Updating motor_speed

[jason]

I have created a car object that has wheels connected with a wheel joint.

Is there a way to change the motor_speed of the joint with a button press after it is created?

 

[CyberTwister]

Yes there is

 

[Rusty]

keyboard_check_pressed command will check if the keyboard has been pressed.

if keyboard_check_pressed(vk_up)
{ motor_speed+=1;}

It's really basic GML.

Edit:
Haha, no I need to go to sleep. For some reason my brain just didn't register that this was a physics related question. Yeah, sorry about that.

I believe you can update the motor speed using "phy_joint_motor_speed" but I'm not entirely sure how that works as I've never really indulged myself into Game Maker's physics engine.

 

[iMilchshake]

Haha, no I need to go to sleep. For some reason my brain just didn't register that this was a physics related question. Yeah, sorry about that.

Hahaha xD Good Nap mate

 

[jason]

Well, I ended up using physics_apply_torque to the wheel object. So the wheel spins, but the wheel joint falls apart. So I'm not sure what I'm doing wrong there.