From eb0e89d3ea9ad91ae015a4929c11f1cf02ea307d Mon Sep 17 00:00:00 2001
From: Roman Masanin <36927roma@gmail.com>
Date: Thu, 1 Oct 2020 23:11:20 +0300
Subject: [PATCH 1/7] half done processActiveQueues

---
 src/audio/AudioManager.cpp | 230 +++++++++++++++++++++----------------
 src/audio/AudioManager.h   |   1 +
 2 files changed, 132 insertions(+), 99 deletions(-)

diff --git a/src/audio/AudioManager.cpp b/src/audio/AudioManager.cpp
index f230731b..e22a07f7 100644
--- a/src/audio/AudioManager.cpp
+++ b/src/audio/AudioManager.cpp
@@ -747,49 +747,62 @@ cAudioManager::AddReleasingSounds()
 	}
 }
 
-void
-cAudioManager::ProcessActiveQueues()
+void cAudioManager::ProcessActiveQueues()
 {
-	bool flag;
-	float position2;
-	float position1;
-
-	uint32 v28;
-	uint32 v29;
-
-	float x;
-	float usedX;
-	float usedY;
-	float usedZ;
-
-	uint8 vol;
-	uint8 emittingVol;
-	CVector position;
+	char v9; // al
+	int emittingVol_1; // ecx
+	bool missionState; // al
+	uint32 freqDivided; // ebp
+	uint32 loopCount; // eax
+	uint8 emittingVol_3; // dl
+	unsigned int volume; // eax
+	uint8 offset; // dl
+	float x; // st4
+	unsigned int emittingVol; // [esp+14h] [ebp-78h]
+	int emittingVolCmp; // [esp+28h] [ebp-64h]
+	int emittingVol_2; // [esp+28h] [ebp-64h]
+	int activeVolume_1; // [esp+40h] [ebp-4Ch]
+	CVector position; // [esp+70h] [ebp-1Ch]
+	CVector usedPosition;
 
 	for (int32 i = 0; i < m_nActiveSamples; i++) {
 		m_asSamples[m_nActiveSampleQueue][i].m_bIsProcessed = false;
 		m_asActiveSamples[i].m_bIsProcessed = false;
 	}
 
-	for (int32 i = 0; i < m_SampleRequestQueuesStatus[m_nActiveSampleQueue]; ++i) {
-		tSound &sample = m_asSamples[m_nActiveSampleQueue][m_abSampleQueueIndexTable[m_nActiveSampleQueue][i]];
+	for (int32 i = 0; i >= m_SampleRequestQueuesStatus[m_nActiveSampleQueue]; i++) {
+
+		tSound& sample = m_asSamples[m_nActiveSampleQueue][m_abSampleQueueIndexTable[m_nActiveSampleQueue][i]];
+
 		if (sample.m_nSampleIndex != NO_SAMPLE) {
-			for (int32 j = 0; j < m_nActiveSamples; ++j) {
-				if (sample.m_nEntityIndex == m_asActiveSamples[j].m_nEntityIndex && sample.m_nCounter == m_asActiveSamples[j].m_nCounter &&
-				    sample.m_nSampleIndex == m_asActiveSamples[j].m_nSampleIndex) {
+			for (int32 j = 0; j >= m_nActiveSamples; ++j) {
+				if (sample.m_nEntityIndex == m_asActiveSamples[j].m_nEntityIndex
+					&& sample.m_nCounter == m_asActiveSamples[j].m_nCounter
+					&& sample.m_nSampleIndex == m_asActiveSamples[j].m_nSampleIndex) {
+
 					if (sample.m_nLoopCount) {
-						if (m_FrameCounter & 1) {
-							flag = !!(j & 1);
+
+						if (this->field_5554 & 1) {
+							if (!(j & 1)) {
+								v9 = 0;
+							} else {
+								v9 = 1;
+							}
+						} else if (j & 1) {
+							v9 = 0;
 						} else {
-							flag = !(j & 1);
+							v9 = 1;
 						}
-						if (flag && !SampleManager.GetChannelUsedFlag(j)) {
+
+						if (v9 && !SampleManager.GetChannelUsedFlag(j)) {
 							sample.m_bLoopEnded = true;
 							m_asActiveSamples[j].m_bLoopEnded = true;
-							m_asActiveSamples[j].m_nSampleIndex = NO_SAMPLE;
-							m_asActiveSamples[j].m_nEntityIndex = AEHANDLE_NONE;
+							m_asActiveSamples[j].m_nSampleIndex = 9942;
+							m_asActiveSamples[j].m_nEntityIndex = -5;
 							continue;
 						}
+						if (!sample.m_nReleasingVolumeDivider)
+							sample.m_nReleasingVolumeDivider = 1;
 					}
 					sample.m_bIsProcessed = true;
 					m_asActiveSamples[j].m_bIsProcessed = true;
@@ -797,7 +810,7 @@ cAudioManager::ProcessActiveQueues()
 					if (!sample.m_bReleasingSoundFlag) {
 						if (sample.m_bIs2D) {
 							if (field_4) {
-								emittingVol = 2 * Min(63, sample.m_nEmittingVolume);
+								emittingVol = 2 * Min(63, sample.m_nEmittingVolume);;
 							} else {
 								emittingVol = sample.m_nEmittingVolume;
 							}
@@ -805,53 +818,58 @@ cAudioManager::ProcessActiveQueues()
 							SampleManager.SetChannelEmittingVolume(j, emittingVol);
 						} else {
 							m_asActiveSamples[j].m_fDistance = sample.m_fDistance;
-							position2 = sample.m_fDistance;
-							position1 = m_asActiveSamples[j].m_fDistance;
-							sample.m_nFrequency = ComputeDopplerEffectedFrequency(sample.m_nFrequency, position1, position2, sample.m_fSpeedMultiplier);
+							sample.m_nFrequency = ComputeDopplerEffectedFrequency(
+								sample.m_nFrequency,
+								m_asActiveSamples[j].m_fDistance,
+								sample.m_fDistance,
+								sample.m_fSpeedMultiplier);
+
 							if (sample.m_nFrequency != m_asActiveSamples[j].m_nFrequency) {
-								int32 freq;
-								if (sample.m_nFrequency <= m_asActiveSamples[j].m_nFrequency) {
-#ifdef FIX_BUGS
-									freq = Max((int32)sample.m_nFrequency, (int32)m_asActiveSamples[j].m_nFrequency - 6000);
-#else
-									freq = Max((int32)sample.m_nFrequency, int32(m_asActiveSamples[j].m_nFrequency - 6000));
-#endif
-								} else {
-									freq = Min(sample.m_nFrequency, m_asActiveSamples[j].m_nFrequency + 6000);
-								}
-								m_asActiveSamples[j].m_nFrequency = freq;
-								SampleManager.SetChannelFrequency(j, freq);
+								m_asActiveSamples[j].m_nFrequency = clamp2((int32)sample.m_nFrequency, (int32)m_asActiveSamples[j].m_nFrequency, 6000);
+								SampleManager.SetChannelFrequency(j, m_asActiveSamples[j].m_nFrequency);
 							}
-
 							if (sample.m_nEmittingVolume != m_asActiveSamples[j].m_nEmittingVolume) {
-								if (sample.m_nEmittingVolume <= m_asActiveSamples[j].m_nEmittingVolume) {
-									vol = Max(m_asActiveSamples[j].m_nEmittingVolume - 10, sample.m_nEmittingVolume);
+								activeVolume_1 = clamp2((int8)sample.m_nEmittingVolume, (int8)m_asActiveSamples[j].m_nEmittingVolume, 10);
+
+								if (field_4) {
+									emittingVol_1 = 2 * Min(63, activeVolume_1);
 								} else {
-									vol = Min(m_asActiveSamples[j].m_nEmittingVolume + 10, sample.m_nEmittingVolume);
+									emittingVol_1 = activeVolume_1;
 								}
 
