Unity-Find-Script-References
发表于2015-10-09
背景：
有时候我们需要找出项目中所有的引用到某个脚本的地方（比如Prefabs/Scene GameObjects等）。当项目比较大时，手工寻找还是非常费时费力的事情。本文尝试通过插件自动搜索。
分析：
基本的思路是：首先筛选出项目中全部Prefab，加载每个Prefab并判断是否有挂载目标脚本，然后载入每个场景，判断场景中每个物体是否有挂载目标脚本，最后列出结果。
实现：
1，在右键菜单项中添加菜单：
新建一个类，命名为 FindnoxssRef ，并继承自 EditorWindow 。添加如下方法：xsstagxsstag/p>
[MenuItem(“Assets/Find All Reference”)]
public static void ShowWindow()
{
//Show existing window instance. If one doesn’t exist, make one.
EditorWindow.GetWindow(typeof(FindnoxssRefxsstagxsstag/span>));
}
这段代码会在菜单中添加一个名为“Find All Reference”的菜单项。选中菜单项会打开一个FindnoxssRef窗口实例。当然此时窗口中没有任何内容。xsstagxsstag/p>
2，窗口基本显示逻辑：
void OnGUI()
{
if (Selection.activeObject == null)
{
GUILayout.Label(“select a noxss file xsstagxsstag/span>from Project Window.”);
return;
} //判断选中项是否为脚本
var name = Selection.activeObject.name;
System.Reflection.Assembly assembly = System.Reflection.Assembly.GetExecutingAssembly();
var dict = System.IO.Path.GetDirectoryName(assembly.Location);
assembly = System.Reflection.Assembly.LoadFile(System.IO.Path.Combine(dict, "Assembly-CSharp.dll"));
var selectType = assembly.GetType(name);
if (string.IsNullOrEmpty(name) || selectType == null)
{
GUILayout.Label("select a noxss file from Project Window."xsstagxsstag/span>);
return;
}
GUILayout.BeginVertical();
GUILayout.BeginHorizontal(); //列出脚本名称和“Find”按钮
GUILayout.Label(name);
bool click = GUILayout.Button("Find");
GUILayout.EndHorizontal();
GUILayout.Space(10); //列出搜索结果
if (findResult != null && findResult.Count > 0)
{
GUILayout.BeginScrollView(Vector2.zero, GUIStyle.none);
foreach (string path in findResult)
{
GUILayout.Label(path);
}
GUILayout.EndScrollView();
}
if (click)
{
Find(selectType);
}
GUILayout.EndVertical();
void Find(System.Type type){ //step 1:find ref in assets
}
然后，实现Find方法，搜索指定Type的全部引用：
void Find(System.Type type){ //step 1:find ref in assets
//filter all GameObject from assets（so-called 'Prefab'）
var guids = AssetDatabase.FindAssets("t:GameObject");
findResult = new List<string>();
var tp = typeof(GameObject);
foreach (var guid in guids)
{
var path = AssetDatabase.GUIDToAssetPath(guid);
//load Prefab
var obj = AssetDatabase.LoadAssetAtPath(path, tp) as GameObject;
//check whether prefab contains noxss with type 'type'xsstag
if (obj != null) { var cmp = obj.GetComponent(type);
if (cmp == null) { cmp = obj.GetComponentInChildren(type); }
if (cmp != null) { findResult.Add(path); } } }
//step 2: find ref in scenes
//save current scene
string curScene = EditorApplication.currentScene;
EditorApplication.SaveScene();
//find all scenes from dataPath
string[] scenes = Directory.GetFiles(Application.dataPath, "*.unity", SearchOption.AllDirectories);
//iterates all scenes
foreach (var scene in scenes) {
EditorApplication.OpenScene(scene);
//iterates all gameObjects
foreach (GameObject obj in FindObjectsOfType<GameObject>()) {
var cmp = obj.GetComponent(type);
if (cmp == null) {
cmp = obj.GetComponentInChildren(type); }
if (cmp != null) { findResult.Add(scene.Substring(Application.dataPath.Length) + "Assets:" + obj.name); } } } //reopen current scene
EditorApplication.OpenScene(curScene);
Debug.Log ("finish");
}
此时切换到Unity，在Project窗口选中一个scrpit，右键选择『Find All Reference』，在打开的窗口选择『Find』按钮，即可看到下面列出了所有引用了这个脚本的位置（如果项目过于庞大，可能需要等待一会儿）。