Unity 编辑器扩展

自定义检视面板的使用：

先是定义一个脚本文件，我们来修饰它的检视面板：

[HelpURL("http://www.baidu.com")]
public class Atr : MonoBehaviour
{
    public int id;
    public string Name;
    [Multiline()]
    public string BackStory;

    public float health;
    public float damage;

    public float weaponDamagel, weaponDamage2;
    public string shoeName;
    public int shoeSize;
    public string shoeType;

    [Space()]
    [Range(-,)]
    public int time;
    void Start ()
    {
        health = ;
    }
}

然后在根目录的Editor文件夹下定义一个用来修饰上面脚本检视面板的类文件：

using UnityEngine;
using System.Collections;
using UnityEditor;

[CustomEditor(typeof(Atr))]
//需要继承自editor，并且引入UnityEditor程序集
public class LearnInspector : Editor
{
    private Atr atr;
    private bool showWeapons;

    void OnEnable()
    {
        //获取当前自定义的Inspector对象
        atr = (Atr) target;
    }

    //执行该函数来自定义检视面板
    public override void OnInspectorGUI()
    {
        //不写默认是垂直布局
        EditorGUILayout.BeginVertical();

        //空格
        EditorGUILayout.Space();
        EditorGUILayout.Space();

        EditorGUILayout.LabelField("Base Info");
        atr.id = EditorGUILayout.IntField("Atr ID", atr.id);
        atr.Name = EditorGUILayout.TextField("Atr Name", atr.Name);

        EditorGUILayout.Space();
        EditorGUILayout.Space();
        EditorGUILayout.Space();

        EditorGUILayout.LabelField("Back Story");
        atr.BackStory = EditorGUILayout.TextArea(atr.BackStory, GUILayout.MinHeight());

        EditorGUILayout.Space();
        EditorGUILayout.Space();
        EditorGUILayout.Space();

        atr.health = EditorGUILayout.Slider("Health", atr.health, , );

        if (atr.health < )
        {
            GUI.color = Color.red;
        }
        else if (atr.health>)
        {
            GUI.color = Color.green;
        }
        else
        {
            GUI.color = Color.grey;
        }

        Rect progressRect = GUILayoutUtility.GetRect(, );

        EditorGUI.ProgressBar(progressRect,atr.health/100.0f,"Health");

        GUI.color = Color.white;

        EditorGUILayout.Space();
        EditorGUILayout.Space();
        EditorGUILayout.Space();

        atr.damage = EditorGUILayout.Slider("Damage", atr.damage, , );

        if(atr.damage<)
        {
            EditorGUILayout.HelpBox("伤害过低",MessageType.Error);
        }
        else if (atr.damage > )
        {
            EditorGUILayout.HelpBox("伤害过高",MessageType.Warning);
        }
        else
        {
            EditorGUILayout.HelpBox("伤害适中",MessageType.Info);
        }

        EditorGUILayout.Space();
        EditorGUILayout.Space();
        EditorGUILayout.Space();

        EditorGUILayout.LabelField("Shoe");
        EditorGUILayout.BeginHorizontal();
        EditorGUILayout.LabelField("Name", GUILayout.MaxWidth());
        atr.shoeName = EditorGUILayout.TextField(atr.shoeName);
        EditorGUILayout.LabelField("Size", GUILayout.MaxWidth());
        atr.shoeSize = EditorGUILayout.IntField(atr.shoeSize); EditorGUILayout.LabelField("Type", GUILayout.MaxWidth());
        atr.shoeType = EditorGUILayout.TextField(atr.shoeType);

        EditorGUILayout.EndHorizontal();

        EditorGUILayout.EndVertical();
    }
}

//绘制字段用到的方法

//EditorGUILayout.LabelField（）标签字段
//EditorGUILayout.IntField（） 整数字段
//EditorGUILayout.FloatField（） 浮点数字段
//EditorGUILayout.TextField（） 文本字段
//EditorGUILayout.Vector2Field（） 二维向量字段
//EditorGUILayout.Vector3Field（） 三维向量字段
//EditorGUILayout.Vector4Field（） 四维向量字段

可以看出该修饰类和效果图对应的关系。我们可以方便的定义检视面板来协助游戏的开发调试，让它直观的显示出帮助消息。

更多的信息可以查看帮助文档：http://www.ceeger.com/Script/Editor/Editor.html

---

自定义窗口：

 using System;
 using UnityEngine;
 using System.Collections;
 using System.IO;
 using UnityEditor;
 using UnityEditor.SceneManagement;

 public class MyFirstWindow : EditorWindow
 {

     public Texture TxTexture;
     string bugReporterName = "";
     string description = "";
     GameObject buggyGameObject;

