1 files changed, 294 insertions, 218 deletions

diff --git a/src/audio/MusicManager.cpp b/src/audio/MusicManager.cpp
index 374de081..d229ef8d 100644
--- a/src/audio/MusicManager.cpp
+++ b/src/audio/MusicManager.cpp
@@ -21,6 +21,10 @@
 #include "DMAudio.h"
 #include "GenericGameStorage.h"
 
+#if !defined FIX_BUGS && (defined RADIO_SCROLL_TO_PREV_STATION || defined RADIO_OFF_TEXT)
+static_assert(false, "R*'s radio implementation is quite buggy, RADIO_SCROLL_TO_PREV_STATION and RADIO_OFF_TEXT won't work without FIX_BUGS");
+#endif
+
 cMusicManager MusicManager;
 int32 gNumRetunePresses;
 int32 gRetuneCounter;
@@ -52,7 +56,7 @@ cMusicManager::cMusicManager()
 	m_nPlayingTrack = NO_TRACK;
 	m_nUpcomingMusicMode = MUSICMODE_DISABLED;
 	m_nMusicMode = MUSICMODE_DISABLED;
-	field_2 = false;
+	m_bSetNextStation = false;
 
 	for (int i = 0; i < NUM_RADIOS; i++)
 		aListenTimeArray[i] = 0.0f;
@@ -71,27 +75,27 @@ cMusicManager::ResetMusicAfterReload()
 	float afRadioTime[NUM_RADIOS];
 
 	m_bRadioSetByScript = false;
-	m_nRadioStation = WILDSTYLE;
+	m_nRadioStationScript = WILDSTYLE;
 	m_nRadioPosition = -1;
 	m_nAnnouncement = NO_TRACK;
 	m_bAnnouncementInProgress = false;
-	field_2 = false;
+	m_bSetNextStation = false;
 	RadioStaticTimer = 0;
 	gNumRetunePresses = 0;
 	gRetuneCounter = 0;
 	m_nFrontendTrack = NO_TRACK;
 	m_nPlayingTrack = NO_TRACK;
-	field_398E = false;
-	field_398F = false;
-	m_nStreamedTrack = NO_TRACK;
-	field_3994 = false;
-	field_3995 = false;
-	field_3996 = false;
-	field_3997 = false;
+	m_FrontendLoopFlag = false;
+	m_bTrackChangeStarted = false;
+	m_nNextTrack = NO_TRACK;
+	m_nNextLoopFlag = false;
+	m_bVerifyNextTrackStartedToPlay = false;
+	m_bGameplayAllowsRadio = false;
+	m_bRadioStreamReady = false;
 	nFramesSinceCutsceneEnded = -1;
-	field_3999 = false;
-	field_399A = false;
-	field_399C = false;
+	m_bUserResumedGame = false;
+	m_bMusicModeChangeStarted = false;
+	m_bEarlyFrontendTrack = false;
 	m_nVolumeLatency = 0;
 	m_nCurrentVolume = 0;
 	m_nMaxVolume = 0;
@@ -108,7 +112,7 @@ cMusicManager::ResetMusicAfterReload()
 
 	for (int i = 0; i < NUM_RADIOS; i++) {
 		aListenTimeArray[i] = afRadioTime[i];
-		uint32 trackPos = GetSavedRadioStationPosition(i);
+		int32 trackPos = GetSavedRadioStationPosition(i);
 		if (trackPos != -1) {
 			if (trackPos > m_aTracks[i].m_nLength) {
 				debug("Radio Track %d saved position is %d, Length is only %d\n", i, trackPos, m_aTracks[i].m_nLength);
@@ -179,7 +183,7 @@ cMusicManager::Initialise()
 		m_bResetTimers = false;
 		m_nResetTime = 0;
 		m_bRadioSetByScript = false;
-		m_nRadioStation = WILDSTYLE;
+		m_nRadioStationScript = WILDSTYLE;
 		m_nRadioPosition = -1;
 		m_nRadioInCar = NO_TRACK;
 		gRetuneCounter = 0;
@@ -188,18 +192,18 @@ cMusicManager::Initialise()
 		m_nPlayingTrack = NO_TRACK;
 		m_nUpcomingMusicMode = MUSICMODE_DISABLED;
 		m_nMusicMode = MUSICMODE_DISABLED;
-		field_398E = false;
-		field_398F = false;
-		m_nStreamedTrack = NO_TRACK;
-		field_3994 = false;
-		field_3995 = false;
-		field_3996 = false;
-		field_3997 = false;
+		m_FrontendLoopFlag = false;
+		m_bTrackChangeStarted = false;
+		m_nNextTrack = NO_TRACK;
+		m_nNextLoopFlag = false;
+		m_bVerifyNextTrackStartedToPlay = false;
+		m_bGameplayAllowsRadio = false;
+		m_bRadioStreamReady = false;
 		nFramesSinceCutsceneEnded = -1;
-		field_3999 = false;
-		field_399A = false;
+		m_bUserResumedGame = false;
+		m_bMusicModeChangeStarted = false;
 		m_nMusicModeToBeSet = MUSICMODE_DISABLED;
-		field_399C = false;
+		m_bEarlyFrontendTrack = false;
 		m_nVolumeLatency = 0;
 		m_nCurrentVolume = 0;
 		m_nMaxVolume = 0;
@@ -227,7 +231,7 @@ cMusicManager::SetRadioChannelByScript(uint32 station, int32 pos)
 			station = STREAMED_SOUND_CITY_AMBIENT;
 		if (station <= STREAMED_SOUND_RADIO_POLICE) {
 			m_bRadioSetByScript = true;
-			m_nRadioStation = station;
+			m_nRadioStationScript = station;
 			m_nRadioPosition = pos == -1 ? -1 : pos % m_aTracks[station].m_nLength;
 		}
 	}
@@ -292,7 +296,7 @@ cMusicManager::SetRadioInCar(uint32 station)
 void
 cMusicManager::RecordRadioStats()
 {
-	if (m_nPlayingTrack < STREAMED_SOUND_CITY_AMBIENT) {
+	if (m_nPlayingTrack < NUM_RADIOS) {
 		double time /*Rusty*/ = CTimer::GetTimeInMillisecondsPauseMode();
 		if (time > m_nLastTrackServiceTime)
 			aListenTimeArray[m_nPlayingTrack] += time - m_nLastTrackServiceTime;
@@ -321,11 +325,11 @@ cMusicManager::ChangeMusicMode(uint8 mode)
 		while (SampleManager.IsStreamPlaying(0))
 			SampleManager.StopStreamedFile(0);
 		m_nMusicMode = m_nUpcomingMusicMode;
-		field_399A = false;
-		field_398F = false;
-		m_nStreamedTrack = NO_TRACK;
-		field_3994 = false;
-		field_3995 = false;
+		m_bMusicModeChangeStarted = false;
+		m_bTrackChangeStarted = false;
+		m_nNextTrack = NO_TRACK;
+		m_nNextLoopFlag = false;
+		m_bVerifyNextTrackStartedToPlay = false;
 		m_nPlayingTrack = NO_TRACK;
 		m_nFrontendTrack = NO_TRACK;
 		m_bAnnouncementInProgress = false;
@@ -356,7 +360,7 @@ cMusicManager::Service()
 
