benihana.rb

class Benihana
  Courses = {
      "Soup" => 10,
      "Salad" => 10,
      "Veggies and Shrimp" => 20,
      "Fried Rice" => 25,
      "Rocky's Choice" => 35
  }
  
  private_constant :Courses
  
  def initialize
    @sake_bomb_count = 0
    @hunger_level = 100
  end
  
  def self.courses
    Courses.keys
  end
  
  def eat_course(course)
    if !Courses.include? course
      puts "That's not a course they serve... How drunk are you, and where did you get that #{course}?!"
      return nil
    end
    safe_eat(Courses[course])
  end
  
  def take_sake_bomb
    @sake_bomb_count += 1
  end
  
  def hunger_level
    return @hunger_level
  end
  
  def sake_bomb_count
    return @sake_bomb_count
  end
  
  private
  
  def safe_eat(course_cost)
    if @hunger_level < course_cost
      puts "You're too full, bro. Stop eating." 
      return nil
    end
    
    @hunger_level -= course_cost
  end
end

Example usage:

andy = Benihana.new

Benihana.courses.each_with_index do |course, i|
  andy.eat_course(course)
  (i + 1).times { andy.take_sake_bomb }
end

puts "Hunger Level: #{andy.hunger_level}, Sake Bomb Count: #{andy.sake_bomb_count}"