Creating GameObjects, parenting, and registering Undo actions

Whether from a menu item, or an Inspector view, there are times when we want to create a new GameObject in the scene from an Editor Extension. In this recipe, we'll create a new GameObject and set its position and color randomly:

How to do it...

To create an object and change its value follow these steps:

1. In the Project panel, create a new folder, Editor.
2. In your new Editor folder create a new C# script-class named ObjectManager.cs, containing the following:

using UnityEditor;
 using UnityEngine;
 
 public class ObjectManager : EditorWindow
 {
     [MenuItem("GameObject/MyObjectManager/Create New Empty Game Object")]
     static void CreateCustomEmptyGameObject...