[aatish]

I'd started off this project by using a fancier ray-tracing method of detecting and avoiding collisions with arbitrary shaped objects. Unfortunately it was just too slow for satisfying real-time performance. So finally, I went with doing the collision detection in a case-by-case way for more simple shapes (ball, table, etc.). The poles would be easy to add as an option, I may try to add that in. Thanks for the suggestion!