/**
* Class Shake
* @class
* @classdesc 九宫格翻纸牌组件逻辑部分
* @author pfan
*
* @example
* new Shake(this,{
* shakeThreshold: 70, //阈值
* callback: (idx, award) => {
* //结束回调， 参数对应宫格索引，对应奖项
* }
* })
*/
class Shake {
/**
* @constructs Shake构造函数
* @param {Object} pageContext page路由指针
* @param {Object} opts 组件所需参数
* @param {Number} opts.shakeThreshold 频率阈值
* @param {Function} opts.callback 结束回调
*/
constructor (pageContext, opts) {
this.page = pageContext
this.shakeThreshold = opts.shakeThreshold || 80
this.lastX = 0
this.lastY = 0
this.lastZ = 0
this.lastUpdate = 0
this.isStart = true
this.endCallBack = opts.callback
this.page.audioCtx = wx.createAudioContext('shakeAudio')
this.start()
}
start () {
let { isStart, shakeThreshold, lastX, lastY, lastZ, lastUpdate } = this
wx.onAccelerometerChange((res) => {
let curTime = new Date().getTime()
if ((curTime - lastUpdate) > 100) {
let curX = res.x
let curY = res.y
let curZ = res.z
let speed = Math.abs(curX + curY + curZ - lastX - lastY - lastZ) / (curTime - lastUpdate) * 10000
if(speed > shakeThreshold && this.isStart){
this.page.audioCtx.play()
this.update()
}
lastUpdate = curTime
lastX = curX
lastY = curY
lastZ = curZ
}
})
}
update () {
this.page.setData({
anim: true
})
this.isStart = false
setTimeout(() => {
this.page.setData({
anim: false
})
this.endCallBack && this.endCallBack()
}, 2000)
}
reset () {
}
}
export default Shake