react实现红包雨抢红包效果代码-html代码-BFW代码库

代码语言：html
所属分类：红包
代码描述：react实现红包雨抢红包效果代码
下面为部分代码预览，完整代码请点击下载或在bfwstudio webide中打开
<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">

<style>
    div {
  margin: 0;
  padding: 0;
}
@-webkit-keyframes heartBeat {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
  100% {
    transform: scale(1.05);
  }
}
@keyframes heartBeat {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
  100% {
    transform: scale(1.05);
  }
}
@-webkit-keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}
@-webkit-keyframes zoomIn {
  from {
    opacity: 0;
    transform: scale3d(0.3, 0.3, 0.3);
  }
  50% {
    opacity: 1;
  }
}
@keyframes zoomIn {
  from {
    opacity: 0;
    transform: scale3d(0.3, 0.3, 0.3);
  }
  50% {
    opacity: 1;
  }
}
@-webkit-keyframes tada {
  0,
  10%,
  20% {
    transform: rotate3d(0, 0, 1, -3deg);
  }
  30%,
  50%,
  70%,
  90% {
    transform: rotate3d(0, 0, 1, 3deg);
  }
  40%,
  60%,
  80% {
    transform: rotate3d(0, 0, 1, -3deg);
  }
  to {
    transform: scale3d(1, 1, 1);
  }
}
@keyframes tada {
  0,
  10%,
  20% {
    transform: rotate3d(0, 0, 1, -3deg);
  }
  30%,
  50%,
  70%,
  90% {
    transform: rotate3d(0, 0, 1, 3deg);
  }
  40%,
  60%,
  80% {
    transform: rotate3d(0, 0, 1, -3deg);
  }
  to {
    transform: scale3d(1, 1, 1);
  }
}
html,
body {
  padding: 0;
  margin: 0;
  width: 100%;
  height: 100%;
}
#app {
  width: 100%;
  height: 100%;
  background-image: url(//repo.bfw.wiki/bfwrepo/image/5de084d231193.png);
}
.countdown {
  position: absolute;
  z-index: 1;
  text-align: center;
  font-size: 14px;
  color: #fff;
  display: flex;
  width: 100%;
  margin-top: 50px;
  flex-direction: column;
  align-items: center;
  font-weight: 600;
  line-height: 24px;
}
.countdown .count {
  font-size: 24px;
  color: #FFB800;
  font-weight: 700;
}
.hongBaoWrap {
  position: absolute;
  z-index: 2;
  top: 50%;
  left: 50%;
  transform: translate3d(-50%, -50%, 100px);
}
.hongBaoWrap .hongBao {
  position: relative;
  background: #db2647;
  border-radius: 8px;
  width: 146px;
  height: 215px;
  text-align: center;
  overflow: hidden;
}
.hongBaoWrap .hongBao.toda {
  -webkit-animation-duration: 1s;
          animation-duration: 1s;
  -webkit-animation-fill-mode: both;
          animation-fill-mode: both;
  -webkit-animation-iteration-count: infinite;
          animation-iteration-count: infinite;
  -webkit-animation-name: tada;
          animation-name: tada;
}
.hongBaoWrap .hongBao.active {
  -webkit-animation-duration: 0.1s;
          animation-duration: 0.1s;
  -webkit-animation-fill-mode: both;
          animation-fill-mode: both;
  -webkit-animation-name: heartBeat;
          animation-name: heartBeat;
}
.hongBaoWrap .hongBao .cover {
  position: absolute;
  z-index: 1;
  border-radius: 50%;
  background: #FE2C55;
  width: 365px;
  height: 300px;
  bottom: 65px;
  left: 0;
  transform: translateX(-109.5px);
  background: linear-gradient(to left, #fb3b4a 0, #fb4162 50%, #fb3b4a 100%);
  box-shadow: 0px 1px 5px rgba(0, 0, 0, 0.2);
}
.hongBaoWrap .hongBao .content {
  position: absolute;
  z-index: 2;
  left: 0;
  text-align: center;
  width: 100%;
  padding-top: 20px;
}
.hongBaoWrap .hongBao .content .title {
  color: #FFF0CD;
  font-size: 14px;
  line-height: 24px;
  font-weight: 800;
}
.hongBaoWrap .hongBao .content .count {
  height: 30px;
  color: #FFF0CD;
  font-size: 30px;
  line-height: 30px;
  font-size: 40px;
  margin-top: 32px;
  font-weight: 900;
  -webkit-animation-duration: 0.5s;
          animation-duration: 0.5s;
  -webkit-animation-fill-mode: both;
          animation-fill-mode: both;
}
.hongBaoWrap .hongBao .btn {
  -webkit-user-select: none;
     -moz-user-select: none;
      -ms-user-select: none;
          user-select: none;
  cursor: pointer;
  display: block;
  width: 56px;
  height: 56px;
  font-size: 24px;
  line-height: 56px;
  color: #FB3D64;
  font-weight: 800;
  border-radius: 50%;
  position: absolute;
  z-index: 1;
  bottom: 35px;
  left: 50%;
  transform: translateX(-50%);
  background: radial-gradient(50% 50% at 50% 50%, #FFD76F 0%, #FFE5A3 100%);
  box-shadow: 0px 1px 5px rgba(0, 0, 0, 0.2);
}
.hongBaoWrap .hongBao .btn .border {
  position: absolute;
  z-index: 1;
  top: 2px;
  left: 2px;
  width: 52px;
  height: 52px;
  border: 1px solid #FFB800;
  box-sizing: border-box;
  border-radius: 50%;
}
.trailer {
  width: 400px;
  height: 430px;
  position: absolute;
  z-index: 1;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  background-image: url(//repo.bfw.wiki/bfwrepo/images/hongbao/hognbaoyu.png);
  background-repeat: no-repeat;
  background-size: cover;
}
.trailer.active .count {
  -webkit-animation-iteration-count: 1;
          animation-iteration-count: 1;
  -webkit-animation-name: zoomIn;
          animation-name: zoomIn;
}
.trailer .count {
  display: inline-block;
  font-size: 60px;
  font-weight: bold;
  margin-top: 285px;
  background: linear-gradient(0deg, #ff7300, #fadf00);
  -webkit-background-clip: text;
          background-clip: text;
  color: transparent;
  -webkit-animation-duration: 1s;
          animation-duration: 1s;
  -webkit-animation-fill-mode: both;
          animation-fill-mode: both;
}
</style>
</head>

