5 files changed, 150 insertions, 89 deletions

diff --git a/src/audio/AudioLogic.cpp b/src/audio/AudioLogic.cpp
index ca395136..94ca67de 100644
--- a/src/audio/AudioLogic.cpp
+++ b/src/audio/AudioLogic.cpp
@@ -128,31 +128,31 @@ cAudioManager::PostInitialiseGameSpecificSetup()
 {
 	m_nFireAudioEntity = CreateEntity(AUDIOTYPE_FIRE, &gFireManager);
 	if (m_nFireAudioEntity >= 0)
-		SetEntityStatus(m_nFireAudioEntity, 1);
+		SetEntityStatus(m_nFireAudioEntity, true);
 
 	m_nCollisionEntity = CreateEntity(AUDIOTYPE_COLLISION, (void *)1);
 	if (m_nCollisionEntity >= 0)
-		SetEntityStatus(m_nCollisionEntity, 1);
+		SetEntityStatus(m_nCollisionEntity, true);
 
 	m_nFrontEndEntity = CreateEntity(AUDIOTYPE_FRONTEND, (void *)1);
 	if (m_nFrontEndEntity >= 0)
-		SetEntityStatus(m_nFrontEndEntity, 1);
+		SetEntityStatus(m_nFrontEndEntity, true);
 
 	m_nProjectileEntity = CreateEntity(AUDIOTYPE_PROJECTILE, (void *)1);
 	if (m_nProjectileEntity >= 0)
-		SetEntityStatus(m_nProjectileEntity, 1);
+		SetEntityStatus(m_nProjectileEntity, true);
 
 	m_nWaterCannonEntity = CreateEntity(AUDIOTYPE_WATERCANNON, (void *)1);
 	if (m_nWaterCannonEntity >= 0)
-		SetEntityStatus(m_nWaterCannonEntity, 1);
+		SetEntityStatus(m_nWaterCannonEntity, true);
 
 	m_nPoliceChannelEntity = CreateEntity(AUDIOTYPE_POLICERADIO, (void *)1);
 	if (m_nPoliceChannelEntity >= 0)
-		SetEntityStatus(m_nPoliceChannelEntity, 1);
+		SetEntityStatus(m_nPoliceChannelEntity, true);
 
 	m_nBridgeEntity = CreateEntity(AUDIOTYPE_BRIDGE, (void *)1);
 	if (m_nBridgeEntity >= 0)
-		SetEntityStatus(m_nBridgeEntity, 1);
+		SetEntityStatus(m_nBridgeEntity, true);
 
 	m_sMissionAudio.m_nSampleIndex = NO_SAMPLE;
 	m_sMissionAudio.m_nLoadingStatus = LOADING_STATUS_NOT_LOADED;
@@ -240,7 +240,7 @@ cAudioManager::ProcessReverb() const
 		     ;
 		     i++) {
 			if (m_asActiveSamples[i].m_bReverbFlag)
-				SampleManager.SetChannelReverbFlag(i, 1);
+				SampleManager.SetChannelReverbFlag(i, true);
 		}
 	}
 }
@@ -277,8 +277,7 @@ cAudioManager::ProcessSpecial()
 		}
 		CPlayerPed *playerPed = FindPlayerPed();
 		if (playerPed) {
-			const PedState &state = playerPed->m_nPedState;
-			if (state != PED_ENTER_CAR && state != PED_STEAL_CAR && !playerPed->bInVehicle)
+			if(playerPed->EnteringCar() && !playerPed->bInVehicle)
 				SampleManager.StopChannel(m_nActiveSamples);
 		}
 	}
@@ -287,7 +286,7 @@ cAudioManager::ProcessSpecial()
 void
 cAudioManager::ProcessEntity(int32 id)
 {
-	if (m_asAudioEntities[id].m_nStatus) {
+	if (m_asAudioEntities[id].m_bStatus) {
 		m_sQueueSample.m_nEntityIndex = id;
 		switch (m_asAudioEntities[id].m_nType) {
 		case AUDIOTYPE_PHYSICAL:
@@ -580,14 +579,13 @@ cAudioManager::ProcessVehicle(CVehicle *veh)
 	m_sQueueSample.m_vecPos = veh->GetPosition();
 