 	if (!m_bIsInitialised || m_bDisabled) return;
 
-	if (!field_399A)
+	if (!m_bMusicModeChangeStarted)
 		m_nMusicModeToBeSet = m_nUpcomingMusicMode;
 	if (m_nMusicModeToBeSet == m_nMusicMode) {
 		if (!AudioManager.m_nUserPause || AudioManager.m_nPreviousUserPause || m_nMusicMode != MUSICMODE_FRONTEND)
@@ -371,13 +375,13 @@ cMusicManager::Service()
 		else
 			m_nMusicMode = MUSICMODE_DISABLED;
 	} else {
-		field_399A = true;
-		if (!field_3999 && !AudioManager.m_nUserPause && AudioManager.m_nPreviousUserPause)
-			field_3999 = true;
+		m_bMusicModeChangeStarted = true;
+		if (!m_bUserResumedGame && !AudioManager.m_nUserPause && AudioManager.m_nPreviousUserPause)
+			m_bUserResumedGame = true;
 		if (AudioManager.m_FrameCounter % 4 == 0) {
 			gNumRetunePresses = 0;
 			gRetuneCounter = 0;
-			field_2 = false;
+			m_bSetNextStation = false;
 			if (SampleManager.IsStreamPlaying(0)) {
 				if (m_nPlayingTrack != NO_TRACK && !bRadioStatsRecorded)
 				{
@@ -390,14 +394,14 @@ cMusicManager::Service()
 			} else {
 				bRadioStatsRecorded = false;
 				m_nMusicMode = m_nMusicModeToBeSet;
-				field_399A = false;
-				field_398F = false;
-				m_nStreamedTrack = NO_TRACK;
-				field_3994 = false;
-				field_3995 = false;
+				m_bMusicModeChangeStarted = false;
+				m_bTrackChangeStarted = false;
+				m_nNextTrack = NO_TRACK;
+				m_nNextLoopFlag = false;
+				m_bVerifyNextTrackStartedToPlay = false;
 				m_nPlayingTrack = NO_TRACK;
-				if (field_399C)
-					field_399C = false;
+				if (m_bEarlyFrontendTrack)
+					m_bEarlyFrontendTrack = false;
 				else
 					m_nFrontendTrack = NO_TRACK;
 			}
@@ -417,19 +421,19 @@ cMusicManager::ServiceFrontEndMode()
 		g_bAnnouncementReadPosAlready = false;
 		m_nAnnouncement = NO_TRACK;
 		m_bAnnouncementInProgress = false;
-		m_nStreamedTrack = NO_TRACK;
+		m_nNextTrack = NO_TRACK;
 		m_nFrontendTrack = NO_TRACK;
 		m_nPlayingTrack = NO_TRACK;
 	}
 
 	if (AudioManager.m_FrameCounter % 4 != 0) return;
 
-	if (!field_398F && !field_3995) {
-		m_nStreamedTrack = m_nFrontendTrack;
-		field_3994 = field_398E;
+	if (!m_bTrackChangeStarted && !m_bVerifyNextTrackStartedToPlay) {
+		m_nNextTrack = m_nFrontendTrack;
+		m_nNextLoopFlag = m_FrontendLoopFlag;
 	}
 
