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lottery-turntable

v1.3.6

Published

turntable for lottery

Downloads

16

Readme

抽奖转盘

由于每个抽奖活动的样式都会不一样,因此这个插件只实现了绘画转盘及转盘转动的模块。 点击抽奖按钮,和抽奖转盘的外框则自行实现,可以参考examples里面的例子。

支持IE9以上版本浏览器

示例

示例

安装

npm install lottery-turntable

or

直接下载 https://raw.githubusercontent.com/coffeedeveloper/turntable/master/build/turntable.min.js

接口说明

var turntable = new Turntable({
  size: 320, //转盘尺寸,默认为320
  textSpace: 15, //奖品名称距离转盘边距,默认为15
  imgSpace: 50, //奖品图片距离转盘边距,默认为50
  speed: 5, //触发start事件后,转盘开始转动的速度,数字必须能给360整除
  fastSpeed: 10, //转盘进入高速转动的速度,数字必须能够给360整除
  slowSpeed: 5, //转盘从高速转动降下来的速度,数字必须能够给360整除
  speedUp: 2000, //多少毫秒后进入高速转动
  speedDown: 2000, //触发stop事件后,多少毫秒进入缓速
  values: [], //奖品对象,根据传多少个奖品对象,自动生成相应数量的转盘抽奖内容
  container: document.getElementById('id') //转盘的容器,如果设置了之后,new Turntable的时候会自动填充内容
});

新增支持transition方式

var turntabl = new Turntable({
  type: 'transition', //转盘转动类型
  size: 320, //转盘尺寸,默认为320
  textSpace: 15, //奖品名称距离转盘边距,默认为15
  imgSpace: 50, //奖品图片距离转盘边距,默认为50
  speed: 5, //transition动画持续多长时间,秒为单位
  ring: 8, //转动多少圈后到达终点,越大转速越快
  values: [], //奖品对象,根据传多少个奖品对象,自动生成相应数量的转盘抽奖内容
  container: document.getElementById('id') //转盘的容器,如果设置了之后,new Turntable的时候会自动填充内容
});

turntable的奖品对象说明

var turntable = new Turntable({
  values: [
    {
      id: 1, //奖品id,可以重复(比如:谢谢参与就可以有n个,中奖后会随即选择一个转动到该位置
      name: '一等奖', //奖品名称
      img: {
        src: 'gift.png', //奖品图片路径
        width: 50, //奖品图片宽度,请根据实际情况去设置,避免太大
        height: 50, //奖品图片高度,请根据实际情况去设置,避免太大,与宽度等比率缩放
      },
      bg: '#ccc', //该奖品的在转盘中的扇形背景颜色
      fill: '#000' //奖品名称的文字颜色
    }
  ]
});

turntable事件说明

draw

将转盘实例化到容器当中,如果设置container属性,则不需要调用该方法

turntable.draw(document.getElementById('container'));

start(非transition方式的抽奖)

开始抽奖(开始转动转盘)

turntable.start();

stop(非transition方式的抽奖)

抽奖结束(停止转动转盘)

//id 中奖的奖品id,对应初始化选项里面的values的奖品对象的id
//callback 转盘滚动结束后,触发回调
turntable.stop(id, function(data) {
  console.log(data); //对应在values里面的礼品对象
});

goto(只能用于transition方式的抽奖)

跳转到指定的id的奖品,在请求后台取得中奖奖品id后,就滚动到对应的奖品

//id 中奖的奖品id,对应初始化选项里面的values的奖品对象的id
//callback 转盘滚动结束后,触发回调
turntable.goto(id, function(data) {
  console.log(data); //对应在values里面的礼品对象
});