YooAsset/Assets/YooAsset/Runtime/PackageSystem/Operations/Internal/LoadBuildinManifestOperatio...

92 lines
2.2 KiB
C#

namespace YooAsset
{
internal class LoadBuildinManifestOperation : AsyncOperationBase
{
private enum ESteps
{
None,
LoadBuildinManifest,
CheckDeserializeManifest,
Done,
}
private readonly string _buildinPackageName;
private readonly string _buildinPackageVersion;
private UnityWebDataRequester _downloader;
private DeserializeManifestOperation _deserializer;
private ESteps _steps = ESteps.None;
/// <summary>
/// 加载的清单实例
/// </summary>
public PackageManifest Manifest { private set; get; }
public LoadBuildinManifestOperation(string buildinPackageName, string buildinPackageVersion)
{
_buildinPackageName = buildinPackageName;
_buildinPackageVersion = buildinPackageVersion;
}
internal override void Start()
{
_steps = ESteps.LoadBuildinManifest;
}
internal override void Update()
{
if (_steps == ESteps.None || _steps == ESteps.Done)
return;
if (_steps == ESteps.LoadBuildinManifest)
{
if (_downloader == null)
{
string fileName = YooAssetSettingsData.GetManifestBinaryFileName(_buildinPackageName, _buildinPackageVersion);
string filePath = PersistentTools.MakeStreamingLoadPath(fileName);
string url = PersistentTools.ConvertToWWWPath(filePath);
_downloader = new UnityWebDataRequester();
_downloader.SendRequest(url);
}
if (_downloader.IsDone() == false)
return;
if (_downloader.HasError())
{
_steps = ESteps.Done;
Status = EOperationStatus.Failed;
Error = _downloader.GetError();
}
else
{
byte[] bytesData = _downloader.GetData();
_deserializer = new DeserializeManifestOperation(bytesData);
OperationSystem.StartOperation(_deserializer);
_steps = ESteps.CheckDeserializeManifest;
}
_downloader.Dispose();
}
if (_steps == ESteps.CheckDeserializeManifest)
{
Progress = _deserializer.Progress;
if (_deserializer.IsDone == false)
return;
if (_deserializer.Status == EOperationStatus.Succeed)
{
Manifest = _deserializer.Manifest;
_steps = ESteps.Done;
Status = EOperationStatus.Succeed;
}
else
{
_steps = ESteps.Done;
Status = EOperationStatus.Failed;
Error = _deserializer.Error;
}
}
}
}
}