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Question by RoKo · Oct 16, 2012 at 09:25 PM · referencingcalling

loop through scripts attached to objects in an array?

Hey everyone. I'm very new to all of this, so please forgive me for what is probably a very noobish question.

I'm spawning a prefab that includes children objects. These children objects (tagged "subUnit" have a script on them that returns a boolean value based on if they have collided with anything. I am trying to create an array of these (identical) scripts so that I can run through them and see if any of these objects have collided.

I am still learning how to reference other objects and their components so I know I am doing something wrong with the way I'm trying to access this stuff. Currently I get the error "'GetComponent' is not a member of 'UnityEngine.GameObject[]'". I would appreciate any help!

 #pragma strict
 
 var activePce : GameObject[];
 var isQuitting : boolean = false;
 
 // spawn initial active piece
 
 function Start ()
 {
     var clone : GameObject;
     
     clone = Instantiate(activePce[(Random.Range(0, activePce.Length-1))], transform.position, transform.rotation);
     clone.name = "Active"
 }
 
 //find the activeUnits and check each for collision
 
 function Update ()
 {
     var dest : boolean = false;
     var unitList : GameObject[];
     var collisionList : Component[];
     
     unitList = GameObject.FindGameObjectsWithTag("subUnit");
     collisionList = unitList.GetComponent(collisionScript);
     
     for (var coll : collisionScript in collisionList)
     {
         if (coll.hit)
         {
             dest = true;
         }
     }
 }
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Answer by ThePunisher · Oct 16, 2012 at 10:11 PM

You could try this instead:

 function Update()
     {
         var dest : boolean = false;
         var unitList : GameObject[];
         var collisionList : Component[];
 
         unitList = GameObject.FindGameObjectsWithTag("subUnit");
 
         for (var obj : GameObject in unitList)
         {
            var cs:collisionScript = obj.GetComponent(collisionScript);
            
            if(cs)
            {
                if (cs.hit)
                {
                     dest = true;
                }
            }
         }
     }

What I've done here is I've iterated through the list of GameObjects we received from the GameObject.FindGameObjectsWithTag("subUnit"). Then, I accessed the component "collisionScript" of each individual object.

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avatar image RoKo · Oct 17, 2012 at 03:21 AM 0
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This did the trick. Thanks so much!

avatar image ThePunisher · Oct 17, 2012 at 03:59 PM 0
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No problem!

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