# What is the best collision detection for games

**URL:** <https://forum.kirupa.com/t/what-is-the-best-collision-detection-for-games/309419>\
**Category:** flash\
**Created:** [May 14, 2010, 2:10pm UTC](https://forum.kirupa.com/t/what-is-the-best-collision-detection-for-games/309419 "2010-05-14T14:10:00Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Kreender](https://avatars.discourse-cdn.com/v4/letter/k/f19dbf/32.png) [@Kreender](https://forum.kirupa.com/u/Kreender)\
**Post date:** [May 14, 2010, 2:10pm UTC](https://forum.kirupa.com/t/what-is-the-best-collision-detection-for-games/309419/1 "2010-05-14T14:10:00Z")

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Hi, I was wondering what classes do you use for good collision detection for games and similar, I have used Corey Oneil’s CDK (Collision Detection Kit [http://www.coreyoneil.com/portfolio/index.php?project=5](http://www.coreyoneil.com/portfolio/index.php?project=5)) and an as3 port of the Grant Skinner method ([http://labs.boulevart.be/index.php/2007/06/08/skinner-collision-detection-in-as3/](http://labs.boulevart.be/index.php/2007/06/08/skinner-collision-detection-in-as3/)) but here’s the issue, with the cdk the problem is that I’m using flashdevelop and the compiler is kind of strict so I have to rewrite a lot of thing that function in the normal flash compiler, the gskinner port has a problem about some null object reference.  
I was wondering if any of you could recommend me some classes or tell me how do you handle your collision detection.

Thanks for reading.