 	params.m_bDistanceCalculated = false;
-	params.m_fDistance = GetDistanceSquared(m_sQueueSample.m_vecPos);
 	params.m_pVehicle = veh;
-	params.m_pTransmission = nil;
-	params.m_nIndex = 0;
-	params.m_fVelocityChange = 0.0f;
+	params.m_fDistance = GetDistanceSquared(m_sQueueSample.m_vecPos);
 
 	if (handling != nil)
 		params.m_pTransmission = &handling->Transmission;
+	else
+		params.m_pTransmission = nil;
 
 	params.m_nIndex = veh->GetModelIndex() - MI_FIRST_VEHICLE;
 	if (params.m_pVehicle->GetStatus() == STATUS_SIMPLE)
@@ -1904,7 +1902,6 @@ cAudioManager::ProcessVehicleOneShots(cVehicleParams& params)
 	float vol;
 	bool noReflections;
 	float maxDist;
-	cPedParams pedParams;
 
 	static uint8 WaveIndex = 41;
 	static uint8 GunIndex = 53;
@@ -2243,21 +2240,21 @@ cAudioManager::ProcessVehicleOneShots(cVehicleParams& params)
 			break;
 		}
 		case SOUND_PED_HELI_PLAYER_FOUND:
-			pedParams.m_pPed = nil;
-			pedParams.m_bDistanceCalculated = false;
-			pedParams.m_fDistance = 0.0f;
+		{
+			cPedParams pedParams;
 			pedParams.m_bDistanceCalculated = params.m_bDistanceCalculated;
 			pedParams.m_fDistance = params.m_fDistance;
 			SetupPedComments(pedParams, SOUND_PED_HELI_PLAYER_FOUND);
 			continue;
+		}
 		case SOUND_PED_BODYCAST_HIT:
-			pedParams.m_pPed = nil;
-			pedParams.m_bDistanceCalculated = false;
-			pedParams.m_fDistance = 0.0f;
+		{
+			cPedParams pedParams;
 			pedParams.m_bDistanceCalculated = params.m_bDistanceCalculated;
 			pedParams.m_fDistance = params.m_fDistance;
 			SetupPedComments(pedParams, SOUND_PED_BODYCAST_HIT);
 			continue;
+		}
 		case SOUND_WATER_FALL: {
 			const float SOUND_INTENSITY = 40.0f;
 			m_sQueueSample.m_nSampleIndex = SFX_SPLASH_1;
@@ -2402,20 +2399,20 @@ cAudioManager::ProcessBoatEngine(cVehicleParams& params)
 	CBoat *boat;
 	float padRelativeAccerate;
 	float gasPedal;
-	int32 padAccelerate;
+	float padAccelerate;
 	uint8 emittingVol;
 	float oneShotVol;
 
 	static uint16 LastAccel = 0;
 	static uint8 LastVol = 0;
 
-	static const int intensity = 50;
+	static const float intensity = 50.0f;
 
