How do I keep references to instantiates prefabs?

Question

I am storing the instances as Objects in a Generic List. I would like to call some functions of the prefabs from the object that keeps the List. Is that possible?

Answer 1

Best Answer

Answer by TonyLi · Apr 01, 2013 at 02:36 PM

Sure. Instantiated objects basically get everything that the prefab has. Let's say you have a list like this: (in C#, but similar for JS)

 List<Object> instances = new List<Object>();
 instances.Add(Instantiate(prefab);
 ...

If they're GameObjects and you want to call a GameObject method or access a property, you can cast it as a GameObject:

 foreach (Object o in instances) {
     GameObject go = o as GameObject;
     if (go != null) {
         Debug.Log("My name is " + go.name);
     }
 }

If you want to call a method on a component (MonoBehaviour), you can use GetComponent:

 // Make everyone jump:
 foreach (Object o in instances) {
     GameObject go = o as GameObject;
     if (go != null) {
         JumpController j = go.GetComponent<JumpController>();
         if (j != null) {
             j.Jump();
         }
     }
 }

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Answer 2

Answer by maxmare · Apr 02, 2013 at 11:42 AM

Thanks for the help. I managed to get it going using this:

 List<GameObject> EnemyArmy = new List<GameObject>();   
 
 void Start() 
 {
     Transform t = (Transform)(Instantiate(enemyPrefab, new Vector3(-8.0f, -2.0f, 7.8f), Quaternion.identity) );
     GameObject go = t.gameObject;
     EnemyArmy.Add(go); 
 }
 void Update ()
 {
     foreach (Object o in EnemyArmy) {
         GameObject go = o as GameObject;
         if (go != null) {
             enemyBehaviorScript j = go.GetComponent<enemyBehaviorScript>();
             if (j != null) {
                 int g = 6;
                 j.RunCommand(g);
             }
         }
     }
 }

Again Thanks TonyLi.

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How do I keep references to instantiates prefabs?

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