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這篇文章主要介紹“JavaScript實現(xiàn)掃雷小游戲的代碼怎么寫”的相關(guān)知識，小編通過實際案例向大家展示操作過程，操作方法簡單快捷，實用性強(qiáng)，希望這篇“JavaScript實現(xiàn)掃雷小游戲的代碼怎么寫”文章能幫助大家解決問題。
思路：
1產(chǎn)生指定數(shù)量的地雷
2計算方塊周圍的地雷
3點擊地雷結(jié)束
4點擊地雷周邊顯示地雷個數(shù)
5點擊空白塊，消除所有相連的空白塊
6游戲主體已經(jīng)完成了。剩下就是完善一些小細(xì)節(jié)，例如勝利判斷 ，失敗露出苦瓜臉 ，難度切換，新游戲按鈕 等等…
首先是html+css的代碼
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>掃雷v1.0</title>
<style>
body {
margin: 0;
padding: 0;
font-family: Arial;
font-size: 12px;
color: #FFFFFF;
background: #000000;
}
.div-game {
margin: 5% auto;
width: 480px;
height: 420px;
}
.div-score {
position: relative;
top: 0px;
left: 0px;
height: 30px;
color: #000000;
background: #C0C0C0;
border-top: 1px solid #FFFFFF;
border-right: 1px solid #FFFFFF;
}
.img-mines,
.div-mines,
.img-time,
.img-smiley,
.div-time,
.lb-level,
.bn-reset {
position: absolute;
}
.img-mines {
top: 6px;
left: 10px;
}
.div-mines {
top: 6px;
left: 30px;
width: 40px;
font-family: Verdana;
font-size: 14px;
font-weight: bold;
text-align: left;
color: #0000CF;
background: transparent;
}
.img-time {
top: 6px;
left: 80px;
}
.div-time {
top: 6px;
left: 100px;
width: 60px;
font-family: Verdana;
font-size: 14px;
font-weight: bold;
text-align: left;
color: #007F00;
background: transparent;
}
.img-smiley {
top: 6px;
left: 240px;
}
.lb-level {
top: 4px;
left: 330px;
width: 80px;
font-family: Arial;
font-size: 12px;
}
.bn-reset {
top: 3px;
left: 420px;
width: 50px;
font-family: Arial;
font-size: 12px;
text-align: center;
}
.div-board {
position: relative;
width: 480px;
height: 320px;
color: #000000;
background: #7F7F7F;
border-top: 1px solid #000000;
border-bottom: 1px solid #FFFFFF;
border-left: 1px solid #FFFFFF;
}
.cell {
position: absolute;
overflow: hidden;
}
.div-adsense {
position: relative;
width: 100%;
height: 60px;
text-align: center;
}
.div-addfreestats {
position: absolute;
left: 0px;
top: 0px;
display: none;
}
</style>
</head>
<body>
<div id="div-game" class="div-game">
<div id="div-score" class="div-score">
<img id="img-mines" class="img-mines" src="./img/mines.png">
<div id="div-mines" class="div-mines">10</div>
<img id="img-time" class="img-time" src="./img/clock.png">
<div id="div-time" class="div-time">00:00</div>
<img id="img-smiley" class="img-smiley" src="./img/happy.png" >
<select id="lb-level" class="lb-level" onchange="game.restart()" name="bn-reset">
<option selected="" value="easy">簡單</option>
<option value="normal">普通</option>
<option value="advanced">高級</option>
<option value="expert">專家</option>
<option value="hell">地獄</option>
</select>
<input id="bn-reset" type="button" class="bn-reset" value="新游戲!" name="bn-reset">
</div>
<div id="div-board" class="div-board">
<img id="cell0" class="cell" src="./img/up.png" anum="0">
<img id="cell1" class="cell" src="./img/up.png" anum="0">
<img id="cell2" class="cell" src="./img/up.png" anum="0">
<img id="cell3" class="cell" src="./img/up.png" anum="0">
<img id="cell4" class="cell" src="./img/up.png" anum="0">
<img id="cell5" class="cell" src="./img/up.png" anum="0">
