Implemented a QuadTree. Stills bugs a bit with collisions (somtimes balls "glue" together)
Need some small modifications for gravity, shouldn't be to hard.
Made Some small adjustments on the QuadTree code
QuadTree Collisiondetection and CollisionMerge is *working* Non-optimal implementation, but much faster than previosly anyway.
Added option to show/hide quadtree.
Implemented gravity methodes in the QuadTree.
Discvered bug in Collisionmerge. Fix later.
implemented gravity
includeerrors, have to fix
Gravity mostly working and compiling stil problems with mergecolide using QuadTree.
Neede to refactor code in fewer files. Not really satisfied.
Fixed small error in zooming