def adding_snake(self, game_display):
        if self.food.x_food and self.food.y_food == self.snake.position_list:
            self.snake.add_snake = True
            pygame.draw.rect(game_display, self.snake.snake_color,
                         (self.snake.position_list.x, self.snake.position_list.y,
                          self.snake.snake_size, self.snake.snake_size,))
            self.snake.position_list.append()