undefined不会玩扫雷
作者：jixiaod
微信小程序这几天很火，9号正式发布，今天19号过了10天，到现在略有降温的趋势。个大厂商对微信小程序的态度很不看好，最激进的要数[罗辑思维]，直接下架了自己的[得到APP]。滴滴、京东等APP也只保留了最精简的功能，某些担心过于完善的功能会抢夺APP本身的用户。不过这也印证了小程序的初衷，小而精、用完即走。（并不否认腾讯微信平台确实流氓的事实） PS：墨迹天气也开发了微信小程序版本，并且在1月9号第一时间发布，欢迎使用。
作为技术人员，怎能不亲手试试小程序开发呢？扫雷 Minesweeper 实现思路：- 如果不了解扫雷的游戏规则，请自行 Google
- 绘制一张 10*10 的地图，并且标注地雷和非地雷，并且需要用数字表示每个点周围地雷的数量
- 用 mineMap[x][y] 表示一个点位
- mineMap[x][y] < 0 (代码中 == -1) 初始状态
- 0 < mineMap[x][y] < 9 该点周围地雷的数量
- mineMap[x][y] == 9 表示该点是地雷
- mineMap[x][y] > 9 （代码中 == 10）表示该点插旗
如何跑起来？- 下载&安装微信小程序开发工具
- 配置 wechat-app-minesweeper 代码目录到开发工具即可
玩法- 需要注意的是，由于没有鼠标右键标记Flag，简单做了 Flag 切换，开启后，方可标记Flag
- 最初的想法是通过 tap 和 longtap 来区分扫雷和Flag，但是开发工具不能区分这俩个事件，只能作罢
[mw_shl_code=html,true]//index.js
//获取应用实例
var app = getApp()
Page({
data: {
mineMap: {},
timesGo: 0,
minesLeft: 0
},
mineMap: {},
mineMapMapping: {},
rowCount: 10,
colCount: 10,
mineCount: 10,
minMineCount: 10,
maxMineCount: 20,
minesLeft: 0,
timesGo: 0,
timeInterval: null,
flagOn: false,
flags: 0,
endOfTheGame: false,
safeMinesGo: 0,
onLoad: function() {
this.setData({
minesLeft: 0,
timesGo: 0
});
this.drawMineField();
},
setGame: function() {
this.drawMineField();
this.createMinesMap();
this.setMinesLeft();
this.timeGoReset();
this.timeGoClock();
this.endOfTheGame = false;
this.safeMinesGo = 0;
},
setMinesLeft: function() {
this.minesLeft = this.mineCount;
this.setData({minesLeft: this.minesLeft});
},
timeGoClock: function() {
var self = this;
this.timeInterval = setInterval(function () {
// console.log(self.data.timesGo);
self.timesGo = self.timesGo + 1;
self.setData({timesGo: self.timesGo});
}, 1000);
},
timeGoStop: function() {
clearInterval(this.timeInterval);
},
timeGoReset: function() {
clearInterval(this.timeInterval);
this.timesGo = 0;
this.setData({timesGo: this.timesGo});
},
createMinesMap: function() {
var tmpMineMap = {};
// initalize mine map with 0.
for (var row = 0; row < this.rowCount; row++) {
tmpMineMap[row] = [];
for (var col = 0; col < this.colCount; col++) {
tmpMineMap[row][col] = 0;
}
}
//console.log(tmpMineMap);
// laying mines with 9
this.mineCount = this.rangeRandom(this.minMineCount, this.maxMineCount);
var tmpCount = this.mineCount;
//console.log("Mine count: ", tmpCount);
while (tmpCount > 0) {
var row = this.rangeRandom(0, this.rowCount - 1);
var col = this.rangeRandom(0, this.colCount - 1);
if (tmpMineMap[row][col] != 9) {
tmpMineMap[row][col] = 9;
tmpCount--;
}
}
// calculate numbers around mines.
