Ruby Warrior (Beginner)

ruby_warrior_beginner.rb

class Player
  DIRS = [:forward, :backward]
  
  def initialize
    @dir = :forward
  end
  
  def play_turn(warrior)
    @warrior = warrior
    space = warrior.feel(@dir)
    if space.wall?
      change_dir!
      warrior.walk!(@dir)
    elsif space.captive?
      warrior.rescue!(@dir)
    elsif space.empty?
      if lost_health_twice_in_a_row?
        change_dir!
        warrior.walk!(@dir)
      elsif warrior.health < 20
        warrior.rest!
      else
        warrior.walk!(@dir)
      end
    else
      warrior.attack!(@dir)
    end
    @lost_health_in_prev_turn = losing_health?
    @prev_health = warrior.health
  end
  
  def losing_health?
    @prev_health && @prev_health > @warrior.health
  end
  
  def lost_health_twice_in_a_row?
    @lost_health_in_prev_turn && losing_health?
  end
  
  def change_dir!
    @dir = @dir == :forward ? :backward : :forward
  end
  
  def random_change_dir!
    @dir = DIRS[rand(DIRS.length)]
  end
end