Determining if a gameobject is inactive within prefab in files, NOT in a scene

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Typically when running a scene, you'd determine if a gameobject is inactive by using gameobject.activeself.

However, this doesn't seem to work when checking objects that are nested in prefabs within my files (meaning I'm not running the game and the prefab is not within my scene view, just in my files). gameobject.activeself will always return true in this case, even if the active checkbox has been unchecked for that gameobject. Is there some alternative method of checking this that I'm not aware of?

Answer 1

Answer by meat5000 · Jan 30, 2018 at 10:06 AM

Um what? All GameObjects in a prefab are Inactive. Instantiate the prefab and its objects become active but its no longer a prefab; its in the hierarchy.

https://forum.unity.com/threads/no-gameobject-active-in-a-prefab.12298/

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Doghelmer · Jan 30, 2018 at 10:23 AM 0

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$$anonymous$$aybe I didn't explain this well enough--

The problem is this: If I use "gameobject.activeself" to check whether an object nested within a prefab within my files is active or not (by "active" I mean the checkbox at the top-left in the inspector when viewing a gameobject), the value will always return true, regardless of whether or not the checkbox is checked.

I don't care about instantiating the prefab, I'm trying to see the "active" status within my files, when I'm not running the game. The prefab and nested objects are not in my scene view, just in my files.

Also just an aside, this post you linked seems.. incorrect? You CAN set whether or not a child of a prefab is active, and this will carry through when the prefab is instantiated.

meat5000 ♦ Doghelmer · Jan 30, 2018 at 10:33 AM 0

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https://answers.unity.com/questions/1266169/check-if-game-object-is-active-in-hierarchy-from-a.html

meat5000 ♦ Doghelmer · Jan 30, 2018 at 10:44 AM 0

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https://forum.unity.com/threads/game-objects-activeself-true-while-activeinhierarchy-false-but-no-parent.438903/

This one is an interestnig read for you.

Answer 2

I'm not sure if this is what you are looking for. This piece of code enumerates each and every gameobject in a given prefab with the information about whether it is active or not (GameObject.activeSelf). Paste that code somewhere in your script. It will add menu item "Test/Test" to the menu bar in the editor. You have to specify the location of your prefab and put it in the variable "path". In my example I assumed that the prefab1.prefab is in the Assets folder.

 string path = "Assets/prefab1.prefab";

The code works like this: it clears the console. Next, it instantiates the prefab and enumerates gameobjects with their corresponding local active state in the console. Afterwards, it destroys the instantiated object of your prefab.

 [UnityEditor.MenuItem("Test/Test")]
 private static void Test()
 {
     System.Type logEntries = System.Type.GetType("UnityEditor.LogEntries, UnityEditor.dll");
     System.Reflection.MethodInfo clear = logEntries.GetMethod("Clear", System.Reflection.BindingFlags.Static | System.Reflection.BindingFlags.Public);
     clear.Invoke(null, null);
     
     string path = "Assets/prefab1.prefab";
     Object prefab = AssetDatabase.LoadAssetAtPath(path, typeof(GameObject));
     if (prefab==null)
     {
         Debug.Log("There is no prefab at the specified location.");
         return;            
     }
     GameObject g = Instantiate(prefab as GameObject);
     Rec(g.transform);
     GameObject.DestroyImmediate(g);
 }
 
 private static void Rec(Transform t)
 {
     Debug.Log(t.name + ": " + t.gameObject.activeSelf);
     int length = t.childCount;
     for (int i = 0; i < length; i++)
     {
         Rec(t.GetChild(i));
     }
 }

Determining if a gameobject is inactive within prefab in files, NOT in a scene

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