更新Demo

2025-08-14 16:51:28 +00:00 · 2023-12-20 12:14:27 +08:00
parent f64bb37706
commit 17a5d7425c
847 changed files with 106095 additions and 0 deletions
--- a/UnityProject/Packages/YooAsset/Runtime/PackageSystem/Operations/DownloaderOperation.cs
+++ b/UnityProject/Packages/YooAsset/Runtime/PackageSystem/Operations/DownloaderOperation.cs
@@ -0,0 +1,285 @@
+using System.Collections;
+using System.Collections.Generic;
+
+namespace YooAsset
+{
+	public abstract class DownloaderOperation : AsyncOperationBase
+	{
+		private enum ESteps
+		{
+			None,
+			Check,
+			Loading,
+			Done,
+		}
+
+		private const int MAX_LOADER_COUNT = 64;
+
+		public delegate void OnDownloadOver(bool isSucceed);
+		public delegate void OnDownloadProgress(int totalDownloadCount, int currentDownloadCount, long totalDownloadBytes, long currentDownloadBytes);
+		public delegate void OnDownloadError(string fileName, string error);
+		public delegate void OnStartDownloadFile(string fileName, long sizeBytes);
+
+		private readonly int _downloadingMaxNumber;
+		private readonly int _failedTryAgain;
+		private readonly int _timeout;
+		private readonly List<BundleInfo> _downloadList;
+		private readonly List<DownloaderBase> _downloaders = new List<DownloaderBase>(MAX_LOADER_COUNT);
+		private readonly List<DownloaderBase> _removeList = new List<DownloaderBase>(MAX_LOADER_COUNT);
+		private readonly List<DownloaderBase> _failedList = new List<DownloaderBase>(MAX_LOADER_COUNT);
+
+		// 数据相关
+		private bool _isPause = false;
+		private long _lastDownloadBytes = 0;
+		private int _lastDownloadCount = 0;
+		private long _cachedDownloadBytes = 0;
+		private int _cachedDownloadCount = 0;
+		private ESteps _steps = ESteps.None;
+		
+
+		/// <summary>
+		/// 统计的下载文件总数量
+		/// </summary>
+		public int TotalDownloadCount { private set; get; }
+		
+		/// <summary>
+		/// 统计的下载文件的总大小
+		/// </summary>
+		public long TotalDownloadBytes { private set; get; }
+		
+		/// <summary>
+		/// 当前已经完成的下载总数量
+		/// </summary>
+		public int CurrentDownloadCount 
+		{
+			get { return _lastDownloadCount; }
+		}
+
+		/// <summary>
+		/// 当前已经完成的下载总大小
+		/// </summary>
+		public long CurrentDownloadBytes
+		{
+			get { return _lastDownloadBytes; }
+		}
+
+		/// <summary>
+		/// 当下载器结束（无论成功或失败）
+		/// </summary>
+		public OnDownloadOver OnDownloadOverCallback { set; get; }
+
+		/// <summary>
+		/// 当下载进度发生变化
+		/// </summary>
+		public OnDownloadProgress OnDownloadProgressCallback { set; get; }
+
+		/// <summary>
+		/// 当某个文件下载失败
+		/// </summary>
+		public OnDownloadError OnDownloadErrorCallback { set; get; }
+
+		/// <summary>
+		/// 当开始下载某个文件
+		/// </summary>
+		public OnStartDownloadFile OnStartDownloadFileCallback { set; get; }
+
+
+		internal DownloaderOperation(List<BundleInfo> downloadList, int downloadingMaxNumber, int failedTryAgain, int timeout)
+		{
+			_downloadList = downloadList;
+			_downloadingMaxNumber = UnityEngine.Mathf.Clamp(downloadingMaxNumber, 1, MAX_LOADER_COUNT); ;
+			_failedTryAgain = failedTryAgain;
+			_timeout = timeout;
+
+			if (downloadList != null)
+			{
+				TotalDownloadCount = downloadList.Count;
+				foreach (var packageBundle in downloadList)
+				{
+					TotalDownloadBytes += packageBundle.Bundle.FileSize;
+				}
+			}
+		}
+		internal override void Start()
+		{
+			YooLogger.Log($"Begine to download : {TotalDownloadCount} files and {TotalDownloadBytes} bytes");
+			_steps = ESteps.Check;
+		}
+		internal override void Update()
+		{
+			if (_steps == ESteps.None || _steps == ESteps.Done)
+				return;
+
+			if (_steps == ESteps.Check)
+			{
+				if (_downloadList == null)
+				{
+					_steps = ESteps.Done;
+					Status = EOperationStatus.Failed;
+					Error = "Download list is null.";
+				}
+				else
+				{
+					_steps = ESteps.Loading;
+				}
+			}
+
+			if (_steps == ESteps.Loading)
+			{
+				// 检测下载器结果
+				_removeList.Clear();
+				long downloadBytes = _cachedDownloadBytes;
+				foreach (var downloader in _downloaders)
+				{
+					downloadBytes += (long)downloader.DownloadedBytes;
+					if (downloader.IsDone() == false)
+						continue;
+
