
else
{
var type = reader.ReadByte();
var size = EndiannessConverter.ToInt32(reader.ReadInt32());
for (int i = 0; i < size; i++)
{
file.InsertTag(new NbtTag("", (NbtTagType)type, ReadPayload(ref reader, type)));
}
}
}
reader.Dispose();
compressStream.Dispose();
return file;
}
