Added 'NoKeyboardCheats' option to IWADINFO

This is useful for IWADs that do not want to use the hardcoded engine cheats. This can still be overriden with the 'allcheats' CVAR

src/d_iwad.cpp

@@ -129,6 +129,10 @@ void FIWadManager::ParseIWadInfo(const char *fn, const char *data, int datasize,
 					sc.MustGetString();
 					iwad->MapInfo = sc.String;
 				}
+				else if (sc.Compare("NoKeyboardCheats"))
+				{
+					iwad->nokeyboardcheats = true;
+				}
 				else if (sc.Compare("Compatibility"))
 				{
 					sc.MustGetStringName("=");

src/d_main.cpp

@@ -2441,6 +2441,7 @@ void D_DoomMain (void)
 		const FIWADInfo *iwad_info = iwad_man->FindIWAD(allwads, iwad, basewad, optionalwad);
 		gameinfo.gametype = iwad_info->gametype;
 		gameinfo.flags = iwad_info->flags;
+		gameinfo.nokeyboardcheats = iwad_info->nokeyboardcheats;
 		gameinfo.ConfigName = iwad_info->Configname;
 		lastIWAD = iwad;
 

src/d_main.h

@@ -107,6 +107,7 @@ struct FIWADInfo
 	EGameType gametype = GAME_Doom;		// which game are we playing?
 	int StartupType = FStartupInfo::DefaultStartup;		// alternate startup type
 	FString MapInfo;		// Base mapinfo to load
+	bool nokeyboardcheats = false;		// disable keyboard cheats
 	TArray<FString> Load;	// Wads to be loaded with this one.
 	TArray<FString> Lumps;	// Lump names for identification
 	int flags = 0;

src/gi.h

@@ -112,6 +112,7 @@ struct gameinfo_t
 	FString ConfigName;
 
 	FString TitlePage;
+	bool nokeyboardcheats;
 	bool drawreadthis;
 	bool noloopfinalemusic;
 	bool intermissioncounter;

src/st_stuff.cpp

@@ -309,7 +309,7 @@ bool ST_Responder (event_t *ev)
 {
 	bool eat = false;
 
-	if (nocheats || !!cl_blockcheats)
+	if (nocheats || !!cl_blockcheats || (gameinfo.nokeyboardcheats && !allcheats))
 	{
 		return false;
 	}