新零售就是企业借助互联网，通过大数据、人工智能等一些手段，对产品的生产、流通以及销售的过程俩进行升级改造，从而可以把线上服务、线下服务以及现代的物流进行深度的融合的新零售模式。
新零售需要全面打通线上线下全渠道数据，将线上的电商渠道要与线下的实体门店渠道变成完整的一体，线上线下拥有统一的商品体系和完整的物流供应链体系，以此来支持全渠道的销售，并满足不同渠道、不同服务的要求。
//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;
})();
/*
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<=t<=PI
function pointOnHeart(t){
return new Point(
160*Math.pow(Math.sin(t),3),
130Math.cos(t)-50Math.cos(2t)-20Math.cos(3t)-10Math.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);
