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老弟教你用CSS和JS实现曾经风靡一时的微信打飞机游戏
source link: https://blog.51cto.com/zhanjq/5585017
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Table of Contents
定义游戏页面
通过HTML定义一个游戏页面。代码如下：
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title></title>
<meta http-equiv="content" content="text/html" charset="utf-8"/>
<link rel="stylesheet" type="text/css" href="css/hitPlane.css"/>
</head>
<body>
<div id="contentdiv">
<div id="startdiv">
<button onclick="begin()">开始游戏</button>
</div>
<div id="maindiv">
<div id="scorediv">
<label>分数：</label>
<label id="label">0</label>
</div>
<div id="suspenddiv">
<button>继续</button><br/>
<button>重新开始</button><br/>
<button>回到主页</button>
</div>
<div id="enddiv">
<p class="plantext">飞机大战分数</p>
<p id="planscore">0</p>
<div><button onclick="jixu()">继续</button></div>
</div>
</div>
<div>
<button><a rel="nofollow" href="https://blog.csdn.net/qq_35427589" target="_self">help</a></button>
</div>
</div>
<script type="text/javascript" src="js/hitPlane.js"></script>
</body>
</html>
定义页面样式
通过CSS定义游戏页面样式，代码如下：
*{
margin: 0;
padding: 0;
}
#contentdiv{
position: absolute;
left: 500px;
}
#startdiv{
width: 320px;
height: 568px;
background-image: url(../image/开始背景.png);
}
button{
outline: none;
}
#startdiv button{
position: absolute;
top: 500px;
left: 82px;
width: 150px;
height: 30px;
border: 1px solid black;
border-radius: 30px;
background-color: #c4c9ca;
}
#maindiv{
width: 320px;
height: 568px;
background-image:url(../image/background_1.png) ;
display: none;
}
#maindiv img{
position: absolute;
z-index: 1;
}
#scorediv{
font-size: 16px;
font-weight: bold;
position: absolute;
top: 10px;
left: 10px;
display: none;
}
#scorediv{
font-size: 18px;
font-weight: bold;
}
#suspenddiv{
position: absolute;
top: 210px;
left: 82px;
display: none;
z-index: 2;
}
#suspenddiv button{
width: 150px;
height: 30px;
margin-bottom: 20px;
border: 1px solid black;
border-radius: 30px;
background-color: #c4c9ca;
}
#enddiv{
position: absolute;
top: 210px;
left: 75px;
border: 1px solid gray;
border-radius: 5px;
text-align: center;
background-color:#d7ddde;
display: none;
z-index: 2;
}
.plantext{
width: 160px;
height: 30px;
line-height: 30px;
font-size: 16px;
font-weight: bold;
}
#planscore{
width: 160px;
height: 80px;
line-height: 80px;
border-top: 1px solid gray;
border-bottom: 1px solid gray;
font-size: 16px;
font-weight: bold;
}
#enddiv div{
width: 160px;
height: 50px;
}
#enddiv div button{
margin-top:10px ;
width: 90px;
height: 30px;
border: 1px solid gray;
border-radius: 30px;
}
效果如下：
定义相关动作和事件
通过JS脚本定义游戏相关动作和触发的事件效果，代码如下：
//获得主界面
var mainDiv=document.getElementById("maindiv");
//获得开始界面
var startdiv=document.getElementById("startdiv");
//获得游戏中分数显示界面
var scorediv=document.getElementById("scorediv");
//获得分数界面
var scorelabel=document.getElementById("label");
//获得暂停界面
var suspenddiv=document.getElementById("suspenddiv");
//获得游戏结束界面
var enddiv=document.getElementById("enddiv");
//获得游戏结束后分数统计界面
var planscore=document.getElementById("planscore");
