IOBuffer *PacketCrafter::SendChunk(int x, int z, MapChunk *chunk)
{
    BYTE compressed[81920];

    int length = chunk->Serialize(compressed, 81920);
    if (length == 0)
        return NULL;

    IOBuffer *buffer = BufferPool::GetFreeBuffer();

    HANDLE lock = buffer->Lock();

    buffer->WriteByte(sMapChunk);
    buffer->WriteDword(x * 16);
    buffer->WriteWord(0);
    buffer->WriteDword(z * 16);
    buffer->WriteByte(15);
    buffer->WriteByte(127);
    buffer->WriteByte(15);
    buffer->WriteDword((DWORD)length);
    buffer->WriteArbitrary(compressed, (DWORD)length);

    buffer->Unlock(lock);

    return buffer;
}