微信小程序如何实现五子棋游戏

<view class="title">
  <view wx:if="{{currindex < 324 || defeat}}">
  {{defeat?'胜出方：'+(outindex?'黑棋':'白棋'):'轮到了：'+(outindex?'白棋':'黑棋')}}
  </view>
  <view wx:else>平局</view>
</view>
<view class="gobang">
  <view wx:for="{{detail}}" wx:key="index" bindtap="{{defeat || item.type > 0?'':'palyclass'}}" data-index="{{index}}">
    <view class="piece {{item.type > 0?item.type == 1?'black':'white':''}}"></view>
  </view>
</view>
<button wx:if="{{defeat || currindex > 323}}" bindtap="reset">重新开始</button>

page{background: #fff;}
.title{width: 100%;display: flex;align-items: center;justify-content: center;margin-top: 20rpx;font-size: 34rpx;}
.gobang{width: 342px;height: 342px;margin: 30rpx calc((100% - 342px) / 2);float: left;
position: relative;right: 9.5px;}
.gobang>view{width: 5.55%;height: 19px;float: left;display: flex;align-content: center;justify-content: center;
border-left: 1px solid #333;border-top: 1px solid #333;background: #F0BF7C;}
.gobang>view:nth-child(18n+1){width: 5.6%;border-left: 0;border-top: 0;background: #fff;}
.gobang>view:nth-child(18n){border-right: 1px solid #333;}
.gobang>view:nth-child(n+307){border-left: 0;background: #fff;border-right: 0;}
.piece{background: rgba(255,255,255,0);width: 100%;height: 100%;border-radius: 50%;transition: background 0.3s;
position: relative;left: 9.5px;bottom: 9.5px;}
.white{background:radial-gradient(15px 15px at 15px 15px,#fff,#e2e2e2);box-shadow:2px 2px 4px rgba(0,0,0,0.3);}
.black{background:radial-gradient(10px 10px at 15px 15px,#e2e2e2,#333);box-shadow:2px 2px 4px rgba(0,0,0,0.4);}

Page({
  data: {
  },
  onLoad: function (options) {
    this.reset()
  },
  reset(e){
    var detail = []
    for(let i = 0;i < 324;i++){
      detail.push({type:0})
    }
    this.setData({
      detail:detail,
      defeat:false,
      outindex:false,
      currindex:0,
    })
  },
  palyclass(e){
    var index = e.currentTarget.dataset.index,detail = this.data.detail,outindex = this.data.outindex,
    currindex = this.data.currindex;
    currindex++
    detail[index].type = outindex?2:1
    this.setData({
      detail:detail,
      outindex:!outindex,
      currindex:currindex,
    })
    if(currindex > 8){
      this.validate(index)
    }
  },
  validate(index){
    var detail = this.data.detail,type = this.data.outindex?1:2,remai_left = (index%18)+1,remai_right = 19 - remai_left,
    remai_upper = Math.floor(index / 18) + 1,remai_lower = 19 - remai_upper,arr = [];
    for(let i = 1;i < (remai_left > 4?5:remai_left);i++){
      arr.unshift(index - i)
    }
    for(let i = 1;i < (remai_right > 4?5:remai_right);i++){
      arr.push(index + i)
    }
    this.result(arr,type).then(() => {
      arr = [];
      for(let i = 1;i < (remai_upper > 4?5:remai_upper);i++){
        arr.unshift(index - (18*i))
      }
      for(let i = 1;i < (remai_lower > 4?5:remai_lower);i++){
        arr.push(index + (18*i))
      }
      this.result(arr,type).then(() => {
        var oblique_left = remai_upper < remai_left?remai_upper:remai_left,
        oblique_right = remai_lower < remai_right?remai_lower:remai_right;
        arr = [];
        for(let i = 1;i < (oblique_left > 4?5:oblique_left);i++){
          arr.unshift(index - (18*i) - i)
        }
        for(let i = 1;i < (oblique_right > 4?5:oblique_right);i++){
          arr.push(index + (18*i) + i)
        }
        this.result(arr,type).then(() => {
          var curved_left = remai_upper < remai_right?remai_upper:remai_right,
          curved_right = remai_lower < remai_left?remai_lower:remai_left;
          arr = [];
          for(let i = 1;i < (curved_left > 4?5:curved_left);i++){
            arr.unshift(index - (18*i) + i)
          }
          for(let i = 1;i < (curved_right > 4?5:curved_right);i++){
            arr.push(index + (18*i) - i)
          }
          this.result(arr,type).then(() => {
            return;
          })
        })
      })
    })
  },
  result(arr,type){
    var detail = this.data.detail,number = 0;
    for(let i = 0;i < arr.length;i++){
      if(detail[arr[i]].type == type){
        number++
      }else if(number > 0){
        break;
      }
    }
    return new Promise((resolve, reject) => {
      if(number > 3){
        this.tips(type);
      }else{
        resolve()
      }
    })
  },
  tips(type){
    this.setData({
      defeat:true,
    })
    wx.showModal({
      title: '提示',
      content: '恭喜'+(type == 1?'黑棋':'白棋')+'获得了胜利',
      showCancel:false,
      confirmText:'我知道了'
    })
  },
})