大转盘设置漂浮物

<!--大转盘-->
<div class="shareLeft">
    <div class="sharePosition">
        <div class="shareBigTitle">
            幸运大转盘
        </div>
    </div>
    <div class="shareBg">
    </div>
    <div class="shareInside">
        <div class="moneybox" id="leafContainer"></div>
        <div class="shareBgTitle"><img src="../img/lottery1.png"></div>
        <div class="turntable">
            <div class="bg"></div>
            <div class="content1">
                <img src="http://cdn.choujiangle.cn/images/prize/default/gift.png" id="fen-img" style="display:none;">
                <img src="http://cdn.choujiangle.cn/images/prize/default/red-packet.png" id="zuliao-img" style="display:none;">
                <img src="http://cdn.choujiangle.cn/images/prize/default/yuanbao2.png" id="baowen-img" style="display:none;">
                <img src="http://cdn.choujiangle.cn/images/prize/default/yuanbao.png" id="yundou-img" style="display:none;">
                <img src="http://cdn.choujiangle.cn/images/prize/default/yuanbao2.png" id="ganlan-img" style="display:none;">
                <img src="http://cdn.choujiangle.cn/images/prize/default/yuanbao3.png" id="yusan-img" style="display:none;">
                <div class="banner">
                    <div class="turnplate">
                        <canvas class="item" id="wheelcanvas" width="422px" height="422px"></canvas>
                        <img class="pointer" src="../img/button.png">
                    </div>
                </div>
            </div>
        </div>
        <div class="chance">
            您还有<span> 1 </span>次机会
        </div>
        <div class="countDownDiv">
            <div class="countDown" id="countDown">
                活动<span class="mainColor">结束</span>倒计时 <span><span class="bg-color">0</span> 天 <span class="bg-color">0</span> 时 <span class="bg-color">0</span> 分 <span class="bg-color">0</span> 秒</span>
            </div>
        </div>
        <div class="activityRulesDiv">
            <div class="activityRules">
                活动规则
            </div>
            <div class="activityRulesText">
                <p><span>活动规则文字</span><img src="../img/message.jpg" style="max-width: 100%;"></p>
            </div>
        </div>
    </div>
    <div class="copyRight">
        提供技术支持
    </div>
</div>
<!--设置漂浮物-->
<div class="settingRow">
    <div class="title1">
        <span>漂浮物</span>
    </div>
    <div class="settingRowRight">
        <div class="settingRadioDiv">
            <div class="settingRadioList settingRadioList2">
                <input type="radio" name='flotageOn' id="flotageOn" checked value="0">
                <label for="flotageOn">开启</label>
            </div>
            <div class="settingRadioList settingRadioList2">
                <input type="radio" name='flotageOn' id="flotageOff" value="1">
                <label for="flotageOff">关闭</label>
            </div>
        </div>
        <div class="flotageDiv">
            <div class="decorate"><img src="//cdn.choujiangle.cn/decorate/huangguan.png" class="el-tooltip item" aria-describedby="el-tooltip-72" tabindex="0"></div>
            <div class="decorate"><img src="//cdn.choujiangle.cn/decorate/xin.png" class="el-tooltip item" aria-describedby="el-tooltip-2729" tabindex="0"></div>
            <div class="decorate"><img src="//cdn.choujiangle.cn/decorate/xuehua.png" class="el-tooltip item" aria-describedby="el-tooltip-7932" tabindex="0"></div>
            <div class="decorate"><img src="//cdn.choujiangle.cn/decorate/jinbi.png" class="el-tooltip item" aria-describedby="el-tooltip-3654" tabindex="0"></div>
            <div class="decorate"><img src="//cdn.choujiangle.cn/decorate/hongbao.png" class="el-tooltip item" aria-describedby="el-tooltip-4565" tabindex="0"></div>
            <div class="decorate"><img src="//cdn.choujiangle.cn/decorate/jiangbei.png" class="el-tooltip item" aria-describedby="el-tooltip-7373" tabindex="0"></div>
            <div class="decorate"><img src="//cdn.choujiangle.cn/decorate/denglong.png" class="el-tooltip item" aria-describedby="el-tooltip-7653" tabindex="0"></div>
            <div class="decorate"><img src="//cdn.choujiangle.cn/decorate/yuanbao.png" class="el-tooltip item" aria-describedby="el-tooltip-6615" tabindex="0"></div>
            <div class="decorate"><img src="//cdn.choujiangle.cn/decorate/aixin.png" class="el-tooltip item" aria-describedby="el-tooltip-2199" tabindex="0"></div>
            <div class="decorate"><img src="//cdn.choujiangle.cn/decorate/denglong2.png" class="el-tooltip item" aria-describedby="el-tooltip-8904" tabindex="0"></div>
        </div>
    </div>
</div>

