Unity预制体Prefab类型与状态的判定

• • 1 普通对象
  • 2 预制实例对象【场景中实例化】
  • 3 预制资源对象【仅磁盘资源】
  • • 3.1 预制空间的对象
    • 3.2 点击蓝色预制体【对象=蓝色】
  • 4 预制体类型的判定代码示例

//这里用类型可以判定普通对象
PrefabUtility.GetPrefabAssetType(gameObject).ToString() == "NotAPrefab"  

//是否预制体实例
var isIns = PrefabUtility.IsPartOfPrefabInstance(gameObject);

双击蓝色预制体，打开预制体【对象=白色】

Debug.Log("是否预制资源！"+ PrefabUtility.IsPartOfPrefabAsset(gameObject));

Debug.Log("是否预制资源！"+ PrefabUtility.IsPartOfPrefabAsset(gameObject));

using UnityEngine;

#if UNITY_EDITOR
using UnityEditor;
#endif

/// 

/// 预制体类型检测
/// 
public class Prefab_Check : MonoBehaviour
{

#if UNITY_EDITOR
    /// 

    /// 对象任意组件值变化时，OnValidate起作用！
    /// 单纯的OnValidate函数会使输出不稳定，类型获取放到其他函数！
    /// 这里有GUI 和 Editor 两个线程输出，获取的结果不准，容易出错！
    /// 
    private void OnValidate()
    {
        Debug.Log("Test Gameobject:" + name);
        
        Log();
        Check();
    }
#endif

    /// 

    /// 放在非OnValidate函数进行判定，结果准确
    /// 
    void Check()
    {
        //是否预制体实例
        var isIns = PrefabUtility.IsPartOfPrefabInstance(gameObject);
        if (isIns)
        {
            var type_ = PrefabUtility.GetPrefabAssetType(gameObject);

            switch (type_)
            {
                case PrefabAssetType.NotAPrefab:
                    Debug.Log("普通对象【非预制】！");
                    break;
                case PrefabAssetType.Regular:
                    Debug.Log("预制体实例【正常】！");
                    break;
                case PrefabAssetType.Model:
                    Debug.Log("预制体实例【模型】！");
                    break;
                case PrefabAssetType.Variant:
                    Debug.Log("预制体实例【变体】！");
                    break;
                case PrefabAssetType.MissingAsset:
                    Debug.Log("预制体实例[丢失资源]！");
                    break;
            }
        }
        else
        {
            Debug.Log("在资源中的预制体文件！");
        }
    }

    /// 

    /// 放在非OnValidate函数进行输出，结果准确
    /// 
    void Log()
    {
        //old fun
        Debug.Log("Old Type: " + PrefabUtility.GetPrefabType(gameObject).ToString());

        //new fun
        Debug.Log("New Type: " + PrefabUtility.GetPrefabAssetType(gameObject).ToString());

        //if a instance
        Debug.Log("是否实例：" + PrefabUtility.IsAnyPrefabInstanceRoot(gameObject));

        //IsPartOfPrefabInstance
        Debug.Log("是否属于实例一部分：" + PrefabUtility.IsPartOfPrefabInstance(gameObject));
    }
}