花了两天时间用 html+css+js 做了一个网页版坦克大战游戏

简介: 坦克游戏玩法及介绍

大家好,我是孙叫兽,本期内容给大家分享如何用 html+css+javaScript 去做一个简易网页版坦克游戏。

坦克游戏玩法及介绍

我们先来看一下首页。


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打开这个首页很简单,基本是上面这个样子,然后选择两个人回车就可以进行玩耍了,这个游戏需要两个人一起操作,玩家 1(我): 使用 WASD 四个键进行上左下右方向的控制,通过 space 键进行设计射击。玩家 2(女朋友):通过方向键上下左右控制方向,通过 enter 键盘射击。基本上我控制整个电脑键盘的左边,她控制电脑键盘的右边。通过 N 键进行下一关,P 键选择上一关。再键盘上显示如下。


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下面演示一下如何进入游戏


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通过方向键的下键选择两个人,然后点击回车进入游戏。也可以选择一个人进行回车进行战斗。

一个人战斗的状态。


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两个人战斗的状态。


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至于这个游戏规则我想大家都应该知道,这个里面的砖头可以打破,对手可以被打到,不能自己人打自己人,最外层的墙不能打破,坚硬的砖头也不能打破。把对手打完就可以进行下一关,不要先被对手的子弹打到,不然你就 GG 了。


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比如图中红色标记的砖头是打不破的,只能绕道走,还有只能再 yellow 标记的区域内操作,其它砖头用子弹就可以打破,不能让对手先打破你的大本营(我右边中间的老鹰),不然又得 GG.

整个游戏规则大体是这样,下面看一下代码。


项目结构


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整个项目由五部分组成,分为背景音乐、基础样式、动图、核心 JS 及首页静态展示。不涉及后端,纯前端实现。

index.html

<!DOCTYPE html><html lang="zh" class="no-js demo-1">  <head>    <meta charset="UTF-8" />    <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">    <meta name="viewport" content="width=device-width, initial-scale=1.0">    <script src="js/jquery.min.js"></script>    <script src="js/Helper.js"></script>    <script src="js/keyboard.js"></script>    <script src="js/const.js"></script>   <script src="js/level.js"></script>   <script src="js/crackAnimation.js"></script>    <script src="js/prop.js"></script>    <script src="js/bullet.js"></script>    <script src="js/tank.js"></script>    <script src="js/num.js"></script>   <script src="js/menu.js"></script>    <script src="js/map.js"></script>   <script src="js/Collision.js"></script>   <script src="js/stage.js"></script>   <script src="js/main.js"></script>    <link rel="stylesheet" type="text/css" href="css/default.css" />    <style type="text/css">     #canvasDiv canvas{        position:absolute;      }   </style>  </head> <body>    <div class="container">     <head><h3>操作说明:玩家1:WASD上左下右,space射击;玩家2:方向键,enter射击。n下一关,p上一关。</h3></head>      <div class="main clearfix">       <div id="canvasDiv" >         <canvas id="wallCanvas" ></canvas>          <canvas id="tankCanvas" ></canvas>          <canvas id="grassCanvas" ></canvas>         <canvas id="overCanvas" ></canvas>          <canvas id="stageCanvas" ></canvas>       </div>      </div>          </div><!-- /container -->   <div style="text-align:center;"><p>来源:<a href="https://sunmenglei.blog.csdn.net/" target="_blank">孙叫兽的博客</a></p></div>  </body></html>

