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  #1  
Old 03-10-2009, 01:39 AM
nlfrnassimi nlfrnassimi is offline
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Join Date: Feb 2009
Posts: 37
stop physic

Hi,

I have created a simple bouncing ball. I want it to stop when it reaches a particular point. But I don't know how. I'll appreciate any help.

Here is my code for ball:


import viz

viz.go()

viz.phys.enable()

ground = viz.add('tut_ground.wrl') # Add ground
ground.collidePlane() # Make collideable plane
ball = viz.add('ball.wrl',pos=[0,.2,6]) # Add a ball
ballPhys = ball.collideSphere(bounce = 2) # Enable physics on ball
ball.applyForce([0,.3,.2],0.5) # Apply small force for half a second
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  #2  
Old 03-10-2009, 12:07 PM
Jeff Jeff is offline
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Join Date: Aug 2008
Posts: 2,471
You could use a timer and get the position of the ball. Once its position has reached the point you specify you can either disable physics for the scene
Code:
viz.phys.disable()
or for just the ball
Code:
ball.disable(viz.PHYSICS)
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  #3  
Old 03-10-2009, 06:25 PM
nlfrnassimi nlfrnassimi is offline
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Join Date: Feb 2009
Posts: 37
Can you please tell me how should I use the timer to get the ball position?

Thanks alot
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  #4  
Old 03-11-2009, 02:43 PM
Jeff Jeff is offline
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Join Date: Aug 2008
Posts: 2,471
When the z coordinate of the ball is greater than 10 it will stop
Code:
def stopball():
	
	pos = ball.getPosition()
	if pos[2] > 10:
		ball.disable(viz.PHYSICS)
	
	
vizact.ontimer(0,stopball)
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  #5  
Old 03-11-2009, 08:26 PM
nlfrnassimi nlfrnassimi is offline
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Posts: 37
Thanks alot for your help
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