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index.html
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<!-- @format -->
<!DOCTYPE html>
<html lang="en-GB">
<head>
<meta charset="utf-8" />
<meta tag="nositelinkssearchbox" />
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
<meta http-equiv="origin-trial" content="Ah+Gaagvf2Hnk5yshbNHYwzWyzzOvn+CwpGU+2Fhn1mrmREEC3471tCy1W0rbYB+BSaS84UU6ewo1sQLXVAUMA4AAABbeyJvcmlnaW4iOiJodHRwczovL3Nwb3RpZnkuYmVuamFtaW5nd3lubi5jb206NDQzIiwiZmVhdHVyZSI6Ildha2VMb2NrIiwiZXhwaXJ5IjoxNTk0MTY2Mzk5fQ==" />
<title>Spotify Starfield</title>
<link rel="stylesheet" href="/font/RedAlert.css" />
<link rel="stylesheet" href="index.css" />
<link rel="icon" type="image/png" sizes="192x192" href="/favicon.png" />
<link rel="manifest" href="/manifest.json" />
<meta name="theme-color" content="#000000" />
</head>
<body>
<main>
<article id="login">
<img src="/screenshot.png" />
<h1 id="logo">Spotify starfield</h1>
<a id="login-btn" href="https://accounts.spotify.com/authorize?client_id=6ed539a873ed442fac572b7f679833a9&redirect_uri=https%3A%2F%2Fspotify.benjamingwynn.com&scope=user-read-playback-state%20user-read-private%20user-read-email&response_type=token&state=123">Login through Spotify</a>
<p>Spotify starfield is a music visualizer made for Spotify. It generates a starfield of dots and lines, and then adjust the physics conditions and colors of the starfield as the music plays based off of data from the music, such as tempo, key, loudness and more.</p>
<h2>Privacy</h2>
<p>This website uses the official login portal provided by Spotify and has no access to your information other than current playback status, all data is processed locally and is never collected or sent to an external server.</p>
<p>This site contacts no other API other than Spotify.</p>
<h2>Technical</h2>
<p>This is is prototype, a proof-of-concept, performance won't be great.</p>
<p>Source code is <a href="https://github.com/benjamingwynn/spotify.benjamingwynn.com" target="noopener">available on Github.</a> This data is provided by <a href="https://developer.spotify.com/documentation/web-api/reference/#/operations/get-audio-analysis" target="noopener">Spotify's Analytics API</a></p>
<h3>
<a href="https://benjamingwynn.com" target="noopener"><small>created by Benjamin Gwynn</small></a>
</h3>
<p>
<small>This project is not affiliated, associated, authorized, endorsed by, or in any way officially connected with Spotify, or any of its subsidiaries or its affiliates. The official Spotify website can be found at <a href="https://spotify.com" target="noopener">https://spotify.com</a></small>
</p>
</article>
<article id="loading" hidden>
<h1>CONNECTING TO SPOTIFY...</h1>
<p>Loading visualization data from spotify. <a href="/">Cancel</a></p>
</article>
<article id="no-track" hidden>
<h2>No music playing</h2>
<p>To start the visualization you need to start playing music on Spotify.</p>
<p>You can play music using the Spotify app on any device, even this one.</p>
</article>
<article id="keyboard" hidden>
<div>
<h2>H</h2>
<h3>Hide all UI</h3>
</div>
<div>
<h2>F</h2>
<h3>Request fullscreen</h3>
</div>
<div>
<h2>D</h2>
<h3>Debugging information</h3>
</div>
<div>
<h2>R</h2>
<h3>Reload page</h3>
</div>
<div>
<h2>L</h2>
<h3>Toggle light/dark</h3>
</div>
<small>This overlay hides automatically if you don't move the mouse</small>
</article>
<div class="logger"><code class="logger-log"></code></div>
<article id="player" hidden>
<span id="player-meta">{song} - {artist}</span>
