*2022年圣诞节到来啦，很高兴这次我们又能一起度过~

文章目录

• 一、前言
• 二、跨年烟花
• 三、效果展示
• 五、HTML源码

一、前言

时光荏苒，白驹过隙。

2022这一年又在忙碌中度过了，过去的一年，我们同努力，我们共欢笑，每一次成功都蕴藏着我们辛勤的劳动。

新的一年即将来到，我们不能停滞不前，一味只是骄傲。愿大家与时俱进，拼搏不懈，共创新的辉煌！

借着新年到来的喜庆，给大家分享一个新年烟花的前端代码，快拿着代码展示给你的朋友们看吧！！

转眼间已经到了2022的尾巴，这一年对于国家来说丰富充实,冬奥会在北京举行、中国共产党第二十次全国代表大会召开、社会共同抗击疫情的第三年、我国完成天宫空间站建造……对于我们每一个个体，2022也承载着我们的快乐与悲伤，它是无法替代的。

新的一年马上就要到了，让我们告别2022，迎接2023！

希望2023,全糖去冰。

二、跨年烟花

本文是一篇简单的前端代码，主要内容有HTML，JS，CSS等内容

1. HTML代码
2. JS代码
3. CSS样式
4. 插件等
5. 可根据需求自定义文字
6. 背景音乐
7. 倒计时

三、效果展示

文末有完整的HTML代码，直接复制就能用。接下来我们一起来看看效果吧！！！

倒计时效果展示

2023 字体效果展示

兔圆圆 字体效果展示

五、HTML源码

嫌麻烦？点这里直接下载(无需积分)

