initial project, implement binary format of display

TanksServer/DisplayPixelBuffer.cs

@@ -0,0 +1,55 @@
+namespace TanksServer;
+
+public sealed class DisplayPixelBuffer(byte[] data)
+{
+    public byte[] Data => data;
+
+    public byte Magic1
+    {
+        get => data[0];
+        set => data[0] = value;
+    }
+
+    public byte Magic2
+    {
+        get => data[1];
+        set => data[1] = value;
+    }
+
+    public ushort X
+    {
+        get => GetTwoBytes(2);
+        set => SetTwoBytes(2, value);
+    }
+
+    public ushort Y
+    {
+        get => GetTwoBytes(4);
+        set => SetTwoBytes(4, value);
+    }
+
+    public ushort WidthInTiles
+    {
+        get => GetTwoBytes(6);
+        set => SetTwoBytes(6, value);
+    }
+
+    public ushort HeightInPixels
+    {
+        get => GetTwoBytes(8);
+        set => SetTwoBytes(8, value);
+    }
+
+    public FixedSizeBitFieldView Pixels { get; } = new(data.AsMemory(10));
+
+    private ushort GetTwoBytes(int index)
+    {
+        return (ushort)(data[index] * byte.MaxValue + data[index + 1]);
+    }
+
+    private void SetTwoBytes(int index, ushort value)
+    {
+        data[index] = (byte)(value / byte.MaxValue);
+        data[index + 1] = (byte)(value % byte.MaxValue);
+    }
+}