feat(online): Add Discord Rich Presence

Author: VodkaNET

GeneralsMD/Code/GameEngine/CMakeLists.txt

@@ -1137,6 +1137,8 @@ set(GAMEENGINE_SRC
     Source/Precompiled/PreRTS.cpp
 
     Include/GameNetwork/GeneralsOnline/json.hpp
+    Include/GameNetwork/GeneralsOnline/DiscordRichPresence.h
+    Include/GameNetwork/GeneralsOnline/Vendor/DiscordRPC/discord_rpc.h
     Include/GameNetwork/GeneralsOnline/NetworkBitstream.h
     Include/GameNetwork/GeneralsOnline/NetworkMesh.h
     Include/GameNetwork/GeneralsOnline/NetworkPacket.h
@@ -1181,6 +1183,7 @@ set(GAMEENGINE_SRC
     Include/GameNetwork/GeneralsOnline/Vendor/libcurl/typecheck-gcc.h
     Include/GameNetwork/GeneralsOnline/Vendor/libcurl/urlapi.h
     Include/GameNetwork/GeneralsOnline/Vendor/libcurl/websockets.h
+    Source/GameNetwork/GeneralsOnline/DiscordRichPresence.cpp
     Source/GameNetwork/GeneralsOnline/NGMP_Helpers.cpp
     Source/GameNetwork/GeneralsOnline/NGMPGame.cpp
     Source/GameNetwork/GeneralsOnline/GeneralsOnline_Settings.cpp
@@ -1249,4 +1252,4 @@ target_precompile_headers(z_gameengine PRIVATE
 
 
 add_compile_definitions(_DISABLE_CONSTEXPR_MUTEX_CONSTRUCTOR)
-add_compile_definitions(GENERALS_ONLINE)
+add_compile_definitions(GENERALS_ONLINE)

GeneralsMD/Code/GameEngine/Include/Common/GameEngine.h

@@ -49,6 +49,7 @@ class FunctionLexicon;
 class Radar;
 class WebBrowser;
 class ParticleSystemManager;
+class GeneralsOnlineDiscordRPC;
 
 void TearDownGeneralsOnline();
 
@@ -106,6 +107,7 @@ class GameEngine : public SubsystemInterface
 
 	Bool m_quitting; ///< true when we need to quit the game
 	Bool m_isActive; ///< app has OS focus.
+	GeneralsOnlineDiscordRPC* m_discordRichPresence;
 };
 
 inline void GameEngine::setQuitting( Bool quitting ) { m_quitting = quitting; }

GeneralsMD/Code/GameEngine/Include/GameNetwork/GeneralsOnline/DiscordRichPresence.h

@@ -0,0 +1,57 @@
+#pragma once
+
+#include "GameNetwork/GeneralsOnline/Vendor/DiscordRPC/discord_rpc.h"
+
+#include <chrono>
+#include <string>
+
+class NGMP_OnlineServices_LobbyInterface;
+
+// TheSuperHackers @feature ultimate2000 19/07/2026 Adds Discord Rich Presence
+// for Generals Online lobbies and matches.
+class GeneralsOnlineDiscordRPC {
+public:
+  GeneralsOnlineDiscordRPC() = default;
+  ~GeneralsOnlineDiscordRPC();
+
+  bool Initialize();
+  void Shutdown();
+  void Tick(const NGMP_OnlineServices_LobbyInterface *lobbyInterface);
+
+private:
+  using InitializeFunction = void (*)(const char *, DiscordEventHandlers *, int,
+                                      const char *);
+  using ShutdownFunction = void (*)();
+  using RunCallbacksFunction = void (*)();
+  using UpdatePresenceFunction = void (*)(const DiscordRichPresence *);
+  using ClearPresenceFunction = void (*)();
+
+  struct PresenceData {
+    std::string state;
+    std::string details;
+    std::string largeImageKey;
+    std::string largeImageText;
+    std::string smallImageKey;
+    std::string smallImageText;
+    std::string partyId;
+    int partySize = 0;
+    int partyMax = 0;
+
+    std::string Fingerprint() const;
+  };
+
+  PresenceData
+  BuildPresence(const NGMP_OnlineServices_LobbyInterface *lobbyInterface) const;
+  void UpdatePresence(const PresenceData &data);
+  void ResetFunctions();
+
+  void *m_module = nullptr;
+  InitializeFunction m_initialize = nullptr;
+  ShutdownFunction m_shutdown = nullptr;
+  RunCallbacksFunction m_runCallbacks = nullptr;
+  UpdatePresenceFunction m_updatePresence = nullptr;
+  ClearPresenceFunction m_clearPresence = nullptr;
+  bool m_initialized = false;
+  std::string m_lastPresence;
+  std::chrono::steady_clock::time_point m_nextPresenceUpdate;
+};

