Camera orbit around target on touch device

Hi everyone,

I am trying to have a camera rotating around a target when I drag my finger on the phone. I just grabbed a code I found so I don't really understand it, so it's pretty hard to review it ( as you might understand I am just a hobbyist coder).

When I try, the camera seems to jsut rotate around its own position when I want it to rotate around the var target.

Sorry for your expert eyes, here is the code:

var target : Transform; var distance = 20.0; var wheelSpeed = 10.0;

var xSpeed = 250.0; var ySpeed = 120.0;

var yMinLimit = -20; var yMaxLimit = 80;

var minDistance = 5.0;

var touch : Touch; var curDist = 0.0; var lastDist = 0.0; var pinchSpeed : float ; var cameraSpeed =1.0;

private var x = 0.0; private var y = 0.0;

@script AddComponentMenu("Camera-Control/Mouse Orbit")

function Start () {

 var angles= transform.eulerAngles;
 

 x = angles.y;

 y = angles.x;

 

 if (rigidbody)

 rigidbody.freezeRotation = true;
 

}

function LateUpdate () {

if (target && camera) {

 if (Input.touchCount == 1 && Input.GetTouch(0).phase == TouchPhase.Moved) 

 {

     touch = Input.GetTouch(0);

     x += touch.deltaPosition.x * xSpeed * 0.02f;

     y -= touch.deltaPosition.y * ySpeed * 0.02f;

 }
 
 

 if (Input.touchCount > 1 && (Input.GetTouch(0).phase == TouchPhase.Moved || Input.GetTouch(1).phase == TouchPhase.Moved)) 

 {

     var touch1 = Input.GetTouch(0);

     var touch2 = Input.GetTouch(1);

     curDist = Vector2.Distance(touch1.position, touch2.position);
 

     if(curDist > lastDist)

     {

     distance += Vector2.Distance(touch1.deltaPosition, touch2.deltaPosition)*pinchSpeed/10;

     }
     

     else

     {

     distance -= Vector2.Distance(touch1.deltaPosition, touch2.deltaPosition)*pinchSpeed/10;

     }

     lastDist = curDist;

 }
 

 y = ClampAngle(y, yMinLimit, yMaxLimit);

 var rotation= Quaternion.Euler(y, x, 0);

 var vTemp = new Vector3(0.0f, 0.0f, -distance);

 var position= rotation * vTemp + target.position;

 transform.position = Vector3.Lerp (transform.position, position, cameraSpeed*Time.deltaTime);

 transform.rotation = rotation;      
 

}

}

static function ClampAngle (angle : float, min : float, max : float) { if (angle < -360) angle += 360; if (angle > 360) angle -= 360; return Mathf.Clamp (angle, min, max); }

Thanks a LOT in advance Cheers