private IEnumerator loadAsync <T>(string path, Action <T> callback) where T : Object
{
CacheObject co;
if (callback != null && dicCacheObject.TryGetValue(path, out co) && co != null)
{
callback(co.obj as T);
co.time = Time.time;
yield break;
}
isLoading = true;
path = FilePathTools.normalizePath(path);
Debug.Log("===AssetBundleLoader.loadAsync:" + path);
string assetBundleName = FilePathTools.getAssetBundleNameWithPath(path);
bool isUseAssetBundle = GameSetting.isUseAssetBundle;
if (!isUseAssetBundle)
{
#if UNITY_EDITOR
path = FilePathTools.getRelativePath(path);
Object Obj = UnityEditor.AssetDatabase.LoadAssetAtPath(path, typeof(T));
if (Obj == null)
{
Debug.LogError("Asset not found at path:" + path);
}
callback((T)Obj);
#endif
}
else
{
//打的ab包都资源名称和文件名都是小写的
AssetBundleRequest assetRequest;
AssetBundleCreateRequest createRequest;
//1加载Manifest文件
if (manifest == null)
{
string manifestPath = FilePathTools.manifestPath;
Debug.Log("start load Manifest:" + manifestPath);
createRequest = AssetBundle.LoadFromFileAsync(manifestPath);
yield return(createRequest);
if (createRequest.isDone)
{
AssetBundle manifestAB = createRequest.assetBundle;
yield return(assetRequest = manifestAB.LoadAssetAsync <AssetBundleManifest>("AssetBundleManifest"));
manifest = assetRequest.asset as AssetBundleManifest;
manifestAB.Unload(false);
}
else
{
Debug.Log("Manifest加载出错");
}
}
//2获取文件依赖列表
string[] dependencies = manifest.GetAllDependencies(assetBundleName);
//3加载依赖资源
Dictionary <string, AssetBundle> dependencyAssetBundles = new Dictionary <string, AssetBundle>();
//Debug.Log("---开始加载依赖资源:" + dependencies.Length.ToString());
foreach (string fileName in dependencies)
{
string dependencyPath = FilePathTools.root + "/" + fileName;
if (!GameMainManager.instance.preloader.Contains(dependencyPath))
{
Debug.Log("开始加载依赖资源:" + dependencyPath);
createRequest = AssetBundle.LoadFromFileAsync(dependencyPath);
yield return(createRequest);
if (createRequest.isDone)
{
dependencyAssetBundles.Add(dependencyPath, createRequest.assetBundle);
}
else
{
Debug.Log("加载依赖资源出错");
}
}
}
//4加载目标资源
Object obj = null;
Debug.Log("---开始加载目标资源:" + path);
createRequest = AssetBundle.LoadFromFileAsync(path);
yield return(createRequest);
List <AssetBundle> abList = new List <AssetBundle>();
if (createRequest.isDone)
{
AssetBundle assetBundle = createRequest.assetBundle;
yield return(assetRequest = assetBundle.LoadAssetAsync(Path.GetFileNameWithoutExtension(path), typeof(T)));
obj = assetRequest.asset;
AddCache(path, obj);
//5释放目标资源
//Debug.Log("---释放目标资源:" + path);
abList.Add(assetBundle);
}
else
{
Debug.Log("加载目标资源出错 ");
}
if (dependencyAssetBundles != null)
{
//6释放依赖资源
foreach (string key in dependencyAssetBundles.Keys)
{
//Debug.Log("---释放依赖资源:" + key);
AssetBundle dependencyAB = dependencyAssetBundles[key];
abList.Add(dependencyAB);
}
}
callback((T)obj);
StartCoroutine(UnloadAssetbundle(abList));
}
//Debug.Log("---end loadAsync:AssetBundleLoader.loadAsync" + path);
yield return(null);
isLoading = false;
}
public T Load <T>(string path) where T : Object
{
CacheObject co;
if (dicCacheObject.TryGetValue(path, out co) && co != null)
{
co.time = Time.time;
return((T)co.obj);
}
path = FilePathTools.normalizePath(path);
Debug.Log("===AssetBundleLoader.Load:" + path);
if (!GameSetting.isUseAssetBundle)
{
#if UNITY_EDITOR
path = FilePathTools.getRelativePath(path);
Object Obj = UnityEditor.AssetDatabase.LoadAssetAtPath(path, typeof(T));
if (Obj == null)
{
Debug.LogError("Asset not found at path:" + path);
}
return((T)Obj);
#endif
}
else
{
//打的ab包都资源名称和文件名都是小写的
//1加载Manifest文件
if (manifest == null)
{
string manifestPath = FilePathTools.manifestPath;
Debug.Log("start load Manifest:" + manifestPath);
AssetBundle manifestAB = AssetBundle.LoadFromFile(manifestPath);
manifest = manifestAB.LoadAsset <AssetBundleManifest>("AssetBundleManifest");
manifestAB.Unload(false);
}
//2获取文件依赖列表
string assetBundleName = FilePathTools.getAssetBundleNameWithPath(path);
string[] dependencies = manifest.GetAllDependencies(assetBundleName);
//3加载依赖资源
Dictionary <string, AssetBundle> dependencyAssetBundles = new Dictionary <string, AssetBundle>();
//Debug.Log("---开始加载依赖资源:" + dependencies.Length.ToString());
foreach (string fileName in dependencies)
{
string dependencyPath = FilePathTools.root + "/" + fileName;
if (!GameMainManager.instance.preloader.Contains(dependencyPath))
{
Debug.Log("开始加载依赖资源:" + dependencyPath);
dependencyAssetBundles.Add(dependencyPath, AssetBundle.LoadFromFile(dependencyPath));
}
}
//4加载目标资源
Object obj = null;
Debug.Log("---开始加载目标资源:" + path);
AssetBundle assetBundle = AssetBundle.LoadFromFile(path);
obj = assetBundle.LoadAsset <T>(Path.GetFileNameWithoutExtension(path));;
AddCache(path, obj);
//5释放目标资源
//Debug.Log("---释放目标资源:" + path);
List <AssetBundle> abList = new List <AssetBundle>();
abList.Add(assetBundle);
if (dependencyAssetBundles != null)
{
//6释放依赖资源
foreach (string key in dependencyAssetBundles.Keys)
{
//Debug.Log("---释放依赖资源:" + key);
AssetBundle dependencyAB = dependencyAssetBundles[key];
abList.Add(dependencyAB);
}
}
StartCoroutine(UnloadAssetbundle(abList));
return((T)obj);
}
return(null);
}