 	if (params.m_fDistance < SQR(intensity)) {
 		boat = (CBoat *)params.m_pVehicle;
 		if (params.m_nIndex == REEFER) {
 			CalculateDistance(params.m_bDistanceCalculated, params.m_fDistance);
-			m_sQueueSample.m_nVolume = ComputeVolume(80, 50.f, m_sQueueSample.m_fDistance);
+			m_sQueueSample.m_nVolume = ComputeVolume(80, intensity, m_sQueueSample.m_fDistance);
 			if (m_sQueueSample.m_nVolume != 0) {
 				m_sQueueSample.m_nCounter = 39;
 				m_sQueueSample.m_nSampleIndex = SFX_FISHING_BOAT_IDLE;
@@ -2438,10 +2435,10 @@ cAudioManager::ProcessBoatEngine(cVehicleParams& params)
 			}
 			if (FindPlayerVehicle() == params.m_pVehicle) {
 				padAccelerate = Max(Pads[0].GetAccelerate(), Pads[0].GetBrake());
-				padRelativeAccerate = padAccelerate / 255;
+				padRelativeAccerate = padAccelerate / 255.0f;
 				emittingVol = (100.f * padRelativeAccerate) + 15;
 				m_sQueueSample.m_nFrequency = (3000.f * padRelativeAccerate) + 6000;
-				if (!boat->m_bIsAnchored)
+				if (!boat->bPropellerInWater)
 					m_sQueueSample.m_nFrequency = 11 * m_sQueueSample.m_nFrequency / 10;
 			} else {
 				gasPedal = Abs(boat->m_fGasPedal);
@@ -2451,11 +2448,11 @@ cAudioManager::ProcessBoatEngine(cVehicleParams& params)
 				} else {
 					emittingVol = (100.f * gasPedal) + 15;
 					m_sQueueSample.m_nFrequency = (3000.f * gasPedal) + 6000;
-					if (!boat->m_bIsAnchored)
+					if (!boat->bPropellerInWater)
 						m_sQueueSample.m_nFrequency = 11 * m_sQueueSample.m_nFrequency / 10;
 				}
 			}
-			m_sQueueSample.m_nVolume = ComputeVolume(emittingVol, 50.f, m_sQueueSample.m_fDistance);
+			m_sQueueSample.m_nVolume = ComputeVolume(emittingVol, intensity, m_sQueueSample.m_fDistance);
 			if (!m_sQueueSample.m_nVolume)
 				return true;
 			m_sQueueSample.m_nCounter = 40;
@@ -2513,7 +2510,7 @@ cAudioManager::ProcessBoatEngine(cVehicleParams& params)
 				}
 			}
 			CalculateDistance(params.m_bDistanceCalculated, params.m_fDistance);
-			m_sQueueSample.m_nVolume = ComputeVolume(emittingVol, 50.f, m_sQueueSample.m_fDistance);
+			m_sQueueSample.m_nVolume = ComputeVolume(emittingVol, intensity, m_sQueueSample.m_fDistance);
 			if (!m_sQueueSample.m_nVolume)
 				return true;
 			m_sQueueSample.m_nFrequency += (m_sQueueSample.m_nEntityIndex * 65536) % 1000;
@@ -2955,13 +2952,9 @@ cAudioManager::ProcessPed(CPhysical *ped)
 {
 	cPedParams params;
 
-	params.m_pPed = nil;
-	params.m_bDistanceCalculated = false;
-	params.m_fDistance = 0.0f;
-
 	m_sQueueSample.m_vecPos = ped->GetPosition();
 
-	// params.m_bDistanceCalculated = false;
+	params.m_bDistanceCalculated = false;
 	params.m_pPed = (CPed *)ped;
 	params.m_fDistance = GetDistanceSquared(m_sQueueSample.m_vecPos);
 	if (ped->GetModelIndex() == MI_FATMALE02)
@@ -6363,26 +6356,25 @@ cAudioManager::ProcessOneShotScriptObject(uint8 sound)
 	uint8 emittingVolume;
 	float distSquared;
 
-	cPedParams male;
-	cPedParams female;
-
 	static uint8 iSound = 0;
 
