fix crash when left player is bot

games/balancep0ng.py

@@ -186,7 +186,7 @@ class B4lancePong(object):
 
         while max(scoreLeft, scoreRight) < __MAX_SCORE__:
             winner = self.__playground.play()
-            if winner is self.__players[0].ownPaddle:
+            if winner is self.__playground.leftPaddle:
                 scoreLeft += 1
             else:
                 scoreRight += 1