public bool IntersectsWith(RectangleF rect)
{
float minx = Math.Max(m_x, rect.m_x);
float miny = Math.Max(m_y, rect.m_y);
float maxx = Math.Min(m_x + m_width, rect.X + rect.Width);
float maxy = Math.Min(m_y + m_height, rect.Y + rect.Height);
if ( minx>maxx ) return false;
if ( miny>maxy ) return false;
return (maxx - minx) * (maxy - miny) > 0;
}
public bool Contains(RectangleF rect)
{
float minx = Math.Max(m_x, rect.X);
float miny = Math.Max(m_y, rect.Y);
float maxx = Math.Min(m_x + m_width, rect.m_x + rect.Width);
float maxy = Math.Min(m_y + m_height, rect.m_y + rect.Height);
if (minx > maxx) return false;
if (miny > maxy) return false;
return (maxx - minx) * (maxy - miny) == rect.Width * rect.Height;
}
static public bool isVisible(Camera camera, RectangleF box)
{
return false;
}