+					// 检测是否下载失败
+					if (downloader.HasError())
+					{
+						_removeList.Add(downloader);
+						_failedList.Add(downloader);
+						continue;
+					}
+
+					// 下载成功
+					_removeList.Add(downloader);
+					_cachedDownloadCount++;
+					_cachedDownloadBytes += downloader.GetDownloadFileSize();
+				}
+
+				// 移除已经完成的下载器（无论成功或失败）
+				foreach (var loader in _removeList)
+				{
+					_downloaders.Remove(loader);
+				}
+
+				// 如果下载进度发生变化
+				if (_lastDownloadBytes != downloadBytes || _lastDownloadCount != _cachedDownloadCount)
+				{
+					_lastDownloadBytes = downloadBytes;
+					_lastDownloadCount = _cachedDownloadCount;
+					Progress = (float)_lastDownloadBytes / TotalDownloadBytes;
+					OnDownloadProgressCallback?.Invoke(TotalDownloadCount, _lastDownloadCount, TotalDownloadBytes, _lastDownloadBytes);
+				}
+
+				// 动态创建新的下载器到最大数量限制
+				// 注意：如果期间有下载失败的文件，暂停动态创建下载器
+				if (_downloadList.Count > 0 && _failedList.Count == 0)
+				{
+					if (_isPause)
+						return;
+
+					if (_downloaders.Count < _downloadingMaxNumber)
+					{
+						int index = _downloadList.Count - 1;
+						var bundleInfo = _downloadList[index];
+						var downloader = DownloadSystem.CreateDownload(bundleInfo, _failedTryAgain, _timeout);
+						downloader.SendRequest();
+						_downloaders.Add(downloader);
+						_downloadList.RemoveAt(index);
+						OnStartDownloadFileCallback?.Invoke(bundleInfo.Bundle.BundleName, bundleInfo.Bundle.FileSize);
+					}
+				}
+
+				// 下载结算
+				if (_downloaders.Count == 0)
+				{
+					if (_failedList.Count > 0)
+					{
+						var failedDownloader = _failedList[0];
+						string fileName = failedDownloader.GetDownloadBundleName();
+						_steps = ESteps.Done;
+						Status = EOperationStatus.Failed;
+						Error = $"Failed to download file : {fileName}";
+						OnDownloadErrorCallback?.Invoke(fileName, failedDownloader.GetLastError());
+						OnDownloadOverCallback?.Invoke(false);
+					}
+					else
+					{
+						// 结算成功
+						_steps = ESteps.Done;
+						Status = EOperationStatus.Succeed;
+						OnDownloadOverCallback?.Invoke(true);
+					}
+				}
+			}
+		}
+
+		/// <summary>
+		/// 开始下载
+		/// </summary>
+		public void BeginDownload()
+		{
+			if (_steps == ESteps.None)
+			{
+				OperationSystem.StartOperation(this);
+			}
+		}
+
+		/// <summary>
+		/// 暂停下载
+		/// </summary>
+		public void PauseDownload()
+		{
+			_isPause = true;
+		}
+
+		/// <summary>
+		/// 恢复下载
+		/// </summary>
+		public void ResumeDownload()
+		{
+			_isPause = false;
+		}
+
+		/// <summary>
+		/// 取消下载
+		/// </summary>
+		public void CancelDownload()
+		{
+			if (_steps != ESteps.Done)
+			{
+				_steps = ESteps.Done;
+				Status = EOperationStatus.Failed;
+				Error = "User cancel.";
+			}
+		}
+	}
+
+	public sealed class ResourceDownloaderOperation : DownloaderOperation
+	{
+		internal ResourceDownloaderOperation(List<BundleInfo> downloadList, int downloadingMaxNumber, int failedTryAgain, int timeout)
+			: base(downloadList, downloadingMaxNumber, failedTryAgain, timeout)
+		{
+		}
+
+		/// <summary>
+		/// 创建空的下载器
+		/// </summary>
+		internal static ResourceDownloaderOperation CreateEmptyDownloader(int downloadingMaxNumber, int failedTryAgain, int timeout)
+		{
+			List<BundleInfo> downloadList = new List<BundleInfo>();
+			var operation = new ResourceDownloaderOperation(downloadList, downloadingMaxNumber, failedTryAgain, timeout);
+			return operation;
+		}
+	}
+	public sealed class ResourceUnpackerOperation : DownloaderOperation
+	{
+		internal ResourceUnpackerOperation(List<BundleInfo> downloadList, int downloadingMaxNumber, int failedTryAgain, int timeout)
+			: base(downloadList, downloadingMaxNumber, failedTryAgain, timeout)
+		{
+		}
+
+		/// <summary>
+		/// 创建空的解压器
+		/// </summary>
+		internal static ResourceUnpackerOperation CreateEmptyUnpacker(int upackingMaxNumber, int failedTryAgain, int timeout)
+		{
+			List<BundleInfo> downloadList = new List<BundleInfo>();
+			var operation = new ResourceUnpackerOperation(downloadList, upackingMaxNumber, failedTryAgain, int.MaxValue);
+			return operation;
+		}
+	}
+}