如何在 Unity 中获取某个对象的依赖关系

Question

如题所述

Answer 1

在 Unity 中目前我发现了获取依赖关系的两个 API 接口，分别是：
EditorUtility.CollectDependencies
AssetDatabase.GetDependencies
其中 AssetDatabase.GetDependencies 获取到的结果就是上面演示的那样，是大粒度的依赖关系。而 EditorUtility.CollectDependencies 获取到的是小粒度的依赖关系，所依赖的组件和 Shader 等都会列出来，非常的仔细。
C#
#if UNITY_EDITOR
using UnityEngine;
using System.Collections;
using UnityEditor;
namespace PT.Find
{
[ExecuteInEditMode]
public static class Find
{
[MenuItem("Find/What objects in scene use this?", false, 20)]
public static void SelectSceneUsesOfAsset()
{
Object selectedObject = Selection.activeObject;
if (selectedObject == null)
{
return;
}
Object[] roots = new Object[]{ selectedObject };
var objs = EditorUtility.CollectDependencies(roots);
string path = AssetDatabase.GetAssetPath(selectedObject);
var objs2 = AssetDatabase.GetDependencies(path);
foreach (var obj in objs)
{
Debug.Log(obj.GetType().Name);
}
}
}
}
#endif
#if UNITY_EDITOR
using UnityEngine;
using System.Collections;
using UnityEditor;
namespace PT.Find
{
[ExecuteInEditMode]
public static class Find
{
[MenuItem("Find/What objects in scene use this?", false, 20)]
public static void SelectSceneUsesOfAsset()
{
Object selectedObject = Selection.activeObject;
if (selectedObject == null)
{
return;
}
Object[] roots = new Object[]{ selectedObject };
var objs = EditorUtility.CollectDependencies(roots);
string path = AssetDatabase.GetAssetPath(selectedObject);
var objs2 = AssetDatabase.GetDependencies(path);
foreach (var objin objs)
{
Debug.Log(obj.GetType().Name);
}
}
}
}
#endif
不得不说，Unity Editor 提供的默认的依赖查找的功能好弱，包括反向依赖关系，引用关系丢失等功能。或许我们可以利用这些接口自己做一个好用点的依赖关系查找插件。