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~function (){
var zhufengEffect = {
//匀速
Linear: function (t, b, c, d) {
return c * t / d + b;
},
//指数衰减的反弹缓动
Bounce: {
easeIn: function (t, b, c, d) {
return c - zhufengEffect.Bounce.easeOut(d - t, 0, c, d) + b;
},
easeOut: function (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 + .75) + b;
} else if (t < (2.5 / 2.75)) {
return c * (7.5625 * (t -= (2.25 / 2.75)) * t + .9375) + b;
} else {
return c * (7.5625 * (t -= (2.625 / 2.75)) * t + .984375) + b;
}
},
easeInOut: function (t, b, c, d) {
if (t < d / 2) {
return zhufengEffect.Bounce.easeIn(t * 2, 0, c, d) * .5 + b;
}
return zhufengEffect.Bounce.easeOut(t * 2 - d, 0, c, d) * .5 + c * .5 + b;
}
},
//二次方的缓动
Quad: {
easeIn: function (t, b, c, d) {
return c * (t /= d) * t + b;
},
easeOut: function (t, b, c, d) {
return -c * (t /= d) * (t - 2) + b;
},
easeInOut: function (t, b, c, d) {
if ((t /= d / 2) < 1) {
return c / 2 * t * t + b;
}
return -c / 2 * ((--t) * (t - 2) - 1) + b;
}
},
//三次方的缓动
Cubic: {
easeIn: function (t, b, c, d) {
return c * (t /= d) * t * t + b;
},
easeOut: function (t, b, c, d) {
return c * ((t = t / d - 1) * t * t + 1) + b;
},
easeInOut: function (t, b, c, d) {
if ((t /= d / 2) < 1) {
return c / 2 * t * t * t + b;
}
return c / 2 * ((t -= 2) * t * t + 2) + b;
}
},
//四次方的缓动
Quart: {
easeIn: function (t, b, c, d) {
return c * (t /= d) * t * t * t + b;
},
easeOut: function (t, b, c, d) {
return -c * ((t = t / d - 1) * t * t * t - 1) + b;
},
easeInOut: function (t, b, c, d) {
if ((t /= d / 2) < 1) {
return c / 2 * t * t * t * t + b;
}
return -c / 2 * ((t -= 2) * t * t * t - 2) + b;
}
},
//五次方的缓动
Quint: {
easeIn: function (t, b, c, d) {
return c * (t /= d) * t * t * t * t + b;
},
easeOut: function (t, b, c, d) {
return c * ((t = t / d - 1) * t * t * t * t + 1) + b;
},
easeInOut: function (t, b, c, d) {
if ((t /= d / 2) < 1) {
return c / 2 * t * t * t * t * t + b;
}
return c / 2 * ((t -= 2) * t * t * t * t + 2) + b;
}
},
//正弦曲线的缓动
Sine: {
easeIn: function (t, b, c, d) {
return -c * Math.cos(t / d * (Math.PI / 2)) + c + b;
},
easeOut: function (t, b, c, d) {
return c * Math.sin(t / d * (Math.PI / 2)) + b;
},
easeInOut: function (t, b, c, d) {
return -c / 2 * (Math.cos(Math.PI * t / d) - 1) + b;
}
},
//指数曲线的缓动
Expo: {
easeIn: function (t, b, c, d) {
return (t == 0) ? b : c * Math.pow(2, 10 * (t / d - 1)) + b;
},
easeOut: function (t, b, c, d) {
return (t == d) ? b + c : c * (-Math.pow(2, -10 * t / d) + 1) + b;
},
easeInOut: function (t, b, c, d) {
if (t == 0) return b;
if (t == d) return b + c;
if ((t /= d / 2) < 1) return c / 2 * Math.pow(2, 10 * (t - 1)) + b;
return c / 2 * (-Math.pow(2, -10 * --t) + 2) + b;
}
},
//圆形曲线的缓动
Circ: {
easeIn: function (t, b, c, d) {
return -c * (Math.sqrt(1 - (t /= d) * t) - 1) + b;
},
easeOut: function (t, b, c, d) {
return c * Math.sqrt(1 - (t = t / d - 1) * t) + b;
},
easeInOut: function (t, b, c, d) {
if ((t /= d / 2) < 1) {
return -c / 2 * (Math.sqrt(1 - t * t) - 1) + b;
}
return c / 2 * (Math.sqrt(1 - (t -= 2) * t) + 1) + b;
}
},
//超过范围的三次方缓动
Back: {
easeIn: function (t, b, c, d, s) {
if (s == undefined) s = 1.70158;
return c * (t /= d) * t * ((s + 1) * t - s) + b;
},
easeOut: function (t, b, c, d, s) {
if (s == undefined) s = 1.70158;
return c * ((t = t / d - 1) * t * ((s + 1) * t + s) + 1) + b;
},
easeInOut: function (t, b, c, d, s) {
if (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;
}
},
//指数衰减的正弦曲线缓动
Elastic: {
easeIn: function (t, b, c, d, a, p) {
if (t == 0) return b;
if ((t /= d) == 1) return b + c;
if (!p) p = d * .3;
var s;
!a || a < Math.abs(c) ? (a = c, s = p / 4) : 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;
},
easeOut: function (t, b, c, d, a, p) {
if (t == 0) return b;
if ((t /= d) == 1) return b + c;
if (!p) p = d * .3;
var s;
!a || a < Math.abs(c) ? (a = c, s = p / 4) : 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);
},
easeInOut: function (t, b, c, d, a, p) {
if (t == 0) return b;
if ((t /= d / 2) == 2) return b + c;
if (!p) p = d * (.3 * 1.5);
var s;
!a || a < Math.abs(c) ? (a = c, s = p / 4) : s = p / (2 * Math.PI) * Math.asin(c / a);
if (t < 1) return -.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) * .5 + c + b;
}
}
};
function move(curEle,target,duration,effect,callback){ //让那个元素运动
var tempEffect = zhufengEffect.Linear;
if(typeof effect == 'number'){
switch (effect) {
case 0:
tempEffect = zhufengEffect.Linear;
break;
case 1:
tempEffect = zhufengEffect.Bounce.easeIn;
break;
case 2:
tempEffect = zhufengEffect.Quart.easeInOut;
}
}else if(effect instanceof Array){
tempEffect = effect.length >=2? zhufengEffect[effect[0]][effect[1]] : zhufengEffect[effect[0]];
}else if(typeof effect == 'function'){ //用来做回调函数
callback = effect;
}
//根据target获取每一个方向的起始值和总距离
//首先清除定时器
window.clearInterval(curEle.zhufengTimer);
var begin = {};
var change = {};
var time = 0;
var interval = 10;
for (var key in target){
if(target.hasOwnProperty(key)){
begin[key] = utils.getCss(curEle,key);
change[key] = target[key] - begin[key];
}
}
curEle.zhufengTimer = window.setInterval(function (){
time += interval;
if(time >= duration){ //到达目标
window.clearInterval(curEle.zhufengTimer);
utils.setGroupCss(curEle,target);
typeof callback == 'function' && callback.call(curEle); //回调函数判断
return;
}
//没到达目标,分别获取每个方向，然后并且设置
for(var key in target){
if(target.hasOwnProperty(key)){
var curPosi = tempEffect(time,begin[key],change[key],duration);
utils.setCss(curEle,key,curPosi);
}
}
},interval);
}
//可以用return返回出来个一个对象，或者直接赋值给window
window.zhufengAnimate = move;
}();