/**大转盘开始**/
.shareInside {
  overflow: hidden;
  overflow-y: auto;
  height: 513px;
  bottom: 103px;
  left: 26px;
  position: absolute;
  width: 320px;
}
.shareBigTitle {
  position: absolute;
  left: 50%;
  top: 108px;
  transform: translate(-50%, -50%);
  font-size: 16px;
}

.shareContainer {
  display: flex;
  justify-content: space-between;
}
.shareLeft {
  width: 372px;
  height: 744px;
  background: url(../img/phone_bg.png) no-repeat;
  position: relative;
  margin: 30px auto;
}
.sharePosition {
  width: 100%;
  text-align: center;
  font-size: 18px;
}

.shareBg {
  position: absolute;
  top: 128px;
  width: 320px;
  background: url(../img/dzp1-bg.png) no-repeat;
  background-size: 100% 100%;
  bottom: 103px;
  left: 26px;
}

.shareBgTitle {
  text-align: center;
}
.shareBgTitle img {
  width: 75%;
  margin-top: 25px;
}
.turntable {
  width: 252px;
  height: 252px;
  margin: -20px auto 0;
}
.turntable .zhuanpan {
  -webkit-transition: -webkit-transform 6s ease;
  transition: -webkit-transform 6s ease;
  transition: transform 6s ease;
  transition: transform 6s ease, -webkit-transform 6s ease;
  -webkit-transition: transform 6s ease;
}
@-webkit-keyframes xuanzhuan {
  from {
    -webkit-transform: rotate(0turn);
    transform: rotate(0turn);
    -webkit-transition: rotate(0turn);
  }
  to {
    -webkit-transform: rotate(1turn);
    transform: rotate(1turn);
    -webkit-transition: rotate(1turn);
  }
}
@keyframes xuanzhuan {
  from {
    -webkit-transform: rotate(0turn);
    transform: rotate(0turn);
    -webkit-transition: rotate(0turn);
  }
  to {
    -webkit-transform: rotate(1turn);
    transform: rotate(1turn);
    -webkit-transition: rotate(1turn);
  }
}
.turntable .bg {
  width: 100%;
  height: 100%;
  background: url(../img/turntable-outer-bg2.png) no-repeat;
  background-size: cover;
  -webkit-animation: xuanzhuan 5s linear infinite;
  animation: xuanzhuan 5s linear infinite;
  margin-top: 41px;
}
.banner {
  width: 240px;
  height: 240px;
  position: absolute;
  left: 50%;
  top: 238px;
  overflow: hidden;
  transform: translate(-50%, -50%);
}
.banner .turnplate {
  display: block;
  width: 100%;
  position: relative;
}
.banner .turnplate canvas.item {
  width: 100%;
}
.banner .turnplate img.pointer {
  position: absolute;
  width: 56px;
  left: 50%;
  top: 47%;
  transform: translate(-50%, -50%);
}
#sbtn {
  position: absolute;
  top: 85%;
  text-align: center;
  width: 100%;
}
#sbtn img {
  width: 24%;
  margin: 0 20px;
}
.content1 {
  width: 0px;
  height: 0px;
}

