KeshavAnandCode/terminal-portfolio-site
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Unify website and documentation pages with a consistent terminal aesthetic

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Extract shared canvas animation module, refactor docs page to a terminal man-page style, and align overall visual language.

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This commit is contained in:
keshavananddev
2026-04-24 03:59:27 +00:00
parent 8b307b42b3
commit 9de9cca1aa
5 changed files with 597 additions and 455 deletions
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172
docs.html
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@@ -3,101 +3,111 @@
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Documentation - Terminal Portfolio</title>
<title>man ssh — keshavanand.net</title>
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link href="https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600&display=swap" rel="stylesheet">
</head>
<body>
<div class="container">
<div class="header">
<a href="/" class="back-link">$ cd ..</a>
<h1>Documentation</h1>
<p class="subtitle">The who, what, when, where, why</p>
<body class="docs">
<canvas id="field" aria-hidden="true"></canvas>
<main class="page">
<a href="/" class="back">$ cd ..</a>
<header class="head">
<h1>man <span class="accent">ssh</span></h1>
<p class="sub">portfolio(1)<span class="dot">·</span>keshavanand.net<span class="dot">·</span>v1</p>
</header>
<div class="rule" aria-hidden="true"></div>
<div class="command-box" id="commandBox">
<span class="line"><span class="dollar">$ </span><span class="typed">ssh portfolio@keshavanand.net</span></span>
<button class="action-btn" id="copyBtn" aria-label="Copy command">
<svg id="copyIcon" xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor">
<path id="copyPath" stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M8 16H6a2 2 0 01-2-2V6a2 2 0 012-2h8a2 2 0 012 2v2m-6 12h8a2 2 0 002-2v-8a2 2 0 00-2-2h-8a2 2 0 00-2 2v8a2 2 0 002 2z" />
</svg>
</button>
</div>
<div class="command-reference">
<div class="command-box">
<code id="sshCommand">ssh portfolio@keshavanand.net</code>
<button class="copy-btn" id="copyBtn" aria-label="Copy command">
<svg class="copy-icon" xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
<rect x="9" y="9" width="13" height="13" rx="2" ry="2"></rect>
<path d="M5 15H4a2 2 0 0 1-2-2V4a2 2 0 0 1 2-2h9a2 2 0 0 1 2 2v1"></path>
</svg>
<svg class="check-icon" xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
<polyline points="20 6 9 17 4 12"></polyline>
</svg>
</button>
</div>
</div>
<section class="block">
<h2><span class="hash">#</span> name</h2>
<p>
A keystroke-driven portfolio. The command above opens a real SSH session into a restricted, passwordless
account on a homeserver and drops you into a custom C++/FTXUI interface. <span class="fg">No web app, no JS, no installer — just the shell you already have.</span>
</p>
</section>
<div class="sections">
<section class="section">
<h2>What is it?</h2>
<p>
When executed in your terminal, this command renders a fully interactive shell portfolio experience.
Much like a digital resume or personal site, it allows you to explore my work and background through
a safe, <strong>secure</strong>, and purely text-based interface.
<strong>It is completely harmless to your system.</strong>
</p>
</section>
<section class="block">
<h2><span class="hash">#</span> synopsis</h2>
<pre class="code"><span class="dim">$</span> ssh <span class="accent">portfolio</span>@<span class="accent">keshavanand.net</span></pre>
</section>
<section class="section">
<h2>Command Breakdown</h2>
