# Looking for techniques on coding enemy formations

**URL:** <https://forum.kirupa.com/t/looking-for-techniques-on-coding-enemy-formations/56092>\
**Category:** programming\
**Created:** [June 30, 2004, 12:49pm UTC](https://forum.kirupa.com/t/looking-for-techniques-on-coding-enemy-formations/56092 "2004-06-30T12:49:15Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![drcolossus](https://avatars.discourse-cdn.com/v4/letter/d/ba9def/32.png) [@drcolossus](https://forum.kirupa.com/u/drcolossus)\
**Post date:** [June 30, 2004, 12:49pm UTC](https://forum.kirupa.com/t/looking-for-techniques-on-coding-enemy-formations/56092/1 "2004-06-30T12:49:15Z")

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Basically I want to write routines for my vertical shooter currently developed with that I can let enemy waves flying into the screen like in many popular shoot’em’ups. They move in a sinus wave or in circles and various other formations. I need to get some hints or sources on how to start writing such formations. Any help would be very much appreaciated!