Enemies shoot (with amazing accuracy)
Layer-based collision
Stickies inherit collision layer
Added an (unimplmented) Unstick method
A HittableSticky component
Hitter not responsible for destroying Hittable
Saved physics layer stuff
Added a debug message to HittableSticky
Added HittableSticky to the prefabs
Added some randomness to the enemies
Got rid of a debug message
Merge branch 'master' into shooting-enmies
Set collision layers again