 	switch (sound) {
 	case SCRIPT_SOUND_INJURED_PED_MALE_OUCH_S:
 	case SCRIPT_SOUND_INJURED_PED_MALE_OUCH_L:
-		male.m_pPed = nil;
-		male.m_bDistanceCalculated = false;
-		male.m_fDistance = GetDistanceSquared(m_sQueueSample.m_vecPos);
-		SetupPedComments(male, SOUND_INJURED_PED_MALE_OUCH);
+	{
+		cPedParams pedParams;
+		pedParams.m_fDistance = GetDistanceSquared(m_sQueueSample.m_vecPos);
+		SetupPedComments(pedParams, SOUND_INJURED_PED_MALE_OUCH);
 		return;
+	}
 	case SCRIPT_SOUND_INJURED_PED_FEMALE_OUCH_S:
 	case SCRIPT_SOUND_INJURED_PED_FEMALE_OUCH_L:
-		female.m_pPed = nil;
-		female.m_bDistanceCalculated = false;
-		female.m_fDistance = GetDistanceSquared(m_sQueueSample.m_vecPos);
-		SetupPedComments(female, SOUND_INJURED_PED_FEMALE);
+	{
+		cPedParams pedParams;
+		pedParams.m_fDistance = GetDistanceSquared(m_sQueueSample.m_vecPos);
+		SetupPedComments(pedParams, SOUND_INJURED_PED_FEMALE);
 		return;
+	}
 	case SCRIPT_SOUND_GATE_START_CLUNK:
 	case SCRIPT_SOUND_GATE_STOP_CLUNK:
 		m_sQueueSample.m_fSoundIntensity = 40.0f;
@@ -6537,36 +6529,20 @@ cAudioManager::ProcessOneShotScriptObject(uint8 sound)
 				m_sQueueSample.m_nSampleIndex = SFX_BULLET_SHELL_HIT_GROUND_2;
 				m_sQueueSample.m_nFrequency = RandomDisplacement(500) + 11000;
 				m_sQueueSample.m_nReleasingVolumeModificator = 18;
-				m_sQueueSample.m_fSoundIntensity = 20.0f;
-				m_sQueueSample.m_nBankIndex = SFX_BANK_0;
-				m_sQueueSample.m_fSpeedMultiplier = 0.0f;
-				m_sQueueSample.m_bIs2D = false;
-				emittingVolume = m_anRandomTable[2] % 20 + 30;
-				distSquared = GetDistanceSquared(m_sQueueSample.m_vecPos);
-				if (distSquared < SQR(m_sQueueSample.m_fSoundIntensity)) {
-					m_sQueueSample.m_fDistance = Sqrt(distSquared);
-					m_sQueueSample.m_nVolume = ComputeVolume(emittingVolume, m_sQueueSample.m_fSoundIntensity, m_sQueueSample.m_fDistance);
-					if (m_sQueueSample.m_nVolume != 0) {
-						m_sQueueSample.m_nCounter = iSound++;
-						m_sQueueSample.m_nLoopCount = 1;
-						m_sQueueSample.m_bReleasingSoundFlag = true;
-						m_sQueueSample.m_nEmittingVolume = emittingVolume;
-						m_sQueueSample.m_nLoopStart = 0;
-						m_sQueueSample.m_nLoopEnd = -1;
-						m_sQueueSample.m_bReverbFlag = true;
-						AddSampleToRequestedQueue();
-					}
-				}
-				return;
+				break;
 			case SURFACE_WATER:
 				return;
 			default:
+				m_sQueueSample.m_nSampleIndex = SFX_BULLET_SHELL_HIT_GROUND_1;
+				m_sQueueSample.m_nFrequency = RandomDisplacement(750) + 18000;
+				m_sQueueSample.m_nReleasingVolumeModificator = 15;
 				break;
 			}
+		} else {
+			m_sQueueSample.m_nSampleIndex = SFX_BULLET_SHELL_HIT_GROUND_1;
+			m_sQueueSample.m_nFrequency = RandomDisplacement(750) + 18000;
+			m_sQueueSample.m_nReleasingVolumeModificator = 15;
 		}
-		m_sQueueSample.m_nSampleIndex = SFX_BULLET_SHELL_HIT_GROUND_1;
-		m_sQueueSample.m_nFrequency = RandomDisplacement(750) + 18000;
-		m_sQueueSample.m_nReleasingVolumeModificator = 15;
 		m_sQueueSample.m_fSoundIntensity = 20.0f;
 		m_sQueueSample.m_nBankIndex = SFX_BANK_0;
 		m_sQueueSample.m_fSpeedMultiplier = 0.0f;
@@ -7715,7 +7691,6 @@ cAudioManager::ProcessPoliceCellBeatingScriptObject(uint8 sound)
 	int32 sampleIndex;
 	uint8 emittingVol;
 	float distSquared;
-	cPedParams params;
 
 	static uint8 iSound = 0;
 
