我违反了 DRY 请帮助我吗？

Question

我正在制作一个二十一点模拟游戏，我想像在赌场一样发牌，

即所有玩家都发一张牌，庄家得到一张面朝下的牌，玩家得到另一张牌，庄家得到一张面朝上的牌，

但是看我违反了规定干：（如何重做？？

void BlackJack::newHand()
{
    resetHands();

    for (unsigned int i = 0; i < players.size(); i++)
        players[i]->addCard(deck->nextCard());

    Card* c = deck->nextCard();
    c->setVisible(false); // dealer gets a face down card
    dealer->addCard(c);

    for (unsigned int i = 0; i < players.size(); i++)
        players[i]->addCard(deck->nextCard());

    dealer->addCard(deck->nextCard());
}

Answer 1

将重复的代码移到另一个函数中：

void BlackJack::addDealerCard(bool visible) {
    Card* c = deck->nextCard();
    c->setVisible(visible); 
    dealer->addCard(c);
}

void BlackJack::addCards() {
     for (unsigned int i = 0; i < players.size(); i++)
        players[i]->addCard(deck->nextCard());
}

void BlackJack::newHand() {
    resetHands();

    addCards();    
    addDealerCard(false);

    addCards();    
    addDealerCard(true);
}

Answer 2

    void BlackJack::newHand()
    {
        resetHands();

        dealToPlayers();

        Card* c = deck->nextCard();
        c->setVisible(false); // dealer gets a face down card
        dealer->addCard(c);

        dealToPlayers();

        dealer->addCard(deck->nextCard());
    }

    void BlackJack::dealToPlayers()
    {
         for (unsigned int i = 0; i < players.size(); i++)
            players[i]->addCard(deck->nextCard());
    }