旅游开发丨旅游APP开发丨旅游系统开发（案例开发）/详细方案/玩法规则/源码平台

　　新零售是指个人、企业以互联网为依托，通过运用大数据、人工智能等先进技术手段并运用心理学知识，A new retail model that upgrades and transforms the production,circulation,and sales processes of goods,reshapes the business structure and ecosystem,and deeply integrates online services,offline experiences,and modern logistics

　　“新零售”模式打破了线上和线下之前的各自封闭状态，线上线下得以相互融合、取长补短且相互依赖，More functions of transaction and payment are performed online, while offline platforms are usually used as screening and experience platforms,高效物流则将线上线下相连接并与其共同作用形成商业闭环。Under the"new retail"model,consumers can freely travel in an intelligent,efficient,fast,affordable,and enjoyable shopping environment,greatly improving their shopping experience,and thus satisfying the strong desire of young people to upgrade their consumption.

　　//update active particles

　　if(firstActive<firstFree){

　　for(i=firstActive;i<firstFree;i++)

　　particles<i>.update(deltaTime);

　　}

　　if(firstFree&lt;firstActive){

　　for(i=firstActive;i&lt;particles.length;i++)

　　particles<i>.update(deltaTime);

　　for(i=0;i&lt;firstFree;i++)

　　particles<i>.update(deltaTime);

　　}

　　//remove inactive particles

　　while(particles[firstActive].age&gt;=duration&&firstActive!=firstFree){

　　firstActive++;

　　if(firstActive==particles.length)firstActive=0;

　　}

　　};

　　ParticlePool.prototype.draw=function(context,image){

　　//draw active particles

　　if(firstActive&lt;firstFree){

　　for(i=firstActive;i&lt;firstFree;i++)

　　particles<i>.draw(context,image);

　　}

　　if(firstFree&lt;firstActive){

　　for(i=firstActive;i&lt;particles.length;i++)

　　particles<i>.draw(context,image);

　　for(i=0;i&lt;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/sec

　　time;

　　//get point on heart with-PI&lt;=t&lt;=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&lt;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);