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jQuery微信手机端九宫格抽奖代码特效

2017-09-07 10:45 316 查看
找一些小案例，小特效练手~

1.jQuery微信手机端九宫格抽奖代码特效

<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>jQuery微信手机端九宫格抽奖代码特效</title>

<style type="text/css">
#lottery{width:570px;height:510px;margin:0px auto;border:4px solid #ba1809;}
#lottery table{background-color:yellow;}
#lottery table td{position:relative;width:190px;height:170px;text-align:center;color:#333;font-index:-999}
#lottery table td img{display:block;width:190px;height:170px;}
#lottery table td a{width:190px;height:170px;display:block;text-decoration:none;background:url(img/9.jpg) no-repeat top center;}
#lottery table td a:hover{background-image:url(img/11.jpg);}
#lottery table td.active .mask{display:block;}
.mask{
width:100%;
height:100%;
position:absolute;
left:0;
top:0;
background-color: rgba(252,211,4,0.5);
display:none;
}
</style>

</head>
<body>
<div id="lottery">
<table border="0" cellpadding="0" cellspacing="0">
<tr>
<td class="lottery-unit lottery-unit-0"><img src="img/1.jpg"><div class="mask"></div></td>
<td class="lottery-unit lottery-unit-1"><img src="img/2.jpg"><div class="mask"></div></td>
<td class="lottery-unit lottery-unit-2"><img src="img/3.jpg"><div class="mask"></div></td>
</tr>
<tr>
<td class="lottery-unit lottery-unit-7"><img src="img/4.jpg"><div class="mask"></div></td>
<td><a href="#"></a></td>
<td class="lottery-unit lottery-unit-3"><img src="img/5.jpg"><div class="mask"></div></td>
</tr>
<tr>
<td class="lottery-unit lottery-unit-6"><img src="img/6.jpg"><div class="mask"></div></td>
<td class="lottery-unit lottery-unit-5"><img src="img/7.jpg"><div class="mask"></div></td>
<td class="lottery-unit lottery-unit-4"><img src="img/8.jpg"><div class="mask"></div></td>
</tr>
</table>
</div>

<script src="js/jquery-1.11.0.min.js" type="text/javascript"></script>
<script type="text/javascript">
var lottery={
index:-1,    //当前转动到哪个位置，起点位置
count:0,    //总共有多少个位置
timer:0,    //setTimeout的ID，用clearTimeout清除
speed:20,   //初始转动速度
times:0,    //转动次数
cycle:50,    //转动基本次数：即至少需要转动多少次再进入抽奖环节
prize:-1,    //中奖位置
init:function(id){
if ($("#"+id).find(".lottery-unit").length>0) {
$lottery = $("#"+id);
$units = $lottery.find(".lottery-unit");
this.obj = $lottery;
this.count = $units.length;
$lottery.find(".lottery-unit-"+this.index).addClass("active");
};
},
roll:function(){
var index = this.index;
var count = this.count;
var lottery = this.obj;
$(lottery).find(".lottery-unit-"+index).removeClass("active");
index += 1;
if (index>count-1) {
index = 0;
};
$(lottery).find(".lottery-unit-"+index).addClass("active");
this.index=index;
return false;
},
stop:function(index){
this.prize=index;
return false;
}
};

function roll(){
lottery.times += 1;
lottery.roll();//转动过程调用的是lottery的roll方法，这里是第一次调用初始化
if (lottery.times > lottery.cycle+10 && lottery.prize==lottery.index) {
clearTimeout(lottery.timer);
lottery.prize=-1;
lottery.times=0;
click=false;
}else{
if (lottery.times<lottery.cycle) {
lottery.speed -= 10;
}else if(lottery.times==lottery.cycle) {
var index = Math.random()*(lottery.count)|0;//中奖物品通过一个随机数生成
lottery.prize = index;
}else{
if (lottery.times > lottery.cycle+10 && ((lottery.prize==0 && lottery.index==7) || lottery.prize==lottery.index+1)) {
lottery.speed += 110;
}else{
lottery.speed += 20;
}
}
if (lottery.speed<40) {
lottery.speed=40;
};
//console.log(lottery.times+'^^^^^^'+lottery.speed+'^^^^^^^'+lottery.prize);
lottery.timer = setTimeout(roll,lottery.speed);//循环调用
}
return false;
}

var click=false;

window.onload=function(){
lottery.init('lottery');
$("#lottery a").click(function(){
if (click) {//click控制一次抽奖过程中不能重复点击抽奖按钮，后面的点击不响应
return false;
}else{
lottery.speed=100;
roll();    //转圈过程不响应click事件，会将click置为false
click=true; //一次抽奖完成后，设置click为true，可继续抽奖
return false;
}
});
};
</script>

</body>
</html>
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