Finding ALL Children of object

Hello guys. I'm trying to find all children in an object that contain a certain tag. Something similar to "GetComponentsInChildren<>()". But for tags instead of scripts. Everywhere I look basically gives me the following code. But it only finds immediate child objects, it does not go down the very last child (only 1 level down).

Code (csharp):

1.  
2. using UnityEngine;
3. using System.Collections;
4. using System.Collections.Generic;
5.  
6. public class scr_fj_target_controller : MonoBehaviour
7. {
8.     public List<GameObject> tag_targets = new List<GameObject>();
9.  
10.     void Start ()
11.     {
12.         foreach (Transform child in transform)
13.         {
14.             if (child.gameObject.tag == "Targets")
15.             {
16.                 tag_targets.Add(child.gameObject);
17.             }
18.         }
19.     }
20. }
21.  

What can I use to find every child with a certain tag of an object?

Thank you very much for your help guys. I really appreciate it-

-Shade-[/CODE]

 

There's no pre-written function, but recursion can easily get you want you need. Just make a function that searches and adds a single level of children for a given parent, and then recursively call that function on each of the children as a parent of even deeper children in the hierarchy.

Code (CSharp):

1.     private void AddDescendantsWithTag(Transform parent, string tag, List<GameObject> list)
2.     {
3.         foreach (Transform child in parent)
4.         {
5.             if (child.gameObject.tag == tag)
6.             {
7.                 list.Add(child.gameObject);
8.             }
9.             AddDescendantsWithTag(child, tag, list);
10.         }
11.     }
12.  
13.     void Start()
14.     {
15.         AddDescendantsWithTag(transform, "Targets", tag_targets);
16.     }

 

Wow, you're freaking awesome man. Never would have thought of that.

Much appreciate and thank you so much good Sir!

 

Try using 'CompareTag(tag)' rather than '.tag == tag'.

'.tag' actually generates a lot of garbage as it creates a new string every time you access it.

It's just a quark in the way the mono runtime and the unity runtime interact. .tag has to read the data out of the unity runtime and turn it into a mono string.

https://docs.unity3d.com/ScriptReference/Component.CompareTag.html

 

GetComponentsInChildren<Transform>() is also a useful way to get all of the children to iterate through.

 

Try this. It found all childs, grandchilds, grandgrand, etc

Code (CSharp):

1.  private List<GameObject> AllChilds(GameObject root)
2.     {
3.         List<GameObject> result = new List<GameObject>();
4.         if (root.transform.childCount > 0)
5.         {
6.             foreach (Transform VARIABLE in root.transform)
7.             {
8.                 Searcher(result,VARIABLE.gameObject);
9.             }
10.         }
11.         return result;
12.     }
13.  
14.     private void Searcher(List<GameObject> list,GameObject root)
15.     {
16.         list.Add(root);
17.         if (root.transform.childCount > 0)
18.         {
19.             foreach (Transform VARIABLE in root.transform)
20.             {
21.                 Searcher(list,VARIABLE.gameObject);
22.             }
23.         }
24.     }

 

thk

 

My solution:

Code (CSharp):

1. foreach (Transform child in transform.GetComponentsInChildren<Transform>()) {
2.     // Do what you want
3. }

 

I thought of this, googled, found your answer, tried it - worked! Thank you

 

Rock solid answer! Thanks! I feel like a dummy for not thinking of it haha!