// top left and bottom right corner, or by the top left corner and size. A point is contained within the rectangle if
// left <= x < right and top <= m_y < bottom , thus it is a half open interval.
// top left and bottom right corner, or by the top left corner and size. A point is contained within the rectangle if
// left <= x < right and top <= m_y < bottom , thus it is a half open interval.