/// <summary>
/// 加载依赖项
/// </summary>
/// <param name="assetBundleName">Asset bundle name.</param>
private void LoadDependencies(string scope, string assetBundleName, string variants)
{
AssetBundleManifest manifest = this.GetPersistentManifest();
string variantsName = this.GetVariants(assetBundleName, variants);
string[] deps = manifest.GetAllDependencies(variantsName);
if (deps.Length == 0)
{
return;
}
if (variants != "")
{
for (int i = 0; i < deps.Length; i++)
{
string itemVariantsName = this.GetVariants(deps[i], variants);
deps[i] = itemVariantsName;
}
}
// Record and load all dependencies.
dependencies.Add(variantsName, deps);
for (int i = 0; i < deps.Length; i++)
{
// 这个abname已经是变体了
string itemVariantsName = deps[i];
// 加载依赖时，如果队列不足，要先等待
if (dicLoadings.Count >= this._maxSize)
{
// 需要等待
LoadTask task = new LoadTask(scope, itemVariantsName);
//LoadTask task = new LoadTask();
//task.scope = scope;
//task.name = itemVariantsName;
downList.Add(task);
}
else
{
// 这个之后要获取
this.LoadAssetBundleInternal(itemVariantsName, "");
}
}
}
/// <summary>
/// 添加加载任务
/// TODO 只能在外部调用时，自己初始化AssetBundleLoadAssetOperationBatch来控制，这里可以改掉
/// </summary>
/// <param name="abName">Ab name.</param>
/// <param name="callBack">Call back.</param>
public void MultiLoadAssetBundle(string scopeName, string abName, Action <string> callBack, string variants = "")
{
if (SimulateAssetBundleInEditor == false)
{
LoadStreamManifest();
}
#if UNITY_EDITOR
if (SimulateAssetBundleInEditor)
{
string assetBundleName = this.GetVariants(abName, variants);
string[] assetPaths = AssetDatabase.GetAssetPathsFromAssetBundle(assetBundleName);
if (assetPaths.Length == 0)
{
Debug.LogError("There is no asset with assetBundleName \"" + assetBundleName);
return;
}
Dictionary <string, UnityEngine.Object> dic = new Dictionary <string, UnityEngine.Object>();
for (int j = 0; j < assetPaths.Length; j++)
{
string name = assetPaths[j];
UnityEngine.Object target = AssetDatabase.LoadMainAssetAtPath(name);
string tmp = Path.GetFileNameWithoutExtension(name);
if (dic.ContainsKey(tmp))
{
Debug.LogWarning("注意：存在重名资源 tmp = " + tmp + " name = " + name);
continue;
}
dic.Add(tmp, target);
}
this.simulateAssetDic.Add(abName, dic);
// @TODO: Now we only get the main object from the first asset. Should consider type also.
// UnityEngine.Object target = AssetDatabase.LoadMainAssetAtPath(assetPaths[assetPaths.Length - 1]);
// this.simulateAssetDic.Add(abName, target);
// 存储到字典中
if (dictScope.ContainsKey(scopeName) == false)
{
dictScope.Add(scopeName, new List <string>());
}
dictScope[scopeName].Add(assetBundleName);
if (callBack != null)
{
callBack(assetBundleName);
}
}
else
#endif
{
// 回调函数的基础
Action <string, string, Action <string> > baseCallBack = (string ScopeName, string AssetBundleName, Action <string> CallBack) => {
// 存储到字典中
if (dictScope.ContainsKey(ScopeName) == false)
{
dictScope.Add(ScopeName, new List <string>());
}
dictScope[ScopeName].Add(AssetBundleName);
if (CallBack != null)
{
CallBack(AssetBundleName);
}
};
// 队列没有达上限，可以直接下载
if (this.dicLoadings.Count < this._maxSize)
{
this.LoadAssetAsync(scopeName, abName, variants, callBack, baseCallBack);
}
else
{
// 需要等待
LoadTask task = new LoadTask(scopeName, abName, variants, callBack, baseCallBack);
//LoadTask task = new LoadTask();
//task.scope = scopeName;
//task.name = abName;
//task.variants = variants;
//task.callBack = callBack;
//task.baseCallBack = baseCallBack;
downList.Add(task);
}
}
}
void Update()
{
#if UNITY_EDITOR
if (SimulateAssetBundleInEditor)
{
return;
}
#endif
if (dicLoadings == null || dicLoadings.Count == 0)
{
return;
}
// Collect all the finished WWWs.
List <string> keysToRemove = new List <string>();
foreach (var keyValue in this.dicLoadings)
{
AssetBundleCreateRequest request = keyValue.Value;
// isDone也有可能在系统错误的时候返回
if (request.isDone)
{
AssetBundle bundle = request.assetBundle;
if (bundle == null)
{
Debug.LogError(string.Format("Failed load bundle {0} : bundle is null", keyValue.Key));
keysToRemove.Add(keyValue.Key);
if (this.abRefCntLoadingDic.ContainsKey(keyValue.Key))
{
this.abRefCntLoadingDic[keyValue.Key]--;
if (this.abRefCntLoadingDic[keyValue.Key] == 0)
{
this.abRefCntLoadingDic.Remove(keyValue.Key);
}
}
continue;
}
int rCount = 1;
if (this.abRefCntLoadingDic.ContainsKey(keyValue.Key))
{
rCount = this.abRefCntLoadingDic[keyValue.Key];
this.abRefCntLoadingDic.Remove(keyValue.Key);
}
AssetBundleRef abr = new AssetBundleRef(keyValue.Key, bundle);
abr.m_ReferencedCount = rCount;
dictAssetBundleRefs.Add(keyValue.Key, abr);
keysToRemove.Add(keyValue.Key);
}
}
// Remove the finished WWWs.
foreach (var key in keysToRemove)
{
AssetBundleCreateRequest request = this.dicLoadings[key];
this.dicLoadings.Remove(key);
request = null;
}
// Update all in progress operations
for (int i = 0; i < inProgressOperations.Count;)
{
AssetBundleOperation operation = inProgressOperations[i];
if (!operation.Update())
{
inProgressOperations.RemoveAt(i);
}
else
{
i++;
}
}
// 可以继续加载
while (this.downList.Count > 0 && (this.dicLoadings.Count <= this._maxSize))
{
LoadTask task = this.downList[0];
this.LoadAssetAsync(task.scope, task.name, task.variants, task.callBack, task.baseCallBack);
this.downList.RemoveAt(0);
}
}