Post Jam Update

Quick post jam update, things I would have added in the jam if it wasn't 5 am as I was finishing up. Just minor bug fixes and tweaks.

Bug Fixes:

• Made guns actually shoot from the end of their barrel when facing to the left
• Fixed snowballs bouncing right when they left the cannon and going the opposite direction
• Rockets no longer hit the floor and explode right away when shot out

Tweaks:

• Assault rifle now has 50% less ammo as it was a bit over powered before
• Raised one map's roof to give more space