<div class="breakdown-grid">
<div class="breakdown-item">
<h3>ssh →</h3>
<p><strong>Secure Shell:</strong> The standard terminal protocol for logging into and controlling remote computers safely.</p>
</div>
<div class="breakdown-item">
<h3>portfolio →</h3>
<p><strong>User:</strong> A passwordless, restricted user on my homeserver meant for public access.</p>
</div>
<div class="breakdown-item">
<h3>keshavanand.net →</h3>
<p><strong>Domain:</strong> Points to a web record that directs your request to my server's public IP (gateway).</p>
</div>
<section class="block">
<h2><span class="hash">#</span> arguments</h2>
<dl class="defs">
<div class="def">
<dt><span class="accent">ssh</span></dt>
<dd>secure shell — the standard remote-login protocol. ubiquitous on macOS, linux, and modern windows.</dd>
</div>
</section>
<div class="def">
<dt><span class="accent">portfolio</span></dt>
<dd>a passwordless, restricted user account. the only thing it can do is launch the portfolio binary.</dd>
</div>
<div class="def">
<dt><span class="accent">keshavanand.net</span></dt>
<dd>resolves to my homeserver's public IP. the gateway forwards port 22 to the box.</dd>
</div>
</dl>
</section>
<section class="section">
<h2>How to Run</h2>
<ol class="steps">
<li>Copy the command above using the clipboard tool.</li>
<li>Open your native terminal (Terminal on Mac/Linux, PowerShell on Windows).</li>
<li>Paste the command and accept the host identity by typing 'yes' if prompted.</li>
<li>Press Enter to launch the interactive environment.</li>
<li>Terminate the process at any time by pressing <kbd>Ctrl + C</kbd>.</li>
</ol>
</section>
<section class="block">
<h2><span class="hash">#</span> usage</h2>
<ol class="steps">
<li><span class="step">01</span> copy the command above (click the box, or the icon).</li>
<li><span class="step">02</span> open your terminal — Terminal, iTerm, Alacritty, Windows Terminal, anything.</li>
<li><span class="step">03</span> paste, hit return. accept the host fingerprint with <kbd>yes</kbd> on first connect.</li>
<li><span class="step">04</span> navigate with arrow keys + return. quit any time with <kbd>Ctrl</kbd>+<kbd>C</kbd>.</li>
</ol>
</section>
<section class="section">
<h2>Code Logic</h2>
<p>
This command gives authenticated access to the <strong>'portfolio'</strong> user account on my private home server.
</p>
<p>
Instead of a standard bash or zsh shell, the user session triggers a custom-coded <strong>C++ executable</strong>.
This binary utilizes <strong>FTXUI</strong>—a sophisticated functional terminal user interface library—to handle
real-time rendering and input.
</p>
</section>
<section class="block">
<h2><span class="hash">#</span> implementation</h2>
<p>
The <span class="fg">portfolio</span> user's login shell isn't bash — it's a custom C++ binary that uses
<a href="https://github.com/ArthurSonzogni/FTXUI" target="_blank" rel="noopener noreferrer">FTXUI</a>
for layout, focus management, and rendering. Input is captured raw, output is repainted on a frame loop.
<span class="fg">It is sandboxed, read-only, and harmless to your machine.</span>
</p>
</section>
<section class="section">
<h2>Resources</h2>
<div class="resources-grid">
<a href="https://git.keshavanand.net/KeshavAnandCode/terminal-portfolio" target="_blank" rel="noopener noreferrer" class="resource-card">
<span>View Source Code</span>
</a>
<section class="block">
<h2><span class="hash">#</span> see also</h2>
<ul class="links">
<li>
<a href="https://git.keshavanand.net/KeshavAnandCode/terminal-portfolio" target="_blank" rel="noopener noreferrer">
<span class="arrow">→</span> source — git.keshavanand.net
</a>
