first commit

core/Vector2.h

@@ -0,0 +1,78 @@
+#pragma once
+
+#include <ostream>
+
+class Vector2
+{
+    using PointType = long long;
+
+    friend bool operator==(
+            const Vector2& lhs,
+            const Vector2& rhs
+    );
+
+    friend Vector2 operator+(
+            Vector2 lhs,
+            const Vector2& rhs
+    );
+
+    friend Vector2 operator-(
+            Vector2 lhs,
+            const Vector2& rhs
+    );
+
+public:
+    Vector2();
+
+    Vector2(
+            PointType x,
+            PointType y
+    );
+
+    PointType x() const;
+    PointType y() const;
+
+    PointType& x();
+    PointType& y();
+
+    Vector2 operator*(
+            const PointType& rhs
+    ) const;
+
+    Vector2& operator+=(
+            const Vector2& rhs
+    );
+
+    Vector2& operator-=(
+            const Vector2& rhs
+    );
+
+private:
+    PointType m_X;
+    PointType m_Y;
+};
+
+bool operator==(
+        const Vector2& lhs,
+        const Vector2& rhs
+);
+
+bool operator!=(
+        const Vector2& lhs,
+        const Vector2& rhs
+);
+
+Vector2 operator+(
+        Vector2 lhs,
+        const Vector2& rhs
+);
+
+Vector2 operator-(
+        Vector2 lhs,
+        const Vector2& rhs
+);
+
+std::ostream& operator<<(
+        std::ostream& os,
+        const Vector2& obj
+);