** fix Biped not being properly connected and disconnected from the map when doing physics.

-> implement damage
-> projectile lifetime
-> biped melee damage

-> implment sound
-> looping sounds
-> spatial aware sounds (3d listener)
-> [extra] add "EAX" sound effects

-> fix biped movement
-> not properly being connected/disconnected when doing physics
-> need to implement handling multiple surface connections
-> disable collision with certain object (weapons/bipeds)
-> handle biped-biped collision properly

-> implement "point" collision for spherical/capsule collision

-> particle rendering or hs compiler work
-> todo