67 lines
1.9 KiB
C#
67 lines
1.9 KiB
C#
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namespace YooAsset
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{
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public class DestroyOperation : AsyncOperationBase
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{
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private enum ESteps
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{
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None,
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UnloadAllAssets,
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DestroyPackage,
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Done,
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}
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private readonly ResourcePackage _resourcePackage;
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private UnloadAllAssetsOperation _unloadAllAssetsOp;
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private ESteps _steps = ESteps.None;
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public DestroyOperation(ResourcePackage resourcePackage)
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{
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_resourcePackage = resourcePackage;
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}
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internal override void InternalOnStart()
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{
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_steps = ESteps.UnloadAllAssets;
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}
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internal override void InternalOnUpdate()
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{
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if (_steps == ESteps.None || _steps == ESteps.Done)
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return;
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if (_steps == ESteps.UnloadAllAssets)
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{
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if (_unloadAllAssetsOp == null)
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_unloadAllAssetsOp = _resourcePackage.UnloadAllAssetsAsync();
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if (_unloadAllAssetsOp.IsDone == false)
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return;
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if (_unloadAllAssetsOp.Status == EOperationStatus.Succeed)
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{
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_steps = ESteps.DestroyPackage;
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}
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else
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{
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_steps = ESteps.Done;
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Status = EOperationStatus.Failed;
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Error = _unloadAllAssetsOp.Error;
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}
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}
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if (_steps == ESteps.DestroyPackage)
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{
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// 销毁包裹
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_resourcePackage.DestroyPackage();
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// 最后清理该包裹的异步任务
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// 注意：对于有线程操作的异步任务，需要保证线程安全释放。
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OperationSystem.ClearPackageOperation(_resourcePackage.PackageName);
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_steps = ESteps.Done;
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Status = EOperationStatus.Succeed;
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}
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}
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}
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}
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