JavaScript编写一个贪吃蛇游戏
作者：欧阳翠花
字体：[ ] 类型：转载 时间：
本文主要介绍了JavaScript写的一个贪吃蛇游戏的实例，具有很好的参考价值。下面跟着小编一起来看下吧
写的比较乱，有个逻辑错误：蛇吃了果果后应该是蛇尾加一节，写成了蛇头部增加一节- -。
可用键盘的上下左右键操作；
代码如下：
&style type="text/css"&
body{margin:0;padding:0;-webkit-user-select:-moz-user-select:-ms-user-select:user-select:-webkit-user-select:
-moz-user-select:
-ms-user-select:
user-select:}
table{border-collapse:width:500px}
td{border:1width:20height:20}
#wrap{width:500height:500background-color:#8B8386;margin:0position:border:1px solid #8B2500;}
#tar{width:20height:20position:background-color:#FFEE26;}
.num{width:20height:20background-color:#FDFF68;border:1border-radius:50%;position:}
input{color:font-size:20font-weight:position:display:width:60height:35}
#btn2{top:45left:0}
#btn4{top:90left:70}
#btn1{top:45left:140}
#btn3{top:0left:70}
#btn{position:background-color:width:200height:125}
#txt{width:80height:55background-color:position:left:60top:35color:font-size:16font-weight:line-height:55text-align:cursor:}
&div id="btn" style="left:520top:20px"&
&input type="button" value="→" id="btn1"/&
&input type="button" value="←" id="btn2"/&
&input type="button" value="↑" id="btn3"/&
&input type="button" value="↓" id="btn4"/&
&div id="txt"&点此拖动&/div&
&div id="wrap" style="left:20top:20px"&
&div id="tar"&&/div&
&tbody id="tb"&
&div class="num"&&/div&
&div class="num"&&/div&
&div class="num"&&/div&
&div class="num"&&/div&
&div class="num"&&/div&
&script type="text/javascript"&
var tb=document.getElementById('tb');
var wrap=document.getElementById('wrap');
var tr=new Array();
var td=new Array();
for(var i=0;i&25;i++)
//绘制地图
tr[i]=document.createElement('tr');
tb.appendChild(tr[i]);
for(var j=0;j&25;j++)
td[j]=document.createElement('td');
tr[i].appendChild(td[j]);
var tar=document.getElementById('tar');
//食物定位
function food()
a=Math.random()*460;
a=Math.floor(a/20)*20+20;
b=Math.random()*460;
b=Math.floor(b/20)*20+20;
tar.style.left=a+"px";
tar.style.top=b+"px";
var s=document.getElementsByClassName('num'); //定位蛇的位置
s[0].style.backgroundColor="#3EFF1A";
var x=300,y=400,f,d,p,Fraction=0,t=600,tt=60;
for(var k=0;k&s.k++)
s[k].style.left=x+"px";
s[k].style.top=y+20*k+"px";
function move(obj,direction)
//控制移动函数开始
clearTimeout(d);
s=document.getElementsByClassName('num');
var l=new Array();
l[0]=s[0].style.
var w=new Array();
w[0]=s[0].style.
//移动方向
s[0].style.left=x+"px";
s[0].style.top=y+"px";
for(var k1=1;k1&s.k1++)
l[k1]=s[k1].style.
w[k1]=s[k1].style.
s[k1].style.left=l[k1-1];
s[k1].style.top=w[k1-1];
if(parseInt(s[0].style.left)==parseInt(tar.style.left)&&parseInt(s[0].style.top)==parseInt(tar.style.top))
if(tt==0)tt=5;
var new_div=document.createElement('div');
new_div.className="num";
Fraction+=100;
new_div.style.top=s[0].style.
new_div.style.left=parseInt(s[0].style.left)+20+"px";
new_div.style.top=s[0].style.
new_div.style.left=parseInt(s[0].style.left)-20+"px";
new_div.style.left=s[0].style.
new_div.style.top=parseInt(s[0].style.top)-20+"px";
new_div.style.left=s[0].style.
new_div.style.top=parseInt(s[0].style.top)+20+"px";
s[0].parentNode.insertBefore(new_div,s[0]);
s[0].style.backgroundColor="#3EFF1A";
for(var k=1;k&s.k++)
s[k].style.backgroundColor="#FDFF68";
if(parseInt(s[0].style.left)&0||parseInt(s[0].style.left)&=500||parseInt(s[0].style.top)&0||parseInt(s[0].style.top)&=500)
alert("GAME OVER！"+"你的分数为："+Fraction+"分");
for(var k=0;k&5;k++)
s[k].style.left=x+"px";
s[k].style.top=y+20*k+"px";
for(var kk=s.length-1;kk&4;kk--)
s[kk].parentNode.removeChild(s[kk]);
for(k=1;k&s.k++)
if(parseInt(s[0].style.left)==parseInt(s[k].style.left)&&parseInt(s[0].style.top)==parseInt(s[k].style.top))
alert("GAME OVER！"+"你的分数为："+Fraction+"分");
for(var k=0;k&5;k++)
s[k].style.left=x+"px";
s[k].style.top=y+20*k+"px";
for(var kk=s.length-1;kk&4;kk--)
s[kk].parentNode.removeChild(s[kk]);
d=setTimeout(direction,t);
document.getElementById('btn1').onclick=function R() //绑定鼠标点击事件
x=parseInt(s[0].style.left);
y=parseInt(s[0].style.top);
if(parseInt(s[0].style.left)&parseInt(s[1].style.left))
move(x=x+20,R);
document.getElementById('btn2').onclick=function L()
x=parseInt(s[0].style.left);
y=parseInt(s[0].style.top);
if(parseInt(s[0].style.left)&parseInt(s[1].style.left))
move(x=x-20,L);
document.getElementById('btn3').onclick=function T()
x=parseInt(s[0].style.left);
y=parseInt(s[0].style.top);
if(parseInt(s[0].style.top)&parseInt(s[1].style.top))
move(y=y-20,T);
document.getElementById('btn4').onclick=function B()
x=parseInt(s[0].style.left);
y=parseInt(s[0].style.top);
if(parseInt(s[0].style.top)&parseInt(s[1].style.top))
move(y=y+20,B);
document.onkeydown=function(event)
//绑定键盘事件
var e=event||window.