</li>
<li>
<a href="/webshell">
<span class="arrow">→</span> run in browser — /webshell
</a>
</li>
</ul>
</section>
<a href="/webshell" class="resource-card">
<span>Run Web Shell</span>
</a>
</div>
</div>
</div>
<footer class="foot">
<span>keshavanand.net</span>
<span class="dot">·</span>
<span>portfolio(1)</span>
<span class="dot">·</span>
<span>last updated 2026</span>
</footer>
</main>
<div class="byline">// vibe coded to present human code</div>
<script type="module" src="/src/docs.ts"></script>
</body>
</html>

438
src/docs.css
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@@ -1,11 +1,13 @@
:root {
--base: #000000;
--text: #cdd6f4;
--subtext0: #a6adc8;
--surface0: #1a1a1a;
--surface1: #2a2a2a;
--green: #a6e3a1;
--blue: #89b4fa;
--bg: #0b0b0d;
--fg: #e6e6e6;
--dim: #6a6a72;
--dimmer: #4a4a52;
--line: #1c1c20;
--accent: #a6e3a1;
--accent-soft: rgba(166, 227, 161, 0.22);
--accent-strong: rgba(166, 227, 161, 0.55);
--mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}
* {
@@ -14,238 +16,320 @@
box-sizing: border-box;
}
body {
font-family: "JetBrains Mono", monospace;
background-color: var(--base);
color: var(--text);
min-height: 100vh;
padding: 2rem 1.5rem;
html { height: 100%; }
body.docs {
font-family: var(--mono);
background: var(--bg);
color: var(--fg);
-webkit-font-smoothing: antialiased;
text-rendering: optimizeLegibility;
min-height: 100%;
overflow-x: hidden;
overflow-y: auto;
position: relative;
line-height: 1.7;
}
.container {
max-width: 650px;
#field {
position: fixed;
inset: 0;
width: 100%;
height: 100%;
z-index: 0;
pointer-events: none;
display: block;
}
.page {
position: relative;
z-index: 1;
max-width: 720px;
margin: 0 auto;
padding: 3rem 1.75rem 6rem;
opacity: 0;
animation: fade 500ms ease-out 60ms forwards;
}
.header {
margin-bottom: 3rem;
}
@keyframes fade { to { opacity: 1; } }
.back-link {
color: var(--subtext0);
text-decoration: none;
font-size: 0.85rem;
margin-bottom: 2rem;
/* back link — same accent treatment as the home dollar */
.back {
display: inline-block;
transition: color 0.2s ease;
color: var(--dim);
text-decoration: none;
font-size: 0.78rem;
letter-spacing: 0.02em;
padding: 0.15rem 0;
transition: color 180ms ease, transform 180ms ease;
}
.back:hover {
color: var(--accent);
transform: translateX(-2px);
}
.back-link:hover {
color: var(--green);
}
.back-link:hover {
color: var(--green);
.head {
margin-top: 2.5rem;
}
h1 {
color: var(--text);
font-size: 2.5rem;
margin: 1rem 0 0.5rem 0;
font-weight: 600;
font-size: 1.65rem;
font-weight: 500;
letter-spacing: 0.01em;
color: var(--fg);
}
.subtitle {
color: var(--subtext0);
font-size: 1rem;
h1 .accent { color: var(--accent); }
.sub {
margin-top: 0.45rem;
color: var(--dim);
font-size: 0.78rem;
letter-spacing: 0.04em;
}
.command-reference {
margin: 2rem 0 3rem 0;
.sub .dot {
margin: 0 0.55rem;
color: var(--dimmer);
}
.rule {
height: 1px;
background: var(--line);
margin: 1.6rem 0 1.5rem;
}
/* command box — visually identical to the home version, sans caret/input */
.command-box {
background: rgba(26, 26, 26, 0.8);
border: 1px solid var(--green);
padding: 1.25rem;
width: 100%;
background: rgba(10, 10, 12, 0.55);
backdrop-filter: blur(2px);
-webkit-backdrop-filter: blur(2px);
border: 1px solid var(--line);
border-radius: 4px;
padding: 1.05rem 1.15rem;
font-size: 1.05rem;
font-weight: 500;
color: var(--fg);
display: flex;
align-items: center;
justify-content: space-between;
gap: 1rem;
transition: border-color 0.2s ease;
gap: 0;
transition: border-color 200ms ease, box-shadow 200ms ease;
position: relative;
overflow: hidden;
}
.command-box:hover {
border-color: var(--blue);
border-color: var(--accent-soft);
