- Discord RPC presence. Adds new IWADINFO and GAMEINFO keys: DiscordAppId - this should point to your AppId for your game. It will use a default GZDoom one if not found.

src/d_main.cpp

@@ -154,6 +154,7 @@ void M_SaveDefaultsFinal();
 void R_Shutdown();
 void I_ShutdownInput();
 void SetConsoleNotifyBuffer();
+void I_UpdateDiscordPresence(bool SendPresence, const char* curstatus, const char* appid);
 
 const FIWADInfo *D_FindIWAD(TArray<FString> &wadfiles, const char *iwad, const char *basewad);
 
@@ -1875,6 +1876,11 @@ static FString ParseGameInfo(TArray<FString> &pwads, const char *fn, const char
 			sc.MustGetNumber();
 			GameStartupInfo.LoadWidescreen = !!sc.Number;
 		}
+		else if (!nextKey.CompareNoCase("DISCORDAPPID"))
+		{
+			sc.MustGetString();
+			GameStartupInfo.DiscordAppId = !!sc.String;
+		}
 		else
 		{
 			// Silently ignore unknown properties
@@ -3696,6 +3702,7 @@ void D_Cleanup()
 	GameStartupInfo.Name = "";
 	GameStartupInfo.BkColor = GameStartupInfo.FgColor = GameStartupInfo.Type = 0;
 	GameStartupInfo.LoadWidescreen = GameStartupInfo.LoadLights = GameStartupInfo.LoadBrightmaps = -1;
+	GameStartupInfo.DiscordAppId = "";
 	
 	GC::FullGC();					// clean up before taking down the object list.
 	
@@ -3785,6 +3792,7 @@ void I_UpdateWindowTitle()
 		titlestr = GameStartupInfo.Name;
 		break;
 	default:
+		I_UpdateDiscordPresence(false, NULL, GameStartupInfo.DiscordAppId.GetChars());
 		I_SetWindowTitle(NULL);
 		return;
 	}
@@ -3814,5 +3822,6 @@ void I_UpdateWindowTitle()
 		}
 	}
 	*dstp = 0;
+	I_UpdateDiscordPresence(true, copy.Data(), GameStartupInfo.DiscordAppId.GetChars());
 	I_SetWindowTitle(copy.Data());
 }