if(e&&e.keyCode==39)
function R()
x=parseInt(s[0].style.left);
y=parseInt(s[0].style.top);
if(parseInt(s[0].style.left)&parseInt(s[1].style.left))
move(x=x+20,R);
if(e&&e.keyCode==37)
function L()
x=parseInt(s[0].style.left);
y=parseInt(s[0].style.top);
if(parseInt(s[0].style.left)&parseInt(s[1].style.left))
move(x=x-20,L);
if(e&&e.keyCode==38)
function T()
x=parseInt(s[0].style.left);
y=parseInt(s[0].style.top);
if(parseInt(s[0].style.top)&parseInt(s[1].style.top))
move(y=y-20,T);
if(e&&e.keyCode==40)
function B()
x=parseInt(s[0].style.left);
y=parseInt(s[0].style.top);
if(parseInt(s[0].style.top)&parseInt(s[1].style.top))
move(y=y+20,B);
var btn=document.getElementById('btn');
var btn_l,btn_t;
function btn_move()
btn_l=clientX-parseInt(wrap.style.left)
confirm("可用键盘的上下左右四个按键进行游戏操作！")
var btn=document.getElementById('btn');
//开始制作操作区拖动效果
var txt=document.getElementById('txt');
var new_x,new_y,bool=
txt.onmousedown=function ()
var eve=event||window.
new_x=eve.clientX-parseInt(btn.style.left);
new_y=eve.clientY-parseInt(btn.style.top);
btn.onmousemove=function btn_move(event)
var e=event||window.
btn.style.left=e.clientX-new_x;
btn.style.top=e.clientY-new_y;
if(parseInt(btn.style.left)&520)btn.style.left="520px";
if(parseInt(btn.style.top)&0)btn.style.top="0px";
if(parseInt(btn.style.top)&395)btn.style.top="395px";
document.body.onmouseup=function()
以上就是本文的全部内容，希望本文的内容对大家的学习或者工作能带来一定的帮助，同时也希望多多支持脚本之家！
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JavaScript 代码实现 Flappy Bird 游戏 - 文章 - 伯乐在线
& 65行 JavaScript 代码实现 Flappy Bird 游戏
Flappy Bird 无疑是2014年全世界最受关注的一款游戏。这款游戏是一位来自越南河内的独立游戏开发者阮哈东开发，形式简易但难度极高的休闲游戏，很容易让人上瘾。
这里给大家分享一篇这款游戏的 HTML5 版制作教程，借助
框架，只需65行 JavaScript 代码即可实现。
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前端技术（9）
Ajax/Jquery/js/ext/dwr（33）
原创整理不易，转载请注明出处：
代码下载地址：
直接上效果图：
通过左右下控制方向，上改变形状。
&!doctype html&&html&&head&&/head&&body&
&div id=&box& style=&width:252font:25px/25px 宋体;background:#000;color:#9f9;border:#999 20text-shadow:2px 3px 1px #0f0;&&&/div&
var domain=&&;
var author=&zuidaima&;
var map=eval(&[&+Array(23).join(&0x801,&)+&0xfff]&);
var tatris=[[0x6600],[0x],[0xc600,0x2640],[0x6c00,0x4620],[0xe0,0x],[0x,0x0],[0x,0x0]];
var keycom={&38&:&rotate(1)&,&40&:&down()&,&37&:&move(2,1)&,&39&:&move(0.5,-1)&};
var dia, pos, bak,
function start(){
dia=tatris[~~(Math.random()*7)];
bak=pos={fk:[],y:0,x:4,s:~~(Math.random()*4)};
rotate(0);
function over(){
document.onkeydown=
clearInterval(run);
alert(&GAME OVER&);
function update(t){
bak={fk:pos.fk.slice(0),y:pos.y,x:pos.x,s:pos.s};
for(var i=0,a2=&&; i&22; i++)
a2+=map[i].toString(2).slice(1,-1)+&&br/&&;
for(var i=0,n; i&4; i++)
if(/([^0]+)/.test(bak.fk[i].toString(2).replace(/1/g,&\u25a1&)))
a2=a2.substr(0,n=(bak.y+i+1)*15-RegExp.$_.length-4)+RegExp.$1+a2.slice(n+RegExp.$1.length);
document.getElementById(&box&).innerHTML=a2.replace(/1/g,&\u25a0&).replace(/0/g,&\u3000&);
function is(){
for(var i=0; i&4; i++)
if((pos.fk[i]&map[pos.y+i])!=0) return pos=
function rotate(r){
var f=dia[pos.s=(pos.s+r)%dia.length];
for(var i=0; i&4; i++)
pos.fk[i]=(f&&(12-i*4)&15)&&pos.x;
update(is());
function down(){
++pos.y;
for(var i=0; i&4 && pos.y+i&22; i++)
if((map[pos.y+i]|=pos.fk[i])==0xfff)
map.splice(pos.y+i,1), map.unshift(0x801);
if(map[1]!=0x801) return over();
function move(t,k){
pos.x+=k;
for(var i=0; i&4; i++)
pos.fk[i]*=t;
update(is());
document.onkeydown=function(e){
eval(keycom[(e?e:event).keyCode]);
run=setInterval(&down()&,400);
&/script&&/body&&/html&
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