ruby-warrior.rb

class Player
  def od(dir)
    return dir == :backward ? :forward : :backward
  end

  def play_turn(warrior)
    w = warrior
    @direction = :forward if @direction == nil
    @back = 0 if @back == nil
    @rest = false if @rest == nil

    if w.feel(@direction).wall?
      @direction = od(@direction)
    end

    # raise [w.feel(:backward).wall?, @direction].inspect  

    if w.health < 9 || @rest
      @rest = true
      if w.feel(od(@direction)).empty? && @back < 3
        @back += 1
        w.walk! od(@direction)
      else
        w.rest!
        if w.health >= 18
          @back = 0
          @rest = false
        end
      end

    elsif shoot? w, od(@direction)
      w.shoot! od(@direction)

    elsif shoot? w, @direction
      w.shoot! @direction

    elsif w.feel(@direction).empty?
      w.walk!(@direction)

    elsif w.feel(@direction).captive?
      w.rescue!(@direction)

    elsif w.feel(@direction).enemy?
      w.attack!(@direction)
      @rest = true
    end
  end

  def shoot?(w, dir)
    w.look(dir).each do |s|
      if s.captive?
        return false
      elsif s.enemy?
        return true
      end
    end
    return false
  end
end