47 lines
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2.7 KiB
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47 lines
No EOL
2.7 KiB
HTML
<!doctype html>
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<html lang="en">
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<head>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<title>Start — Ludic</title>
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<meta name="description" content="Runs once at boot, before the game loop — the place to set up initial state.">
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<link rel="stylesheet" href="base.css">
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<link rel="stylesheet" href="docs.css">
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</head>
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<body>
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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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<main class="wrap item">
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<div class="crumbs"><a href="api.html">API Reference</a> <span>›</span> <a href="api.html#phases">Phases</a> <span>›</span> <span class="here">Start</span></div>
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<div class="item-head">
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<span class="kind-badge kind-phase">phase</span>
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<h1 id="top">Start</h1>
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</div>
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<code class="sig">phase Start</code>
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<div class="desc"><p><code>Start</code> is the boot phase: a <code>handler … phase Start</code> runs <b>exactly once</b>, before the first frame and before the per-frame loop begins. Use it to build the world that everything else assumes — seed the RNG with <code>Random.seed</code>, set the tilemap size with <code>Map.size</code>, spawn the starting models, and initialise your program <code>var</code>s. It runs before any scene is entered, so it is the one phase a scene <code>layer</code> handler may <b>not</b> use; per-scene setup belongs in a scene's <code>on enter</code> block instead. Every other phase (<code>Input</code>, <code>FixedUpdate</code>, <code>Update</code>, <code>LateUpdate</code>, <code>Render</code>) then repeats each frame, but <code>Start</code> never runs again.</p></div>
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<div class="examples"><h2>Example</h2><pre data-lang="ludic">program StartExample {
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property Position { column: int = 0, row: int = 0 }
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model Player { Position }
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const GRID_WIDTH: int = 20
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var score: int = 0
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handler SetUpWorld phase Start {
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Random.seed(value: 1)
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Map.size(width: GRID_WIDTH, height: 15)
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score = 0
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spawn Player { Position { column: 10, row: 7 } }
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}
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handler DrawWorld phase Render {
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Screen.clear(Color.MidnightBlue)
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Screen.draw_number(x: 4, y: 4, value: score, color: Color.Gold, scale: 1)
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Screen.show()
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}
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}</pre></div>
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<a class="back" href="api.html">← All symbols</a>
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</main>
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<script src="ludic-highlight.js"></script>
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<script>Ludic.highlightAll(); Ludic.installCards(); Ludic.flashTarget();</script>
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</body></html> |