}
.command-box code {
color: var(--green);
font-size: 1.1rem;
flex: 1;
.command-box.copied {
border-color: var(--accent-strong);
box-shadow: 0 0 0 1px rgba(166, 227, 161, 0.10), 0 0 24px rgba(166, 227, 161, 0.10);
}
.copy-btn {
background: none;
border: none;
color: var(--subtext0);
cursor: pointer;
padding: 0.5rem;
border-radius: 4px;
transition: all 0.2s ease;
display: flex;
align-items: center;
position: relative;
}
.copy-btn:hover {
color: var(--green);
background-color: var(--surface0);
}
.copy-btn .check-icon {
display: none;
color: var(--green);
}
.copy-btn.copied .copy-icon {
display: none;
}
.copy-btn.copied .check-icon {
.line {
flex: 1 1 auto;
min-width: 0;
white-space: pre;
overflow: hidden;
text-overflow: clip;
display: block;
}
.sections {
display: flex;
flex-direction: column;
gap: 3rem;
.dollar {
color: var(--accent);
font-weight: 600;
}
.section {
.typed { color: var(--fg); }
.action-btn {
margin-left: 0.6rem;
background: none;
border: none;
color: var(--dim);
cursor: pointer;
padding: 0.2rem;
display: inline-flex;
align-items: center;
justify-content: center;
flex: 0 0 auto;
transition: color 180ms ease, transform 180ms ease;
}
.action-btn:hover { color: var(--fg); }
.action-btn svg { width: 16px; height: 16px; }
/* sections — terminal-style "# heading" then prose */
.block {
margin-top: 2.6rem;
}
h2 {
color: var(--green);
font-size: 1.5rem;
margin-bottom: 1.25rem;
font-size: 0.85rem;
font-weight: 500;
color: var(--fg);
letter-spacing: 0.04em;
text-transform: lowercase;
margin-bottom: 0.85rem;
}
h2 .hash {
color: var(--accent);
margin-right: 0.4rem;
font-weight: 600;
}
p {
color: var(--subtext0);
margin-bottom: 1rem;
font-size: 0.95rem;
.block p {
color: var(--dim);
font-size: 0.88rem;
line-height: 1.75;
}
strong {
color: var(--text);
font-weight: 600;
}
.block p .fg { color: var(--fg); }
.breakdown-grid {
.block p a {
color: var(--accent);
text-decoration: none;
border-bottom: 1px dashed transparent;
transition: border-color 180ms ease;
}
.block p a:hover { border-bottom-color: var(--accent-soft); }
/* code block — quieter, leaner than the command box */
.code {
font-family: var(--mono);
font-size: 0.92rem;
background: rgba(10, 10, 12, 0.4);
border-left: 1px solid var(--accent-soft);
padding: 0.8rem 1rem;
color: var(--fg);
overflow-x: auto;
}
.code .dim { color: var(--dim); margin-right: 0.5rem; }
.code .accent { color: var(--accent); }
/* arguments — definition list, mono leader */
.defs {
display: flex;
flex-direction: column;
gap: 0.9rem;
}
.def {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
gap: 1.5rem;
margin-top: 1.5rem;
}
.breakdown-item {
padding: 1rem;
border-bottom: 1px solid rgba(166, 227, 161, 0.1);
}
.breakdown-item:last-child {
border-bottom: none;
}
.breakdown-item h3 {
color: var(--blue);
font-size: 1rem;
margin-bottom: 0.5rem;
font-weight: 600;
}
.breakdown-item p {
font-size: 0.9rem;
line-height: 1.6;
grid-template-columns: minmax(160px, 200px) 1fr;
gap: 1rem;
padding: 0.5rem 0;
border-bottom: 1px dashed var(--line);
align-items: baseline;
}
.def:last-child { border-bottom: none; }
.def dt {
font-size: 0.85rem;
font-weight: 500;
}
.def dd {
color: var(--dim);
font-size: 0.85rem;
line-height: 1.7;
}
/* steps — numbered, monospace numerals */
.steps {
list-style: none;
counter-reset: step;
margin-top: 1rem;
}
.steps li {
counter-increment: step;
margin-bottom: 1.25rem;
display: flex;
gap: 1rem;
color: var(--subtext0);
font-size: 0.95rem;
flex-direction: column;
gap: 0.55rem;
}
.steps li::before {
content: counter(step, decimal-leading-zero);
color: var(--green);
font-weight: 600;
min-width: 2rem;
.steps li {
color: var(--dim);
