General Menu Message input cleanup

- M_StopMessage is now in charge of setting the answer to a given prompt.
- Menu Messages can now be dismissed on the title screen, instead of carried into the top-level menu transition.

src/d_clisrv.c

@@ -1676,6 +1676,8 @@ static boolean M_ConfirmConnect(void)
 	if (G_PlayerInputDown(0, gc_b, 1) || G_PlayerInputDown(0, gc_x, 1) || G_GetDeviceGameKeyDownArray(0)[KEY_ESCAPE])
 	{
 		cl_requestmode = CL_ABORTED;
+
+		M_StopMessage(MA_NO);
 		return true;
 	}
 
@@ -1704,6 +1706,7 @@ static boolean M_ConfirmConnect(void)
 		else
 			cl_requestmode = CL_LOADFILES;
 
+		M_StopMessage(MA_YES);
 		return true;
 	}
 
@@ -2174,7 +2177,7 @@ static boolean CL_ServerConnectionTicker(const char *tmpsave, tic_t *oldtic, tic
 				I_lock_mutex(&k_menu_mutex);
 #endif
 				if (M_MenuMessageTick() && M_ConfirmConnect())
-					M_StopMessage(0);
+					;
 				else if (menumessage.active == false)
 					cl_mode = cl_requestmode;
 #ifdef HAVE_THREADS

src/f_finale.c

@@ -2131,8 +2131,10 @@ void F_TitleScreenTicker(boolean run)
 			// Now start the music
 			S_ChangeMusicInternal("_title", looptitle);
 		}
-		else if (menumessage.fadetimer < 9)
-			menumessage.fadetimer++;
+		else if (menumessage.active)
+		{
+			M_MenuMessageTick();
+		}
 
 		finalecount++;
 	}

src/k_menufunc.c

@@ -539,6 +539,21 @@ void M_StartControlPanel(void)
 		// (We can change this timer later when extra animation is added.)
 		if (finalecount < 1)
 			return;
+
+		if (menumessage.active)
+		{
+			if (!menumessage.closing && menumessage.fadetimer == 9)
+			{
+				// The following doesn't work with MM_YESNO.
+				// However, because there's no guarantee a profile
+				// is selected or controls set up to our liking,
+				// we can't call M_HandleMenuMessage.
+
+				M_StopMessage(MA_NONE);
+			}
+
+			return;
+		}
 	}
 
 	menuactive = true;
@@ -549,8 +564,6 @@ void M_StartControlPanel(void)
 	}
 	else if (!Playing())
 	{
-		M_StopMessage(0); // Doesn't work with MM_YESNO or MM_EVENTHANDLER... but good enough to get the game as it is currently functional again
-
 		if (gamestate != GS_MENU)
 		{
 			G_SetGamestate(GS_MENU);

src/menus/transient/message-box.c

@@ -136,11 +136,14 @@ void M_StartMessage(const char *header, const char *string, void (*routine)(INT3
 
 void M_StopMessage(INT32 choice)
 {
+	if (!menumessage.active || menumessage.closing)
+		return;
+
 	const char pid = 0;
-	(void) choice;
 
 	menumessage.closing = true;
 	menumessage.timer = 0;
+	menumessage.answer = choice;
 	M_SetMenuDelay(pid);
 }
 
@@ -192,20 +195,18 @@ void M_HandleMenuMessage(void)
 		case MM_YESNO:
 		{
 			if (btok)
-				menumessage.answer = MA_YES;
+				M_StopMessage(MA_YES);
 			else if (btnok)
-				menumessage.answer = MA_NO;
+				M_StopMessage(MA_NO);
 
 			break;
 		}
 		default:
-			break;
-	}
+		{
+			if (btok || btnok)
+				M_StopMessage(MA_NONE);
 
-	// if we detect any keypress, don't forget to set the menu delay regardless.
-	if (btok || btnok)
-	{
-		M_StopMessage(0);
-		M_SetMenuDelay(pid);
+			break;
+		}
 	}
 }