Effet de commutation coulissant hwSlider-content (2) : glissement tactile réactif

[code=css]
#hwslider{width: 100%;height:auto;min-height: 120px;margin:40px auto; position: relative; overflow: hidden;}
#hwslider ul{width: 100%; height:100%; position: absolute; z-index: 1}
#hwslider ul li{display:none;position:absolute; left:0; top:0; width: 100%;height:100%; overflow: hidden;}
#hwslider ul li.active{display: block;}
#hwslider ul li img{max-width: 100%}
#dots{position: absolute; bottom:20px; left:200px; min-width:60px; height: 12px; z-index: 2;}
#dots span{float: left; width:12px;height: 12px; border: 1px solid #fff; border-radius: 50%; background: #333; margin-right: 8px; cursor: pointer;}
#dots span.active{background:orangered}
.arr{display:none;position: absolute; top: 140px; z-index: 2;width: 40px; height: 40px; line-height: 38px; text-align: center;; font-size: 36px; background: rgba(0,0,0,.3); color: #fff; text-decoration: none}
.arr:hover{background: rgba(0,0,0,.7); text-decoration: none;}
#hwslider:hover .arr{display: block; text-decoration: none;color: #fff}
#prev{left: 20px}
#next{right: 20px}

[code=js]
$(function(){
	var slider = $("#hwslider");
	var dots = $("#dots span"),
		prev = $("#prev"),next = $("#next");
	var sliderInder = slider.children('ul')
	var hwsliderLi = sliderInder.children('li');
	var hwsliderSize = hwsliderLi.length;  //滑块的总个数
	var sliderWidth = 600; //滑块初始宽度
	var sliderHeight = 320; //滑块初始高度
	var index = 1; //初始显示第一个滑块
	var speed = 400; //滑动速度
	var interval = 3000; //间隔时间
	var dotShow = true; //是否显示可切换的导航圆点
	var autoPlay = false; //是否支持自动滑动
	var clickable = true; //是否已经点击了滑块在做滑动动画

	

	//初始化组件
	var resize = function(){
		var sWidth = slider.width();
		var dotWidth = hwsliderSize*20;
		var dotOffset = (sWidth-dotWidth)/2;

		var sHeight = sliderHeight/sliderWidth*sWidth;
		slider.css('height',sHeight); 
		$("#dots").css('left',dotOffset+'px'); //导航圆点位置

		var arrOffset = (sHeight-40)/2;
		$(".arr").css('top',arrOffset+'px'); //导航箭头位置
	}

	resize();

	$(window).resize(function(){
	  resize();
	});

});

[code=css]
var mouseX = 0,
	touchStartY = 0,
	touchStartX = 0;

	hwsliderLi.on({
		//触控开始
		'touchstart': function(e) {
			touchStartY = e.originalEvent.touches[0].clientY;
			touchStartX = e.originalEvent.touches[0].clientX;
		},

		//触控结束
		'touchend': function(e) {
			var touchEndY = e.originalEvent.changedTouches[0].clientY,
				touchEndX = e.originalEvent.changedTouches[0].clientX,
				yDiff = touchStartY - touchEndY,
				xDiff = touchStartX - touchEndX;

			if ( Math.abs( xDiff ) > Math.abs( yDiff ) ) {
		        if ( xDiff > 5 ) {
		        	if(index >= hwsliderSize){
						index = 1;
					}else{
						index += 1;
					}
		            moveTo(index,'next');
		        } else {
		        	if(index == 1){
						index = hwsliderSize;
					}else{
						index -= 1;
					}
		            moveTo(index,'prev');
		        }                       
		    }
			touchStartY = null;
			touchStartX = null;
		},

		//触控移动
		'touchmove': function(e) {
			if(e.preventDefault) { e.preventDefault(); }

		}
	});