Unity编辑器扩展（Advanced Editor Scripting）

秒速五厘米 2022-02-15 19:38 304阅读 0赞

### 课程开发介绍 ###

创建一个Unity3D工程，名字叫做Advanced Editor Scripting。 创建一个Editor的文件夹，在打包时不会被打包。

![20190424205529356.png][]

### 使用MenuItem添加菜单栏按钮 ###

创建一个名为Tools的脚本，添加下面的代码

using UnityEditor;
    using UnityEngine;
    
    public class Tools 
    {
        [MenuItem("Tools/test")]
        static void Test()
        {
            Debug.Log("Test");
        }
    }

编辑器就会出现下面的按键

![20190424210503921.png][]

![20190424210519855.png][]

### 关于MenuItem的路径设置和现实的先后顺序设置 ###

using UnityEditor;
    using UnityEngine;
    
    public class Tools 
    {
        //[MenuItem("Tools/test")]
        //static void Test()
        //{
        //    Debug.Log("Test");
        //}
    
        //每一个菜单栏的priority优先级默认为1000
        //priority在11之内是一个组，大于11就是另外一组
        [MenuItem("Tool/Test1",false,1)]
        static void Test1()
        {
            Debug.Log("Test1");
        }
    
        [MenuItem("Tool/Test2",false,12)]
        static void Test2()
        {
            Debug.Log("Test2");
        }
    
        [MenuItem("Tool/Test3",false,0)]
        static void Test3()
        {
            Debug.Log("Test3");
        }
    
        [MenuItem("GameObject/MyTool", false, 10)]
        static void MyTool()
        {
            Debug.Log("MyTool");
        }
    }

![20190424213143152.png][]

![20190424213209461.png][]

### 导入射击项目 ###

### ![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2tvdXpodWFuamluZzE4NDk_size_16_color_FFFFFF_t_70][] ###

### 给组件的右键菜单栏添加按钮 ###

给Player上的脚本组件添加一个右键菜单单栏按钮

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2tvdXpodWFuamluZzE4NDk_size_16_color_FFFFFF_t_70 1][]

### 关于MenuCommand的使用 ###

using System.Collections;
    using System.Collections.Generic;
    using UnityEngine;
    using UnityEditor;
    
    
    public class PlayerEditor  
    {
        //CONTEXT 组件名 按钮名
        [MenuItem("CONTEXT/PlayerHealth/InitHealthAndSpeed")]
        static void InitHealthAndSpeed(MenuCommand cmd)//menucommand是当前正在操作的组件
        {
            CompleteProject.PlayerHealth health = (CompleteProject.PlayerHealth)cmd.context;
            health.startingHealth = 200;
            health.flashSpeed = 10;
        }
    
        /// <summary>
        /// 取消重力
        /// </summary>
        /// <param name="cmd"></param>
        [MenuItem("CONTEXT/Rigidbody/Clear")]
        static void ClearMassAndGravity(MenuCommand cmd)
        {
            Rigidbody rgd = cmd.context as Rigidbody;
            rgd.mass = 0;
            rgd.useGravity = false;
        }
    }

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2tvdXpodWFuamluZzE4NDk_size_16_color_FFFFFF_t_70 2][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2tvdXpodWFuamluZzE4NDk_size_16_color_FFFFFF_t_70 3][]![20190425092907399.png][]

![20190425093054678.png][]![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2tvdXpodWFuamluZzE4NDk_size_16_color_FFFFFF_t_70 4][]

### 学习使用Selection获取选择的游戏物体 ###

选择物体的操作

[MenuItem("Tool/show info",false,1)]
        static void Test1()
        {
            Debug.Log(Selection.activeContext.name);//使我们第一个选择的游戏物体
            Debug.Log(Selection.objects.Length);//获取选择游戏物体的数目
    
        }

删除物体的操作

[MenuItem("GameObject/my delete", false, 11)]
        static void Mydelete()
        {
            foreach (object o in Selection.objects)
            {
                GameObject.DestroyImmediate(o as GameObject);
            }
            //需要把删除操作注册到 操作记录里面，才能使用ctrl+z恢复
        }

