jQuery实现的实用转盘抽奖程序

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+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; } });};

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