Bug: Weird enemy movement bug

[RusLanParty]

Ocassionally enemies just "fall" down when reaching the edge of the screen, instead of moving down slightly and changing X direction

[RusLanParty]

Found the reason. The formation changes it's direction and goes down a bit whenever a single enemy touches the edge. Sometimes when reaching the edge all the row is simultaneously considered as touching the edge so it goes down "a bit" * row.
Will fix later