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【html】理工男李峋的极致浪漫：爱心代码｜和你的心跳同频共振

發(fā)布時(shí)間：2024/1/8 编程问答 40 豆豆

生活随笔收集整理的這篇文章主要介紹了【html】理工男李峋的极致浪漫：爱心代码｜和你的心跳同频共振小編覺(jué)得挺不錯(cuò)的,現(xiàn)在分享給大家,幫大家做個(gè)參考.

【寫(xiě)在開(kāi)頭】

不知道發(fā)生什么事了？點(diǎn)我
看到最近《點(diǎn)燃我溫暖你》中男主角——理工男李峋的愛(ài)心代碼撩到了無(wú)數(shù)人，于是把代碼開(kāi)源分享給大家。
哈哈哈，只是長(zhǎng)的比較像，李峋的愛(ài)心代碼你得找李峋去要了

【具體效果】
如下：

【實(shí)現(xiàn)代碼】

<!doctype html> <html> <head> <meta charset="utf-8"> <title>canvas 心</title><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> /** Settings*/ var settings = {particles: {length: 500, // maximum amount of particlesduration: 2, // particle duration in secvelocity: 100, // particle velocity in pixels/seceffect: -0.75, // play with this for a nice effectsize: 30, // particle size in pixels}, };/** RequestAnimationFrame polyfill by Erik M?ller*/ (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)}}}());/** Point class*/ 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; })();/** Particle class*/ 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; })();/** ParticlePool class*/ var ParticlePool = (function() {var particles,firstActive = 0,firstFree = 0,duration = settings.particles.duration;function ParticlePool(length) {// create and populate particle poolparticles = 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 queuefirstFree++;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 particlesif (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 particleswhile (particles[firstActive].age >= duration && firstActive != firstFree) {firstActive++;if (firstActive == particles.length) firstActive = 0;}};ParticlePool.prototype.draw = function(context, image) {// draw active particlesif (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; })();/** Putting it all together*/ (function(canvas) {var context = canvas.getContext('2d'),particles = new ParticlePool(settings.particles.length),particleRate = settings.particles.length / settings.particles.duration, // particles/sectime;// get point on heart with -PI <= t <= PIfunction 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 canvasvar 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 pathfunction 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 pathcontext.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 fillcontext.fillStyle = '#ea80b0';context.fill();// create the imagevar image = new Image();image.src = canvas.toDataURL();return image;})();// render that thing!function render() {// next animation framerequestAnimationFrame(render);// update timevar newTime = new Date().getTime() / 1000,deltaTime = newTime - (time || newTime);time = newTime;// clear canvascontext.clearRect(0, 0, canvas.width, canvas.height);// create new particlesvar 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 particlesparticles.update(deltaTime);particles.draw(context, image);}// handle (re-)sizing of the canvasfunction onResize() {canvas.width = canvas.clientWidth;canvas.height = canvas.clientHeight;}window.onresize = onResize;// delay rendering bootstrapsetTimeout(function() {onResize();render();}, 10); })(document.getElementById('pinkboard'));</script></body> </html>

【修改】

看到其他平臺(tái)還有跳動(dòng)的，我不允許你不會(huì)

簡(jiǎn)單還是原來(lái)的代碼，只不過(guò)要修改style

修改部分代碼如下：

【讀者反饋】
看了評(píng)論，有人人不知道怎么用這個(gè)代碼實(shí)現(xiàn)效果
我來(lái)寫(xiě)一下

1.首先在你的桌面新建 index.txt文件
2. 然后打開(kāi)這個(gè)新建的文件，粘貼我的代碼-保存
3.最后修改文件后綴為.html （這個(gè)地方一定要是 .html 后綴）然后雙擊打開(kāi)即可。。

完結(jié)，撒花~

總結(jié)

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