Goner setup music: Change behaviour

- Hook into M_PlayMenuJam, to reduce bespoke behaviour
- Use the finalised track string
- Play on the Sound Options menu
Also, use MAIN_Goner as reference for the password field's presence, because I lost like 30 minutes to a related bug

src/k_menu.h

@@ -212,6 +212,7 @@ void M_GonerTutorial(INT32 choice);
 void M_GonerResetLooking(int type);
 void M_GonerCheckLooking(void);
 void M_GonerGDQ(boolean opinion);
+boolean M_GonerMusicPlayable(void);
 
 extern menuitem_t PLAY_CharSelect[];
 extern menu_t PLAY_CharSelectDef;

src/k_menufunc.c

@@ -357,11 +357,6 @@ void M_PlayMenuJam(void)
 	menu_t *refMenu = (menuactive ? currentMenu : restoreMenu);
 	static boolean musicstatepermitted = false;
 
-	if (M_GameTrulyStarted() == false)
-	{
-		return;
-	}
-
 	if (challengesmenu.pending)
 	{
 		Music_StopAll();
@@ -375,6 +370,17 @@ void M_PlayMenuJam(void)
 	if (Playing() || soundtest.playing)
 		return;
 
+	if (M_GameTrulyStarted() == false)
+	{
+		if (M_GonerMusicPlayable() && NotCurrentlyPlaying("_GONER"))
+		{
+			Music_Remap("menu", "_GONER");
+			Music_Play("menu");
+		}
+
+		return;
+	}
+
 	if (refMenu != NULL && refMenu->music != NULL)
 	{
 		if (refMenu->music[0] == '.' && refMenu->music[1] == '\0')
@@ -582,6 +588,7 @@ void M_StartControlPanel(void)
 			// Are you ready for the First Boot Experience?
 			M_ResetOptions();
 			currentMenu = &MAIN_GonerDef;
+			M_PlayMenuJam();
 		}
 		else if (cv_currprofile.value == -1) // Only ask once per session.
 		{

src/menus/main-goner.cpp

@@ -187,7 +187,7 @@ void M_AddGonerLines(void)
 	// This one always plays, so it checks the levelworking instead of gamedata.
 	if (goner_levelworking == GDGONER_INTRO)
 	{
-		if (!currentMenu->menuitems[0].mvar2)
+		if (!MAIN_Goner[0].mvar2)
 		{
 			LinesToDigest.emplace_front(GONERSPEAKER_EGGMAN, 0,
 				"Metal Sonic. Are you online?");
@@ -406,28 +406,19 @@ void M_GonerRailroad(bool set)
 	S_StartSound(NULL, sfx_s3k63);
 }
 
-void M_GonerPlayMusic(void)
-{
-	if (gamedata->gonerlevel <= GDGONER_SOUND || Music_Playing("menu"))
-		return;
-
-	Music_Remap("menu", "_OCEAN"); //"_GONER");
-	Music_Play("menu");
-}
-
 void M_GonerHidePassword(void)
 {
-	if (currentMenu->menuitems[0].mvar2)
+	if (MAIN_Goner[0].mvar2)
 		return;
 
-	currentMenu->menuitems[0] =
+	MAIN_Goner[0] =
 		{IT_STRING | IT_CALL, "EXIT PROGRAM",
 			"CONCLUDE OBSERVATIONS NOW.", NULL,
 			{.routine = M_QuitSRB2}, 0, 1};
 
 	S_StartSound(NULL, sfx_s3k5b);
 
-	M_GonerPlayMusic();
+	M_PlayMenuJam();
 }
 
 }; // namespace
@@ -451,6 +442,20 @@ void M_GonerResetLooking(int type)
 	goner_youactuallylooked = 0;
 }
 
+boolean M_GonerMusicPlayable(void)
+{
+	if (!MAIN_Goner[0].mvar2)
+		return false;
+
+	if (currentMenu == &OPTIONS_SoundDef)
+		return true;
+
+	if (gamedata->gonerlevel <= GDGONER_SOUND)
+		return false;
+
+	return true;
+}
+
 void M_GonerCheckLooking(void)
 {
 	if (goner_lasttypelooking != gamedata->gonerlevel)
@@ -487,7 +492,7 @@ void M_GonerTick(void)
 	{
 		first = goner_gdq = false;
 
-		currentMenu->menuitems[0] =
+		MAIN_Goner[0] =
 			{IT_STRING | IT_CVAR | IT_CV_STRING, ". . .",
 				"ATTEMPT ADMINISTRATOR ACCESS.", NULL,
 				{.cvar = &cv_dummyextraspassword}, 0, 0};
@@ -508,8 +513,6 @@ void M_GonerTick(void)
 			goner_levelworking--;
 		}
 
-		M_GonerPlayMusic();
-
 		lastseenlevel = gamedata->gonerlevel;
 	}