Add 'www/index.html'

2022-02-22 13:40:37 +00:00 · 2022-02-22 13:40:37 +00:00 · dd3fe26dec
parent a839bf231d
commit dd3fe26dec
1 changed files with 98 additions and 0 deletions
--- a/www/index.html
+++ b/www/index.html
@ -0,0 +1,98 @@
+<!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>