Maescool/Catacomb-Snatch — pull request #685 by LordofMaps (2012-03-02 22:21:53+00:00)
Title: Abstract ItemShop

Changed ShopItem to an abstract class. Each item (Turret, Harvester, Bomb) is now a subclass of ShopItem. This should allow new items to be more easily added in the future and for great flexibility with those
item. For example: each item could place the tool tip at a different location on the screen or have an onTick effect when triggered.