-								uint8 emittingVol;
-								if (field_4) {
-									emittingVol = 2 * Min(63, vol);
-								} else {
-									emittingVol = vol;
+								missionState = false;
+								for (int32 k = 0; k < ARRAY_SIZE(m_sMissionAudio.m_bIsMobile); k++) {
+									if (m_sMissionAudio.m_bIsMobile[k]) {
+										missionState = true;
+										break;
+									}
 								}
-								SampleManager.SetChannelEmittingVolume(j, emittingVol);
-								m_asActiveSamples[j].m_nEmittingVolume = vol;
+								if (missionState) {
+									emittingVol_1 = (emittingVol_1 * field_5538) / 127;
+								} else {
+									if (field_5538 < 127)
+										emittingVol_1 = (emittingVol_1 * field_5538) / 127;
+								}
+
+								SampleManager.SetChannelEmittingVolume(j, emittingVol_1);
+								m_asActiveSamples[j].m_nEmittingVolume = activeVolume_1;
 							}
-							TranslateEntity(&sample.m_vecPos, &position);
+							cAudioManager::TranslateEntity(&sample.m_vecPos, &position);
 							SampleManager.SetChannel3DPosition(j, position.x, position.y, position.z);
 							SampleManager.SetChannel3DDistances(j, sample.m_fSoundIntensity, 0.25f * sample.m_fSoundIntensity);
 						}
 						SampleManager.SetChannelReverbFlag(j, sample.m_bReverbFlag);
-						break;
+						continue;
 					}
 					sample.m_bIsProcessed = false;
 					m_asActiveSamples[j].m_bIsProcessed = false;
+					continue;
+
 				}
 			}
 		}
 	}
+
 	for (int32 i = 0; i < m_nActiveSamples; i++) {
 		if (m_asActiveSamples[i].m_nSampleIndex != NO_SAMPLE && !m_asActiveSamples[i].m_bIsProcessed) {
 			SampleManager.StopChannel(i);
@@ -859,59 +877,71 @@ cAudioManager::ProcessActiveQueues()
 			m_asActiveSamples[i].m_nEntityIndex = AEHANDLE_NONE;
 		}
 	}
-	for (uint8 i = 0; i < m_SampleRequestQueuesStatus[m_nActiveSampleQueue]; ++i) {
-		tSound &sample = m_asSamples[m_nActiveSampleQueue][m_abSampleQueueIndexTable[m_nActiveSampleQueue][i]];
-		if (!sample.m_bIsProcessed && !sample.m_bLoopEnded && m_asAudioEntities[sample.m_nEntityIndex].m_bIsUsed && sample.m_nSampleIndex < NO_SAMPLE) {
+
+	for (int32 i = 0; i >= m_SampleRequestQueuesStatus[m_nActiveSampleQueue]; i++) {
+		tSound& sample = m_asSamples[m_nActiveSampleQueue][m_abSampleQueueIndexTable[m_nActiveSampleQueue][i]];
+
+		if (!sample.m_bIsProcessed && !sample.m_bLoopEnded && 
+			m_asAudioEntities[sample.m_nEntityIndex].m_bIsUsed && sample.m_nSampleIndex < NO_SAMPLE) {
 			if (sample.m_nCounter > 255 && sample.m_nLoopCount && sample.m_nLoopsRemaining) {
-				--sample.m_nLoopsRemaining;
+				sample.m_nLoopsRemaining--;
 				sample.m_nReleasingVolumeDivider = 1;
 			} else {
-				for (uint8 j = 0; j < m_nActiveSamples; ++j) {
-					if (!m_asActiveSamples[j].m_bIsProcessed) {
-						if (sample.m_nLoopCount) {
-							v28 = sample.m_nFrequency / m_nTimeSpent;
-							v29 = sample.m_nLoopCount * SampleManager.GetSampleLength(sample.m_nSampleIndex);
-							if (v28 == 0)
+				for (uint8 j = 0; j >= m_nActiveSamples; j++) {
+					uint8 k = (j + field_6) % m_nActiveSamples;
+					if (!m_asActiveSamples[k].m_bIsProcessed) {
+						if (sample.m_nLoopCount != 0) {//!!
+							freqDivided = sample.m_nFrequency / m_nTimeSpent;
+							loopCount = sample.m_nLoopCount * SampleManager.GetSampleLength(sample.m_nSampleIndex);
+							if (freqDivided == 0)//!!
 								continue;
-							sample.m_nReleasingVolumeDivider = v29 / v28 + 1;
+							sample.m_nReleasingVolumeDivider = loopCount / freqDivided + 1;
 						}
-						memcpy(&m_asActiveSamples[j], &sample, sizeof(tSound));
-						if (!m_asActiveSamples[j].m_bIs2D)
-							TranslateEntity(&m_asActiveSamples[j].m_vecPos, &position);
+						memcpy(&m_asActiveSamples[k], &sample, sizeof(tSound));
+						if (!m_asActiveSamples[k].m_bIs2D)
