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<title>Ease.elastic — Ludic</title>
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<meta name="description" content="Ease out with a springy wobble.">
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<header class="nav"><div class="wrap nav-in"><a class="brand" href="index.html"><span class="logo">L</span> Ludic</a><button class="nav-toggle" aria-label="Toggle menu" aria-expanded="false">☰</button><nav class="nav-links"><a href="index.html">Home</a><a href="api.html">API Reference</a><a class="nav-cta" href="https://git.workshopsoft.io/workshopsoft/ludic">Source ↗</a></nav></div></header>
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<div class="crumbs"><a href="api.html">API Reference</a> <span>›</span> <a href="ns-ease.html">Ease</a> <span>›</span> <span class="here">Ease.elastic</span></div>
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<span class="kind-badge kind-method">method</span>
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<h1 id="top">Ease.elastic</h1>
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<code class="sig">Ease.elastic(t) -> fixed</code>
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<div class="desc"><p>Returns an ease-out that shoots past <code>1.0</code> and wobbles around it a few times with shrinking amplitude before settling — a spring released under tension. The overshoot comes from a decaying <code>2<sup>-10t</sup></code> envelope on a sine, all in Q16.16, so it is deterministic and bit-identical on every platform. Great for UI that snaps in with personality: a panel that springs open, a picked-up item that jiggles, a selection that bounces to place.</p></div>
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<div class="examples"><h2>Example</h2><pre data-lang="ludic">program Demo {
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handler Step phase Update {
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let scale = Math.lerp(0.0, 1.0, Ease.elastic(progress))
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}
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}</pre></div>
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