/// <summary>Returns true if the other direction is opposite to this one this one.</summary>
public static bool IsOpposite(this CardinalDir direction, CardinalDir other)
{
return(direction != other && direction.Axis() == other.Axis());
}
/// <summary>Returns true if the other direction is immediately clockwise or counterclockwise of this one.</summary>
public static bool IsAdjacent(this CardinalDir direction, CardinalDir other)
{
return(direction.Axis() != other.Axis());
}
