feat: add GameSpy service unavailable dialog

resolves #127

code/client/cl_ui.cpp

@@ -29,6 +29,7 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 #include "../qcommon/q_version.h"
 
 #include "cl_ui.h"
+#include "cl_uigamespy.h"
 
 #include <ctime>
 
@@ -5346,6 +5347,7 @@ void CL_InitializeUI(void)
     Cmd_AddCommand("setreturnmenu", UI_SetReturnMenuToCurrent);
     Cmd_AddCommand("gotoreturnmenu", UI_PushReturnMenu_f);
     Cmd_AddCommand("salesscreen", UI_SalesScreen_f);
+    Cmd_AddCommand("launchgamespy", UI_LaunchGameSpy_f);
 
     if (developer->integer) {
         UColor bgColor;

code/client/cl_uigamespy.cpp

@@ -0,0 +1,109 @@
+/*
+===========================================================================
+Copyright (C) 2025 the OpenMoHAA team
+
+This file is part of OpenMoHAA source code.
+
+OpenMoHAA source code is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+OpenMoHAA source code is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with OpenMoHAA source code; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+===========================================================================
+*/
+
+// cl_uigamespy.cpp
+#include "cl_uigamespy.h"
+
+CLASS_DECLARATION(UIFloatingWindow, GameSpyDialog, NULL) {
+    {&W_Deactivated, &UIFloatingWindow::ClosePressed},
+    {NULL, NULL}
+};
+
+GameSpyDialog::GameSpyDialog() {    
+    overlay = new UIButton();
+    overlay->InitFrame(NULL, 
+        UIRect2D(0, 0, uid.vidWidth, uid.vidHeight),
+        0);    
+    overlay->setBackgroundColor(UColor(0, 0, 0, 0.5f), true);
+    overlay->AllowActivate(true);
+    
+    overlay->Connect(this, W_Button_Pressed, W_Deactivated);
+
+    Connect(this, W_Deactivated, W_Deactivated);
+
+    AddFlag(WF_ALWAYS_TOP);
+}
+
+GameSpyDialog::~GameSpyDialog() {
+    if (overlay) {
+        delete overlay;
+        overlay = NULL;
+    }
+
+    if (label) {
+        delete label;
+        label = NULL;
+    }
+
+    if (closeButton) {
+        delete closeButton;
+        closeButton = NULL;
+    }
+}
+
+void GameSpyDialog::FrameInitialized(void) {
+    UIFloatingWindow::FrameInitialized();
+    
+    label = new UILabel();
+    
+    label->InitFrame(getChildSpace(), getChildSpace()->getClientFrame(), 0);
+    label->setTitle("GameSpy's multiplayer matchmaking\n"
+        "and server browsing services, which were\n"
+        "essential for online gaming in many classic\n"
+        "titles including Medal of Honor: Allied Assault,\n"
+        "were permanently shut down in 2014.");
+    label->setForegroundColor(UHudColor);
+
+    closeButton = new UIButton();
+    closeButton->InitFrame(getChildSpace(), 
+        UIRect2D(100, 150, 100, 30),
+        0);
+    closeButton->setTitle("Close");
+    closeButton->AllowActivate(true);
+    closeButton->Connect(this, W_Button_Pressed, W_Deactivated);
+}
+
+void GameSpyDialog::Create(UIWidget* parent, const UIRect2D& rect, const char* title, const UColor& bgColor, const UColor& fgColor) 
+{
+    // First call parent's Create
+    UIFloatingWindow::Create(parent, rect, title, bgColor, fgColor);
+    
+    // After creation, find minimize button by name and hide it
+    for(UIWidget* child = getFirstChild(); child; child = getNextChild(child)) {
+        if (strcmp(child->getName(), "minimizebutton") == 0) {
+            child->setShow(false);
+            break;
+        }
+    }
+}
+
+void UI_LaunchGameSpy_f(void) {
+    GameSpyDialog *dialog = new GameSpyDialog();
+
+    dialog->Create(
+        NULL,
+        UIRect2D((uid.vidWidth - 300) / 2, (uid.vidHeight - 200) / 2, 300, 200),
+        "GameSpy",
+        UColor(0.15f, 0.195f, 0.278f),
+        UHudColor
+    );
+}

code/client/cl_uigamespy.h

@@ -0,0 +1,48 @@
+/*
+===========================================================================
+Copyright (C) 2025 the OpenMoHAA team
+
+This file is part of OpenMoHAA source code.
+
+OpenMoHAA source code is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+OpenMoHAA source code is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with OpenMoHAA source code; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+===========================================================================
+*/
+
+// cl_gamespy.h
+#ifndef __CL_GAMESPY_H__
+#define __CL_GAMESPY_H__
+
+#include "cl_ui.h"
+#include "keycodes.h"
+
+class GameSpyDialog : public UIFloatingWindow {
+private:
+    UIButton    *overlay;
+    UILabel     *label;
+    UIButton    *closeButton;
+
+protected:
+	void		FrameInitialized( void ) override;
+
+public:
+    GameSpyDialog();
+    ~GameSpyDialog();
+    void Create(UIWidget* parent, const UIRect2D& rect, const char* title, const UColor& bgColor, const UColor& fgColor);
+
+    CLASS_PROTOTYPE(GameSpyDialog);
+};
+
+void UI_LaunchGameSpy_f(void);
+#endif