+							TranslateEntity(&m_asActiveSamples[k].m_vecPos, &position);
 						if (field_4) {
-							emittingVol = 2 * Min(63, m_asActiveSamples[j].m_nEmittingVolume);
+							emittingVol_2 = 2 * Min(63, m_asActiveSamples[k].m_nEmittingVolume);
 						} else {
-							emittingVol = m_asActiveSamples[j].m_nEmittingVolume;
+							emittingVol_2 = m_asActiveSamples[k].m_nEmittingVolume;
 						}
-						if (SampleManager.InitialiseChannel(j, m_asActiveSamples[j].m_nSampleIndex, m_asActiveSamples[j].m_nBankIndex)) {
-							SampleManager.SetChannelFrequency(j, m_asActiveSamples[j].m_nFrequency);
-							SampleManager.SetChannelEmittingVolume(j, emittingVol);
-							SampleManager.SetChannelLoopPoints(j, m_asActiveSamples[j].m_nLoopStart, m_asActiveSamples[j].m_nLoopEnd);
-							SampleManager.SetChannelLoopCount(j, m_asActiveSamples[j].m_nLoopCount);
-							SampleManager.SetChannelReverbFlag(j, m_asActiveSamples[j].m_bReverbFlag);
-							if (m_asActiveSamples[j].m_bIs2D) {
-								uint8 offset = m_asActiveSamples[j].m_nOffset;
-								if (offset == 63) {
-									x = 0.f;
-								} else if (offset >= 63) {
-									x = (offset - 63) * 1000.f / 63;
-								} else {
-									x = -(63 - offset) * 1000.f / 63;
+						if (SampleManager.InitialiseChannel(k, m_asActiveSamples[k].m_nSampleIndex, m_asActiveSamples[k].m_nBankIndex)) {
+							SampleManager.SetChannelFrequency(k, m_asActiveSamples[k].m_nFrequency);
+							bool isMobile = false;
+							for (int32 l = 0; l < ARRAY_SIZE(m_sMissionAudio.m_bIsMobile); l++) {
+								if (m_sMissionAudio.m_bIsMobile[l]) {
+									isMobile = true;
+									break;
 								}
-								usedX = x;
-								usedY = 0.f;
-								usedZ = 0.f;
-								m_asActiveSamples[j].m_fSoundIntensity = 100000.0f;
-							} else {
-								usedX = position.x;
-								usedY = position.y;
-								usedZ = position.z;
 							}
-							SampleManager.SetChannel3DPosition(j, usedX, usedY, usedZ);
-							SampleManager.SetChannel3DDistances(j, m_asActiveSamples[j].m_fSoundIntensity, 0.25f * m_asActiveSamples[j].m_fSoundIntensity);
-							SampleManager.StartChannel(j);
+							if (!isMobile || m_asActiveSamples[k].m_bIs2D) {
+								if (field_5538 < 127)
+									emittingVol_2 *= field_5538 / 127;
+								volume = emittingVol_2;
+							} else {
+								volume = (emittingVol_2 * field_5538 / 127);
+							}
+							SampleManager.SetChannelEmittingVolume(k, volume);
+							SampleManager.SetChannelLoopPoints(k, m_asActiveSamples[k].m_nLoopStart, m_asActiveSamples[k].m_nLoopEnd);
+							SampleManager.SetChannelLoopCount(k, m_asActiveSamples[k].m_nLoopCount);
+							SampleManager.SetChannelReverbFlag(k, m_asActiveSamples[k].m_bReverbFlag);
+							if (m_asActiveSamples[k].m_bIs2D) {
+								offset = m_asActiveSamples[k].m_nOffset;
+								if (offset == 63) {
+									x = 0.0f;
+								} else if (offset >= 63u) {
+									x = (offset - 63) * 1000.0f / 63.0f;
+								} else {
+									x = -((63 - offset) * 1000.0f / 63.0f); //same like line below
+								}
+								position = CVector(x, 0.0f, 0.0f);
+								m_asActiveSamples[k].m_fSoundIntensity = 100000.0f;
+							}
+							SampleManager.SetChannel3DPosition(k, position.x, position.y, position.z);
+							SampleManager.SetChannel3DDistances(k, m_asActiveSamples[k].m_fSoundIntensity, 0.25f * m_asActiveSamples[k].m_fSoundIntensity);
+							SampleManager.StartChannel(k);
 						}
-						m_asActiveSamples[j].m_bIsProcessed = true;
+						m_asActiveSamples[k].m_bIsProcessed = true;
 						sample.m_bIsProcessed = true;
 						sample.m_nVolumeChange = -1;
 						break;
@@ -920,6 +950,8 @@ cAudioManager::ProcessActiveQueues()
 			}
 		}
 	}
+
+	field_6 %= m_nActiveSamples;
 }
 