<img id="cell6" class="cell" src="./img/up.png" anum="0">
<img id="cell7" class="cell" src="./img/up.png" anum="0">
<img id="cell8" class="cell" src="./img/up.png" anum="0">
<img id="cell9" class="cell" src="./img/up.png" anum="0">
<img id="cell10" class="cell" src="./img/up.png" anum="0">
<img id="cell11" class="cell" src="./img/up.png" anum="0">
<img id="cell12" class="cell" src="./img/up.png" anum="0">
<img id="cell13" class="cell" src="./img/up.png" anum="0">
<img id="cell14" class="cell" src="./img/up.png" anum="0">
<img id="cell15" class="cell" src="./img/up.png" anum="0">
<img id="cell16" class="cell" src="./img/up.png" anum="0">
<img id="cell17" class="cell" src="./img/up.png" anum="0">
<img id="cell18" class="cell" src="./img/up.png" anum="0">
<img id="cell19" class="cell" src="./img/up.png" anum="0">
<img id="cell20" class="cell" src="./img/up.png" anum="0">
<img id="cell21" class="cell" src="./img/up.png" anum="0">
<img id="cell22" class="cell" src="./img/up.png" anum="0">
<img id="cell23" class="cell" src="./img/up.png" anum="0">
<img id="cell24" class="cell" src="./img/up.png" anum="0">
<img id="cell25" class="cell" src="./img/up.png" anum="0">
<img id="cell26" class="cell" src="./img/up.png" anum="0">
<img id="cell27" class="cell" src="./img/up.png" anum="0">
<img id="cell28" class="cell" src="./img/up.png" anum="0">
<img id="cell29" class="cell" src="./img/up.png" anum="0">
<img id="cell30" class="cell" src="./img/up.png" anum="0">
<img id="cell31" class="cell" src="./img/up.png" anum="0">
<img id="cell32" class="cell" src="./img/up.png" anum="0">
<img id="cell33" class="cell" src="./img/up.png" anum="0">
<img id="cell34" class="cell" src="./img/up.png" anum="0">
<img id="cell35" class="cell" src="./img/up.png" anum="0">
<img id="cell36" class="cell" src="./img/up.png" anum="0">
<img id="cell37" class="cell" src="./img/up.png" anum="0">
<img id="cell38" class="cell" src="./img/up.png" anum="0">
<img id="cell39" class="cell" src="./img/up.png" anum="0">
<img id="cell40" class="cell" src="./img/up.png" anum="0">
<img id="cell41" class="cell" src="./img/up.png" anum="0">
<img id="cell42" class="cell" src="./img/up.png" anum="0">
<img id="cell43" class="cell" src="./img/up.png" anum="0">
<img id="cell44" class="cell" src="./img/up.png" anum="0">
<img id="cell45" class="cell" src="./img/up.png" anum="0">
<img id="cell46" class="cell" src="./img/up.png" anum="0">
<img id="cell47" class="cell" src="./img/up.png" anum="0">
<img id="cell48" class="cell" src="./img/up.png" anum="0">
<img id="cell49" class="cell" src="./img/up.png" anum="0">
<img id="cell50" class="cell" src="./img/up.png" anum="0">
<img id="cell51" class="cell" src="./img/up.png" anum="0">
<img id="cell52" class="cell" src="./img/up.png" anum="0">
<img id="cell53" class="cell" src="./img/up.png" anum="0">
<img id="cell54" class="cell" src="./img/up.png" anum="0">
<img id="cell55" class="cell" src="./img/up.png" anum="0">
<img id="cell56" class="cell" src="./img/up.png" anum="0">
