Client Mods

Alright, so I'd like to try to expand out to client mods at some point. I have done a lot of RR scripts and want to try moving out to other things soon. After I get the trade bot done I will at least.

My main question is how I would be recieving and editing the packets using java. I'd need some way to parse the packets right? Anyone have any resources that might help me here? In fact, this is something I will need to learn in order to progress at all beyond rr scripts when the time comes.

You could take a look at the RR Source.