jquery九宫格抽奖怎么控制停止位置

发布网友 发布时间：2022-04-21 05:35

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共2个回答

热心网友 时间：2022-04-19 05:55

参考下面代码
<!--效果html开始-->
<div id="lottery">
<table border="0" cellpadding="0" cellspacing="0">
<tr>
<td class="lottery-unit lottery-unit-0"><img src="images/1.png"></td>
<td class="lottery-unit lottery-unit-1"><img src="images/2.png"></td>
<td class="lottery-unit lottery-unit-2"><img src="images/4.png"></td>
<td class="lottery-unit lottery-unit-3"><img src="images/3.png"></td>
</tr>
<tr>
<td class="lottery-unit lottery-unit-11"><img src="images/7.png"></td>
<td colspan="2" rowspan="2"><a href="#"></a></td>
<td class="lottery-unit lottery-unit-4"><img src="images/5.png"></td>
</tr>
<tr>
<td class="lottery-unit lottery-unit-10"><img src="images/1.png"></td>
<td class="lottery-unit lottery-unit-5"><img src="images/6.png"></td>
</tr>
<tr>
<td class="lottery-unit lottery-unit-9"><img src="images/3.png"></td>
<td class="lottery-unit lottery-unit-8"><img src="images/6.png"></td>
<td class="lottery-unit lottery-unit-7"><img src="images/8.png"></td>
<td class="lottery-unit lottery-unit-6"><img src="images/7.png"></td>
</tr>
</table>
</div>

js部分

<script type="text/javascript" src="jquery-1.8.3.min.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();
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);
lottery.timer = setTimeout(roll,lottery.speed);
}
return false;
}

var click=false;

window.onload=function(){
lottery.init('lottery');
$("#lottery a").click(function(){
if (click) {
return false;
}else{
lottery.speed=100;
roll();
click=true;
return false;
}
});
};
</script>