<td><a href="#"></a></td>
<td class="lottery-unit lottery-unit-3"><img src="images/gift3.jpg"><div class="mask"></div></td>
</tr>
<tr>
<td class="lottery-unit lottery-unit-6"><img src="images/gift6.jpg"><div class="mask"></div></td>
<td class="lottery-unit lottery-unit-5"><img src="images/gift5.jpg"><div class="mask"></div></td>
<td class="lottery-unit lottery-unit-4"><img src="images/gift4.jpg"><div class="mask"></div></td>
</tr>
</table>
</div>
<script src="http://code.jquery.com/jquery-latest.js"></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;
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);
