cvan/seaball — pull request #1 by mattbasta (2013-12-23 06:55:34+00:00)
Title: Fix adjacent collision errors

If you don't shrink both, you get the issue where one ball grows at a rate that causes a collision with an adjacent ball that shrinks at the same rate. On each tick, the balls collide (in the same order, since they have the same indices between ticks), causing the ringing effect that you hear.