复制代码

css

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Header Style */.main,.container > header {  margin: 0 auto; /*padding: 2em;*/} .container { height: 100%;} .container > header {  padding-top: 20px;  padding-bottom: 20px; text-align: center; background: rgba(0,0,0,0.01);} .container > header h1 { font-size: 2.625em; line-height: 1.3; margin: 0;  font-weight: 300;} .container > header span { display: block; font-size: 60%; opacity: 0.3; padding: 0 0 0.6em 0.1em;} /* Main Content */.main {  /*max-width: 69em;*/  width: 100%;  height: 100%; overflow: hidden;}.demo-scroll{ overflow-y: scroll; width: 100%;  height: 100%;}.column { float: left;  width: 50%; padding: 0 2em; min-height: 300px;  position: relative;} .column:nth-child(2) { box-shadow: -1px 0 0 rgba(0,0,0,0.1);} .column p {  font-weight: 300; font-size: 2em; padding: 0; margin: 0;  text-align: right;  line-height: 1.5;} /* To Navigation Style */.htmleaf-top {  background: #fff; background: rgba(255, 255, 255, 0.6); text-transform: uppercase;  width: 100%;  font-size: 0.69em;  line-height: 2.2;} .htmleaf-top a { padding: 0 1em; letter-spacing: 0.1em;  color: #888;  display: inline-block;} .htmleaf-top a:hover {  background: rgba(255,255,255,0.95); color: #333;} .htmleaf-top span.right { float: right;} .htmleaf-top span.right a {  float: left;  display: block;} .htmleaf-icon:before { font-family: 'codropsicons';  margin: 0 4px;  speak: none;  font-style: normal; font-weight: normal;  font-variant: normal; text-transform: none; line-height: 1; -webkit-font-smoothing: antialiased;}   /* Demo Buttons Style */.htmleaf-demos {  padding-top: 1em; font-size: 0.9em;} .htmleaf-demos a { display: inline-block;  margin: 0.2em;  padding: 0.45em 1em;  background: #999; color: #fff;  font-weight: 700; border-radius: 2px;} .htmleaf-demos a:hover,.htmleaf-demos a.current-demo,.htmleaf-demos a.current-demo:hover { opacity: 0.6;} .htmleaf-nav { text-align: center;} .htmleaf-nav a { display: inline-block;  margin: 20px auto;  padding: 0.3em;}.bb-custom-wrapper {  width: 420px; position: relative; margin: 0 auto 40px;  text-align: center;}/* Demo Styles */ .demo-1 body {  color: #87968e; background: #fff2e3;} .demo-1 a { color: #72b890;} .demo-1 .htmleaf-demos a { background: #72b890;  color: #fff;} .demo-2 body {  color: #fff;  background: #c05d8e;} .demo-2 a { color: #d38daf;} .demo-2 a:hover,.demo-2 a:active { color: #fff;} .demo-2 .htmleaf-demos a {  background: #883b61;  color: #fff;} .demo-2 .htmleaf-top a:hover {  background: rgba(255,255,255,0.3);  color: #333;} .demo-3 body {  color: #87968e; background: #fff2e3;} .demo-3 a { color: #ea5381;} .demo-3 .htmleaf-demos a { background: #ea5381;  color: #fff;} .demo-4 body {  color: #999;  background: #fff2e3;  overflow: hidden;} .demo-4 a {  color: #1baede;} .demo-4 a:hover,.demo-4 a:active { opacity: 0.6;} .demo-4 .htmleaf-demos a { background: #1baede;  color: #fff;} .demo-5 body {  background: #fffbd6;}/****/.related { /*margin-top: 5em;*/  color: #fff;  background: #333; text-align: center; font-size: 1.25em;  padding: 3em 0; overflow: hidden;} .related a { display: inline-block;  text-align: left; margin: 20px auto;  padding: 10px 20px; opacity: 0.8; -webkit-transition: opacity 0.3s; transition: opacity 0.3s; -webkit-backface-visibility: hidden;} .related a:hover,.related a:active {  opacity: 1;} .related a img { max-width: 100%;} .related a h3 { font-weight: 300; margin-top: 0.15em; color: #fff;} @media screen and (max-width: 40em) {   .htmleaf-icon span {    display: none;  }   .htmleaf-icon:before {    font-size: 160%;    line-height: 2; } } @media screen and (max-width: 46.0625em) {  .column {   width: 100%;    min-width: auto;    min-height: auto;   padding: 1em;   }   .column p {   text-align: left;   font-size: 1.5em; }   .column:nth-child(2) {    box-shadow: 0 -1px 0 rgba(0,0,0,0.1); }} @media screen and (max-width: 25em) {  .htmleaf-icon span {    display: none;  } }

