draklib.protocol.packet source code

1 module draklib.protocol.packet;
2 import draklib.bytestream;
3 import draklib.util : NotImplementedException;
4 
5 abstract class Packet {
6 	void encode(out byte[] data) {
7 		ByteStream stream = ByteStream.alloc(getSize());
8 		stream.writeUByte(getID());
9 		_encode(stream);
10 		data = stream.getBuffer().dup;
11 		stream.clear();
12 	}
13 
14 	void decode(byte[] data) {
15 		ByteStream stream = ByteStream.wrap(data);
16 		stream.skip(1); // ID
17 		_decode(stream);
18 	}
19 
20 	protected void _encode(ref ByteStream stream) {
21 		throw new NotImplementedException("Encoding has not been implemented by underlying class.");
22 	}
23 
24 	protected void _decode(ref ByteStream stream) {
25 		throw new NotImplementedException("Decoding has not been implemented by underlying class.");
26 	}
27 
28 	abstract uint getSize();
29 	abstract ubyte getID();
30 }