HTML编写的贪吃蛇代码.doc

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html

head

title使用表格/title

/head

scriptlanguage=JavaScript

varfangxiang;

fangxiang=4;

varsk=newArray(18);

sk[0]=5,5;

sk[1]=5,4;

sk[2]=5,3;

varlong=3;

varzhanshichunweiba;

varshiwu=15,15;

varshudu=250;

varmovedong=true;

varshifouchongzhi=true;

functionkeydown(){

if(event.keyCode==38){

if(fangxiang!=2)fangxiang=1;

if(fangxiang==2)fangxiang=2;

}

if(event.keyCode==40){

if(fangxiang!=1)fangxiang=2;

if(fangxiang==1)fangxiang=1;

}

if(event.keyCode==37){

if(fangxiang!=4)fangxiang=3;

if(fangxiang==4)fangxiang=4;

}

if(event.keyCode==39){

if(fangxiang!=3)fangxiang=4;

if(fangxiang==3)fangxiang=3;

}

}

functionkaishi(){

if(shifouchongzhi){

shifouchongzhi=false;

document.getElementById(sk[0]).style.backgroundColor=red;

document.getElementById(sk[1]).style.backgroundColor=red;

document.getElementById(sk[2]).style.backgroundColor=red;

document.getElementById(shiwu).style.backgroundColor=blue;

move();

}

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else

alert(你要先重置);

}

functionchongzhi(){

shifouchongzhi=true;

shiwu=15,15;

shudu=250;

fangxiang=4;

sk[0]=5,5;

sk[1]=5,4;

sk[2]=5,3;

long=3;

varm=document.getElementsByTagName(td);

for(varn=0;n400;n++){

m[n].style.backgroundColor=yellow;

}

movedong=true;

}

functiondong(){

zhanshichunweiba=sk[long-1];

for(varm=long-1;m0;m--){

sk[m]=sk[m-1]

}

vari=sk[0].split(,);

if(fangxiang==1){i[0]--;sk[0]=i[0]+,+i[1]}

if(fangxiang==2){i[0]++;sk[0]=i[0]+,+i[1]}

if(fangxiang==3){i[1]--;sk[0]=i[0]+,+i[1]}

if(fangxiang==4){i[1]++;sk[0]=i[0]+,+i[1]}

}

functionzhenchanshengshiwu(){

varx;

vary;

x=Math.round(Math.random()*19);

y=Math.round(Math.random()*19);

shiwu=x+,+y;

chanshengshiwu();

}

functionchanshengshiwu(){

for(varm=0;mlong;m++)

if(shiwu==sk[m]){

zhenchanshengshiwu();

}

document.getElementById(shiwu).style.backgroundColor=blue;

}

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functionchishiwu(){

if(shiwu==sk[0]){

long++;

sk[long-1]=zhanshichunweiba;

document.getElementById(sk[long-1