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camera-follow.html

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+<title>Camera.follow — Ludic</title>
+<meta name="description" content="Ease the camera toward centring a target point.">
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+  <div class="crumbs"><a href="api.html">API Reference</a> <span>›</span> <a href="ns-camera.html">Camera</a> <span>›</span> <span class="here">Camera.follow</span></div>
+  <div class="item-head">
+    <span class="kind-badge kind-method">method</span>
+    <h1 id="top">Camera.follow</h1>
+  </div>
+  <code class="sig">Camera.follow(x, y, lerp)</code>
+  <div class="desc"><p>Moves the camera a fraction <code>lerp</code> of the way toward centring the world point <code>(x, y)</code> on screen. <code>lerp</code> is a <code>fixed</code> in <code>0.0</code>..<code>1.0</code>: <code>0</code> holds still, a small value trails smoothly behind a moving target, <code>1.0</code> snaps it centred. Call it each frame with the target's position for a classic smooth-follow camera. Deterministic.</p></div>
+  <div class="params"><h2>Parameters</h2><div class="param" id="param-lerp"><code class="pname">lerp</code><span class="pdesc">how far to move this frame (a <code>fixed</code>, 0..1)</span></div></div>
+  <div class="examples"><h2>Example</h2><pre data-lang="ludic">program Demo {
+  property Position { x: int = 0, y: int = 0 }
+  model Player { Position }
+  handler DrawWorld phase Render {
+    Camera.follow(Position.x, Position.y, fixed(1) / fixed(8))   # smooth trail
+    Screen.show()
+  }
+}</pre></div>
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