### 编写可以撤销的删除操作 ###

[MenuItem("GameObject/my delete", false, 11)]
        static void Mydelete()
        {
            foreach (object o in Selection.objects)
            {
                //GameObject.DestroyImmediate(o as GameObject);
                //需要把删除操作注册到 操作记录里面，才能使用ctrl+z
    
                Undo.DestroyObjectImmediate(o as GameObject);
                //利用Undo进行的删除操作，是可以撤销的
            }
    
        }

### 如何给菜单项添加快捷键 ###

//%=ctrl #=shift &=alt
        //使用快捷键ctrl+q触发
        [MenuItem("Tool/Test2 %q",false,12)]
        static void Test2()
        {
            Debug.Log("Test2");
        }
    
        //使用快捷键t触发
        [MenuItem("Tool/Test3 _t",false,0)]
        static void Test3()
        {
            Debug.Log("Test3");
        }

### 控制菜单项是否启用的功能 ###

//Mydelete的验证函数，当下面的函数返回为true时，才能点击my delete
        [MenuItem("GameObject/my delete", true, 11)]
        static bool MydeleteValidate()
        {
            if (Selection.objects.Length > 0)
                return true;
            else
                return false;
        }
    
        [MenuItem("GameObject/my delete", false, 11)]
        static void Mydelete()
        {
            foreach (object o in Selection.objects)
            {
                //GameObject.DestroyImmediate(o as GameObject);
                //需要把删除操作注册到 操作记录里面，才能使用ctrl+z
    
                Undo.DestroyObjectImmediate(o as GameObject);
                //利用Undo进行的删除操作，是可以撤销的
            }
    
        }

### 关于ContextMenu和ContextMenuItem的使用 ###

ContextMenu的使用

[ContextMenu("SetColor")]
            void SetColor()
            {
                flashColour = Color.green;
            }

![20190425105236875.png][]

ContextMenuItem的使用

[ContextMenuItem("AddHp","AddHp")]
            public int startingHealth = 100;  
            void AddHp()
            {
                startingHealth += 20;
            }

![20190425105350679.png][]

### 学习如何创建对话框 ###

创建一个EnemyChange脚本，用来创建对话框来快捷改变Enemy属性

using System.Collections;
    using System.Collections.Generic;
    using UnityEngine;
    using UnityEditor;
    
    public class EnemyChange : ScriptableWizard
    {
        [MenuItem("Tools/CreateWizard")]
        static void CreateWizard()
        {
            ScriptableWizard.DisplayWizard<EnemyChange>("统一修改敌人");
        }
    
        public int changeHealthValue = 10;
        public int changeFlashSpeedValue = 10;
    }

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2tvdXpodWFuamluZzE4NDk_size_16_color_FFFFFF_t_70 5][]

### 如何兼容按钮点击统一修改字段 ###

在EnemyChange脚本中添加 下列代码

//检测create按钮的点击
        private void OnWizardCreate()
        {
            GameObject [] enemyPrefabs =  Selection.gameObjects;
            foreach (GameObject go in enemyPrefabs)
            {
                CompleteProject.EnemyHealth hp = go.GetComponent<CompleteProject.EnemyHealth>();
                Undo.RecordObject(hp, "change health and speed");
                hp.startingHealth += changeHealthValue;
                hp.sinkSpeed += changeSinkSpeedValue;
            }
        }

![20190425113139470.png][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2tvdXpodWFuamluZzE4NDk_size_16_color_FFFFFF_t_70 6][]

![20190425113225969.png][]

### 显示提示框的帮助信息和错误信息 ###

//当前字段值修改的时候会被调用
        private void OnWizardUpdate()
        {
            errorString = null;
            helpString = null;
            if (Selection.gameObjects.Length > 0)
            {
                helpString = "你当前选择了" + Selection.gameObjects.Length + "个敌人";
            }
            else
            {
                errorString = "请选择至少一个敌人";
            }
        }
    
        private void OnSelectionChange()
        {
            OnWizardUpdate();
        }

