feat: start/stop server handling

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

.vscode/settings.json

@@ -10,7 +10,9 @@
         "GBSU",
         "gmenu",
         "hlapi",
+        "maplist",
         "netstandard",
+        "Newtonsoft",
         "playercount",
         "protontricks",
         "rotationconfig",

Addons/GBSUGui.cs

@@ -11,11 +11,11 @@ namespace GBSU.Addons;
 public class GBSUGui : MonoBehaviour
 {
     private bool menu_shown;
-    private bool error_shown;
+    private static bool error_shown;
     //private string _currentMap;
     public Rect gmenu = new(Screen.width / 2, 0, 385f, 690f);
     public Rect error_dialog = new(Screen.width / 2, 0, 520f, 175f);
-    private string error_msg = "Unknown error!";
+    private static string error_msg = "Unknown error!";
 
     readonly IInputSystem inputSystem = UnityInput.Current;
     private void Update()
@@ -46,7 +46,7 @@ public class GBSUGui : MonoBehaviour
         GUI.skin.label.alignment = TextAnchor.UpperLeft;
 
         GUILayout.Label($@"==Guide==
-Set CLI arguments: -ip, -port
+Set CLI arguments: -ip, -port (optionally -maplist)
 
 [Hosting]
 1. Create a config in Gang Beasts_Data/Config/Rotation/config.json
@@ -65,22 +65,16 @@ Set CLI arguments: -ip, -port
             {
                 if (LobbyManager.Instance.LobbyStates.SelfState == LobbyState.Game.Menu)
                 {
-                    if (File.Exists(Helper.RotationFolderPath + "config.json"))
+                    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), $@"
 
@@ -176,7 +177,7 @@ Please refer to the documentation for more information.");
         return null;
     }
 
-    private void PushError(string message)
+    public static void PushError(string message)
     {
         Plugin.Log.LogError(message);
 

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()
     {
-        RotationConfig gameConfig = GBConfigLoader.LoadRotationConfig("config.json", true); // load rotation config from Config/Rotation/config.json
+        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

@@ -6,11 +6,12 @@ using UnityEngine.Analytics;
 namespace GBSU.Addons;
 public class Helper
 {
-    public static string RotationFolderPath = Application.dataPath + "/Config/Rotation/";
+    public static string RotationFolderPath = BepInEx.Paths.BepInExRootPath + "/config/GBSU/";
     public static string GameConfigPath = RotationFolderPath + "config.json";
     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
@@ -72,4 +73,14 @@ public class Helper
             QualitySettings.vSyncCount = 0;
         }
     }
+
+    public static void CheckCustomRotationPath()
+    {
+        // Did the host request to use their own rotation config path?
+        if (CommandLineParser.Instance.KeyExists("-maplist"))
+        {
+            GameConfigPath = CommandLineParser.Instance.GetValueForKey("-maplist");
+            Plugin.Log.LogInfo("Set custom rotation config path at " + GameConfigPath);
+        }
+    }
 }

GBSU.csproj

@@ -42,5 +42,8 @@
   <Reference Include="UnityEngine.CoreModule">
     <HintPath>ref/UnityEngine.CoreModule.dll</HintPath>
   </Reference>
+  <Reference Include="Newtonsoft.Json.dll">
+    <HintPath>ref/Newtonsoft.Json.dll</HintPath>
+  </Reference>
   </ItemGroup>
 </Project>

Patches/ConfigLoader.cs

@@ -0,0 +1,35 @@
+using System;
+using System.IO;
+using GB.Config;
+using GBSU.Addons;
+using HarmonyLib;
+using Newtonsoft.Json;
+
+namespace GBSU.Patches;
+
+[HarmonyPatch]
+class ConfigLoaderPatch
+{
+    [HarmonyPatch(typeof(GBConfigLoader), "LoadRotationConfig")]
+    private static bool Prefix(ref RotationConfig __result)
+    {
+        string text = ""; // contents of file
+
+        Plugin.Log.LogInfo("Loading custom rotation config...");
+
+        // Reading from file
+        try
+		{
+            text = File.ReadAllText(Helper.GameConfigPath);
+            Plugin.Log.LogDebug("Provided rotation config:\n" + text);
+            RotationConfig rc = JsonConvert.DeserializeObject<RotationConfig>(text);
+			__result = rc;
+		}
+		catch (Exception e)
+		{
+            GBSUGui.PushError("Couldn't read game config file. A few details:\n" + e);
+        }
+
+        return false; // skip
+    }
+}

