UnityEditor(2) 打造属于自己的菜单&快捷键

当你习惯了ctrl + c 还会鼠标右键选复制么？一个成熟的软件自然也少不了各种快捷键，当然快捷键也是一个菜单选项的快速入口，所以菜单和快捷键是分不开的。

用快捷键者，快捷也。

Unity提供了不少键位，这里就不阐述了，下面两个网址是Unity自带的快捷键：

http://docs.unity3d.com/Manual/UnityHotkeys.html

http://www.ceeger.com/Manual/UnityHotkeys.html

正文

需求并不可怕，可怕的是不合理的需求。

但是此时，我们得站在策划的角度思考未来的人生，思考有哪些功能可以做成菜单或是快捷键，下面列举一下我的：

复制、粘贴物体的世界坐标（再也不用手输坐标了）
删除空文夹（菜单only）
SendMessage到物体的某方法（直到现在还一直受用，我太TM机智了）
TimeScale的递增递减（用它来控制游戏进程太爽了）
让物品的变换（坐标、旋转、大小）变为整数。（专治强迫症，Unity复制物品时，Scale经常变为0.999999，此时这个方法的价值就突现了）

有光的地方，就会有着阴影，并非每个方法都是有用的，策划犯的错，我同样也会犯，或许不同的地方在于心理阴影的面积；自己背别人的锅，会产生抱怨，而自己背自己的锅，会得到教训，叫慎重！这篇文章不讨论团队合作的重要性，所以回归主题，细数往事：

加入3D音效，并自动录入设置
将所有的粒子数量设置在XX以下
创建Prefab到指定的地方
Unity自动寻路一键设置
给每一个新场景自动生成快速进入的菜单项（技术定位错误，以致无法实现）

或许是天马行空的胡思乱想，也可能是纯粹的想扩充菜单库，但是最终没有形成有意义的产物。

码文

1.规则

快捷键对应的字符：

% 对应 Ctrl (mac cmd)
# 对应 Shift
& 对应 Alt
abc……xyz 123……0-+ 为键盘键位

2.例1

将一个方法加入菜单，并且生成对应的快捷键：

using UnityEditor;

public class TestMenu
{
    [MenuItem("MyTools/SendMessage方法KMDebug到对象 %#l")]
    public static void KMDebug()
    {
        GameObject go = Selection.activeGameObject;
        if (go != null)
        {
            go.SendMessage("KMDebug", SendMessageOptions.DontRequireReceiver);
        }
    }
}

using UnityEditor;

public class TestMenu

{

[MenuItem("MyTools/SendMessage方法KMDebug到对象 %#l")]

public static void KMDebug()

{

GameObject go = Selection.activeGameObject;

if (go != null)

{

go.SendMessage("KMDebug", SendMessageOptions.DontRequireReceiver);

}

Selection.activeGameObject  //此函数为你在当前场景中选择的物品

1	Selection.activeGameObject //此函数为你在当前场景中选择的物品

这个快捷键的属性是，增加开发人员在项目中的战斗力5000，令BUG无处逢生，居家开发之必备良药。广告结束，在你的脚本里写入KMDebug方法时，可以按快捷键运行方法里面的内容，即使是编辑器不运行的情况下也能执行，游戏运行中也是如此，这时能用到的地方就多了去了。如测试技能的时候，我想要CD快点；KMDebug里直接可以改CD参数；如测试一个数学函数直接写里面Call。

3.例2：删除空文件夹

1.在Editor下新建脚本 DeleteEmptyFolders

using UnityEditor;
using UnityEngine;
using System;
using System.IO;

/// <summary>
///delete empty folders
/// </summary>
public class DeleteEmptyFolders
{
    public const string TITLE_AREYOUSURE = "你确定吗";
    public const string DESC_DELETE_FOLDERS = "是否删除所有的空文件夹";

    static int numFoldersDeleted = 0;
    static int numFoldersChecked = 0;


