參考 okeyl.com
<code class="language-plaintext hljs"><!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>新年快樂</title>
<style>
body{
? overflow: hidden;
? margin: 0;
}
h1{
? position: fixed;
? top: 30%;
? left: 0;
? width: 100%;
? text-align: center;
? transform:translateY(-50%);
? font-family: 'Love Ya Like A Sister', cursive;
? font-size: 60px;
? color: ff64d9;
? padding: 0 20px;
}
h1 span{
? position: fixed;
? left: 0;
? width: 100%;
? text-align: center;
margin-top:30px;
? ? font-size:40px;
}
</style>
</head>
<body>
<h1 id="h1"></h1>
<canvas></canvas>
<script>
var canvas = document.querySelector("canvas"),
? ctx = canvas.getContext("2d");
var ww,wh;
function onResize(){
? ww = canvas.width = window.innerWidth;
? wh = canvas.height = window.innerHeight;
}
ctx.strokeStyle = "red";
ctx.shadowBlur = 25;
ctx.shadowColor = "hsla(0, 100%, 60%,0.5)";
var precision = 100;
var hearts = [];
var mouseMoved = false;
function onMove(e){
? mouseMoved = true;
? if(e.type === "touchmove"){
? ? hearts.push(new Heart(e.touches[0].clientX, e.touches[0].clientY));
? ? hearts.push(new Heart(e.touches[0].clientX, e.touches[0].clientY));
? }
? else{
? ? hearts.push(new Heart(e.clientX, e.clientY));
? ? hearts.push(new Heart(e.clientX, e.clientY));
? }
}
var Heart = function(x,y){
? this.x = x || Math.random()*ww;
? this.y = y || Math.random()*wh;
? this.size = Math.random()*2 + 1;
? this.shadowBlur = Math.random() * 10;
? this.speedX = (Math.random()+0.2-0.6) * 8;
? this.speedY = (Math.random()+0.2-0.6) * 8;
? this.speedSize = Math.random()*0.05 + 0.01;
? this.opacity = 1;
? this.vertices = [];
? for (var i = 0; i < precision; i++) {
? ? var step = (i / precision - 0.5) * (Math.PI * 2);
? ? var vector = {
? ? ? x : (15 * Math.pow(Math.sin(step), 3)),
? ? ? y : -(13 * Math.cos(step) - 5 * Math.cos(2 * step) - 2 * Math.cos(3 * step) - Math.cos(4 * step))
? ? }
? ? this.vertices.push(vector);
? }
}
Heart.prototype.draw = function(){
? this.size -= this.speedSize;
? this.x += this.speedX;
? this.y += this.speedY;
? ctx.save();
? ctx.translate(-1000,this.y);
? ctx.scale(this.size, this.size);
? ctx.beginPath();
? for (var i = 0; i < precision; i++) {
? ? var vector = this.vertices[i];
? ? ctx.lineTo(vector.x, vector.y);
? }
? ctx.globalAlpha = this.size;
? ctx.shadowBlur = Math.round((3 - this.size) * 10);
? ctx.shadowColor = "hsla(0, 100%, 60%,0.5)";
? ctx.shadowOffsetX = this.x + 1000;
? ctx.globalCompositeOperation = "screen"
? ctx.closePath();
? ctx.fill()
? ctx.restore();
};
function render(a){
? requestAnimationFrame(render);
? hearts.push(new Heart())
? ctx.clearRect(0,0,ww,wh);
? for (var i = 0; i < hearts.length; i++) {
? ? hearts[i].draw();
? ? if(hearts[i].size <= 0){
? ? ? hearts.splice(i,1);
? ? ? i--;
? ? }
? }
}
onResize();
window.addEventListener("mousemove", onMove);
window.addEventListener("touchmove", onMove);
window.addEventListener("resize", onResize);
requestAnimationFrame(render);
window.onload=function starttime(){
? ? ? ? time(h1,'2023,01,01');? ? // 2023年元旦時(shí)間
? ? ? ? ptimer = setTimeout(starttime,1000); // 添加計(jì)時(shí)器
}
? ? function time(obj,futimg){
? ? ? ? var nowtime = new Date().getTime(); // 現(xiàn)在時(shí)間轉(zhuǎn)換為時(shí)間戳
? ? ? ? var futruetime =? new Date(futimg).getTime(); // 未來時(shí)間轉(zhuǎn)換為時(shí)間戳
? ? ? ? var msec = futruetime-nowtime; // 毫秒 未來時(shí)間-現(xiàn)在時(shí)間
? ? ? ? var time = (msec/1000);? // 毫秒/1000
? ? ? ? var day = parseInt(time/86400); // 天? 24*60*60*1000
? ? ? ? var hour = parseInt(time/3600)-24*day;? ? // 小時(shí) 60*60 總小時(shí)數(shù)-過去的小時(shí)數(shù)=現(xiàn)在的小時(shí)數(shù)
? ? ? ? var minute = parseInt(time%3600/60); // 分 -(day*24) 以60秒為一整份 取余 剩下秒數(shù) 秒數(shù)/60 就是分鐘數(shù)
? ? ? ? var second = parseInt(time%60);? // 以60秒為一整份 取余 剩下秒數(shù)
? ? ? ? obj.innerHTML="<br>距離2023年還有：<br>"+day+"天"+hour+"小時(shí)"+minute+"分"+second+"秒"+"<br><span>平安喜樂<br>萬事順?biāo)?lt;/span>"
? ? ? ? return true;
? ? }
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版權(quán)聲明：本文為CSDN博主「roakcom」的原創(chuàng)文章，遵循CC 4.0 BY-SA版權(quán)協(xié)議，轉(zhuǎn)載請附上原文出處鏈接及本聲明。
原文鏈接：https://blog.csdn.net/roakcom/article/details/128574673
