public bool Contains(Rectangle rectangle)
{
return rectangle.Left >= Left && rectangle.Top >= Top && rectangle.Right <= Right && rectangle.Bottom <= Bottom;
}
public bool Overlaps(Rectangle rectangle)
{
return Left < rectangle.Right && rectangle.Left < Right && Top < rectangle.Bottom && rectangle.Top < Bottom;
}
public bool IntersectsWith(Rectangle rect)
{
return rect.Contains(this);
}