Chatar ukol Programovani 1

chatar.rb

class Chatar

  ACTIONS = {
      1 => :cut_trees,
      2 => :cut_logs,
      3 => :sleep,
      4 => :end_game
  }

  def initialize
    @days = 0
    @logs = 0
    @firewood = 3
  end

  def greetings
    puts "Stal ses chatarem v roce 1526. zkus prezit!"
  end

  def play!
    game_info
    user_input = get_user_input
    if ACTIONS.has_key?(user_input)
      self.send(ACTIONS[user_input])
      next_day
    else
      puts 'Neplatny vstup'
      _
    end
  end

  protected

  def game_info
    puts "\n\n"
    puts "Je #{@days}. den. V kulne mas #{@logs} klad a #{@firewood} polen."
    puts "\n"
    puts 'Co udelas?'
    puts '1. Pokacet strom'
    puts '2. Narezat kladu na polena'
    puts '3. Jit spat'
    puts '4. Ukoncit simulaci'
    puts "\n"
    puts "Tva volba:"
  end

  def sleep
    _
    puts "Sel jsi spat … chrrr chrrr chrrr"
  end

  def cut_trees
    _
    cut_tmp = rand(2..4)
    puts "Sel si na drevo, pokacel si #{cut_tmp} stromy, mas z nich #{cut_tmp} klady"
    add_logs(cut_tmp)
  end

  def cut_logs
    # raising an exception when we don't have logs to cut
    if @logs > 0
      # take logs
      taken_logs = rand(2..5)
      taken_logs = @logs if taken_logs > @logs
      # cut logs to firewood
      new_firewood = taken_logs * 2
      take_logs(taken_logs)
      add_firewood(new_firewood)
      # output result to a player
      _
      puts "Narezal jsi #{taken_logs} klad na #{new_firewood} polen"
    else
      _
      puts 'namas klady'
    end
  end

  def use_firewood
    # raise an exception when user has no firewood to burn
    raise '........umrzl' if @firewood == 0
    @firewood -= 1
  end

  def end_game
    # just ending the game
    _
    raise 'Konec simulace'
  end

  def add_logs(logs)
    @logs += logs
  end

  def add_firewood(firewood)
    @firewood += firewood
  end

  def take_logs(logs)
    @logs -= logs
  end

  def next_day
    @days += 1
    use_firewood
  end

  def get_user_input
    gets.strip.to_i
  end

  def _(times = 70)
    puts '-' * times.to_i
  end
end

# game
logger =  Chatar.new
logger.greetings
# let's play
loop do
  begin
   logger.play!
  rescue Exception => e
    puts e.message
    break
  end
end