タグ、レイヤー、シーン名を定数で管理するクラスを自動で作成するスクリプト【Unity】

SettingClassCreator.cs

/*ブログ説明用
DirectoryPath.TOP_RESOURCES = "Assets/Resources/";
FilePath.SCENE_DATA = "SceneData"
Extension.ASSET = ".asset";
*/

using System;
using System.IO;
using System.Text;
using UnityEditor;
using UnityEditorInternal;
using UnityEngine;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;

/// <summary>
/// タグ、レイヤー、シーン、ソーティングレイヤー名を定数で管理するクラスを自動で作成するスクリプト
/// </summary>
public class SettingClassCreator : AssetPostprocessorEx{

  //変更を監視するディレクトリ名
  private const string TARGET_DIRECTORY_NAME = "ProjectSettings";

  //コマンド名
  private const string COMMAND_NAME = "Tools/Create/Setting Class";

  //ProjectSettings以下の設定が編集されたら自動で各スクリプトを作成
  private static void OnPostprocessAllAssets (string[] importedAssets, string[] deletedAssets, string[] movedAssets, string[] movedFromAssetPaths)
  {
    List<string[]> assetsList = new List<string[]> (){
      importedAssets
    };

    List<string> targetDirectoryNameList = new List<string> (){
      TARGET_DIRECTORY_NAME
    };

    if(ExistsDirectoryInAssets(assetsList, targetDirectoryNameList)){
      Create ();
    }
  }

  //スクリプトを作成します
  [MenuItem(COMMAND_NAME)]
  private static void Create()
  {

    //タグ
    Dictionary<string, string> tagDic = InternalEditorUtility.tags.ToDictionary(value => value);
    ConstantsClassCreator.Create ("TagName", "タグ名を定数で管理するクラス", tagDic);


    //シーン
    Dictionary<string, string> scenesNameDic = new Dictionary<string, string>();
    Dictionary<string, int>    scenesNoDic   = new Dictionary<string, int>();

    for(int i = 0; i < EditorBuildSettings.scenes.Count(); i++){
      string sceneName = Path.GetFileNameWithoutExtension (EditorBuildSettings.scenes [i].path);
      scenesNameDic [sceneName] = sceneName;
      scenesNoDic   [sceneName] = i;
    }

    CreateSceneData (scenesNoDic);

    ConstantsClassCreator.Create ("SceneName", "シーン名を定数で管理するクラス",  scenesNameDic);
    ConstantsClassCreator.Create ("SceneNo"  , "シーン番号を定数で管理するクラス", scenesNoDic);


    //レイヤーとレイヤーマスク
    Dictionary<string, int> layerNoDic     = InternalEditorUtility.layers.ToDictionary(layer => layer, layer => LayerMask.NameToLayer (layer));
    Dictionary<string, int> layerMaskNoDic = InternalEditorUtility.layers.ToDictionary(layer => layer, layer => 1 <<  LayerMask.NameToLayer (layer));

    ConstantsClassCreator.Create ("LayerNo",     "レイヤー番号を定数で管理するクラス",      layerNoDic);
    ConstantsClassCreator.Create ("LayerMaskNo", "レイヤーマスク番号を定数で管理するクラス", layerMaskNoDic);


    //ソーティングレイヤー
    Dictionary<string, string> sortingLayerDic = GetSortingLayerNames ().ToDictionary(value => value);
    ConstantsClassCreator.Create ("SortingLayerName", "ソーティングレイヤー名を定数で管理するクラス", sortingLayerDic);

  }

  //シーン名とシーン番号を関連付けたSceneDataを書き出す
  private static void CreateSceneData(Dictionary<string, int> scenesNoDic){

    string dataPath = DirectoryPath.TOP_RESOURCES + FilePath.SCENE_DATA + Extension.ASSET;

    //SceneDataを新規作成、既にあるものは削除
    SceneData data = ScriptableObject.CreateInstance<SceneData> ();
    AssetDatabase.DeleteAsset (dataPath);
    AssetDatabase.CreateAsset ((ScriptableObject)data, dataPath);

    data.hideFlags = HideFlags.NotEditable;

    foreach (KeyValuePair<string, int> valuePair in scenesNoDic) {

      SceneData.Param param = new SceneData.Param ();
      param.Name = valuePair.Key;
      param.No   = valuePair.Value;

      data.list.Add (param);
    }

    //変更を反映
    ScriptableObject obj = AssetDatabase.LoadAssetAtPath (dataPath, typeof(ScriptableObject)) as ScriptableObject;
    EditorUtility.SetDirty (obj);

  }

  //sortinglayerの名前一覧を取得
  private static string[] GetSortingLayerNames() {

    Type internalEditorUtilityType = typeof(InternalEditorUtility);
    PropertyInfo sortingLayersProperty = internalEditorUtilityType.GetProperty("sortingLayerNames", BindingFlags.Static | BindingFlags.NonPublic);
    return (string[])sortingLayersProperty.GetValue(null, new object[0]);

  }


}