1. index.html

烟花，雪花，背景音乐，页面样式在这里实现的哦

CommandsInfoShare

2. index.js

自定义文字在这里实现的哦

 var S = {init: function () {var action = window.location.href,i = action.indexOf('?a=');S.Drawing.init('.canvas');document.body.classList.add('body--ready');if (i !== -1) {S.UI.simulate(decodeURI(action).substring(i + 3));} else {S.UI.simulate('|#countdown 3||2023|兔圆圆||#rectangle|');// S.UI.simulate('|写|尽|千|山|落|笔|是|你|#rectangle|');}S.Drawing.loop(function () {S.Shape.render();});}
};S.Drawing = (function () {var canvas,context,renderFnrequestFrame = window.requestAnimationFrame       ||window.webkitRequestAnimationFrame ||window.mozRequestAnimationFrame    ||window.oRequestAnimationFrame      ||window.msRequestAnimationFrame     ||function(callback) {window.setTimeout(callback, 1000 / 60);};return {init: function (el) {canvas = document.querySelector(el);context = canvas.getContext('2d');this.adjustCanvas();window.addEventListener('resize', function (e) {S.Drawing.adjustCanvas();});},loop: function (fn) {renderFn = !renderFn ? fn : renderFn;this.clearFrame();renderFn();requestFrame.call(window, this.loop.bind(this));},adjustCanvas: function () {canvas.width = window.innerWidth;canvas.height = window.innerHeight;},clearFrame: function () {context.clearRect(0, 0, canvas.width, canvas.height);},getArea: function () {return { w: canvas.width, h: canvas.height };},drawCircle: function (p, c) {context.fillStyle = c.render();context.beginPath();context.arc(p.x, p.y, p.z, 0, 2 * Math.PI, true);context.closePath();context.fill();}}
}());S.UI = (function () {var canvas = document.querySelector('.canvas'),interval,isTouch = false, //('ontouchstart' in window || navigator.msMaxTouchPoints),currentAction,resizeTimer,time,maxShapeSize = 30,firstAction = true,sequence = [],cmd = '#';function formatTime(date) {var h = date.getHours(),m = date.getMinutes(),m = m < 10 ? '0' + m : m;return h + ':' + m;}function getValue(value) {return value && value.split(' ')[1];}function getAction(value) {value = value && value.split(' ')[0];return value && value[0] === cmd && value.substring(1);}function timedAction(fn, delay, max, reverse) {clearInterval(interval);currentAction = reverse ? max : 1;fn(currentAction);if (!max || (!reverse && currentAction < max) || (reverse && currentAction > 0)) {interval = setInterval(function () {currentAction = reverse ? currentAction - 1 : currentAction + 1;fn(currentAction);if ((!reverse && max && currentAction === max) || (reverse && currentAction === 0)) {clearInterval(interval);}}, delay);}}function reset(destroy) {clearInterval(interval);sequence = [];time = null;destroy && S.Shape.switchShape(S.ShapeBuilder.letter(''));}function performAction(value) {var action,value,current;// overlay.classList.remove('overlay--visible');sequence = typeof(value) === 'object' ? value : sequence.concat(value.split('|'));// input.value = '';// checkInputWidth();timedAction(function (index) {current = sequence.shift();action = getAction(current);value = getValue(current);switch (action) {case 'countdown':value = parseInt(value) || 10;value = value > 0 ? value : 10;timedAction(function (index) {if (index === 0) {if (sequence.length === 0) {S.Shape.switchShape(S.ShapeBuilder.letter(''));} else {performAction(sequence);}} else {S.Shape.switchShape(S.ShapeBuilder.letter(index), true);}}, 1000, value, true);break;case 'rectangle':value = value && value.split('x');value = (value && value.length === 2) ? value : [maxShapeSize, maxShapeSize / 2];S.Shape.switchShape(S.ShapeBuilder.rectangle(Math.min(maxShapeSize, parseInt(value[0])), Math.min(maxShapeSize, parseInt(value[1]))));break;case 'circle':value = parseInt(value) || maxShapeSize;value = Math.min(value, maxShapeSize);S.Shape.switchShape(S.ShapeBuilder.circle(value));break;case 'time':var t = formatTime(new Date());if (sequence.length > 0) {S.Shape.switchShape(S.ShapeBuilder.letter(t));} else {timedAction(function () {t = formatTime(new Date());if (t !== time) {time = t;S.Shape.switchShape(S.ShapeBuilder.letter(time));}}, 1000);}break;default:S.Shape.switchShape(S.ShapeBuilder.letter(current[0] === cmd ? 'What?' : current));}}, 2000, sequence.length);}function checkInputWidth(e) {if (input.value.length > 18) {ui.classList.add('ui--wide');} else {ui.classList.remove('ui--wide');}if (firstAction && input.value.length > 0) {ui.classList.add('ui--enter');} else {ui.classList.remove('ui--enter');}}function bindEvents() {document.body.addEventListener('keydown', function (e) {input.focus();if (e.keyCode === 13) {firstAction = false;reset();performAction(input.value);}});canvas.addEventListener('click', function (e) {overlay.classList.remove('overlay--visible');});}function init() {bindEvents();// input.focus();isTouch && document.body.classList.add('touch');}// Initinit();return {simulate: function (action) {performAction(action);}}
}());
S.UI.Tabs = (function () {var tabs = document.querySelector('.tabs'),labels = document.querySelector('.tabs-labels'),triggers = document.querySelectorAll('.tabs-label'),panels = document.querySelectorAll('.tabs-panel');function activate(i) {triggers[i].classList.add('tabs-label--active');panels[i].classList.add('tabs-panel--active');}function bindEvents() {labels.addEventListener('click', function (e) {var el = e.target,index;if (el.classList.contains('tabs-label')) {for (var t = 0; t < triggers.length; t++) {triggers[t].classList.remove('tabs-label--active');panels[t].classList.remove('tabs-panel--active');if (el === triggers[t]) {index = t;}}activate(index);}});}function init() {activate(0);bindEvents();}// Initinit();
}());
S.Point = function (args) {this.x = args.x;this.y = args.y;this.z = args.z;this.a = args.a;this.h = args.h;
};
S.Color = function (r, g, b, a) {this.r = r;this.g = g;this.b = b;this.a = a;
