👨🎓 作者：bug菌
🎉简介：在CSDN、掘金等社区优质创作者，全网合计6w粉+，对一切技术都感兴趣，重心偏java方向，目前运营公众号[猿圈奇妙屋]，欢迎小伙伴们的加入，一起秃头。
🚫特别声明：原创不易，转载请附上原文出处链接和本文声明，谢谢配合。
🙏版权声明：文章里可能部分文字或者图片来源于互联网或者百度百科，如有侵权请联系bug菌处理。
一、前言🔥
听说全网都在挑战这个，bug菌火急火燎，马不停蹄送来源码教学教程！快拿去送给你喜欢的那个ta吧。废话不多说，咱们先来看看代码运行效果，是不是你们想要的爱心动画？
如上便是李珣同款爱心，代码都帮大家准备好了，接着往下看！
若你中意的那个ta想拥有与全网不一样的爱心，比如如下，DIY文字版特效爱心，代码也帮你们准备好了，你只需要修改文字部分内容即可！不懂代码的也没关系，我会手把手教学，让你就算看不懂代码也能学会自定义文字！真的超级简单。代码教程我都放在下方了。
二、源代码🔥
如下附上该特效核心代码，请查阅，若有完全免动手不想费力的小伙伴，可以去我的公号【猿圈奇妙屋】拿，直接回复【爱心】，即可拿到可直接运行的爱心动画文件(文件直接现成的哦！)，心动不如行动。
回复后你点击链接再输入提取码，即可拿到一个[heart.zip]的压缩包，你们只需要下载到本地并解压即可，具体解压后得到的文件如下:
文件可直接通过浏览器打开即可实现播放。若要修改自定义文字，你可以通过选择打开方式【记事本】选中[DIY-heart.html]文件，然后找到第36行，具体请看如下截图：
将如下文字，修改成你想要的文字即可！比如如上我设置的就是"致我最爱的崽崽！"展示效果也就如下所示，字跟爱心跳动同频哦。
ok，教学我都基本说完了，如下贴出火爆全网同款的爱心源码，你们只需要将如下全代码复制粘贴保存到一个[xxx.txt]记事本中，然后将[.txt]格式改成[.html]后缀，最后通过浏览器打开即可播放。
源码如下：
<html>
<head>
<meta charset="utf-8">
<title>Love-Heart</title>
<link rel="shortcut icon" href="http://zhouql.vip/images/心.png" type="image/x-icon">
<style>
html,
body {
height: 100%;
padding: 0;
margin: 0;
background: #000;
}
canvas {
position: absolute;
width: 100%;
height: 100%;
}
</style>
</head>
<body>
<canvas id="pinkboard"></canvas>
<script>
var settings = {
particles: {
length: 500,
duration: 2,
velocity: 100,
effect: -0.75,
size: 32,
},
};
(function () { var b = 0; var c = ["ms", "moz", "webkit", "o"]; for (var a = 0; a < c.length && !window.requestAnimationFrame; ++a) { window.requestAnimationFrame = window[c[a] + "RequestAnimationFrame"]; window.cancelAnimationFrame = window[c[a] + "CancelAnimationFrame"] || window[c[a] + "CancelRequestAnimationFrame"] } if (!window.requestAnimationFrame) { window.requestAnimationFrame = function (h, e) { var d = new Date().getTime(); var f = Math.max(0, 16 - (d - b)); var g = window.setTimeout(function () { h(d + f) }, f); b = d + f; return g } } if (!window.cancelAnimationFrame) { window.cancelAnimationFrame = function (d) { clearTimeout(d) } } }());
var Point = (function () {
function Point(x, y) {
this.x = (typeof x !== 'undefined') ? x : 0;
this.y = (typeof y !== 'undefined') ? y : 0;
}
Point.prototype.clone = function () {
return new Point(this.x, this.y);
};
Point.prototype.length = function (length) {
if (typeof length == 'undefined')
return Math.sqrt(this.x * this.x + this.y * this.y);
this.normalize();
this.x *= length;
this.y *= length;
return this;
};
Point.prototype.normalize = function () {
var length = this.length();
this.x /= length;
this.y /= length;
return this;
};
return Point;
})();
var Particle = (function () {
function Particle() {
this.position = new Point();
this.velocity = new Point();
this.acceleration = new Point();
this.age = 0;
}
Particle.prototype.initialize = function (x, y, dx, dy) {
this.position.x = x;
this.position.y = y;
this.velocity.x = dx;
this.velocity.y = dy;
this.acceleration.x = dx * settings.particles.effect;
this.acceleration.y = dy * settings.particles.effect;
this.age = 0;
};
Particle.prototype.update = function (deltaTime) {
this.position.x += this.velocity.x * deltaTime;
this.position.y += this.velocity.y * deltaTime;
this.velocity.x += this.acceleration.x * deltaTime;
this.velocity.y += this.acceleration.y * deltaTime;
this.age += deltaTime;
};
Particle.prototype.draw = function (context, image) {
function ease(t) {
return (--t) * t * t + 1;
}
var size = image.width * ease(this.age / settings.particles.duration);
context.globalAlpha = 1 - this.age / settings.particles.duration;
context.drawImage(image, this.position.x - size / 2, this.position.y - size / 2, size, size);
};
return Particle;
})();
var ParticlePool = (function () {
var particles,
firstActive = 0,
firstFree = 0,
duration = settings.particles.duration;
function ParticlePool(length) {
// create and populate particle pool
particles = new Array(length);
for (var i = 0; i < particles.length; i++)
particles[i] = new Particle();
}
