Added game mechanics

Enemies collide with the line and it is destroyed. Started working on
the enemy destroying if they are in the cutted area.
Prefab binary differ.
Merge remote-tracking branch 'origin/Eemelin-oksa' into Petri-branch
Merge remote-tracking branch 'origin/Eemelin-oksa' into Dev2
Now i do not know
Merge remote-tracking branch 'origin/Petri-branch' into tmp
wat

kj
wat

wat