From da84605b2f9a897a17c6bb67755946fc26a62378 Mon Sep 17 00:00:00 2001
From: hypercross <helios.tnak@gmail.com>
Date: Sat, 18 Jul 2026 21:24:11 +0800
Subject: [PATCH] refactor: use ReadSingleton for GameState in RenderSystem

---
 examples/TicTacToe/Systems/RenderSystem.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/examples/TicTacToe/Systems/RenderSystem.cs b/examples/TicTacToe/Systems/RenderSystem.cs
index 28d9c7a..a20b454 100644
--- a/examples/TicTacToe/Systems/RenderSystem.cs
+++ b/examples/TicTacToe/Systems/RenderSystem.cs
@@ -16,7 +16,7 @@ public class RenderSystem : ISystem
 
     public void Run(World world)
     {
-        ref var state = ref world.GetSingleton<GameState>();
+        var state = world.ReadSingleton<GameState>();
 
         // Build a 3×3 grid.
         var grid = new char[3, 3];