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<title>Tween.value — Ludic</title>
<meta name="description" content="The current value of a fluent tween handle this frame.">
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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.value</span></div>
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<span class="kind-badge kind-method">method</span>
<h1 id="top">Tween.value</h1>
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<code class="sig">Tween.value(handle) -&gt; int</code>
<div class="desc"><p>Returns the current interpolated value of a <a href="tween-to"><code>tween handle</code></a> this frame — the number the engine advanced it to. Read it each frame to drive a position, an alpha, a scale. Once every segment has finished the value rests on the final target; <a href="tween-done"><code>Tween.done</code></a> reports when that has happened. Returns <code>0</code> for an invalid handle.</p></div>
<div class="params"><h2>Parameters</h2><div class="param" id="param-handle"><code class="pname">handle</code><span class="pdesc">the tween handle to read</span></div></div>
<div class="examples"><h2>Example</h2><pre data-lang="ludic">program Demo {
property Pos { x: int = 0 }
property Tw { h: int = 0 }
model Mover { Pos, Tw }
handler Move phase Update {
let p = World.prop_id("Pos")
let t = World.prop_id("Tw")
let e = World.query_next(t, 0)
let h = World.get(e, t, World.field_id(t, "h"))
World.set(e, p, World.field_id(p, "x"), Tween.value(h))
}
}</pre></div>
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