106 lines
3.1 KiB
C#
106 lines
3.1 KiB
C#
using System.IO;
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using UnityEngine.Networking;
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namespace NBC.Asset
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{
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/// <summary>
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/// 解压文件到指定目录
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/// </summary>
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public class UnpackFileTask : NTask
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{
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private enum Steps
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{
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LoadStreaming,
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Download,
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Done,
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}
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private readonly string _fileName;
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private readonly string _savePath;
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private Steps _steps;
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private NTaskStatus _taskStatus = NTaskStatus.Success;
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private UnityWebRequest _request;
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private DownloadFileTask _downloadFileTask;
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private bool _download;
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public UnpackFileTask(string fileName, bool download = false)
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{
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_fileName = fileName;
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_savePath = Const.GetCachePath(fileName);
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_download = download;
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}
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protected override void OnStart()
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{
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if (File.Exists(_savePath))
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{
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File.Delete(_savePath);
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}
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_steps = Steps.LoadStreaming;
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}
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protected override NTaskStatus OnProcess()
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{
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if (_steps == Steps.LoadStreaming)
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{
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_progress = 0;
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if (_request == null)
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{
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var filePath = Const.GetStreamingPath(_fileName);
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_request = UnityWebRequest.Get(filePath);
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_request.downloadHandler = new DownloadHandlerFile(_savePath);
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_request.SendWebRequest();
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}
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_progress = _request.downloadProgress * 0.5f;
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if (!_request.isDone) return NTaskStatus.Running;
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if (_request.result == UnityWebRequest.Result.Success)
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{
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//结束，判断是否成功
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if (File.Exists(_savePath))
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{
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_progress = 1;
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_steps = Steps.Done;
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}
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else
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{
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if (_download)
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{
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_taskStatus = NTaskStatus.Fail;
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_steps = Steps.Download;
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}
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}
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}
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else
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{
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if (_download)
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{
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_taskStatus = NTaskStatus.Fail;
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_steps = Steps.Download;
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}
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}
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}
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else if (_steps == Steps.Download)
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{
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if (_downloadFileTask == null)
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{
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_downloadFileTask = new DownloadFileTask(Const.GetRemotePath(_fileName), _savePath);
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_downloadFileTask.Run();
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}
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_progress = 0.5f + _downloadFileTask.Progress * 0.5f;
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if (!_downloadFileTask.IsDone) return NTaskStatus.Running;
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_taskStatus = _downloadFileTask.Status;
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_steps = Steps.Done;
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_progress = 1;
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}
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return _steps == Steps.Done ? _taskStatus : NTaskStatus.Running;
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}
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}
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} |