protected override async Task AsyncRun()
{
var assetBundleHandle = new AssetBundleHandle(Url);
try
{
await AsyncLoadDependencies(assetBundleHandle, Url);
Progress = 0.5f;
string loadUrl = GetLoadUrl(Url);
var request = AssetBundle.LoadFromFileAsync(loadUrl);
await request;
var bundle = request.assetBundle;
if (null == bundle)
{
throw new ApplicationException(string.Format(
"Failed to load AssetBundle:{0}",
loadUrl));
}
Progress = 1f;
assetBundleHandle.Bundle = bundle;
AssetSystem.Instance.AddAsset(assetBundleHandle);
Finish(assetBundleHandle);
}
catch (Exception e)
{
Finish(null);
assetBundleHandle.Dispose();
throw new ApplicationException("Error when loading AssetBundle:" + Url, e);
}
}
static async Task AsyncLoadDependencies(AssetBundleHandle handle, string abUrl)
{
var manifest = Manifest;
string[] deps = manifest.GetAllDependencies(abUrl);
var depLoadTasks = new List <Task <AssetBundleHandle> >();
for (int i = 0; i < deps.Length; ++i)
{
string d = deps[i];
var depHandle = AssetSystem.Instance.FindAsset(d);
if (null != depHandle)
{
handle.AddDependency(depHandle);
}
else
{
depLoadTasks.Add(AsyncLoad(d));
}
}
while (depLoadTasks.Count > 0)
{
var task = await Task.WhenAny(depLoadTasks);
handle.AddDependency(task.Result);
depLoadTasks.Remove(task);
}
}
public static AssetBundleHandle Load(string path)
{
path = path.ToLower();
using (var timer = LoadTimer.Start <AssetBundleLoader>(path))
{
var handle = AssetSystem.Instance.FindAsset <AssetBundleHandle>(path);
if (null == handle)
{
handle = new AssetBundleHandle(path);
try
{
LoadDependencies(handle, path);
string loadUrl = GetLoadUrl(path);
var bundle = AssetBundle.LoadFromFile(loadUrl);
if (null == bundle)
{
throw new ApplicationException(string.Format(
"Failed to load AssetBundle:{0}",
path));
}
handle.Bundle = bundle;
AssetSystem.Instance.AddAsset(handle);
}
catch (Exception e)
{
handle.Dispose();
throw new ApplicationException("Error when loading " + path, e);
}
}
return(handle);
}
}
static void LoadDependencies(AssetBundleHandle handle, string abUrl)
{
var manifest = Manifest;
string[] deps = manifest.GetAllDependencies(abUrl);
for (int i = 0; i < deps.Length; ++i)
{
string d = deps[i];
var depHandle = AssetSystem.Instance.FindAsset(d);
if (null == depHandle)
{
depHandle = Load(d);
}
handle.AddDependency(depHandle);
}
}