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2.1 KiB
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37 lines
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2.1 KiB
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<title>Tween.parallel — Ludic</title>
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<meta name="description" content="Are two tween handles both finished? — a parallel completion query.">
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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-tween.html">Tween</a> <span>›</span> <span class="here">Tween.parallel</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">Tween.parallel</h1>
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</div>
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<code class="sig">Tween.parallel(a, b) -> bool</code>
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<div class="desc"><p>Returns whether two <a href="tween-to"><code>handles</code></a> are <em>both</em> finished. Independent handles are advanced together every frame, so running several at once already runs them in parallel; this is the "wait for all" query over a pair — start a fade and a slide together, then act when both complete. For longer sequences on a single value, chain segments with <a href="tween-chain"><code>Tween.chain</code></a> instead.</p></div>
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<div class="examples"><h2>Example</h2><pre data-lang="ludic">program Demo {
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property Marker { n: int = 0 }
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model M { Marker }
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entry {
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let fade = Tween.to(255, 0, 20, 0)
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let slide = Tween.to(0, 80, 30, 2)
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if Tween.parallel(fade, slide) { print(1) } # both done?
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quit()
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}
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}</pre></div>
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