maze.rb

require 'hateoas'

class Maze
  include Hateoas::MediaType

  media_type "application/vnd.amundsen.maze+xml"

  serialization :xml

  element :maze,
          :cell,
          :code,
          :error,
          :collection,
          :item,
          :link,
          :message,
          :title,
          :debug

  attribute :href,
            :rel,
            :side,
            :total,
            :version

  relation :collection,
           :current,
           :east,
           :exit,
           :maze,
           :north,
           :south,
           :start,
           :west

  action :north,
         :south,
         :east,
         :west,
         :exit

end

maze = Maze.new("http://amundsen.com/examples/mazes/2d/five-by-five/")

puts "Let's navigate a maze!"
maze.transition("start")

action = ""

until action == "exit"
  # puts maze.data #for debugging
  puts "You can do these things:"
  puts maze.actions.join(", ")
  puts "What would you like to do?"
  action = gets.chomp
  maze.transition(action)
end

puts "Done!"