first commit

core/Vector2.cpp

@@ -0,0 +1,121 @@
+#include "Vector2.h"
+
+Vector2::Vector2()
+        : m_X(0),
+          m_Y(0)
+{
+
+}
+
+Vector2::Vector2(
+        PointType x,
+        PointType y
+)
+        : m_X(x),
+          m_Y(y)
+{
+
+}
+
+Vector2::PointType Vector2::x() const
+{
+    return m_X;
+}
+
+Vector2::PointType Vector2::y() const
+{
+    return m_Y;
+}
+
+Vector2::PointType& Vector2::x()
+{
+    return m_X;
+}
+
+Vector2::PointType& Vector2::y()
+{
+    return m_Y;
+}
+
+Vector2 Vector2::operator*(
+        const PointType& rhs
+) const
+{
+    return Vector2(
+            m_X * rhs,
+            m_Y * rhs
+    );
+}
+
+Vector2& Vector2::operator+=(
+        const Vector2& rhs
+)
+{
+    m_X += rhs.m_X;
+    m_Y += rhs.m_Y;
+
+    return *this;
+}
+
+Vector2& Vector2::operator-=(
+        const Vector2& rhs
+)
+{
+    m_X -= rhs.m_X;
+    m_Y -= rhs.m_Y;
+
+    return *this;
+}
+
+bool operator==(
+        const Vector2& lhs,
+        const Vector2& rhs
+)
+{
+    return
+            lhs.m_X == rhs.m_X &&
+            lhs.m_Y == rhs.m_Y;
+}
+
+bool operator!=(
+        const Vector2& lhs,
+        const Vector2& rhs
+)
+{
+    return !(lhs == rhs);
+}
+
+Vector2 operator+(
+        Vector2 lhs,
+        const Vector2& rhs
+)
+{
+    lhs += rhs;
+
+    return lhs;
+}
+
+Vector2 operator-(
+        Vector2 lhs,
+        const Vector2& rhs
+)
+{
+    lhs -= rhs;
+
+    return lhs;
+}
+
+std::ostream& operator<<(
+        std::ostream& os,
+        const Vector2& obj
+)
+{
+    os
+            << "{"
+            << obj.x()
+            << ", "
+            << obj.y()
+            << "}";
+
+    return os;
+}