Refactoring excercise. A version of adventure.rb that has been refactored to a degree.

adventure.rb

# I'm less sorry but still a bit sorry.

class Adventure

  def rooms
    {
      room_one: "You are in a maze of twisty little passages, all alike",
      room_two: "It is dark here. You are likely to be eaten by a grue.",
      room_three: "It is dark here."
    }
  end

  def room_for_direction(direction)
    if @location == :room_one && direction == "SOUTH"
      :room_two
    elsif @location == :room_two && direction == "NORTH"
      :room_one
    elsif @location == :room_two && direction == "EAST"
      :room_three
    elsif @location == :room_three && direction == "WEST"
      :room_two
    else
      nil
    end
  end

  def move_into(location)
    @location = location
    puts rooms[@location]
  end

  def kind_of_direction?(result)
    ["NORTH", "SOUTH", "EAST", "WEST"].include?(result)
  end

  def in_a_room_with_a_grue?
    @location == :room_three
  end

  def puts_help
    puts "Here are the accepted commands:"
    puts "NORTH to go NORTH"
    puts "SOUTH to go SOUTH"
    puts "EAST to go EAST"
    puts "WEST to go WEST"
    puts "INVENTORY to see what you are carrying"
    puts "LOOK to see what you can see"
    puts "PICK UP to pick something up"
  end

  def puts_inventory
    puts "You have a lantern. It has no oil in it."
    if @hat_on_head
      puts "A jaunty hat rests upon your head."
    end
  end

  def run
    @location = :room_one
    puts rooms[@location]

    6.times do
      puts "What do you do?"
      result = gets.chomp
      if result == "HELP"
        puts_help
      elsif kind_of_direction?(result)
        room = room_for_direction(result)
        if room
          move_into(room)
        else
          puts "You can't go that way!"
        end
      elsif result == "INVENTORY"
        puts_inventory
      elsif result == "LOOK" && !@hat_on_head
        puts "You can see a hat on the ground."
      else
        puts "I don't understand that."
      end
      if in_a_room_with_a_grue?
        puts "You have been eaten by a grue!"
        return
      end
    end

    puts "You have died of starvation."
  end

end