update servicepoint to branch with better codegen

tanks-backend/TanksServer/GameLogic/MapService.cs

@@ -42,7 +42,7 @@ internal sealed class MapService
         if (!_mapPrototypes.TryGetValue(name, out var prototype))
             return false; // name not found
 
-        pixelGrid = Bitmap.New(PixelsPerRow, PixelsPerColumn);
+        pixelGrid = new Bitmap(PixelsPerRow, PixelsPerColumn);
         DrawMapStep.Draw(pixelGrid, prototype.CreateInstance());
 
         _mapPreviews.TryAdd(name, pixelGrid); // another thread may have added the map already

tanks-backend/TanksServer/Graphics/GeneratePixelsTickStep.cs

@@ -7,12 +7,12 @@ namespace TanksServer.Graphics;
 internal sealed class GeneratePixelsTickStep(
     IEnumerable<IDrawStep> drawSteps,
     IEnumerable<IFrameConsumer> consumers
-) : ITickStep
+) : ITickStep, IDisposable
 {
     private GamePixelGrid _lastGamePixelGrid = new(MapService.PixelsPerRow, MapService.PixelsPerColumn);
-    private Bitmap _lastObserverPixelGrid = Bitmap.New(MapService.PixelsPerRow, MapService.PixelsPerColumn);
+    private Bitmap _lastObserverPixelGrid = new(MapService.PixelsPerRow, MapService.PixelsPerColumn);
     private GamePixelGrid _gamePixelGrid = new(MapService.PixelsPerRow, MapService.PixelsPerColumn);
-    private Bitmap _observerPixelGrid = Bitmap.New(MapService.PixelsPerRow, MapService.PixelsPerColumn);
+    private Bitmap _observerPixelGrid = new(MapService.PixelsPerRow, MapService.PixelsPerColumn);
 
     private readonly List<IDrawStep> _drawSteps = drawSteps.ToList();
     private readonly List<IFrameConsumer> _consumers = consumers.ToList();
@@ -44,4 +44,10 @@ internal sealed class GeneratePixelsTickStep(
                 observerPixelGrid[(ushort)x, (ushort)y] = true;
         }
     }
+
+    public void Dispose()
+    {
+        _lastObserverPixelGrid.Dispose();
+        _observerPixelGrid.Dispose();
+    }
 }

tanks-backend/TanksServer/Interactivity/SendToServicePointDisplay.cs

@@ -4,11 +4,10 @@ using System.Net.Sockets;
 using ServicePoint;
 using TanksServer.GameLogic;
 using TanksServer.Graphics;
-using CompressionCode = ServicePoint.BindGen.CompressionCode;
 
 namespace TanksServer.Interactivity;
 
-internal sealed class SendToServicePointDisplay : IFrameConsumer
+internal sealed class SendToServicePointDisplay : IFrameConsumer, IDisposable
 {
     private const int ScoresWidth = 12;
     private const int ScoresHeight = 20;
@@ -43,7 +42,7 @@ internal sealed class SendToServicePointDisplay : IFrameConsumer
 
         var localIp = GetLocalIPv4(displayConfig.Value).Split('.');
         Debug.Assert(localIp.Length == 4);
-        _scoresBuffer = Cp437Grid.New(12, 20);
+        _scoresBuffer = new Cp437Grid(12, 20);
 
         _scoresBuffer[00] = "== TANKS! ==";
         _scoresBuffer[01] = "-- scores --";
@@ -113,4 +112,10 @@ internal sealed class SendToServicePointDisplay : IFrameConsumer
         var endPoint = socket.LocalEndPoint as IPEndPoint ?? throw new NotSupportedException();
         return endPoint.Address.ToString();
     }
+
+    public void Dispose()
+    {
+        _displayConnection.Dispose();
+        _scoresBuffer.Dispose();
+    }
 }

tanks-backend/TanksServer/Program.cs

@@ -3,7 +3,6 @@ using Microsoft.AspNetCore.Builder;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.FileProviders;
 using ServicePoint;
-using SixLabors.ImageSharp;
 using TanksServer.GameLogic;
 using TanksServer.Graphics;
 using TanksServer.Interactivity;
@@ -101,7 +100,11 @@ public static class Program
         builder.Services.AddSingleton<Connection>(sp =>
         {
             var config = sp.GetRequiredService<IOptions<DisplayConfiguration>>().Value;
-            return Connection.Open($"{config.Hostname}:{config.Port}");
+            var connection = Connection.Open($"{config.Hostname}:{config.Port}");
+            if (connection == null)
+                throw new IOException($"Could not open connection to {config.Hostname}:{config.Port}");
+
+            return connection;
         });
 
         var app = builder.Build();

tanks-backend/servicepoint

@@ -1 +1 @@
-Subproject commit 9193cfec10c72d99ad01b1ae09a935007588d7d9
+Subproject commit f968f929173c6646acb7d9a3ed19112e626732b3