http://nehe.gamedev.net/tutorial/col...tection/17005/ http://nehe.gamedev.net/tutorial/collision_detection/17005/ http://nehe.gamedev.net/tutorial/collision_detection/17005/ http://nehe.gamedev.net/tutorial/col...tection/17005/ http://nehe.gamedev.net/tutorial/collision_detection/17005/ http://nehe.gamedev.net/tutorial/col...tection/17005/ http://nehe.gamedev.net/tutorial/collision_detection/17005/ NeHe: Collision Detection