SqUR

The names of the product elements

The name of the type

The mirrored *-type

The angle of inclination of this square grid direction.

the step that foes in the opposite direct to this step.

Tile step c column coordinate delta

Tile step r row coordinate delta.

Create a new instance of type T with elements taken from product p.

Performs the side effecting function on each Double in this Product element.

Is an UpRight / DownRight / DownLeft / UPLeft step.

Is perpendicular or non diagonal an Up / Right / Down / Left square tile direction or step

The SqCen that this step would point to if it departed from SqCen(0, 0).