I'm a coder interested in game development, and I want to build a very simple p2p (real time) game. The perfect example for this is haxball.

The client/server model doesn't matter, it could be like haxball (i.e. the room creator is the host) or changing host, or the server is host (if there is such a thing)

I just want to learn the basics to create a field where players can move their characters in real time. So where should I start? Please guide me into the right direction. And with examples please.

I found out that RTMFP does what I seek, but how do I use it?

I know ActionScript 3.0, but no idea how to setup a multiplayer game. Please help !

Thanks in advance.