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<title>Grid.line_of_sight — Ludic</title>
<meta name="description" content="True if the straight line between two cells crosses no wall.">
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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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<span class="kind-badge kind-method">method</span>
<h1 id="top">Grid.line_of_sight</h1>
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<code class="sig">Grid.line_of_sight(x0, y0, x1, y1, wall) -&gt; bool</code>
<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>
<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>
<div class="examples"><h2>Example</h2><pre data-lang="ludic">program Demo {
handler H phase Update {
if Grid.line_of_sight(1, 1, 8, 1, '#') { print(1) }
}
}</pre></div>
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