font-size: 0.88rem;
line-height: 1.7;
}
.steps .step {
display: inline-block;
color: var(--accent);
margin-right: 0.85rem;
font-weight: 500;
}
kbd {
background-color: var(--surface0);
border: 1px solid var(--surface1);
padding: 0.2rem 0.5rem;
border-radius: 4px;
color: var(--text);
font-size: 0.9em;
font-family: inherit;
font-family: var(--mono);
font-size: 0.78em;
color: var(--fg);
border: 1px solid var(--line);
background: rgba(255, 255, 255, 0.03);
padding: 0.05rem 0.35rem;
border-radius: 3px;
margin: 0 0.1rem;
}
.resources-grid {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
gap: 1rem;
margin-top: 1.5rem;
/* see also — link list */
.links {
list-style: none;
display: flex;
flex-direction: column;
gap: 0.4rem;
}
.resource-card {
display: block;
padding: 0.75rem 1rem;
background: rgba(26, 26, 26, 0.5);
border: 1px solid rgba(166, 227, 161, 0.15);
.links a {
display: inline-flex;
align-items: baseline;
gap: 0.55rem;
color: var(--fg);
text-decoration: none;
color: var(--text);
margin: 0.5rem 0;
transition: border-color 0.2s ease, background-color 0.2s ease;
font-size: 0.88rem;
padding: 0.25rem 0;
transition: color 180ms ease, transform 180ms ease;
}
.links a:hover {
color: var(--accent);
transform: translateX(3px);
}
.links .arrow { color: var(--accent); }
/* footer — quiet, like a man-page footer */
.foot {
margin-top: 4rem;
padding-top: 1.2rem;
border-top: 1px solid var(--line);
color: var(--dimmer);
font-size: 0.7rem;
letter-spacing: 0.04em;
}
.foot .dot {
margin: 0 0.5rem;
}
.resource-card:hover {
border-color: var(--green);
background: rgba(26, 26, 26, 0.7);
/* whisper-quiet byline, identical to home */
.byline {
position: fixed;
left: 50%;
bottom: 1rem;
transform: translateX(-50%);
z-index: 1;
font-family: var(--mono);
font-size: 0.62rem;
letter-spacing: 0.02em;
color: rgba(106, 106, 114, 0.28);
pointer-events: none;
opacity: 0;
animation: fadeWhisper 900ms ease-out 1500ms forwards;
white-space: nowrap;
}
.resource-card span {
font-size: 0.9rem;
}
@keyframes fadeWhisper { to { opacity: 1; } }
@media (max-width: 768px) {
body {
padding: 1.5rem 1rem;
}
h1 {
font-size: 1.8rem;
}
h2 {
font-size: 1.1rem;
}
.breakdown-grid,
.resources-grid {
@media (max-width: 640px) {
.page { padding: 2rem 1.25rem 5rem; }
h1 { font-size: 1.35rem; }
.command-box { font-size: 0.92rem; padding: 0.9rem 1rem; }
.def {
grid-template-columns: 1fr;
gap: 0.25rem;
}
.byline { font-size: 0.56rem; }
}
@media (prefers-reduced-motion: reduce) {
.page, .byline { animation: none; opacity: 1; }
}

51
src/docs.ts
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@@ -1,16 +1,41 @@
import './docs.css';
import { initField } from './field';
const copyBtn = document.getElementById('copyBtn') as HTMLButtonElement;
const command = 'ssh portfolio@keshavanand.net';
initField('field');
if (copyBtn) {
copyBtn.addEventListener('click', async () => {
try {
await navigator.clipboard.writeText(command);
copyBtn.classList.add('copied');
setTimeout(() => copyBtn.classList.remove('copied'), 2000);
} catch (err) {
console.error('Failed to copy:', err);
}
});
}
const COMMAND = 'ssh portfolio@keshavanand.net';
const copyBtn = document.getElementById('copyBtn') as HTMLButtonElement | null;
const commandBox = document.getElementById('commandBox') as HTMLDivElement | null;
const copyPath = document.getElementById('copyPath') as unknown as SVGPathElement | null;
const COPY_PATH =
'M8 16H6a2 2 0 01-2-2V6a2 2 0 012-2h8a2 2 0 012 2v2m-6 12h8a2 2 0 002-2v-8a2 2 0 00-2-2h-8a2 2 0 00-2 2v8a2 2 0 002 2z';
const CHECK_PATH = 'M5 13l4 4L19 7';
let resetTimer: number | undefined;
async function copy() {
if (!commandBox || !copyPath) return;
