Adding ChildObject

Questions & Answers
1

Hi guys
I’ve got a problem. I’ve got some Items that i can add to the scene with a script that works well. But I want all the items with the Tag “Item” to be a childObject of a gameobject in the scene. This code is on the gameObject which has to be on the…“FatherObject” of the Items. My code so far:

var Items:GameObject [] ;

function Update () {
Items = GameObject.FindGameObjectsWithTag("Item");

//if i add them until now they will be added... everything works fine

Items = gameObject.AddComponent("GameObject");

// But now it says Cannot convert 'UnityEngine.Component' to 'UnityEngine.GameObject[]'.

}
2

You just should use:

for (var item in Items) {
    item.transform.parent = transform;
    }
3

AddComponent is used to add Rigidbody, Collider, scripts etc. to an object; to child some object to another, set its transform.parent property to the parent’s transform:

  ...
  var items = GameObject.FindGameObjectsWithTag("Item");
  for (var obj in items){
    obj.transform.parent = transform;
  }

This will make the object owner of this script the parent of all Item tagged objects.

But don’t do it at Update, or your game will crawl like a wounded snail! Place this code at Start, or in a function that you call only when desperately needed.

EDITED: But the best way to child a instantiated object to something is right after the creation:

var prefab: GameObject;
var daddy: Transform; // drag here the parent object
...
  // when instantiating the object:
  var obj: GameObject = Instantiate(prefab, ...);
  obj.transform.parent = daddy; // or transform, if this object is the parent