     MyFirstWindow()
     {
         this.titleContent=new GUIContent("Bug Rt");
     }

     [MenuItem("Tool/Bug Reporter")]
     static void showWindow()
     {
         EditorWindow.GetWindow(typeof (MyFirstWindow));
     }

     //绘制窗口界面
     void OnGUI()
     {
         GUILayout.BeginVertical();

         GUILayout.Space();
         GUI.skin.label.fontSize = ;
         GUI.skin.label.alignment = TextAnchor.MiddleCenter;
         GUILayout.Label("Bug Report");

         GUILayout.Space();
         bugReporterName = EditorGUILayout.TextField("Bug Name", bugReporterName);

         GUILayout.Space();
         GUI.skin.label.fontSize = ;
         GUI.skin.label.alignment = TextAnchor.UpperLeft;
         GUILayout.Label("Currently Scene:"+EditorSceneManager.GetActiveScene().name);

         GUILayout.Space();
         GUILayout.Label("Time:"+System.DateTime.Now);

         GUILayout.Space();
         buggyGameObject =
             (GameObject) EditorGUILayout.ObjectField("Buggy Go", buggyGameObject, typeof (GameObject), true);

         GUILayout.Space();
         GUILayout.BeginHorizontal();
         GUILayout.Label("Description", GUILayout.MaxWidth());
         description = EditorGUILayout.TextArea(description, GUILayout.MaxHeight());
         GUILayout.EndHorizontal();

         EditorGUILayout.Space();

         if (GUILayout.Button("Save Bug"))
         {
             SaveBug();

         }

         if (GUILayout.Button("Save Bug With Screenshoot"))
         {
             SaveBugWithScreeshot();
         }

         EditorGUILayout.EndVertical();//布局开始和结束相对应，缺少时可能出现窗口中的元素无法自适应的情况
     }

     private void SaveBugWithScreeshot()
     {
         Writer();
         Application.CaptureScreenshot("Assets/BugReports/" + bugReporterName + "/" + bugReporterName + ".png");
     }

     private void SaveBug()
     {
         Writer();
     }

     //IO类，用来写入保存信息
     void Writer()
     {
         Directory.CreateDirectory("Assets/BugReports/" + bugReporterName);
         StreamWriter sw = new StreamWriter("Assets/BugReports/" + bugReporterName + "/" + bugReporterName + ".txt");
         sw.WriteLine(bugReporterName);
         sw.WriteLine(DateTime.Now.ToString());
         sw.WriteLine(EditorSceneManager.GetActiveScene().name);
         sw.WriteLine(description);
         sw.Close();
     }
 }

---

自定义菜单项：

 using UnityEditor;
 using UnityEngine;
 using System.Collections;

 /// <summary>
 /// 工具类改名
 /// </summary>
 public class ChangeName : ScriptableWizard
 {

     public string PrefixStr = null;

     /// <summary>
     /// 当没有任何GameObject被选中的时候，将菜单disable（注意，这个函数名可以随意取）
     /// </summary>
     /// <returns></returns>
     [MenuItem("ChangeName/AddPrefixAndEuipment", true)]
     static bool CreateWindowDisabled()
     {
         return Selection.activeTransform;
     }

     /// <summary>
     /// 创建编辑窗口（注意，这个函数名可以随意取）
     /// </summary>
     [MenuItem("ChangeName/AddPrefixAndEuipment")]
     static void CreateWindow()
     {
         //第一个参数窗口标题
         // 定制窗口标题和按钮，其中第二个参数是Create按钮，第三个则属于other按钮
         // 如果不想使用other按钮，则可调用DisplayWizard的两参数版本
         DisplayWizard<ChangeName>(
             "AddPrefix",
             "Add", "Remove");
     }

     /// <summary>
     /// 窗口创建或窗口内容更改时调用
     /// </summary>
     void OnWizardUpdate()
     {
         helpString = "Note: Prefix are not created";

         if (string.IsNullOrEmpty(PrefixStr))
         {
             errorString = "Please enter Prefix";
             isValid = false;
         }
         else
         {
             errorString = "";
             isValid = true;
         }
     }

     /// <summary>
     /// 点击Add按钮（即Create按钮）调用
     /// </summary>
     void OnWizardCreate()
     {

