Unity Asset Bundle 2/3/4/5 October 2019 最新版 含加载方法

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using System.Collections; using System.Collections.Generic; using UnityEngine; using System.IO; using UnityEngine.Networking;   public class DownLoad : MonoBehaviour {     IEnumerator Start()     {         //资源包路径         string path1 = "AssetBundles/cubewall.unity3d";         //共享依赖资源包路径         string path2 = "AssetBundles/share.unity3d";           //第一种加载AB的方式 ,从内存中加载 LoadFromMemory           #region           //方法一：异步加载         //加载资源         AssetBundleCreateRequest request = AssetBundle.LoadFromMemoryAsync(File.ReadAllBytes(path1));         yield return request;         //加载共同依赖资源，如贴图、材质         AssetBundleCreateRequest request2 = AssetBundle.LoadFromMemoryAsync(File.ReadAllBytes(path2));         yield return request2;         AssetBundle ab = request.assetBundle;         AssetBundle ab2 = request2.assetBundle;           //使用里面的资源         GameObject wallPrefab1 = (GameObject) ab.LoadAsset("CubeWall");         Instantiate(wallPrefab1);           //方法二：同步加载(无需用协程)         //加载资源         AssetBundle ab3 = AssetBundle.LoadFromMemory(File.ReadAllBytes(path1));         //加载共同依赖资源，如贴图、材质         AssetBundle ab4 = AssetBundle.LoadFromMemory(File.ReadAllBytes(path2));           //使用里面的资源         GameObject wallPrefab2 = (GameObject) ab.LoadAsset("CubeWall");         Instantiate(wallPrefab2);           #endregion             //第二种加载AB的方式 ，从本地加载 LoadFromFile(无需用协程)           #region           AssetBundle ab5 = AssetBundle.LoadFromFile(path1);         AssetBundle ab6 = AssetBundle.LoadFromFile(path2);           GameObject wallPrefab3 = (GameObject) ab5.LoadAsset("CubeWall");         Instantiate(wallPrefab3);           #endregion           //第三种加载AB的方式 ,从本地或服务器加载 WWW（将被弃用）           #region           //是否准备好         while (Caching.ready == false)         {             yield return null;         }         //从本地加载         //WWW www = WWW.LoadFromCacheOrDownload(@"file:/E:AssetBundleProject\AssetBundleProject\AssetBundles", 1);         //从服务器加载         WWW www = WWW.LoadFromCacheOrDownload(@"http://localhost/AssetBundles/cubewall.unity3d", 1);         yield return www;         //是否报错         if (string.IsNullOrEmpty(www.error) == false)         {             Debug.Log(www.error);             yield break;         }         AssetBundle ab7 = www.assetBundle;           //使用里面的资源         GameObject wallPrefab4 = (GameObject) ab7.LoadAsset("CubeWall");         Instantiate(wallPrefab4);           #endregion           //第四种加载AB方式 从服务器端下载 UnityWebRequest（新版Unity使用）           #region           //服务器路径 localhost为IP         string uri = @"http://localhost/AssetBundles/cubewall.unity3d";         UnityWebRequest request3 = UnityWebRequest.GetAssetBundle(uri);         yield return request3.Send();           //AssetBundle ab8 = ((DownloadHandlerAssetBundle)request3.downloadHandler).assetBundle;         AssetBundle ab8 = DownloadHandlerAssetBundle.GetContent(request3);           //使用里面的资源         GameObject wallPrefab5 = (GameObject) ab8.LoadAsset("CubeWall");         Instantiate(wallPrefab5);           //加载cubewall.unity3d资源包所依赖的资源包         AssetBundle manifestAB = AssetBundle.LoadFromFile("AssetBundles/AssetBundles");         AssetBundleManifest manifest = (AssetBundleManifest) manifestAB.LoadAsset("AssetBundleManifest");           //foreach(string name in manifest.GetAllAssetBundles())         //{         //    print(name);         //}           //cubewall.unity3d资源包所依赖的资源包的名字         string[] strs = manifest.GetAllDependencies("cubewall.unity3d");         foreach (string name in strs)         {             AssetBundle.LoadFromFile("AssetBundles/" + name);         }           #endregion     } }