4.6 uGUI Hierarchy Z Sort

i got an interface here that depends on z order
i was wondering if and how something like this would be possible with the new uGUI since z order is ignored?
thanks

i guess each window needs to be a world space canvas?

 

If you put this script on the canvas object, it will bubble-sort the elements in the canvas, changing the order of the canvas children. (I'm comparing position.z's here, but you can use any criteria)

Code (CSharp):

1. int k = transform.childCount;
2. Transform childI;
3. Transform childJ;
4.  
5. for( int i = 0; i < k; i++ ){
6.  
7.     for( int j = 0; j < k; j++ ){
8.      
9.         if( i == j )
10.             continue;
11.  
12.         childI = transform.GetChild( i );
13.         childJ = transform.GetChild( j );
14.  
15.         if( childI.position.z > childJ.position.z ){
16.  
17.             int tempIndex = childJ.GetSiblingIndex();
18.  
19.             childJ.SetSiblingIndex( childI.GetSiblingIndex() );
20.             childI.SetSiblingIndex( tempIndex );
21.  
22.         }
23.      
24.     }
25.  
26. }

 

thanks. i recently got it to work like this.

Code (CSharp):

1. using UnityEngine;
2. using System.Linq;
3. public static class GameObjectExtensions
4. {
5.     public static void SortChildren(this GameObject gameObject)
6.     {
7.         var children = gameObject.GetComponentsInChildren<Transform>(true);
8.         var sorted = from child in children
9.                      orderby child.gameObject.activeInHierarchy descending, child.localPosition.z descending
10.                      where child != gameObject.transform
11.                      select child;
12.         for (int i = 0; i < sorted.Count(); i++)
13.         {
14.             sorted.ElementAt(i).SetSiblingIndex(i);
15.         }
16.     }
17. }
18.  

 

i am using a single Screen Space Camera Canvas instead of a bunch of World Canvases as i expected...

the sorting would be easier with world space but then stretching to screen and reference resolution do not work i guess