try {
await navigator.clipboard.writeText(COMMAND);
copyPath.setAttribute('d', CHECK_PATH);
commandBox.classList.add('copied');
window.clearTimeout(resetTimer);
resetTimer = window.setTimeout(() => {
copyPath.setAttribute('d', COPY_PATH);
commandBox.classList.remove('copied');
}, 1400);
} catch {
/* clipboard blocked */
}
}
copyBtn?.addEventListener('click', (e) => {
e.stopPropagation();
copy();
});
commandBox?.addEventListener('click', (e) => {
if ((e.target as HTMLElement).closest('.action-btn')) return;
copy();
});

205
src/field.ts Normal file
View File

@@ -0,0 +1,205 @@
type Dot = { bx: number; by: number; ox: number; oy: number };
type Ripple = { x: number; y: number; born: number };
const SPACING = 26;
const RADIUS = 170;
const PUSH = 18;
const RIPPLE_LIFE = 900;
const RIPPLE_MAX = 520;
const RIPPLE_BAND = 70;
const RIPPLE_PUSH = 36;
const BASE_RGB = '230, 230, 230';
const ACCENT_RGB = '166, 227, 161';
const BASE_ALPHA = 0.11;
const PEAK_ALPHA = 0.9;
let canvas: HTMLCanvasElement | null = null;
let ctx: CanvasRenderingContext2D | null = null;
let dots: Dot[] = [];
const ripples: Ripple[] = [];
let dpr = 1;
let w = 0;
let h = 0;
let targetX = -9999;
let targetY = -9999;
let curX = -9999;
let curY = -9999;
let active = false;
let started = false;
function build() {
if (!canvas || !ctx) return;
dpr = Math.max(1, window.devicePixelRatio || 1);
w = window.innerWidth;
h = window.innerHeight;
canvas.width = Math.floor(w * dpr);
canvas.height = Math.floor(h * dpr);
canvas.style.width = w + 'px';
canvas.style.height = h + 'px';
ctx.setTransform(dpr, 0, 0, dpr, 0, 0);
dots = [];
const pad = SPACING;
for (let y = -pad; y < h + pad; y += SPACING) {
for (let x = -pad; x < w + pad; x += SPACING) {
dots.push({ bx: x, by: y, ox: 0, oy: 0 });
}
}
}
function onMove(x: number, y: number) {
targetX = x;
targetY = y;
active = true;
}
export function spawnRipple(x: number, y: number) {
ripples.push({ x, y, born: performance.now() });
if (ripples.length > 8) ripples.shift();
}
function frame() {
if (!ctx) return;
const now = performance.now();
if (!active) {
targetX = -9999;
targetY = -9999;
}
curX += (targetX - curX) * 0.18;
curY += (targetY - curY) * 0.18;
for (let i = ripples.length - 1; i >= 0; i--) {
if (now - ripples[i].born > RIPPLE_LIFE) ripples.splice(i, 1);
}
const rippleState = ripples.map((rp) => {
const p = (now - rp.born) / RIPPLE_LIFE;
return { x: rp.x, y: rp.y, radius: p * RIPPLE_MAX, fade: 1 - p };
});
ctx.clearRect(0, 0, w, h);
const r2 = RADIUS * RADIUS;
for (let i = 0; i < dots.length; i++) {
const d = dots[i];
const dx = d.bx - curX;
const dy = d.by - curY;
const d2 = dx * dx + dy * dy;
let tx = 0;
let ty = 0;
let strength = 0;
if (d2 < r2) {
const dist = Math.sqrt(d2) || 0.0001;
const t = 1 - dist / RADIUS;
strength = t * t;
tx = (dx / dist) * strength * PUSH;
ty = (dy / dist) * strength * PUSH;
}
let rippleStrength = 0;
for (let k = 0; k < rippleState.length; k++) {
const rp = rippleState[k];
const rdx = d.bx - rp.x;
const rdy = d.by - rp.y;
const rdist = Math.sqrt(rdx * rdx + rdy * rdy) || 0.0001;
const delta = Math.abs(rdist - rp.radius);
if (delta < RIPPLE_BAND) {
const ringT = 1 - delta / RIPPLE_BAND;
const s = ringT * ringT * rp.fade;
tx += (rdx / rdist) * s * RIPPLE_PUSH;
ty += (rdy / rdist) * s * RIPPLE_PUSH;
if (s > rippleStrength) rippleStrength = s;
}
}
d.ox += (tx - d.ox) * 0.22;
d.oy += (ty - d.oy) * 0.22;
const px = d.bx + d.ox;
const py = d.by + d.oy;
const visStrength = Math.min(1, strength + rippleStrength);
const alpha = BASE_ALPHA + (PEAK_ALPHA - BASE_ALPHA) * visStrength;
const size = 1 + visStrength * 1.6;
if (visStrength > 0.04) {
const blend = visStrength;
