Hey, I'm making my own 'physics' engine type thing that I will apply to a semi-isometric game. In any case, a big problem for me was finding a way to get objects to bounce properly.
Whenever I encounter a big problem, I make a new little example that focuses entirely on that problem till I work it out.
In any case, while most of you might not find this very useful, I'll put it here for anyone that wants it. Plus I think it's kinda cool
Of course it only works if you know the angle of the wall you're bouncing off.
http://www.fileshack.us/get_file.php?id ... =Angle.cap