From be72ff6c01d2a19231fa1e40f272dcf6fa8754d9 Mon Sep 17 00:00:00 2001
From: kg0816 <211191696+kg0816@users.noreply.github.com>
Date: Fri, 21 Nov 2025 22:38:02 +0900
Subject: [PATCH] fix: convert board data to numbers before saving

---
 src/iframe/life-game.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/iframe/life-game.js b/src/iframe/life-game.js
index 0daea76..49f8a32 100644
--- a/src/iframe/life-game.js
+++ b/src/iframe/life-game.js
@@ -283,7 +283,8 @@ on.place_template = (template) => {
 };
 
 on.save_board = async () => {
-  window.parent.postMessage({ type: "save_board", data: board }, "*");
+  const numericBoard = board.map((row) => row.map((cell) => (cell ? 1 : 0)));
+  window.parent.postMessage({ type: "save_board", data: numericBoard }, "*");
 };
 
 on.apply_board = (newBoard) => {