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1.项目工程路径下创建文件夹：ABundles

2.AB包打包脚本：

using System.Collections.Generic;
using System.IO;
using UnityEditor;
using UnityEditor.SceneManagement;
using UnityEngine;
using UnityEngine.SceneManagement;public class AssetBundlePackage {static string[] GetBuildScenes() {List<string> sceneArray = new List<string>();foreach (EditorBuildSettingsScene e in EditorBuildSettings.scenes) {if (e == null) continue;if (e.enabled) sceneArray.Add(e.path);}return sceneArray.ToArray();}[MenuItem("BuildScene/Build")]public static void BuildScene() {//BundleAssetsBundle_Webgl();string folderPath = EditorUtility.OpenFolderPanel("Select Folder", "", "");Debug.Log("Selected Folder: " + folderPath);BuildPipeline.BuildPlayer(new string[] { "Assets/GameStart.unity" }, folderPath, BuildTarget.WebGL, BuildOptions.AutoRunPlayer);}[MenuItem("BuildScene/BuildForMobile")]public static void BuildSceneForMobile(){//BundleAssetsBundle_Webgl();string folderPath = EditorUtility.OpenFolderPanel("Select Folder", "", "");Debug.Log("Selected Folder: " + folderPath);BuildPipeline.BuildPlayer(new string[] { "Assets/GameStartMoibile.unity" }, folderPath, BuildTarget.WebGL, BuildOptions.AutoRunPlayer);}[MenuItem("SceneAsset/BuildCurrent")]public static void BuildCurrentScene() {string rootPath = Application.dataPath.ToLower().Replace("assets", "") + "ABundles/webgl/scenes";string scenePath = EditorSceneManager.GetActiveScene().path;string sceneName = System.IO.Path.GetFileNameWithoutExtension(scenePath).ToLower();AssetBundleBuild assetBundleBuild = new AssetBundleBuild();assetBundleBuild.assetNames = new []{ scenePath };assetBundleBuild.assetBundleName = sceneName + ".bundle";BuildPipeline.BuildAssetBundles(rootPath, new AssetBundleBuild[] { assetBundleBuild}, BuildAssetBundleOptions.None, BuildTarget.WebGL);}[MenuItem("SceneAsset/BuildAllScene")]public static void BuildAllScene() {bool isOk = EditorUtility.DisplayDialog("确认框", "是否将所有场景打成AB包", "确认", "取消");if (!isOk) {return;}//AB包路径是ABundlesstring rootPath = Application.dataPath.ToLower().Replace("assets","") + "ABundles/webgl/scenes";var allScenesPath = GetBuildScenes();foreach (var scenePath in allScenesPath) {string sceneName = System.IO.Path.GetFileNameWithoutExtension(scenePath).ToLower();AssetBundleBuild assetBundleBuild = new AssetBundleBuild();assetBundleBuild.assetNames = new[] { scenePath };assetBundleBuild.assetBundleName = sceneName + ".bundle";Debug.Log(sceneName + scenePath);BuildPipeline.BuildAssetBundles(rootPath, new AssetBundleBuild[] { assetBundleBuild }, BuildAssetBundleOptions.None, BuildTarget.WebGL);}}[MenuItem("AssetBundle/BuildWebGL")]public static void BundleAssetsBundle_Webgl() {Debug.Log("BundleAssetsBundle WebGL");BuildAllAssetBundles();}private static void BuildAssetsBundle(BuildTarget target) {//string packagePath = Application.streamingAssetsPath;//if (packagePath.Length <= 0 && !Directory.Exists(packagePath))//{//    return;//}//BuildPipeline.BuildAssetBundles(packagePath, BuildAssetBundleOptions.UncompressedAssetBundle, target);}//Asset/BundleAsset/Prefab/Com/a.bundle  Prefab/Com/apublic static string RemovePrefix(string inputString) {inputString = inputString.Replace("\\", "/");string prefix = "Assets/BundleAsset/";string result = inputString.Replace(prefix, "");return result.Replace(".bundle", "");}static void BuildAllAssetBundles() {string prefabsFolderPath = "Assets/BundleAsset/Prefab";if (!Directory.Exists(prefabsFolderPath)) {Debug.LogError($"Folder {prefabsFolderPath} does not exist!");return;}//AB包路径是ABundlesstring rootPath = Application.dataPath.ToLower().Replace("assets", "") + "ABundles/webgl";if (!Directory.Exists(rootPath)) {Debug.LogError($"Folder {rootPath} does not exist!");return;}string[] prefabGUIDs = AssetDatabase.FindAssets("t:Prefab", new[] { prefabsFolderPath });foreach (var prefabGUID in prefabGUIDs) {string prefabPath = AssetDatabase.GUIDToAssetPath(prefabGUID);GameObject prefab = AssetDatabase.LoadAssetAtPath<GameObject>(prefabPath);if (prefab == null) {continue;}var assetPath = AssetDatabase.GetAssetPath(prefab);var dependencies = GetAllDependencies(assetPath).ToArray();var withoutEx = Path.GetFileNameWithoutExtension(prefabPath);AssetBundleBuild assetBundleBuild = new AssetBundleBuild();assetBundleBuild.assetBundleName = RemovePrefix(withoutEx).ToLower() + ".bundle";assetBundleBuild.assetNames = dependencies;var directName = Path.GetDirectoryName(assetPath);var outPackagePath = $"{rootPath}/{RemovePrefix(directName).ToLower()}";Debug.Log($"prefabPath {prefabPath}");if (!Directory.Exists(outPackagePath)) {Directory.CreateDirectory(outPackagePath);}BuildPipeline.BuildAssetBundles(outPackagePath, new AssetBundleBuild[] { assetBundleBuild }, BuildAssetBundleOptions.None, BuildTarget.WebGL);}Debug.Log("BuildAssetBundles ok");}public static List<string> GetAllDependencies(string assetPath) {var list = new List<string>();var dependencies = AssetDatabase.GetDependencies(assetPath, false);foreach (var dependency in dependencies) {if (Path.GetExtension(dependency) == ".cs" || Path.GetExtension(dependency) == ".meta" || Path.GetExtension(dependency) == ".DS_Store") {continue;}list.Add(dependency);}list.Add(assetPath);return list;}}

3.需要打包的场景添加到打包配置：

4.unity编辑器生成菜单：

5.场景加载AB包管理器：

using Cysharp.Threading.Tasks;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Runtime.InteropServices;
using UnityEngine;
using UnityEngine.SceneManagement;
using System.IO;
using UnityEngine.Networking;
using GLTFast;
using LitJson;
using System.Web;public class SceneLoader : MonoBehaviour {public int TemplateId;public bool useBundle;public bool isDeBug;public bool isShowCase;public bool isMobileTest;[Header("天空盒材质球")]public UnityEngine.Material skyboxMaterial;bool sceneIsLoaded = false;[DllImport("__Internal")]private static extern string GetUA();public virtual void Awake() {#if !UNITY_EDITOR && UNITY_WEBGLstring a = GetUA();if (a == "1"){//PC端Debug.Log("当前运行环境在PC端");PlayerData.Instance.isRunningPC = true;}if (a == "2"){//移动端Debug.Log("当前运行环境在移动端");PlayerData.Instance.isRunningPC = false;}
#endif#if UNITY_EDITORAppConst.UseAssetBundle = useBundle;#endifAppConst.useShowBundlePath = isShowCase;DontDestroyOnLoad(gameObject);EventManager.Instance.AddListener(EventName.LoadSceneAction, OnSceneLoad);EventManager.Instance.AddListener(EventName.OnSceneCfgLoadEnd, RemoveUnuse);}public virtual void Start() {var fps = transform.Find("FPS");if (fps) {fps.gameObject.SetActive(isDeBug);}if (isMobileTest) LoadNetCofig();}void LoadNetCofig() {var configPath = Application.dataPath;#if UNITY_EDITORvar filepath = Path.Combine(Application.dataPath.Replace("Assets", ""), "config.txt");
#elsevar filepath = Path.Combine(Application.dataPath, "config.txt");
