Add Language System

Patch/Game/LanguageSyncPatch.cs

@@ -0,0 +1,26 @@
+using ADOFAIRenderer.Localization;
+using HarmonyLib;
+using UnityEngine;
+
+namespace ADOFAIRenderer.Patch.Game;
+
+/// <summary>
+/// Synchronizes mod localization with ADOFAI's in-game language settings.
+/// </summary>
+[HarmonyPatch(typeof(RDString))]
+internal static class LanguageSyncPatch
+{
+    [HarmonyPatch(nameof(RDString.ChangeLanguage))]
+    [HarmonyPostfix]
+    public static void OnChangeLanguage(SystemLanguage language)
+    {
+        LocalizationManager.SetLanguage(language);
+    }
+
+    [HarmonyPatch(nameof(RDString.Setup))]
+    [HarmonyPostfix]
+    public static void OnSetup()
+    {
+        LocalizationManager.SetLanguage(RDString.language);
+    }
+}