85 lines
2.5 KiB
C#
85 lines
2.5 KiB
C#
using System.Net.WebSockets;
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using System.Text.Json;
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using TanksServer.GameLogic;
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namespace TanksServer.Interactivity;
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internal sealed class PlayerInfoConnection : WebsocketServerConnection
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{
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private int _wantsInfoOnTick = 1;
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private byte[]? _lastMessage = null;
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private byte[]? _nextMessage = null;
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private readonly Player _player;
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private readonly MapEntityManager _entityManager;
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public PlayerInfoConnection(Player player,
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ILogger logger,
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WebSocket rawSocket,
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MapEntityManager entityManager) : base(logger, new ByteChannelWebSocket(rawSocket, logger, 0))
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{
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_player = player;
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_entityManager = entityManager;
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_player.IncrementConnectionCount();
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}
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protected override ValueTask HandleMessageAsync(Memory<byte> buffer)
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{
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var next = Interlocked.Exchange(ref _nextMessage, null);
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if (next != null)
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return SendAndDisposeAsync(next);
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_wantsInfoOnTick = 1;
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return ValueTask.CompletedTask;
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}
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public async ValueTask OnGameTickAsync()
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{
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await Task.Yield();
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var response = GetMessageToSend();
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var wantsNow = Interlocked.Exchange(ref _wantsInfoOnTick, 0) != 0;
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if (wantsNow)
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{
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await SendAndDisposeAsync(response);
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return;
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}
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Interlocked.Exchange(ref _nextMessage, response);
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}
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public override ValueTask RemovedAsync()
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{
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_player.DecrementConnectionCount();
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return ValueTask.CompletedTask;
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}
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private byte[] GetMessageToSend()
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{
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var tank = _entityManager.GetCurrentTankOfPlayer(_player);
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TankInfo? tankInfo = null;
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if (tank != null)
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{
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var magazine = tank.ReloadingUntil > DateTime.Now ? "[ RELOADING ]" : tank.Magazine.ToDisplayString();
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tankInfo = new TankInfo(tank.Orientation, magazine, tank.Position.ToPixelPosition(), tank.Moving);
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}
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var info = new PlayerInfo(
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_player.Name,
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_player.Scores,
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_player.Controls.ToDisplayString(),
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tankInfo,
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_player.OpenConnections);
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// TODO: switch to async version with pre-allocated buffer / IMemoryOwner
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return JsonSerializer.SerializeToUtf8Bytes(info, AppSerializerContext.Default.PlayerInfo);
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}
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private async ValueTask SendAndDisposeAsync(byte[] data)
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{
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await Socket.SendTextAsync(data);
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Interlocked.Exchange(ref _lastMessage, data);
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}
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}
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