Unity 添加鼠标右键事件

把此类放到 Editor下使用就OK

 using UnityEngine;
 using System.Collections;
 using System.Collections.Generic;
 using UnityEditor;

 /// <summary>
 /// 添加鼠标右键事件
 /// </summary>
 [InitializeOnLoad]
 [ExecuteInEditMode]
 public static class AddMouseRight
 {

     static AddMouseRight()
     {
         SceneView.onSceneGUIDelegate = OnSceneFunc;
     }

     private class Item
     {
         public string MenuName { get; set; }
         public GenericMenu.MenuFunction2 Call { get; set; }
     }
     static List<Item> S_MenuList = new List<Item>();
     public static void AddMenu(string menuName, GenericMenu.MenuFunction2 call)
     {
         Item item = new Item();
         item.MenuName = menuName;
         item.Call = call;
         S_MenuList.Add(item);
     }

     static void OnSceneFunc(SceneView sceneView)
     {
         if (S_MenuList.Count == )
         {
             return;
         }

         if (Event.current.isMouse && Event.current.button == )
         {
             Vector3 p = Event.current.mousePosition;

             GenericMenu menu = new GenericMenu();

             foreach(Item i in S_MenuList)
             {
                 menu.AddItem(new GUIContent(i.MenuName), false, i.Call, p);
             }
             menu.ShowAsContext();

             Event.current.Use();
         }
     }

     public static void Reset()
     {
         while(S_MenuList.Count > )
         {
             S_MenuList.RemoveAt();
         }
     }

 }