使用纯javascript实现经典扫雷游戏

2024-05-06 16:18:40

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本文给大家分享的是个人刚开始学习javascript的时候写的仿windows经典的扫雷游戏的代码，当时只是写了下来，没加注释，这里补上，有需要的小伙伴可以参考下。

很久以前写的当时都没写注释的刚加上了 (尼玛，好多自己都不认识了 ... )

不足的地方就是本来想写个游戏排名的统计的，等有空了再加上(好像每次都这么说然后就等好久好久...)

还有就是没有实现：点击第一个格子不能是雷的功能

<style>

ul{padding:0;list-style:none;}

#mine{overflow:hidden;width:30px;height:30px;border:1px solid #966;}

#mine li{float:left;width:30px;height:30px;line-height:30px;text-align:center;font-size:14px;color:#222;}

#mine .mine_01{background:url(mine.gif) no-repeat;}

#mine .mine_02{background:url(mine.gif) -30px 0 no-repeat;}

#mine .mine_03{background:url(mine.gif) -60px 0 no-repeat;}

#mine .mine_04{background:url(mine.gif) -90px 0 no-repeat;}

#mine .mine_05{background:url(mine.gif) -120px 0 no-repeat;}

#mine .mine_06{background:url(mine.gif) -150px 0 no-repeat;}

#mine .mine_07{background:url(mine.gif) -180px 0 no-repeat;}

#count{font-size:12px;}

#time{color:#900;font-weight:bold;}

</style>

<select id="wh">

<option value="8*10">8*10</option>

<option value="10*10">10*10</option>

<option value="12*12">12*12</option>

</select>

<button id='ready'>重新开始</button>

<div id="count">

计时: <span id="time">0</span>

</div>

<ul id="mine">

</ul>

ie6+ ff oprea 谷歌

opera 早期版本默认不支持document.oncontextmenu事件没有找到好的替代方法

<script>

var $ = function(id){return document.getElementById(id)};

window.onload=function ready(){

var V=$('wh').value.split('*')

setMineField(Number(V[0]),Number(V[1]));

$('wh').onchange=$('ready').onclick=function(){

V=$('wh').value.split('*')

setMineField(Number(V[0]),Number(V[1]))

}

}

//---------------------------------------------------雷区

var mineField={

_mineW:30, //每一个雷的宽度必须和样式同步

_mineH:30,

_mineFieldBlock:$('mine'),

_mineFieldEle:$('mine').getElementsByTagName('li'),

_time:$('time'),

status:0, //雷区状态 0还没开始 1开始了已经在计时了 2游戏结束了

mineNum:0, //雷数

clearPlace:0, //统计扫除的格子;

x:0, //列

y:0, //行

density:0.2, //雷的密度雷区密度不宜超过0.5 在有些尺寸的雷区下过高的设置无法生成mineMap数组

mineMap:[], //雷区的二维图,0 ：不是雷 -1 ：雷

time:-1, //计时 s

debug:false //调试模式

}//mineField object end

function timedCount(){

if(mineField.status!=1){return false}

mineField.time++;

mineField._time.innerHTML=mineField.time;

setTimeout("timedCount()",1000);

}

//--------------------------------------对雷的状态设置

function setThisMine(str,index){

var allMine=mineField._mineFieldEle;

//设置雷是否插旗

if(str=='setOn'){

var thisMine=allMine[index];

thisMine.on=thisMine.on<2?thisMine.on+1:0;

if(thisMine.on==1){thisMine.className='mine_03';}//插旗

else if(thisMine.on==2){thisMine.className='mine_04'}//取消插旗

else if(thisMine.on==0){thisMine.className='mine_01'}//取消插旗

return false;

}

//显示方格

if(str=='show'){

if(Object.prototype.toString.call(index) === '[object Array]'){//显示一大片

mineField.clearPlace=mineField.clearPlace+index.length;

for(var i=0;i<index.length;i++){

var thisMine=allMine[index[i]];

thisMine.innerHTML=mineField.mineMap[thisMine.index];

thisMine.className='mine_02';

thisMine.on=3;

