求简单贪吃蛇代码（注释详细），没积分下不到--!,谢谢

仙人长 2010-06-14 04:09:36

谢谢！

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nix1874 2011-06-27

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~~wow

ccycyy 2010-06-15

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JS是什么，，我刚学j2,编了好几个类

JS才写这么点，好牛啊

24K純帥 2010-06-14

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用JS写的比较多，我就借花献佛了



<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> 

<html> 

<head> 

<meta http-equiv="Content-Type" content="text/html; charset=gb2312"> 

<title>snake (by cuixiping)</title> 

<!-- snake v1 (by cuixiping, 2009-8-7) --> 

<style type="text/css"> 

body { overflow:hidden; text-align:center; background-color:lavender; } 

div#main { position:relative; overflow:hidden; margin:10px auto; border: 1px solid green; width:400px; height:400px; } 

div#main div { position:absolute; font-size:0; background-color:green; width:10px; height:10px; } 

div#main div#head { background-color:red; } 

div#main div#food { background-color:green; } 

</style> 

</head> 

<body> 

<div>贪食蛇 v1(cuixiping, 2009-8-7)</div> 

<div id="main"><div id="head"></div><div id="food" style='visibility:hidden;'></div></div> 

<div>←↑→↓控制，长按加速，<Enter>暂停/继续。</div> 

<script type="text/javascript"> 

var w=40, h=40, n=10, m=200; 

var S={},X=[],B=[],L=[],T=[],dirs=[-1,-w,1,w],dir=2,ifood=-5,pause,f,timer,D=document; 

function rnd(){return Math.floor(Math.random()*w*h)} 

function newd(i){var div=main.appendChild(D.createElement("div"));p(div,i);return div;} 

function p(o,i){o.style.left=L[i]+'px';o.style.top=T[i]+'px';} 

function m(o,dir){p(o,i);} 

function $(id){ return D.getElementById(id); } 

function cli(){ clearInterval(tmr); } 

function sei(m){ tmr=setInterval(Main,m); } 



function Main(){ 

    if(pause)return; 

    var ox=X[0],x=ox%w,y=(ox-x)/h,eat,die; 

    X[0]+=dirs[dir]; 

    if(x==0&&dir==0||x==w-1&&dir==2||y==0&&dir==1||y==h-1&&dir==3)die='撞墙死掉啦！'; 

    else if(S[X[0]])die='咬到自己死掉啦！'; 

    if(die){ 

        cli(); 

        alert(die+'\n\n共吃到毒蘑菇【'+(B.length-1)+'】个'); 

        restart(); 

        return; 

    } 

    if(ifood==X[0]){ 

        eat=true; 

        food.style.visibility='hidden'; 

        ifood=-5; 

        B.unshift(newd(ox)); 

    }else if(ifood==-1){ 

        while(S[ifood=rnd()]); 

        food.style.visibility='visible'; 

        p(food,ifood); 

    }else if(ifood<-1){ifood++} 

    p(head,X[0]); 

    X.unshift(X[0]); 

    X[1]=ox; 

    S[X[0]]=true; 

    if(!eat){delete S[X.pop()];B.unshift(B.pop());p(B[0],ox);} 

} 

D.onkeydown=function(evt){ 

    var c=(evt||window.event).keyCode-37; 

    if(c==-24)pause=!pause; 

    else if(c>=0&&c<4){ 

        if(dir==c){if(!f){f=true;cli();sei(m/2)}} 

        else if(dir%2!=c%2)dir=c; 

    } 

} 

D.onkeyup=function(evt){ 

    var c=(evt||window.event).keyCode-37; 

    if(dir==c&&f){f=false;cli();sei(m)} 

} 



for(var i=w*h-1;i>=0;i--){L[i]=i%w*n, T[i]=(i-i%w)*n/h} 

var main=$("main"), head=$("head"), food=$("food"); 

function restart(){ 

S={},X=[],B=[],dir=2,ifood=-5,pause=f=false; 

while(main.childNodes.length>2)main.removeChild(main.lastChild); 

food.style.visibility='hidden'; 

X[1]=w*h/2; 

X[0]=X[1]+1; 

p(head,X[0]); 

B[0]=newd(X[1]); 

S[X[0]]=S[X[1]]=true; 

sei(m); 

} 

restart(); 

</script> 

</body> 

</html>