Minor game optimizations. Distances in enemy class no longer calculated every frame.
Minor game optimizations. Distances in enemy class no longer calculated every frame.

petarov/game-off-2012,petarov/game-off-2012,vukanac/game-off-2012,petarov/game-off-2012,vukanac/game-off-2012,vukanac/game-off-2012