Question

所以，我有一个记忆游戏，我必须添加逻辑，当点击两张牌时它们匹配，你只能一次翻转两张牌。所以我必须找到一种跟踪两张翻转牌的方法，任何人都有任何想法我怎么能这样做？我尝试了一个数组，但从未成功，也有两个变量但从未工作过。这是我的JS：

//declare variables
const deck = document.querySelector(".deck");
cp card = document.querySelectorAll(".card");
let cards = [];
// function to convert a nodelist to array from https://stackoverflow.com/questions/3199588/fastest-way-to-convert-javascript-nodelist-to-array
for(var i = card.length; i--; cards.unshift(card[i]));
console.log(cards);



//add event listener for each card
for(var i = 0; i< card.length;i++){
  card[i].addEventListener("click", function(){
    this.classList.toggle("open");
    this.classList.toggle("show");

  });
};

//Call the startGame function to start the game and shuffle cards
window.onload = startGame();


// Shuffle function from http://stackoverflow.com/a/2450976
function shuffle(array) {
    var currentIndex = array.length, temporaryValue, randomIndex;

    while (currentIndex !== 0) {
        randomIndex = Math.floor(Math.random() * currentIndex);
        currentIndex -= 1;
        temporaryValue = array[currentIndex];
        array[currentIndex] = array[randomIndex];
        array[randomIndex] = temporaryValue;
    }

    return array;
}

//shuffle cards
function startGame() {
  shuffle(cards).forEach(function(item) {
    deck.appendChild(item);
  });
}

html是16个div，有16个卡和8个符号，2个卡共享一个符号

<!doctype html>
<html lang="en">
<head>
    <meta charset="utf-8">
    <title>Matching Game</title>
    <meta name="description" content="">
    <link rel="stylesheet prefetch" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.6.1/css/font-awesome.min.css">
    <link rel="stylesheet prefetch" href="https://fonts.googleapis.com/css?family=Coda">
    <link rel="stylesheet" href="css/app.css">
</head>
<body>

    <div class="container">
        <header>
            <h1>Matching Game</h1>
        </header>

        <section class="score-panel">
            <ul class="stars">
                <li><i class="fa fa-star"></i></li>
                <li><i class="fa fa-star"></i></li>
                <li><i class="fa fa-star"></i></li>
            </ul>

            <span class="moves"></span> Moves

            <div class="restart">
                <i class="fa fa-repeat"></i>
            </div>
        </section>

        <ul class="deck">
            <li class="card">
                <i class="fa fa-diamond"></i>
            </li>
            <li class="card">
                <i class="fa fa-paper-plane-o"></i>
            </li>
            <li class="card">
                <i class="fa fa-anchor"></i>
            </li>
            <li class="card">
                <i class="fa fa-bolt"></i>
            </li>
            <li class="card">
                <i class="fa fa-cube"></i>
            </li>
            <li class="card">
                <i class="fa fa-anchor"></i>
            </li>
            <li class="card">
                <i class="fa fa-leaf"></i>
            </li>
            <li class="card">
                <i class="fa fa-bicycle"></i>
            </li>
            <li class="card">
                <i class="fa fa-diamond"></i>
            </li>
            <li class="card">
                <i class="fa fa-bomb"></i>
            </li>
            <li class="card">
                <i class="fa fa-leaf"></i>
            </li>
            <li class="card">
                <i class="fa fa-bomb"></i>
            </li>
            <li class="card">
                <i class="fa fa-bolt"></i>
            </li>
            <li class="card">
                <i class="fa fa-bicycle"></i>
            </li>
            <li class="card">
                <i class="fa fa-paper-plane-o"></i>
            </li>
            <li class="card">
                <i class="fa fa-cube"></i>
            </li>
        </ul>
    </div>

    <script src="js/app.js"></script>
</body>
</html>

如何跟踪点击的卡片？S

0 个答案: