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+<title>layer — Ludic</title>
+<meta name="description" content="A named group of handlers inside a scene; layers render in declaration order.">
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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#scenes">Scenes &amp; layers</a> <span>›</span> <span class="here">layer</span></div>
+  <div class="item-head">
+    <span class="kind-badge kind-keyword">keyword</span>
+    <h1 id="top">layer</h1>
+  </div>
+  <code class="sig">layer Name { handlers }</code>
+  <div class="desc"><p>A <code>layer</code> groups handlers inside a scene, and <b>declaration order is draw order</b>: within a phase the active scene's layers run in the order they were written, so a <code>Hud</code> layer declared after a <code>World</code> layer paints its <code>Render</code> output on top. Layers are the natural unit for stacking a heads-up display over the play-field, or a menu over a paused world. A layer handler may use any phase except <code>Start</code> (boot-time setup belongs in the scene's <code>on enter</code>). Handlers that should run in every scene are declared outside any scene rather than in a layer.</p></div>
+  
+  <div class="examples"><h2>Example</h2><pre data-lang="ludic">program LayerExample {
+  property Position { column: int = 0, row: int = 0 }
+  model Player { Position }
+
+  var score: int = 0
+
+  scene Overworld start {
+    on enter { spawn Player { Position { column: 6, row: 6 } } }
+
+    layer World {
+      handler DrawWorld phase Render {
+        Screen.clear(Color.MidnightBlue)
+        for (current_position) in query [Position, {Player}] {
+          Screen.fill_rectangle(x: current_position.column * 16, y: current_position.row * 16, width: 16, height: 16, color: Color.LimeGreen)
+        }
+      }
+    }
+
+    layer Hud {
+      handler DrawScore phase Render {
+        Screen.draw_text(x: 6, y: 4, text: "SCORE", color: Color.White, scale: 1)
+        Screen.draw_number(x: 52, y: 4, value: score, color: Color.Gold, scale: 1)
+        Screen.show()                     # the last layer to draw presents the frame
+      }
+    }
+  }
+}</pre></div>
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