<img id="cell57" class="cell" src="./img/up.png" anum="0">
<img id="cell58" class="cell" src="./img/up.png" anum="0">
<img id="cell59" class="cell" src="./img/up.png" anum="0">
<img id="cell60" class="cell" src="./img/up.png" anum="0">
<img id="cell61" class="cell" src="./img/up.png" anum="0">
<img id="cell62" class="cell" src="./img/up.png" anum="0">
<img id="cell63" class="cell" src="./img/up.png" anum="0">
<img id="cell64" class="cell" src="./img/up.png" anum="0">
<img id="cell65" class="cell" src="./img/up.png" anum="0">
<img id="cell66" class="cell" src="./img/up.png" anum="0">
<img id="cell67" class="cell" src="./img/up.png" anum="0">
<img id="cell68" class="cell" src="./img/up.png" anum="0">
<img id="cell69" class="cell" src="./img/up.png" anum="0">
<img id="cell70" class="cell" src="./img/up.png" anum="0">
<img id="cell71" class="cell" src="./img/up.png" anum="0">
<img id="cell72" class="cell" src="./img/up.png" anum="0">
<img id="cell73" class="cell" src="./img/up.png" anum="0">
<img id="cell74" class="cell" src="./img/up.png" anum="0">
<img id="cell75" class="cell" src="./img/up.png" anum="0">
<img id="cell76" class="cell" src="./img/up.png" anum="0">
<img id="cell77" class="cell" src="./img/up.png" anum="0">
<img id="cell78" class="cell" src="./img/up.png" anum="0">
<img id="cell79" class="cell" src="./img/up.png" anum="0">
<img id="cell80" class="cell" src="./img/up.png" anum="0">
<img id="cell81" class="cell" src="./img/up.png" anum="0">
<img id="cell82" class="cell" src="./img/up.png" anum="0">
<img id="cell83" class="cell" src="./img/up.png" anum="0">
<img id="cell84" class="cell" src="./img/up.png" anum="0">
<img id="cell85" class="cell" src="./img/up.png" anum="0">
<img id="cell86" class="cell" src="./img/up.png" anum="0">
<img id="cell87" class="cell" src="./img/up.png" anum="0">
<img id="cell88" class="cell" src="./img/up.png" anum="0">
<img id="cell89" class="cell" src="./img/up.png" anum="0">
<img id="cell90" class="cell" src="./img/up.png" anum="0">
<img id="cell91" class="cell" src="./img/up.png" anum="0">
<img id="cell92" class="cell" src="./img/up.png" anum="0">
<img id="cell93" class="cell" src="./img/up.png" anum="0">
<img id="cell94" class="cell" src="./img/up.png" anum="0">
<img id="cell95" class="cell" src="./img/up.png" anum="0">
<img id="cell96" class="cell" src="./img/up.png" anum="0">
<img id="cell97" class="cell" src="./img/up.png" anum="0">
<img id="cell98" class="cell" src="./img/up.png" anum="0">
<img id="cell99" class="cell" src="./img/up.png" anum="0">
</div>
<p>歡迎來到掃雷游戲！<br />在最短的時間內(nèi)根據(jù)點擊格子出現(xiàn)的數(shù)字找出所有非雷格子，同時避免踩雷，踩到一個雷即全盤皆輸。加油！<br />(簡單難度：10個地雷；普通難度：20個地雷；高級難度：30個地雷；專家難度：40個地雷；地獄難度：50個地雷)</p>
</div>
<div ></div>
<script src="./game - 副本.js"></script>
</body>
</html>然后是JavaScript的代碼：
let select = document.querySelector('#lb-level')
let boomNum = 10
if (select.options[select.selectedIndex].value == "easy") {
boomNum = 10
game()
}
select.onchange = function () {
refresh()
if (select.options[select.selectedIndex].value == "easy") {
boomNum = 10
game()