<span id="player-time">{current} / {end}</span>
</article>
<article id="settings" hidden>
<h1 style="margin: 0">secret settings</h1>
<h3 style="margin-bottom: 0.5em; color: pink">these are not supposed to be changed!</h3>
<div class="collection" id="spotify-settings">
<h2>Spotify</h2>
<label data-prop="BEAT_STRENGTH">
<span>beat strength</span>
<input type="range" min="0" max="60" value="30" step="1" />
<code>000</code>
</label>
<label data-prop="BEAT_RESISTANCE">
<span>beat resistance</span>
<input type="range" min="0" max="10" value="3" step="1" />
<code>000</code>
</label>
<label data-prop="BEAT_MIN_CONFIDENCE">
<span>beat min confidence</span>
<input type="range" min="0" max="2" value="0.15" step="0.05" />
<code>000</code>
</label>
<label data-prop="TATUM_MIN_CONFIDENCE">
<span>tatum min confidence</span>
<input type="range" min="0" max="2" value="0.45" step="0.05" />
<code>000</code>
</label>
<label data-prop="loudnessBaseline">
<span>loudnessBaseline</span>
<input type="range" min="1" max="50" step="1" />
<code>-</code>
</label>
<label data-prop="loudnessExtra">
<span>loudnessExtra</span>
<input type="range" min="1" max="50" step="1" />
<code>-</code>
</label>
<label data-prop="loudnessScale">
<span>loudnessScale</span>
<input type="range" min="1" max="50" step="1" />
<code>-</code>
</label>
<label data-prop="pushSpeedMax">
<span>pushSpeedMax</span>
<input type="range" min="0.1" max="5" step="0.1" />
<code>-</code>
</label>
<label data-prop="pushSpeedMin">
<span>pushSpeedMin</span>
<input type="range" min="0.1" max="5" step="0.1" />
<code>-</code>
</label>
<label data-prop="rotSpeedTempoDiv">
<span>rotSpeedTempoDiv</span>
<input type="range" min="1" max="1000" step="1" />
<code>-</code>
</label>
<label data-prop="connectionRadiusMinProduct">
<span>connectionRadiusMinProduct</span>
<input type="range" min="0.01" max="1" step="0.01" />
<code>-</code>
</label>
<label data-prop="tempoWorldSpeed">
<span>tempoWorldSpeed</span>
<input type="range" min="1" max="1000" step="1" />
<code>-</code>
</label>
<label data-prop="warpSpeedScaler">
<span>warpSpeedScaler</span>
<input type="range" min="0.001" max="1" step="0.001" />
<code>-</code>
</label>
<label data-prop="spawnRadiusProduct">
<span>spawnRadiusProduct</span>
<input type="range" min="1" max="10" step="1" />
<code>-</code>
</label>
<label data-prop="loudnessBaselineRadii">
<span>loudnessBaselineRadii</span>
<input type="range" min="1" max="100" step="1" />
<code>-</code>
</label>
<label data-prop="loudnessScaleRadii">
<span>loudnessScaleRadiir</span>
<input type="range" min="1" max="100" step="1" />
<code>-</code>
</label>
</div>
<div class="collection" id="starfield-settings">
<h2>Starfield</h2>
<label data-prop="rotationEnabled">
<span>rotation on</span>
<input type="range" min="0" max="1" step="1" value="1" />
<code>-</code>
</label>
<label data-prop="warpOn">
<span>warp on</span>
<input type="range" min="0" max="1" step="1" value="1" />
<code>-</code>
</label>
<label data-prop="starSpawnLimiter">
<span>starSpawnLimiter</span>
<input type="range" min="1" max="32" step="1" />
<code>-</code>
</label>
<label data-prop="STAR_RADIUS">
<span>star radius</span>
<input type="range" min="1" max="32" step="1" />
<code>-</code>
</label>
<label data-prop="minConnectionRadius">
<span>min c rad</span>
<input type="range" min="0" max="300" step="1" />
<code>-</code>
</label>
<label data-prop="maxConnectionRadius">
<span>max c rad</span>
<input type="range" min="0" max="300" step="1" />
<code>-</code>
</label>
