Crack Calculator was added

StructureHelperCommon/Models/Shapes/Logics/CircleShapeUpdateStrategy.cs

@@ -0,0 +1,17 @@
+using StructureHelperCommon.Infrastructures.Interfaces;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace StructureHelperCommon.Models.Shapes
+{
+    public class CircleShapeUpdateStrategy : IUpdateStrategy<ICircleShape>
+    {
+        public void Update(ICircleShape targetObject, ICircleShape sourceObject)
+        {
+            targetObject.Diameter = sourceObject.Diameter;
+        }
+    }
+}