From c7edfa74ad2229ca0723f09a1aaf91bcf60ea119 Mon Sep 17 00:00:00 2001
From: Eric Wagoner <ewagoner@gmail.com>
Date: Sat, 5 Sep 2026 20:41:02 -0400
Subject: [PATCH] The state is copied by hand, and the proxy waits out a
 restart
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Two-thirds of a ledger replay was structuredClone; a recursive copy of
plain data does the same work in a fraction of the time, so a server
boot — every ledger replayed — is half as long, and the automaton's
lookahead is quicker with it. Caddy now holds a request for up to
thirty seconds while the game restarts, dialing every quarter second,
so a visitor who lands during a deploy waits instead of meeting a 502.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Jm2auWk6RP71CjaAb4FMoG
---
 deploy/setup-droplet.sh     |  6 ++++--
 packages/engine/src/game.ts | 16 +++++++++++++++-
 2 files changed, 19 insertions(+), 3 deletions(-)

diff --git a/deploy/setup-droplet.sh b/deploy/setup-droplet.sh
index c2621d6..5c268df 100755
--- a/deploy/setup-droplet.sh
+++ b/deploy/setup-droplet.sh
@@ -26,8 +26,10 @@ chown -R wizwar:wizwar /opt/wizwar /var/lib/wizwar
 
 # Caddy vhost: auto-TLS, security headers, proxy to the game.
 # Access log kept to 30 rolls of 10MiB: the nightly rollup keeps the
-# counts; the raw lines back it for a while.
-printf '%s\n\nheader {\n\tStrict-Transport-Security "max-age=31536000"\n\tX-Content-Type-Options "nosniff"\n\tX-Frame-Options "DENY"\n\tReferrer-Policy "no-referrer"\n}\nlog {\n\toutput file /var/lib/caddy/access.log {\n\t\troll_size 10MiB\n\t\troll_keep 30\n\t}\n}\nreverse_proxy localhost:8787\n' "$HOST" > /etc/caddy/Caddyfile
+# counts; the raw lines back it for a while. A deploy restarts the game
+# for a few seconds; the proxy holds requests that land in that gap and
+# keeps dialing, so a visitor waits instead of meeting a 502.
+printf '%s\n\nheader {\n\tStrict-Transport-Security "max-age=31536000"\n\tX-Content-Type-Options "nosniff"\n\tX-Frame-Options "DENY"\n\tReferrer-Policy "no-referrer"\n}\nlog {\n\toutput file /var/lib/caddy/access.log {\n\t\troll_size 10MiB\n\t\troll_keep 30\n\t}\n}\nreverse_proxy localhost:8787 {\n\tlb_try_duration 30s\n\tlb_try_interval 250ms\n}\n' "$HOST" > /etc/caddy/Caddyfile
 systemctl reload caddy
 
 # Firewall: ssh + web only. The game server binds loopback and is reached
diff --git a/packages/engine/src/game.ts b/packages/engine/src/game.ts
index cb9b60b..faf4ff8 100644
--- a/packages/engine/src/game.ts
+++ b/packages/engine/src/game.ts
@@ -4068,8 +4068,22 @@ export function activePlayer(state: GameState): PlayerState {
   return state.players[state.turn.activeIndex]!;
 }
 
+/** The state is plain data — literals, arrays, numbers (Infinity
+ * included), strings, booleans, and the odd undefined — so a recursive
+ * copy serves, and runs several times faster than structuredClone. Every
+ * command clones once, and a server boot replays every ledger. */
 function clone(state: GameState): GameState {
-  return structuredClone(state);
+  return deepCopy(state);
+}
+
+function deepCopy<T>(value: T): T {
+  if (Array.isArray(value)) return value.map(deepCopy) as T;
+  if (value !== null && typeof value === "object") {
+    const out: Record<string, unknown> = {};
+    for (const key in value) out[key] = deepCopy((value as Record<string, unknown>)[key]);
+    return out as T;
+  }
+  return value;
 }
 
 /** Everything an eliminated wizard leaves behind goes with them.