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本篇內容主要講解“怎么用jquery+h5實現九宮格抽獎特效”,感興趣的朋友不妨來看看。本文介紹的方法操作簡單快捷,實用性強。下面就讓小編來帶大家學習“怎么用jquery+h5實現九宮格抽獎特效”吧!
前端:jq+h6 實現九宮格動效
后端:thinkphp3.2.3 實現中獎概率算法
功能:支持讀取數據庫預設的中獎率及獎品池,中獎率可以自定義,必須是整數
最終效果如下:
代碼:
choujiang.html代碼如下:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta name="author" content="武當山道士" /> <title>九宮格抽獎轉盤</title> <style type="text/css"> .container{width:100%;height:auto;line-height: 100%;text-align: center;} #lottery{width:425px;height:425px;margin:auto;background:#e5e5e5;} #lottery table td{width:142px;height:142px;text-align:center;vertical-align:middle;font-size:24px;color:#333;font-index:-999; } /*#lottery table td a{width:284px;height:284px;line-height:150px;display:block;text-decoration:none;}*/ #lottery table td.active{background-color:#fff333;border-radius: 10px;} #start {color:white;background:orange; border-radius: 10px; height:130px; line-height: 130px; width:130px; margin: auto; /*margin: 10% 10% 10% 10%;*/ text-align: center; display: block; text-decoration: none; } #con_prize{display: none;margin-top: 10px;} #pname{color:red;margin-left: 5px;margin-right: 10px;font-size: 20px;} .prize{background:#000 ;opacity: 0.5; height:130px;width: 130px; border-radius: 5px;margin: auto;line-height: 130px; text-shadow: 1px 1px 2px; } .on{opacity: 1;color:#fff;background: #a5a5d1} </style> </head> <body> <div class="container"> <div id="lottery"> <table border="0" cellpadding="0" cellspacing="0" > <tr> <td class="lottery-unit lottery-unit-0"><div class="prize prize-0">安慰獎</div></td> <td class="lottery-unit lottery-unit-1"><div class="prize prize-1">玩具車</div></td> <td class="lottery-unit lottery-unit-2"><div class="prize prize-2">自行車</div></td> </tr> <tr> <td class="lottery-unit lottery-unit-7"><div class="prize prize-7">奧迪</div></td> <td ><a href="#" rel="external nofollow" class = "lottery-unit" id="start">開始抽獎</a></td> <td class="lottery-unit lottery-unit-3"><div class="prize prize-3">電動車</div></td> </tr> <tr> <td class="lottery-unit lottery-unit-6"><div class="prize prize-6">夏利</div></td> <td class="lottery-unit lottery-unit-5"><div class="prize prize-5">拖拉機</div></td> <td class="lottery-unit lottery-unit-4"><div class="prize prize-4">摩托</div></td> </tr> </table> </div> <div id="con_prize" data-pname="長宜太盛100元優惠券" data-pid="1">恭喜您獲得獎品:<span id="pname"></span><button onclick="getPrize()">領取獎品</button></div> </div> <script type="text/javascript" src="jquery-1.11.1.min.js"></script> <script type="text/javascript"> var lottery={ index:-1, //當前轉動到哪個位置,起點位置 count:8, //總共有多少個獎品位置,9宮格就是8個獎品位置 timer:0, //setTimeout的ID,用clearTimeout清除 speed:10, //初始轉動速度 times:0, //轉動次數 cycle:50, //轉動基本次數:即至少需要轉動多少次再進入抽獎環節 prize:0, //默認中獎位置,放默認獎品 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(".prize-"+this.index).addClass("on"); }; }, roll:function(){ var index = this.index; var count = this.count; var lottery = this.obj; $(lottery).find(".prize-"+index).removeClass("on"); index += 1; if (index>count-1) { index = 0; }; $(lottery).find(".prize-"+index).addClass("on"); this.index=index; return false; }, stop:function(index){ this.prize=index; return false; } }; //存儲獎品信息 var prize_data = { pname:'默認獎品', //獎品名稱 