//初始化分数
var scores=0;
/*
创建飞机类
*/
function plan(hp,X,Y,sizeX,sizeY,score,dietime,sudu,boomimage,imagesrc){
this.planX=X;
this.planY=Y;
this.imagenode=null;
this.planhp=hp;
this.planscore=score;
this.plansizeX=sizeX;
this.plansizeY=sizeY;
this.planboomimage=boomimage;
this.planisdie=false;
this.plandietimes=0;
this.plandietime=dietime;
this.plansudu=sudu;
//行为
/*
移动行为
*/
this.planmove=function(){
if(scores<=50000){
this.imagenode.style.top=this.imagenode.offsetTop+this.plansudu+"px";
}
else if(scores>50000&&scores<=100000){
this.imagenode.style.top=this.imagenode.offsetTop+this.plansudu+1+"px";
}
else if(scores>100000&&scores<=150000){
this.imagenode.style.top=this.imagenode.offsetTop+this.plansudu+2+"px";
}
else if(scores>150000&&scores<=200000){
this.imagenode.style.top=this.imagenode.offsetTop+this.plansudu+3+"px";
}
else if(scores>200000&&scores<=300000){
this.imagenode.style.top=this.imagenode.offsetTop+this.plansudu+4+"px";
}
else{
this.imagenode.style.top=this.imagenode.offsetTop+this.plansudu+5+"px";
}
}
this.init=function(){
this.imagenode=document.createElement("img");
this.imagenode.style.left=this.planX+"px";
this.imagenode.style.top=this.planY+"px";
this.imagenode.src=imagesrc;
mainDiv.appendChild(this.imagenode);
}
this.init();
}
/*
创建子弹类
*/
function bullet(X,Y,sizeX,sizeY,imagesrc){
this.bulletX=X;
this.bulletY=Y;
this.bulletimage=null;
this.bulletattach=1;
this.bulletsizeX=sizeX;
this.bulletsizeY=sizeY;
//行为
/*
移动行为
*/
this.bulletmove=function(){
this.bulletimage.style.top=this.bulletimage.offsetTop-20+"px";
}
this.init=function(){
this.bulletimage=document.createElement("img");
this.bulletimage.style.left= this.bulletX+"px";
this.bulletimage.style.top= this.bulletY+"px";
this.bulletimage.src=imagesrc;
mainDiv.appendChild(this.bulletimage);
}
this.init();
}
/*
创建单行子弹类
*/
function oddbullet(X,Y){
bullet.call(this,X,Y,6,14,"image/bullet1.png");
}
/*
创建敌机类
*/
function enemy(hp,a,b,sizeX,sizeY,score,dietime,sudu,boomimage,imagesrc){
plan.call(this,hp,random(a,b),-100,sizeX,sizeY,score,dietime,sudu,boomimage,imagesrc);
}
//产生min到max之间的随机数
function random(min,max){
return Math.floor(min+Math.random()*(max-min));
}
/*
创建本方飞机类
*/
function ourplan(X,Y){
var imagesrc="image/我的飞机.gif";
plan.call(this,1,X,Y,66,80,0,660,0,"image/本方飞机爆炸.gif",imagesrc);
this.imagenode.setAttribute('id','ourplan');
}
/*
创建本方飞机
*/
var selfplan=new ourplan(120,485);
//移动事件
var ourPlan=document.getElementById('ourplan');
var yidong=function(){
var oevent=window.event||arguments[0];
var chufa=oevent.srcElement||oevent.target;
var selfplanX=oevent.clientX-500;
var selfplanY=oevent.clientY;
ourPlan.style.left=selfplanX-selfplan.plansizeX/2+"px";
ourPlan.style.top=selfplanY-selfplan.plansizeY/2+"px";
// document.getElementsByTagName('img')[0].style.left=selfplanX-selfplan.plansizeX/2+"px";
// document.getElementsByTagName('img')[0]..style.top=selfplanY-selfplan.plansizeY/2+"px";
}
/*
暂停事件
*/
var number=0;
var zanting=function(){
if(number==0){
suspenddiv.style.display="block";