-	if (m_nStreamedTrack == m_nPlayingTrack) {
+	if (m_nNextTrack == m_nPlayingTrack) {
 		if (SampleManager.IsStreamPlaying(0)) {
 			if (m_nVolumeLatency > 0) m_nVolumeLatency--;
 			else {
@@ -444,25 +448,25 @@ cMusicManager::ServiceFrontEndMode()
 				ChangeMusicMode(MUSICMODE_GAME);
 		}
 	} else {
-		field_398F = true;
-		if (field_3995 || !SampleManager.IsStreamPlaying(0)) {
+		m_bTrackChangeStarted = true;
+		if (m_bVerifyNextTrackStartedToPlay || !SampleManager.IsStreamPlaying(0)) {
 			bRadioStatsRecorded = false;
-			if (SampleManager.IsStreamPlaying(0) || m_nStreamedTrack == NO_TRACK) {
-				m_nPlayingTrack = m_nStreamedTrack;
-				field_3995 = false;
-				field_398F = false;
+			if (SampleManager.IsStreamPlaying(0) || m_nNextTrack == NO_TRACK) {
+				m_nPlayingTrack = m_nNextTrack;
+				m_bVerifyNextTrackStartedToPlay = false;
+				m_bTrackChangeStarted = false;
 			} else {
-				uint32 trackStartPos = (m_nStreamedTrack > STREAMED_SOUND_RADIO_POLICE) ? 0 : GetTrackStartPos(m_nStreamedTrack);
-				if (m_nStreamedTrack != NO_TRACK) {
-					SampleManager.SetStreamedFileLoopFlag(field_3994, 0);
-					SampleManager.StartStreamedFile(m_nStreamedTrack, trackStartPos, 0);
+				uint32 trackStartPos = (m_nNextTrack > STREAMED_SOUND_RADIO_POLICE) ? 0 : GetTrackStartPos(m_nNextTrack);
+				if (m_nNextTrack != NO_TRACK) {
+					SampleManager.SetStreamedFileLoopFlag(m_nNextLoopFlag, 0);
+					SampleManager.StartStreamedFile(m_nNextTrack, trackStartPos, 0);
 					m_nVolumeLatency = 3;
 					m_nCurrentVolume = 0;
 					m_nMaxVolume = 100;
 					SampleManager.SetStreamedVolumeAndPan(m_nCurrentVolume, 63, 0, 0);
-					if (m_nStreamedTrack < STREAMED_SOUND_CITY_AMBIENT)
+					if (m_nNextTrack < STREAMED_SOUND_CITY_AMBIENT)
 						m_nLastTrackServiceTime = CTimer::GetTimeInMillisecondsPauseMode();
-					field_3995 = true;
+					m_bVerifyNextTrackStartedToPlay = true;
 				}
 			}
 		} else {
@@ -483,8 +487,8 @@ cMusicManager::ServiceGameMode()
 {
 	CPed *ped = FindPlayerPed();
 	CVehicle *vehicle = AudioManager.FindVehicleOfPlayer();
-	field_3997 = field_3996;
-	field_3996 = false;
+	m_bRadioStreamReady = m_bGameplayAllowsRadio;
+	m_bGameplayAllowsRadio = false;
 
 	switch (CGame::currArea)
 	{
@@ -495,29 +499,28 @@ cMusicManager::ServiceGameMode()
 	case AREA_BLOOD:
 	case AREA_OVALRING:
 	case AREA_MALIBU_CLUB:
-		field_3996 = false;
+		m_bGameplayAllowsRadio = false;
 		break;
 	default:
 		if (SampleManager.GetMusicVolume()) {
 			if (PlayerInCar())
-				field_3996 = true;
+				m_bGameplayAllowsRadio = true;
 		} else
-			field_3996 = false;
+			m_bGameplayAllowsRadio = false;
 		break;
 	}
 
-	if (!field_3996) {
+	if (!m_bGameplayAllowsRadio) {
 		nFramesSinceCutsceneEnded = -1;
 		gNumRetunePresses = 0;
 		gRetuneCounter = 0;
-		field_2 = false;
+		m_bSetNextStation = false;
 	} else if (ped) {
-		if(!ped->DyingOrDead()) {
+		if(!ped->DyingOrDead() && vehicle) {
 #ifdef GTA_PC
 			if (SampleManager.IsMP3RadioChannelAvailable()
 				&& vehicle->m_nRadioStation < USERTRACK
-				&& ControlsManager.GetIsKeyboardKeyJustDown(rsF9)
-				&& vehicle)
+				&& ControlsManager.GetIsKeyboardKeyJustDown(rsF9))
 			{
 				if (!UsesPoliceRadio(vehicle) && !UsesTaxiRadio(vehicle)) {
 					gNumRetunePresses = 0;
@@ -532,7 +535,7 @@ cMusicManager::ServiceGameMode()
 				}
 			}
 #endif
-			if (CPad::GetPad(0)->ChangeStationJustDown() && vehicle)
+			if (CPad::GetPad(0)->ChangeStationJustDown())
 			{
 				if (!UsesPoliceRadio(vehicle) && !UsesTaxiRadio(vehicle)) {
 					gNumRetunePresses++;
@@ -540,147 +543,183 @@ cMusicManager::ServiceGameMode()
 					RadioStaticCounter = 0;
 				}
 			}
-
+#ifdef RADIO_SCROLL_TO_PREV_STATION
+			else if(CPad::GetPad(0)->GetMouseWheelDownJustDown() || CPad::GetPad(0)->GetMouseWheelUpJustDown()) {
+				if(!UsesPoliceRadio(vehicle) && !UsesTaxiRadio(vehicle)) {
+					int scrollNext = ControlsManager.GetControllerKeyAssociatedWithAction(VEHICLE_CHANGE_RADIO_STATION, MOUSE);
+					int scrollPrev = scrollNext == rsMOUSEWHEELUPBUTTON ? rsMOUSEWHEELDOWNBUTTON
+																		: scrollNext == rsMOUSEWHEELDOWNBUTTON ? rsMOUSEWHEELUPBUTTON : -1;
+
+					if(scrollPrev != -1 && !ControlsManager.IsAnyVehicleActionAssignedToMouseKey(scrollPrev)) {
+						gNumRetunePresses--;
+						gRetuneCounter = 20;
+						RadioStaticCounter = 0;
+						int track = gNumRetunePresses + vehicle->m_nRadioStation;
+						while(track < 0) track += NUM_RADIOS + 1;
+						while(track >= NUM_RADIOS + 1) track -= NUM_RADIOS + 1;
+						if(!DMAudio.IsMP3RadioChannelAvailable() && track == USERTRACK) gNumRetunePresses--;
+					}
+				}
+			}
+#endif
 		}
 	}
 
