Initialize pygame modules on game creation.
Initialize pygame modules on game creation.

file:a/game.py -> file:b/game.py
--- a/game.py
+++ b/game.py
@@ -12,6 +12,7 @@
         self.screenSize=size
 
         # Initialize PyGame
+        pygame.init()
         self.screen=pygame.display.set_mode(size)
         self.clock=pygame.time.Clock()
         self.objects=[]