pnum:0, //中獎位置 默認0,重要,轉盤據此來定位獲獎商品 pid:1, //獎品id 默認1 }; function roll(){ lottery.times += 1; lottery.roll(); if (lottery.times > lottery.cycle+10 && lottery.prize==lottery.index) { clearTimeout(lottery.timer); lottery.times=0; click=false; //顯示中獎信息 showDetail(); }else{ //速度控制 if (lottery.times<lottery.cycle) { lottery.speed -= 10; }else if(lottery.times==lottery.cycle) { index = lottery.prize; }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; }; //延時遞歸調用 lottery.timer = setTimeout(roll,lottery.speed); } return false; } /* * 獲取中獎位置 * @param {string} name 用戶昵稱(必須) * @param {string} avatar 微信頭像網址(必須) * @param {string} openid 微信openid(必須,用于驗證唯一性,一個用戶只能抽獎一次) * @return {bool} */ function doRoll(url,name,avatar,openid){ $.ajax({ url: url, data:{name:name,avatar:avatar,openid:openid}, async:false,dataType:'json',success: function(rst){ lottery.speed=100; var data = rst.data; lottery.prize = data.pnum; prize_data = { pname:data.pname, pnum:data.pnum, pid:data.pid }; roll(); click=true; return false; }}); } //領獎(跳轉收貨地址頁面,或者彈出收貨地址頁面) function getPrize(){ alert("請填寫收貨地址"); } //清空中獎信息 function clearDetail(){ $("#con_prize").hide(); $("#pname").html(""); } //顯示中獎信息 function showDetail(){ $("#con_prize").show(); $("#pname").html(prize_data.pname); } var click=false; window.function(){ var url = 'http://test.com/api/Shop/ex/';//這里改成實際后臺抽獎接口 lottery.init('lottery'); $("#start").click(function(){ if (click) { return false; }else{ clearDetail(); doRoll(url,"name","avatar","openid"); } }); }; </script> </body> </html>
thinkphp接口代碼如下:
namespace Api\Controller; use Think\Controller; class ShopController Extends Controller{ /** * 抽獎后臺接口 * @author 武當山道士 */ public function ex(){ $nick = I('nick','','trim'); $avatar = I('avatar','','trim'); $openid = I('openid','','trim'); //if(empty($nick)) $this->error('empty nick'); //if(empty($avatar)) $this->error('empty avatar'); //if(empty($openid)) $this->error('empty openid'); /*自己封裝的error函數,正常應該這樣寫: $this->ajaxReturn(array( 'data'=>'', 'info'=>$info, 'status'=>$status ));*/ //初始化獎品池,8個獎品,滿概率100,最小概率為1(id,name以實際數據庫取出的數據為準,percent之和等于100) $arr8 = array( array("id"=>1,"name"=>"安慰獎","percent"=>69), array("id"=>2,"name"=>"玩具車","percent"=>10), array("id"=>3,"name"=>"自行車","percent"=>6), array("id"=>4,"name"=>"電動車","percent"=>5), array("id"=>5,"name"=>"摩托","percent"=>4), array("id"=>6,"name"=>"拖拉機","percent"=>3), array("id"=>7,"name"=>"夏利","percent"=>2), array("id"=>8,"name"=>"奧迪","percent"=>1), ); //下標存儲數組100個下表,0-7 按概率分配對應的數量 $indexArr = array(); for($i=0;$i<sizeof($arr8);$i++){ for($j=0;$j<$arr8[$i]['percent'];$j++){ //index 追加到數組indexArr array_push($indexArr, $i); } } //數組亂序 shuffle($indexArr); //從下標數組中隨機取一個下標作為中獎下標,$rand_index 是$indexArr的隨機元素的下標(0-99) $rand_index = array_rand($indexArr,1); //獲取中獎信息 $prize_index = $indexArr[$rand_index]; $prizeInfo = $arr8[$prize_index]; $data['pnum'] = $prize_index;//對應前端獎品編號 $data['pid'] = $prizeInfo['id']; $data['pname'] = $prizeInfo['name']; $this->success($data);/*自己封裝的success,正常應該這樣寫 $this->ajaxReturn(array( 'data'=>$data, 'info'=>'成功', 'status'=>1 ));*/ } }
到此,相信大家對“怎么用jquery+h5實現九宮格抽獎特效”有了更深的了解,不妨來實際操作一番吧!這里是億速云網站,更多相關內容可以進入相關頻道進行查詢,關注我們,繼續學習!
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