-	if (field_3999)
+	if (m_bUserResumedGame)
 	{
-		field_3997 = false;
-		field_3999 = false;
+		m_bRadioStreamReady = false;
+		m_bUserResumedGame = false;
 	}
 	if (m_nPlayingTrack == NO_TRACK && m_nFrontendTrack == NO_TRACK)
-		field_3997 = false;
+		m_bRadioStreamReady = false;
 
-	if (field_3996)
+	if (m_bGameplayAllowsRadio)
 	{
-		if (field_3997)
+		if (!m_bRadioStreamReady)
 		{
-			if (m_nAnnouncement < NO_TRACK) {
-				if ((m_bAnnouncementInProgress || m_nFrontendTrack == m_nPlayingTrack) && ServiceAnnouncement()) {
-					if (m_bAnnouncementInProgress) {
-						field_2 = false;
-						gNumRetunePresses = 0;
-						gRetuneCounter = 0;
-						return;
-					}
-					if(m_nAnnouncement == NO_TRACK) {
-						m_nStreamedTrack = NO_TRACK;
-						m_nFrontendTrack = GetCarTuning();
-						field_2 = false;
-						gRetuneCounter = 0;
-						gNumRetunePresses = 0;
-					}
+			if(vehicle == nil) {
+				m_nFrontendTrack = STREAMED_SOUND_RADIO_WAVE; // huh?
+				return;
+			}
+			if(m_bRadioSetByScript) {
+				if(UsesPoliceRadio(vehicle))
+					m_nFrontendTrack = STREAMED_SOUND_RADIO_POLICE;
+				else if(UsesTaxiRadio(vehicle))
+					m_nFrontendTrack = STREAMED_SOUND_RADIO_TAXI;
+				else {
+					m_nFrontendTrack = m_nRadioStationScript;
+					vehicle->m_nRadioStation = m_nRadioStationScript;
 				}
+				if(m_nRadioPosition != -1) {
+					m_aTracks[m_nFrontendTrack].m_nPosition = m_nRadioPosition;
+					m_aTracks[m_nFrontendTrack].m_nLastPosCheckTimer = CTimer::GetTimeInMillisecondsPauseMode();
+				}
+				m_bRadioSetByScript = false;
+				return;
 			}
-			if (!m_bAnnouncementInProgress
-				&& m_nAnnouncement == NO_TRACK
-				&& m_nPlayingTrack == STREAMED_SOUND_RADIO_MP3_PLAYER
-				&& !SampleManager.IsStreamPlaying(0))
-			{
-				SampleManager.StartStreamedFile(STREAMED_SOUND_RADIO_MP3_PLAYER, 0, 0);
+
+			// This starts the radio when you enter the car.
+			m_nFrontendTrack = GetCarTuning();
+			return;
+		}
+		if (m_nAnnouncement < NO_TRACK) {
+			if ((m_bAnnouncementInProgress || m_nFrontendTrack == m_nPlayingTrack) && ServiceAnnouncement()) {
+				if (m_bAnnouncementInProgress) {
+					m_bSetNextStation = false;
+					gNumRetunePresses = 0;
+					gRetuneCounter = 0;
+					return;
+				}
+				if(m_nAnnouncement == NO_TRACK) {
+					m_nNextTrack = NO_TRACK;
+					m_nFrontendTrack = GetCarTuning();
+					m_bSetNextStation = false;
+					gRetuneCounter = 0;
+					gNumRetunePresses = 0;
+				}
 			}
+		}
+		if (!m_bAnnouncementInProgress
+			&& m_nAnnouncement == NO_TRACK
+			&& m_nPlayingTrack == STREAMED_SOUND_RADIO_MP3_PLAYER
+			&& !SampleManager.IsStreamPlaying(0))
+		{
+			SampleManager.StartStreamedFile(STREAMED_SOUND_RADIO_MP3_PLAYER, 0, 0);
+		}
 
-			if (!m_bRadioSetByScript)
+		if (!m_bRadioSetByScript)
+		{
+			// Because when you switch radio back and forth, gNumRetunePresses will be 0 but gRetuneCounter won't.
+#ifdef RADIO_SCROLL_TO_PREV_STATION
+			if(gRetuneCounter != 0) {
+				if(gRetuneCounter > 1)
+					gRetuneCounter--;
+				else if(gRetuneCounter == 1) {
+					m_bSetNextStation = true;
+					gRetuneCounter = 0;
+				}
+			}
+#else
+			if (gNumRetunePresses != 0)
 			{
-				if (gNumRetunePresses != 0)
+				if (--gRetuneCounter == 0)
 				{
-					if (--gRetuneCounter == 0)
-					{
-						field_2 = true;
-						gRetuneCounter = 0;
-					}
+					m_bSetNextStation = true;
+					gRetuneCounter = 0;
 				}
-				if (gRetuneCounter)
-				{
-					int32 station = gNumRetunePresses + vehicle->m_nRadioStation;
-					while (station >= RADIO_OFF) station -= RADIO_OFF;
+			}
+#endif
+			if (gRetuneCounter)
+			{
+				int32 station = gNumRetunePresses + vehicle->m_nRadioStation;
+#ifdef RADIO_SCROLL_TO_PREV_STATION
+				while (station < 0) station += NUM_RADIOS + 1;
+#endif
+				while (station >= NUM_RADIOS + 1) station -= NUM_RADIOS + 1;
 
