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+<title>where — Ludic</title>
+<meta name="description" content="Filter a query loop to entities that satisfy a condition.">
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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="api.html#control">Control flow</a> <span>›</span> <span class="here">where</span></div>
+  <div class="item-head">
+    <span class="kind-badge kind-keyword">keyword</span>
+    <h1 id="top">where</h1>
+  </div>
+  <code class="sig">for (Binds) in query [Comps] where cond { … }</code>
+  <div class="desc"><p><code>where</code> attaches a boolean condition to a <code>query</code> loop, so the body runs only for entities whose components satisfy it — the rows that fail the test are skipped entirely. The condition is an ordinary expression over the bound components, such as <code>where Battle.hp &lt;= 0 and Battle.side == 1</code>. It is the imperative twin of a component filter written inside a <code>@Queries</code> annotation, and keeps the guard next to the loop instead of repeating an <code>if</code> at the top of the body.</p></div>
+  
+  <div class="examples"><h2>Example</h2><pre data-lang="ludic">program Cleanup {
+  property Health { hp: int = 0 }
+  model Foe { Health }
+
+  handler ReapDead phase LateUpdate {
+    for (Health) in query [Health, {Foe}] where Health.hp &lt;= 0 {
+      # only dead foes reach here
+    }
+  }
+}</pre></div>
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