public bool Equals(HexCoords other) => (q, r) == (other.q, other.r);
public static int Distance(HexCoords a, HexCoords b) { return((a - b).Length()); }
public int Distance(Hex other) { return(HexCoords.Distance(coords, other.coords)); }
public Hex(HexCoords coords) { this.coords = coords; }
public bool Contains(HexCoords coords) { return(AllowedCoordinates.Contains(coords)); }