-					if (!DMAudio.IsMP3RadioChannelAvailable() && station == USERTRACK)
-					{
-						++gNumRetunePresses;
-						station = NUM_RADIOS;
-					}
-					if (station == NUM_RADIOS)
-					{
-						if (gRetuneCounter == NUM_RADIOS + 9)
-						{
-							AudioManager.PlayOneShot(AudioManager.m_nFrontEndEntity, SOUND_FRONTEND_NO_RADIO, 0.0f);
-							RadioStaticCounter = 5;
-						}
-					}
-					else
+				// Scrolling back won't hit here, so increasing isn't problem
+				if (!DMAudio.IsMP3RadioChannelAvailable() && station == USERTRACK)
+				{
+					++gNumRetunePresses;
+					station = RADIO_OFF;
+				}
+				if (station == RADIO_OFF)
+				{
+					if (gRetuneCounter == 19) // One less then what switching radio sets, so runs right after turning off radio
 					{
-						if (station == WILDSTYLE && gRetuneCounter == NUM_RADIOS + 9)
-							AudioManager.PlayOneShot(AudioManager.m_nFrontEndEntity, SOUND_FRONTEND_RADIO_CHANGE, 0.0f);
-						AudioManager.DoPoliceRadioCrackle();
+						AudioManager.PlayOneShot(AudioManager.m_nFrontEndEntity, SOUND_FRONTEND_RADIO_TURN_OFF, 0.0f);
+						RadioStaticCounter = 5;
 					}
 				}
-				if (RadioStaticCounter < 2 && CTimer::GetTimeInMilliseconds() > RadioStaticTimer + 800)
+				else
 				{
-					AudioManager.PlayOneShot(AudioManager.m_nFrontEndEntity, SOUND_RADIO_CHANGE, 0.0f);
-					RadioStaticCounter++;
-					RadioStaticTimer = CTimer::GetTimeInMilliseconds();
+#ifdef RADIO_SCROLL_TO_PREV_STATION
+					if (vehicle->m_nRadioStation == RADIO_OFF && gRetuneCounter == 19) // Right after turning on the radio
+#else
+					if (station == 0 && gRetuneCounter == 19) // Right after turning on the radio
+#endif
+						AudioManager.PlayOneShot(AudioManager.m_nFrontEndEntity, SOUND_FRONTEND_RADIO_TURN_ON, 0.0f);
+					AudioManager.DoPoliceRadioCrackle();
 				}
-				if (field_2)
-					m_nFrontendTrack = GetNextCarTuning();
-				if (m_nFrontendTrack >= STREAMED_SOUND_CITY_AMBIENT && m_nFrontendTrack <= STREAMED_SOUND_AMBSIL_AMBIENT)
-					SetUpCorrectAmbienceTrack();
-				ServiceTrack(vehicle, ped);
-				if (field_2)
-					field_2 = false;
-				return;
 			}
-			if (UsesPoliceRadio(vehicle))
-				m_nFrontendTrack = STREAMED_SOUND_RADIO_POLICE;
-			else if (UsesTaxiRadio(vehicle))
-				m_nFrontendTrack = STREAMED_SOUND_RADIO_TAXI;
-			else {
-				m_nFrontendTrack = m_nRadioStation;
-				vehicle->m_nRadioStation = m_nRadioStation;
-			}
-
-			if (m_nRadioPosition != -1) {
-				m_aTracks[m_nFrontendTrack].m_nPosition = m_nRadioPosition;
-				m_aTracks[m_nFrontendTrack].m_nLastPosCheckTimer = CTimer::GetTimeInMillisecondsPauseMode();
+			if (RadioStaticCounter < 2 && CTimer::GetTimeInMilliseconds() > RadioStaticTimer + 800)
+			{
+				AudioManager.PlayOneShot(AudioManager.m_nFrontEndEntity, SOUND_RADIO_CHANGE, 0.0f);
+				RadioStaticCounter++;
+				RadioStaticTimer = CTimer::GetTimeInMilliseconds();
 			}
-
-			gRetuneCounter = 0;
-			gNumRetunePresses = 0;
-			field_2 = false;
-			m_bRadioSetByScript = false;
+			if (m_bSetNextStation)
+				m_nFrontendTrack = GetNextCarTuning();
 			if (m_nFrontendTrack >= STREAMED_SOUND_CITY_AMBIENT && m_nFrontendTrack <= STREAMED_SOUND_AMBSIL_AMBIENT)
 				SetUpCorrectAmbienceTrack();
 			ServiceTrack(vehicle, ped);
-			if (field_2)
-				field_2 = false;
+			if (m_bSetNextStation)
+				m_bSetNextStation = false;
 			return;
 		}
-		if (vehicle == nil)
-		{
-			m_nFrontendTrack = STREAMED_SOUND_RADIO_WAVE; // huh?
-			return;
+		if (UsesPoliceRadio(vehicle))
+			m_nFrontendTrack = STREAMED_SOUND_RADIO_POLICE;
+		else if (UsesTaxiRadio(vehicle))
+			m_nFrontendTrack = STREAMED_SOUND_RADIO_TAXI;
+		else {
+			m_nFrontendTrack = m_nRadioStationScript;
+			vehicle->m_nRadioStation = m_nRadioStationScript;
 		}
-		if (m_bRadioSetByScript)
-		{
-			if (UsesPoliceRadio(vehicle))
-				m_nFrontendTrack = STREAMED_SOUND_RADIO_POLICE;
-			else if (UsesTaxiRadio(vehicle))
-				m_nFrontendTrack = STREAMED_SOUND_RADIO_TAXI;
-			else {
-				m_nFrontendTrack = m_nRadioStation;
-				vehicle->m_nRadioStation = m_nRadioStation;
-			}
-			if (m_nRadioPosition != -1)
-			{
-				m_aTracks[m_nFrontendTrack].m_nPosition = m_nRadioPosition;
-				m_aTracks[m_nFrontendTrack].m_nLastPosCheckTimer = CTimer::GetTimeInMillisecondsPauseMode();
-			}
-			m_bRadioSetByScript = false;
-			return;
+
+		if (m_nRadioPosition != -1) {
+			m_aTracks[m_nFrontendTrack].m_nPosition = m_nRadioPosition;
+			m_aTracks[m_nFrontendTrack].m_nLastPosCheckTimer = CTimer::GetTimeInMillisecondsPauseMode();
 		}
 
