How to detach a rigidbody on particular touch

I have an issue in detaching single rigidbody(small ball),when i touch on one blue sprite,ball attached to the sprite should be detached but when i hit on any one sprite both the balls are detaching.please help me out.Thanks in advance

Code (JavaScript):

1. var ball : Rigidbody;
2. var Position:Transform;
3.  
4. function Update () {
5.         for (var i = 0; i < Input.touchCount; i++)
6.         {
7.            if (Input.GetTouch(i).phase == TouchPhase.Began)
8.             //if (Input.GetButtonDown("Fire1"))
9.             {  
10.                 // var touchPos : Vector3 = Input.GetTouch(i).position;
11.  
12.                  var ray = Camera.main.ScreenPointToRay (Input.GetTouch(i).position);
13.                  var hit : RaycastHit;
14.  
15.                     if (Physics.Raycast (ray, hit)){
16.                             move();
17.                            
18.                             //Destroy(hit.rigidbody);
19.                         }
20.             }
21.         }
22.     }
23. function move(){
24.      //var clone:Rigidbody;
25.      //clone=Instantiate(ball, transform.position,Quaternion.identity);
26.      ball.useGravity=false;
27.      ball.AddForce(transform.TransformDirection(0.0f,10.0f,0.0f)*-20);
28.      ball.transform.parent=null;
29.      //Destroy(ball.gameObject,5);
30.      Debug.Log("button");
31. }

 

you're not checking what the RaycastHit actually hit... do you want the user to tap on each specific ball or just anywhere on the screen?

 

I need user to tap on blue sprite so that ball attached to it should detach from it

 

"the blue sprite"... try to remember we can't see your project so that isn't the most helpful description... is the "other ball" on a different colour sprite?

the above script is attached to the (assume there are several) sprite gameobjects?

 

when i hit on blue sprite small ball should detach from the blue sprite

 

ah ok, so the blue sprite is the link between the big ball and the little ball... gotcha

you need to check if the "hit.transform" is the "ball.transform.parent". The blue sprite would need to have a collider for the raycast to hit it etc.

 

yea i have inserted box collider to both the blue sprites but when i hit on any one blue sprite both small balls are detaching from it.

 

have you updated the code above to compare the hit.transform with the ball.transform.parent?

 

where to update with ball.transform.parent can you explain me

 

currently you call "Move()" when the touch hits anything

Code (csharp):

1.  
2. if (Physics.Raycast (ray, hit))
3. {
4.     move();
5. }
6.  

but you only want the script to do something if the touch was over a specific thing in your scene, so you need to check for that

Code (csharp):

1.  
2. if (Physics.Raycast (ray, hit))
3. {
4.     if(hit.transform == ball.transform.parent)
5.     {
6.         move();
7.     }
8. }
9.  

 

Thanks a lot its working

 

Finally stuck with one more issue,After detaching a ball a new should come n attach to blue sprite with small delay.

 

that sounds like you just need to instantiate a new ball and parent it etc. after a delay, there is a sample of how to handle the delay on Time.time in the scripting reference: http://docs.unity3d.com/ScriptReference/Time-time.html