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The collision detection for my breakout clone is a bit strange sometimes. Paddle / ball collisions work fine, but brick / ball aren't handled very well. Sometimes the ball passes almost all the way through a brick before it's killed (sometimes it works perfectly). Anyone else have the same problem?

post some code :-)

I was just playing with the debugger (you mentioned it in another reply to one of my questions) and I noticed that the collision boxes were not surrounding my entities because I gave them the wrong size when I spawned them. Duh!

:-)

remeber that you can play with

size: {x: 32, y: 32},
offset:{x:28 , y:40},

in your entity settings
Then you can set a smaller hitbox then graphics.

It's probably because your ball is colliding with two blocks during the same frame along the same axis. For example, the ball is travelling to the right, and it hits a block on the left side and gets reflected to the left; however, it also collided with another block on the same frame, which reflected it again - right back in the same direction it was going!