.chance {
  margin: 10px auto 0px;
  color: #fff;
  width: 157px;
  text-align: center;
  font-size: 14px;
  background-color: #fea603;
  border-radius: 1rem;
  height: 26px;
  line-height: 26px;
  letter-spacing: 0.05rem;
}
.countDownDiv {
  overflow: hidden;
  margin: 10px auto;
  width: 278px;
  height: 48px;
}
.countDown {
  height: 47px;
  line-height: 47px;
  background-color: #fff;
  margin: 0 auto;
  text-align: center;
  border-radius: 5px;
  color: #5d6a73;
  font-size: 12px;
}
.countDown .mainColor {
  color: #fa3d3e;
}
.bg-color {
  background-color: #fa3d3e;
  color: #fff;
  border-radius: 3px;
  padding: 2px 5px;
}
.copyRight {
  height: 26px;
  line-height: 26px;
  text-align: center;
  color: #999;
  background: #f9f9f9;
  position: absolute;
  width: calc(100% - 52px);
  background-size: 100% 100%;
  bottom: 103px;
  left: 26px;
  font-size: 12px;
}
.shareBtn {
  display: flex;
  justify-content: center;
}
.activityRulesDiv {
  margin: 40px auto 40px;
  font-size:14px;
  border: 3px solid #ffff96;
  background-color: #fff;
  width: 246px;
  border-radius:3px;
}
.activityRules {
  background: url(../img/activityRulesBg.png) no-repeat;
  background-size: 100% 100%;
  text-align: center;
  width: 60%;
  height: 30px;
  margin: -20px auto 0;
}
.activityRulesText {
  padding: 10px 5px;
}
#leafContainer {
    position: absolute;
    width: 100%;
  height: calc(100% - 26px);
  overflow: hidden;
}

#leafContainer > div {
    position: absolute;
    width:20px;
  height: 20px;
  z-index: 999;
    -webkit-animation-iteration-count: infinite, infinite;
    -webkit-animation-direction: normal, normal;
    -webkit-animation-timing-function: linear, ease-in;
}
#leafContainer > div > img {
    position: absolute;
    width: 20px;
    height: 20px;
    -webkit-animation-iteration-count: infinite;
    -webkit-animation-direction: alternate;
    -webkit-animation-timing-function: ease-in-out;
    -webkit-transform-origin: 50% -100%;
}
@-webkit-keyframes fade {
 0% {
opacity: 1;
}
 95% {
opacity: 1;
}
 100% {
opacity: 0;
}
}
@-webkit-keyframes drop {
 0% {
-webkit-transform: translate(0px, -50px);
}
 100% {
-webkit-transform: translate(0px, 650px);
}
}
@-webkit-keyframes clockwiseSpin {
 0% {
-webkit-transform: rotate(-50deg);
}
 100% {
-webkit-transform: rotate(50deg);
}
}
@-webkit-keyframes counterclockwiseSpinAndFlip {
 0% {
-webkit-transform: scale(-1, 1) rotate(50deg);
}
 100% {
-webkit-transform: scale(-1, 1) rotate(-50deg);
}
}
/**大转盘结束**/
.settingRow {
  display: flex;
  align-items: baseline;
  align-content: center;
  justify-content: flex-start;
  margin-bottom: 10px;
}
.settingRowRight {
  width: 719px;
}
.title1 {
  width: 120px;
  margin: 0px !important;
  font-size: 14px;
  color: #333;
  line-height: 30px;
}
.settingRadioDiv {
  display: flex;
  align-items: center;
  margin: 10px 0;
  width: 100%;
  height: 20px;
  line-height: 20px;
}
.settingRadioList {
  display: flex;
  align-items: center;
  margin: 0px 20px 0px 0px;
}
.flotageDiv {
  height: 110px;
  background: #ffffff;
  border: 1px solid #e3e4e9;
  overflow: hidden;
}
 .decorate {
  float:left;
  cursor: pointer;
  padding: 5px;
  margin-bottom: 3px;
}
.decorate:hover{
  background-color: #DCEFFB;
  border-radius: 2px;
}
.decorate img {
  width: 24px;
  height: 24px;
  border:none;
}

