Minor fixes

lib/src/ui/controller/game_controller.dart

@@ -23,6 +23,7 @@ class GameController extends GetxController {
   late final Rx<List<FortniteVersion>> versions;
   late final Rxn<FortniteVersion> _selectedVersion;
   late final RxBool started;
+  late final RxBool autoStartGameServer;
   GameInstance? instance;
   
   GameController() {
@@ -47,6 +48,8 @@ class GameController extends GetxController {
     customLaunchArgs = TextEditingController(text: _storage.read("custom_launch_args" ?? ""));
     customLaunchArgs.addListener(() => _storage.write("custom_launch_args", customLaunchArgs.text));
     started = RxBool(false);
+    autoStartGameServer = RxBool(_storage.read("auto_game_server") ?? true);
+    autoStartGameServer.listen((value) => _storage.write("auto_game_server", value));
   }
 
   FortniteVersion? getVersionByName(String name) {

lib/src/ui/page/launcher_page.dart

@@ -1,5 +1,7 @@
 
 
+import 'dart:async';
+
 import 'package:fluent_ui/fluent_ui.dart';
 import 'package:flutter/material.dart' show Icons;
 import 'package:get/get.dart';
@@ -11,6 +13,7 @@ import 'package:reboot_launcher/src/ui/widget/home/version_selector.dart';
 import 'package:reboot_launcher/src/ui/widget/shared/setting_tile.dart';
 
 import '../../util/checks.dart';
+import '../../util/os.dart';
 
 class LauncherPage extends StatefulWidget {
   final GlobalKey<NavigatorState> navigatorKey;
@@ -66,6 +69,13 @@ class _GamePageState extends State<_GamePage> {
   final GameController _gameController = Get.find<GameController>();
   final SettingsController _settingsController = Get.find<SettingsController>();
   late final RxBool _showPasswordTrailing = RxBool(_gameController.password.text.isNotEmpty);
+  final StreamController _matchmakingStream = StreamController();
+
+  @override
+  void initState() {
+    _settingsController.matchmakingIp.addListener(() => _matchmakingStream.add(null));
+    super.initState();
+  }
 
   @override
   Widget build(BuildContext context) => Column(
@@ -118,6 +128,9 @@ class _GamePageState extends State<_GamePage> {
             const SizedBox(
               height: 16.0,
             ),
+            StreamBuilder(
+                stream: _matchmakingStream.stream,
+                builder: (context, value) =>
                     SettingTile(
                         title: "Matchmaking host",
                         subtitle: "Enter the IP address of the game server hosting the match",
@@ -127,7 +140,18 @@ class _GamePageState extends State<_GamePage> {
                             validator: checkMatchmaking,
                             autovalidateMode: AutovalidateMode.always
                         ),
+                        expandedContentSpacing: isLocalHost(_settingsController.matchmakingIp.text) ? SettingTile.kDefaultSpacing : 0,
                         expandedContent: [
+                          !isLocalHost(_settingsController.matchmakingIp.text) ? const SizedBox() : SettingTile(
+                              title: "Automatically start game server",
+                              subtitle: "This option is available when the matchmaker is set to localhost",
+                              contentWidth: null,
+                              content: Obx(() => ToggleSwitch(
+                                  checked: _gameController.autoStartGameServer(),
+                                  onChanged: (value) => _gameController.autoStartGameServer.value = value
+                              )),
+                              isChild: true
+                          ),
                           SettingTile(
                               title: "Browse available servers",
                               subtitle: "Discover new game servers that fit your play-style",
@@ -141,6 +165,7 @@ class _GamePageState extends State<_GamePage> {
                               isChild: true
                           )
                         ]
+                    )
             ),
             const SizedBox(
               height: 16.0,

lib/src/ui/widget/home/launch_button.dart

@@ -178,6 +178,10 @@ class _LaunchButtonState extends State<LaunchButton> {
       return false;
     }
 
+    if(!_gameController.autoStartGameServer()){
+      return false;
+    }
+
     var version = _gameController.selectedVersion!;
     await _startGameProcesses(version, true, false);
     return true;
@@ -198,7 +202,12 @@ class _LaunchButtonState extends State<LaunchButton> {
       return kDefaultPlayerName;
     }
 
-    var username = _gameController.username.text.replaceAll(RegExp("[^A-Za-z0-9]"), "").trim();
+    var username = _gameController.username.text;
+    if(_gameController.password.text.isNotEmpty){
+      return username;
+    }
+
+    username = _gameController.username.text.replaceAll(RegExp("[^A-Za-z0-9]"), "").trim();
     if(username.isEmpty){
       return kDefaultPlayerName;
     }