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2tvdXpodWFuamluZzE4NDk_size_16_color_FFFFFF_t_70 7][]![20190426093358258.png][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2tvdXpodWFuamluZzE4NDk_size_16_color_FFFFFF_t_70 8][]![20190426093421878.png][]

### 创建OtherButton按钮并监听按钮点击 ###

[MenuItem("Tools/CreateWizard")]
        static void CreateWizard()
        {
            ScriptableWizard.DisplayWizard<EnemyChange>("统一修改敌人","Change And CLose","Change");
        }
    
        private void OnWizardOtherButton()
        {
            OnWizardCreate();
        }

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2tvdXpodWFuamluZzE4NDk_size_16_color_FFFFFF_t_70 9][]

### 使用ShowNotification显示提示信息 ###

ShowNotification(new GUIContent(Selection.gameObjects.Length + "个游戏物体的值被修改"));

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2tvdXpodWFuamluZzE4NDk_size_16_color_FFFFFF_t_70 10][]

### 使用EditorPrefs保存数据 ###

const string changeHealthValueKey = "EnemyChange.changeStartHealthValue";
        const string changeSinkSpeedValueKey = "EnemyChange.changeSinkSpeedValue";
        /// <summary>
        /// 当窗口被创建的时候调用
        /// </summary>
        private void OnEnable()
        {
            EditorPrefs.GetInt(changeHealthValueKey,changeHealthValue);
            EditorPrefs.GetInt(changeSinkSpeedValueKey,changeSinkSpeedValue);
        }
    
    
        //调用的时候
        EditorPrefs.SetInt(changeHealthValueKey, changeHealthValue);
        EditorPrefs.SetInt(changeSinkSpeedValueKey, changeSinkSpeedValue);

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2tvdXpodWFuamluZzE4NDk_size_16_color_FFFFFF_t_70 11][]

关闭打开之后

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2tvdXpodWFuamluZzE4NDk_size_16_color_FFFFFF_t_70 12][]

### 显示进度条 ###

//检测create按钮的点击
        private void OnWizardCreate()
        {
            GameObject [] enemyPrefabs =  Selection.gameObjects;
            EditorUtility.DisplayCancelableProgressBar("进度", "0/" + enemyPrefabs.Length + "完成修改值", 0);
            int count = 0;
            foreach (GameObject go in enemyPrefabs)
            {
                CompleteProject.EnemyHealth hp = go.GetComponent<CompleteProject.EnemyHealth>();
                Undo.RecordObject(hp, "change health and speed");
                hp.startingHealth += changeHealthValue;
                hp.sinkSpeed += changeSinkSpeedValue;
                count++;
                EditorUtility.DisplayCancelableProgressBar("进度", count+"/" + enemyPrefabs.Length + "完成修改值", (float)count/enemyPrefabs.Length);
            }
            EditorUtility.ClearProgressBar();
            ShowNotification(new GUIContent(Selection.gameObjects.Length + "个游戏物体的值被修改"));
        }

### ![20190426101129180.png][] ###

### 创建自定义窗口 ###

using System.Collections;
    using System.Collections.Generic;
    using UnityEngine;
    using UnityEditor;
    
    public class MyWindow : EditorWindow
    {
        [MenuItem("Window/show my window")]
        static void ShowMyWindow()
        {
            MyWindow window = EditorWindow.GetWindow<MyWindow>();
            window.Show();
        }
    
        private string name = "";
        private void OnGUI()
        {
            GUILayout.Label("这是我的窗口");
            name = GUILayout.TextField(name);
            if (GUILayout.Button("创建"))
            {
                GameObject go = new GameObject(name);
                Undo.RegisterCompleteObjectUndo(go, "create gameobject");
            }
        }
    }

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2tvdXpodWFuamluZzE4NDk_size_16_color_FFFFFF_t_70 13][]![20190426103800831.png][]

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