} else if (select.options[select.selectedIndex].value == "normal") {
boomNum = 20
game()
} else if (select.options[select.selectedIndex].value == "advanced") {
boomNum = 30
game()
} else if (select.options[select.selectedIndex].value == "expert") {
boomNum = 40
game()
} else if (select.options[select.selectedIndex].value == "hell") {
boomNum = 50
game()
}
}
function refresh() {
//清除掉所有的雷標(biāo)簽、圖片復(fù)原、點擊事件清空、計數(shù)器變0,win變0，計數(shù)器重開
let boxss = document.querySelectorAll('#div-board>img')
for (let i = 0; i < boxss.length; i++) {
boxss[i].className = 'cell'
boxss[i].setAttribute('anum', 0)
boxss[i].onclick = null
boxss[i].src = './img/up.png'
}
win = 0
clearInterval(timer)
document.querySelector('#div-time').innerText = '00:00'
ta = 0
tb = 0
ta1 = ''
tb1 = ''
timer = setInterval(() => {
ta++
if (ta == 60) {
ta = 0
tb++
}
ta > 9 ? ta1 = ta : ta1 = '0' + ta
tb > 9 ? tb1 = tb : tb1 = '0' + tb
document.querySelector('#div-time').innerText = tb1 + ':' + ta1
}, 1000);
return
}
function game() {
document.querySelector('#div-mines').innerText = boomNum
boomNum
console.log(123);
// 找到元素
let boxs = document.querySelectorAll('#div-board>img')
let win = 0 //勝利條件
// temp1函數(shù)，生成一批隨機(jī)數(shù)
function temp1(total, size) {
// 2個數(shù)組，第1個是臨時的大數(shù)組，第2個是最終數(shù)組
let temp = []
let final = []
// 先按照總數(shù)量生成大數(shù)組
for (let i = 0; i < total; i++) {
temp[i] = i
}
// 把大數(shù)組打亂
for (let i = 0; i < total; i++) {
// 產(chǎn)生2個隨機(jī)數(shù)，讓他們交換,只要他們不相等
let tempNum1 = parseInt(Math.random() * total)
let tempNum2 = parseInt(Math.random() * total)
let tempTemp = 0
if (tempNum1 != tempNum2) {
tempTemp = temp[tempNum1]
temp[tempNum1] = temp[tempNum2]
temp[tempNum2] = tempTemp
}
}
// 取出前面的那些數(shù)，給新數(shù)組
for (let i = 0; i < size; i++) {
final[i] = temp[i]
}
return final
}
let temps = temp1(100, boomNum)
// 把boom 這個標(biāo)志，加給這批下標(biāo)。
for (let i = 0; i < boomNum; i++) {
boxs[temps[i]].classList.add('boom')
}
let booms = document.querySelectorAll('.boom') //所有的雷拉個隊
// 判斷每格周圍的雷數(shù)
for (let i = 0; i < boxs.length; i++) {
//先判斷自己是不是雷吧，如果自己是雷，終止這次循環(huán)（因為不用計算了）
if (boxs[i].classList.contains('boom')) {
continue
}
//開始判斷雷數(shù)
// 左邊是 下標(biāo)-1 右邊是 下標(biāo)+1 上面是 下標(biāo)-10 下面是 下標(biāo)+10
// 左上是 下標(biāo)-11 右上是 下標(biāo)-9 左下是 下標(biāo)+9 右下是 下標(biāo)+11
// 需要判斷是否為左右，左右的特點，id以0，9結(jié)尾，所有的左右 不需要判斷左系列和右系列
if (i >= 11 && boxs[i].id.charAt(boxs[i].id.length - 1) != '0' && boxs[i - 11].classList.contains('boom')) { //左上
boxs[i].setAttribute('anum', parseInt(boxs[i].getAttribute('anum')) + 1)
}
if (i >= 10 && boxs[i - 10].classList.contains('boom')) { //上
boxs[i].setAttribute('anum', parseInt(boxs[i].getAttribute('anum')) + 1)
}
if (i >= 9 && boxs[i].id.charAt(boxs[i].id.length - 1) != '9' && boxs[i - 9].classList.contains('boom')) { //右上
boxs[i].setAttribute('anum', parseInt(boxs[i].getAttribute('anum')) + 1)
}
if (i >= 1 && boxs[i].id.charAt(boxs[i].id.length - 1) != '0' && boxs[i - 1].classList.contains('boom')) { //左
boxs[i].setAttribute('anum', parseInt(boxs[i].getAttribute('anum')) + 1)
}
