Ask to change Steam config & file selecting

GCMM/MainForm.cs

@@ -81,6 +81,34 @@ You may also want to verify the game's files by right clicking the game in Steam
             DeleteEmptyPluginsDir(out bool pexists, out bool dexists);
             if (!pexists && dexists)
                 unpatched.Checked = true; //It will call the event but that won't do anything
+            if(Settings.Default.AutoLaunch && string.IsNullOrWhiteSpace(Settings.Default.SteamConfigFileForAutoLaunch))
+            {
+                string path = @"C:\Program Files (x86)\Steam\userdata";
+                if(MessageBox.Show("Do you want GCMM to change the game's launch settings so it can ensure the game is patched?\n\n" +
+                    "If you say yes, GCMM will do a quick check before the game is launched and updates if necessary. " +
+                    "This way you (hopefully) won't see crashes after a Gamecraft update.\n\n" +
+                    "Note that this also means that if you (re)move GCMM without disabling this then you won't be able to launch Gamecraft.",
+                    "GCMM auto-patching", MessageBoxButtons.YesNo)==DialogResult.Yes)
+                {
+                    var dirs = Directory.GetDirectories(path);
+                    var goodPaths = (from dir in dirs
+                                     where File.Exists(dir + @"\config\localconfig.vdf")
+                                     select dir + @"\config\localconfig.vdf").ToArray();
+                    if (goodPaths.Length != 1)
+                        path = SelectSteamConfigFile();
+                    else
+                        path = goodPaths[0];
+                    //if (path is not null)
+                    if (path != null)
+                    {
+                        Settings.Default.SteamConfigFileForAutoLaunch = path;
+                        UpdateSteamConfigToAutoStart(true);
+                    }
+                    else
+                        Settings.Default.AutoLaunch = false;
+                    Settings.Default.Save();
+                }
+            }
             await RefreshEverything();
         }
 

GCMM/MainPatcher.cs

@@ -143,25 +143,16 @@ namespace GCMM
                         };
                         process.OutputDataReceived += onoutput;
                         process.ErrorDataReceived += onoutput;
-                        process.Exited += command != null ? (EventHandler) ((sender, e) => StartGameUsingCommand(command)) : CheckStartGame; //target-typed conditional expression - C# 9.0
+                        process.Exited += CheckStartGame; //target-typed conditional expression - C# 9.0
                     }
                     break;
                 case GameState.Patched:
-                    if (command != null)
-                        StartGameUsingCommand(command);
-                    else
-                        CheckStartGame(null, null);
+                        CheckStartGame(command, null); //Command may be null but that's okay
                     break;
             }
             return retOpenedWindowShouldStay;
         }
 
-        private void StartGameUsingCommand(string command)
-        {
-            Process.Start(command);
-            EndWork(false);
-        }
-
         public enum GameState
         {
             NotFound,

GCMM/MainUtils.cs

@@ -35,7 +35,7 @@ namespace GCMM
         { //TODO
             string libs;
             if (Environment.OSVersion.Platform == PlatformID.Win32NT)
-                libs = @"C:\Program Files (x86)\Steam\steamapps\libraryfolders.vdf";
+                libs = Settings.Default.SteamConfigFileForAutoLaunch + @"\steamapps\libraryfolders.vdf";
             else
                 return null;
             foreach (var line in File.ReadAllLines(libs).Concat(new[] {@"C:\Program Files (x86)\Steam\"}))
@@ -67,6 +67,25 @@ namespace GCMM
             return Directory.GetParent(ofd.FileName).FullName;
         }
 
+        public string SelectSteamConfigFile()
+        {
+            MessageBox.Show("Please select your Steam config location in the next dialog. It's at Steam\\userdata\\<YourID>\\config\\localconfig.vdf");
+            var ofd = new OpenFileDialog();
+            ofd.Filter = "Steam config|localconfig.vdf";
+            ofd.Title = "Steam config location (Steam\\userdata\\<YourID>\\config\\localconfig.vdf)";
+            ofd.InitialDirectory = @"C:\Program Files (x86)\Steam\\userdata\"; //TODO
+            ofd.CheckFileExists = true;
+            ofd.ShowDialog();
+            if (string.IsNullOrWhiteSpace(ofd.FileName))
+                return null;
+            return ofd.FileName;
+        }
+
+        private void UpdateSteamConfigToAutoStart(bool autoLaunch)
+        {
+
+        }
+
         private void CheckStartGame(object sender, EventArgs e)
         {
             Action act = () =>
@@ -77,7 +96,9 @@ namespace GCMM
                     return;
                 }
                 if (CheckIfPatched() == GameState.Patched || unpatched.Checked)
-                    if (Environment.OSVersion.Platform == PlatformID.Win32NT)
+                    if (sender is string command)
+                        Process.Start(command);
+                    else if (Environment.OSVersion.Platform == PlatformID.Win32NT)
                         Process.Start("steam://run/1078000/");
                     else
                         Process.Start("xdg-open", "steam://run/1078000/");

GCMM/Properties/Settings.Designer.cs

@@ -12,7 +12,7 @@ namespace GCMM.Properties {
     
     
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "16.5.0.0")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "16.8.1.0")]
     internal sealed partial class Settings : global::System.Configuration.ApplicationSettingsBase {
         
         private static Settings defaultInstance = ((Settings)(global::System.Configuration.ApplicationSettingsBase.Synchronized(new Settings())));
@@ -70,5 +70,29 @@ namespace GCMM.Properties {
                 this["NeedsUpdate"] = value;
             }
         }
+        
+        [global::System.Configuration.UserScopedSettingAttribute()]
+        [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
+        [global::System.Configuration.DefaultSettingValueAttribute("")]
+        public string SteamConfigFileForAutoLaunch {
+            get {
+                return ((string)(this["SteamConfigFileForAutoLaunch"]));
+            }
+            set {
+                this["SteamConfigFileForAutoLaunch"] = value;
+            }
+        }
+        
+        [global::System.Configuration.UserScopedSettingAttribute()]
+        [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
+        [global::System.Configuration.DefaultSettingValueAttribute("True")]
+        public bool AutoLaunch {
+            get {
+                return ((bool)(this["AutoLaunch"]));
+            }
+            set {
+                this["AutoLaunch"] = value;
+            }
+        }
     }
 }

GCMM/Properties/Settings.settings

@@ -14,5 +14,11 @@
     <Setting Name="NeedsUpdate" Type="System.Boolean" Scope="User">
       <Value Profile="(Default)">True</Value>
     </Setting>
+    <Setting Name="SteamConfigFileForAutoLaunch" Type="System.String" Scope="User">
+      <Value Profile="(Default)" />
+    </Setting>
+    <Setting Name="AutoLaunch" Type="System.Boolean" Scope="User">
+      <Value Profile="(Default)">True</Value>
+    </Setting>
   </Settings>
 </SettingsFile>