ray destroying prefab not clone?

Questions & Answers
1

i have a game were bubbles fall to the ground i have a raycast script on the bubbles them self but when i try to destroy them it destroys the prefab instead of the clone that are made, if you could help i would really appreciate it very much.

CODE

function start()
{
if (bubbleEasy == true){
 
    Health = 1;
}
else if (bubbleMed == true){
 
    Health = 2;
}     
else if (bubbleHard == true){
 
    Health = 3;
}
}
 
function Update(){
 
 for (var touch : Touch in Input.touches) 
		{
		
		if (touch.phase == TouchPhase.Began) 
		{
				
				// Construct a ray from the current touch coordinates
				var ray = Camera.main.ScreenPointToRay(touch.position);
				
				var hit : RaycastHit;
				
			
				if (Physics.Raycast (ray, hit, 400))
				
				{
				Health -= 1;
				
				Debug.DrawLine(ray.origin, hit.point);
				}
			}
		}
				
 
if (Health == 0){
 
   PopBubble();   
}
}
 
 
 
function OnMouseDown()
{
    //Health -= 1;
 
    //Destroy (gameObject);
}
 
 
function OnDestroy (){
 
tapCount += 1;
 
}
 
function PopBubble(){
 
Destroy (gameObject);
 
 
 
 
}
2

You’re doing the raycast in all bubbles, and whenever something is hit by the ray all bubbles decrement their Health variables. You could instead use collider.Raycast - this function ignores all other colliders, thus only the bubble hit will be affected:

      ...
      var ray = Camera.main.ScreenPointToRay(touch.position);
      var hit : RaycastHit; 
      if (collider.Raycast (ray, hit, 400))
      {
          Health -= 1;
          Debug.DrawLine(ray.origin, hit.point);
      }
      ...

But it would be way more efficient to do a single raycast in a script attached to the camera and call a function in the bubble script hit that would decrement its Health. The camera script could be like this:

function Update(){
    for (var touch : Touch in Input.touches) 
    {
        if (touch.phase == TouchPhase.Began) 
        {
            // Construct a ray from the current touch coordinates
            var ray = camera.ScreenPointToRay(touch.position);
            var hit : RaycastHit;
            if (Physics.Raycast (ray, hit, 400))
            {
                // call function DecHealth(1) in the bubble script:
                hit.transform.SendMessage("DecHealth", 1, SendMessageOptions.DontRequireReceiver);
            }
        }
    }
}

The bubble script would be much simpler:

function Start() // It's Start, not start!
{
    if (bubbleEasy == true){ 
        Health = 1;
    }
    else if (bubbleMed == true){
        Health = 2;
    }     
    else if (bubbleHard == true){
        Health = 3;
    }
}
 
function DecHealth(howMany: int)
{
    Health -= 1;
    if (Health <= 0){ 
        Destroy(gameObject);
    }
}

function OnDestroy (){
    tapCount += 1;
}

NOTE: Start was written in lowercase in your code - it must start with a capital S, otherwise Unity won’t call it.

3

any idea how to limit to just 2 fingers?