99 lines
3.1 KiB
C#
99 lines
3.1 KiB
C#
using System;
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using System.IO;
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namespace YooAsset
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{
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internal sealed class LoadBuildinCatalogFileOperation : 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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TryLoadFileData,
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RequestFileData,
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LoadCatalog,
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Done,
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}
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private readonly DefaultBuildinFileSystem _fileSystem;
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private UnityWebDataRequestOperation _webDataRequestOp;
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private byte[] _fileData;
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private ESteps _steps = ESteps.None;
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/// <summary>
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/// 内置资源目录
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/// </summary>
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public DefaultBuildinFileCatalog Catalog;
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internal LoadBuildinCatalogFileOperation(DefaultBuildinFileSystem fileSystem)
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{
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_fileSystem = fileSystem;
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}
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internal override void InternalStart()
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{
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_steps = ESteps.TryLoadFileData;
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}
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internal override void InternalUpdate()
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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.TryLoadFileData)
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{
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string filePath = _fileSystem.GetCatalogBinaryFileLoadPath();
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if (File.Exists(filePath))
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{
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_fileData = File.ReadAllBytes(filePath);
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_steps = ESteps.LoadCatalog;
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}
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else
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{
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_steps = ESteps.RequestFileData;
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}
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}
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if (_steps == ESteps.RequestFileData)
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{
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if (_webDataRequestOp == null)
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{
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string filePath = _fileSystem.GetCatalogBinaryFileLoadPath();
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string url = DownloadSystemHelper.ConvertToWWWPath(filePath);
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_webDataRequestOp = new UnityWebDataRequestOperation(url, 60);
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_webDataRequestOp.StartOperation();
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AddChildOperation(_webDataRequestOp);
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}
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_webDataRequestOp.UpdateOperation();
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if (_webDataRequestOp.IsDone == false)
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return;
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if (_webDataRequestOp.Status == EOperationStatus.Succeed)
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{
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_fileData = _webDataRequestOp.Result;
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_steps = ESteps.LoadCatalog;
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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 = _webDataRequestOp.Error;
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}
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}
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if (_steps == ESteps.LoadCatalog)
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{
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try
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{
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Catalog = CatalogTools.DeserializeFromBinary(_fileData);
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_steps = ESteps.Done;
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Status = EOperationStatus.Succeed;
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}
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catch (Exception e)
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{
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_steps = ESteps.Done;
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Status = EOperationStatus.Failed;
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Error = $"Failed to load catalog file : {e.Message}";
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}
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}
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}
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}
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} |