@@ -7756,9 +7731,9 @@ cAudioManager::ProcessPoliceCellBeatingScriptObject(uint8 sound)
 				m_sQueueSample.m_bReverbFlag = true;
 				m_sQueueSample.m_bRequireReflection = false;
 				AddSampleToRequestedQueue();
+				cPedParams params;
 				params.m_bDistanceCalculated = true;
 				params.m_fDistance = distSquared;
-				params.m_pPed = nil;
 				SetupPedComments(params, SOUND_INJURED_PED_MALE_PRISON);
 			}
 			gCellNextTime = time + 500 + m_anRandomTable[3] % 1500;
diff --git a/src/audio/AudioManager.cpp b/src/audio/AudioManager.cpp
index 947bda40..868f1b65 100644
--- a/src/audio/AudioManager.cpp
+++ b/src/audio/AudioManager.cpp
@@ -128,7 +128,7 @@ cAudioManager::CreateEntity(eAudioType type, void *entity)
 	for (uint32 i = 0; i < ARRAY_SIZE(m_asAudioEntities); i++) {
 		if (!m_asAudioEntities[i].m_bIsUsed) {
 			m_asAudioEntities[i].m_bIsUsed = true;
-			m_asAudioEntities[i].m_nStatus = 0;
+			m_asAudioEntities[i].m_bStatus = false;
 			m_asAudioEntities[i].m_nType = type;
 			m_asAudioEntities[i].m_pEntity = entity;
 			m_asAudioEntities[i].m_awAudioEvent[0] = SOUND_NO_SOUND;
@@ -163,7 +163,7 @@ void
 cAudioManager::SetEntityStatus(int32 id, uint8 status)
 {
 	if (m_bIsInitialised && id >= 0 && id < NUM_AUDIOENTITIES && m_asAudioEntities[id].m_bIsUsed)
-		m_asAudioEntities[id].m_nStatus = status;
+		m_asAudioEntities[id].m_bStatus = status;
 }
 
 void
diff --git a/src/audio/AudioManager.h b/src/audio/AudioManager.h
index d781ad71..9fe2f4ef 100644
--- a/src/audio/AudioManager.h
+++ b/src/audio/AudioManager.h
@@ -46,7 +46,7 @@ public:
 	eAudioType m_nType;
 	void *m_pEntity;
 	bool m_bIsUsed;
-	uint8 m_nStatus;
+	uint8 m_bStatus;
 	int16 m_awAudioEvent[NUM_AUDIOENTITY_EVENTS];
 	float m_afVolume[NUM_AUDIOENTITY_EVENTS];
 	uint8 m_AudioEvents;
@@ -132,6 +132,13 @@ public:
 	bool m_bDistanceCalculated;
 	float m_fDistance;
 	CPed *m_pPed;
+
+	cPedParams()
+	{
+		m_bDistanceCalculated = false;
+		m_fDistance = 0.0f;
+		m_pPed = nil;
+	}
 };
 
 class cVehicleParams
@@ -143,6 +150,16 @@ public:
 	cTransmission *m_pTransmission;
 	int32 m_nIndex;
 	float m_fVelocityChange;
+
+	cVehicleParams()
+	{
+		m_bDistanceCalculated = false;
+		m_fDistance = 0.0f;
+		m_pVehicle = nil;
+		m_pTransmission = nil;
+		m_nIndex = 0;
+		m_fVelocityChange = 0.0f;
+	}
 };
 
 VALIDATE_SIZE(cVehicleParams, 0x18);
diff --git a/src/audio/MusicManager.cpp b/src/audio/MusicManager.cpp
index cb4642b3..54c1b0bc 100644
--- a/src/audio/MusicManager.cpp
+++ b/src/audio/MusicManager.cpp
@@ -83,18 +83,40 @@ cMusicManager::DisplayRadioStationName()
 		if(m_bPlayerInCar && !m_bPreviousPlayerInCar)
 			pCurrentStation = nil;
 
