How to create mini car driving by wiimote

[superantTTY]

Of course! This is my script.

################################################## #########
MOVE_SPEED = 10
TURN_SPEED = 90

import viz

viz.go()

import vizinfo
vizinfo.add('This is a car driving test by wiimote')

viz.phys.enable()

ground = viz.add('tut_ground.wrl')
ground.collidePlane()

car = viz.add('mini.osgx')
car.setPosition(0,0,-10)
car.setScale(1,1,1)
car.setEuler(0,0,0)
car.collideBox()

wii = viz.add('wiimote.dle')
wiimote = wii.addWiimote()

wiimote.led = wii.LED_1

def updateCar():

if wiimote.isButtonDown(wii.BUTTON_UP):
forwardMovementAmount = viz.elapsed() * MOVE_SPEED
car.setPosition( [ 0, 0, forwardMovementAmount], viz.REL_LOCAL )
if wiimote.isButtonDown(wii.BUTTON_DOWN):
forwardMovementAmount = viz.elapsed() * MOVE_SPEED
car.setPosition( [ 0, 0, -forwardMovementAmount], viz.REL_LOCAL )
if wiimote.isButtonDown(wii.BUTTON_LEFT):
rotationAmount = viz.elapsed() * TURN_SPEED
car.setEuler( [ -rotationAmount, 0 , 0 ] , viz.REL_LOCAL )
if wiimote.isButtonDown(wii.BUTTON_RIGHT):
rotationAmount = viz.elapsed() * TURN_SPEED
car.setEuler( [ rotationAmount, 0 , 0 ] , viz.REL_LOCAL )

vizact.onsensordown(wiimote,wii.BUTTON_UP,updateCa r)

vizact.onsensordown(wiimote,wii.BUTTON_DOWN,update Car)

vizact.onsensordown(wiimote,wii.BUTTON_LEFT,update Car)

vizact.onsensordown(wiimote,wii.BUTTON_RIGHT,updat eCar)


viz.MainView.move(0,0,-15)

################################################## #########

And I also have a question.
Why my car can jump in the beginning? I'd like it to be static in the beginning.

How can I do ?

Thanks for your help, Jeff !!

Kevin