#endifDebug.Log("configPath" + filepath);filepath = filepath.Replace("\\", "/");StartCoroutine(LoadFileSetNetwork(filepath));}IEnumerator LoadFileSetNetwork(string filepath) {UnityWebRequest www = UnityWebRequest.Get(filepath);yield return www.SendWebRequest();if (www.result == UnityWebRequest.Result.ConnectionError || www.result == UnityWebRequest.Result.ProtocolError) {Debug.LogError(www.error);}else {string json = www.downloadHandler.text;var data = LitJson.JsonMapper.ToObject(json);if ((string)data["AssetBundleIP"] != string.Empty) {Host.AssetBundleIP = (string)data["AssetBundleIP"];}Host.gameServer = (string)data["local"];Host.ApiHost = (string)data["ApiHost"];Host.remote = (string)data["remote"];Debug.Log("url config:" + json);StartCoroutine(tempLoad());}}public IEnumerator tempLoad() {Debug.Log("OnBaelogin" + TemplateId);var SceneName = TemplateId.ToString();
#if UNITY_EDITORif (AppConst.UseAssetBundle) {yield return AssetBundleManager.Instance.LoadSceneSync(SceneName);}else {yield return SceneManager.LoadSceneAsync(SceneName);}
#elseyield return AssetBundleManager.Instance.LoadSceneSync(SceneName);
#endifEventManager.Instance.TriggerEvent(EventName.OnSceneLoaded);UIManager.Instance.PushPanel(UIPanelType.MAIN_PANEL); //这里有个坑， 如果把界面放在场景加载之前添加，会出现各种错误乱象UIManager.Instance.PushPanel(UIPanelType.HUD_PANEL);Debug.Log("DownLoadScenConfig");if (HttpHelper.Instance != null) {HttpHelper.Instance.GetDefaultSpaceImg();HttpHelper.Instance.DownLoadScenConfig();}}private void RemoveUnuse(object sender, EventArgs e) {RemoveSceneUnUseDefault();ResetSkyBox();}public void ResetSkyBox() {JsonData sceneJson = JsonMapper.ToObject(SceneModel.Instance.sceneJsonInitData);if (sceneJson["skyBox"] != null) {string imgdata = sceneJson["skyBox"]["body"].ToString();string decodedString = HttpUtility.UrlDecode(JsonMapper.ToObject(imgdata)["imgDatas"].ToString());StartCoroutine(LoadTexturesAndGenerateCubemap(JsonMapper.ToObject<List<skyImgData>>(decodedString)));}}private IEnumerator LoadTexturesAndGenerateCubemap(List<skyImgData> skyImgDataList) {Texture2D[] textures = new Texture2D[skyImgDataList.Count];Cubemap cubemap;for (int i = 0; i < skyImgDataList.Count; i++) {using (UnityWebRequest www = UnityWebRequestTexture.GetTexture(skyImgDataList[i].url)) {yield return www.SendWebRequest();if (www.result == UnityWebRequest.Result.Success) {Texture2D texture = DownloadHandlerTexture.GetContent(www);textures[i] = texture;}else {Debug.LogError("Failed to load image: " + www.error);yield break;}}}Material material = new Material(skyboxMaterial);material.SetTexture("_FrontTex", textures[0]);material.SetTexture("_BackTex", textures[1]);material.SetTexture("_LeftTex", textures[2]);material.SetTexture("_RightTex", textures[3]);material.SetTexture("_UpTex", textures[4]);material.SetTexture("_DownTex", textures[5]);RenderSettings.skybox = material;}/// <summary>/// 移除场景默认设置的那些被删除的板/// </summary>public void RemoveSceneUnUseDefault() {var comVOs = SceneModel.Instance.rootCfg.comCfg.comVOs;var scene = SceneManager.GetActiveScene();GameObject[] roots = scene.GetRootGameObjects();foreach (GameObject root in roots) {var loaders = root.GetComponentsInChildren<ComLoader>();foreach (var loader in loaders) {if (comVOs.TryGetValue(loader.instanceName, out _) == false) {StartCoroutine(waitSeconds(loader.gameObject));}}}}IEnumerator waitSeconds(GameObject go) {yield return new WaitForEndOfFrame();GameObject.Destroy(go);}IEnumerator coLoadSceneAsync() {if (PlayerData.Instance.isRunningPC == false) {yield return new WaitForSeconds(1f);}#if UNITY_EDITORif (SceneModel.Instance.useGlb == false) {PlayerData.Instance.TemplateId = TemplateId;}