-		if(SampleManager.IsMP3RadioChannelAvailable()) {
+#ifdef RADIO_SCROLL_TO_PREV_STATION
+		if(gNumRetunePresses < 0) {
 			gStreamedSound = m_nCurrentStreamedSound;
 
 			if(gStreamedSound == STREAMED_SOUND_CITY_AMBIENT ||
 			   gStreamedSound == STREAMED_SOUND_WATER_AMBIENT) {
-				gStreamedSound = STREAMED_SOUND_RADIO_POLICE;
-			} else {
+				gStreamedSound = POLICE_RADIO; // which means OFF
+				
+			} else if(gStreamedSound > STREAMED_SOUND_RADIO_MP3_PLAYER)
+				return;
+
+			gRetuneCounter = gNumRetunePresses;
+			pRetune = gStreamedSound;
 
-				if(gStreamedSound >
-				   STREAMED_SOUND_RADIO_MP3_PLAYER)
-					return;
+			while(gRetuneCounter < 0) {
+				if(pRetune == HEAD_RADIO) {
+					pRetune = RADIO_OFF;
+				} else if(pRetune == RADIO_OFF || pRetune == POLICE_RADIO) {
+					pRetune =  SampleManager.IsMP3RadioChannelAvailable() ? USERTRACK : USERTRACK - 1;
+				} else
+					pRetune--;
+
+				++gRetuneCounter;
 			}
+		} else
+#endif
+		if(SampleManager.IsMP3RadioChannelAvailable()) {
+			gStreamedSound = m_nCurrentStreamedSound;
+
+			if(gStreamedSound == STREAMED_SOUND_CITY_AMBIENT ||
+			   gStreamedSound == STREAMED_SOUND_WATER_AMBIENT) {
+				gStreamedSound = POLICE_RADIO; // which means OFF
+			} else if(gStreamedSound > STREAMED_SOUND_RADIO_MP3_PLAYER)
+				return;
 
 			pRetune = gNumRetunePresses + gStreamedSound;
 
@@ -140,10 +162,17 @@ cMusicManager::DisplayRadioStationName()
 		case FLASHBACK: string = TheText.Get("FEA_FM7"); break;
 		case CHATTERBOX: string = TheText.Get("FEA_FM8"); break;
 		case USERTRACK: string = TheText.Get("FEA_FM9"); break;
+#ifdef RADIO_OFF_TEXT
+		case RADIO_OFF: case POLICE_RADIO: string = TheText.Get("FEM_OFF"); break;
+#endif
 		default: return;
 		};
 
+#ifdef RADIO_OFF_TEXT
+		if(pRetune == USERTRACK && !SampleManager.IsMP3RadioChannelAvailable()) { string = TheText.Get("FEM_OFF"); }
+#else
 		if(pRetune > CHATTERBOX && !SampleManager.IsMP3RadioChannelAvailable()) { return; }
+#endif
 
