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1.8 KiB
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32 lines
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1.8 KiB
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<head>
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<title>Math.sin — Ludic</title>
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<meta name="description" content="Sine of an angle in radians.">
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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-math.html">Math</a> <span>›</span> <span class="here">Math.sin</span></div>
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<div class="item-head">
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<span class="kind-badge kind-method">method</span>
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<h1 id="top">Math.sin</h1>
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</div>
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<code class="sig">Math.sin(radians) -> fixed</code>
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<div class="desc"><p>Returns the sine of <code>radians</code> as a <code>fixed</code> in <code>-1.0</code>..<code>1.0</code>. It is table-driven (a 256-entry Q16.16 sine table with linear interpolation) so it is fast and fully deterministic. Angles wrap, so any value works — no need to reduce into a range first. Pair it with <code>Math.cos</code> to turn an angle into a direction.</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 y = center_y + Math.sin(angle) * radius
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}
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}</pre></div>
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