<view class="title">
? <view wx:if="{{currindex < 324 || defeat}}">
? {{defeat?'勝出方：'+(outindex?'黑棋':'白棋'):'輪到了：'+(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">重新開始</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')+'獲得了勝利',
? ? ? showCancel:false,
? ? ? confirmText:'我知道了'
? ? })
? },
})