From 8e209f676c6b5a8b5c1166f0d6c3366121dcd655 Mon Sep 17 00:00:00 2001
From: Tor Andersson <tor@ccxvii.net>
Date: Sat, 10 Sep 2022 18:59:17 +0200
Subject: Add checkpoints for replay.

---
 map.svg  | 4 ++--
 rules.js | 7 +++++++
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/map.svg b/map.svg
index 01cb51a..76733a3 100644
--- a/map.svg
+++ b/map.svg
@@ -203,13 +203,13 @@
 	/>
 
 <path id="supply_outer" d="M94.936 728.41c0 6.078-4.927 11.004-11 11.004-6.083 0-11.011-4.926-11.011-11.004 0-6.08 4.928-11.006 11.01-11.006 6.074 0 11 4.926 11 11.006z"
-	fill="bisque"
+	fill="cornsilk"
 	stroke="#222"
 	stroke-width="1.5"
 	/>
 
 <path id="supply_outer" d="M2600.348 250.864c0 6.078-4.928 11.004-11.001 11.004-6.083 0-11.01-4.926-11.01-11.004 0-6.08 4.927-11.006 11.01-11.006 6.073 0 11 4.926 11 11.006z"
-	fill="bisque"
+	fill="cornsilk"
 	stroke="#222"
 	stroke-width="1.5"
 	/>
diff --git a/rules.js b/rules.js
index 2a6b4f6..49dea02 100644
--- a/rules.js
+++ b/rules.js
@@ -6946,6 +6946,13 @@ exports.setup = function (seed, scenario, options) {
 	return game
 }
 
+exports.is_checkpoint = function (a, b) {
+	if (!a.log) return true
+	let ax = a.log[a.log.length-2].startsWith(".h2")
+	let bx = b.log[b.log.length-2].startsWith(".h2")
+	return bx && (!ax || a.log.length !== b.log.length)
+}
+
 exports.view = function(state, current) {
 	load_state(state)
 
-- 
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