-		m_nFrontendTrack = GetCarTuning();
+		gRetuneCounter = 0;
+		gNumRetunePresses = 0;
+		m_bSetNextStation = false;
+		m_bRadioSetByScript = false;
+		if (m_nFrontendTrack >= STREAMED_SOUND_CITY_AMBIENT && m_nFrontendTrack <= STREAMED_SOUND_AMBSIL_AMBIENT)
+			SetUpCorrectAmbienceTrack();
+		ServiceTrack(vehicle, ped);
+		if (m_bSetNextStation)
+			m_bSetNextStation = false;
 		return;
 	}
 
@@ -692,7 +731,7 @@ cMusicManager::ServiceGameMode()
 		g_bAnnouncementReadPosAlready = false;
 		m_nAnnouncement = NO_TRACK;
 		m_bAnnouncementInProgress = false;
-		m_nStreamedTrack = NO_TRACK;
+		m_nNextTrack = NO_TRACK;
 		m_nFrontendTrack = NO_TRACK;
 		m_nPlayingTrack = NO_TRACK;
 	}
@@ -834,7 +873,7 @@ cMusicManager::ServiceAnnouncement()
 {
 	if (m_bAnnouncementInProgress) {
 		if (SampleManager.IsStreamPlaying(0))
-			m_nPlayingTrack = m_nStreamedTrack;
+			m_nPlayingTrack = m_nNextTrack;
 		else if (m_nPlayingTrack != NO_TRACK) {
 			m_nAnnouncement = NO_TRACK;
 			m_bAnnouncementInProgress = false;
@@ -852,9 +891,9 @@ cMusicManager::ServiceAnnouncement()
 	} else {
 		g_bAnnouncementReadPosAlready = false;
 		m_nPlayingTrack = NO_TRACK;
-		m_nStreamedTrack = m_nAnnouncement;
-		SampleManager.SetStreamedFileLoopFlag(0, false);
-		SampleManager.StartStreamedFile(m_nStreamedTrack, 0, 0);
+		m_nNextTrack = m_nAnnouncement;
+		SampleManager.SetStreamedFileLoopFlag(0, 0);
+		SampleManager.StartStreamedFile(m_nNextTrack, 0, 0);
 		SampleManager.SetStreamedVolumeAndPan(MAX_VOLUME, 63, 0, 0);
 		m_bAnnouncementInProgress = true;
 	}
@@ -868,9 +907,9 @@ cMusicManager::ServiceTrack(CVehicle *veh, CPed *ped)
 	static bool bRadioStatsRecorded = false;
 	static bool bRadioStatsRecorded2 = false;
 	uint8 volume;
-	if (!field_398F)
-		m_nStreamedTrack = m_nFrontendTrack;
-	if (gRetuneCounter != 0 || field_2) {
+	if (!m_bTrackChangeStarted)
+		m_nNextTrack = m_nFrontendTrack;
+	if (gRetuneCounter != 0 || m_bSetNextStation) {
 		if (SampleManager.IsStreamPlaying(0)) {
 			if (m_nPlayingTrack != NO_TRACK && !bRadioStatsRecorded) {
 				m_aTracks[m_nPlayingTrack].m_nPosition = SampleManager.GetStreamedFilePosition(0);
@@ -889,28 +928,35 @@ cMusicManager::ServiceTrack(CVehicle *veh, CPed *ped)
 		m_nPlayingTrack = NO_TRACK;
 	}
 
