For the last Ludum Dare, I started using Flixel, but ran into problems with how it handled rotation and nested sprites. As a result, on Saturday night I tore out Flixel, and started throwing together a quick DisplayObject-based replacement framework, including some basic rigid-body physics. I didn’t finish in time for the end of Ludum Dare, but since then I’ve cleaned it up somewhat and fixed the worst of the bugs.
Here’s a brief bouncing-balls demo. The balls have an elasticity greater than one, meaning they gain energy from collisions. The world wraps horizontally. If you wait a bit, you can see the balls go through a phase transition similar to what happens to photons in a laser.
