/// <summary>
/// Returns the quotient of two <see cref="IHexCoordinate" />.
/// </summary>
/// <param name="left"><see cref="IHexCoordinate" />.</param>
/// <param name="right"><see cref="IHexCoordinate" />.</param>
/// <returns>Quotient of <paramref name="left" /> and <paramref name="right" />.</returns>
/// <exception cref="ArgumentNullException"><paramref name="left" /> is null.</exception>
public static IHexCoordinate Divide(this IHexCoordinate left, int right)
{
if (left == null)
{
throw new ArgumentNullException("left");
}
return(HexCoordinates.Axial(left.Q / right, left.R / right));
}
private static IHexCoordinate OffsetDistance(this IAxialCoordinate coordinate, int qOffset, int rOffset,
int distance)
{
if (coordinate == null)
{
throw new ArgumentNullException("coordinate");
}
qOffset *= distance;
rOffset *= distance;
return(HexCoordinates.Axial(coordinate.Q + qOffset, coordinate.R + rOffset));
}
/// <summary>
/// Returns the difference of two <see cref="IHexCoordinate" />.
/// </summary>
/// <param name="left"><see cref="IHexCoordinate" />.</param>
/// <param name="right"><see cref="IHexCoordinate" />.</param>
/// <returns>Difference of <paramref name="left" /> and <paramref name="right" />.</returns>
/// <exception cref="ArgumentNullException"><paramref name="left" /> or <paramref name="right" /> is null.</exception>
public static IHexCoordinate Subtract(this IHexCoordinate left, IHexCoordinate right)
{
if (left == null)
{
throw new ArgumentNullException("left");
}
if (right == null)
{
throw new ArgumentNullException("right");
}
return(HexCoordinates.Axial(left.Q - right.Q, left.R - right.R));
}
/// <summary>
/// Initializes a new unit <see cref="IHexCoordinate" /> with given <paramref name="direction" /> and
/// <paramref name="distance" />.
/// </summary>
/// <param name="direction">Direction from (0, 0).</param>
/// <param name="distance">Distance from (0, 0).</param>
/// <returns>Unit <see cref="IHexCoordinate" />.</returns>
/// <exception cref="ArgumentOutOfRangeException">
/// <para><paramref name="distance" /> < 0.</para>
/// <para><paramref name="direction" /> out of range.</para>
/// </exception>
public static IHexCoordinate Distance(this HexDirection direction, int distance)
{
return(HexCoordinates.Axial(0, 0).Neighbor(direction, distance));
}