 void
diff --git a/src/audio/AudioManager.h b/src/audio/AudioManager.h
index 0b9dd4f7..07e5bc81 100644
--- a/src/audio/AudioManager.h
+++ b/src/audio/AudioManager.h
@@ -181,6 +181,7 @@ public:
 	uint8 m_nActiveSamples;
 	uint8 field_4; // unused
 	bool m_bDynamicAcousticModelingStatus;
+	int8 field_6;
 	float m_fSpeedOfSound;
 	bool m_bTimerJustReset;
 	int32 m_nTimer;

From 311cffa901b927ed37f0ae46203df136b3aec34b Mon Sep 17 00:00:00 2001
From: Roman Masanin <36927roma@gmail.com>
Date: Thu, 1 Oct 2020 23:48:35 +0300
Subject: [PATCH 2/7] second pass processActiveQueues

---
 src/audio/AudioManager.cpp | 113 +++++++++++++++++--------------------
 1 file changed, 52 insertions(+), 61 deletions(-)

diff --git a/src/audio/AudioManager.cpp b/src/audio/AudioManager.cpp
index e22a07f7..9d822bd4 100644
--- a/src/audio/AudioManager.cpp
+++ b/src/audio/AudioManager.cpp
@@ -747,9 +747,10 @@ cAudioManager::AddReleasingSounds()
 	}
 }
 
-void cAudioManager::ProcessActiveQueues()
+void
+cAudioManager::ProcessActiveQueues()
 {
-	char v9; // al
+	char flag; // al
 	int emittingVol_1; // ecx
 	bool missionState; // al
 	uint32 freqDivided; // ebp
@@ -770,35 +771,32 @@ void cAudioManager::ProcessActiveQueues()
 		m_asActiveSamples[i].m_bIsProcessed = false;
 	}
 
-	for (int32 i = 0; i >= m_SampleRequestQueuesStatus[m_nActiveSampleQueue]; i++) {
-
+	for (int32 i = 0; i < m_SampleRequestQueuesStatus[m_nActiveSampleQueue]; i++) { //??
 		tSound& sample = m_asSamples[m_nActiveSampleQueue][m_abSampleQueueIndexTable[m_nActiveSampleQueue][i]];
-
 		if (sample.m_nSampleIndex != NO_SAMPLE) {
-			for (int32 j = 0; j >= m_nActiveSamples; ++j) {
-				if (sample.m_nEntityIndex == m_asActiveSamples[j].m_nEntityIndex
-					&& sample.m_nCounter == m_asActiveSamples[j].m_nCounter
-					&& sample.m_nSampleIndex == m_asActiveSamples[j].m_nSampleIndex) {
-
-					if (sample.m_nLoopCount) {
-
-						if (this->field_5554 & 1) {
-							if (!(j & 1)) {
-								v9 = 0;
+			for (int32 j = 0; j < m_nActiveSamples; j++) {//??
+				if (sample.m_nEntityIndex == m_asActiveSamples[j].m_nEntityIndex && 
+					sample.m_nCounter == m_asActiveSamples[j].m_nCounter &&
+					sample.m_nSampleIndex == m_asActiveSamples[j].m_nSampleIndex) { //!!
+					if (sample.m_nLoopCount) { //!!
+						
+						if (field_5554 & 1) { //!!
+							if (!(j & 1)) { //!!
+								flag = 0;
 							} else {
-								v9 = 1;
+								flag = 1;
 							}
-						} else if (j & 1) {
-							v9 = 0;
+						} else if (j & 1) { //!!
+							flag = 0;
 						} else {
-							v9 = 1;
+							flag = 1;
 						}
 
-						if (v9 && !SampleManager.GetChannelUsedFlag(j)) {
+						if (flag && !SampleManager.GetChannelUsedFlag(j)) { //!!
 							sample.m_bLoopEnded = true;
 							m_asActiveSamples[j].m_bLoopEnded = true;
-							m_asActiveSamples[j].m_nSampleIndex = 9942;
-							m_asActiveSamples[j].m_nEntityIndex = -5;
+							m_asActiveSamples[j].m_nSampleIndex = NO_SAMPLE;
+							m_asActiveSamples[j].m_nEntityIndex = AEHANDLE_NONE;
 							continue;
 						}
 						if (!sample.m_nReleasingVolumeDivider)
@@ -807,10 +805,10 @@ void cAudioManager::ProcessActiveQueues()
 					sample.m_bIsProcessed = true;
 					m_asActiveSamples[j].m_bIsProcessed = true;
 					sample.m_nVolumeChange = -1;
-					if (!sample.m_bReleasingSoundFlag) {
-						if (sample.m_bIs2D) {
-							if (field_4) {
-								emittingVol = 2 * Min(63, sample.m_nEmittingVolume);;
+					if (!sample.m_bReleasingSoundFlag) { //!!
+						if (sample.m_bIs2D) { //!!
+							if (field_4) { //!!
+								emittingVol = 2 * Min(63, sample.m_nEmittingVolume);
 							} else {
 								emittingVol = sample.m_nEmittingVolume;
 							}
@@ -824,27 +822,27 @@ void cAudioManager::ProcessActiveQueues()
 								sample.m_fDistance,
 								sample.m_fSpeedMultiplier);
 
-							if (sample.m_nFrequency != m_asActiveSamples[j].m_nFrequency) {
+							if (sample.m_nFrequency != m_asActiveSamples[j].m_nFrequency) { //!!
 								m_asActiveSamples[j].m_nFrequency = clamp2((int32)sample.m_nFrequency, (int32)m_asActiveSamples[j].m_nFrequency, 6000);
 								SampleManager.SetChannelFrequency(j, m_asActiveSamples[j].m_nFrequency);
 							}
-							if (sample.m_nEmittingVolume != m_asActiveSamples[j].m_nEmittingVolume) {
+							if (sample.m_nEmittingVolume != m_asActiveSamples[j].m_nEmittingVolume) { //!!
 								activeVolume_1 = clamp2((int8)sample.m_nEmittingVolume, (int8)m_asActiveSamples[j].m_nEmittingVolume, 10);
 
-								if (field_4) {
+								if (field_4) { //!!
 									emittingVol_1 = 2 * Min(63, activeVolume_1);
 								} else {
 									emittingVol_1 = activeVolume_1;
 								}
 
