Unity 5. Not saving scene before new scene opens

Question

Add this code to an Editor Window script, add an object through script then try to create a new scene. Why does unity not ask to save the scene before opening a new one?

 Event e = Event.current;
         switch (e.type)
         {
             case EventType.keyDown:
                 {
                     if (e.keyCode == KeyCode.Escape)
                     {
                         GameObject b = new GameObject();
                         b.transform.position = new Vector3(0,0,0);
                     }
                     e.Use();    
                 }
                 break;
         }

Can't test here, but you probable need to tell Unity your scene has actually changed using EditorUtility.SetDirty(someObject); — Kamalen
Tried it man and it still didn't work. Will be playing with this option though now to see if anything can come from it. Thanks for the idea. — Paul Britton

Carpe Noctem Coding llc Carpe Noctem Coding llc · Accepted Answer · 2016-03-15T15:50:52

I don't know if this helps but regarding the dirty bit in Unity 5

You have to:

using UnityEditor.SceneManagement;

at the top of your code. Then use:

EditorSceneManager.MarkAllScenesDirty(); //or mark individual scenes as dirty

Absolutely necessary if you have custom editor scripts dynamically instantiating game objects. (I had one creating a tile based map. Looked great in the editor. I would save scene and play the game. It was gone...)

I can't take full credit for the find, however and old unity 4 post pointed me in the right direction.

Unity 5. Not saving scene before new scene opens

4 Answers