<label data-prop="edgeSize">
<span>edge size</span>
<input type="range" min="0" max="1000" step="1" />
<code>-</code>
</label>
<label data-prop="starPopulationDensity">
<span>population density</span>
<input type="range" min="0" max="0.01" step="0.000001" />
<code>-</code>
</label>
<label data-prop="starMinSpeed">
<span>min speed</span>
<input type="range" min="0" max="5" step="0.1" />
<code>-</code>
</label>
<label data-prop="starMaxSpeed">
<span>max speed</span>
<input type="range" min="0" max="5" step="0.1" />
<code>-</code>
</label>
<label data-prop="worldSpeed">
<span>target world speed</span>
<input type="range" min="0.001" max="1" step="0.001" />
<code>-</code>
</label>
<label data-prop="connectionStarPopulationDensity">
<span>connection density</span>
<input type="range" min="0" max="0.0001" step="0.000002" />
<code>-</code>
</label>
<label data-prop="starPulseSpeed">
<span>pulse speed</span>
<input type="range" min="0" max="0.01" step="0.00005" />
<code>-</code>
</label>
<label data-prop="lineWidth">
<span>line width</span>
<input type="range" min="1" max="16" step="1" />
<code>-</code>
</label>
</div>
<div class="collection" id="this-settings">
<h2>state</h2>
<label data-prop="maximumStarPopulation">
<span>max star population</span>
<input type="range" min="0" max="1000" step="1" />
<code>-</code>
</label>
<label data-prop="maxConnectionStars">
<span>max connection stars</span>
<input type="range" min="0" max="1000" step="1" />
<code>-</code>
</label>
<label data-prop="connectionRadiusProduct">
<span>connectionRadiusProduct</span>
<input type="range" min="0" max="1000" step="1" />
<code>-</code>
</label>
<label data-prop="connectionRadiusProductActual">
<span>connectionRadiusProductActual</span>
<input type="range" min="0" max="1000" step="1" />
<code>-</code>
</label>
<label data-prop="nStars">
<span>nStars</span>
<input type="range" min="0" max="1000" step="1" />
<code>-</code>
</label>
<label data-prop="nConnectionStars">
<span>nConnectionStars</span>
<input type="range" min="0" max="1000" step="1" />
<code>-</code>
</label>
<label data-prop="actualWorldSpeed">
<span>real world speed</span>
<input type="range" min="0.001" max="1" step="0.001" />
<code>-</code>
</label>
<label data-prop="warpSpeed">
<span>warp speed</span>
<input type="range" min="0" max="0.001" step="0.0000r1" />
<code>-</code>
</label>
<label data-prop="rot">
<span>rot</span>
<input type="range" min="0" max="360" step="1" />
<code>-</code>
</label>
<label data-prop="rotSpeed">
<span>rot speed</span>
<input type="range" min="0" max="1" step="0.005" />
<code>-</code>
</label>
<label data-prop="spawnRadius">
<span>spawn radius</span>
<input type="range" min="0" max="1000" step="1" />
<code>-</code>
</label>
</div>
</article>
</main>
<script src="./stars.js"></script>
<script src="./wakelock.js"></script>
<script>
document.querySelector("main").addEventListener("touchend", () => {
if (document.body.webkitRequestFullscreen) document.body.webkitRequestFullscreen()
else document.body.requestFullscreen()
})
</script>
<script>
const tf = () => {
document.body.style.cursor = "none"
if (!document.querySelector("#player").hidden) {
document.querySelector("#keyboard").hidden = true
}
}
const tt = 3000
let t = setTimeout(tf, tt)
document.addEventListener("mousemove", () => {
if (!document.querySelector("#player").hidden) {
document.querySelector("#keyboard").hidden = false
}
document.body.style.cursor = ""
clearTimeout(t)
t = setTimeout(tf, tt)
})
</script>
<script></script>
</body>
</html>