add: Circle

frame/src/Vector.hpp

@@ -1,8 +1,8 @@
 #pragma once
-#include <iostream>
-
 #include "Size.hpp"
 
+#include <iostream>
+
 namespace frame
 {
     struct Vector
@@ -56,7 +56,12 @@ namespace frame
 
     inline std::ostream& operator<<(std::ostream& os, Vector const& v)
     {
-        return os << "x: "<< v.x << " y: " << v.y;
+        return os << "x: " << v.x << " y: " << v.y;
+    }
+
+    inline Vector operator+(Vector const& a, Vector const& b)
+    {
+        return {a.x + b.x, a.y + b.y};
     }
 
 } // namespace frame