Unity3D编辑器之重写Hierarchy的右键菜单

 using UnityEngine;
 using UnityEditor;
 using System.Collections;

 public class MyHierarchyMenu
 {
     [MenuItem("Window/Test/yusong")]
     static void Test()
     {
     }

     [MenuItem("Window/Test/momo")]
     static void Test1()
     {
     }
     [MenuItem("Window/Test/雨松/MOMO")]
     static void Test2()
     {
     }

     [InitializeOnLoadMethod]
      static void StartInitializeOnLoadMethod()
      {
          EditorApplication.hierarchyWindowItemOnGUI += OnHierarchyGUI;
      }

      static void OnHierarchyGUI(int instanceID, Rect selectionRect)
      {
          if (Event.current != null && selectionRect.Contains(Event.current.mousePosition)
              && Event.current.button ==  && Event.current.type <= EventType.mouseUp)
          {
              GameObject selectedGameObject = EditorUtility.InstanceIDToObject(instanceID) as GameObject;
              //这里可以判断selectedGameObject的条件
              if (selectedGameObject)
              {
                 Vector2 mousePosition = Event.current.mousePosition;

                 EditorUtility.DisplayPopupMenu(new Rect(mousePosition.x, mousePosition.y, , ), "Window/Test",null);
                 Event.current.Use();
              }
          }
      }

 }

原文链接：http://www.xuanyusong.com/archives/3893