/// <summary>
/// Checks if the rectangle intersects with other specified rectangle.
/// </summary>
/// <param name="rect">Rectangle to check.</param>
/// <returns>True - if yes; otherwise - false.</returns>
public bool Intersects(MyRectangle rect)
{
return(rect.Peak.X < this.Peak.X + this.Width &&
this.Peak.X < rect.Peak.X + rect.Width &&
rect.Peak.Y < this.Peak.Y + this.Height &&
this.Peak.Y < rect.Peak.Y + rect.Height);
}
/// <summary>
/// Returns a new rectangle as a result of intersection of two rectangles.
/// </summary>
/// <param name="rect1">First rectangle.</param>
/// <param name="rect2">Second rectangle.</param>
/// <returns>New rectangle.</returns>
public static MyRectangle BuildIntersection(MyRectangle rect1, MyRectangle rect2)
{
if (rect1 is null || rect2 is null)
{
throw new ArgumentNullException();
}
if (rect1.Intersects(rect2))
{
int rigthSide = Math.Min(rect1.Peak.X + rect1.Width, rect2.Peak.X + rect2.Width);
int leftSide = Math.Max(rect1.Peak.X, rect2.Peak.X);
int topSide = Math.Min(rect1.Peak.Y, rect2.Peak.Y);
int bottomSide = Math.Min(rect1.Peak.Y + rect1.Height, rect2.Peak.Y + rect2.Height);
return(new MyRectangle(new Point2D(leftSide, topSide), rigthSide - leftSide, bottomSide - topSide));
}
else
{
return(new MyRectangle());
}
}
/// <summary>
/// Returns a new rectangle that contains in two specified rectangles.
/// </summary>
/// <param name="rect1">First rectangle.</param>
/// <param name="rect2">Second rectangle.</param>
/// <returns>New rectangle.</returns>
public static MyRectangle BuildContainerRect(MyRectangle rect1, MyRectangle rect2)
{
if (rect1 is null || rect2 is null)
{
throw new ArgumentNullException();
}
//select top left point
//select the smallest x.
int x = Math.Min(rect1.Peak.X, rect2.Peak.X);
//select the greatest y.
int y = Math.Max(rect1.Peak.Y, rect2.Peak.Y);
//bottom right
int width = 2 * Math.Abs(Math.Max(rect1.Width, rect2.Width) - Math.Min(rect1.Width, rect2.Width));
int height = 2 * Math.Abs(Math.Max(rect1.Height, rect2.Height) - Math.Min(rect1.Height, rect2.Height));
return(new MyRectangle(new Point2D(x, y), width, height));
}
