complete project with 4x4 table function

Chaser/ChaserLibrary/PainterWinform.cs

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+using System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ChaserLibrary
+{
+    public class PainterWinform : IPaintable
+    {
+        Graphics PainterG { get; set; }
+        static Pen PenG { get; set; } = new Pen(Color.Black);
+
+        public PainterWinform(Graphics painterG)
+        { 
+            PainterG = painterG;
+        }
+
+        public void PaintCircle(double X, double Y, int radius)
+        {
+            PainterG.DrawEllipse(PenG, new Rectangle((int) X, (int) Y, radius, radius));
+        }
+
+        public void PaintCross(double X, double Y)
+        {
+            int x = (int) X;
+            int y = (int) Y;
+            PainterG.DrawLine(PenG, x - 5, y - 5, x + 5, y + 5);
+            PainterG.DrawLine(PenG, x + 5, y - 5, x - 5, y + 5);
+        }
+
+    }
+}