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2.7 KiB
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43 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>@Server — Ludic</title>
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<meta name="description" content="Run a handler only on the authority; clients receive the result via @Sync.">
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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#annotations">Annotations</a> <span>›</span> <span class="here">@Server</span></div>
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<div class="item-head">
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<span class="kind-badge kind-annotation">annotation</span>
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<h1 id="top">@Server</h1>
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</div>
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<code class="sig">@Server handler Name { … }</code>
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<div class="desc"><p><code>@Server</code> marks a handler as server-authoritative: it runs only on the peer acting as the authority, and clients receive its effects through ordinary <code>@Sync</code> replication rather than by running the handler themselves. This is the declarative alternative to sprinkling <code>is_server()</code> branches through gameplay code — the role is a property of the handler, so every line's placement stays legible. Unmarked handlers are the shared, deterministic simulation that runs everywhere; use <code>@Server</code> for decisions that must have a single source of truth, like awarding score, resolving damage, or spawning authoritative entities. Offline the role register defaults to server, so the guard collapses to "run here" and a single-player build is unchanged.</p></div>
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<div class="examples"><h2>Example</h2><pre data-lang="ludic">program AuthoritativeScore {
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property Score { total: int = 0 }
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model Scoreboard { Score }
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handler Tick phase Update { # unmarked -> runs on every peer
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for (Score) in query [Score] { Score.total = Score.total + 1 }
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}
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@Server handler AwardBonus phase Update { # authority only
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for (Score) in query [Score] { Score.total = Score.total + 100 }
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}
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handler SpawnScoreboard phase Start {
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spawn Scoreboard { Score { total: 0 } }
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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> |