WIP - credits audio/wipe fixes, document this later

src/d_main.cpp

@@ -427,6 +427,9 @@ static bool D_Display(void)
 		{
 			// Fade to black first
 			if (G_GamestateUsesLevel() == false // fades to black on its own timing, always
+				// Wipe between credits slides.
+				// But not back from attract demo, since F_CreditsDemoExitFade exists.
+				&& (gamestate != GS_CREDITS || wipegamestate != GS_LEVEL)
 				&& wipetypepre != UINT8_MAX)
 			{
 				F_WipeStartScreen();
@@ -1120,8 +1123,11 @@ void D_ClearState(void)
 	if (rendermode != render_none)
 		V_SetPaletteLump("PLAYPAL");
 
-	S_StopMusicCredit();
+	if (!Music_Playing("credits"))
+		S_StopMusicCredit();
+
 	S_StopSounds();
+	S_SetSfxVolume(); // reset sound volume
 
 	if (gamedata && gamedata->deferredsave)
 		G_SaveGameData();

src/f_finale.c

@@ -49,6 +49,7 @@
 #include "k_grandprix.h"
 #include "music.h"
 #include "k_credits.h"
+#include "i_sound.h"
 
 // Stage of animation:
 // 0 = text, 1 = art screen
@@ -1858,6 +1859,13 @@ luahook:
 		M_DrawMenuMessage();
 }
 
+void F_PlayTitleScreenMusic(void)
+{
+	Music_Loop("title", looptitle);
+	Music_Seek("title", 38749); // kick in
+	Music_Play("title");
+}
+
 // (no longer) De-Demo'd Title Screen
 void F_TitleScreenTicker(boolean run)
 {
@@ -1874,8 +1882,7 @@ void F_TitleScreenTicker(boolean run)
 			else if (!Music_Playing("title"))
 			{
 				// Now start the music
-				Music_Loop("title", looptitle);
-				Music_Play("title");
+				F_PlayTitleScreenMusic();
 			}
 		}
 		else if (menumessage.active)
@@ -2094,6 +2101,13 @@ void F_AttractDemoTicker(void)
 			attractcredit = false;
 		}
 
+		INT32 val = F_AttractDemoExitFade();
+		if (val >= 0)
+		{
+			// Fade down sounds with screen fade
+			I_SetSfxVolume(cv_soundvolume.value * (31 - val) / 31);
+		}
+
 		if (attractcountdown > 0 && !--attractcountdown)
 		{
 			// Fade will be handled without a wipe (see F_AttractDemoExitFade)

src/f_finale.h

@@ -71,6 +71,8 @@ void F_StartIntro(void);
 void F_StartTitleScreen(void);
 void F_StartEnding(void);
 
+void F_PlayTitleScreenMusic(void);
+
 extern INT32 finalecount;
 extern INT32 titlescrollxspeed;
 extern INT32 titlescrollyspeed;

src/k_credits.cpp

@@ -79,6 +79,7 @@ struct credits_slide_s
 	std::vector<std::string> strings;
 	size_t strings_height;
 	boolean play_demo_afterwards;
+	int fade_out_music;
 };
 
 static std::vector<struct credits_slide_s> g_credits_slides;
@@ -233,6 +234,7 @@ void F_LoadCreditsDefinitions(void)
 			}
 
 			slide.play_demo_afterwards = slide_obj.value("demo", false);
+			slide.fade_out_music = slide_obj.value("fade_out_music", 0);
 
 			g_credits_slides.push_back( slide );
 		}
@@ -367,6 +369,10 @@ static void F_InitCreditsSlide(void)
 		}
 	}
 #endif
+	else if (slide->type == CRED_TYPE_KARTKREW)
+	{
+
+	}
 
 	// Clear the console hud just to avoid anything getting in the way.
 	CON_ClearHUD();
@@ -449,6 +455,9 @@ void F_ContinueCredits(void)
 	F_CreditsReset();
 	demo.attract = DEMO_ATTRACT_OFF;
 
+	// Do not wipe back to credits, since F_CreditsDemoExitFade exists.
+	wipegamestate = GS_LEVEL;
+
 	// Returning from playing a demo.
 	// Go to the next slide.
 	F_CreditsNextSlide();
@@ -559,6 +568,12 @@ void F_TickCreditsDemoExit(void)
 		g_credits.demo_exit = std::max(g_credits.demo_exit, kDemoExitTicCount - 64);
 	}
 
+	if (INT32 val = F_CreditsDemoExitFade(); val >= 0)
+	{
+		// Fade down sounds with screen fade
+		I_SetSfxVolume(cv_soundvolume.value * (31 - val) / 31);
+	}
+
 	if (g_credits.demo_exit > kDemoExitTicCount)
 	{
 		G_CheckDemoStatus();
@@ -811,6 +826,11 @@ static void F_HandleCreditsTick(void)
 	}
 	else if (finalize_slide)
 	{
+		if (slide->fade_out_music)
+		{
+			I_FadeSong(0, slide->fade_out_music, nullptr);
+		}
+
 		if (g_credits.current_slide >= g_credits_slides.size() - 1)
 		{
 			g_credits.finish_counter = 5 * TICRATE;
@@ -1205,3 +1225,8 @@ void F_CreditDrawer(void)
 		star.y += FixedMul(star.vel_y, renderdeltatics);
 	}
 }
+
+boolean F_CreditsRunning(void)
+{
+	return gamestate == GS_CREDITS || demo.attract == DEMO_ATTRACT_CREDITS;
+}

src/k_credits.h

@@ -38,6 +38,8 @@ void F_CreditTicker(void);
 
 void F_CreditDrawer(void);
 
+boolean F_CreditsRunning(void);
+
 #ifdef __cplusplus
 } // extern "C"
 #endif

src/p_setup.cpp

@@ -116,6 +116,7 @@
 #include "k_dialogue.h"
 #include "k_hud.h" // K_ClearPersistentMessages
 #include "k_endcam.h"
+#include "k_credits.h"
 
 // Replay names have time
 #if !defined (UNDER_CE)
@@ -7651,8 +7652,11 @@ static void P_InitLevelSettings(void)
 	g_quakes = NULL;
 
 	// song credit init
-	S_StopMusicCredit();
-	cursongcredit.trans = NUMTRANSMAPS;
+	if (!Music_Playing("credits"))
+	{
+		S_StopMusicCredit();
+		cursongcredit.trans = NUMTRANSMAPS;
+	}
 
 	for (i = 0; i < MAXPLAYERS; i++)
 	{

src/s_sound.c

@@ -38,6 +38,7 @@
 #include "v_video.h" // V_ThinStringWidth
 #include "music.h"
 #include "y_inter.h" // Y_PlayIntermissionMusic
+#include "f_finale.h" // F_PlayTitleScreenMusic
 
 extern consvar_t cv_mastervolume;
 
@@ -1224,8 +1225,7 @@ void S_AttemptToRestoreMusic(void)
 			Music_Play("level");
 			break;
 		case GS_TITLESCREEN:
-			Music_Loop("title", looptitle);
-			Music_Play("title");
+			F_PlayTitleScreenMusic();
 			break;
 		case GS_MENU:
 			M_PlayMenuJam();