-	if (m_nStreamedTrack != m_nPlayingTrack)
+	if (m_nNextTrack != m_nPlayingTrack)
 	{
-		field_398F = true;
+		m_bTrackChangeStarted = true;
 		SampleManager.SetStreamedVolumeAndPan(0, 63, 0, 0);
 		if (!(AudioManager.m_FrameCounter & 1)) {
-			if (field_3995 || !SampleManager.IsStreamPlaying(0)) {
+			if (m_bVerifyNextTrackStartedToPlay || !SampleManager.IsStreamPlaying(0)) {
 				bRadioStatsRecorded2 = false;
 				if (SampleManager.IsStreamPlaying(0)) {
-					m_nPlayingTrack = m_nStreamedTrack;
-					field_3995 = false;
-					field_398F = false;
+					m_nPlayingTrack = m_nNextTrack;
+					m_bVerifyNextTrackStartedToPlay = false;
+					m_bTrackChangeStarted = false;
 					if (veh) {
-						if (veh->m_nRadioStation < STREAMED_SOUND_CITY_AMBIENT || veh->m_nRadioStation > STREAMED_SOUND_AMBSIL_AMBIENT)
+#ifdef FIX_BUGS
+						if (m_nPlayingTrack >= STREAMED_SOUND_CITY_AMBIENT && m_nPlayingTrack <= STREAMED_SOUND_AMBSIL_AMBIENT)
+							veh->m_nRadioStation = RADIO_OFF;
+						else if (m_nPlayingTrack < STREAMED_SOUND_CITY_AMBIENT)
 							veh->m_nRadioStation = m_nPlayingTrack;
+#else
+						if (veh->m_nRadioStation >= STREAMED_SOUND_CITY_AMBIENT && veh->m_nRadioStation <= STREAMED_SOUND_AMBSIL_AMBIENT)
+							veh->m_nRadioStation = RADIO_OFF;
 						else
-							veh->m_nRadioStation = STREAMED_SOUND_CITY_AMBIENT;
+							veh->m_nRadioStation = m_nPlayingTrack;
+#endif
 					}
 				} else {
-					uint32 pos = GetTrackStartPos(m_nStreamedTrack);
-					if (m_nStreamedTrack != NO_TRACK) {
+					uint32 pos = GetTrackStartPos(m_nNextTrack);
+					if (m_nNextTrack != NO_TRACK) {
 						SampleManager.SetStreamedFileLoopFlag(1, 0);
-						SampleManager.StartStreamedFile(m_nStreamedTrack, pos, 0);
+						SampleManager.StartStreamedFile(m_nNextTrack, pos, 0);
 						if (m_nFrontendTrack < STREAMED_SOUND_CITY_AMBIENT || m_nFrontendTrack > STREAMED_SOUND_AMBSIL_AMBIENT)
 						{
 							m_nVolumeLatency = 10;
@@ -923,9 +969,9 @@ cMusicManager::ServiceTrack(CVehicle *veh, CPed *ped)
 							ComputeAmbienceVol(true, volume);
 							SampleManager.SetStreamedVolumeAndPan(volume, 63, 1, 0);
 						}
-						if (m_nStreamedTrack < STREAMED_SOUND_CITY_AMBIENT)
+						if (m_nNextTrack < STREAMED_SOUND_CITY_AMBIENT)
 							m_nLastTrackServiceTime = CTimer::GetTimeInMillisecondsPauseMode();
-						field_3995 = true;
+						m_bVerifyNextTrackStartedToPlay = true;
 					}
 				}
 			} else {
@@ -939,8 +985,8 @@ cMusicManager::ServiceTrack(CVehicle *veh, CPed *ped)
 					RecordRadioStats();
 					if (m_nPlayingTrack >= STREAMED_SOUND_HAVANA_CITY_AMBIENT && m_nPlayingTrack <= STREAMED_SOUND_HAVANA_BEACH_AMBIENT)
 					{
-						if (m_nStreamedTrack >= STREAMED_SOUND_HAVANA_CITY_AMBIENT && m_nStreamedTrack <= STREAMED_SOUND_HAVANA_BEACH_AMBIENT)
-							AudioManager.PlayOneShot(AudioManager.m_nFrontEndEntity, SOUND_FRONTEND_RADIO_CHANGE_2, 0.0);
+						if (m_nNextTrack >= STREAMED_SOUND_HAVANA_CITY_AMBIENT && m_nNextTrack <= STREAMED_SOUND_HAVANA_BEACH_AMBIENT)
+							AudioManager.PlayOneShot(AudioManager.m_nFrontEndEntity, SOUND_FRONTEND_HURRICANE, 0.0);
 					}
 				}
 				SampleManager.SetStreamedVolumeAndPan(0, 63, 0, 0);
@@ -1050,14 +1096,14 @@ cMusicManager::StopCutSceneMusic(void)
 }
 
 void
-cMusicManager::PlayFrontEndTrack(uint32 track, uint8 bPlayInFrontend)
+cMusicManager::PlayFrontEndTrack(uint32 track, uint8 loopFlag)
 {
 	if (IsInitialised() && !m_bDisabled && track < TOTAL_STREAMED_SOUNDS && (m_nUpcomingMusicMode == MUSICMODE_FRONTEND || m_nMusicMode == MUSICMODE_FRONTEND))
 	{
 		m_nFrontendTrack = track;
-		field_398E = bPlayInFrontend;
+		m_FrontendLoopFlag = loopFlag;
 		if (m_nMusicMode != MUSICMODE_FRONTEND)
-			field_399C = true;
+			m_bEarlyFrontendTrack = true;
 	}
 }
 
