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+<title>Random.seed — Ludic</title>
+<meta name="description" content="Seed the random generator so runs are reproducible.">
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+  <div class="crumbs"><a href="api.html">API Reference</a> <span>›</span> <a href="ns-random.html">Random</a> <span>›</span> <span class="here">Random.seed</span></div>
+  <div class="item-head">
+    <span class="kind-badge kind-method">method</span>
+    <h1 id="top">Random.seed</h1>
+  </div>
+  <code class="sig">Random.seed(value)</code>
+  <div class="desc"><p>Sets the starting state of the random-number generator. Every subsequent call to <code>Random.range</code> and <code>Random.chance</code> then follows a fixed, repeatable sequence for that seed, so seeding with the same <code>value</code> makes two runs produce identical randomness — invaluable for tests, replays, and debugging. Seed once, typically in a <code>Start</code>-phase handler before you draw any random numbers. Use different seed values (for example a frame count or a level number) when you want variety between runs.</p></div>
+  <div class="params"><h2>Parameters</h2><div class="param" id="param-value"><code class="pname">value</code><span class="pdesc">the seed; the same value reproduces the same sequence</span></div></div>
+  <div class="examples"><h2>Example</h2><pre data-lang="ludic">program ReproducibleField {
+  property Position { column: int = 0, row: int = 0 }
+  model Star { Position }
+
+  const GRID_WIDTH: int = 20
+  const GRID_HEIGHT: int = 15
+  const TILE_SIZE: int = 16
+
+  handler SeedField phase Start {
+    Random.seed(value: 42)
+    for spawn_index in 0 .. 8 {
+      spawn Star {
+        Position {
+          column: Random.range(low: 0, high: GRID_WIDTH - 1),
+          row: Random.range(low: 0, high: GRID_HEIGHT - 1)
+        }
+      }
+    }
+  }
+
+  handler DrawWorld phase Render {
+    Screen.clear(Color.MidnightBlue)
+    for (Position) in query [Position, {Star}] {
+      Screen.fill_rectangle(
+        x: Position.column * TILE_SIZE,
+        y: Position.row * TILE_SIZE,
+        width: TILE_SIZE,
+        height: TILE_SIZE,
+        color: Color.White)
+    }
+    Screen.show()
+  }
+}</pre></div>
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