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36 lines
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2.4 KiB
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<title>Tween.point — Ludic</title>
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<meta name="description" content="Component-wise blend of two Vectors by amount t.">
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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.point</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.point</h1>
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</div>
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<code class="sig">Tween.point(from, to, t) -> Vector</code>
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<div class="desc"><p>Interpolates two <a href="vector"><code>Vector</code></a> endpoints component-wise by amount <code>t</code> — the 2D version of <a href="tween-number"><code>Tween.number</code></a>. Move an entity along a straight path, or ease a camera toward a target, in one call.</p></div>
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<div class="params"><h2>Parameters</h2><div class="param" id="param-from"><code class="pname">from</code><span class="pdesc">the point at <code>t = 0</code> (a <code>Vector</code>)</span></div><div class="param" id="param-to"><code class="pname">to</code><span class="pdesc">the point at <code>t = 1</code> (a <code>Vector</code>)</span></div><div class="param" id="param-t"><code class="pname">t</code><span class="pdesc">the blend amount (a <code>fixed</code>, usually 0..1)</span></div></div>
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<div class="examples"><h2>Example</h2><pre data-lang="ludic">program Demo {
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handler Run phase Update {
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let a = Vector.make(fixed(0), fixed(0))
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let b = Vector.make(fixed(100), fixed(40))
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let t = Tween.progress(fixed(1), fixed(2))
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let p = Tween.point(a, b, Tween.ease(t, 3))
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print(Vector.x(p))
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}
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}</pre></div>
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