jQuery数字摇奖老虎机效果js代码

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以下是 jQuery数字摇奖老虎机效果js代码的示例演示效果:

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HTML代码(index.html):

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>jQuery数字摇奖老虎机效果</title>
<script type="text/javascript" src="js/jquery-1.7.2-min.js"></script>
<script type="text/javascript" src="js/easing.js"></script>
<style>
html,body{margin:0;padding:0;overflow:hidden;}
body{background:url(images/body_bg.jpg) 0px 0px repeat-x #000;}
.main_bg{background:url(images/main_bg.jpg) top center no-repeat;height:1000px;}
.main{width:1000px;height:1000px;position:relative;margin:0 auto;}
.num_mask{background:url(images/num_mask.png) 0px 0px no-repeat;height:184px;width:740px;position:absolute;left:50%;top:340px;margin-left:-370px;z-index:9;}
.num_box{height:450px;width:750px;position:absolute;left:50%;top:340px;margin-left:-370px;z-index:8;overflow:hidden;text-align:center;}
.num{background:url(images/num.png) top center repeat-y;width:181px;height:265px;float:left;margin-right:6px;}
.btn{background:url(images/btn_start.png) 0px 0px no-repeat;width:264px;height:89px;position:absolute;left:50%;bottom:50px;margin-left:-132px;cursor:pointer;clear:both;}
</style>
</head>
<body>
<div class="main_bg">
  <div class="main">
    <div id="res" style="text-align:center;color:#fff;padding-top:15px;"></div>
    <div class="num_mask"></div>
    <div class="num_box">
      <div class="num"></div>
      <div class="num"></div>
      <div class="num"></div>
      <div class="num"></div>
      <div class="btn"></div>
    </div>
  </div>
</div>

<script>
function numRand() {
	var x = 9999; //上限
	var y = 1111; //下限
	var rand = parseInt(Math.random() * (x - y + 1) + y);
	return rand;
}
var isBegin = false;
$(function(){
	var u = 265;
	$('.btn').click(function(){
		if(isBegin) return false;
		isBegin = true;
		$(".num").css('backgroundPositionY',0);
		var result = numRand();
		$('#res').text('摇奖结果 = '+result);
		var num_arr = (result+'').split('');
		$(".num").each(function(index){
			var _num = $(this);
			setTimeout(function(){
				_num.animate({ 
					backgroundPositionY: (u*60) - (u*num_arr[index])
				},{
					duration: 6000+index*3000,
					easing: "easeInOutCirc",
					complete: function(){
						if(index==3) isBegin = false;
					}
				});
			}, index * 300);
		});
	});	
});
</script>
</body>
</html>

JS代码(easing.js):

