Editing prefab using an editor

Hello,
I am trying to create an editor to edit my prefabs, I made it so that the editor can get all the variable I want, but when you edit them in the editor I made it won't apply, it just reset to the original value.
I would like to do something like setdirty(prefab) but it doesn't work. I have no clue what to use to apply my changes.

Code (CSharp):

1. public Tower_Class prefab;
2.    
3.         public Sprite TowerIcone {
4. get {
5.  if (prefab != null)
6. {
7.  return prefab.Icone;
8.  }
9.  else
10.  return null;
11. }
12. set
13. {
14.  if (prefab != null)
15.  {
16.  prefab.Icone = TowerIcone;  EditorUtility.SetDirty(prefab);
17.  }
18.  }
19.  }
20.  

I don't know what I can use.
Thanks

 

Have a look at PrefabUtility.ApplyPrefabInstance and see if that helps. Also, check out the post in this forum on using code tags. Makes your code easier to read:

Code (CSharp):

1. public Tower_Class prefab;
2.  
3. public Sprite TowerIcone
4. {
5.     get
6.     {
7.         if (prefab != null)
8.         {
9.             return prefab.Icone;
10.         }
11.         else
12.             return null;
13.     }
14.  
15.     set
16.     {
17.         if (prefab != null)
18.         {
19.             prefab.Icone = TowerIcone;
20.  
21.             EditorUtility.SetDirty(prefab);
22.         }
23.     }
24. }

 

Hey,
thanks for the quick answer , I will update my post to make it more readable.
I tryed PrefabUtility.ApplyPrefabInstance but I get this error :/
"Calling apply or revert methods on an instance which is part of a Prefab asset is not supported."

 

I made it work thanks you guided me to the right direction , and some help from this : https://forum.unity.com/threads/how-to-create-a-prefab-and-set-the-materials-from-script.643732/
my solution :

Code (CSharp):

1.         public Sprite TowerIcone {
2.             get {
3.                 if (prefab != null)
4.                 {
5.                     return prefab.Icone; }
6.                 else
7.                     return null; }
8.             set {
9.                 if (prefab != null)
10.                 {
11.                     Tower_Class prefabInstance = (Tower_Class)PrefabUtility.InstantiatePrefab(prefab);
12.                     prefabInstance.Icone = value;
13.                     PrefabUtility.ApplyPrefabInstance(prefabInstance.gameObject, InteractionMode.UserAction);
14.                     AssetDatabase.SaveAssets();
15.                     DestroyImmediate(prefabInstance.gameObject);
16.                 }
17.             }
18.         }

 

Well done!