85 lines
2.4 KiB
C#
85 lines
2.4 KiB
C#
using System.Buffers;
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using System.Net.WebSockets;
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using ServicePoint;
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using TanksServer.Graphics;
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namespace TanksServer.Interactivity;
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internal sealed class ClientScreenServerConnection
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: DroppablePackageRequestConnection<ClientScreenServerConnection.Package>
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{
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private readonly BufferPool _bufferPool;
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private readonly PlayerScreenData? _playerDataBuilder;
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private readonly Player? _player;
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public ClientScreenServerConnection(
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WebSocket webSocket,
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ILogger<ClientScreenServerConnection> logger,
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Player? player,
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BufferPool bufferPool
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) : base(logger, new ByteChannelWebSocket(webSocket, logger, 0))
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{
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_player = player;
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_bufferPool = bufferPool;
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_player?.IncrementConnectionCount();
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_playerDataBuilder = player == null
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? null
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: new PlayerScreenData(logger, player);
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}
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public async Task OnGameTickAsync(Bitmap pixels, GamePixelGrid gamePixelGrid)
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{
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await Task.Yield();
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var next = BuildNextPackage(pixels, gamePixelGrid);
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SetNextPackage(next);
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}
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private Package BuildNextPackage(Bitmap pixels, GamePixelGrid gamePixelGrid)
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{
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var pixelsData = pixels.Data;
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var nextPixels = _bufferPool.Rent(pixelsData.Length);
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pixelsData.CopyTo(nextPixels.Memory.Span);
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if (_playerDataBuilder == null)
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return new Package(nextPixels, null);
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var data = _playerDataBuilder.Build(gamePixelGrid);
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var nextPlayerData = _bufferPool.Rent(data.Length);
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data.CopyTo(nextPlayerData.Memory);
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return new Package(nextPixels, nextPlayerData);
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}
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protected override async ValueTask SendPackageAsync(Package package)
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{
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try
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{
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await Socket.SendBinaryAsync(package.Pixels.Memory, package.PlayerData == null);
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if (package.PlayerData != null)
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await Socket.SendBinaryAsync(package.PlayerData.Memory);
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}
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catch (WebSocketException ex)
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{
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Logger.LogWarning(ex, "send failed");
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}
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}
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public override void Dispose()
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{
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base.Dispose();
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_player?.DecrementConnectionCount();
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}
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internal sealed record class Package(
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IMemoryOwner<byte> Pixels,
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IMemoryOwner<byte>? PlayerData
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) : IDisposable
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{
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public void Dispose()
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{
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Pixels.Dispose();
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PlayerData?.Dispose();
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}
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}
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}
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