for (var row = 0; row < this.rowCount; row++) {
for (var col = 0; col < this.colCount; col++) {
var startRow = row - 1;
var startCol = col - 1;
//console.log("check====== r" +startRow +"c"+startCol );
for (var r = row-1; r < row+2; r++) {
for (var c = col-1; c < col+2; c++) {
//console.log("go: r"+r+":c"+c);
if (c >= 0 && c < this.colCount
&& r >= 0 && r < this.rowCount
&& !(r === row && c === col)
&& tmpMineMap[r][c] == 9
&& tmpMineMap[row][col] != 9) {
tmpMineMap[row][col]++;
}
}
}
}
}
this.mineMapMapping = tmpMineMap;
},
drawMineField: function() {
var tmpMineMap = {};
for (var row = 0; row < this.rowCount; row++) {
tmpMineMap[row] = [];
for (var col = 0; col < this.colCount; col++) {
tmpMineMap[row][col] = -1;
}
}
this.mineMap = tmpMineMap;
//console.log(this.mineMap);
this.setData({
mineMap: this.mineMap
})
},
demining: function(event) {
if (JSON.stringify(this.mineMapMapping) == "{}") return;
var x = parseInt(event.target.dataset.x);
var y = parseInt(event.target.dataset.y);
var value = parseInt(event.target.dataset.value);
//console.log("value:" + value +" x:"+x +" y:"+y);
//flag this field as mine.
if (this.flagOn) {
this.flag(x, y, value);
return;
}
// if field has been opened, return.
if (value > 0) return;
var valueMapping = this.mineMapMapping[x][y];
//console.log(this.mineMapMapping);
//console.log(valueMapping);
if (valueMapping < 9) {
this.mineMap[x][y] = valueMapping;
this.setData({mineMap: this.mineMap});
this.safeMinesGo++;
console.log("Safe mine go: " + this.safeMinesGo);
if ((this.safeMinesGo + this.mineCount) == (this.rowCount * this.colCount)) {
this.success();
}
}
// When digg the mine.
if (valueMapping == 9) {
this.failed();
}
// Open the fields with 0 mines arround.
if (valueMapping == 0) {
this.openZeroArround(x, y);
this.setData({mineMap:this.mineMap});
}
},
success: function() {
wx.showToast({
title: 'GOOD!',
duration: 3000
})
this.timeGoStop();
this.endOfTheGame = true;
},
failed: function() {
wx.showToast({
title: 'SORRY!',
duration: 3000
})
this.showAll();
this.timeGoStop();
this.endOfTheGame = true;
},
// Open the fields arround 0 field recursively.
openZeroArround: function(row, col) {
//console.log("click" + row + " " + col)
for (var r = (row-1); r < (row+2); r++) {
for (var c = (col-1); c < (col+2); c++) {
//console.log("go: r"+r+":c"+c);
if (r >= 0 && r < this.rowCount
&& c >= 0 && c < this.colCount
&& !(r === row && c === col)
&& this.mineMap[r][c] < 0) {
this.mineMap[r][c] = this.mineMapMapping[r][c];
this.safeMinesGo++;
if (this.mineMapMapping[r][c] == 0) {
this.openZeroArround(r, c);
}
}
}
}
console.log("Safe mine go: " + this.safeMinesGo);
if ((this.safeMinesGo + this.mineCount) == (this.rowCount * this.colCount)) {
this.success();
}
},
flagSwitch: function(e) {
if (e.detail.value) {
this.flagOn = true;
} else {
this.flagOn = false;
}
},
flag: function(x, y, value) {
if (value > 0 && value < 10) return;
// if flaged already, set the original state.
if (value == 10) {
this.pullUpFlag(x, y);
return;
}
if (this.minesLeft <= 0) return;
this.minesLeft = this.minesLeft - 1;
this.mineMap[x][y] = 10;
this.setData({mineMap: this.mineMap, minesLeft: this.minesLeft});
},
pullUpFlag: function(x, y) {
if (this.minesLeft < this.mineCount) {
this.minesLeft = this.minesLeft + 1;
}
this.mineMap[x][y] = -1;
this.setData({mineMap: this.mineMap, minesLeft: this.minesLeft});
},
rangeRandom: function(x, y) {
var z = y - x + 1;
return Math.floor(Math.random() * z + x);
},
showAll: function() {
this.mineMap = this.mineMapMapping;
this.setData({mineMap: this.mineMap});
}
});[/mw_shl_code]
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发表于 2017-3-3 15:17:45
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