little demo of a collision system with gravity. Songs are from newgrounds:
(1) "The Dust and the Devil" by primal-instinct
(2) "Ode to Nazi Zombies" by Khalillondon
You can get the executable of this program here: http://www.filefactory.com/file/b0c214a/n/GDKtest.exe
the source code is posted here: http://forum.thegamecreators.com/?m=forum_view&t=167604&b=6
[update]
source code to this and other stuff is now up here:
http://www.neurofuzzydev.com/downloads/