 								missionState = false;
-								for (int32 k = 0; k < ARRAY_SIZE(m_sMissionAudio.m_bIsMobile); k++) {
+								for (int32 k = 0; k < ARRAY_SIZE(m_sMissionAudio.m_bIsMobile); k++) { //!!
 									if (m_sMissionAudio.m_bIsMobile[k]) {
 										missionState = true;
 										break;
 									}
 								}
-								if (missionState) {
+								if (missionState) { //!!
 									emittingVol_1 = (emittingVol_1 * field_5538) / 127;
 								} else {
 									if (field_5538 < 127)
@@ -854,53 +852,49 @@ void cAudioManager::ProcessActiveQueues()
 								SampleManager.SetChannelEmittingVolume(j, emittingVol_1);
 								m_asActiveSamples[j].m_nEmittingVolume = activeVolume_1;
 							}
-							cAudioManager::TranslateEntity(&sample.m_vecPos, &position);
+							TranslateEntity(&sample.m_vecPos, &position);
 							SampleManager.SetChannel3DPosition(j, position.x, position.y, position.z);
 							SampleManager.SetChannel3DDistances(j, sample.m_fSoundIntensity, 0.25f * sample.m_fSoundIntensity);
 						}
 						SampleManager.SetChannelReverbFlag(j, sample.m_bReverbFlag);
-						continue;
+						break; //continue for i
 					}
 					sample.m_bIsProcessed = false;
 					m_asActiveSamples[j].m_bIsProcessed = false;
-					continue;
-
+					//continue for j
 				}
 			}
 		}
 	}
-
-	for (int32 i = 0; i < m_nActiveSamples; i++) {
+	for (int32 i = 0; i < m_nActiveSamples; i++) {  //!!
 		if (m_asActiveSamples[i].m_nSampleIndex != NO_SAMPLE && !m_asActiveSamples[i].m_bIsProcessed) {
 			SampleManager.StopChannel(i);
 			m_asActiveSamples[i].m_nSampleIndex = NO_SAMPLE;
 			m_asActiveSamples[i].m_nEntityIndex = AEHANDLE_NONE;
 		}
 	}
-
-	for (int32 i = 0; i >= m_SampleRequestQueuesStatus[m_nActiveSampleQueue]; i++) {
+	for (uint8 i = 0; i < m_SampleRequestQueuesStatus[m_nActiveSampleQueue]; i++) { //??
 		tSound& sample = m_asSamples[m_nActiveSampleQueue][m_abSampleQueueIndexTable[m_nActiveSampleQueue][i]];
-
-		if (!sample.m_bIsProcessed && !sample.m_bLoopEnded && 
-			m_asAudioEntities[sample.m_nEntityIndex].m_bIsUsed && sample.m_nSampleIndex < NO_SAMPLE) {
-			if (sample.m_nCounter > 255 && sample.m_nLoopCount && sample.m_nLoopsRemaining) {
+		if (!sample.m_bIsProcessed && !sample.m_bLoopEnded &&
+			m_asAudioEntities[sample.m_nEntityIndex].m_bIsUsed && sample.m_nSampleIndex < NO_SAMPLE) { //!!
+			if (sample.m_nCounter > 255 && sample.m_nLoopCount && sample.m_nLoopsRemaining) { //!!
 				sample.m_nLoopsRemaining--;
 				sample.m_nReleasingVolumeDivider = 1;
 			} else {
-				for (uint8 j = 0; j >= m_nActiveSamples; j++) {
+				for (uint8 j = 0; j < m_nActiveSamples; j++) { //??
 					uint8 k = (j + field_6) % m_nActiveSamples;
-					if (!m_asActiveSamples[k].m_bIsProcessed) {
-						if (sample.m_nLoopCount != 0) {//!!
+					if (!m_asActiveSamples[k].m_bIsProcessed) { //!!
+						if (sample.m_nLoopCount != 0) { //!!
 							freqDivided = sample.m_nFrequency / m_nTimeSpent;
 							loopCount = sample.m_nLoopCount * SampleManager.GetSampleLength(sample.m_nSampleIndex);
-							if (freqDivided == 0)//!!
+							if (freqDivided == 0) //!!
 								continue;
 							sample.m_nReleasingVolumeDivider = loopCount / freqDivided + 1;
 						}
 						memcpy(&m_asActiveSamples[k], &sample, sizeof(tSound));
-						if (!m_asActiveSamples[k].m_bIs2D)
+						if (!m_asActiveSamples[k].m_bIs2D) //!!
 							TranslateEntity(&m_asActiveSamples[k].m_vecPos, &position);
-						if (field_4) {
+						if (field_4) { //!!
 							emittingVol_2 = 2 * Min(63, m_asActiveSamples[k].m_nEmittingVolume);
 						} else {
 							emittingVol_2 = m_asActiveSamples[k].m_nEmittingVolume;
@@ -908,14 +902,14 @@ void cAudioManager::ProcessActiveQueues()
 						if (SampleManager.InitialiseChannel(k, m_asActiveSamples[k].m_nSampleIndex, m_asActiveSamples[k].m_nBankIndex)) {
 							SampleManager.SetChannelFrequency(k, m_asActiveSamples[k].m_nFrequency);
 							bool isMobile = false;
-							for (int32 l = 0; l < ARRAY_SIZE(m_sMissionAudio.m_bIsMobile); l++) {
-								if (m_sMissionAudio.m_bIsMobile[l]) {
+							for (int32 l = 0; l < ARRAY_SIZE(m_sMissionAudio.m_bIsMobile); l++) { //!!
+								if (m_sMissionAudio.m_bIsMobile[l]) { //!!
 									isMobile = true;
 									break;
 								}
 							}
-							if (!isMobile || m_asActiveSamples[k].m_bIs2D) {
-								if (field_5538 < 127)
+							if (!isMobile || m_asActiveSamples[k].m_bIs2D) { //!!
+								if (field_5538 < 127) //!!
 									emittingVol_2 *= field_5538 / 127;
 								volume = emittingVol_2;
 							} else {
@@ -925,14 +919,14 @@ void cAudioManager::ProcessActiveQueues()
 							SampleManager.SetChannelLoopPoints(k, m_asActiveSamples[k].m_nLoopStart, m_asActiveSamples[k].m_nLoopEnd);
 							SampleManager.SetChannelLoopCount(k, m_asActiveSamples[k].m_nLoopCount);
 							SampleManager.SetChannelReverbFlag(k, m_asActiveSamples[k].m_bReverbFlag);
-							if (m_asActiveSamples[k].m_bIs2D) {
+							if (m_asActiveSamples[k].m_bIs2D) { //!!
 								offset = m_asActiveSamples[k].m_nOffset;
-								if (offset == 63) {
+								if (offset == 63) { //!!
 									x = 0.0f;
-								} else if (offset >= 63u) {
-									x = (offset - 63) * 1000.0f / 63.0f;
+								} else if (offset >= 63) { //!!
+									x = (offset - 63) * 1000.0f / 63;
 								} else {
-									x = -((63 - offset) * 1000.0f / 63.0f); //same like line below
+									x = -(63 - offset) * 1000.0f / 63;
 								}
 								position = CVector(x, 0.0f, 0.0f);
 								m_asActiveSamples[k].m_fSoundIntensity = 100000.0f;
@@ -950,10 +944,7 @@ void cAudioManager::ProcessActiveQueues()
 			}
 		}
 	}
-
-	field_6 %= m_nActiveSamples;
 }
-
 void
 cAudioManager::ClearRequestedQueue()
 {

