From 00fca1bce0d35437007b3941b069e5f06aa39320 Mon Sep 17 00:00:00 2001
From: lightyears <lightyears1998@hotmail.com>
Date: Mon, 20 Feb 2023 11:20:25 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BC=98=E5=8C=96=E5=AD=98=E5=82=A8=E9=80=BB?=
 =?UTF-8?q?=E8=BE=91?=
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只在时游戏设置有变动时写入磁盘。
---
 Autoloads/GameSettings.cs | 24 ++++++++++++++----------
 1 file changed, 14 insertions(+), 10 deletions(-)

diff --git a/Autoloads/GameSettings.cs b/Autoloads/GameSettings.cs
index adc73ed..e8b4bb3 100644
--- a/Autoloads/GameSettings.cs
+++ b/Autoloads/GameSettings.cs
@@ -4,6 +4,8 @@ namespace CMSGame
 {
     public partial class GameSettings : Node
     {
+        public BattleSettings OriginalBattleSettings;
+
         public BattleSettings BattleSettings;
 
         protected string BattleSettingsSavePath = new GodotPath("user://Settings/BattleSettings.json");
@@ -11,12 +13,17 @@ namespace CMSGame
         public override void _Ready()
         {
             MakeDirectories();
-            BattleSettings = GetSettings<BattleSettings>(BattleSettingsSavePath);
+
+            OriginalBattleSettings = GetSettings<BattleSettings>(BattleSettingsSavePath);
+            BattleSettings = OriginalBattleSettings with { };
         }
 
         public override void _ExitTree()
         {
-            SaveSettings(BattleSettingsSavePath);
+            if (BattleSettings != OriginalBattleSettings)
+            {
+                SaveSettings(BattleSettingsSavePath);
+            }
         }
 
         private void MakeDirectories()
@@ -24,10 +31,11 @@ namespace CMSGame
             DirAccess.MakeDirRecursiveAbsolute("user://Settings/");
         }
 
-        private SettingsType GetSettings<SettingsType>(string path) where SettingsType : new()
+        private TSettings GetSettings<TSettings>(string path)
+            where TSettings : SettingsBase, new()
         {
             string settings_text = ReadFileAsString(path);
-            var settings = JsonConvert.DeserializeObject<SettingsType>(settings_text) ?? new SettingsType();
+            var settings = JsonConvert.DeserializeObject<TSettings>(settings_text) ?? new TSettings();
             return settings;
         }
 
@@ -49,15 +57,11 @@ namespace CMSGame
         }
     }
 
-    public class SettingsBase
+    public record class SettingsBase
     {
-        public override string ToString()
-        {
-            return JsonConvert.SerializeObject(this);
-        }
     }
 
-    public class BattleSettings : SettingsBase
+    public record class BattleSettings : SettingsBase
     {
         public bool PauseBattleWhenCharacterIsSelected = true;
     }