distance-based collision stand-in

Signed-off-by: Bjorn Westergard <bjornwestergard@Bjorns-MacBook-Pro.local>
Collision detection with sat-js. Added some missing files.

Signed-off-by: Bjorn Westergard <bjornwestergard@Bjorns-MacBook-Pro.local>
Reticules

Signed-off-by: Bjorn Westergard <bjornwestergard@Bjorns-MacBook-Pro.local>