    [MenuItem("Tools/删除空文件夹")]// add item to menu
    static void DeleteFolders()
    {
        numFoldersChecked = 0;
        string[] dirs = Directory.GetDirectories("Assets");

        foreach (string dirPath in dirs)
        {
            if (Directory.GetFiles(dirPath).Length == 0 && Directory.GetDirectories(dirPath).Length == 0)
            {
                numFoldersChecked++;
            }
        }

        if (numFoldersChecked > 0)
            if (EditorUtility.DisplayDialog
                    (TITLE_AREYOUSURE,
                    DESC_DELETE_FOLDERS, "Yes", "No"))
            {
                //Debug.Log("Running DeleteEmptyFolders editor script...");	
                RemoveFolders("Assets");					// start recursive call from root of Assets folder
                ShowDeletedFolderCount();					// display output log of empty folders found
                AssetDatabase.Refresh();					// refresh project hierarchy window in Unity editor
            }
    }

    static void RemoveFolders(string path)			// recursive function	
    {
        string[] dirs = Directory.GetDirectories(path);

        foreach (string dirPath in dirs)
        {
            RemoveFolders(dirPath);					// recursive call, performing depth-first search

            // check if no files or folders inside the current path, to see if it's empty
            if (Directory.GetFiles(dirPath).Length == 0 && Directory.GetDirectories(dirPath).Length == 0)
            {
                //Debug.Log("Empty folder found!!!! called: " + dirPath);				
                Directory.Delete(dirPath);			// delete empty folder
                File.Delete(dirPath + ".meta");		// delete metafile also, if exists
                numFoldersDeleted++;
            }
        }
    }

    static void ShowDeletedFolderCount()
    {
        if (numFoldersDeleted > 0)
            Debug.Log("Empty folders deleted: " + numFoldersDeleted + ".  Folders checked: " + numFoldersChecked + ".");
        numFoldersDeleted = 0;						// reset counters for next run
        numFoldersChecked = 0;
    }
}

using UnityEditor;

using UnityEngine;

using System;

using System.IO;

/// <summary>

///delete empty folders

/// </summary>

public class DeleteEmptyFolders

{

public const string TITLE_AREYOUSURE = "你确定吗";

public const string DESC_DELETE_FOLDERS = "是否删除所有的空文件夹";

static int numFoldersDeleted = 0;

static int numFoldersChecked = 0;

[MenuItem("Tools/删除空文件夹")]// add item to menu

static void DeleteFolders()

{

numFoldersChecked = 0;

string[] dirs = Directory.GetDirectories("Assets");

foreach (string dirPath in dirs)

{

if (Directory.GetFiles(dirPath).Length == 0 && Directory.GetDirectories(dirPath).Length == 0)

{

numFoldersChecked++;

}

if (numFoldersChecked > 0)

if (EditorUtility.DisplayDialog

(TITLE_AREYOUSURE,

DESC_DELETE_FOLDERS, "Yes", "No"))

{

//Debug.Log("Running DeleteEmptyFolders editor script...");

RemoveFolders("Assets"); // start recursive call from root of Assets folder

ShowDeletedFolderCount(); // display output log of empty folders found

AssetDatabase.Refresh(); // refresh project hierarchy window in Unity editor

}

static void RemoveFolders(string path) // recursive function

{

string[] dirs = Directory.GetDirectories(path);

foreach (string dirPath in dirs)

{

RemoveFolders(dirPath); // recursive call, performing depth-first search

// check if no files or folders inside the current path, to see if it's empty

if (Directory.GetFiles(dirPath).Length == 0 && Directory.GetDirectories(dirPath).Length == 0)

{

//Debug.Log("Empty folder found!!!! called: " + dirPath);

Directory.Delete(dirPath); // delete empty folder

File.Delete(dirPath + ".meta"); // delete metafile also, if exists

numFoldersDeleted++;

}

static void ShowDeletedFolderCount()

{

if (numFoldersDeleted > 0)

Debug.Log("Empty folders deleted: " + numFoldersDeleted + ". Folders checked: " + numFoldersChecked + ".");

numFoldersDeleted = 0; // reset counters for next run

numFoldersChecked = 0;

}

新建几个空文件夹，菜单中选择后：

窗口提示代码：

EditorUtility.DisplayDialog

1	EditorUtility.DisplayDialog

结尾

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