module NasaRovers
  class Coord
    def self.origin
      @origin ||= new(0, 0)
    end

    def self.factory(data)
      new(*data.split(" "))
    end

    attr_accessor :x, :y

    def initialize(x, y)
      @x, @y = x.to_i, y.to_i
    end

    def to_s
      "#{x} #{y}"
    end

    def >=(other)
      x >= other.x && y >= other.y
    end

    def <=(other)
      x <= other.x && y <= other.y
    end

    def ==(other)
      x == other.x && y == other.y
    end
  end
end