//大转盘活动
var turnplate = {
    restaraunts: [],                //大转盘奖品名称
    colors: [],                 //大转盘奖品区块对应背景颜色
    outsideRadius: 192,         //大转盘外圆的半径
    textRadius: 155,                //大转盘奖品位置距离圆心的距离
    insideRadius: 30,           //大转盘内圆的半径
    startAngle: 0,              //开始角度
    bRotate: false              //false:停止;ture:旋转
};
$(document).ready(function () {
    //动态添加大转盘的奖品与奖品区域背景颜色
    turnplate.restaraunts = ["20积分", "足疗机", "20积分", "保温杯", "20积分", "电熨斗", "20积分 ", "橄榄油", "20积分"];
    turnplate.colors = ["#d7d7d7", "#fef43e", "#ef7683", "#d7d7d7", "#fef43e", "#ef7683", "#d7d7d7", "#fef43e", "#ef7683",];
    var rotateTimeOut = function () {
        $('#wheelcanvas').rotate({
            angle: 0,
            animateTo: 2160,
            duration: 8000,
            callback: function () {
                alert('网络超时，请检查您的网络设置！');
            }
        });
    };
    //旋转转盘 item:奖品位置; txt：提示语;
    var rotateFn = function (item, txt) {
        var angles = item * (360 / turnplate.restaraunts.length) - (360 / (turnplate.restaraunts.length * 2));
        if (angles < 270) {
            angles = 270 - angles;
        } else {
            angles = 360 - angles + 270;
        }
        $('#wheelcanvas').stopRotate();
        $('#wheelcanvas').rotate({
            angle: 0,
            animateTo: angles + 1800,
            duration: 8000,
            callback: function () {
                //中奖提示
                alert(txt);
                turnplate.bRotate = !turnplate.bRotate;
            }
        });
    };
    $('.pointer').click(function () {
        if (turnplate.bRotate) return;
        turnplate.bRotate = !turnplate.bRotate;
        //获取随机数(奖品个数范围内)
        var item = rnd(1, turnplate.restaraunts.length);
        //奖品数量等于10,指针落在对应奖品区域的中心角度[252, 216, 180, 144, 108, 72, 36, 360, 324, 288]
        rotateFn(item, turnplate.restaraunts[item - 1]);
    });
});
function rnd(n, m) {
    n = 1;//最小随机数
    m = 100;//最大随机数（概率范围最大值）
    //最大数数不超过最大随机数
    var ransluck = [50, 60, 65, 70, 75, 80, 85, 90, 95, 100];//概率为比自己小的第一个数之间的差
    var randoms = Math.floor(Math.random() * (m - n + 1) + n);
    if (randoms <= ransluck[0]) {
        var random = 1;
    }
    else if (randoms <= ransluck[1]) {
        var random = 2;
    }
    else if (randoms <= ransluck[2]) {
        var random = 3;
    }
    else if (randoms <= ransluck[3]) {
        var random = 4;
    }
    else if (randoms <= ransluck[4]) {
        var random = 5;
    }
    else if (randoms <= ransluck[5]) {
        var random = 6;
    }
    else if (randoms <= ransluck[6]) {
        var random = 7;
    }
    else if (randoms <= ransluck[7]) {
        var random = 8;
    }
    else if (randoms <= ransluck[8]) {
        var random = 9;
    }
    else if (randoms <= ransluck[9]) {
        var random = 10;
    }
    return random;

