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  #1  
Old 07-03-2010, 11:41 AM
moneim230 moneim230 is offline
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Join Date: Oct 2009
Posts: 18
Question Physics - addThruster

Hello,
i applied a constant force on an object and i wanted to change its value
Code:
F=[0,0,0]
def UpdateThruster():
	force=ball.addThruster(mode=viz.ABS_GLOBAL,force=F)
vizact.ontimer(0,UpdateThruster)

def onKeyDown(key):
	if key == ' ':
		F[2]=1

viz.callback(viz.KEYDOWN_EVENT,onKeyDown)
i found that the force is accumulated each time the function UpdateThruster happens
so, when i press space once, the ball starts accelerating very fast
please i need to apply a force and change its value anytime i want...how can i do this ??

Last edited by moneim230; 07-03-2010 at 11:45 AM.
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  #2  
Old 07-05-2010, 02:58 PM
Jeff Jeff is offline
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Join Date: Aug 2008
Posts: 2,471
You can zero out any forces already added with the <node3D>.reset method.
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  #3  
Old 07-11-2010, 12:03 AM
moneim230 moneim230 is offline
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Join Date: Oct 2009
Posts: 18
Lightbulb

Quote:
Originally Posted by Jeff View Post
You can zero out any forces already added with the <node3D>.reset method.
thanks Jeff
i have a question here
is there a better way than this (calling a function with 0 timer) to update the value of the force
actually i am working on a vehicle model and i need to get the inertia force applied when i leave the gas pedal
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