cashing in Scenes to a public vaiable

While dreamblur tells you how to load a scene based on it's name, he doesn't tell you how to actually 'drag and drop' this scene into the inspector and have the inspector sort out the name. I can imagine there are cases where you're setting up a menu when you don't want to type twenty levelnames, but would much rather drag and drop them in.

To do that you need to write a custom inspector. This below assumes you have one script named LoadLevel, which will load a level based on what you drag and dropped, and a second script (in a folder named Editor!) called LoadLevel_Editor. What you will get is the same you get when, in a normal script, you type var someTransform:Transform, with a field where you can drag and drop the Transform in, but here it's a scene you drop in.

 //script name is LoadLevel_Editor
 @CustomEditor( LoadLevel ) class LoadLevel_Editor extends Editor
 {
     var type : String = "(DefaultAsset)"; //GetDragAndDropTitle returns a name + type, in this case LevelName(DefaultAsset), we want to remove the DefaultAsset part
     var fullName : String;
     override function OnInspectorGUI()
     {
         GUILayout.Label( fullName );
         target.scene = EditorGUILayout.ObjectField( target.scene, Object );
         if( target.scene != null )
         {
             fullName = levelName = ObjectNames.GetDragAndDropTitle( target.scene );
             var charArray = type.ToCharArray();
             target.levelName = levelName.TrimEnd( charArray );
         }
     }
 }

 //script name is LoadLevel
 var levelName : String;
 var scene : Object;
 function LoadLevel()
 {
     Application.LoadLevel( levelName );
 }