Still no play screenshots yet. But I can report that the code is progressing and I need to do one more major thing before there is a real "gameplay" going on: collision behavior. Kind of a nasty subject - it's easy to make things STOP if they touch a wall - just set their speeds to zero and push them out if they're inside, but the artful thing is to allow colliding objects to brush against each other or at least bounce.

I'm a bit worried that my collision system won't be flexible enough to get a "perfect" behavior. Flexible performance-wise, that is. It was made to do "test everything against everything each frame" very fast, but I didn't include any "what-if" test for doing behavior resolution. It might be easy to add, I dunno...