simple ball rolling mechanic

Questions & Answers
1

okay so i need help on how to get the ball to roll when i press AD, so i fiddled around with the script for a while and the closest i got was getting no errors and finding the ball only rolled to the right unprompted.

here is the script:
#pragma strict

var RotationSpeed = 100;

function Update () 

{
 var rotation : float = Input.GetAxis ("Horizontal") * rotation;
 Rotation *= Time.deltaTime;
 UnityEngine.Rigidbody; 
 AddRelativeTorque (Vector3.back * rotation);
}

and at the moment im getting these errors:
Assets/BallControll.js(11,2): BCE0005: Unknown identifier: ‘AddRelativeTorque’.

Assets/BallControll.js(10,14): BCE0034: Expressions in statements must only be executed for their side-effects.

Assets/BallControll.js(9,2): BCE0005: Unknown identifier: ‘Rotation’.

Assets/BallControll.js(8,56): BCE0005: Unknown identifier: ‘rotation’.

and here is a screen shot just to give you an idea as to how this game might work
[31224-screenshot+2014-08-20+12.07.24.png|31224]

2

well:

#pragma strict

var RotationSpeed = 100;
 
function Update () 
{
 var rotation : float = Input.GetAxis ("Horizontal") * rotation;
 Rotation *= Time.deltaTime;
 UnityEngine.Rigidbody; 
 AddRelativeTorque (Vector3.back * rotation);
}

lets see…

     var rotation : float = Input.GetAxis ("Horizontal") * rotation;

You’re declaring a variable called “rotation”, but you’re trying to use that variable which you’re declaring in the same declaration. Did you mean to use RotationSpeed?

Rotation *= Time.deltaTime;

You haven’t declared a variable called Rotation, what did you mean?

UnityEngine.Rigidbody;

This is a type in the UnityEngine namespace, this does nothing. Remove it.

AddRelativeTorque (Vector3.back * rotation);

This is a method on a rigidbody, did you mean:

rigidbody.AddRelativeTorque (Vector3.back * rotation); // This applies to the rigidbody on the gameobject this script is attached to.