JS实现打砖块游戏

乐正烨熠
2023-03-14
本文向大家介绍JS实现打砖块游戏，包括了JS实现打砖块游戏的使用技巧和注意事项，需要的朋友参考一下
本文实例为大家分享了JS实现打砖块游戏的具体代码，供大家参考，具体内容如下
面向对象思想
<!DOCTYPE html>
<html>
 <head>
 <meta charset="utf-8">
 <title></title>
 <style type="text/css">
 #show{
 width: 200px;
 height: 600px;
 position: absolute;
 left:1122px ;
 top:50px;
 background-color: gray;
 color: blue;
 line-height: 100px;
 font-size: larger;
 align-self: center;
 }
 #lose{
 position: absolute;
 top: 300px;
 left: 300px;
 font-size: xx-large;
 display: none;
 }
 li{
 position: absolute;
 list-style-type: none;
 background-color: #000000;
 width: 90px;
 height: 30px;
 border: 1px solid white;
 }
 #box{
 position: absolute;
 width: 920px;
 height: 600px;
 left: 200px;
 top: 50px;
 border: 2px solid red;
 }
 #board{
 position: absolute;
 top:590px;
 left: 300px;
 width: 200px;
 height: 10px;
 background-color: black;
 }
 #bubble{
 position: absolute;
 top: 565px;
 left: 360px;
 width: 25px;
 height: 25px;
 background-color: #FF0000;
 border-radius: 50%;
 }
 </style>
 
 <script type="text/javascript">
 window.onload=function(){
 function $(id){
 return document.getElementById(id);
 }
 function rand(min,max){
 return Math.floor(Math.random()*(max-min+1))+min
 }
 
 //打砖块构造函数
 function BlockBreak(){
 this.box=$('box');//容器
 this.list=document.getElementsByTagName('li');//砖块
 this.board=$('board');//挡板
 this.ball=$('bubble');//小球
 this.fx=3;//横向
 
 this.fy=-3;//纵向
 this.leftInit=0;//砖块left初始值
 this.topInit=0;//砖块top初始值
 }
 //初始化功能 摆放每一个砖块的位置
 BlockBreak.prototype.init=function(){
 for(var i=0;i<this.list.length;i++){
 this.list[i].style.backgroundColor="rgb("+rand(0,255)+","+rand(0,255)+","+rand(0,255)+")";
 var x=this.leftInit*this.list[0].offsetWidth;
 var y=this.topInit;
 this.list[i].style.left=x+'px';
 this.list[i].style.top=y+'px';
 this.leftInit++

 //换行
 if((i+1)%10==0){
 this.leftInit=0;
 this.topInit+=this.list[0].offsetHeight;
 }
 
 }
 }
 //挡板运动
 
 BlockBreak.prototype.keydown=function(){
 var that=this;
 var mleft=false;
 var mright=false;
 
 //因为按键之后第一次跟第之后的移动之间会有延迟，这是操作系统的问题防止连按两次
 //所以就不把移动放在这里了，把治理放一个标志，移动放在定时器里
 document.onkeydown=function(e){
 var e=e||event;
 if(e.keyCode==37){
 mleft=true;
 }
 if(e.keyCode==39){
 mright=true;
 
 }
 }
 document.onkeyup=function(){
 mleft=false;
 mright=false;
 }
 setInterval(function(){
 
 console.log(mleft);
 if (mleft){
 that.board.style.left=that.board.offsetLeft-15+'px';
 if(that.board.offsetLeft<=0){
 that.board.style.left=0;
 }
 }else if(mright){
 that.board.style.left=that.board.offsetLeft+15+'px';
 if(that.board.offsetLeft>=720){
 that.board.style.left=720+'px';
 }
 } 
 
 },50) 
 
 
 }
 var times=0;
 var score=0;
 //小球运动
 BlockBreak.prototype.move=function(){
 var timer=null;
 var that=this;
 timer=setInterval(function(){
 that.ball.style.left=that.ball.offsetLeft+that.fx+'px';
 that.ball.style.top=that.ball.offsetTop+that.fy+'px';
 //小球四个方向反弹
 if(that.ball.offsetTop<=0){
 that.fy*=-1;
 }
 if(that.ball.offsetLeft<=0){
 that.fx*=-1;
 }
 if(that.ball.offsetLeft>=(that.box.offsetWidth-that.ball.offsetWidth)){
 that.fx*=-1;
 
 }
 if(that.ball.offsetTop>=(that.box.offsetHeight-that.ball.offsetHeight)){
 //游戏结束
 
 $('lose').style.display='block';
 clearInterval(timer);
 $('res').innerHTML='游戏结束'+"<br>";
 }
 //小球挡板碰撞反弹
 if(that.ball.offsetTop+that.ball.offsetHeight>=that.board.offsetTop){
 if(that.ball.offsetLeft+that.ball.offsetWidth>=that.board.offsetLeft){
 if(that.ball.offsetLeft<=that.board.offsetLeft+that.board.offsetWidth){
 that.fy*=-1;
 times++;
 $('times').innerHTML=times+'次'+'<br>';
 }
 }
 }
 //小球砖块反弹
 //以一个小球为基准 遍历所有砖块，找到满足条件的砖块
 for(var i=0;i<that.list.length;i++)
 {
 if(that.ball.offsetTop<=that.list[i].offsetTop+that.list[i].offsetHeight){
 if(that.ball.offsetLeft>=that.list[i].offsetLeft){
 if(that.ball.offsetLeft<=that.list[i].offsetLeft+that.list[i].offsetWidth){
 that.fy*=-1;
 that.list[i].style.display='none';
 score++;
 $('score').innerHTML=score+'分'+'<br>';
 }
 }
 }
 
 }
 
 },10)
 }
 var bb=new BlockBreak();
 bb.init();
 $('start').onclick=function(){
 $('times').innerHTML=0+'次'+'<br>';
 $('score').innerHTML=0+'分'+"<br>";
 $('res').innerHTML= "正在游戏"+"<br>";
 bb.keydown();
 bb.move();
 
 }
 
 }
 </script>
 </head>
 <body>
 <div id="container">
 <div id="show">
 <span id="info">游戏重要信息<br></span>
 <span>当前时间:</span>
 <span id="time">加载中...<br></span>
 <span>游戏状态:</span>
 <span id="res">加载中...<br></span>
 <span>挡板打球次数:</span>
 <span id="times">加载中...<br></span>
 <span>游戏得分:</span>
 <span id="score">加载中...</span>
 </div>
 
 
 
 <!----游戏区域--->
 <div id="box">
 <ul>
 <li></li>
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 <li></li>
 </ul>
 <div id="bubble"></div>
 <div id="board"></div>
 <div id="lose"><h1>Game Over!</h1></div>
 </div>
 
 <button type="button" id="start">开始游戏</button>
 
 </div>
 </body>
</html>
更多关于Js游戏的精彩文章，请查看专题：《JavaScript经典游戏玩不停》
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持小牛知识库。
JS实现打砖块游戏

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