private static SectorEdge BuildEdge(Position square, EdgeSegmentId id, SquarePoint left, SquarePoint right) =>
SectorEdge.FromPosition(
square,
new EdgeSegment(
id,
new SectorDescription(1),
SectorDescription.OutsideLevel,
Left: left,
Right: right));
public static (SquarePoint Left, SquarePoint Right) GetLeftAndRight(this EdgeSegmentId id, SquareSegment frontSegment) => (id, frontSegment) switch