Community

Question

When I try to run my script I get this error:

NullReferenceException Movementscript.FixedUpdate () (at Assets/Movementscript.js:7)

Here is my script:

   var speed=20.0;
    function FixedUpdate () {

    var torque=Vector3(Input.GetAxisRaw("Vertical"), 0, -Input.GetAxisRaw("Horizontal"));
    if(torque.magnitude > 0.0){
       torque=Camera.main.transform.TransformDirection(torque);
       rigidbody.angularVelocity=Vector3.Lerp(rigidbody.angularVelocity, torque * 2, 0.3);
    }

if (Input.GetButton("W"))
{

rigidbody.AddRelativeTorque (2, 0, 0);

rigidbody.AddRelativeForce (2, 0, 0);
}


if (Input.GetButton("S"))
{

rigidbody.AddRelativeTorque (-2, 0, 0);
rigidbody.AddRelativeForce (-2, 0, 0);
}

if (Input.GetButton("A"))
{
rigidbody.AddRelativeTorque (0, 0, -2);
rigidbody.AddRelativeForce (0, 0, -2);
}


if (Input.GetButton("D"))
{
rigidbody.AddRelativeTorque (0, 0, 2);
rigidbody.AddRelativeForce (0, 0, 2);
}
}

I don't see any problem with the script, so can someone explain to me what's wrong?

Answer 1

0

Don't you need to tell Unity which rigidbody you're referencing? Rigidbody is a component of a Game Object, I believe.

like, Machine1.rigidbody.AddRelativeTorque

answered Jul 08 '11 at 06:47 PM

Sparkplug94
1 ● 1 ● 1 ● 1

(comments are locked)

Answer 2

0

Like Sparkplug94 says, to this script works, its need to be attached to an object that have a rigidbody attached.

Anyway, why are you using Input.GetButton to keys(letters)? That letters are mapped in Edit > Project Settings > Input? If no, the best way to use Keys is Input.GetKey.

answered Jul 08 '11 at 06:58 PM

Borgo
998 ● 9 ● 13 ● 25

(comments are locked)

Answer 3

Borgo is correct. Try this:` var speed=20.0; function FixedUpdate () {

var torque=Vector3(Input.GetAxisRaw("Vertical"), 0, -Input.GetAxisRaw("Horizontal"));
if(torque.magnitude > 0.0){
    torque=Camera.main.transform.TransformDirection(torque);
    rigidbody.angularVelocity=Vector3.Lerp(rigidbody.angularVelocity, torque * 2, 0.3);
}

if (Input.GetKey("w")) {

rigidbody.AddRelativeTorque (2, 0, 0);

rigidbody.AddRelativeForce (2, 0, 0); }

if (Input.GetKey("s")) {

rigidbody.AddRelativeTorque (-2, 0, 0); rigidbody.AddRelativeForce (-2, 0, 0); }

if (Input.GetKey("a")) { rigidbody.AddRelativeTorque (0, 0, -2); rigidbody.AddRelativeForce (0, 0, -2); }

if (Input.GetKey("d")) { rigidbody.AddRelativeTorque (0, 0, 2); rigidbody.AddRelativeForce (0, 0, 2); } }`

Answer 4

0

Try to use Camera.mainCamera Instead Camera.main.

I use Camera.mainCamera on my scripts.

answered Jul 08 '11 at 07:15 PM

Borgo
998 ● 9 ● 13 ● 25

(comments are locked)

Answer 5

0

This question is still unanswered. Can someone please help me out.

answered Jul 08 '11 at 10:50 PM

blackmethod
63 ● 24 ● 28 ● 34

(comments are locked)

Community

NullReferenceException Error

Follow this question

Welcome to Unity Answers

Unity Answers tutorial video!

Related Questions