const r = Math.round(230 * (1 - blend) + 166 * blend);
const g = Math.round(230 * (1 - blend) + 227 * blend);
const b = Math.round(230 * (1 - blend) + 161 * blend);
ctx.fillStyle = `rgba(${r}, ${g}, ${b}, ${alpha})`;
} else {
ctx.fillStyle = `rgba(${BASE_RGB}, ${alpha})`;
}
ctx.fillRect(px - size / 2, py - size / 2, size, size);
}
if (active) {
const grad = ctx.createRadialGradient(curX, curY, 0, curX, curY, RADIUS);
grad.addColorStop(0, `rgba(${ACCENT_RGB}, 0.10)`);
grad.addColorStop(1, `rgba(${ACCENT_RGB}, 0)`);
ctx.fillStyle = grad;
ctx.fillRect(curX - RADIUS, curY - RADIUS, RADIUS * 2, RADIUS * 2);
}
for (let k = 0; k < rippleState.length; k++) {
const rp = rippleState[k];
if (rp.radius < 4) continue;
ctx.strokeStyle = `rgba(${ACCENT_RGB}, ${0.16 * rp.fade})`;
ctx.lineWidth = 1;
ctx.beginPath();
ctx.arc(rp.x, rp.y, rp.radius, 0, Math.PI * 2);
ctx.stroke();
}
requestAnimationFrame(frame);
}
export function initField(canvasId = 'field') {
if (started) return;
const el = document.getElementById(canvasId) as HTMLCanvasElement | null;
if (!el) return;
canvas = el;
ctx = canvas.getContext('2d');
if (!ctx) return;
started = true;
const reduceMotion = window.matchMedia('(prefers-reduced-motion: reduce)').matches;
build();
window.addEventListener('mousemove', (e) => onMove(e.clientX, e.clientY), { passive: true });
window.addEventListener('mouseleave', () => { active = false; });
window.addEventListener('click', (e) => spawnRipple(e.clientX, e.clientY));
window.addEventListener('touchmove', (e) => {
if (e.touches[0]) onMove(e.touches[0].clientX, e.touches[0].clientY);
}, { passive: true });
window.addEventListener('touchstart', (e) => {
if (e.touches[0]) spawnRipple(e.touches[0].clientX, e.touches[0].clientY);
}, { passive: true });
window.addEventListener('touchend', () => { active = false; });
window.addEventListener('resize', build);
window.addEventListener('scroll', () => {
// keep ripples / dots independent of page scroll — recompute baselines
}, { passive: true });
if (reduceMotion) {
if (!ctx) return;
ctx.fillStyle = `rgba(${BASE_RGB}, ${BASE_ALPHA})`;
for (const d of dots) ctx.fillRect(d.bx, d.by, 1, 1);
} else {
requestAnimationFrame(frame);
}
}

186
src/main.ts
View File

@@ -1,4 +1,5 @@
import './style.css';
import { initField, spawnRipple } from './field';
const COMMAND = 'ssh portfolio@keshavanand.net';
@@ -280,189 +281,6 @@ docsLink.addEventListener('click', (e) => {
/* ---------- cursor-reactive dot field + click ripples ---------- */
const canvas = document.getElementById('field') as HTMLCanvasElement;
const ctx = canvas.getContext('2d')!;
type Dot = { bx: number; by: number; ox: number; oy: number };
let dots: Dot[] = [];
let dpr = Math.max(1, window.devicePixelRatio || 1);
let w = 0;
let h = 0;
const SPACING = 26;
const RADIUS = 170;
const PUSH = 18;
let targetX = -9999;
let targetY = -9999;
let curX = -9999;
let curY = -9999;
let active = false;
type Ripple = { x: number; y: number; born: number };
const ripples: Ripple[] = [];
const RIPPLE_LIFE = 900;
const RIPPLE_MAX = 520;
const RIPPLE_BAND = 70;
const RIPPLE_PUSH = 36;
function build() {
dpr = Math.max(1, window.devicePixelRatio || 1);
w = window.innerWidth;
h = window.innerHeight;
canvas.width = Math.floor(w * dpr);
canvas.height = Math.floor(h * dpr);
canvas.style.width = w + 'px';
canvas.style.height = h + 'px';
ctx.setTransform(dpr, 0, 0, dpr, 0, 0);
dots = [];
const pad = SPACING;
for (let y = -pad; y < h + pad; y += SPACING) {
for (let x = -pad; x < w + pad; x += SPACING) {
dots.push({ bx: x, by: y, ox: 0, oy: 0 });
}
}
}
function onMove(x: number, y: number) {
targetX = x;
targetY = y;
active = true;
