def control_loop
    ready!
    loop do
      show
      @inputs.push console
      case @command_line
      when 'D' then @debug = !@debug
      when 'Q' then terminate!
      when 'I' then initialize!
      when /^[A-J]([1-9]|10)$/ then shoot
      else @grid_opponent.status_line = "Incorrect input #{@command_line}"
      end
      break if game_over? || terminated? || initialized? || ENV['RACK_ENV'] == 'test'
    end
end

  def select_game
    return $board_size = 10, @wybrana_gra = ClassicGame if ENV['RACK_ENV'] == 'test'
    check = false
    while check == false
      puts "\nWybierz wersje gry\nA. Gra klasyczna (pole 10x10)
      \nB. Gra z wyborem pola (Podana wartosc x Podana wartosc)."
      input = gets.chomp.rstrip.upcase
      if input == 'A'
        create_classic_game
        check = true
      elsif input == 'B'
        create_extra_game
        check = true
      else
        puts 'Aby wybrać podaj A lub B'
      end
    end
  end

  def create_extra_game
    @wybrana_gra = ExtraGame
    board_size_validation
  end

  def create_classic_game
    @wybrana_gra = ClassicGame
    $board_size = 10
  end

  def board_size_validation
    $board_size = 1
    while $board_size < 5 || $board_size > 60
      puts('Podaj długość boku pola do gry (z przedzialu 5-60)')
      $board_size = gets.chomp.to_i
    end
  end

def control_loop #zmieniono
    ready!
    input_condition = TypeOfGame.new
    loop do
      show
      @inputs.push console
      case @command_line
      when 'D' then @debug = !@debug
      when 'Q' then terminate!
      when 'I' then initialize!
      when input_condition.key_validation(@wybrana_gra) then shoot
      else @grid_opponent.status_line = "Incorrect input #{@command_line}"
      end
      break if game_over? || terminated? || initialized? || ENV['RACK_ENV'] == 'test'
    end
  end

class TypeOfGame
def key_validation(selected_game = ClassicGame)
  game = selected_game.new
  game.key_validation
end
end

class ExtraGame < TypeOfGame
  def key_validation #changeable_size_board_key_validation
    decimal_number = $board_size/10
    digit = $board_size%10
  if $board_size < 10
    /^[A-#{($board_size + 64).chr}]([1-#{$board_size}])$/
  elsif ($board_size >= 10 && $board_size < 27) #pojedyncze litery
    /^([A-#{($board_size + 64).chr}])([1-9]|[1-#{decimal_number}][0-#{digit}])$/
  else #podwojne litery np 30 = 26 + 4 = [A][A - D] = 30 - 26 = 4
    first_letter = ((($board_size / 26.3).to_i) + 64).chr
    second_letter = ((($board_size % 26.3).round) + 64).chr
    /^([A-Z]|[A-#{first_letter}][A-#{second_letter}])([1-9]|[1-#{decimal_number}][0-#{digit}])$/
  end
  end
end

class ClassicGame < TypeOfGame
def key_validation#standard_board_size_key_validation
  /^[A-J]([1-9]|10)$/
end
end