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核心 js

/** * 检测2个物体是否碰撞 * @param object1 物体1 * @param object2 物体2 * @param overlap 允许重叠的大小 * @returns {Boolean} 如果碰撞了,返回true */function CheckIntersect(object1, object2, overlap){ //    x-轴                      x-轴  //  A1------>B1 C1              A2------>B2 C2  //  +--------+   ^              +--------+   ^  //  | object1|   | y-轴         | object2|   | y-轴 //  |        |   |              |        |   |  //  +--------+  D1              +--------+  D2  //  //overlap是重叠的区域值  A1 = object1.x + overlap; B1 = object1.x + object1.size - overlap;  C1 = object1.y + overlap; D1 = object1.y + object1.size - overlap;  A2 = object2.x + overlap; B2 = object2.x + object2.size - overlap;  C2 = object2.y + overlap; D2 = object2.y + object2.size - overlap;  //假如他们在x-轴重叠  if(A1 >= A2 && A1 <= B2    || B1 >= A2 && B1 <= B2) {   //判断y-轴重叠   if(C1 >= C2 && C1 <= D2 || D1 >= C2 && D1 <= D2)    {     return true;    } } return false;} /** * 坦克与地图块碰撞 * @param tank 坦克对象 * @param mapobj 地图对象 * @returns {Boolean} 如果碰撞,返回true */function tankMapCollision(tank,mapobj){  //移动检测,记录最后一次的移动方向,根据方向判断+-overlap, var tileNum = 0;//需要检测的tile数  var rowIndex = 0;//map中的行索引 var colIndex = 0;//map中的列索引 var overlap = 3;//允许重叠的大小   //根据tank的x、y计算出map中的row和col if(tank.dir == UP){   rowIndex = parseInt((tank.tempY + overlap  - mapobj.offsetY)/mapobj.tileSize);    colIndex = parseInt((tank.tempX + overlap- mapobj.offsetX)/mapobj.tileSize);  }else if(tank.dir == DOWN){   //向下,即dir==1的时候,行索引的计算需要+tank.Height    rowIndex = parseInt((tank.tempY - overlap - mapobj.offsetY + tank.size)/mapobj.tileSize);   colIndex = parseInt((tank.tempX + overlap- mapobj.offsetX)/mapobj.tileSize);  }else if(tank.dir == LEFT){   rowIndex = parseInt((tank.tempY + overlap- mapobj.offsetY)/mapobj.tileSize);    colIndex = parseInt((tank.tempX + overlap - mapobj.offsetX)/mapobj.tileSize); }else if(tank.dir == RIGHT){    rowIndex = parseInt((tank.tempY + overlap- mapobj.offsetY)/mapobj.tileSize);    //向右,即dir==3的时候,列索引的计算需要+tank.Height    colIndex = parseInt((tank.tempX - overlap - mapobj.offsetX + tank.size)/mapobj.tileSize); } if(rowIndex >= mapobj.HTileCount || rowIndex < 0 || colIndex >= mapobj.wTileCount || colIndex < 0){   return true;  } if(tank.dir == UP || tank.dir == DOWN){   var tempWidth = parseInt(tank.tempX - map.offsetX - (colIndex)*mapobj.tileSize + tank.size - overlap);//去除重叠部分    if(tempWidth % mapobj.tileSize == 0 ){      tileNum = parseInt(tempWidth/mapobj.tileSize);    }else{      tileNum = parseInt(tempWidth/mapobj.tileSize) + 1;    }   for(var i=0;i<tileNum && colIndex+i < mapobj.wTileCount ;i++){      var mapContent = mapobj.mapLevel[rowIndex][colIndex+i];     if(mapContent == WALL || mapContent == GRID || mapContent == WATER || mapContent == HOME || mapContent == ANOTHREHOME){       if(tank.dir == UP){         tank.y = mapobj.offsetY + rowIndex * mapobj.tileSize + mapobj.tileSize - overlap;       }else if(tank.dir == DOWN){         tank.y = mapobj.offsetY + rowIndex * mapobj.tileSize - tank.size + overlap;       }       return true;      }   } }else{    var tempHeight = parseInt(tank.tempY - map.offsetY - (rowIndex)*mapobj.tileSize + tank.size - overlap);//去除重叠部分   if(tempHeight % mapobj.tileSize == 0 ){     tileNum = parseInt(tempHeight/mapobj.tileSize);   }else{      tileNum = parseInt(tempHeight/mapobj.tileSize) + 1;   }   for(var i=0;i<tileNum && rowIndex+i < mapobj.HTileCount;i++){     