if(document.removeEventListener){
mainDiv.removeEventListener("mousemove",yidong,true);
bodyobj.removeEventListener("mousemove",bianjie,true);
}
else if(document.detachEvent){
mainDiv.detachEvent("onmousemove",yidong);
bodyobj.detachEvent("onmousemove",bianjie);
}
clearInterval(set);
number=1;
}
else{
suspenddiv.style.display="none";
if(document.addEventListener){
mainDiv.addEventListener("mousemove",yidong,true);
bodyobj.addEventListener("mousemove",bianjie,true);
}
else if(document.attachEvent){
mainDiv.attachEvent("onmousemove",yidong);
bodyobj.attachEvent("onmousemove",bianjie);
}
set=setInterval(start,20);
number=0;
}
}
//判断本方飞机是否移出边界,如果移出边界,则取消mousemove事件,反之加上mousemove事件
var bianjie=function(){
var oevent=window.event||arguments[0];
var bodyobjX=oevent.clientX;
var bodyobjY=oevent.clientY;
if(bodyobjX<505||bodyobjX>815||bodyobjY<0||bodyobjY>568){
if(document.removeEventListener){
mainDiv.removeEventListener("mousemove",yidong,true);
}
else if(document.detachEvent){
mainDiv.detachEvent("onmousemove",yidong);
}
}
else{
if(document.addEventListener){
mainDiv.addEventListener("mousemove",yidong,true);
}
else if(document.attachEvent){
mainDiv.attachEvent("nomousemove",yidong);
}
}
}
//暂停界面重新开始事件
//function chongxinkaishi(){
// location.reload(true);
// startdiv.style.display="none";
// maindiv.style.display="block";
//}
var bodyobj=document.getElementsByTagName("body")[0];
if(document.addEventListener){
//为本方飞机添加移动和暂停
mainDiv.addEventListener("mousemove",yidong,true);
//为本方飞机添加暂停事件
selfplan.imagenode.addEventListener("click",zanting,true);
//为body添加判断本方飞机移出边界事件
bodyobj.addEventListener("mousemove",bianjie,true);
//为暂停界面的继续按钮添加暂停事件
suspenddiv.getElementsByTagName("button")[0].addEventListener("click",zanting,true);
// suspenddiv.getElementsByTagName("button")[1].addEventListener("click",chongxinkaishi,true);
//为暂停界面的返回主页按钮添加事件
suspenddiv.getElementsByTagName("button")[2].addEventListener("click",jixu,true);
}
else if(document.attachEvent){
//为本方飞机添加移动
mainDiv.attachEvent("onmousemove",yidong);
//为本方飞机添加暂停事件
selfplan.imagenode.attachEvent("onclick",zanting);
//为body添加判断本方飞机移出边界事件
bodyobj.attachEvent("onmousemove",bianjie);
//为暂停界面的继续按钮添加暂停事件
suspenddiv.getElementsByTagName("button")[0].attachEvent("onclick",zanting);
// suspenddiv.getElementsByTagName("button")[1].attachEvent("click",chongxinkaishi,true);
//为暂停界面的返回主页按钮添加事件
suspenddiv.getElementsByTagName("button")[2].attachEvent("click",jixu,true);
}
//初始化隐藏本方飞机
selfplan.imagenode.style.display="none";
/*
敌机对象数组
*/
var enemys=[];
/*
子弹对象数组
*/
var bullets=[];
var mark=0;
var mark1=0;
var backgroundPositionY=0;
/*
开始函数
*/
function start(){
mainDiv.style.backgroundPositionY=backgroundPositionY+"px";
backgroundPositionY+=0.5;
if(backgroundPositionY==568){
backgroundPositionY=0;
}
mark++;
/*
创建敌方飞机
*/
if(mark==20){
mark1++;
//中飞机
if(mark1%5==0){
enemys.push(new enemy(6,25,274,46,60,5000,360,random(1,3),"image/中飞机爆炸.gif","image/enemy3_fly_1.png"));
}
//大飞机
if(mark1==20){
enemys.push(new enemy(12,57,210,110,164,30000,540,1,"image/大飞机爆炸.gif","image/enemy2_fly_1.png"));
