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Unity 5.x Game Development Blueprints by John P. Doran

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Level editor – toggling editor, GUI, and selecting additional tiles

Now that we have the basic functionality in, it wouldn't be that enjoyable if all we could do was added and remove walls. We also want to be able to spawn collectibles and change the player's starting location. Let's work on that next:

  1. Back in MonoDevelop in the LevelEditor class, we're going to want to first add in an OnGUI function to display the types of things we can create:
    void OnGUI()
    {
      GUILayout.BeginArea(new Rect(Screen.width - 110, 20, 100, 800));
      foreach(Transform item in tiles)
      {
        if (GUILayout.Button (item.name))
        {
          toCreate = item;
          
        }
      }
      GUILayout.EndArea();
    }
  2. The OnGUI function is called for rendering and handling GUI events using IMGUI which is a code-driven GUI system. ...

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