}
//页面所有元素加载完毕后执行drawRouletteWheel()方法对转盘进行渲染
window.onload = function () {
    drawRouletteWheel();
};
function drawRouletteWheel() {
    var canvas = document.getElementById("wheelcanvas");
    if (canvas.getContext) {
        //根据奖品个数计算圆周角度
        var arc = Math.PI / (turnplate.restaraunts.length / 2);
        var ctx = canvas.getContext("2d");
        //在给定矩形内清空一个矩形
        ctx.clearRect(0, 0, 422, 422);
        //strokeStyle 属性设置或返回用于笔触的颜色、渐变或模式
        ctx.strokeStyle = "#FFBE04";
        //font 属性设置或返回画布上文本内容的当前字体属性
        ctx.font = '20px Microsoft YaHei';
        for (var i = 0; i < turnplate.restaraunts.length; i++) {
            var angle = turnplate.startAngle + i * arc;
            ctx.fillStyle = turnplate.colors[i];
            ctx.beginPath();
            //arc(x,y,r,起始角,结束角,绘制方向) 方法创建弧/曲线（用于创建圆或部分圆）
            ctx.arc(211, 211, turnplate.outsideRadius, angle, angle + arc, false);
            ctx.arc(211, 211, turnplate.insideRadius, angle + arc, angle, true);
            ctx.stroke();
            ctx.fill();
            //锁画布(为了保存之前的画布状态)
            ctx.save();
            //----绘制奖品开始----
            ctx.fillStyle = "#000";
            var text = turnplate.restaraunts[i];
            var line_height = 17;
            //translate方法重新映射画布上的 (0,0) 位置
            ctx.translate(211 + Math.cos(angle + arc / 2) * turnplate.textRadius, 211 + Math.sin(angle + arc / 2) * turnplate.textRadius);
            //rotate方法旋转当前的绘图
            ctx.rotate(angle + arc / 2 + Math.PI / 2);
            /** 下面代码根据奖品类型、奖品名称长度渲染不同效果，如字体、颜色、图片效果。(具体根据实际情况改变) **/
            if (text.indexOf("M") > 0) {//流量包
                var texts = text.split("M");
                for (var j = 0; j < texts.length; j++) {
                    ctx.font = j == 0 ? 'bold 12px Microsoft YaHei' : '16px Microsoft YaHei';
                    if (j == 0) {
                        ctx.fillText(texts[j] + "M", -ctx.measureText(texts[j] + "M").width / 2, j * line_height);
                    } else {
                        ctx.fillText(texts[j], -ctx.measureText(texts[j]).width / 2, j * line_height);
                    }
                }
            } else if (text.indexOf("M") == -1 && text.length > 6) {//奖品名称长度超过一定范围
                text = text.substring(0, 6) + "||" + text.substring(6);
                var texts = text.split("||");
                for (var j = 0; j < texts.length; j++) {
                    ctx.fillText(texts[j], -ctx.measureText(texts[j]).width / 2, j * line_height);
                }
            } else {
                //在画布上绘制填色的文本。文本的默认颜色是黑色
                //measureText()方法返回包含一个对象，该对象包含以像素计的指定字体宽度
                ctx.fillText(text, -ctx.measureText(text).width / 2, 0);
            }
            //添加对应图标
            if (text.indexOf("分") > 0) {
                var img = document.getElementById("fen-img");
                img.onload = function () {
                    ctx.drawImage(img, -18, 25, 36, 36);
                };
                ctx.drawImage(img, -18, 25, 36, 36);
            } else if (text.indexOf("足疗") >= 0) {
                var img = document.getElementById("zuliao-img");
                img.onload = function () {
                    ctx.drawImage(img, -18, 25, 36, 36);
                };
                ctx.drawImage(img, -18, 25, 36, 36);
            }
            else if (text.indexOf("保温") >= 0) {
                var img = document.getElementById("baowen-img");
                img.onload = function () {
                    ctx.drawImage(img, -18, 25, 36, 36);
                };
                ctx.drawImage(img, -18, 25, 36, 36);
            }
            else if (text.indexOf("电熨斗") >= 0) {
                var img = document.getElementById("yundou-img");
                img.onload = function () {
                    ctx.drawImage(img, -18, 25, 36, 36);
                };
                ctx.drawImage(img, -18, 25, 36, 36);
            }
            else if (text.indexOf("橄榄") >= 0) {
                var img = document.getElementById("ganlan-img");
                img.onload = function () {
                    ctx.drawImage(img, -18, 25, 36, 36);
                };
                ctx.drawImage(img, -18, 25, 36, 36);
            }
            else if (text.indexOf("雨伞") >= 0) {
                var img = document.getElementById("yusan-img");
                img.onload = function () {
                    ctx.drawImage(img, -18, 25, 36, 36);
                };
                ctx.drawImage(img, -18, 25, 36, 36);
            }