@@ -1083,10 +1129,18 @@ cMusicManager::GetNextCarTuning()
 	if (UsesPoliceRadio(veh)) return STREAMED_SOUND_RADIO_POLICE;
 	if (UsesTaxiRadio(veh)) return STREAMED_SOUND_RADIO_TAXI;
 	if (gNumRetunePresses != 0) {
+#ifdef RADIO_SCROLL_TO_PREV_STATION
+		// m_nRadioStation is unsigned, so...
+		int station = veh->m_nRadioStation + gNumRetunePresses;
+		while(station < 0) station += NUM_RADIOS + 1;
+		while(station >= NUM_RADIOS + 1) station -= NUM_RADIOS + 1;
+		veh->m_nRadioStation = station;
+#else
 		veh->m_nRadioStation += gNumRetunePresses;
-		while (veh->m_nRadioStation >= RADIO_OFF)
-			veh->m_nRadioStation -= RADIO_OFF;
-		DMAudio.IsMP3RadioChannelAvailable(); // woof, just call and do nothing =P
+		while(veh->m_nRadioStation >= NUM_RADIOS + 1)
+			veh->m_nRadioStation -= NUM_RADIOS + 1;
+#endif
+		DMAudio.IsMP3RadioChannelAvailable(); // woof, just call and do nothing =P they manipulate gNumRetunePresses on DisplayRadioStationName in this case
 		gNumRetunePresses = 0;
 	}
 	return veh->m_nRadioStation;
@@ -1129,7 +1183,7 @@ cMusicManager::GetTrackStartPos(uint32 track)
 uint32
 cMusicManager::GetRadioPosition(uint32 station)
 {
-	if (station < STREAMED_SOUND_CITY_AMBIENT)
+	if (station < NUM_RADIOS)
 		return GetTrackStartPos(station);
 	return 0;
 }
@@ -1158,7 +1212,7 @@ cMusicManager::SetMalibuClubTrackPos(uint8 scriptObject)
 {
 	if (!IsInitialised())
 		m_aTracks[STREAMED_SOUND_MALIBU_AMBIENT].m_nPosition = 8640;
-	if (m_nStreamedTrack != STREAMED_SOUND_MALIBU_AMBIENT && m_nPlayingTrack != STREAMED_SOUND_MALIBU_AMBIENT) {
+	if (m_nNextTrack != STREAMED_SOUND_MALIBU_AMBIENT && m_nPlayingTrack != STREAMED_SOUND_MALIBU_AMBIENT) {
 		switch (scriptObject)
 		{
 		case SCRIPT_SOUND_NEW_BUILDING_MALIBU_1:
@@ -1180,7 +1234,7 @@ cMusicManager::SetStripClubTrackPos(uint8 scriptObject)
 {
 	if (!IsInitialised())
 		m_aTracks[STREAMED_SOUND_STRIPCLUB_AMBIENT].m_nPosition = 0;
-	if (m_nStreamedTrack != STREAMED_SOUND_STRIPCLUB_AMBIENT && m_nPlayingTrack != STREAMED_SOUND_STRIPCLUB_AMBIENT)
+	if (m_nNextTrack != STREAMED_SOUND_STRIPCLUB_AMBIENT && m_nPlayingTrack != STREAMED_SOUND_STRIPCLUB_AMBIENT)
 	{
 		switch (scriptObject)
 		{
@@ -1201,7 +1255,7 @@ cMusicManager::SetStripClubTrackPos(uint8 scriptObject)
 void
 cMusicManager::DisplayRadioStationName()
 {
-	int8 gStreamedSound;
+	uint8 gStreamedSound;
 	static wchar *pCurrentStation = nil;
 	static uint8 cDisplay = 0;
 
@@ -1211,20 +1265,25 @@ cMusicManager::DisplayRadioStationName()
 
 		if (vehicle)
 		{
-			uint8 track;
+			int8 track;
 			gStreamedSound = vehicle->m_nRadioStation;
 			if (gStreamedSound >= STREAMED_SOUND_CITY_AMBIENT && gStreamedSound <= STREAMED_SOUND_AMBSIL_AMBIENT)
-				gStreamedSound = STREAMED_SOUND_CITY_AMBIENT;
+				gStreamedSound = RADIO_OFF;
 			if (gNumRetunePresses != 0)
 			{
 				track = gNumRetunePresses + gStreamedSound;
-				while (track >= RADIO_OFF) track -= RADIO_OFF;
+#ifdef RADIO_SCROLL_TO_PREV_STATION
+				while (track < 0) track += NUM_RADIOS + 1;
+#endif
+				while (track >= NUM_RADIOS + 1) track -= NUM_RADIOS + 1;
+
+				// We already handle this condition while scrolling back, on key press. No need to change this.
 				if (!DMAudio.IsMP3RadioChannelAvailable() && track == USERTRACK)
 					gNumRetunePresses++;
 			}
 			else
 #ifdef FIX_BUGS
-				track = m_nFrontendTrack == NO_TRACK ? POLICE_RADIO : m_nFrontendTrack;
+				track = GetCarTuning(); // gStreamedSound or veh->m_nRadioStation would also work, but these don't cover police/taxi radios
 #else
 				track = m_nFrontendTrack;
 #endif
@@ -1244,6 +1303,18 @@ cMusicManager::DisplayRadioStationName()
 				if (!SampleManager.IsMP3RadioChannelAvailable())
 					return;
 				string = TheText.Get("FEA_MP3"); break;
+#ifdef RADIO_OFF_TEXT
+			case RADIO_OFF: {
+				extern wchar WideErrorString[];
+
+				string = TheText.Get("FEA_FMN");
+				if (string == WideErrorString) {
+					pCurrentStation = nil;
+					return;
+				}
+				break;
+			}
+#endif
 			default: return;
 			};
 
@@ -1275,6 +1346,11 @@ cMusicManager::DisplayRadioStationName()
 			CFont::DrawFonts();
 		}
 	}
+	// Always show station text after entering car. Same behaviour as III and SA.
+#ifdef FIX_BUGS
+	else
+		pCurrentStation = nil;
+#endif
 }
 
 bool