/* * jQuery Easing v1.3 - http://gsgd.co.uk/sandbox/jquery/easing/ * * Uses the built in easing capabilities added In jQuery 1.1 * to offer multiple easing options * * TERMS OF USE - jQuery Easing * * Open source under the BSD License. * * Copyright © 2008 George McGinley Smith * All rights reserved. * * Redistribution and use in source and binary forms,with or without modification,* are permitted provided that the following conditions are met:* * Redistributions of source code must retain the above copyright notice,this list of * conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice,this list * of conditions and the following disclaimer in the documentation and/or other materials * provided with the distribution. * * Neither the name of the author nor the names of contributors may be used to endorse * or promote products derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY * EXPRESS OR IMPLIED WARRANTIES,INCLUDING,BUT NOT LIMITED TO,THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,INDIRECT,INCIDENTAL,SPECIAL,* EXEMPLARY,OR CONSEQUENTIAL DAMAGES (INCLUDING,BUT NOT LIMITED TO,PROCUREMENT OF SUBSTITUTE * GOODS OR SERVICES;
	LOSS OF USE,DATA,OR PROFITS;
	OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY,WHETHER IN CONTRACT,STRICT LIABILITY,OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,EVEN IF ADVISED * OF THE POSSIBILITY OF SUCH DAMAGE. **/
// t:current time,b:begInnIng value,c:change In value,d:durationjQuery.easing['jswing'] = jQuery.easing['swing'];
	jQuery.extend( jQuery.easing,{
	def:'easeOutQuad',swing:function (x,t,b,c,d){
	//alert(jQuery.easing.default);
	return jQuery.easing[jQuery.easing.def](x,t,b,c,d);
}
,easeInQuad:function (x,t,b,c,d){
	return c*(t/=d)*t + b;
}
,easeOutQuad:function (x,t,b,c,d){
	return -c *(t/=d)*(t-2) + b;
}
,easeInOutQuad:function (x,t,b,c,d){
	if ((t/=d/2) < 1) return c/2*t*t + b;
	return -c/2 * ((--t)*(t-2) - 1) + b;
}
,easeInCubic:function (x,t,b,c,d){
	return c*(t/=d)*t*t + b;
}
,easeOutCubic:function (x,t,b,c,d){
	return c*((t=t/d-1)*t*t + 1) + b;
}
,easeInOutCubic:function (x,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;
}
,easeInQuart:function (x,t,b,c,d){
	return c*(t/=d)*t*t*t + b;
}
,easeOutQuart:function (x,t,b,c,d){
	return -c * ((t=t/d-1)*t*t*t - 1) + b;
}
,easeInOutQuart:function (x,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;
}
,easeInQuint:function (x,t,b,c,d){
	return c*(t/=d)*t*t*t*t + b;
}
,easeOutQuint:function (x,t,b,c,d){
	return c*((t=t/d-1)*t*t*t*t + 1) + b;
}
,easeInOutQuint:function (x,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;
}
,easeInSine:function (x,t,b,c,d){
	return -c * Math.cos(t/d * (Math.PI/2)) + c + b;
}
,easeOutSine:function (x,t,b,c,d){
	return c * Math.sin(t/d * (Math.PI/2)) + b;
}
,easeInOutSine:function (x,t,b,c,d){
	return -c/2 * (Math.cos(Math.PI*t/d) - 1) + b;
}
,easeInExpo:function (x,t,b,c,d){
	return (t==0) ? b:c * Math.pow(2,10 * (t/d - 1)) + b;
}
,easeOutExpo:function (x,t,b,c,d){
	return (t==d) ? b+c:c * (-Math.pow(2,-10 * t/d) + 1) + b;
}
,easeInOutExpo:function (x,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;
}
,easeInCirc:function (x,t,b,c,d){
	return -c * (Math.sqrt(1 - (t/=d)*t) - 1) + b;
}
,easeOutCirc:function (x,t,b,c,d){
	return c * Math.sqrt(1 - (t=t/d-1)*t) + b;
}
,easeInOutCirc:function (x,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;
}
,easeInElastic:function (x,t,b,c,d){
	var s=1.70158;
	var p=0;
	var a=c;
	if (t==0) return b;
	if ((t/=d)==1) return b+c;
	if (!p) p=d*.3;
	if (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;
}
,easeOutElastic:function (x,t,b,c,d){
	var s=1.70158;
	var p=0;
	var a=c;
	if (t==0) return b;
	if ((t/=d)==1) return b+c;
	if (!p) p=d*.3;
	if (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;
}
,easeInOutElastic:function (x,t,b,c,d){
	var s=1.70158;
	var p=0;
	var a=c;
	if (t==0) return b;
	if ((t/=d/2)==2) return b+c;
	if (!p) p=d*(.3*1.5);
	if (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 -.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;
}
,easeInBack:function (x,t,b,c,d,s){
	if (s == undefined) s = 1.70158;
	return c*(t/=d)*t*((s+1)*t - s) + b;
}
,easeOutBack:function (x,t,b,c,d,s){
	if (s == undefined) s = 1.70158;
	return c*((t=t/d-1)*t*((s+1)*t + s) + 1) + b;
}
,easeInOutBack:function (x,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;
}
,easeInBounce:function (x,t,b,c,d){
	return c - jQuery.easing.easeOutBounce (x,d-t,0,c,d) + b;
}
,easeOutBounce: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 + .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;
}
}
,easeInOutBounce:function (x,t,b,c,d){
	if (t < d/2) return jQuery.easing.easeInBounce (x,t*2,0,c,d) * .5 + b;
	return jQuery.easing.easeOutBounce (x,t*2-d,0,c,d) * .5 + c*.5 + b;
}
}
);
	/* * * TERMS OF USE - EASING EQUATIONS * * Open source under the BSD License. * * Copyright © 2001 Robert Penner * All rights reserved. * * Redistribution and use in source and binary forms,with or without modification,* are permitted provided that the following conditions are met:* * Redistributions of source code must retain the above copyright notice,this list of * conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice,this list * of conditions and the following disclaimer in the documentation and/or other materials * provided with the distribution. * * Neither the name of the author nor the names of contributors may be used to endorse * or promote products derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY * EXPRESS OR IMPLIED WARRANTIES,INCLUDING,BUT NOT LIMITED TO,THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,INDIRECT,INCIDENTAL,SPECIAL,* EXEMPLARY,OR CONSEQUENTIAL DAMAGES (INCLUDING,BUT NOT LIMITED TO,PROCUREMENT OF SUBSTITUTE * GOODS OR SERVICES;
	LOSS OF USE,DATA,OR PROFITS;
	OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY,WHETHER IN CONTRACT,STRICT LIABILITY,OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,EVEN IF ADVISED * OF THE POSSIBILITY OF SUCH DAMAGE. * */

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