it says an intance of type "unityEngine.rigidbody" is requrid to access non static member addrelativetorque. what does this mean??\

[habfans7]

#pragma strict

var rotationSpeed = 100;

function Update ()  
{
     var rotation : float = Input.GetAxis ("Horizontal") * rotationSpeed;
     rotation *= Time.deltaTime;
     Rigidbody.AddRelativeTorque (Vector3.back * rotation) ;

[Eric5h5]

It means that you’re trying to refer to the class itself, when you need to refer to an instance of the class, in this case by using GetComponent.

GetComponent(Rigidbody).AddRelativeTorque (Vector3.back * rotation);

[Leviatha]

Hi @habfans7,
You’re missing the rigidbody declaration in Awake() or Start(), I’ll show you the right code in C#:

public class MyClass : MonoBehaviour
{
    private Rigidbody _rb;

    void Awake()
    {
        _rb = GetComponent<Rigidbody>();
    }
    void Update()
    {
        _rb.AddRelativeTorque(Vector3.back * rotation);
    }
}

Hope this will help.

[aditya007]

You’re trying to access a non-static function AddRelativeTorque with the Class name, which is wrong. To access non-static members of a class you first need an instance (Object) of it. Therefore, the correct code would be :

 #pragma strict
 
 var rotationSpeed = 100;
 var rotation ;
var rb : Rigidbody;

function Awake(){
rb = GetComponent(Rigidbody);
}

 function Update ()  
 {
      rotation  = Input.GetAxis ("Horizontal") * rotationSpeed * Time.deltaTime;
      rb.AddRelativeTorque (Vector3.back * rotation) ;
}

@habfans7 i don’t know much JS, so the variable declaration could be wrong.
Accept this answer if it solves the problem.