var mapContent = mapobj.mapLevel[rowIndex+i][colIndex];     if(mapContent == WALL || mapContent == GRID || mapContent == WATER || mapContent == HOME || mapContent == ANOTHREHOME){       if(tank.dir == LEFT){         tank.x = mapobj.offsetX + colIndex * mapobj.tileSize + mapobj.tileSize - overlap;       }else if(tank.dir == RIGHT){          tank.x = mapobj.offsetX + colIndex * mapobj.tileSize - tank.size + overlap;       }       return true;      }   } } return false;} /** * 子弹与地图块的碰撞 * @param bullet 子弹对象 * @param mapobj 地图对象 */function bulletMapCollision(bullet,mapobj){  var tileNum = 0;//需要检测的tile数  var rowIndex = 0;//map中的行索引 var colIndex = 0;//map中的列索引 var mapChangeIndex = [];//map中需要更新的索引数组 var result = false;//是否碰撞 //根据bullet的x、y计算出map中的row和col if(bullet.dir == UP){   rowIndex = parseInt((bullet.y - mapobj.offsetY)/mapobj.tileSize);   colIndex = parseInt((bullet.x - mapobj.offsetX)/mapobj.tileSize); }else if(bullet.dir == DOWN){   //向下,即dir==1的时候,行索引的计算需要+bullet.Height    rowIndex = parseInt((bullet.y - mapobj.offsetY + bullet.size)/mapobj.tileSize);   colIndex = parseInt((bullet.x - mapobj.offsetX)/mapobj.tileSize); }else if(bullet.dir == LEFT){   rowIndex = parseInt((bullet.y - mapobj.offsetY)/mapobj.tileSize);   colIndex = parseInt((bullet.x - mapobj.offsetX)/mapobj.tileSize); }else if(bullet.dir == RIGHT){    rowIndex = parseInt((bullet.y - mapobj.offsetY)/mapobj.tileSize);   //向右,即dir==3的时候,列索引的计算需要+bullet.Height    colIndex = parseInt((bullet.x - mapobj.offsetX + bullet.size)/mapobj.tileSize); } if(rowIndex >= mapobj.HTileCount || rowIndex < 0 || colIndex >= mapobj.wTileCount || colIndex < 0){   return true;  }   if(bullet.dir == UP || bullet.dir == DOWN){   var tempWidth = parseInt(bullet.x - map.offsetX - (colIndex)*mapobj.tileSize + bullet.size);    if(tempWidth % mapobj.tileSize == 0 ){      tileNum = parseInt(tempWidth/mapobj.tileSize);    }else{      tileNum = parseInt(tempWidth/mapobj.tileSize) + 1;    }   for(var i=0;i<tileNum && colIndex+i < mapobj.wTileCount ;i++){      var mapContent = mapobj.mapLevel[rowIndex][colIndex+i];     if(mapContent == WALL || mapContent == GRID || mapContent == HOME || mapContent == ANOTHREHOME){        //bullet.distroy();       result = true;        if(mapContent == WALL){         //墙被打掉          mapChangeIndex.push([rowIndex,colIndex+i]);       }else if(mapContent == GRID){                 }else{          isGameOver = true;          break;        }     }   } }else{    var tempHeight = parseInt(bullet.y - map.offsetY - (rowIndex)*mapobj.tileSize + bullet.size);   if(tempHeight % mapobj.tileSize == 0 ){     tileNum = parseInt(tempHeight/mapobj.tileSize);   }else{      tileNum = parseInt(tempHeight/mapobj.tileSize) + 1;   }   for(var i=0;i<tileNum && rowIndex+i < mapobj.HTileCount;i++){     var mapContent = mapobj.mapLevel[rowIndex+i][colIndex];     if(mapContent == WALL || mapContent == GRID || mapContent == HOME || mapContent == ANOTHREHOME){        //bullet.distroy();       result = true;        if(mapContent == WALL){         //墙被打掉          mapChangeIndex.push([rowIndex+i,colIndex]);       }else if(mapContent == GRID){                 }else{          isGameOver = true;          break;        }     }   } } //更新地图  map.updateMap(mapChangeIndex,0);  return result;}

复制代码

感兴趣的小伙伴也可以下载体验一下,勾起了慢慢的童年回忆。

源码地址:

https://download.csdn.net/download/weixin_41937552/18501741

 

好啦,本期内容就分享到这里,我们下期见!

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