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/*

 * http://www.manew.com/thread-102160-1-1.html 游戏蛮牛  */  #if UNITY_EDITOR using UnityEngine; using UnityEditor; using System;

[InitializeOnLoad] //Unity启动的时候执行编辑器的脚本 需要静态的构造函数

static class DrawIcon

{     static Texture2D icon;     //静态的构造函数     static DrawIcon()     {         callback();     }

    private static void callback()

    {         icon =  AssetDatabase.LoadAssetAtPath<Texture2D>(@"Assets/AssetFolder/GUIAsset/Textures/ChatFace/015.png");

        EditorApplication.hierarchyWindowItemOnGUI = (EditorApplication.HierarchyWindowItemCallback)Delegate.Combine(EditorApplication.hierarchyWindowItemOnGUI,              new EditorApplication.HierarchyWindowItemCallback(HierarchyWindowItemOnGUI));         /*EditorApplication.hierarchyWindowItemOnGUI这对象用的是         * EditorApplication.HierarchyWindowItemCallback委托的结构         */         //添加委托         EditorApplication.hierarchyWindowItemOnGUI += HierarchyIcon;     }     private static void HierarchyIcon(int instanceID, Rect selectionRect)     {         Rect r = new Rect(selectionRect);                r.x = 5.0f;                 //调整大小的         r.width = 20;         //EditorUtility.InstanceIDToObject是通过一个id来变换成一个GameObj         GameObject go = EditorUtility.InstanceIDToObject(instanceID) as GameObject;         //  && 后面就是选择那一个物体前面有图标的   我的是挂了IconMark脚本的都会绘制上图标         if (go != null && go.GetComponent<IConMark>() != null)         {             GUI.Label(r, icon);         }         else if(go != null && go.GetComponent<UIWindowBehaviour>() != null)         {             GUI.Label(r, "wnd");         }             }     private static void HierarchyWindowItemOnGUI(int instanceID, Rect selectionRect)     {         GameObject gameObject = EditorUtility.InstanceIDToObject(instanceID) as GameObject;         if (gameObject != null)         {             var trans = gameObject.GetComponentsInChildren<Transform>(true);

            Rect position = new Rect(selectionRect);

            position.x = position.width + (selectionRect.x - 40);             position.width = 40;             position.height = 16f;             GUI.Label(position, trans.Length.ToString());         }     } } #endif

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