Completed Shape.cs and Program.cs

Shapes/Program.cs

@@ -33,7 +33,22 @@ void Run()
 
 void HandleClick(ClickEvent @event)
 {
-    // TODO - handle click at location
+    // Check if clicked on existing shape
+    foreach (var shape in shapes.ToList())
+    {
+        if (shape.PointInShape(@event.ClickedPoint))
+        {
+            shapes.Remove(shape);
+            Console.WriteLine($"Removed shape with id {shape.Id}");
+            Redraw();
+            return;
+        }
+    }
+    
+    // Create new shape
+    var generatedShape = generator.CreateNewShape(@event.ClickedPoint);
+    shapes.Add(generatedShape);
+    Console.WriteLine($"Added shape with id {generatedShape.Id}");
 
     Redraw();
 }