if (i <= 98 && boxs[i].id.charAt(boxs[i].id.length - 1) != '9' && boxs[i + 1].classList.contains('boom')) { //右
boxs[i].setAttribute('anum', parseInt(boxs[i].getAttribute('anum')) + 1)
}
if (i <= 90 && boxs[i].id.charAt(boxs[i].id.length - 1) != '0' && boxs[i + 9].classList.contains('boom')) { //左下
boxs[i].setAttribute('anum', parseInt(boxs[i].getAttribute('anum')) + 1)
}
if (i <= 89 && boxs[i + 10].classList.contains('boom')) { //下
boxs[i].setAttribute('anum', parseInt(boxs[i].getAttribute('anum')) + 1)
}
if (i <= 88 && boxs[i].id.charAt(boxs[i].id.length - 1) != '9' && boxs[i + 11].classList.contains('boom')) { //右下
boxs[i].setAttribute('anum', parseInt(boxs[i].getAttribute('anum')) + 1)
}
}
// 點擊事件（核心玩法）
for (let i = 0; i < boxs.length; i++) {
boxs[i].onclick = function () {
// 點擊之后，那么就有3種情況。1，這是雷。2，這下面有數(shù)字。3.這下面是空的
if (boxs[i].classList.contains('boom')) {
// 失敗，1其他的雷，變成普通雷。2.被點擊的那個按鈕，變成爆炸雷，3取消所有的點擊事件 4.計時器關(guān)閉 5.苦瓜臉
for (let j = 0; j < booms.length; j++) {
booms[j].src = './img/mine.png'
}
boxs[i].src = './img/boom.png'
for (let x = 0; x < boxs.length; x++) {
boxs[x].onclick = null
}
clearInterval(timer)
document.querySelector('#img-smiley').style.visibility = 'visible'
document.querySelector('#img-smiley').src = './img/sad.png'
} else if (boxs[i].getAttribute('anum') != '0') {
//不是0，那么顯示數(shù)字，然后關(guān)閉點擊事件，并且計時+1
boxs[i].src = './img/' + boxs[i].getAttribute('anum') + '.png'
win++
boxs[i].onclick = null
} else {
// 既然判斷不等于0通不過，那就一定等于0了。消除所有相連的空白塊。不存在的下標(biāo)可以作為判斷條件嗎？先當(dāng)可以來寫
boxs[i].src = './img/0.png'
win++
boxs[i].onclick = null
if (i >= 10) { //上,需要判斷是不是第一排，如果不是第一排就Ok
boxs[i - 10].click()
}
if (i >= 1 && boxs[i].id.charAt(boxs[i].id.length - 1) != '0') { //左，需要判斷是不是在左邊，在左邊就不用了
boxs[i - 1].click()
}
if (i <= 98 && boxs[i].id.charAt(boxs[i].id.length - 1) != '9') { //右，需要判斷是不是在右邊，在右邊就不用了
boxs[i + 1].click()
}
if (i <= 89) { //下
boxs[i + 10].click()
}
}
if (win == 90) {
// 勝利，游戲結(jié)束，1所有的雷，變成紅旗，2取消所有的點擊事件 3.計時器關(guān)閉
for (let j = 0; j < booms.length; j++) {
booms[j].src = './img/flag.png'
}
for (let x = 0; x < boxs.length; x++) {
boxs[x].onclick = null
}
clearInterval(timer)
document.querySelector('#img-smiley').style.visibility = 'visible'
}
}
}
}
//按鈕事件
document.querySelector('#bn-reset').onclick = function () {
refresh()
if (select.options[select.selectedIndex].value == "easy") {
boomNum = 10
game()
} else if (select.options[select.selectedIndex].value == "normal") {
boomNum = 20
game()
} else if (select.options[select.selectedIndex].value == "advanced") {
boomNum = 30
game()
} else if (select.options[select.selectedIndex].value == "expert") {
boomNum = 40
game()
} else if (select.options[select.selectedIndex].value == "hell") {
boomNum = 50
game()
}
}
// 計時器
let ta = 0
let tb = 0
let ta1 = ''
let tb1 = ''
let timer = setInterval(() => {
ta++
if (ta == 60) {
ta = 0
tb++
}
ta > 9 ? ta1 = ta : ta1 = '0' + ta
tb > 9 ? tb1 = tb : tb1 = '0' + tb
document.querySelector('#div-time').innerText = tb1 + ':' + ta1
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