Update 0.1.1

Enemies behave like a piece of wood so it's time to change it

• They will move at you when taken a shot. No more distant trolling
• They will take some pals who was nearby. In fact - all of them so keep in mind

Other changes:

• planets are now closer to each other
• finally made progressive upgrades cost

Personal notes: the game feels a bit more fun with that. I'll be very happy with any feedback!