         Transform[] transforms = Selection.GetTransforms(SelectionMode.TopLevel | SelectionMode.OnlyUserModifiable);

         foreach (Transform transform in transforms)
         {
             transform.name = PrefixStr + transform.name;         }

         Debug.Log("AddPrefixAndEuipment " + PrefixStr+"successed!");
     }

     /// <summary>
     /// 点击Remove（即other按钮）调用
     /// </summary>
     void OnWizardOtherButton()
     {
         Transform[] transforms = Selection.GetTransforms(SelectionMode.TopLevel | SelectionMode.OnlyUserModifiable);

         foreach (Transform transform in transforms)
         {
             if (transform.name.Contains(PrefixStr))
             {
                 transform.name=transform.name.Replace(PrefixStr, "");
             }
         }

         Debug.Log("ReMove prefix " + PrefixStr + "successed!");
     }

 　　　　
     [MenuItem("ChangeName/AddOrderNume2Name ")]// 为选择的对象名称添加序列号，让重名的物体相区别
     static void AddOrder2Name()
     {
         int n = ;
         Transform[] transforms = Selection.GetTransforms(SelectionMode.TopLevel | SelectionMode.OnlyUserModifiable);

         foreach (Transform transform in transforms)
         {
             transform.name = transform.name + n.ToString();
             n++;
         }
     }

     [MenuItem("GameObject/Add Child %g")]
     static void MenuAddChild()
     {
         Transform[] transforms = Selection.GetTransforms(SelectionMode.TopLevel | SelectionMode.OnlyUserModifiable);

         foreach (Transform transform in transforms)
         {
             GameObject newChild = new GameObject("_Child");
             newChild.transform.parent = transform;

         }
     }

     [MenuItem("ChangeName/ReNameUILabelX")]
     static void ReNameUILableX()
     {
         UIButton [] UIButtions = GameObject.Find("CenterMenu").transform.GetChild().GetComponentsInChildren<UIButton>();

         foreach (UIButton uiButtion in UIButtions)
         {
             if (uiButtion.gameObject.activeSelf)
             {
                 uiButtion.GetComponentInChildren<EptBtnOnClick>().EptName="X_"+ uiButtion.GetComponentInChildren<UILabel>().text;
             }
         }
     }

 }

ScriptableWizard:
继承自EditorWindow，主要用来做向导。有2个按钮，一个是Create,另一个是Other。当我们使用它的时候，他始终显示在最上层，不会被unity其他窗口遮挡。

   SelectionMode:

can be used to tweak the selection returned by Selection.GetTransforms.

Note: This is an editor class. To use it you have to place your script in Assets/Editor inside your project folder. Editor classes are in the UnityEditor namespace so for C# scripts you need to add "using UnityEditor;" at the beginning of the script.

The default transform selection mode is: SelectionMode.TopLevel | SelectionMode.ExcludePrefab | SelectionMode.Editable.

Unfiltered	Return the whole selection.
TopLevel	Only return the topmost selected transform. A selected child of another selected transform will be filtered out.
Deep	Return the selection and all child transforms of the selection.
ExcludePrefab	Excludes any prefabs from the selection.
Editable	Excludes any objects which shall not be modified.
Assets	Only return objects that are assets in the Asset directory.
DeepAssets	If the selection contains folders, also include all assets and subfolders within that folder in the file hierarchy.

补充（190426）：

一键导出包，非常方便迁移测试程序或者自己的代码库

 using System;
 #if UNITY_EDITOR
 using UnityEditor;
 using System.IO;
 #endif
 using UnityEngine;

 namespace WSFramework{

     public class ExportPakge{

 #if UNITY_EDITOR
          [MenuItem("WSTool/ExportPac %e")]
         private static void ExportPackageAndCopyName(){
             var path="Assets/WSFramework";
             var fileName="WS_"+DateTime.Now.ToString("yyyyMMdd_hh")+".unitypackage";

             //--剪切板API，导出后直接粘贴出当前包的名字
             GUIUtility.systemCopyBuffer=fileName;

             //--导出package api
             AssetDatabase.ExportPackage(path,fileName, ExportPackageOptions.Recurse);

             //--打开asset目录
             Application.OpenURL("file://"+Application.dataPath);

         }
     }

 #endif
 }

assetstore一个很优秀的编辑器扩展插件，只需要在类中添加 attribute标签就能方便的实现很多功能，有兴趣的可以下载学习下