feat: start/stop server handling

The original app volume is also restored when the server is stopped.

Addons/GBSUGui.cs

@@ -67,20 +67,14 @@ Set CLI arguments: -ip, -port (optionally -maplist)
                 {
                     if (File.Exists(Helper.GameConfigPath))
                     {
-                        Helper.hosting = true;
-
-                        AudioListener.volume = 0; // mute game audio
-
                         try
                         {
-                            Plugin.AddServerComp(); // add custom GBSU server component
                             GBSUServer.StartServer();
                         }
                         catch (Exception e)
                         {
                             PushError("Looks like you've caught a bug! Please send your log file to us :)\n" + e);
-                            Helper.hosting = false;
-                            Plugin.DestroyServerComp();
+                            GBSUServer.StopServer();
                         }
                     }
                     else
@@ -131,6 +125,13 @@ Make sure to download a file from the examples given and rename it to config.jso
         {
             Helper.FlipVSync();
         }
+        if (Helper.hosting)
+        {
+            if (GUI.Button(new Rect(195f, 330f, 170f, 30f), "Stop server"))
+            {
+                GBSUServer.StopServer();
+            }
+        }
 
         GUI.Label(new Rect(20f, 365f, 365f, 400f), $@"
 

Addons/GBSUServer.cs

@@ -4,6 +4,7 @@ using GB.Core;
 using GB.Game;
 using HarmonyLib;
 using UnityEngine;
+using UnityEngine.SceneManagement;
 
 #pragma warning disable IDE0051 // Private member is unused
 
@@ -34,11 +35,33 @@ public class GBSUServer : MonoBehaviour
 
     public static void StartServer()
     {
+        Helper.hosting = true;
+        AudioListener.volume = 0; // mute game audio
+
+        Plugin.AddServerComp(); // add custom GBSU server component
+
         RotationConfig gameConfig = GBConfigLoader.LoadRotationConfig(null); // the argument doesn't matter as we do stuff in the method
         ServerConfig serverConfig = NetConfigLoader.LoadServerConfig(); // load default server config, because it can be overridden by args like -ip and -port
         MonoSingleton<Global>.Instance.UNetManager.LaunchServer(serverConfig); // launch the server with the server config
         MonoSingleton<Global>.Instance.UNetManager.GetComponent<GameManagerNew>().ChangeRotationConfig(gameConfig, 0); // set server's rotationconfig
     }
+
+    public static void StopServer()
+    {
+        // WIP: At the moment the only way to stop the server is to exit/kill the game
+        Helper.hosting = false;
+
+        AudioListener.volume = Helper.saved_volume; // restore volume
+
+        // stop network listener
+        MonoSingleton<Global>.Instance.UNetManager.StopServer();
+
+        // destroy GBSU server comp
+        Plugin.DestroyServerComp();
+
+        // go back to main menu
+        SceneManager.LoadScene("Menu");
+    }
     /*
     public string GetRemainingRoundTime()
     {

Addons/Helper.cs

@@ -11,6 +11,7 @@ public class Helper
     public static string serverip = null;
     public static int serverport = 5999;
     public static bool hosting = false;
+    public static float saved_volume;
     public static void DisableAnalytics()
     {
         // Try disabling analytics https://docs.unity3d.com/ScriptReference/Analytics.Analytics-deviceStatsEnabled.html