98 lines
2.3 KiB
HTML
98 lines
2.3 KiB
HTML
<!DOCTYPE html>
|
|
<html lang="en">
|
|
<head>
|
|
<meta charset="UTF-8">
|
|
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
|
<title>The Sudo</title>
|
|
<style>
|
|
html,
|
|
body{
|
|
height: 100%;
|
|
margin: 0;
|
|
overflow: hidden;
|
|
}
|
|
|
|
body {
|
|
display: flex;
|
|
align-items: center;
|
|
justify-content: center;
|
|
background-color: black;
|
|
}
|
|
|
|
p {
|
|
line-height: 1;
|
|
width: 30px;
|
|
}
|
|
|
|
span {
|
|
display: block;
|
|
color: #b3ffc7;
|
|
font-size: 24px;
|
|
text-align: center;
|
|
width: 30px;
|
|
height: 30px;
|
|
opacity: 0;
|
|
font-family: Helvetica, sans-serif;
|
|
}
|
|
</style>
|
|
</head>
|
|
<body>
|
|
<script>
|
|
const columnCount = Math.floor(window.innerWidth / 30);
|
|
const rowCount = Math.floor(window.innerHeight / 30);
|
|
|
|
for(let i=0; i<columnCount; i++) {
|
|
const p = document.createElement('p');
|
|
setupColumn(p);
|
|
document.body.append(p);
|
|
}
|
|
|
|
function setupColumn(p) {
|
|
const delay = random(100, 300);
|
|
const duration = random(100, 2000);
|
|
const hasChildren = p.children.length > 0;
|
|
|
|
for(let j=0; j<rowCount; j++){
|
|
const span = hasChildren ? p.children.item(j) : document.createElement('span');
|
|
|
|
span.innerText = getRandomChar();
|
|
const animation = span.animate([
|
|
{ opacity: '1' },
|
|
{ opacity: '0.05' }
|
|
], {
|
|
duration: duration,
|
|
delay: delay + (j * 75), // add delay for every char
|
|
fill: 'forwards' // keep element with the last state of anim
|
|
});
|
|
|
|
// re build column after last char disappear
|
|
if(j === rowCount-1) {
|
|
animation.onfinish = () => {
|
|
setupColumn(p);
|
|
};
|
|
}
|
|
|
|
if(!hasChildren) {
|
|
p.appendChild(span);
|
|
}
|
|
}
|
|
}
|
|
|
|
function random(from, to) {
|
|
return Math.trunc(Math.random() * (to - from + 1) + from);
|
|
}
|
|
|
|
function getRandomChar() {
|
|
// some ranges for chars of latin and other alphabets
|
|
const charRanges = [
|
|
[0x3041, 0x30ff],
|
|
[0x0021, 0x007a],
|
|
[0x00bc, 0x02af]
|
|
];
|
|
|
|
const i = random(0, charRanges.length - 1);
|
|
return String.fromCharCode(random(charRanges[i][0], charRanges[i][1]));
|
|
}
|
|
</script>
|
|
</body>
|
|
</html> |