Unity: Prefab parenting in code

Question

Let's say I want multiple prefab object called childTile, it parenting another single prefab object called parentTile. So whenever the parentTile rotates, childTiles will be rotated around parentTile.

Basically this is what I wrote:

public GameObject childPrefab;
public GameObject parentPrefab;

void Update()
{
   for(int i = 0; i < 10; i++)
   {
      GameObject clone = Instantiate(childPrefab, /*PsuedoCode: random position*/ , Quaternion.identity)

      clone.transform.parent = parentPrefab;

   }
}

The expected result is during runtime, if I rotate parentPrefab at the scene, the 10 childPrefabs should also rotate. I've tried many ways but failed, unless I manually drag childPrefabs to parentPrefab on the Hierachy bar.

score 2 · Accepted Answer · answered Jun 20 '15 at 11:55

Are you sure you want to Instantiate 10 child prefabs on each frame (Update is called once per frame).

I think you problem is, that you did not Instantiate the parent prefab.

If I take your code, and fix it, it works like a charm for me.

public GameObject childPrefab;
public GameObject parentPrefab;

void Start() 
{
    GameObject parent = Instantiate(parentPrefab) as GameObject;

    for(int i = 0; i < 10; i++)
    {
        GameObject child = Instantiate(childPrefab) as GameObject;
        child.transform.parent = parent.transform;
    }
}

This is the result of above code, and I suspect, that's what you want?

enter image description here

Thank a lot!! I did not instantiate the parent object. How stupid of me, it took me 4 hours on this problem. — Sylphv, Jun 20 '15 at 14:19

Unity: Prefab parenting in code

1 Answers1