require 'direction' class MicroManager def initialize(server) @server = server end attr_accessor :server end class Server def initialize(kitchen) @kitchen = kitchen @accountant = kitchen.accountant end attr_reader :kitchen attr_accessor :customer def order_food(food) puts "I'll put that order in for you right now" sleep(2) kitchen.make_food(food) serve_food(food) end def serve_food(food) retrieve_food(food) sleep(2) puts " " return_to_customer(food) end def retrieve_food(food) kitchen.provide_food(food) end def return_to_customer(food) puts "Here's your order of #{food}" end def pay_bill @accountant.accept_funds end end class Kitchen def make_food(food) puts " " sleep(3) puts " " end def provide_food(food) puts " " end def accountant @accountant ||= Accountant.new end end class Accountant def accept_funds puts " $$$ Cha-ching!" end end class Customer extend Direction def initialize(server) @server = server end attr_accessor :server command [:order_food, :pay_bill] => :server end def setup @kitchen = Kitchen.new @server = Server.new(@kitchen) @manager = MicroManager.new(@server) @customer = Customer.new(@server) @manager end