Unity 保存场景物体修改到Prefab

有时候会在场景中修改大量的prefab的实例物体，然后又需要同步到prefab上，这个脚本就非常有用了：

using UnityEngine;
using UnityEditor;

public class EditorHelp
{
    [MenuItem("Tools/自动保存修改到Prefab", false, 0)]
    static void AutoSaveGameObjectToPrefab()
    {
        GameObject[] selections = Selection.gameObjects;
        foreach (GameObject select in selections)//遍历每个选中的物体
        {
            //获取prefab路径
            string prefabPath = PrefabUtility.GetPrefabAssetPathOfNearestInstanceRoot(select);
            Debug.Log(prefabPath);
            //如果资源不对则不继续执行
            if (prefabPath.EndsWith(".prefab") == false) continue;

            //因为prefab保存无法保存最父物体的Position和rotation
            //不知道Unity怎么考虑的，就是直接点场景中的apply也无法保存root物体的位置和角度，但是大小又可以
            //因此我们这里自己进行一下值获取和赋值
            GameObject prefab = AssetDatabase.LoadAssetAtPath(prefabPath, typeof(GameObject)) as GameObject;
            prefab.transform.localPosition = select.transform.localPosition;
            prefab.transform.rotation = select.transform.rotation;

            //保存修改
            bool isSuccess = false;
            PrefabUtility.SaveAsPrefabAsset(select, prefabPath, out isSuccess);
            Debug.Log("修改" + prefabPath + ":" + isSuccess);
        }
        AssetDatabase.Refresh();
    }
}