prepare to send different data per client

TanksServer/Graphics/GeneratePixelsTickStep.cs

@@ -5,18 +5,30 @@ namespace TanksServer.Graphics;
 
 internal sealed class GeneratePixelsTickStep(
     IEnumerable<IDrawStep> drawSteps,
-    LastFinishedFrameProvider lastFrameProvider
+    IEnumerable<IFrameConsumer> consumers
 ) : ITickStep
 {
     private readonly List<IDrawStep> _drawSteps = drawSteps.ToList();
-    private readonly PixelGrid _drawGrid = new(MapService.PixelsPerRow, MapService.PixelsPerColumn);
+    private readonly List<IFrameConsumer> _consumers = consumers.ToList();
 
-    public Task TickAsync()
+    private readonly PixelGrid _observerPixelGrid = new(MapService.PixelsPerRow, MapService.PixelsPerColumn);
+    private readonly GamePixelGrid _gamePixelGrid = new(MapService.PixelsPerRow, MapService.PixelsPerColumn);
+
+    public async Task TickAsync()
     {
-        _drawGrid.Clear();
+        _gamePixelGrid.Clear();
         foreach (var step in _drawSteps)
-            step.Draw(_drawGrid);
-        lastFrameProvider.LastFrame = _drawGrid;
-        return Task.CompletedTask;
+            step.Draw(_gamePixelGrid);
+
+        _observerPixelGrid.Clear();
+        for (var y = 0; y < MapService.PixelsPerColumn; y++)
+        for (var x = 0; x < MapService.PixelsPerRow; x++)
+        {
+            if (_gamePixelGrid[x, y].EntityType.HasValue)
+                _observerPixelGrid[(ushort)x, (ushort)y] = true;
+        }
+
+        foreach (var consumer in _consumers)
+            await consumer.OnFrameDoneAsync(_gamePixelGrid, _observerPixelGrid);
     }
 }