more stuff

Shapes/Shape.cs

@@ -1,19 +1,45 @@
-using System.ComponentModel;
-using System.Diagnostics.Tracing;
+using System;
+using System.Collections.Generic;
 using System.Drawing;
-using System.Reflection.Metadata.Ecma335;
 
 namespace Shapes
 {
     public abstract class Shape
     {
-        public abstract Color Fill { get; set; }
-        public abstract Color Color { get; set; }
+        
         public abstract double Width { get; }
         public abstract double Height { get; }
         public abstract double ComputeArea();
+        
+        public abstract Point CenterPoint { get; }
+        
+        public virtual List<Point> Points { get; }
+
 
         public abstract void Scale(double scaleFactor);
+        
+        
+        public void Rotate(double degrees)
+        {
+            double radians = degrees * (Math.PI / 180);
+            double cosTheta = Math.Cos(radians);
+            double sinTheta = Math.Sin(radians);
+            foreach (var point in Points)
+            {
+                var oldPoint = point;
+
+
+                var tempX = oldPoint.X - CenterPoint.X;
+                var tempY = oldPoint.Y - CenterPoint.X;
+
+                var rotatedX = tempX*cosTheta - tempY*sinTheta;
+                var rotatedY = tempX*sinTheta + tempY*cosTheta;
+
+                point.X = rotatedX + CenterPoint.X;
+                point.Y = rotatedY + CenterPoint.Y;
+
+            }
+        }
 
 
     }