<body>
    <!-- partial:index.partial.html -->
    <div id="app"></div>
    <!-- partial -->
<script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/react.production.16.13.js"></script>
<script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/react-dom.production.16.13.js"></script>
<script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/classnames.2.3.1.js"></script>
    <script>
        "use strict";
const base64Url = '//repo.bfw.wiki/bfwrepo/images/hongbao/hongbao.png';
const { useState, useRef, useEffect, useCallback } = React;
const classnames = classNames;
function useInterval(fn, delay, options) {
    const immediate = options === null || options === void 0 ? void 0 : options.immediate;
    const fnRef = useRef(fn);
    fnRef.current = fn;
    useEffect(() => {
        if (typeof delay !== 'number' || delay <= 0)
            return;
        if (immediate) {
            fnRef.current();
        }
        const timer = setInterval(() => {
            fnRef.current();
        }, delay);
        return () => {
            clearInterval(timer);
        };
    }, [delay]);
}
function getRandom(min, max) {
    if (min > max) {
        [min, max] = [max, min];
    }
    const num = Math.random() * (max - min) + min;
    return Number(num.toFixed(2));
}
function loadImage(url) {
    return new Promise((resolve, reject) => {
        let img = new Image();
        img.src = url;
        img.onload = () => resolve(img);
        img.onerror = () => reject(new Error("load image error!"));
    });
}
const velX = 1.8; // 水平速度（每帧）
const velRatio = Math.tan(60 * Math.PI / 180); // 垂直速度/水平速度
const config = {
    maxScale: 2,
    baseWidth: 50,
    baseHeight: 50,
    velX: velX,
    velY: velX * velRatio, // 垂直方向移动速度
};
const area = 120 * 120; // 红包占位，控制红包雨密度
class Drop {
    constructor(img, canvasRef) {
        this.canvasRef = canvasRef;
        const scale = getRandom(1, config.maxScale);
        this.width = co.........完整代码请登录后点击上方下载按钮下载查看