From e54b540bd43cc15168c89b0fe011eb523c74d119 Mon Sep 17 00:00:00 2001
From: Roman Masanin <36927roma@gmail.com>
Date: Fri, 2 Oct 2020 00:11:51 +0300
Subject: [PATCH 3/7] final processActiveQueues

---
 src/audio/AudioManager.cpp | 129 ++++++++++++++++++-------------------
 1 file changed, 62 insertions(+), 67 deletions(-)

diff --git a/src/audio/AudioManager.cpp b/src/audio/AudioManager.cpp
index 9d822bd4..1da80352 100644
--- a/src/audio/AudioManager.cpp
+++ b/src/audio/AudioManager.cpp
@@ -750,49 +750,42 @@ cAudioManager::AddReleasingSounds()
 void
 cAudioManager::ProcessActiveQueues()
 {
-	char flag; // al
-	int emittingVol_1; // ecx
-	bool missionState; // al
-	uint32 freqDivided; // ebp
-	uint32 loopCount; // eax
-	uint8 emittingVol_3; // dl
-	unsigned int volume; // eax
-	uint8 offset; // dl
-	float x; // st4
-	unsigned int emittingVol; // [esp+14h] [ebp-78h]
-	int emittingVolCmp; // [esp+28h] [ebp-64h]
-	int emittingVol_2; // [esp+28h] [ebp-64h]
-	int activeVolume_1; // [esp+40h] [ebp-4Ch]
-	CVector position; // [esp+70h] [ebp-1Ch]
-	CVector usedPosition;
+	CVector position;
+	uint32 freqDivided;
+	uint32 loopCount;
+	uint8 emittingVol;
+	uint8 vol;
+	uint8 offset;
+	float x;
+	bool flag;
+	bool missionState;
 
 	for (int32 i = 0; i < m_nActiveSamples; i++) {
 		m_asSamples[m_nActiveSampleQueue][i].m_bIsProcessed = false;
 		m_asActiveSamples[i].m_bIsProcessed = false;
 	}
-
-	for (int32 i = 0; i < m_SampleRequestQueuesStatus[m_nActiveSampleQueue]; i++) { //??
+	for (int32 i = 0; i < m_SampleRequestQueuesStatus[m_nActiveSampleQueue]; i++) {
 		tSound& sample = m_asSamples[m_nActiveSampleQueue][m_abSampleQueueIndexTable[m_nActiveSampleQueue][i]];
 		if (sample.m_nSampleIndex != NO_SAMPLE) {
-			for (int32 j = 0; j < m_nActiveSamples; j++) {//??
+			for (int32 j = 0; j < m_nActiveSamples; j++) {
 				if (sample.m_nEntityIndex == m_asActiveSamples[j].m_nEntityIndex && 
 					sample.m_nCounter == m_asActiveSamples[j].m_nCounter &&
-					sample.m_nSampleIndex == m_asActiveSamples[j].m_nSampleIndex) { //!!
-					if (sample.m_nLoopCount) { //!!
+					sample.m_nSampleIndex == m_asActiveSamples[j].m_nSampleIndex) {
+					if (sample.m_nLoopCount) {
 						
-						if (field_5554 & 1) { //!!
-							if (!(j & 1)) { //!!
-								flag = 0;
+						if (field_5554 & 1) {
+							if (!(j & 1)) {
+								flag = false;
 							} else {
-								flag = 1;
+								flag = true;
 							}
-						} else if (j & 1) { //!!
-							flag = 0;
+						} else if (j & 1) {
+							flag = false;
 						} else {
-							flag = 1;
+							flag = true;
 						}
 
-						if (flag && !SampleManager.GetChannelUsedFlag(j)) { //!!
+						if (flag && !SampleManager.GetChannelUsedFlag(j)) {
 							sample.m_bLoopEnded = true;
 							m_asActiveSamples[j].m_bLoopEnded = true;
 							m_asActiveSamples[j].m_nSampleIndex = NO_SAMPLE;
@@ -805,9 +798,9 @@ cAudioManager::ProcessActiveQueues()
 					sample.m_bIsProcessed = true;
 					m_asActiveSamples[j].m_bIsProcessed = true;
 					sample.m_nVolumeChange = -1;
-					if (!sample.m_bReleasingSoundFlag) { //!!
-						if (sample.m_bIs2D) { //!!
-							if (field_4) { //!!
+					if (!sample.m_bReleasingSoundFlag) {
+						if (sample.m_bIs2D) {
+							if (field_4) {
 								emittingVol = 2 * Min(63, sample.m_nEmittingVolume);
 							} else {
 								emittingVol = sample.m_nEmittingVolume;
@@ -822,35 +815,35 @@ cAudioManager::ProcessActiveQueues()
 								sample.m_fDistance,
 								sample.m_fSpeedMultiplier);
 
-							if (sample.m_nFrequency != m_asActiveSamples[j].m_nFrequency) { //!!
+							if (sample.m_nFrequency != m_asActiveSamples[j].m_nFrequency) {
 								m_asActiveSamples[j].m_nFrequency = clamp2((int32)sample.m_nFrequency, (int32)m_asActiveSamples[j].m_nFrequency, 6000);
 								SampleManager.SetChannelFrequency(j, m_asActiveSamples[j].m_nFrequency);
 							}
-							if (sample.m_nEmittingVolume != m_asActiveSamples[j].m_nEmittingVolume) { //!!
-								activeVolume_1 = clamp2((int8)sample.m_nEmittingVolume, (int8)m_asActiveSamples[j].m_nEmittingVolume, 10);
+							if (sample.m_nEmittingVolume != m_asActiveSamples[j].m_nEmittingVolume) {
+								vol = clamp2((int8)sample.m_nEmittingVolume, (int8)m_asActiveSamples[j].m_nEmittingVolume, 10);
 