}
function spawnRipple(x: number, y: number) {
ripples.push({ x, y, born: performance.now() });
if (ripples.length > 8) ripples.shift();
}
window.addEventListener('mousemove', (e) => onMove(e.clientX, e.clientY), { passive: true });
window.addEventListener('mouseleave', () => { active = false; });
window.addEventListener('click', (e) => spawnRipple(e.clientX, e.clientY));
window.addEventListener('touchmove', (e) => {
if (e.touches[0]) onMove(e.touches[0].clientX, e.touches[0].clientY);
}, { passive: true });
window.addEventListener('touchstart', (e) => {
if (e.touches[0]) spawnRipple(e.touches[0].clientX, e.touches[0].clientY);
}, { passive: true });
window.addEventListener('touchend', () => { active = false; });
window.addEventListener('resize', build);
build();
const BASE_RGB = '230, 230, 230';
const ACCENT_RGB = '166, 227, 161';
const BASE_ALPHA = 0.11;
const PEAK_ALPHA = 0.9;
function frame() {
const now = performance.now();
if (!active) {
targetX = -9999;
targetY = -9999;
}
curX += (targetX - curX) * 0.18;
curY += (targetY - curY) * 0.18;
for (let i = ripples.length - 1; i >= 0; i--) {
if (now - ripples[i].born > RIPPLE_LIFE) ripples.splice(i, 1);
}
const rippleState = ripples.map((rp) => {
const p = (now - rp.born) / RIPPLE_LIFE;
return { x: rp.x, y: rp.y, radius: p * RIPPLE_MAX, fade: 1 - p };
});
ctx.clearRect(0, 0, w, h);
const r2 = RADIUS * RADIUS;
for (let i = 0; i < dots.length; i++) {
const d = dots[i];
const dx = d.bx - curX;
const dy = d.by - curY;
const d2 = dx * dx + dy * dy;
let tx = 0;
let ty = 0;
let strength = 0;
if (d2 < r2) {
const dist = Math.sqrt(d2) || 0.0001;
const t = 1 - dist / RADIUS;
strength = t * t;
tx = (dx / dist) * strength * PUSH;
ty = (dy / dist) * strength * PUSH;
}
let rippleStrength = 0;
for (let k = 0; k < rippleState.length; k++) {
const rp = rippleState[k];
const rdx = d.bx - rp.x;
const rdy = d.by - rp.y;
const rdist = Math.sqrt(rdx * rdx + rdy * rdy) || 0.0001;
const delta = Math.abs(rdist - rp.radius);
if (delta < RIPPLE_BAND) {
const ringT = 1 - delta / RIPPLE_BAND;
const s = ringT * ringT * rp.fade;
tx += (rdx / rdist) * s * RIPPLE_PUSH;
ty += (rdy / rdist) * s * RIPPLE_PUSH;
if (s > rippleStrength) rippleStrength = s;
}
}
d.ox += (tx - d.ox) * 0.22;
d.oy += (ty - d.oy) * 0.22;
const px = d.bx + d.ox;
const py = d.by + d.oy;
const visStrength = Math.min(1, strength + rippleStrength);
const alpha = BASE_ALPHA + (PEAK_ALPHA - BASE_ALPHA) * visStrength;
const size = 1 + visStrength * 1.6;
if (visStrength > 0.04) {
const blend = visStrength;
const r = Math.round(230 * (1 - blend) + 166 * blend);
const g = Math.round(230 * (1 - blend) + 227 * blend);
const b = Math.round(230 * (1 - blend) + 161 * blend);
ctx.fillStyle = `rgba(${r}, ${g}, ${b}, ${alpha})`;
} else {
ctx.fillStyle = `rgba(${BASE_RGB}, ${alpha})`;
}
ctx.fillRect(px - size / 2, py - size / 2, size, size);
}
if (active) {
const grad = ctx.createRadialGradient(curX, curY, 0, curX, curY, RADIUS);
grad.addColorStop(0, `rgba(${ACCENT_RGB}, 0.10)`);
grad.addColorStop(1, `rgba(${ACCENT_RGB}, 0)`);
ctx.fillStyle = grad;
ctx.fillRect(curX - RADIUS, curY - RADIUS, RADIUS * 2, RADIUS * 2);
}
for (let k = 0; k < rippleState.length; k++) {
const rp = rippleState[k];
if (rp.radius < 4) continue;
ctx.strokeStyle = `rgba(${ACCENT_RGB}, ${0.16 * rp.fade})`;
ctx.lineWidth = 1;
ctx.beginPath();
ctx.arc(rp.x, rp.y, rp.radius, 0, Math.PI * 2);
ctx.stroke();
}
requestAnimationFrame(frame);
}
if (!reduceMotion) {
requestAnimationFrame(frame);
} else {
ctx.fillStyle = `rgba(${BASE_RGB}, ${BASE_ALPHA})`;
for (const d of dots) ctx.fillRect(d.bx, d.by, 1, 1);
}
initField('field');
void caretEl;