Patches/MultiplayerPatches.cs

@@ -50,7 +50,6 @@ class HandleScorePatch
             Plugin.Log.LogDebug("Done processing all scores!");
         }
         
-        Plugin.Log.LogInfo("Not letting HandleScore run...");
         return false;
     }
 }

Plugin.cs

@@ -58,12 +58,18 @@ public class Plugin : BaseUnityPlugin
         // Parse CLI arguments
         if (CommandLineParser.Instance.KeyExists("-ip"))
         {
-            Helper.serverip = CommandLineParser.Instance.GetValueForKey("-ip", true);
+            Helper.serverip = CommandLineParser.Instance.GetValueForKey("-ip", false);
         }
         if (CommandLineParser.Instance.KeyExists("-port"))
         {
-            int.TryParse(CommandLineParser.Instance.GetValueForKey("-port", true), out Helper.serverport);
+            int.TryParse(CommandLineParser.Instance.GetValueForKey("-port", false), out Helper.serverport);
         }
+
+        // "-maplist" CLI
+        Helper.CheckCustomRotationPath();
+
+        // store app volume in a variable to restore it if needed
+        Helper.saved_volume = AudioListener.volume;
     }
 
     private static void GBSUCompInit()

README.md

@@ -31,11 +31,13 @@ Press `Right Shift` to open the mod GUI. Because of how the game is made, you ne
 
 ## Server (host)
 ### Setting up the server
-1. Open the `Gang Beasts_Data` folder in the "server" game instance files.
-2. Create two new folders: `Config/Rotation`
-3. Download the [one of the config files](https://git.gaboule.com/Gaboule/GBSU/src/branch/main/docs/configs) and place it inside the `Rotation` folder.
+1. Open the `BepInEx` folder in the "server" game instance files.
+2. Create a `GBSU` folder in `config`.
+3. Download the [one of the config files](https://git.gaboule.com/Gaboule/GBSU/src/branch/main/docs/configs) and place it inside the `GBSU` folder.
 4. Rename the file to `config.json`
 
+**Tip: your config file can also be anywhere else! Use the -maplist argument followed by the path to the file,** for example `-ip 192.168.1.2 -port 5999 -maplist "/home/user/mycustomconfig.json"`
+
 ### Configuring your custom server settings
 * If you set `"random": true`, the map order will be randomized.
 * Some maps may have different names in-game compared to their actual titles. Make sure to refer to the [`allmaps` configs](https://git.gaboule.com/Gaboule/GBSU/src/branch/main/docs/configs) for the map names.
@@ -45,7 +47,7 @@ Once the config file is in place, host your server by pressing the **Host** butt
 
 ## Client (player)
 1. In the game menu, choose **Online**.
-2. If you're planning to team up with friends, make sure your [server config]() is set to the `gang` gamemode and choose a shared color. Otherwise, use a different color than your friends.
+2. If you're planning to team up with friends, make sure your server config is set to the `gang` gamemode and choose a shared color. Otherwise, use a different color than your friends.
 3. Open the mod menu and press **Join**.
 
 # Troubleshooting
@@ -64,7 +66,7 @@ If it's still not working, try using `winecfg` for your prefix or `protontricks`
 
 # Known issues
 - This mode uses the game's netcode. It is poorly made, and you get noticeable latency on localhost (RTT is 10ms). It seems that there's no client-side prediction.
-- The custom score handler is broken
+- The custom score handler only tracks through colors, and is only visible on the host side.
 
 # Contact us
 ## Need help?