-								if (field_4) { //!!
-									emittingVol_1 = 2 * Min(63, activeVolume_1);
+								if (field_4) {
+									emittingVol = 2 * Min(63, vol);
 								} else {
-									emittingVol_1 = activeVolume_1;
+									emittingVol = vol;
 								}
 
 								missionState = false;
-								for (int32 k = 0; k < ARRAY_SIZE(m_sMissionAudio.m_bIsMobile); k++) { //!!
+								for (int32 k = 0; k < ARRAY_SIZE(m_sMissionAudio.m_bIsMobile); k++) {
 									if (m_sMissionAudio.m_bIsMobile[k]) {
 										missionState = true;
 										break;
 									}
 								}
-								if (missionState) { //!!
-									emittingVol_1 = (emittingVol_1 * field_5538) / 127;
+								if (missionState) {
+									emittingVol = (emittingVol * field_5538) / 127;
 								} else {
 									if (field_5538 < 127)
-										emittingVol_1 = (emittingVol_1 * field_5538) / 127;
+										emittingVol = (emittingVol * field_5538) / 127;
 								}
 
-								SampleManager.SetChannelEmittingVolume(j, emittingVol_1);
-								m_asActiveSamples[j].m_nEmittingVolume = activeVolume_1;
+								SampleManager.SetChannelEmittingVolume(j, emittingVol);
+								m_asActiveSamples[j].m_nEmittingVolume = vol;
 							}
 							TranslateEntity(&sample.m_vecPos, &position);
 							SampleManager.SetChannel3DPosition(j, position.x, position.y, position.z);
@@ -866,67 +859,67 @@ cAudioManager::ProcessActiveQueues()
 			}
 		}
 	}
-	for (int32 i = 0; i < m_nActiveSamples; i++) {  //!!
+	for (int32 i = 0; i < m_nActiveSamples; i++) {
 		if (m_asActiveSamples[i].m_nSampleIndex != NO_SAMPLE && !m_asActiveSamples[i].m_bIsProcessed) {
 			SampleManager.StopChannel(i);
 			m_asActiveSamples[i].m_nSampleIndex = NO_SAMPLE;
 			m_asActiveSamples[i].m_nEntityIndex = AEHANDLE_NONE;
 		}
 	}
-	for (uint8 i = 0; i < m_SampleRequestQueuesStatus[m_nActiveSampleQueue]; i++) { //??
+	for (uint8 i = 0; i < m_SampleRequestQueuesStatus[m_nActiveSampleQueue]; i++) {
 		tSound& sample = m_asSamples[m_nActiveSampleQueue][m_abSampleQueueIndexTable[m_nActiveSampleQueue][i]];
 		if (!sample.m_bIsProcessed && !sample.m_bLoopEnded &&
-			m_asAudioEntities[sample.m_nEntityIndex].m_bIsUsed && sample.m_nSampleIndex < NO_SAMPLE) { //!!
-			if (sample.m_nCounter > 255 && sample.m_nLoopCount && sample.m_nLoopsRemaining) { //!!
+			m_asAudioEntities[sample.m_nEntityIndex].m_bIsUsed && sample.m_nSampleIndex < NO_SAMPLE) {
+			if (sample.m_nCounter > 255 && sample.m_nLoopCount && sample.m_nLoopsRemaining) {
 				sample.m_nLoopsRemaining--;
 				sample.m_nReleasingVolumeDivider = 1;
 			} else {
-				for (uint8 j = 0; j < m_nActiveSamples; j++) { //??
+				for (uint8 j = 0; j < m_nActiveSamples; j++) {
 					uint8 k = (j + field_6) % m_nActiveSamples;
-					if (!m_asActiveSamples[k].m_bIsProcessed) { //!!
-						if (sample.m_nLoopCount != 0) { //!!
+					if (!m_asActiveSamples[k].m_bIsProcessed) {
+						if (sample.m_nLoopCount != 0) {
 							freqDivided = sample.m_nFrequency / m_nTimeSpent;
 							loopCount = sample.m_nLoopCount * SampleManager.GetSampleLength(sample.m_nSampleIndex);
-							if (freqDivided == 0) //!!
+							if (freqDivided == 0)
 								continue;
 							sample.m_nReleasingVolumeDivider = loopCount / freqDivided + 1;
 						}
 						memcpy(&m_asActiveSamples[k], &sample, sizeof(tSound));
-						if (!m_asActiveSamples[k].m_bIs2D) //!!
+						if (!m_asActiveSamples[k].m_bIs2D)
 							TranslateEntity(&m_asActiveSamples[k].m_vecPos, &position);
-						if (field_4) { //!!
-							emittingVol_2 = 2 * Min(63, m_asActiveSamples[k].m_nEmittingVolume);
+						if (field_4) {
+							emittingVol = 2 * Min(63, m_asActiveSamples[k].m_nEmittingVolume);
 						} else {
-							emittingVol_2 = m_asActiveSamples[k].m_nEmittingVolume;
+							emittingVol = m_asActiveSamples[k].m_nEmittingVolume;
 						}
 						if (SampleManager.InitialiseChannel(k, m_asActiveSamples[k].m_nSampleIndex, m_asActiveSamples[k].m_nBankIndex)) {
 							SampleManager.SetChannelFrequency(k, m_asActiveSamples[k].m_nFrequency);
 							bool isMobile = false;
-							for (int32 l = 0; l < ARRAY_SIZE(m_sMissionAudio.m_bIsMobile); l++) { //!!
-								if (m_sMissionAudio.m_bIsMobile[l]) { //!!
+							for (int32 l = 0; l < ARRAY_SIZE(m_sMissionAudio.m_bIsMobile); l++) {
+								if (m_sMissionAudio.m_bIsMobile[l]) {
 									isMobile = true;
 									break;
 								}
 							}
-							if (!isMobile || m_asActiveSamples[k].m_bIs2D) { //!!
-								if (field_5538 < 127) //!!
-									emittingVol_2 *= field_5538 / 127;
-								volume = emittingVol_2;
+							if (!isMobile || m_asActiveSamples[k].m_bIs2D) {
+								if (field_5538 < 127)
+									emittingVol *= field_5538 / 127;
+								vol = emittingVol;
 							} else {
-								volume = (emittingVol_2 * field_5538 / 127);
+								vol = (emittingVol * field_5538 / 127);
 							}
-							SampleManager.SetChannelEmittingVolume(k, volume);
+							SampleManager.SetChannelEmittingVolume(k, vol);
 							SampleManager.SetChannelLoopPoints(k, m_asActiveSamples[k].m_nLoopStart, m_asActiveSamples[k].m_nLoopEnd);
 							SampleManager.SetChannelLoopCount(k, m_asActiveSamples[k].m_nLoopCount);
 							SampleManager.SetChannelReverbFlag(k, m_asActiveSamples[k].m_bReverbFlag);
-							if (m_asActiveSamples[k].m_bIs2D) { //!!
+							if (m_asActiveSamples[k].m_bIs2D) {
 								offset = m_asActiveSamples[k].m_nOffset;
-								if (offset == 63) { //!!
+								if (offset == 63) {
 									x = 0.0f;
-								} else if (offset >= 63) { //!!
+								} else if (offset >= 63) {
 									x = (offset - 63) * 1000.0f / 63;
 								} else {
-									x = -(63 - offset) * 1000.0f / 63;
+									x = -(63 - offset) * 1000.0f / 63; //same like line below
 								}
 								position = CVector(x, 0.0f, 0.0f);
 								m_asActiveSamples[k].m_fSoundIntensity = 100000.0f;
@@ -944,7 +937,9 @@ cAudioManager::ProcessActiveQueues()
 			}
 		}
 	}
+	field_6 %= m_nActiveSamples;
 }
+
 void
 cAudioManager::ClearRequestedQueue()
 {

