Remove Force from Moving Object

Question

I have a rolling ball that the player can move around, which I'm doing using rigidbody.AddForce. I want to include a button (Left Shift, in my current code) that stops the ball completely, but am running into an issue. The ball stops still the moment the button is pressed, but afterward will continue rolling just as it was before. I've tried adjusting the ball's physics material friction and the AddForce Force Mode, neither seem to make any difference.

Can anyone help me to get the ball to halt completely, and not move again until the player's next input?

 function FixedUpdate ()
 {
     if(Input.GetKeyDown(KeyCode.LeftShift))
         rigidbody.velocity = Vector3.zero; 
     
     if(Input.GetKey("up"))
         rigidbody.AddForce(0,0,speed); 
         
     if(Input.GetKey("down"))
         rigidbody.AddForce(0,0,-speed); 
     
     if(Input.GetKey("right"))
         rigidbody.AddForce(speed,0,0);
         
     if(Input.GetKey("left"))
         rigidbody.AddForce(-speed,0,0);
 }

Answer 1

Best Answer

Answer by robertbu · Sep 26, 2013 at 01:21 AM

You also need to set the angularVelocity to zero:

 if(Input.GetKeyDown(KeyCode.LeftShift)) {
    rigidbody.velocity = Vector3.zero;
    rigidbody.angularVelocity = Vector3.zero; 
    }

Add comment · Show 7 · Share

csgeorge · Sep 26, 2013 at 05:31 AM 0

Share

Worked like a charm, thanks!

WSllc · May 28, 2014 at 12:19 AM 0

Share

I also had this problem and overlooked the angular velocity. Thanks robertbu! You've helped me too!

tapticc · Jun 16, 2014 at 06:59 PM 0

Share

Sorted my random sliding of my car as well, cheers!

zark · Feb 01, 2015 at 12:55 AM 0

Share

rigidbody.angularVelocity = Vector3.zero; > this does not work though i used rigidbody.angularVelocity = 0f;

Zoelovezle zark · Dec 21, 2015 at 10:10 AM 0

Share

It might be because of update. Since csgeorge said it worked :)

VaskeDaGame · Jun 05, 2018 at 09:54 AM 0

Share

can you help me as well? i want my player to stop the forces when he moves right or left. but if hes in the air that makes him float. i want to only stop his velocity on X axis. so that it stays the same on the Y. i tried putting RigidBody.Velocyty.x but it gives me an error. is there a way?

Show more comments

Remove Force from Moving Object

1 Reply

Welcome to Unity Answers

Follow this Question

Related Questions