//运动曲线
$.extend(jQuery.easing , {

    easeIn: function(x,t, b, c, d){  //加速曲线
        return c*(t/=d)*t + b;
    },
    easeOut: function(x,t, b, c, d){  //减速曲线
        return -c *(t/=d)*(t-2) + b;
    },
    easeBoth: function(x,t, b, c, d){  //加速减速曲线
        if ((t/=d/2) < 1) {
            return c/2*t*t + b;
        }
        return -c/2 * ((--t)*(t-2) - 1) + b;
    },
    easeInStrong: function(x,t, b, c, d){  //加加速曲线
        return c*(t/=d)*t*t*t + b;
    },
    easeOutStrong: function(x,t, b, c, d){  //减减速曲线
        return -c * ((t=t/d-1)*t*t*t - 1) + b;
    },
    easeBothStrong: function(x,t, b, c, d){  //加加速减减速曲线
        if ((t/=d/2) < 1) {
            return c/2*t*t*t*t + b;
        }
        return -c/2 * ((t-=2)*t*t*t - 2) + b;
    },
    elasticIn: function(x,t, b, c, d, a, p){  //正弦衰减曲线（弹动渐入）
        if (t === 0) {
            return b;
        }
        if ( (t /= d) == 1 ) {
            return b+c;
        }
        if (!p) {
            p=d*0.3;
        }
        if (!a || a < Math.abs(c)) {
            a = c;
            var s = p/4;
        } else {
            var s = p/(2*Math.PI) * Math.asin (c/a);
        }
        return -(a*Math.pow(2,10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )) + b;
    },
    elasticOut: function(x,t, b, c, d, a, p){    //正弦增强曲线（弹动渐出）
        if (t === 0) {
            return b;
        }
        if ( (t /= d) == 1 ) {
            return b+c;
        }
        if (!p) {
            p=d*0.3;
        }
        if (!a || a < Math.abs(c)) {
            a = c;
            var s = p / 4;
        } else {
            var s = p/(2*Math.PI) * Math.asin (c/a);
        }
        return a*Math.pow(2,-10*t) * Math.sin( (t*d-s)*(2*Math.PI)/p ) + c + b;
    },
    elasticBoth: function(x,t, b, c, d, a, p){
        if (t === 0) {
            return b;
        }
        if ( (t /= d/2) == 2 ) {
            return b+c;
        }
        if (!p) {
            p = d*(0.3*1.5);
        }
        if ( !a || a < Math.abs(c) ) {
            a = c;
            var s = p/4;
        }
        else {
            var s = p/(2*Math.PI) * Math.asin (c/a);
        }
        if (t < 1) {
            return - 0.5*(a*Math.pow(2,10*(t-=1)) *
                Math.sin( (t*d-s)*(2*Math.PI)/p )) + b;
        }
        return a*Math.pow(2,-10*(t-=1)) *
            Math.sin( (t*d-s)*(2*Math.PI)/p )*0.5 + c + b;
    },
    backIn: function(x,t, b, c, d, s){     //回退加速（回退渐入）
        if (typeof s == 'undefined') {
            s = 1.70158;
        }
        return c*(t/=d)*t*((s+1)*t - s) + b;
    },
    backOut: function(x,t, b, c, d, s){
        if (typeof s == 'undefined') {
            s = 3.70158;  //回缩的距离
        }
        return c*((t=t/d-1)*t*((s+1)*t + s) + 1) + b;
    },
    backBoth: function(x,t, b, c, d, s){
        if (typeof s == 'undefined') {
            s = 1.70158;
        }
        if ((t /= d/2 ) < 1) {
            return c/2*(t*t*(((s*=(1.525))+1)*t - s)) + b;
        }
        return c/2*((t-=2)*t*(((s*=(1.525))+1)*t + s) + 2) + b;
    },
    bounceIn: function(x,t, b, c, d){    //弹球减振（弹球渐出）
        return c - this['bounceOut'](x,d-t, 0, c, d) + b;
    },
    bounceOut: function(x,t, b, c, d){
        if ((t/=d) < (1/2.75)) {
            return c*(7.5625*t*t) + b;
        } else if (t < (2/2.75)) {
            return c*(7.5625*(t-=(1.5/2.75))*t + 0.75) + b;
        } else if (t < (2.5/2.75)) {
            return c*(7.5625*(t-=(2.25/2.75))*t + 0.9375) + b;
        }
        return c*(7.5625*(t-=(2.625/2.75))*t + 0.984375) + b;
    },
    bounceBoth: function(x,t, b, c, d){
        if (t < d/2) {
            return this['bounceIn'](x,t*2, 0, c, d) * 0.5 + b;
        }
        return this['bounceOut'](x,t*2-d, 0, c, d) * 0.5 + c*0.5 + b;
    }

