需求分析
生成两组顺序随机的1-8数据
卡片需要有翻转效果
两次翻转数据不相等，回复原状
两次翻转数据相等，卡片相等，不能再被点击
当所有卡片不能被点击游戏结束
限制最大点击次数50次
HTML结构
<div class="wrap">
<div>
<p class="top"></p>
<p class="bottom"></p>
</div>
<div>
<p class="top"></p>
<p class="bottom"></p>
</div>
<div>
<p class="top"></p>
<p class="bottom"></p>
</div>
<div>
<p class="top"></p>
<p class="bottom"></p>
</div>
<div>
<p class="top"></p>
<p class="bottom"></p>
</div>
<div>
<p class="top"></p>
<p class="bottom"></p>
</div>
<div>
<p class="top"></p>
<p class="bottom"></p>
</div>
<div>
<p class="top"></p>
<p class="bottom"></p>
</div>
<div>
<p class="top"></p>
<p class="bottom"></p>
</div>
<div>
<p class="top"></p>
<p class="bottom"></p>
</div>
<div>
<p class="top"></p>
<p class="bottom"></p>
</div>
<div>
<p class="top"></p>
<p class="bottom"></p>
</div>
<div>
<p class="top"></p>
<p class="bottom"></p>
</div>
<div>
<p class="top"></p>
<p class="bottom"></p>
</div>
<div>
<p class="top"></p>
<p class="bottom"></p>
</div>
<div>
<p class="top"></p>
<p class="bottom"></p>
</div>
</div>
1
XM代理申请https://www.kaifx.cn/broker/xm.html
css布局
实现卡片翻转效果需要3个关键属性
perspective: 1000px; 透视深度，形成3d视角
transform: rotateY(180deg);旋转
backface-visibility: hidden; 元素背面不可见
* {
margin: 0;
padding: 0;
}
body,
html {
height: 100%;
}
.wrap {
perspective: 1000px;
width: 320px;
height: 320px;
position: absolute;
top: 0;
bottom: 0;
left: 0;
right: 0;
margin: auto;
display: flex;
justify-content: center;
text-align: center;
flex-wrap: wrap;
}
.wrap div {
/* box-shadow: 5px 5px 10px #000; */
transition: 1s;
position: relative;
text-align: center;
line-height: 60px;
height: 60px;
width: 60px;
border-radius: 10px;
margin: 10px 10px;
}
.wrap div .active1 {
transform: rotateY(180deg);
}
.wrap div .active2 {
transform: rotateY(360deg);
}
.wrap p {
border-radius: 10px;
background-color: blueviolet;
transition: 1s;
backface-visibility: hidden;
display: block;
height: 60px;
width: 60px;
position: absolute;
/* transform: rotateY(180deg); */
}
.wrap .bottom {
transform: rotateY(180deg);
}
h3{
text-align: center;
width: 200px;
height: 30px;
margin: 150px auto;
}
js
class Game {
constructor(selector) {
this.init(selector);
}
init(selector) {
let arr = this.randomArr();
this.nodes = [...document.querySelectorAll(selector)];//获取每一个卡片
this.step = 50;//定义可以被点击的次数
this.tit = document.querySelector("h3");
this.nodes.forEach((item,index) => {//初始化卡片的值，并保存在num属性中
item.children[1].innerHTML = arr[index];
item.num = arr[index];
var that = this
item.onclick = function () {//给每一个卡片绑定事件
that.handle(this);
}
})
}
handle(ele) {
if(this.step === 0){
alert('游戏结束')
return
}
if(ele.active !== true){
this.step--;
this.tit.innerText = `剩余步数：${this.step}`
}
ele.children[0].classList.add('active1');//卡片翻转
ele.children[1].classList.add('active2');
let res = this.nodes.filter(item => item.children[0].classList.contains('active1')&& item.active !== true); //获取翻过来的且没有配对成功的卡片
if(res.length === 2 && res[0].num !== res[1].num){//如果有两张并且数值不相等，恢复原状
setTimeout(()=>{
res[0].children[0].classList.remove('active1');
res[0].children[1].classList.remove('active2');
res[1].children[0].classList.remove('active1');
res[1].children[1].classList.remove('active2');
},1000)//延迟一秒形成动画
}else if(res.length === 2 && res[0].num === res[1].num){//如果数值相等则配对成功
res[0].active = true;//锁定卡片
res[1].active = true;
}
}
randomArr() {
let arr = [];
for (let i = 0, n = 8; i < n; i++) {
do {
var item = randomInt(1, 8);
} while (arr.indexOf(item) !== -1)
arr.push(item);
}
arr.push(...arr);
return arr;
}
}
new Game('.wrap div')
function randomInt(min, max) {//产生[min,max]范围内的整数
return Math.round(Math.random() * (max - min)) + min
} |
|
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