complete project with 4x4 table function

Chaser/ChaserLibrary/Entity.cs

@@ -0,0 +1,25 @@
+namespace ChaserLibrary
+{
+    public abstract class Entity
+    {
+
+        public IPaintable? Painter { get; set; }
+        public double X { get; private set; }
+        public double Y { get; private set; }
+        public double VelocityX { get; set; }
+        public double VelocityY { get; set; }
+
+        public Entity(double x, double y)
+        {
+            X = x;
+            Y = y;
+        }
+        public void Move()
+        {
+            X += VelocityX;
+            Y += VelocityY;
+        }
+        public abstract void Update();
+        public abstract void Draw();         
+    }
+}