104 lines
4.3 KiB
C#
104 lines
4.3 KiB
C#
using Microsoft.Extensions.Hosting;
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using System.Diagnostics;
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using System.Numerics;
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namespace XNet.Business
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{
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public class GameLoopService : BackgroundService
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{
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private readonly NavMeshManager _navMeshManager;
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private readonly SceneAgent _sceneAgent;
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private readonly WsConnectionManager _wsManager; // 新增WebSocket管理器
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private const int TARGET_FPS = 30;
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private const int FRAME_TIME_MS = 1000 / TARGET_FPS;
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public GameLoopService(NavMeshManager navMeshManager, SceneAgent sceneAgent, WsConnectionManager wsManager)
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{
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_navMeshManager = navMeshManager;
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_sceneAgent = sceneAgent;
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_wsManager = wsManager;
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}
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protected override async Task ExecuteAsync(CancellationToken stoppingToken)
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{
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Console.WriteLine("=== Server Initializing Resources... ===");
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// 1. 加载所有静态地图资源 (Templates)
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// 这里假设路径固定，实际可从配置表读取
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_navMeshManager.LoadTemplate("Map_Forest", @"D:\NavMeshExport.obj");
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//_navMeshManager.LoadTemplate("Map_Dungeon", @"D:\NavMeshExport.obj");
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// 2. 模拟创建副本逻辑 (实际应由 WebAPI 或 MatchService 触发)
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// 假设现在有两个队伍分别开启了森林副本
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string instanceGuid_A = "Instance_TeamA_" + Guid.NewGuid();
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string instanceGuid_B = "Instance_TeamB_" + Guid.NewGuid();
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// 注册 NavMesh 映射
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_navMeshManager.CreateInstance(instanceGuid_A, "Map_Forest");
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_navMeshManager.CreateInstance(instanceGuid_B, "Map_Forest"); // 复用同一份 NavMesh 内存
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// 为这两个副本创建独立的物理/避障模拟器
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_sceneAgent.CreateCrowdForInstance(instanceGuid_A);
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_sceneAgent.CreateCrowdForInstance(instanceGuid_B);
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// 添加一些测试怪物
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int monsterA = _sceneAgent.AddAgent(instanceGuid_A, new Vector3(-4, 0, -4), 0.05f, 1);
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_sceneAgent.AgentGoto(instanceGuid_A, monsterA, new Vector3(5, 0, 3));
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Console.WriteLine("=== Server Game Loop Started ===");
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var stopwatch = new Stopwatch();
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stopwatch.Start();
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long lastTime = stopwatch.ElapsedMilliseconds;
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while (!stoppingToken.IsCancellationRequested)
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{
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long currentTime = stopwatch.ElapsedMilliseconds;
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long elapsedMs = currentTime - lastTime;
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// 防止调试断点导致 delta 过大，限制最大单帧时间
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if (elapsedMs > 100) elapsedMs = 100;
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float deltaTime = elapsedMs / 1000.0f;
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lastTime = currentTime;
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// 【核心循环】
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// 现在不需要一把大锁锁住全服了
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// 1. 如果有来自 WebAPI 的异步命令（如动态创建副本），可以在 NavMeshManager 内部处理
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// 或者在这里手动处理队列 (如果使用了 CommandQueue)
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// _navMeshManager.ProcessCommands();
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// 2. 并行更新所有副本的 Crowd
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// 这行代码利用 SceneAgent 内部的 Parallel.ForEach，效率极高
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_sceneAgent.UpdateAll(deltaTime);
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// 2. 收集所有需要同步的Agent状态
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List<AgentPositionSyncMsg> allSyncMsgs =
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[
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// 遍历所有实例（可从_navMeshManager获取实例列表，或SceneAgent维护）
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.. _sceneAgent.GetAgentsNeedSync(instanceGuid_A),
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.. _sceneAgent.GetAgentsNeedSync(instanceGuid_B),
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];
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// 3. 异步发送WebSocket消息（不阻塞游戏循环）
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if (allSyncMsgs.Count > 0)
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{
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_ = _wsManager.SendAgentPositionBatchAsync(allSyncMsgs);
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}
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// 帧率控制
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long frameWorkTime = stopwatch.ElapsedMilliseconds - currentTime;
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int delay = (int)(FRAME_TIME_MS - frameWorkTime);
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if (delay > 0)
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{
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await Task.Delay(delay, stoppingToken);
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}
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}
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Console.WriteLine("=== Server Game Loop Stopped ===");
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}
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}
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} |