c# - 在 Unity 中自动为脚本添加自定义编辑器的快捷方式

Question

资源的 Unity 上下文菜单有各种有用的快捷方式，但没有快捷方式来快速创建自定义编辑器。相反，如果我想创建一个自定义编辑器，我必须完成所有这些烦人的样板步骤：

1. 创建Editor目录（如果尚未创建），然后转到正确的子目录
2. Create-> C# Script（实际上应该称为C# Component Script）
3. 删除所有MonoBehavior东西
4. 附加Editor到类名
5. 添加using UnityEditor
6. 添加CustomEditor属性
7. 继承自Editor

...在能够真正开始写我的东西之前...

在某处有捷径吗？

Answer 1

新的“添加自定义编辑器”菜单项

我编写了这个小脚本，它在上下文菜单中添加了一个新的Add Custom Editor MenuItem ：Assets

用法

1. 右键单击文件夹Component中的脚本。Scripts
2. 选择Add Custom Editor。
3. 该组件现在有一个Editor自动选择的组件，因此您可以根据需要对其进行修改。它具有相同的名称（Editor附加）并且位于相同的相对路径中，但在Scripts/Editor文件夹中

下面的屏幕截图显示了一个示例：给定 script Scripts/Test/TestScript，它在Scripts/Editor/Test/TestScriptEditor.

注意：MenuItem 将被禁用，除非您选择了以下脚本：

1. 有一个.cs文件结尾
2. 位于Scripts文件夹下的某处（可以嵌套在任何子目录中）
3. 不在Editor文件夹中
4. 还没有编辑器

设置

1. Create->C# Script
2. 叫它AddCustomEditorMenuItem
3. 用这个 gist中的代码替换它的内容
4. 完毕！
5. 测试它：右键单击Scripts目录中的脚本文件。

代码亮点

• 找出所有路径花费了大部分时间：

scriptName = scriptAsset.name;

// get system file path
scriptPath = Path.GetFullPath(ProjectRoot + AssetDatabase.GetAssetPath (scriptAsset));

// get file name of the editor file
editorFileName = GetEditorFileNameFor (scriptName);

// split the script path
var results = scriptPathRegex.Matches (scriptPath).GetEnumerator ();
results.MoveNext ();
var match = (Match)results.Current;
scriptsPath = match.Groups [1].Value;
scriptRelativePath = match.Groups [2].Value;

// re-combine editor path
editorPath = Path.Combine (scriptsPath, "Editor");
editorPath = Path.Combine (editorPath, scriptRelativePath);
editorPath = Path.Combine (editorPath, editorFileName);

// nicely formatted file path
editorPath = Path.GetFullPath(editorPath);
editorRelativeAssetPath = editorPath.Substring(ProjectRoot.Length);

• 一旦找到了路径，实际上编写文件就很容易了！

public void WriteCustomEditorFile ()
{
  // create all missing directories in the hierarchy
  Directory.CreateDirectory (Path.GetDirectoryName (editorPath));

  // write file
  File.WriteAllText (editorPath, BuildCustomEditorCode(scriptName));

  // let Asset DB pick up the new file
  AssetDatabase.Refresh();

  // highlight in GUI
  var os = AssetDatabase.LoadAllAssetsAtPath(editorRelativeAssetPath);
  EditorGUIUtility.PingObject (os[0]);

  // log
  Debug.Log("Created new custom Editor at: " + editorRelativeAssetPath);
}

// ...

/// <summary>
/// The menu item entry
/// </summary>
[MenuItem ("Assets/Add Custom Editor %#e", false, 0)]
public static void AddCustomEditor ()
{
  var scriptAsset = Selection.activeObject;

  // figure out paths
  var scriptPathInfo = new ScriptPathInfo (scriptAsset);

  // write file
  scriptPathInfo.WriteCustomEditorFile ();
}

• 如果您不喜欢新创建的编辑器的默认内容，请随意编辑此部分：

static string BuildCustomEditorCode (string name)
{
  return @"using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEditor;
[CustomEditor(typeof(" + name + @"))]
public class " + name + @"Editor : Editor {

public override void OnInspectorGUI ()
{
  base.OnInspectorGUI ();
  var obj = (" + name + @") target;
  if (GUILayout.Button (""Hi!"")) {
    // do something with obj when button is clicked
    Debug.Log(""Button pressed for: "" + obj.name);
    EditorGUIUtility.PingObject (obj);
  }
}
}";
}

• 如果您的菜单项始终显示为灰色，请考虑先查看我上面的解释，然后再调试确定是否选择了有效脚本的代码：

[MenuItem ("Assets/Add Custom Editor %#e", true, 0)]
public static bool ValidateAddCustomEditor ()
{
  var scriptAsset = Selection.activeObject;

  if (scriptAsset == null) {
    // nothing selected? (should probably not happen)
    return false;
  }

  var path = ProjectRoot + AssetDatabase.GetAssetPath (scriptAsset);

  if (!scriptPathRegex.IsMatch (path)) {
    // not a Script in the Script folder
    return false;
  }

  if (editorScriptPathRegex.IsMatch (path)) {
    // we are not interested in Editor scripts
    return false;
  }
    

  if (Directory.Exists (path)) {
    // it's a directory, but we want a file
    return false;
  }

  var scriptPathInfo = new ScriptPathInfo (scriptAsset);

  //        Debug.Log (scriptPathInfo.scriptPath);
  //        Debug.Log (Path.GetFullPath(AssetsPath + "/../"));
  //        Debug.Log (scriptPathInfo.editorRelativeAssetPath);
  //        Debug.Log (scriptPathInfo.editorPath);

  if (File.Exists (scriptPathInfo.editorPath)) {
    // editor has already been created
    return false;
  }

  // all good!
  return true;
}