ParticlePool.prototype.add = function (x, y, dx, dy) {
particles[firstFree].initialize(x, y, dx, dy);
// handle circular queue
firstFree++;
if (firstFree == particles.length) firstFree = 0;
if (firstActive == firstFree) firstActive++;
if (firstActive == particles.length) firstActive = 0;
};
ParticlePool.prototype.update = function (deltaTime) {
var i;
// update active particles
if (firstActive < firstFree) {
for (i = firstActive; i < firstFree; i++)
particles[i].update(deltaTime);
}
if (firstFree < firstActive) {
for (i = firstActive; i < particles.length; i++)
particles[i].update(deltaTime);
for (i = 0; i < firstFree; i++)
particles[i].update(deltaTime);
}
// remove inactive particles
while (particles[firstActive].age >= duration && firstActive != firstFree) {
firstActive++;
if (firstActive == particles.length) firstActive = 0;
}
};
ParticlePool.prototype.draw = function (context, image) {
// draw active particles
if (firstActive < firstFree) {
for (i = firstActive; i < firstFree; i++)
particles[i].draw(context, image);
}
if (firstFree < firstActive) {
for (i = firstActive; i < particles.length; i++)
particles[i].draw(context, image);
for (i = 0; i < firstFree; i++)
particles[i].draw(context, image);
}
};
return ParticlePool;
})();
(function (canvas) {
var context = canvas.getContext('2d'),
particles = new ParticlePool(settings.particles.length),
particleRate = settings.particles.length / settings.particles.duration, // particles/sec
time;
// get point on heart with -PI <= t <= PI
function pointOnHeart(t) {
return new Point(
160 * Math.pow(Math.sin(t), 3),
130 * Math.cos(t) - 50 * Math.cos(2 * t) - 20 * Math.cos(3 * t) - 10 * Math.cos(4 * t) + 25
);
}
// creating the particle image using a dummy canvas
var image = (function () {
var canvas = document.createElement('canvas'),
context = canvas.getContext('2d');
canvas.width = settings.particles.size;
canvas.height = settings.particles.size;
// helper function to create the path
function to(t) {
var point = pointOnHeart(t);
point.x = settings.particles.size / 2 + point.x * settings.particles.size / 350;
point.y = settings.particles.size / 2 - point.y * settings.particles.size / 350;
return point;
}
// create the path
context.beginPath();
var t = -Math.PI;
var point = to(t);
context.moveTo(point.x, point.y);
while (t < Math.PI) {
t += 0.01; // baby steps!
point = to(t);
context.lineTo(point.x, point.y);
}
context.closePath();
// create the fill
context.fillStyle = '#ea80b0';
context.fill();
// create the image
var image = new Image();
image.src = canvas.toDataURL();
return image;
})();
// render that thing!
function render() {
// next animation frame
requestAnimationFrame(render);
// update time
var newTime = new Date().getTime() / 1000,
deltaTime = newTime - (time || newTime);
time = newTime;
// clear canvas
context.clearRect(0, 0, canvas.width, canvas.height);
// create new particles
var amount = particleRate * deltaTime;
for (var i = 0; i < amount; i++) {
var pos = pointOnHeart(Math.PI - 2 * Math.PI * Math.random());
var dir = pos.clone().length(settings.particles.velocity);
particles.add(canvas.width / 2 + pos.x, canvas.height / 2 - pos.y, dir.x, -dir.y);
}
// update and draw particles
particles.update(deltaTime);
particles.draw(context, image);
}
// handle (re-)sizing of the canvas
function onResize() {
canvas.width = canvas.clientWidth;
canvas.height = canvas.clientHeight;
}
window.onresize = onResize;
// delay rendering bootstrap
setTimeout(function () {
onResize();
render();
}, 10);
})(document.getElementById('pinkboard'));
</script>
</body>
</html>三、文末🔥
我是bug菌，一名想走👣出大山改变命运的程序猿。接下来的路还很长，都等待着我们去突破、去挑战。来吧，小伙伴们，我们一起加油！未来皆可期，fighting！
最后送大家两句我很喜欢的话，与诸君共勉！
☘️做你想做的人，没有时间限制，只要愿意，什么时候都可以start。
🍀你能从现在开始改变，也可以一成不变，这件事，没有规矩可言，你可以活出最精彩的自己。
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💞鉴于个人经验有限，所有观点及技术研点，如有异议，请直接回复参与讨论(请勿发表攻击言论，谢谢）；
💕版权声明：原创不易，转载请附上原文出处链接和本文声明，版权所有，盗版必究！！！谢谢。
