[Moh200jo]

I have tried to use box1.collidingwith(box2) but this made the game meet the condition once I run the code

 ball=0
def task1():
global ball
	while ball <4:
		action=box1.collidingwith(box2)
		yield viztask.waitEvent(action)
		ball +=1
		
		print 'Number of Balls is : ',ball