gameObject tree traversal

Scripting
1

if I have a nested set of game objects, and I have a reference to one of the child objects (say, n levels down the tree) how do I traverse straight up, eventually finding the root?

that’s actually what I want to do, find the topmost gameObject of a tree, but I dont see anything like getTop() (to go straight there) or even getParent() (to iterate upwards

thanks to all

2

This stuff is contained in the Transform component. You’re looking for things like transform.parent and transform.root.

Cheers,
-Jon

3

perfect! thanks

4

I’m trying to accomplish this myself, and am running into problems obtaining a reference to parent GameObjects. In a gameobject’s Awake() code, I have this:

        GameObject go = gameObject;
        int i = 0; // safety
        while (go.transform  i++ < 5)
        {
           Debug.Log(go.transform.parent.gameObject);
            go = go.transform.parent.gameObject;
        }

The return is a null reference exception before it even prints out the log entry.

Any ideas how I can get the parent GameObject for a given gameObject?

Thanks.

5

Just use transform.root.