How to create mini car driving by wiimote

[superantTTY]

Hello, all !!
Like the example "joystick_driving.py", I can control the mini car driving by joystick.
However, now I want to control the mini car driving by wiimote.
I think that key points may be one import,import vizjoy, and two definition,def joyMove(e) & def updateCar().
And there is a Initialize global variable,joyPOS, do I need to initial something like that for wiimote to create the car driving??

How can I do ??

Thank you very much!!

Best Regards!

[Jeff]

You could modify the updateCar function to use the wiimote buttons to control the car. For example, you could replace:

#Use y position of joystick to compute forward car movement
forwardMovementAmount = viz.elapsed() * MOVE_SPEED * -joyPOS[1]
car.setPosition( [ 0, 0, forwardMovementAmount], viz.REL_LOCAL )

with:

if wiimote.isButtonDown(wii.BUTTON_UP):
	forwardMovementAmount = viz.elapsed() * MOVE_SPEED
	car.setPosition( [ 0, 0, forwardMovementAmount], viz.REL_LOCAL )

[superantTTY]

Originally Posted by Jeff

You could modify the updateCar function to use the wiimote buttons to control the car. For example, you could replace:

#Use y position of joystick to compute forward car movement
forwardMovementAmount = viz.elapsed() * MOVE_SPEED * -joyPOS[1]
car.setPosition( [ 0, 0, forwardMovementAmount], viz.REL_LOCAL )

with:

if wiimote.isButtonDown(wii.BUTTON_UP):
	forwardMovementAmount = viz.elapsed() * MOVE_SPEED
	car.setPosition( [ 0, 0, forwardMovementAmount], viz.REL_LOCAL )

I already try the code that you provide, the car can move, but something is strange...
According to "joystick_driving.py", the car can move smoothly instead of moving step by step. For example, when I press the joystick's up button or left button, it can always move forward or turn left until I release the button.
However, now I try the code you provide, it can move, but its movement is step by step. For example, when I press the wiimote's up button or left button, it can just move a small step and then stop. If I keep pressing the button, it becomes not to move!
I would like to use wiimote to make the same preference.
How can I modify it ??

Thanks for your help
Kevin

[Jeff]

Can you post the script you are using?

[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

[superantTTY]

Notice: vizact.onsensordown(........................,updat eCar'''the letters can be separate''')

It's updateCar.

[Darkmax]

use code tags please try this update car:

#Update position of car every frame
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):
		backwardMovementAmount = viz.elapsed() * MOVE_SPEED
		car.setPosition( [ 0, 0, -backwardMovementAmount], viz.REL_LOCAL )
	
	if wiimote.isButtonDown(wii.BUTTON_RIGHT):
		rotationAmount = viz.elapsed() * TURN_SPEED
		car.setEuler( [ rotationAmount, 0 , 0 ] , viz.REL_LOCAL )
	
	if wiimote.isButtonDown(wii.BUTTON_LEFT):
		rotationAmount = viz.elapsed() * TURN_SPEED
		car.setEuler( [ -rotationAmount, 0 , 0 ] , viz.REL_LOCAL )

vizact.ontimer(0,updateCar)

And i think your car jump at first because the physics, maybe because they are colliding

[superantTTY]

Thank you Darkmax ! It can run smoothly !!
^^y