First - great library. I spent some time trying to understand Box2d - then gave up, and found Chipmunk much easier to figure out. Its been a while since I looked at C, so to fully understand it I'm converting it to Actionscript 3 (its a bit like Java if your not familiar with the language).
I've got a basic demo running:
- poly/poly collisions
- contact point & arbiters
- rigid body dynamics
- basic engine
I've fully OO'ed it - once its working I'll optimize it for Actionscript (a fun job, that will i part require manual inlining of all vector operations
A very very (very) basic demo of this is here:
Next task - get that spacial hashing working.....