}

}

else{//显示单个非雷区域

mineField.clearPlace++;

allMine[index].on=3;

allMine[index].innerHTML=mineField.mineMap[index];

allMine[index].className='mine_02';

}

if(mineField.clearPlace==mineField.x*mineField.y-mineField.mineNum){//恭喜你

alert('恭喜你');

for(var i=0;i<allMine.length;i++){

if(mineField.mineMap[allMine[i].index]==-1){

allMine[i].className='mine_07';

}

}

mineField.status=2;

return false;

}

}

//显示全部雷

if(str=='peng'){

for(var i=0;i<allMine.length;i++){

if(mineField.mineMap[allMine[i].index]==-1){

allMine[i].className=i==index?'mine_06':'mine_05';

}

}

mineField.status=2;

}

}

//-----------------------------------------------设置行数和列数

function setMineField(a,b){

var thisMineFiele=mineField._mineFieldBlock;

DivBox=document.createElement("div"),

num=a*b,k=0;

thisMineFiele.innerHTML='';

//雷区参数调整

mineField.x=a;//有几列

mineField.y=b;//有几行

mineField.mineNum=Math.floor(a*b*mineField.density);

mineField.status=0;

mineField.time=-1;

mineField.clearPlace=0;

mineField.mineMap.length=0;

mineField._time.innerHTML=0;

//生成雷区地图

setMineMap();

//生成雷区(创建li)

while(k<num){

var newLi=document.createElement("li");

if(mineField.debug) newLi.innerHTML=mineField.mineMap[k];//作弊

newLi.className='mine_01';

DivBox.appendChild(newLi);

k++;

}

thisMineFiele.style.height=mineField._mineW*b+'px';

thisMineFiele.style.width=mineField._mineH*a+'px';

thisMineFiele.innerHTML=DivBox.innerHTML;

DivBox=null;

setEvent();//事件

}

//-----------------------------------生成雷区地图

function setMineMap(){

var num=mineField.x*mineField.y,

mineNum=mineField.mineNum,

Interval=Math.floor(num/mineNum);

for(var i=0;i<num;i++){

if(i%Interval==0&&i<mineNum*Interval){mineField.mineMap[i]=-1;}else{mineField.mineMap[i]=0;}//雷等距离分布与数组中

}

mineField.mineMap.sort(function(){ return 0.5 - Math.random()})//打乱数组

//判断方格周围是否都是雷如果是的话要重新生成雷区从而避免成片雷区的存在

var br=0,//所在行

x=mineField.x,

L_T,T,R_T,L,R,L_B,B,R_B;

for(var i=0;i<num;i++){

br=Math.ceil((i+1)/x);

L_T = i-x-1;

T = i-x;

R_T = i-x+1;

L = i-1;

R = i+1;

L_B = i+x-1;

B = i+x;

R_B = i+x+1;

//坐上角如果在雷区并且是在上一行并且他不是雷就进行下一方格检测

if(L_T>=0&&Math.ceil((L_T+1)/x)==br-1&&mineField.mineMap[L_T]==0){continue}

if(T >=0&&Math.ceil((T +1)/x)==br-1&&mineField.mineMap[T ]==0){continue}

if(R_T>=0&&Math.ceil((R_T+1)/x)==br-1&&mineField.mineMap[R_T]==0){continue}

if(L>=0 &&Math.ceil((L+1)/x)==br&&mineField.mineMap[L]==0){continue}

if(R<num&&Math.ceil((R+1)/x)==br&&mineField.mineMap[R]==0){continue}

if(L_B<num&&Math.ceil((L_B+1)/x)==br+1&&mineField.mineMap[L_B]==0){continue}

if(B <num&&Math.ceil((B +1)/x)==br+1&&mineField.mineMap[B ]==0){continue}

if(R_B<num&&Math.ceil((R_B+1)/x)==br+1&&mineField.mineMap[R_B]==0){continue}

setMineMap();

return false

}

//统计非雷方格周围的雷数

for(i=0;i<num;i++){

if(mineField.mineMap[i]==-1){continue}

var thisMineNum=0

br=Math.ceil((i+1)/x);

