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<title>Grid.line_of_sight — Ludic</title>
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<meta name="description" content="True if the straight line between two cells crosses no wall.">
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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-grid.html">Grid</a> <span>›</span> <span class="here">Grid.line_of_sight</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">Grid.line_of_sight</h1>
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</div>
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<code class="sig">Grid.line_of_sight(x0, y0, x1, y1, wall) -> bool</code>
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<div class="desc"><p>Whether an unobstructed straight line connects <code>(x0, y0)</code> and <code>(x1, y1)</code> — <code>true</code> when no cell it crosses (endpoints included) is a <code>wall</code>. Use it for visibility, aggro checks, and cover.</p></div>
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<div class="params"><h2>Parameters</h2><div class="param" id="param-wall"><code class="pname">wall</code><span class="pdesc">the impassable tile char</span></div></div>
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<div class="examples"><h2>Example</h2><pre data-lang="ludic">program Demo {
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handler H phase Update {
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if Grid.line_of_sight(1, 1, 8, 1, '#') { print(1) }
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}
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}</pre></div>
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