# Nathan Hinton 2 Oct 2025


# A helper class for storing and converting universe point formats:
class Position
  attr_reader :x_pos, :y_pos, :a, :b, :c
  def initialize(*args)
    if args.length == 2
      # initialize with x, y position:
      if args.sum.odd?
        raise ArgumentError.new('A position created in (x, y) must sum to an even number!')
      end
      @x_pos = args[0]
      @y_pos = args[1]
    elsif args.length == 3
      # initialize with a, b, c position
      raise NotImplementedError.new('(a, b, c) positioning not implimented!')
    else
      require 'byebug';debugger
      raise ArgumentError.new('Creation of a position requires two or three integer args for a position.')
    end
  end

  # Returns the corrdinates in the 2d plane in a 3 axis notation.
  #
  # @return [Array<Integer>] The (a, b, c) position
  def two_d_hexagonal
    return [a, b, c]
  end

  # Returns the coordinates in the 2d plane
  #
  # @return [Array<Integer>] The (x, y) position
  def two_d_cartesian
    return [x_pos, y_pos]
  end

  def to_s
    return "(#{@x_pos}, #{y_pos})"
  end
end