L_T = i-x-1;

T = i-x;

R_T = i-x+1;

L = i-1;

R = i+1;

L_B = i+x-1;

B = i+x;

R_B = i+x+1;

if(L_T>=0&&Math.ceil((L_T+1)/x)==br-1&&mineField.mineMap[L_T]==-1){thisMineNum++;}

if(T >=0&&Math.ceil((T +1)/x)==br-1&&mineField.mineMap[T ]==-1){thisMineNum++;}

if(R_T>=0&&Math.ceil((R_T+1)/x)==br-1&&mineField.mineMap[R_T]==-1){thisMineNum++;}

if(L>=0 &&Math.ceil((L+1)/x)==br&&mineField.mineMap[L]==-1){thisMineNum++;}

if(R<num&&Math.ceil((R+1)/x)==br&&mineField.mineMap[R]==-1){thisMineNum++;}

if(L_B<num&&Math.ceil((L_B+1)/x)==br+1&&mineField.mineMap[L_B]==-1){thisMineNum++;}

if(B <num&&Math.ceil((B +1)/x)==br+1&&mineField.mineMap[B ]==-1){thisMineNum++;}

if(R_B<num&&Math.ceil((R_B+1)/x)==br+1&&mineField.mineMap[R_B]==-1){thisMineNum++;}

mineField.mineMap[i]=thisMineNum;

}

}

//----------------------------------雷区事件

function setEvent(){

var thisMineFiele=mineField._mineFieldBlock,

allMine=mineField._mineFieldEle,

iMax=mineField.x*mineField.y;

for(var i=0;i<iMax;i++){

allMine[i].index=i;

allMine[i].on=0;//0为默认 1为插旗 2为问号 3为显示

}

thisMineFiele.onmouseup=function(e){

if(mineField.status==2){return false;}

if(mineField.status==0){mineField.status=1;timedCount();}

var e=e||window.event,

thisObj=e.target||e.srcElement;

if(thisObj.nodeName=='UL'||thisObj.on==3){return false;}

var Btn=getButton(e);

if(Btn== 0){//左键

if(thisObj.on==1){return false;}//插旗子了就不能点了

if(mineField.mineMap[thisObj.index]==-1){//点雷了

setThisMine('peng',thisObj.index);

}else if(mineField.mineMap[thisObj.index]==0){//点到空地了打开一大片

//alert('你运气真好')

var allShowMine=minesShow(thisObj.index);

setThisMine('show',allShowMine)

}else{//显示一个格子

setThisMine('show',thisObj.index)

}

}

if(Btn== 2){//右键

setThisMine('setOn',thisObj.index);

}

}

}

//--------------------------------按到空格时显示一大片

function minesShow(I){

var allMine=mineField._mineFieldEle,

allShowMine=[I];//保存要显示的雷的下标

allMine[I].on=3;

see(I);//查询下标为I的周围的方格

function see(allI){

var _allI=[];

if(Object.prototype.toString.call(allI) === '[object Array]'){

for(var i=0;i<allI.length;i++){f(allI[i])}

}

else{f(allI)}

function f(thisI){

var text,

x=mineField.x,

br,

num=x*mineField.y,

L_T,T,R_T,L,R,L_B,B,R_B;

text='_'+allShowMine.join('_')+'_';//用来判断下标是否已经写入数组

br=Math.ceil((thisI+1)/x);

L_T = thisI-x-1;

T = thisI-x;

R_T = thisI-x+1;

L = thisI-1;

R = thisI+1;

L_B = thisI+x-1;

B = thisI+x;

R_B = thisI+x+1;

