/// <summary>
/// 判断是不是固定打包资源
/// </summary>
/// <returns><c>true</c>, if fixed build asset was ised, <c>false</c> otherwise.</returns>
/// <param name="path">相对地址.</param>
static bool isFixedBuildAsset(string path)
{
if (path.IndexOf(FilePathTools.getRelativePath(buildRootPath)) == -1)
{
return(false);
}
return(true);
}
/// <summary>
/// 通过相对地址获取assetbundle的名字
/// </summary>
/// <returns>The asset bundle name with path.</returns>
/// <param name="path">相对地址.</param>
static string getAssetBundleNameWithPath(string path)
{
string p = Path.GetDirectoryName(path) + "/" + Path.GetFileNameWithoutExtension(path);
//判断是依赖资源还是固定资源
if (!isFixedBuildAsset(p))
{
p = FilePathTools.replaceFirst(p, "Assets", "Dependencie");
//p = p.Replace ("Assets","Dependencie");
}
else
{
p = FilePathTools.replaceFirst(p, FilePathTools.getRelativePath(buildRootPath) + "/", "");
//p = p.Replace (buildRoot + "/","");
}
return(p);
}
static AssetBundleBuild[] GetBuildFileListNew(string buildRoot)
{
//获取所有固定打包的文件
FileInfo[] files = FilePathTools.getFiles(buildRoot);
//List<string> fixedPaths = new List<string>();
List <AssetBundleBuild> buildMap = new List <AssetBundleBuild>();
for (int i = 0; i < files.Length; i++)
{
//获取相对于asset目录的相对路径
string path = FilePathTools.getRelativePath(files[i].FullName);
AssetBundleBuild build = new AssetBundleBuild();
build.assetBundleName = getAssetBundleNameWithPath(path);
build.assetNames = new string[1] {
path
};
buildMap.Add(build);
}
Debug.Log("获取所有打包资源完毕:" + buildMap.Count);
return(buildMap.ToArray());
}
/// <summary>
/// 异步加载资源
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="path">资源的相对路径</param>
/// <param name="callback"></param>
/// <returns></returns>
public IEnumerator LoadAssetAsync <T>(string path, Action <T> callback) where T : Object
{
path = FilePathTools.normalizePath(path);
Debug.Log("===AssetBundleLoader.loadAsync:" + path);
string assetBundleName = path;
path = FilePathTools.root + path;//改成绝对路径
#if UNITY_EDITOR
bool isUseAssetBundle = GameSetting.isUseAssetBundle;
if (!isUseAssetBundle)
{
path = FilePathTools.getRelativePath(path); //绝对路径转为相对Assets文件夹的相对路径
Object Obj = UnityEditor.AssetDatabase.LoadAssetAtPath(path, typeof(T));
if (Obj == null)
{
Debug.LogError("Asset not found at path:" + path);
}
callback((T)Obj);
yield break;
}
#endif
//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;
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
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;
//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);
UnloadAssetbundle(abList);
//Debug.Log("---end loadAsync:AssetBundleLoader.loadAsync" + path);
yield return(null);
}
/// <summary>
/// 加载资源
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="path">资源的相对路径</param>
/// <returns></returns>
public T LoadAsset <T>(string path) where T : Object
{
path = FilePathTools.normalizePath(path);
Debug.Log("===AssetBundleLoader.Load:" + path);
string assetBundleName = path;
path = FilePathTools.root + path;//改成绝对路径
#if UNITY_EDITOR
if (!GameSetting.isUseAssetBundle)
{
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
//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[] 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;
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));;
//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);
}
}
UnloadAssetbundle(abList);
return((T)obj);
}
//获取所有需要打包的文件
static AssetBundleBuild[] getBuildFileList(string buildRoot)
{
//获取所有固定打包的文件
FileInfo[] files = FilePathTools.getFiles(buildRoot);
List <string> fixedPaths = new List <string>(); //固定打包资源（必定被打包的资源）
for (int i = 0; i < files.Length; i++)
{
//获取相对于asset目录的相对路径
fixedPaths.Add(FilePathTools.getRelativePath(files[i].FullName));
}
//找出固定打包的文件以及其所有依赖文件 排重
string[] allDependencies = AssetDatabase.GetDependencies(fixedPaths.ToArray(), true); //所有的依赖关系，包括自己并已排重
//寻找固定打包文件和依赖文件的第一层依赖关系并进行依赖计数
Dictionary <string, int> dependenciesCount = new Dictionary <string, int> (); //依赖计数用字典
foreach (string path in allDependencies)
{
if (Path.GetExtension(path) == ".spriteatlas")
{
continue;
}
string[] dependencie = AssetDatabase.GetDependencies(path, false);
foreach (string p in dependencie)
{
if (!dependenciesCount.ContainsKey(p))
{
dependenciesCount.Add(p, 1);
}
else
{
dependenciesCount[p]++;
}
}
}
//将计数器大于1的资源提取出来，剔除掉固定打包的资源
List <AssetBundleBuild> buildMap = new List <AssetBundleBuild> ();
List <string> dependenciesPaths = new List <string> ();//被引用次数大于1的依赖资源 需要进行打包
foreach (string key in dependenciesCount.Keys)
{
int count = dependenciesCount[key];
if (count > 1 && !isFixedBuildAsset(key))
{
dependenciesPaths.Add(key);
}
}
//合并固定打包资源和依赖打包资源
List <string> allBuildPaths = new List <string> (fixedPaths);
allBuildPaths.AddRange(dependenciesPaths);
foreach (string path in allBuildPaths)
{
//去掉脚本资源
if (Path.GetExtension(path) == ".cs")
{
continue;
}
AssetBundleBuild build = new AssetBundleBuild();
build.assetBundleName = getAssetBundleNameWithPath(path);
build.assetNames = new string[1] {
path
};
buildMap.Add(build);
Debug.Log(build.assetBundleName + " | " + build.assetNames[0]);
}
return(buildMap.ToArray());
}
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;
}