https://www.bloc.io/ruby-warrior/#/warriors/31893/levels/9

gistfile1.rb

class Player
  def initialize()
    @health = 21
    @forward = :forward
    @backward = :backward
    @direction = @forward
  end
  
  def play_turn(warrior)
    spaces = warrior.look(:forward)
    if spaces.first.wall?
       warrior.pivot!
    else
       action(warrior,spaces)
    end
  end
  
  def action(warrior,spaces)
    if spaces.first.captive?
      warrior.rescue!(@direction)
    elsif spaces.first.enemy? 
      warrior.attack!
    elsif spaces[2].enemy?
      warrior.shoot!(@direction)
  
    elsif warrior.health < 10
      if warrior.health < @health
        warrior.walk!(:backward) #retreat
      else
        warrior.rest!
      end
    elsif warrior.health < 20
      if warrior.health < @health
        warrior.walk! #charge!
      else
        warrior.rest!
      end
    else
      warrior.walk!(@direction)
    end
  @health = warrior.health
  end
end