ТЕМА: Ruby. Вопросик по массивам.

def lppu_update_top
    # Checks if there are top sprites to manage.
    if !@lppu_sprites_t.empty?
      @lppu_sprites_t.each {|message|
      # Fade In
      if message[2]
        message[0].opacity = [message[0].opacity + 9, 255].min
        message[2] = false if message[0].opacity >= 255
      end
      #message[0].y = 40 #так мы зададим начальную координату. Но надо править дальше
      # Sets target y position and moves sprite.
      if message[4] && !message[4][0].disposed?
        target_y = (message[4][0].y + message[4][0].bitmap.height)#Куда должно поехать след. сообщение
        if message[0].y < target_y && !message[3]
          message[0].y = [message[0].y + @lppu_sprites_t.size, target_y].min#Расстояние между сообщениями
          message[3] = true if message[0].y >= target_y
        end
        message[0].y = [message[0].y + @lppu_sprites_t.size, target_y].min#+32#Расстояние между сообщениями
        message[3] = true if message[0].y >= target_y
      end
      ent = !message[2]
      # Timing display.
      message[1] = [message[1] - 1, 0].max if message == @lppu_sprites_t[0] && ent
      if message[1] <= 0 && message[0].opacity > 0
        # Fade Out
        message[0].opacity = [message[0].opacity - 9, 0].max
        # If message is ready, sets how many pixels to move the other ones up.
        if message[0].opacity <= 0 && @lppu_sprites_t.size > 0
          @lppu_order_y_t = message[0].bitmap.height
          @lppu_order_y_ta = message[0].bitmap.height
        end
      end}
    end
    # Checks for Fix Y flag.
    if (@lppu_order_y_t && (@lppu_order_y_t > 0))
      @lppu_sprites_t.each_with_index {|message, index|
      # Moves the sprite.
        message[0].y -= 1
      # Clears a pixel from the Fix Y count if all sprites were moved.
      @lppu_order_y_t -= 1 if @lppu_sprites_t[index] == @lppu_sprites_t.last
      # If all sprites are in the right position, deletes the first one.
      if @lppu_order_y_t == 0
        @lppu_sprites_t[0][0].dispose
        @lppu_sprites_t.shift
      end}
    end
  end