更新Demo

更新Demo

UnityProject/Packages/YooAsset/Runtime/OperationSystem/OperationSystem.cs

@@ -0,0 +1,93 @@
+using System.Collections;
+using System.Collections.Generic;
+using System.Diagnostics;
+
+namespace YooAsset
+{
+	internal class OperationSystem
+	{
+		private static readonly List<AsyncOperationBase> _operations = new List<AsyncOperationBase>(100);
+		private static readonly List<AsyncOperationBase> _newList = new List<AsyncOperationBase>(100);
+
+		// 计时器相关
+		private static Stopwatch _watch;
+		private static long _frameTime;
+
+		/// <summary>
+		/// 异步操作的最小时间片段
+		/// </summary>
+		public static long MaxTimeSlice { set; get; } = long.MaxValue;
+
+		/// <summary>
+		/// 处理器是否繁忙
+		/// </summary>
+		public static bool IsBusy
+		{
+			get
+			{
+				return _watch.ElapsedMilliseconds - _frameTime >= MaxTimeSlice;
+			}
+		}
+
+
+		/// <summary>
+		/// 初始化异步操作系统
+		/// </summary>
+		public static void Initialize()
+		{
+			_watch = Stopwatch.StartNew();
+		}
+
+		/// <summary>
+		/// 更新异步操作系统
+		/// </summary>
+		public static void Update()
+		{
+			_frameTime = _watch.ElapsedMilliseconds;
+
+			// 添加新的异步操作
+			if (_newList.Count > 0)
+			{
+				_operations.AddRange(_newList);
+				_newList.Clear();
+			}
+
+			// 更新所有的异步操作
+			for (int i = _operations.Count - 1; i >= 0; i--)
+			{
+				if (IsBusy)
+					break;
+
+				var operation = _operations[i];
+				operation.Update();
+				if (operation.IsDone)
+				{
+					_operations.RemoveAt(i);
+					operation.SetFinish(); //注意：如果业务端发生异常，保证异步操作提前移除。
+				}
+			}
+		}
+
+		/// <summary>
+		/// 销毁异步操作系统
+		/// </summary>
+		public static void DestroyAll()
+		{
+			_operations.Clear();
+			_newList.Clear();
+			_watch = null;
+			_frameTime = 0;
+			MaxTimeSlice = long.MaxValue;
+		}
+
+		/// <summary>
+		/// 开始处理异步操作类
+		/// </summary>
+		public static void StartOperation(AsyncOperationBase operation)
+		{
+			_newList.Add(operation);
+			operation.SetStart();
+			operation.Start();
+		}
+	}
+}