#endifvar SceneName = "";if (SceneModel.Instance.useGlb == true) {SceneName = "1000";}else {if (PlayerData.Instance.isRunningPC) {SceneName = PlayerData.Instance.TemplateId.ToString();}else {SceneName = PlayerData.Instance.TemplateId.ToString() + "_mobile";}}Debug.Log("SceneName TemplateId:" + SceneName);
#if UNITY_EDITORif (AppConst.UseAssetBundle) {yield return AssetBundleManager.Instance.LoadSceneSync(SceneName);}else {yield return SceneManager.LoadSceneAsync(SceneName);}#elseyield return AssetBundleManager.Instance.LoadSceneSync(SceneName);
#endif}/// <summary>/// 发布态场景加载完成/// </summary>/// <param name="arg0"></param>/// <param name="arg1"></param>private void OnPublishModeSceneLoadSuccess(Scene arg0, LoadSceneMode arg1) {UIManager.Instance.PushPanel(UIPanelType.EDITOR_MODE_PANEL);UIManager.Instance.PushPanel(UIPanelType.HUD_PANEL);EventManager.Instance.TriggerEvent(EventName.OnSceneLoaded);HttpHelper.Instance.GetDefaultSpaceImg();SceneModel.Instance.setDefaultSceneConfig();if (PlayerController.Instance.gameObject.GetComponent<RoleInfoUICtr>()) {PlayerController.Instance.gameObject.GetComponent<RoleInfoUICtr>().publicModeForName();PlayerController.Instance.gameObject.GetComponent<RoleInfoUICtr>().isShowOwnerObj(true);}if (SceneModel.Instance.useGlb) {EventManager.Instance.TriggerEvent(EventName.onGlbSceneLoad, new GlbLoadEvenArg { url = SceneModel.Instance.glbPath });}}public void OnSceneLoad(object sender, EventArgs e) {if (sceneIsLoaded == true) {return;}sceneIsLoaded = true;var arg = e as SceneLoadActionArgs;Debug.Log("OnSceneLoad:" + arg.state);if (arg.state == AppConst.PublicMode) //创建态{SceneManager.sceneLoaded += OnPublishModeSceneLoadSuccess;}else { //浏览态SceneManager.sceneLoaded += OnViewSceneLoadOk;}StartCoroutine(coLoadSceneAsync());}/// <summary>/// 浏览态场景加载完成/// </summary>/// <param name="arg0"></param>/// <param name="arg1"></param>private void OnViewSceneLoadOk(Scene arg0, LoadSceneMode arg1) {EventManager.Instance.TriggerEvent(EventName.OnSceneLoaded);if (PlayerData.Instance.isRunningPC == true) {UIManager.Instance.PushPanel(UIPanelType.HUD_PANEL);}//ToastPanel.Show("OnViewSceneLoadOk");//AlertPanel.Show("OnViewSceneLoadOk", null);//Debug.Log("DownLoadScenConfig");//if (HttpHelper.Instance != null)//{//    HttpHelper.Instance.GetDefaultSpaceImg();//    //HttpHelper.Instance.DownLoadScenConfig(); //挪到登陆的时候请求场景数据//}if (SceneModel.Instance.useGlb) {EventManager.Instance.TriggerEvent(EventName.onGlbSceneLoad, new GlbLoadEvenArg { url = SceneModel.Instance.glbPath });}if (PlayerData.Instance.isRunningPC) {SceneModel.Instance.ImplementComLoder();UIManager.Instance.PushPanel(UIPanelType.MAIN_PANEL);}else {if (SceneModel.Instance.useGlb) {EventManager.Instance.AddListener(EventName.onGlbSceneLoadOK, (s, e) => {StartCoroutine(waitSeconds(1, () => {UIManager.Instance.PushPanel(UIPanelType.MAIN_PANEL);}));});StartCoroutine(waitSeconds(1, () => {if (SceneModel.Instance.useGlb) {EventManager.Instance.TriggerEvent(EventName.onGlbSceneLoad, new GlbLoadEvenArg { url = SceneModel.Instance.glbPath });}}));}else {StartCoroutine(waitSeconds(1, () => {UIManager.Instance.PushPanel(UIPanelType.MAIN_PANEL);}));}}}private IEnumerator waitSeconds(float scecond, Action call) {yield return new WaitForSeconds(scecond);call();}public virtual void Onlogin() {}}