Collision Response doesn't work properly

[Jesper Juhl]

Would you mind explaining how you generate the movement? I need something like that for a game and the best I can do is make all circles bounce like they would off a wall (reverse x or y part of velocity)

If you want realistic collision response you could start by reading this:
http://www.gamasutra.com/view/feature/131424/pool_hall_lessons_fast_accurate_.php?print=1

[Cadisol87]

Apart from the fact that this question doesn't have much to do with my problem:
Yes, my code is based on the one from the tutorial mentioned by Jesper Juhl

[Raincode]

That's complicated, and awesome. Thanks so much! Would have never known what to search for thanks!