网页版扫雷 js

//HTMEL

<body>

//css

.bottom,over {
text-align: center;
line-height: 0px;
}

.bottom div {
display: inline-block;
width: 30px;
height: 30px;
border: 1px solid #808080;
background-color: #f4a;
text-align: center;
font: 20px/30px arial;
}

//JS

// 保存初始雷化记录和拆雷记录 100个按钮中有25个雷
var box = Array(10);

//初始化底层
function initBottom() {
const content = document.getElementsByClassName('content')[0];
const bottom = document.createElement('div');
content.appendChild(bottom);
bottom.className = "bottom";

for (let i = 0; i < 10; i++) {
box[i] = new Array(10);
for (let j = 0; j < 10; j++) {
const div = document.createElement('div');
bottom.appendChild(div);
div.id = "bottom[" + i + "][" + j + "]";
box[i][j] = 0;
}
bottom.innerHTML = bottom.innerHTML + "<br />";
}

initBom();
}

//初始化 25个 bom 颜色和 innerHTML
function initBom() {
//改变颜色
for (let i = 0; i < 25; i++) {
let x = Math.floor(Math.random() * 10);
let y = Math.floor(Math.random() * 10);
while (box[x][y] == 1) {
x = Math.floor(Math.random() * 10);
y = Math.floor(Math.random() * 10);
if (box[x][y] == 0) {
break;
}
}

box[x][y] = 1;
document.getElementById("bottom[" + x + "][" + y + "]").style.backgroundColor = "rgb(0, 0, 0)";
document.getElementById("bottom[" + x + "][" + y + "]").innerHTML = "x"; // 否则对不起？
}

// 生成底层数字
for (let i = 0; i < 10; i++) {
for (let j = 0; j < 10; j++) {

if (!box[i][j] == 1) {
document.getElementById("bottom[" + i + "][" + j + "]").innerHTML = getNumber(i, j);
}

}
}
}

// 取得周围雷的个数
function getNumber(i, j) {
let num = 0,
x, y;
// 四周雷的个数统计
for (let x = i - 1; x <= i + 1; x++) {
for (y = j - 1; y <= j + 1; y++) {
if (x == i && y == j) {
continue;
}
if (document.getElementById("bottom[" + x + "][" + y + "]")) {
if (box[x][y] == 1) {
num++;
}
}
}
}
return num;
}

//初始化上层 over
function initOver() {

const content = document.getElementsByClassName('content')[0];
const over = document.createElement('div');
content.appendChild(over);
over.className = "over";
over.id = "over";

for (let i = 0; i < 10; i++) {
for (let j = 0; j < 10; j++) {
const div = document.createElement('div');
over.appendChild(div);
div.id = "over[" + i + "][" + j + "]";
}
over.innerHTML = over.innerHTML + "<br />";
}

//取消右击菜单
over.oncontextmenu = function (e) {
e.returnValue = false;
}

// 点击做标记
over.onclick = function (e) {
const target = e.srcElement;
if (target.style.backgroundColor == "rgb(255, 255, 255)") {
target.style.backgroundColor = "#808080";
} else {
target.style.backgroundColor = "rgb(255, 255, 255)";
}
}

// 双击拆雷
over.ondblclick = function (e) {
const target = e.srcElement;
const strId = target.id.substring(4, target.id.length);
if (document.getElementById("bottom" + strId).style.backgroundColor == "rgb(0, 0, 0)") {
document.getElementById('over').style.display = "none";
}
else {
target.style.opacity = 0;
let i = parseInt(strId.substring(1, 2));
let j = parseInt(strId.substring(4, 5));
box[i][j] = 1;
// 等于0 扩散
if (document.getElementById("bottom" + strId).innerHTML == 0) {
zooming(i, j);
} else {
if (isGameOver()) {
alert("真厉害");
}
}

}
}
}

//扩散：当周围有 0时，自动显示
function zooming(i, j) {

for (let x = i - 1; x <= i + 1; x++) {
for (y = j - 1; y <= j + 1; y++) {
if (document.getElementById("bottom[" + x + "][" + y + "]") && document.getElementById("bottom[" + x + "][" + y + "]").innerHTML == 0) {
document.getElementById("over[" + x + "][" + y + "]").style.opacity = 0;
if (box[x][y] == 0) {
box[x][y] = 1;
zooming(x, y);
}
}
}
}
}

//是否清除完 box[][] 初始化雷时赋值 1，拆雷是赋值 1，全部为1时，完成扫雷。
function isGameOver() {
for (let i = 0; i < 10; i++) {
for (let j = 0; j < 10; j++) {
if (box[i][j] == 0) {
return false;
}
}
}
return true;
}

网页版 扫雷 js

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