Gave NPCs a comfort zone and made enemies attack.

The comfort zone for enemies is much larger than for friends. Friends
don't do anything yet, but enemies will move towards the player, shooting.
Enemys will not move randomly when the player is in their comfort zone.
Made NPCs not move towards player.

The NPCs that the player is in the comfort of (both friendly and enemy)
will no longer move towards the player when they are in their comfort
zone.