How do you get child and grandchild?

Question

I have a GameObject which contains children and grandchildren. I would like to change the layers of the entire Parent folder with another layer. Currently the parent and her children I was able to change layers, I add grand to child and it didn't work, it was the same results as I typed child. I have 6 children who have children themselves.

 newBuilding.gameObject.layer = 0;
 foreach (Transform child in newBuilding.transform) child.gameObject.layer = 0;
 foreach (Transform grandChild in newBuilding.transform) grandChild.gameObject.layer = 0;

Answer 1

Best Answer

Answer by Good-old-Grim · May 16, 2014 at 12:40 PM

Both of those lines do exactly the same thing. Calling the Transform "child" or "grandChild" is completely irrelevant.

You have to foreach through all the children of the child like so:

foreach (Transform child in newBuilding.transform)  
{  
  child.gameObject.layer = 0;  
  foreach (Transform grandChild in child)   
    grandChild.gameObject.layer = 0;  
}

Add comment · Show 1 · Share

d112570 · May 16, 2014 at 01:26 PM 0

Share

Thx, was wondering if there was a way to do the whole folder at once, but this solved my problem.

Answer 2

Answer by MikeNewall · May 16, 2014 at 12:43 PM

You could do something like this. It calls SetLayer recursively on each child until it's visited every one.

 void Start(){
     SetLayer(transform.root, 1);
 }

 public static void SetLayer (Transform trans, int layer){
     //Set the layer Of the parent
     trans.gameObject.layer = layer;

     // Call set layer on any children
     for (int i = 0; i < trans.childCount; i++) {
         SetLayer(trans.GetChild(i), layer);
     }
 }

Add comment · Share

Answer 3

Answer by getyour411 · May 16, 2014 at 01:00 PM

Search: birds and the bees

Add comment · Show 2 · Share

HarshadK · May 16, 2014 at 01:06 PM 0

Share

Nailed it ;-)

d112570 · May 16, 2014 at 01:22 PM 0

Share

Haha, I like it.

How do you get child and grandchild?

3 Replies

Your answer

Welcome to Unity Answers

Follow this Question

Related Questions