};
S.Color.prototype = {render: function () {return 'rgba(' + this.r + ',' +  + this.g + ',' + this.b + ',' + this.a + ')';}
};
S.Dot = function (x, y) {this.p = new S.Point({x: x,y: y,z: 5,a: 1,h: 0});this.e = 0.07;this.s = true;this.c = new S.Color(255, 255, 255, this.p.a);this.t = this.clone();this.q = [];
};
S.Dot.prototype = {clone: function () {return new S.Point({x: this.x,y: this.y,z: this.z,a: this.a,h: this.h});},_draw: function () {this.c.a = this.p.a;S.Drawing.drawCircle(this.p, this.c);},_moveTowards: function (n) {var details = this.distanceTo(n, true),dx = details[0],dy = details[1],d = details[2],e = this.e * d;if (this.p.h === -1) {this.p.x = n.x;this.p.y = n.y;return true;}if (d > 1) {this.p.x -= ((dx / d) * e);this.p.y -= ((dy / d) * e);} else {if (this.p.h > 0) {this.p.h--;} else {return true;}}return false;},_update: function () {if (this._moveTowards(this.t)) {var p = this.q.shift();if (p) {this.t.x = p.x || this.p.x;this.t.y = p.y || this.p.y;this.t.z = p.z || this.p.z;this.t.a = p.a || this.p.a;this.p.h = p.h || 0;} else {if (this.s) {this.p.x -= Math.sin(Math.random() * 3.142);this.p.y -= Math.sin(Math.random() * 3.142);} else {this.move(new S.Point({x: this.p.x + (Math.random() * 50) - 25,y: this.p.y + (Math.random() * 50) - 25,}));}}}d = this.p.a - this.t.a;this.p.a = Math.max(0.1, this.p.a - (d * 0.05));d = this.p.z - this.t.z;this.p.z = Math.max(1, this.p.z - (d * 0.05));},distanceTo: function (n, details) {var dx = this.p.x - n.x,dy = this.p.y - n.y,d = Math.sqrt(dx * dx + dy * dy);return details ? [dx, dy, d] : d;},move: function (p, avoidStatic) {if (!avoidStatic || (avoidStatic && this.distanceTo(p) > 1)) {this.q.push(p);}},render: function () {this._update();this._draw();}
}
S.ShapeBuilder = (function () {var gap = 13,shapeCanvas = document.createElement('canvas'),shapeContext = shapeCanvas.getContext('2d'),fontSize = 500,fontFamily = 'Avenir, Helvetica Neue, Helvetica, Arial, sans-serif';function fit() {shapeCanvas.width = Math.floor(window.innerWidth / gap) * gap;shapeCanvas.height = Math.floor(window.innerHeight / gap) * gap;shapeContext.fillStyle = 'red';shapeContext.textBaseline = 'middle';shapeContext.textAlign = 'center';}function processCanvas() {var pixels = shapeContext.getImageData(0, 0, shapeCanvas.width, shapeCanvas.height).data;dots = [],pixels,x = 0,y = 0,fx = shapeCanvas.width,fy = shapeCanvas.height,w = 0,h = 0;for (var p = 0; p < pixels.length; p += (4 * gap)) {if (pixels[p + 3] > 0) {dots.push(new S.Point({x: x,y: y}));w = x > w ? x : w;h = y > h ? y : h;fx = x < fx ? x : fx;fy = y < fy ? y : fy;}x += gap;if (x >= shapeCanvas.width) {x = 0;y += gap;p += gap * 4 * shapeCanvas.width;}}return { dots: dots, w: w + fx, h: h + fy };}function setFontSize(s) {shapeContext.font = 'bold ' + s + 'px ' + fontFamily;}function isNumber(n) {return !isNaN(parseFloat(n)) && isFinite(n);}function init() {fit();window.addEventListener('resize', fit);}// Initinit();return {imageFile: function (url, callback) {var image = new Image(),a = S.Drawing.getArea();image.onload = function () {shapeContext.clearRect(0, 0, shapeCanvas.width, shapeCanvas.height);shapeContext.drawImage(this, 0, 0, a.h * 0.6, a.h * 0.6);callback(processCanvas());};image.onerror = function () {callback(S.ShapeBuilder.letter('What?'));}image.src = url;},circle: function (d) {var r = Math.max(0, d) / 2;shapeContext.clearRect(0, 0, shapeCanvas.width, shapeCanvas.height);shapeContext.beginPath();shapeContext.arc(r * gap, r * gap, r * gap, 0, 2 * Math.PI, false);shapeContext.fill();shapeContext.closePath();return processCanvas();},letter: function (l) {var s = 0;setFontSize(fontSize);s = Math.min(fontSize,(shapeCanvas.width / shapeContext.measureText(l).width) * 0.8 * fontSize,(shapeCanvas.height / fontSize) * (isNumber(l) ? 1 : 0.45) * fontSize);setFontSize(s);shapeContext.clearRect(0, 0, shapeCanvas.width, shapeCanvas.height);shapeContext.fillText(l, shapeCanvas.width / 2, shapeCanvas.height / 2);return processCanvas();},rectangle: function (w, h) {var dots = [],width = gap * w,height = gap * h;for (var y = 0; y < height; y += gap) {for (var x = 0; x < width; x += gap) {dots.push(new S.Point({x: x,y: y,}));}}return { dots: dots, w: width, h: height };}};
}());
S.Shape = (function () {var dots = [],width = 0,height = 0,cx = 0,cy = 0;function compensate() {var a = S.Drawing.getArea();cx = a.w / 2 - width / 2;cy = a.h / 2 - height / 2;}return {shuffleIdle: function () {var a = S.Drawing.getArea();for (var d = 0; d < dots.length; d++) {if (!dots[d].s) {dots[d].move({x: Math.random() * a.w,y: Math.random() * a.h});}}},switchShape: function (n, fast) {var size,a = S.Drawing.getArea();width = n.w;height = n.h;compensate();if (n.dots.length > dots.length) {size = n.dots.length - dots.length;for (var d = 1; d <= size; d++) {dots.push(new S.Dot(a.w / 2, a.h / 2));}}var d = 0,i = 0;while (n.dots.length > 0) {i = Math.floor(Math.random() * n.dots.length);dots[d].e = fast ? 0.25 : (dots[d].s ? 0.14 : 0.11);if (dots[d].s) {dots[d].move(new S.Point({z: Math.random() * 20 + 10,a: Math.random(),h: 18}));} else {dots[d].move(new S.Point({z: Math.random() * 5 + 5,h: fast ? 18 : 30}));}dots[d].s = true;dots[d].move(new S.Point({x: n.dots[i].x + cx,y: n.dots[i].y + cy,a: 1,z: 5,h: 0}));n.dots = n.dots.slice(0, i).concat(n.dots.slice(i + 1));d++;}for (var i = d; i < dots.length; i++) {if (dots[i].s) {dots[i].move(new S.Point({z: Math.random() * 20 + 10,a: Math.random(),h: 20}));dots[i].s = false;dots[i].e = 0.04;dots[i].move(new S.Point({x: Math.random() * a.w,y: Math.random() * a.h,a: 0.3, //.4z: Math.random() * 4,h: 0}));}}},render: function () {for (var d = 0; d < dots.length; d++) {dots[d].render();}}}
}());
S.init();