//左上角的方格如果是在雷区又是在上一行又是没翻开的格子又是空格那么就写如_allI数组来进行下一次检索

if(L_T>=0&&Math.ceil((L_T+1)/x)==br-1&&allMine[L_T].on==0&&mineField.mineMap[L_T] == 0){_allI.push(L_T);}

if(T >=0&&Math.ceil((T +1)/x)==br-1&&allMine[T ].on==0&&mineField.mineMap[T ] == 0){_allI.push(T);}

if(R_T>=0&&Math.ceil((R_T+1)/x)==br-1&&allMine[R_T].on==0&&mineField.mineMap[R_T] == 0){_allI.push(R_T);}

if(L>=0&&Math.ceil((L+1)/x)==br&&allMine[L].on==0&&mineField.mineMap[L] == 0){_allI.push(L);}

if(R<num&&Math.ceil((R+1)/x)==br&&allMine[R].on==0&&mineField.mineMap[R] == 0){_allI.push(R);}

if(L_B<num&&Math.ceil((L_B+1)/x)==br+1&&allMine[L_B].on==0&&mineField.mineMap[L_B] == 0){_allI.push(L_B);}

if(B <num&&Math.ceil((B +1)/x)==br+1&&allMine[B ].on==0&&mineField.mineMap[B ] == 0){_allI.push(B);}

if(R_B<num&&Math.ceil((R_B+1)/x)==br+1&&allMine[R_B].on==0&&mineField.mineMap[R_B] == 0){_allI.push(R_B);}

//------------------------------------------------

//左上角的的格子如果在雷区又是在上一行又是没翻开的格子又是没写入allShowMine数组的那就写入吧并提前标记为翻开的格子

if(L_T>=0&&Math.ceil((L_T+1)/x)==br-1&&allMine[L_T].on==0&&text.indexOf('_'+L_T+'_') == -1){allShowMine.push(L_T);allMine[L_T].on=3}

if(T >=0&&Math.ceil((T +1)/x)==br-1&&allMine[T ].on==0&&text.indexOf('_'+T+'_') == -1){allShowMine.push(T);allMine[T].on=3}

if(R_T>=0&&Math.ceil((R_T+1)/x)==br-1&&allMine[R_T].on==0&&text.indexOf('_'+R_T+'_') == -1){allShowMine.push(R_T);allMine[R_T].on=3}

if(L>=0&&Math.ceil((L+1)/x)==br&&allMine[L].on==0&&text.indexOf('_'+L+'_') == -1){allShowMine.push(L);allMine[L].on=3}

if(R<num&&Math.ceil((R+1)/x)==br&&allMine[R].on==0&&text.indexOf('_'+R+'_') == -1){allShowMine.push(R);allMine[R].on=3}

if(L_B<num&&Math.ceil((L_B+1)/x)==br+1&&allMine[L_B].on==0&&text.indexOf('_'+L_B+'_') == -1){allShowMine.push(L_B);allMine[L_B].on=3}

if(B <num&&Math.ceil((B +1)/x)==br+1&&allMine[B ].on==0&&text.indexOf('_'+B+'_') == -1){allShowMine.push(B );allMine[B ].on=3}

if(R_B<num&&Math.ceil((R_B+1)/x)==br+1&&allMine[R_B].on==0&&text.indexOf('_'+R_B+'_') == -1){allShowMine.push(R_B);allMine[R_B].on=3}

if(_allI.length!=0){see(_allI)}

}

}

return allShowMine

}

//--------------------------------------

document.oncontextmenu=function(){return false;}//禁止右键菜单

function getButton(e){

var Btn;

if(document.implementation.hasFeature('MouseEvents','2.0')){Btn=e.button;}

else{ switch(e.button){

case 0:

case 1:

case 3:

case 5:

case 7:

Btn=0;

break;

case 2:

case 6:

Btn=2;

break;

case 4:

Btn=9;

break;

}

}

return Btn;

}

</script>