            //把当前画布返回（调整）到上一个save()状态之前
            ctx.restore();
            //----绘制奖品结束----
        }
    }
}
//大转盘倒计时
const fourthOfJuly = new Date("July 4, 2021 12:00:00").getTime();
let timer = setInterval(function () {
    const today = new Date().getTime();
    const diff = fourthOfJuly - today;
    let days = Math.floor(diff / (1000 * 60 * 60 * 24));
    let hours = Math.floor((diff % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
    let minutes = Math.floor((diff % (1000 * 60 * 60)) / (1000 * 60));
    let seconds = Math.floor((diff % (1000 * 60)) / 1000);
    document.getElementById("countDown").innerHTML = ' 活动<span class="mainColor">结束</span>倒计时 <span><span class="bg-color">' + days + '</span> 天 <span class="bg-color">' + hours + '</span> 时 <span class="bg-color">' + minutes + '</span> 分 <span class="bg-color">' + seconds + '</span> 秒</span></div>'
}, 1000);
//漂浮物
const NUMBER_OF_LEAVES = 80;
const width = window.screen.width;
function randomInteger(low, high) {
    return low + Math.floor(Math.random() * (high - low));
}
function randomFloat(low, high) {
    return low + Math.random() * (high - low);
}
function pixelValue(value) {
    return value + 'px';
}

function durationValue(value) {
    return value + 's';
}
function createALeaf() {
    var leafDiv = document.createElement('div');
    var image = document.createElement('img');
    image.src = '//cdn.choujiangle.cn/decorate/huangguan.png';
    image.src = '';
    leafDiv.style.top = "-100px";
    leafDiv.style.left = pixelValue(randomInteger(0, width));
    var spinAnimationName = (Math.random() < 0.5) ? 'clockwiseSpin' : 'counterclockwiseSpinAndFlip';
    leafDiv.style.webkitAnimationName = 'fade, drop';
    image.style.webkitAnimationName = spinAnimationName;
    image.className = 'mask';
    var fadeAndDropDuration = durationValue(randomFloat(3, 9));
    var spinDuration = durationValue(randomFloat(3, 7));
    leafDiv.style.webkitAnimationDuration = fadeAndDropDuration + ', ' + fadeAndDropDuration;
    var leafDelay = durationValue(randomFloat(0, 0));
    leafDiv.style.webkitAnimationDelay = leafDelay + ', ' + leafDelay;
    image.style.webkitAnimationDuration = spinDuration;
    leafDiv.appendChild(image);
    leafDiv.className = "maskDiv";
    return leafDiv;
}
function strat() {
    var container = document.getElementById('leafContainer');
    for (var i = 0; i < NUMBER_OF_LEAVES; i++) {
        container.appendChild(createALeaf());
    }
}
$("body").on("click", ".decorate img", function () {
    var radioVal = $("input[name='flotageOn']:checked").val()
    if (radioVal == 0) {
        strat()
        $(".mask").attr("src", $(this).prop("src"))
    }
})
$(':radio[name="flotageOn"]').on('click', function () {
    if ($(this).val() == 1) {
        $(".maskDiv").css("display", 'none')
    }
})