[UPDATE] UIDragObject.OnDrag question

[Kafar]

In the OnDrag event I need to check the drag direction.
Can how check it?
I wrote this code below but when I drag the game object, it always move to the left.
Thanks

1. void OnDrag(Vector2 delta)
2.         {
3.                
4.                 if (transform.localPosition.x > 0)
5.                         rigidBody.AddForce (Vector3.right * 20, ForceMode.Impulse);
6.  
7.                 if (transform.localPosition.x < 0)
8.                         rigidBody.AddForce (Vector3.left * 20, ForceMode.Impulse);
9.  
10.                 if (transform.localPosition.y < 0)
11.                         rigidBody.AddForce (Vector3.down * 20, ForceMode.Impulse);
12.  
13.                 if (transform.localPosition.y > 0)
14.                         rigidBody.AddForce (Vector3.up * 20, ForceMode.Impulse);
15.  
16.  
17.  
18.         }
19.  
20.  

[cmifwdll]

I don't have NGUI but wouldn't you want to be checking the delta arg instead of the transform's position?