【Unity】指定したフォルダ内のプレハブを一括で編集するスクリプトのテンプレート

スクリプト

using System.Linq;
using UnityEditor;
using UnityEngine;

internal static class Example
{
    [MenuItem( "Tools/Hoge" )]
    private static void Hoge()
    {
        const string directoryName = "Assets/";

        var assetPaths = AssetDatabase
                .GetAllAssetPaths()
                .Where( x => x.StartsWith( directoryName ) )
                .Where( x => AssetDatabase.LoadAssetAtPath<GameObject>( x ) != null )
                .ToArray()
            ;

        try
        {
            AssetDatabase.StartAssetEditing();

            foreach ( var assetPath in assetPaths )
            {
                using var editingScope = new PrefabUtility.EditPrefabContentsScope( assetPath );
                var       prefabRoot   = editingScope.prefabContentsRoot;
                var       transforms   = prefabRoot.GetComponentsInChildren<Transform>();

                if ( transforms.Length <= 0 ) continue;

                // TODO:
            }
        }
        finally
        {
            AssetDatabase.StopAssetEditing();
        }
    }
}