202 lines
5.0 KiB
HTML
202 lines
5.0 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta http-equiv="X-UA-Compatible" content="IE=edge">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>红包雨</title>
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</head>
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<style>
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* {
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margin: 0;
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padding: 0;
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}
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body {
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height: 100%;
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position: relative;
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height: 100vh;
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overflow: hidden;
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}
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img {
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width: 80px;
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position: absolute;
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}
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.alert {
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position: fixed;
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width: 100%;
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height: 100%;
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background: #0000008f;
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display: flex;
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align-items: center;
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justify-content: center;
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z-index: 8;
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}
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.alert .alert_warp {
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width: 32%;
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background: #fff;
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height: 300px;
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padding: 15px;
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box-sizing: border-box;
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display: flex;
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flex-direction: column;
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}
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.alert_warp .alert_title {
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display: flex;
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justify-content: space-between;
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height: 45px;
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align-items: center;
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border-bottom: 1px solid #e6e6e6;
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}
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.alert_title span {}
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.alert_body {
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flex: 1;
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display: flex;
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align-items: center;
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justify-content: center;
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}
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.hidden {
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display: none;
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}
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</style>
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<body>
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<div class="alert hidden">
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<div class="alert_warp">
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<div class="alert_title">
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<span>恭喜中奖</span>
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<span class="close">x</span>
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</div>
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<div class="alert_body">
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恭喜抽中9折优惠券
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</div>
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</div>
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</div>
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</body>
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<script>
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//随机生成红包+红包移动
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//点击开红包，红包点击时间，暂停红包，关闭弹窗时红包重新运动
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var clientWidth = $("body").clientWidth, // 获取屏幕宽度
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clientHeight = $("body").clientHeight, // 获取屏幕高度
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alert = $(".alert"),
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text = $(".alert_body"),
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close = $(".alert_title .close"),
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clickImg = null,// 保存你点击的图片的虚拟dom对象
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body = $('body'),
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createdId = null;// 保存创建红包的定时器
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//var x = parseInt(Math.random() * (clientWidth - 80))//随机获取x坐标
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//创建红包方法
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function createdHb() {
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var x = parseInt(Math.random() * (clientWidth - 80))
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var img = document.createElement('img'); //创建红包时间和地址
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img.src = './hb.png'
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img.style = `
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left :${x}px;
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top:-105px;
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`
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//点击弹窗
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img.onclick = function () {
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clickImg = img;
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probability()
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alert.classList.remove("hidden")
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// 停止生成红包
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clearInterval(createdId)
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// 停止页面上所有红包
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allImgAction(2)
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// var allImg = document.querySelectorAll('img') //获取所有的图片
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// allImg.forEach(function (v) {
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// clearInterval(v.num)
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// })
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// clearInterval(img.num)
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}
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body.appendChild(img) //插入红包事件
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motion(img)
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//console.log(img);
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}
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function motion(el) {
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// 设置定时器让红包移动起来
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el.num = setInterval(function () {
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var topSet = parseInt(el.style.top) + 1
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el.style.top = `${topSet}px`
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// 超过屏幕高度删除
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if (topSet > clientHeight) {
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$("body").removeChild(el)
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clearInterval(el.num)
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}
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}, 6)
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}
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//关闭弹窗
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close.onclick = function () {
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// 删除你点击的红包
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$("body").removeChild(clickImg)
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alert.classList.add("hidden")
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// var allImg = document.querySelectorAll('img') //获取所有的图片
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// allImg.forEach(function (v) {
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// motion(v)
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//})
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// 让页面上的其他红包重新运动起来
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allImgAction(1)
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// 开始重新创建红包
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autoCreated()
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// 计算概率
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}
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function probability() {
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var prob = Math.random();
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if (prob <= 0.021) {
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text.innerText = `${prob}恭喜您中了 1 折优惠券`
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} else if (0.021 < prob && prob <= 0.8) {
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text.innerText = `${prob}恭喜您中了 7 折优惠券`
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} else if (prob > 0.8) {
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text.innerText = `${prob}恭喜您中了 3 折优惠券`
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}
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}
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function allImgAction(type) {
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var allImg = document.querySelectorAll("img");
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allImg.forEach(function (v) {
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type == 1 ? motion(v) : clearInterval(v.num)
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})
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}
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function autoCreated() {
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createdId = setInterval(function () {
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createdHb()
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}, 1000)
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}
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autoCreated()
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// createdId=setInterval(function () {
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// createdHb()
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// }, 1000)
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function $(className) {
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return document.querySelector(className) //封装统一类名
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}
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</script>
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</html> |