Rotating an object according to the force.

Questions & Answers
1

I am working on a project now which is about moving a paperboat forth and back. I have applied force to the object which will let the object move just by clicking on a plane. I want the object to spin according to the force too. The object is not rotating at all. Please help me in fixing this problem. My code is...

var strength : float = 10.0f;

var amount: float = 0.0f;

var smooth = 2.0;

var tiltAngle = 30.0;

function Update () 

{
    if(Input.GetKeyDown(KeyCode.Mouse0))

    {

        var ray = Camera.main.ScreenPointToRay(Input.mousePosition);

        var hit : RaycastHit;

        if (Physics.Raycast(ray, hit)) 

        {
            var delta = transform.position - hit.point ;

            rigidbody.AddForce(delta.normalized * strength, ForceMode.Impulse);
            rigidbody.AddTorque (0, 10, 0);
        }
    }
}

Please respond to this question as soon as possible. Thank you...

2

Forces using the physics engine need to be added inside FixedUpdate() instead of Update() Try that and see if it works.

Here's a link to a post about how to use slerp to look at a target point.

Here's a link to an answer on this forum that deals with limiting slerp rotation to one axis. See if this helps.

http://answers.unity3d.com/questions/36315/rotate-on-one-axis