77 lines
1.3 KiB
HTML
77 lines
1.3 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
|
|
<html xmlns="http://www.w3c.org/1999/xhtml">
|
|
<head>
|
|
<title>Snake</title>
|
|
<style type='text/css'>
|
|
* {
|
|
margin:0;
|
|
padding:0;
|
|
}
|
|
|
|
body {
|
|
position:absolute;
|
|
top:50%;
|
|
left:50%;
|
|
margin-top:-200px;
|
|
}
|
|
|
|
div {
|
|
width:10px;
|
|
height:10px;
|
|
float:left;
|
|
top:200px;
|
|
position:relative;
|
|
background:#000;
|
|
}
|
|
</style>
|
|
<script type='text/javascript'>
|
|
len=40
|
|
|
|
d=document
|
|
px="px"
|
|
stopped=false
|
|
function snake() {
|
|
nodetop=200
|
|
for (i=0;i<d.body.childNodes.length;i++) {
|
|
node=d.body.childNodes[i]
|
|
top=node.offsetTop
|
|
oldtop=nodetop
|
|
do {
|
|
rand=Math.floor(Math.random()*18+1)
|
|
if (rand>9) rand=rand-19
|
|
|
|
nodetop=top+rand
|
|
if (nodetop<0) nodetop=0
|
|
} while (nodetop<oldtop-9 || nodetop>oldtop+9)
|
|
node.style.top=nodetop+px
|
|
}
|
|
t=setTimeout("snake()",1)
|
|
}
|
|
|
|
function buildsnake() {
|
|
d.body.style.marginLeft="-"+len*5+"px"
|
|
for (i=0; i<len; i++) {
|
|
ne=document.createElement("div")
|
|
d.body.appendChild(ne)
|
|
}
|
|
snake()
|
|
}
|
|
|
|
function action() {
|
|
if (stopped) {
|
|
t=setTimeout("snake()",1)
|
|
stopped=false
|
|
document.title="Snake"
|
|
}
|
|
else {
|
|
clearTimeout(t)
|
|
stopped=true
|
|
document.title+=" :: PAUSED"
|
|
}
|
|
}
|
|
window.onload=buildsnake
|
|
d.onclick=action
|
|
</script>
|
|
</head>
|
|
<body></body>
|
|
</html> |