public long UnpackLong()
{
byte b = reader.ReadByte();
if (MsgPack.IsPositiveFixnum(b))
{
return(b);
}
if (MsgPack.IsNegativeFixnum(b))
{
return((sbyte)b);
}
switch (b)
{
case MsgPack.UInt8Type:
return(reader.ReadByte());
case MsgPack.UInt16Type:
return(reader.ReadUInt16());
case MsgPack.UInt32Type:
return(reader.ReadUInt32());
case MsgPack.UInt64Type:
var v = reader.ReadUInt64();
if (v > long.MaxValue)
{
throw new MessagePackOverflowException("long");
}
return((long)v);
case MsgPack.Int8Type:
return((sbyte)reader.ReadByte());
case MsgPack.Int16Type:
return(reader.ReadInt16());
case MsgPack.Int32Type:
return(reader.ReadInt32());
case MsgPack.Int64Type:
return(reader.ReadInt64());
default:
throw new MessageTypeException();
}
}
private void parse()
{
BinaryReaderBigEndian reader = new BinaryReaderBigEndian(new MemoryStream(source.Data));
if (string.Join("", reader.ReadChars(Signature.Length)) != Signature)
{
throw new Exception("signature not found");
}
Width = reader.ReadInt16();
Height = reader.ReadInt16();
if (Width <= 0 || Height <= 0)
{
throw new Exception($"invalid dimensions encountered: width={Width}, height={Height}");
}
int unknown = reader.ReadInt16();
if (unknown != 9)
{
throw new Exception($"invalid unknown constant: {unknown}");
}
int num = Width * Height;
Cells = new MapCell[Width, Height];
for (int y = 0; y < Height; y++)
{
for (int x = 0; x < Width; x++)
{
ushort value = reader.ReadUInt16();
Cells[x, y] = new MapCell()
{
Tile = value & 0b0000_0001_1111_1111, Type = value >> 9
};
}
}
if (reader.BaseStream.Position != reader.BaseStream.Length)
{
throw new Exception($"missed {reader.BaseStream.Length - reader.BaseStream.Position} extra bytes at end of file");
}
}
}