});

/*
	 向右循环 5,6,7,8,9->4,
		  5,6,7,8,9->4
*/
/*
 	小白点   5,6,7,8,9->4,3,2,1,0,1,2,3,4,
 		 5,6,7,8,9->4,3,2,1,0,1,2,3,4
 */
function autoMove(json){
	if(!json){return;}
	var oUl = json.parent.find('.list ul');
	var oOl = json.parent.find('.navigation');
	var oWord = json.parent.find('.word');
	var oPrev = json.parent.find('.prev');
	var oNext = json.parent.find('.next');
	
	
	
	
	var oLiWidth = json.ew;//每一张图片的宽度
	var oLiLenstart = oUl.find('li').length;//起始li的length
	var timer = null;
	var bok = false;//开关，防止点击过快
	
	//一张图片不运动
	if(oLiLenstart==1){return;}
	
	oWord.css({
		left:(json.parent.width() - 1200)/2
	})
	
	
	oOl.find('li').eq(0).addClass('active');
	oWord.find('li').eq(0).addClass('active');
	
	
	//ul内容复制一份
	oUl.get(0).innerHTML += oUl.get(0).innerHTML;
	var oConLiLen = oUl.find('li').length;//复制之后li的个数
	oUl.css({width:oConLiLen * oLiWidth,left:-oLiLenstart * oLiWidth});  //ul的宽度
	oUl.find('li').css({width:oLiWidth});           //li的宽度
	
	var current = oLiLenstart;//当前的值-5
	
	function tab(n){
		oUl.stop().animate({left:-n * oLiWidth},400,"easeBothStrong",function(){
			if(n == oConLiLen - 1){//9--4
				current = oLiLenstart-1;
			}else if(n == 0){//0-5
				current = oLiLenstart;
			}
			//console.log(current)
			oUl.css({left:-current * oLiWidth});
			bok = false;
		});
		oOl.find('li').eq(n%oLiLenstart).addClass('active').siblings('li').removeClass('active');
		oWord.find('li').eq(n%oLiLenstart).addClass('active').siblings('li').removeClass('active');
	};
	
	//自动播放
	function auto(){
		clearInterval(timer);
		timer = setInterval(function(){
			current++;
			tab(current);
		},4000);
	};
	auto();
	
	//向右
	oNext.on('click',function(){
		if(bok){return;}
		bok = true;
		current++;
		tab(current);
	});
	//向左
	oPrev.on('click',function(){
		if(bok){return;}
		bok = true;
		current--;
		tab(current);
	});
	
	//整个区域鼠标移入停止自动播放，移出继续
	json.parent.on({
		mouseenter: function(){
			clearInterval(timer);
		},
		mouseleave: function(){
			auto();
		}
	});
	
	//小白点运动
	oOl.css({marginLeft:-(oOl.width() / 2)});
	oOl.find('li').on('click',function(){
		if(current >= oLiLenstart){//开始current为5，非点击最后一个运动
			current = $(this).index() + oLiLenstart;
			tab(current);
		}else{//点击最后一个之后,9--4，小于oLiLenstart，再点击其他的小白点，就为0,1,2,3,4
			current = $(this).index();
			tab(current);
		}
	});
	
	
	
};