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20thAnniversary.html
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20thAnniversary.html
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<!DOCTYPE html>
<html lang='en'>
<head>
<meta charset='UTF-8'>
<meta name='viewport' content='width=device-width, initial-scale=1.0'>
<meta http-equiv='X-UA-Compatible' content='ie=edge'>
<title>20年聚会</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
<style>
#main {
width: 95vw;
height: 95vh;
border: 1px solid black;
display: flex;
}
#canvasDiv {
width: 60%;
background-color: peachpuff;
}
#resultDiv {
flex: 1;
display: flex;
flex-direction: column;
background-color: peachpuff;
}
div.head, div.items {
text-align: left;
vertical-align: top;
display: flex;
flex-direction: column;
color: red;
}
div.item {
flex: 1;
text-align: center;
background-color: lemonchiffon;
margin: 0 20%;
color: black;
}
</style>
</head>
<body>
<div id='main'>
<span style="position: absolute; top: 1vh; left: auto;" id="titleSpan">等待选取抽奖等级。</span>
<div id='canvasDiv' style=''>
<!--<canvas id='canvas'></canvas>-->
</div>
<div id="resultDiv" style=''>
<div class="head">
特等奖（1人）：
<button onclick="groupStart(this, 0, 1)">开始抽奖</button>
</div>
<div class="items">
<div class="item"></div>
</div>
<div class="head">
一等奖（2人）：
<button onclick="groupStart(this, 1, 2)">开始抽奖</button>
</div>
<div class="items">
<div class="item"></div>
<div class="item"></div>
</div>
<div class="head">
二等奖（4人）：
<button onclick="groupStart(this, 2, 4)">开始抽奖</button>
</div>
<div class="items">
<div class="item"></div>
<div class="item"></div>
<div class="item"></div>
<div class="item"></div>
</div>
<div class="head">
三等奖（6人）：
<button onclick="groupStart(this, 3, 6)">开始抽奖</button>
</div>
<div class="items">
<div class="item"></div>
<div class="item"></div>
<div class="item"></div>
<div class="item"></div>
<div class="item"></div>
<div class="item"></div>
</div>
</div>
<button style="position: absolute; bottom: 1vh; left: auto;" onclick="init();renderResult();">全部清空</button>
</div>
</body>
<script src='./src/dist/luckyDraw.min.js'></script>
<script>
var init = function () {
window.localStorage.clear();
window.localStorage.setItem('allMembers', [
'陈爱然', '韩凯英', '杨葳', '李楠', '岳明',
'张海燕', '卢彦', '杨忠莹', '刘婧', '常洁',
'p男', '王新峰', '张辉', '王江', '张淼', '肖博',
'张博君', '刘春', '戈志明', '张鹏', '于洋', '齐亚娜'
].join(','));
window.localStorage.setItem('specMember', '魏志强');
$('#main button').show();
$('#titleSpan').text('等待选取抽奖等级。');
};
var shuffle = function(arr) {
var i,
j,
temp;
for (i = arr.length - 1; i > 0; i--) {
j = Math.floor(Math.random() * (i + 1));
temp = arr[i];
arr[i] = arr[j];
arr[j] = temp;
}
return arr;
};
var renderWheel = function () {
var canvasDiv = $('#canvasDiv');
canvasDiv.html("");
canvasDiv.append($('<canvas id="canvas">'));
setTimeout(function () {
var canvas = document.getElementById('canvas'),
context = canvas.getContext('2d');
canvas.width = canvasDiv.width();
canvas.height = canvasDiv.height();
members = shuffle(members);
new RouletteWheel({
centerX: canvas.width / 2,
centerY: canvas.height / 2,
outsideRadius: canvas.height * 0.8 / 2,
awards: members,
duration: 20000,
velocity: 10,
finish: function (index) {
alert('🎉恭喜' + members[index].content + '中奖!!🎉 ');
renderResult(index);
}
}).render(canvas, context);
}, 100);
};
var renderResult = function (selectMemberIndex) {
var lucky = JSON.parse(window.localStorage.getItem("lucky"));
if (lucky === null) {
lucky = {};
}
var drawingInfo = JSON.parse(window.localStorage.getItem("drawingInfo"));
if (drawingInfo === null) {
drawingInfo = {};
}
if(selectMemberIndex !== undefined) {
var selectMember = members[selectMemberIndex];
drawingInfo['remainderNumber'] -= 1;
window.localStorage.setItem('drawingInfo', JSON.stringify(drawingInfo));
if (lucky[drawingInfo['startingGroup']] === undefined) {
lucky[drawingInfo['startingGroup']] = [];
}
lucky[drawingInfo['startingGroup']].push(selectMember.content);
window.localStorage.setItem('lucky', JSON.stringify(lucky));
// 删除中奖人
members.splice(selectMemberIndex, 1);
} else {
$('#canvasDiv').html("");
}
if (drawingInfo.hasOwnProperty('remainderNumber')){
if(drawingInfo['remainderNumber'] > 0){
renderWheel();
} else {
setTimeout(function () {
$('#canvasDiv').html("");
},500);
}
}
$("#resultDiv div.item").remove();
for (var level in lucky) {
$($("#resultDiv div.head")[level]).find("button").hide();
var targetDiv = $("#resultDiv div.items")[level];
if (lucky.hasOwnProperty(level)) {
for (var i = 0; i < lucky[level].length; i++) {
//console.log(lucky[level][i]);
$(targetDiv).append($('<div class="item">').append('🎉' + lucky[level][i] + '🎉'));
}
}
}
};
var groupStart = function (button, group, number) {
$(button).hide();
window.localStorage.setItem('drawingInfo', JSON.stringify({startingGroup: group, remainderNumber: number}));
switch (group) {
case 0:
$('#titleSpan').text('正在抽取特等奖。');
break;
case 1:
$('#titleSpan').text('正在抽取一等奖。');
break;
case 2:
$('#titleSpan').text('正在抽取二等奖。');
break;
case 3:
$('#titleSpan').text('正在抽取三等奖。');
break;
}
renderWheel();
};
if (window.localStorage.getItem('allMembers') === null) {
init();
}
var members = window.localStorage.getItem('allMembers').split(',');
if (Array.isArray(members) && members.length > 0) {
members = members.map(function (member, index, all) {
return {type: 'text', content: member};
})
}
renderResult();
</script>
</html>