 		if(string && pCurrentStation != string ||
 		   m_nCurrentStreamedSound == STREAMED_SOUND_RADIO_MP3_PLAYER &&
@@ -448,17 +477,31 @@ cMusicManager::ServiceGameMode()
 	if (m_bPlayerInCar) {
 		if (FindPlayerPed() != nil
 			&& !FindPlayerPed()->DyingOrDead()
-			&& CPad::GetPad(0)->ChangeStationJustDown()
 			&& !CReplay::IsPlayingBack()
 			&& FindPlayerVehicle() != nil
 			&& !UsesPoliceRadio(FindPlayerVehicle())) {
-				gRetuneCounter = 30;
-				gNumRetunePresses++;
-				AudioManager.PlayOneShot(AudioManager.m_nFrontEndEntity, SOUND_FRONTEND_RADIO_CHANGE, 1.0f);
-				if (SampleManager.IsMP3RadioChannelAvailable()) {
-					if (gNumRetunePresses > RADIO_OFF)
-						gNumRetunePresses -= RADIO_OFF;
+
+				if (CPad::GetPad(0)->ChangeStationJustDown()) {
+					gRetuneCounter = 30;
+					gNumRetunePresses++;
+					AudioManager.PlayOneShot(AudioManager.m_nFrontEndEntity, SOUND_FRONTEND_RADIO_CHANGE, 1.0f);
+					if (SampleManager.IsMP3RadioChannelAvailable()) {
+						if (gNumRetunePresses > RADIO_OFF)
+							gNumRetunePresses -= RADIO_OFF;
+					}
+				}
+#ifdef RADIO_SCROLL_TO_PREV_STATION
+				else if(CPad::GetPad(0)->GetMouseWheelDownJustDown() || CPad::GetPad(0)->GetMouseWheelUpJustDown()) {
+					int scrollNext = ControlsManager.GetControllerKeyAssociatedWithAction(VEHICLE_CHANGE_RADIO_STATION, MOUSE);
+					int scrollPrev = scrollNext == rsMOUSEWHEELUPBUTTON ? rsMOUSEWHEELDOWNBUTTON : scrollNext == rsMOUSEWHEELDOWNBUTTON ? rsMOUSEWHEELUPBUTTON : -1;
+
+					if (scrollPrev != -1 && !ControlsManager.IsAnyVehicleActionAssignedToMouseKey(scrollPrev)) {
+						gRetuneCounter = 30;
+						gNumRetunePresses--;
+						AudioManager.PlayOneShot(AudioManager.m_nFrontEndEntity, SOUND_FRONTEND_RADIO_CHANGE, 1.0f);
+					}
 				}
+#endif
 		}
 	} else {
 		nFramesSinceCutsceneEnded = -1;
@@ -500,10 +543,22 @@ cMusicManager::ServiceGameMode()
 			gNumRetunePresses = 0;
 			m_bSetNextStation = false;
 		}
+		// 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) gRetuneCounter = -1;
+			else if (gRetuneCounter == -1) {
+				m_bSetNextStation = true;
+				gRetuneCounter = 0;
+			}
+		}
+#else
 		if (gNumRetunePresses) {
 			if (gRetuneCounter != 0) gRetuneCounter--;
 			else m_bSetNextStation = true;
 		}
+#endif
 		if (gRetuneCounter)
 			AudioManager.DoPoliceRadioCrackle();
 		if (m_bSetNextStation) {
@@ -869,6 +924,20 @@ cMusicManager::GetNextCarTuning()
 	if (veh == nil) return RADIO_OFF;
 	if (UsesPoliceRadio(veh)) return POLICE_RADIO;
 	if (gNumRetunePresses != 0) {
+#ifdef RADIO_SCROLL_TO_PREV_STATION
+		if (gNumRetunePresses < 0) {
+			while (gNumRetunePresses < 0) {
+				if(veh->m_nRadioStation == HEAD_RADIO) {
+					veh->m_nRadioStation = RADIO_OFF;
+				} else if(veh->m_nRadioStation == RADIO_OFF || veh->m_nRadioStation == POLICE_RADIO) {
+					veh->m_nRadioStation = SampleManager.IsMP3RadioChannelAvailable() ? USERTRACK : USERTRACK - 1;
+				} else
+					veh->m_nRadioStation--;
+
+				++gNumRetunePresses;
+			}
+		} else
+#endif
 		if (SampleManager.IsMP3RadioChannelAvailable()) {
 			if (veh->m_nRadioStation == RADIO_OFF)
 				veh->m_nRadioStation = POLICE_RADIO;
diff --git a/src/audio/PoliceRadio.cpp b/src/audio/PoliceRadio.cpp
index 665494a3..37421904 100644
--- a/src/audio/PoliceRadio.cpp
+++ b/src/audio/PoliceRadio.cpp
@@ -93,7 +93,7 @@ cAudioManager::InitialisePoliceRadio()
 	for (int32 i = 0; i < ARRAY_SIZE(m_sPoliceRadioQueue.crimes); i++)
 		m_sPoliceRadioQueue.crimes[i].type = CRIME_NONE;
 
-	SampleManager.SetChannelReverbFlag(policeChannel, 0);
+	SampleManager.SetChannelReverbFlag(policeChannel, false);
 	gSpecialSuspectLastSeenReport = false;
 	for (int32 i = 0; i < ARRAY_SIZE(gMinTimeToNextReport); i++)
 		gMinTimeToNextReport[i] = m_FrameCounter;