# Collisions help

**URL:** <https://forum.kirupa.com/t/collisions-help/173072>\
**Category:** programming\
**Created:** [December 20, 2005, 10:34pm UTC](https://forum.kirupa.com/t/collisions-help/173072 "2005-12-20T22:34:07Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![skatingmunk](https://avatars.discourse-cdn.com/v4/letter/s/3da27b/32.png) [@skatingmunk](https://forum.kirupa.com/u/skatingmunk)\
**Post date:** [December 20, 2005, 10:34pm UTC](https://forum.kirupa.com/t/collisions-help/173072/1 "2005-12-20T22:34:07Z")

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how would i make an oblejct stop once it hits another such as a game sprite not walking through a wall or not falling through a platform?