Physic engine

[lord103]

Hello everyone, I have finished a beta of the physical engine to use in the game, not is much complex, just makes calculations of elasticity (in bad mode), gravity and collisions, but for the game is just that I need. Any suggestion is welcome ;).

http://www.mediafire.com/?0o1zjjdjntm

edit:
-add friction  
-fixed pointer errors
-fix example 2