mark1=0;
}
//小飞机
else{
enemys.push(new enemy(1,19,286,34,24,1000,360,random(1,4),"image/小飞机爆炸.gif","image/enemy1_fly_1.png"));
}
mark=0;
}
/*
移动敌方飞机
*/
var enemyslen=enemys.length;
for(var i=0;i<enemyslen;i++){
if(enemys[i].planisdie!=true){
enemys[i].planmove();
}
/*
如果敌机超出边界,删除敌机
*/
if(enemys[i].imagenode.offsetTop>568){
mainDiv.removeChild(enemys[i].imagenode);
enemys.splice(i,1);
enemyslen--;
}
//当敌机死亡标记为true时，经过一段时间后清除敌机
if(enemys[i].planisdie==true){
enemys[i].plandietimes+=20;
if(enemys[i].plandietimes==enemys[i].plandietime){
mainDiv.removeChild(enemys[i].imagenode);
enemys.splice(i,1);
enemyslen--;
}
}
}
/*
创建子弹
*/
if(mark%5==0){
bullets.push(new oddbullet(parseInt(selfplan.imagenode.style.left)+31,parseInt(selfplan.imagenode.style.top)-10));
}
/*
移动子弹
*/
var bulletslen=bullets.length;
for(var i=0;i<bulletslen;i++){
bullets[i].bulletmove();
/*
如果子弹超出边界,删除子弹
*/
if(bullets[i].bulletimage.offsetTop<0){
mainDiv.removeChild(bullets[i].bulletimage);
bullets.splice(i,1);
bulletslen--;
}
}
/*
碰撞判断
*/
for(var k=0;k<bulletslen;k++){
for(var j=0;j<enemyslen;j++){
//判断碰撞本方飞机
if(enemys[j].planisdie==false){
if(enemys[j].imagenode.offsetLeft+enemys[j].plansizeX>=selfplan.imagenode.offsetLeft&&enemys[j].imagenode.offsetLeft<=selfplan.imagenode.offsetLeft+selfplan.plansizeX){
if(enemys[j].imagenode.offsetTop+enemys[j].plansizeY>=selfplan.imagenode.offsetTop+40&&enemys[j].imagenode.offsetTop<=selfplan.imagenode.offsetTop-20+selfplan.plansizeY){
//碰撞本方飞机，游戏结束，统计分数
selfplan.imagenode.src="image/本方飞机爆炸.gif";
enddiv.style.display="block";
planscore.innerHTML=scores;
if(document.removeEventListener){
mainDiv.removeEventListener("mousemove",yidong,true);
bodyobj.removeEventListener("mousemove",bianjie,true);
}
else if(document.detachEvent){
mainDiv.detachEvent("onmousemove",yidong);
bodyobj.removeEventListener("mousemove",bianjie,true);
}
clearInterval(set);
}
}
//判断子弹与敌机碰撞
if((bullets[k].bulletimage.offsetLeft+bullets[k].bulletsizeX>enemys[j].imagenode.offsetLeft)&&(bullets[k].bulletimage.offsetLeft<enemys[j].imagenode.offsetLeft+enemys[j].plansizeX)){
if(bullets[k].bulletimage.offsetTop<=enemys[j].imagenode.offsetTop+enemys[j].plansizeY&&bullets[k].bulletimage.offsetTop+bullets[k].bulletsizeY>=enemys[j].imagenode.offsetTop){
//敌机血量减子弹攻击力
enemys[j].planhp=enemys[j].planhp-bullets[k].bulletattach;
//敌机血量为0，敌机图片换为爆炸图片，死亡标记为true，计分
if(enemys[j].planhp==0){
scores=scores+enemys[j].planscore;
scorelabel.innerHTML=scores;
enemys[j].imagenode.src=enemys[j].planboomimage;
enemys[j].planisdie=true;
}
//删除子弹
mainDiv.removeChild(bullets[k].bulletimage);
bullets.splice(k,1);
bulletslen--;
break;
}
}
}
}
}
}
/*
开始游戏按钮点击事件
*/
var set;
function begin(){
startdiv.style.display="none";
mainDiv.style.display="block";
selfplan.imagenode.style.display="block";
scorediv.style.display="block";
/*
调用开始函数
*/
set=setInterval(start,20);
}
//游戏结束后点击继续按钮事件
function jixu(){
location.reload(true);
}
最终效果：
本文内容到此结束了，
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