reseting actions

[nlfrnassimi]

Hi, I have created a test code. In my code there is a ball that waits 5 seconds before it changes color, and according to the color changing there are balls moving around. after the actions have taken place, I want to reset them so that everything starts from the beginning. How can I do that?

Here is my code:

import viz

viz.go()

import viztask

viz.clearcolor( viz.SKYBLUE )
viz.add( 'tut_ground.wrl' )
ball1 = viz.add( 'white_ball.wrl' )
ball1.setPosition( 0, 3, 4 )

ball2 = viz.add('soccerball.ive')
ball2.setPosition(2,0.3,6)

ball3 = viz.add('soccerball.ive')
ball3.setPosition(-2,0.3,4)




def changeColor():
	while True:
		
		
		color = ball1.color(viz.RED)
		moveball2()

		yield viztask.waitTime( 5 ) 
		
	
		color = ball1.color(viz.YELLOW)
		moveball3()
	
		yield viztask.waitTime(5)
		

		color = ball1.color(viz.GREEN)
		rotateball3()
		safe()

		yield viztask.waitTime( 5 )
		stopRotate()
		
	
		
viztask.schedule( changeColor() )

def moveball2 ():
	ball2.addAction( vizact.goto ([-1,2,6] ) )
	

	
def moveball3 ():
	ball3.addAction( vizact.goto ([2,2,6] ) )
	
def rotateball3 ():
	ball3.addAction( vizact.spin([0,1,0],90,viz.FOREVER,100))

def stopRotate ():
	ball3.endAction()
	
def safe() :
	safe = viz.addText('SAFE', viz.WORLD)
	safe.setPosition(-1,2,5)
	safe.scale(.5,.5)