/**
* Class Machine
* @class
* @classdesc 老虎机游戏逻辑部分
* @author pfan
*
* @example
* new Machine(this,{
* height: 40, //单个数字高度
* len: 10, //单个项目数字个数
* transY1: 0, //第一列初始位置
* num1: 3, //第一列结束数字
* transY2: 0, //第二列初始位置
* num2: 0, //第二列结束数字
* transY3: 0, //第三列初始位置
* num3: 0, //第三列结束数字
* transY4: 0, //第四列结束数字
* num4: 1, //第四列结束数字
* speed: 24, //速度
* callback: (idx, award) => {
* //结束回调， 参数对应宫格索引，对应奖项
* }
* })
*/
class Machine {
/**
* @constructs Machine构造函数
* @param {Object} pageContext page路由指针
* @param {Object} opts 组件所需参数
* @param {Number} opts.height 单个数字高度
* @param {Number} opts.len 单个项目数字个数
* @param {Number} opts.transY1 第一列初始位置
* @param {Number} opts.num1 第一列结束数字
* @param {Number} opts.transY2 第二列初始位置
* @param {Number} opts.num2 第二列结束数字
* @param {Number} opts.transY3 第三列初始位置
* @param {Number} opts.num3 第三列结束数字
* @param {Number} opts.transY4 第四列初始位置
* @param {Number} opts.num4 第四列结束数字
* @param {Number} opts.speed 速度
* @param {Function} opts.callback 结束回调
*/
constructor (pageContext, opts) {
this.page = pageContext
this.height = opts.height
this.len = opts.len
this.transY1 = opts.transY1
this.num1 = opts.num1
this.transY2 = opts.transY2
this.num2 = opts.num2
this.transY3 = opts.transY3
this.num3 = opts.num3
this.transY4 = opts.transY4
this.num4 = opts.num4
this.speed = opts.speed
this.isStart = false
this.endCallBack = opts.callback
this.page.start = this.start.bind(this)
}
start () {
let { isStart, len, height, transY1, transY2, transY3, transY4, speed, num1, num2, num3, num4, endCallBack } = this
if(isStart)return
this.isStart = true
let totalHeight = height * len
let sRange = Math.floor(Math.random()*2 + 2)
let halfSpeed = speed / 2
let endDis1 = num1 == 0 ? 10 * height : num1 * height
let endDis2 = num2 == 0 ? 10 * height : num2 * height
let endDis3 = num3 == 0 ? 10 * height : num3 * height
let endDis4 = num4 == 0 ? 10 * height : num4 * height
let i1 = 1, i2 = 1, i3 = 1, i4 = 1
this.timer = setInterval(() => {
if(i1 <= sRange){
transY1 -= speed
if(Math.abs(transY1) > totalHeight){
transY1 = transY1 + totalHeight
i1++
}
}else if(i1 > sRange && i1 < sRange + 2){
transY1 -= halfSpeed
if(Math.abs(transY1) > totalHeight){
transY1 = transY1 + totalHeight
i1++
}
}else{
if(transY1 == endDis1)return
let dropSpeed = (endDis1 + transY1) / halfSpeed
dropSpeed = dropSpeed > halfSpeed ? halfSpeed : dropSpeed < 1 ? 1 : dropSpeed
transY1 -= dropSpeed
transY1 = Math.abs(transY1) > endDis1 ? transY1 = -endDis1: transY1
}
this.timer1 = setTimeout( () => {
if(i2 <= sRange){
transY2 -= speed
if(Math.abs(transY2) > totalHeight){
transY2 = transY2 + totalHeight
i2++
}
}else if(i2 > sRange && i2 < sRange + 2){
transY2 -= halfSpeed
if(Math.abs(transY2) > totalHeight){
transY2 = transY2 + totalHeight
i2++
}
}else{
if(transY2 == endDis2)return
let dropSpeed = (endDis2 + transY2) / halfSpeed
dropSpeed = dropSpeed > halfSpeed ? halfSpeed : dropSpeed < 1 ? 1 : dropSpeed
transY2 -= dropSpeed
transY2 = Math.abs(transY2) > endDis2 ? transY2 = -endDis2: transY2
}
}, 200)
this.timer2 = setTimeout( () => {
if(i3 <= sRange){
transY3 -= speed
if(Math.abs(transY3) > totalHeight){
transY3 = transY3 + totalHeight
i3++
}
}else if(i3 > sRange && i3 < sRange + 2){
transY3 -= halfSpeed
if(Math.abs(transY3) > totalHeight){
transY3 = transY3 + totalHeight
i3++
}
}else{
if(transY3 == endDis3)return
let dropSpeed = (endDis3 + transY3) / halfSpeed
dropSpeed = dropSpeed > halfSpeed ? halfSpeed : dropSpeed < 1 ? 1 : dropSpeed
transY3 -= dropSpeed
transY3 = Math.abs(transY3) > endDis3 ? transY3 = -endDis3: transY3
}
}, 400)
this.timer3 = setTimeout( () => {
if(i4 <= sRange){
transY4 -= speed
if(Math.abs(transY4) > totalHeight){
transY4 = transY4 + totalHeight
i4++
}
}else if(i4 > sRange && i4 < sRange + 2){
transY4 -= halfSpeed
if(Math.abs(transY4) > totalHeight){
transY4 = transY4 + totalHeight
i4++
}
}else{
let dropSpeed = (endDis4 + transY4) / halfSpeed
if(num4 < 3){
dropSpeed = dropSpeed > halfSpeed ? halfSpeed : dropSpeed < .1 ? .1 : dropSpeed
}else if(num4 < 5 && num4 >= 3) {
dropSpeed = dropSpeed > halfSpeed ? halfSpeed : dropSpeed < .3 ? .3 : dropSpeed
}else{
dropSpeed = dropSpeed > halfSpeed ? halfSpeed : dropSpeed < .3 ? .3 : dropSpeed
}
transY4 -= dropSpeed
transY4 = Math.abs(transY4) > endDis4 ? transY4 = -endDis4: transY4
if(Math.abs(transY4) >= endDis4){
clearInterval(this.timer)
clearTimeout(this.timer1)
clearTimeout(this.timer2)
clearTimeout(this.timer3)
this.isStart = false
endCallBack && endCallBack()
return
}
}
}, 600)
this.page.setData({
machine: {
transY1: transY1,
transY2: transY2,
transY3: transY3,
transY4: transY4
}
})
}, 1000/60)
}
reset () {
this.transY1 = 0
this.transY2 = 0
this.transY3 = 0
this.transY4 = 0
this.page.setData({
machine: {
transY1: 0,
transY2: 0,
transY3: 0,
transY4: 0
}
})
}
}
export default Machine