部分源码
<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.lottery-unit-' + this.index).addClass('active');
};
},
roll: function() {
var index = this.index;
var count = this.count;
var lottery = this.obj;
$(lottery).find('.lottery-unit.lottery-unit-' + index).removeClass('active');
index += 1;
if (index > count - 1) {
index = 0;
};
$(lottery).find('.lottery-unit.lottery-unit-' + index).addClass('active');
this.index = index;
return false;
},
stop: function(index) {
this.prize = index;
return false;
}
};
</script>
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