GeneralsMD/Code/GameEngine/Include/GameNetwork/GeneralsOnline/OnlineServices_LobbyInterface.h

@@ -237,6 +237,11 @@ class NGMP_OnlineServices_LobbyInterface
 		return m_CurrentLobby;
 	}
 
+	const LobbyEntry& GetCurrentLobby() const
+	{
+		return m_CurrentLobby;
+	}
+
 	NGMPGame* GetCurrentGame()
 	{
 		return TheNGMPGame;

GeneralsMD/Code/GameEngine/Include/GameNetwork/GeneralsOnline/Vendor/DiscordRPC/discord_rpc.h

@@ -0,0 +1,45 @@
+#pragma once
+
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct DiscordRichPresence {
+  const char *state;
+  const char *details;
+  int64_t startTimestamp;
+  int64_t endTimestamp;
+  const char *largeImageKey;
+  const char *largeImageText;
+  const char *smallImageKey;
+  const char *smallImageText;
+  const char *partyId;
+  int partySize;
+  int partyMax;
+  const char *matchSecret;
+  const char *joinSecret;
+  const char *spectateSecret;
+  int8_t instance;
+} DiscordRichPresence;
+
+typedef struct DiscordUser {
+  const char *userId;
+  const char *username;
+  const char *discriminator;
+  const char *avatar;
+} DiscordUser;
+
+typedef struct DiscordEventHandlers {
+  void (*ready)(const DiscordUser *request);
+  void (*disconnected)(int errorCode, const char *message);
+  void (*errored)(int errorCode, const char *message);
+  void (*joinGame)(const char *joinSecret);
+  void (*spectateGame)(const char *spectateSecret);
+  void (*joinRequest)(const DiscordUser *request);
+} DiscordEventHandlers;
+
+#ifdef __cplusplus
+}
+#endif

GeneralsMD/Code/GameEngine/Source/Common/GameEngine.cpp

@@ -112,6 +112,8 @@
 
 // GENERALS ONLINE
 #include "../OnlineServices_Init.h"
+#include "GameNetwork/GeneralsOnline/DiscordRichPresence.h"
+#include "GameNetwork/GeneralsOnline/OnlineServices_LobbyInterface.h"
 #include "GameNetwork/GameSpyOverlay.h"
 #include <chrono>
 #include "ww3d.h"
@@ -295,13 +297,17 @@ GameEngine::GameEngine()
 	m_logicTimeAccumulator = 0.0f;
 	m_quitting = FALSE;
 	m_isActive = FALSE;
+	m_discordRichPresence = nullptr;
 
 	_Module.Init(nullptr, ApplicationHInstance, nullptr);
 }
 
 //-------------------------------------------------------------------------------------------------
 GameEngine::~GameEngine()
 {
+	delete m_discordRichPresence;
+	m_discordRichPresence = nullptr;
+
 	//extern std::vector<std::string>	preloadTextureNamesGlobalHack;
 	//preloadTextureNamesGlobalHack.clear();
 
@@ -822,6 +828,9 @@ void GameEngine::init()
 
 	// NGMP_CHANGE: Init our settings
 	NGMP_OnlineServicesManager::Settings.Initialize();
+
+	m_discordRichPresence = new GeneralsOnlineDiscordRPC();
+	m_discordRichPresence->Initialize();
 }
 
 /** -----------------------------------------------------------------------------------------------
@@ -990,6 +999,12 @@ void GameEngine::update()
 			{
 				NGMP_OnlineServicesManager::GetInstance()->Tick();
 			}
+
+			if (m_discordRichPresence != nullptr)
+			{
+				m_discordRichPresence->Tick(
+					NGMP_OnlineServicesManager::GetInterface<NGMP_OnlineServices_LobbyInterface>());
+			}
 		}
 
 		const Bool canUpdate = canUpdateGameLogic(FramePacer::IgnoreFrozenTime | FramePacer::IgnoreHaltedGame);