Update - v0.5.0

Update - Version 0.5.0

New:  

• Ship engine (whit animation).
• Ship weapons (changes with some abilities).
• Abilities:
  • Ray - For 7 seconds, fire a beam that kills every enemy it touches.
  • Invinsibility - Grants invincibility for 5 seconds.

Changes:

• Enemies now have a chance to drop ability recharges.
• Changed all buttons in the game to be consistent.
• The large tree is now on a layer above everything else to give a sense of depth. It has transparency so you can see through it.

A lot of minor changes and fixes.