/// <summary>
/// 异步加载接口
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="path"></param>
/// <returns></returns>
public int AsyncLoad <T>(string path, Action <bool, T> callback) where T : UnityEngine.Object
{
var task = new LoadTask()
{
Id = this.taskIDCounter++,
ResourcePath = path,
};
//创建任务组
LoadTaskGroup taskGroup = new LoadTaskGroup(new List <LoadTask>()
{
task
}, null,
(map) =>
{
if (map.Keys.Count > 0)
{
//只取第一个返回
foreach (var v in map.Values)
{
callback(true, v as T);
return;
}
}
else
{
callback(false, null);
}
});
AddTaskGroup(taskGroup);
//开始任务
DoNextTask();
return(task.Id);
}
/// <summary>
/// 异步加载 多个
/// </summary>
/// <param name="sources">资源</param>
/// <param name="onLoadComplete">加载结束</param>
/// <param name="onLoadProcess">进度</param>
/// <returns>taskid</returns>
public List <int> AsyncLoad(IList <string> sources,
Action <IDictionary <string, UnityEngine.Object> > onLoadComplete, Action <int, int> onLoadProcess)
{
List <int> idList = new List <int>();
List <LoadTask> tasks = new List <LoadTask>();
foreach (var s in sources)
{
var task = new LoadTask()
{
Id = this.taskIDCounter++,
ResourcePath = s,
};
tasks.Add(task);
idList.Add(task.Id);
}
LoadTaskGroup taskGroup = new LoadTaskGroup(tasks, onLoadProcess, onLoadComplete);
//添加任务组
AddTaskGroup(taskGroup);
//开始任务
DoNextTask();
//
return(idList);
}
/// <summary>
/// 核心功能,所有任务靠这个推进度
/// 执行下个任务
/// </summary>
void DoNextTask()
{
if (isDoing)
{
return;
}
//没有东西的时候 跳出
if (currentTaskGroup == null && this.allTaskList.Count == 0)
{
BDebug.Log("---------无任务组,退出----------");
return;
}
else if (currentTaskGroup == null && this.allTaskList.Count > 0)
{
BDebug.Log("---------开始执行任务组----------");
currentTaskGroup = this.allTaskList[0];
}
LoadTask task = null;
//获取一个任务
for (;;)
{
task = currentTaskGroup.GetTask();
//task为空，或者任务可以执行，跳出
if (task == null || willDoTaskSet.Contains(task.Id))
{
break;
}
}
//当前任务组已经全部完成
if (task == null)
{
BDebug.Log("---------一组加载任务组已完成----------");
currentTaskGroup = null;
this.allTaskList.RemoveAt(0);
DoNextTask();
}
else
{
BDebug.Log("执行任务组中task:" + task.Id + " - " + task.ResourcePath);
isDoing = true;
//执行任务
AsyncLoadAssetBundle(task.ResourcePath, b =>
{
//移除任务
this.willDoTaskSet.Remove(task.Id);
//
var path = "assets/resource/runtime/" + task.ResourcePath.ToLower();
path = GetExistPath(path);
var obj = LoadFormAssetBundle <Object>(path, path);
//任务完成
currentTaskGroup.OnOneTaskComplete(task.Id, task.ResourcePath, obj);
isDoing = false;
//继续执行
DoNextTask();
});
}
}
/// <summary>
/// 加载assetbundle 文件
/// </summary>
private bool AsyncLoadAssetbundleFile()
{
//1.loadABFile,循环添加任务
while (!isCancel && AssetBundleMgrV2.IsCanAddGlobalTask && curLoadIdx < waitingLoadAssetBundleList.Count - 1)
{
curLoadIdx++;
var abi = waitingLoadAssetBundleList[curLoadIdx];
//没有被加载过
var abw = loder.GetAssetBundleFromCache(abi.AssetBundlePath);
if (abw == null)
{
//判断是否在加载中
var loadTask = AssetBundleMgrV2.GetExsitLoadTask(abi.AssetBundlePath);
if (loadTask != null)
{
loadingTaskList.Add(new KeyValuePair <string, LoadTask>(abi.AssetBundlePath, loadTask));
}
else
{
//创建任务
var abPath = loder.FindMultiAddressAsset(abi.AssetBundlePath);
loadTask = new LoadTask(abPath, 0, (ulong)abi.Mix);
//加入Global任务
AssetBundleMgrV2.AddGlobalLoadTask(loadTask);
//添加到loading表
loadingTaskList.Add(new KeyValuePair <string, LoadTask>(abi.AssetBundlePath, loadTask));
//开始加载
loadTask.AysncLoad();
BDebug.Log($"【AsyncLoadTaskGroup】 加 载: {abi.AssetBundlePath}");
}
}
else
{
BDebug.Log($"【AsyncLoadTaskGroup】 无需加载: {abi.AssetBundlePath}");
}
}
//2.loadABFile,检测加载状态
if (loadingTaskList.Count > 0)
{
for (int i = loadingTaskList.Count - 1; i >= 0; i--)
{
var loadingTask = loadingTaskList[i];
var assetbundleFileName = loadingTask.Key;
var loadTask = loadingTask.Value;
//判断是否结束
if (loadTask.IsDone)
{
//添加到返回列表
if (loadTask.AssetBundle != null)
{
loder.AddAssetBundleToCache(assetbundleFileName, loadTask.AssetBundle);
}
else
{
BDebug.LogError("【AsyncLoadTaskGroup】ab资源为空:" + assetbundleFileName);
}
//移除成功任务
loadingTaskList.RemoveAt(i);
//解锁
AssetBundleMgrV2.RemoveGlobalLoadTask(loadTask);
BDebug.Log($"【AsyncLoadTaskGroup】--> 加载完成:{assetbundleFileName} 剩余:{loadingTaskList.Count + waitingLoadAssetBundleList.Count - (curLoadIdx + 1)}/{waitingLoadAssetBundleList.Count}");
}
}
}
//3.任务执行完毕检测
if (!isCancel && loadingTaskList.Count == 0 && curLoadIdx == waitingLoadAssetBundleList.Count - 1)
{
//加载完成,主资源只要保证在 实例化之前加载完毕即可
//加载完则使用
BDebug.Log($"<color=green>【AsyncLoadTaskGroup】所有加载完成:{MainAssetBundleItem.AssetBundlePath}</color>");
return(true);
}
return(false);
}