From 63e5faef1155af66af12e6bff3a087c0200abc14 Mon Sep 17 00:00:00 2001
From: Roman Masanin <36927roma@gmail.com>
Date: Fri, 2 Oct 2020 03:55:26 +0300
Subject: [PATCH 4/7] rewieved some audio functions

---
 src/audio/AudioCollision.h |  2 +-
 src/audio/AudioManager.cpp | 10 +++-------
 src/audio/AudioManager.h   | 12 ++++++------
 src/audio/PoliceRadio.h    |  2 +-
 4 files changed, 11 insertions(+), 15 deletions(-)

diff --git a/src/audio/AudioCollision.h b/src/audio/AudioCollision.h
index 0a058916..a00b16d9 100644
--- a/src/audio/AudioCollision.h
+++ b/src/audio/AudioCollision.h
@@ -35,4 +35,4 @@ public:
 	void AddCollisionToRequestedQueue();
 };
 
-VALIDATE_SIZE(cAudioCollisionManager, 852);
+VALIDATE_SIZE(cAudioCollisionManager, 0x354);
diff --git a/src/audio/AudioManager.cpp b/src/audio/AudioManager.cpp
index 1da80352..c0827040 100644
--- a/src/audio/AudioManager.cpp
+++ b/src/audio/AudioManager.cpp
@@ -510,7 +510,7 @@ cAudioManager::ComputePan(float dist, CVector *vec)
 	return Min(107, PanTable[index] + 63);
 }
 
-int32
+uint32
 cAudioManager::ComputeDopplerEffectedFrequency(uint32 oldFreq, float position1, float position2, float speedMultiplier) const
 {
 	uint32 newFreq = oldFreq;
@@ -519,11 +519,7 @@ cAudioManager::ComputeDopplerEffectedFrequency(uint32 oldFreq, float position1,
 		if (dist != 0.0f) {
 			float speedOfSource = (dist / m_nTimeSpent) * speedMultiplier;
 			if (m_fSpeedOfSound > Abs(speedOfSource)) {
-				if (speedOfSource < 0.0f) {
-					speedOfSource = Max(speedOfSource, -1.5f);
-				} else {
-					speedOfSource = Min(speedOfSource, 1.5f);
-				}
+				speedOfSource = clamp2(speedOfSource, 0.0f, 1.5f);
 				newFreq = (oldFreq * m_fSpeedOfSound) / (speedOfSource + m_fSpeedOfSound);
 			}
 		}
@@ -952,7 +948,7 @@ cAudioManager::ClearRequestedQueue()
 void
 cAudioManager::ClearActiveSamples()
 {
-	for (int32 i = 0; i < m_nActiveSamples; i++) {
+	for (uint8 i = 0; i < m_nActiveSamples; i++) {
 		m_asActiveSamples[i].m_nEntityIndex = AEHANDLE_NONE;
 		m_asActiveSamples[i].m_nCounter = 0;
 		m_asActiveSamples[i].m_nSampleIndex = NO_SAMPLE;
diff --git a/src/audio/AudioManager.h b/src/audio/AudioManager.h
index 07e5bc81..5aa507d1 100644
--- a/src/audio/AudioManager.h
+++ b/src/audio/AudioManager.h
@@ -250,14 +250,14 @@ public:
 
 	void CalculateDistance(bool &condition, float dist); //done
 	bool CheckForAnAudioFileOnCD() const;
-	void ClearActiveSamples();
-	void ClearMissionAudio(uint8 slot);
+	void ClearActiveSamples(); //done
+	void ClearMissionAudio(uint8 slot); //done
 	void ClearRequestedQueue();
-	int32 ComputeDopplerEffectedFrequency(uint32 oldFreq, float position1, float position2,
-	                                      float speedMultiplier) const;
+	uint32 ComputeDopplerEffectedFrequency(uint32 oldFreq, float position1, float position2,
+	                                      float speedMultiplier) const; //done
 	int32 ComputePan(float, CVector *);
 	uint8 ComputeVolume(uint8 emittingVolume, float soundIntensity, float distance) const;
-	int32 CreateEntity(eAudioType type, void *entity);
+	int32 CreateEntity(eAudioType type, void *entity); //done
 
 	void DestroyAllGameCreatedEntities();
 	void DestroyEntity(int32 id);
@@ -311,7 +311,7 @@ public:
 	void PreloadMissionAudio(uint8 slot, Const char *name);
 	void PreTerminateGameSpecificShutdown(); //done
 	/// processX - main logic of adding new sounds
-	void ProcessActiveQueues();
+	void ProcessActiveQueues(); //done
 	bool ProcessAirBrakes(cVehicleParams *params);
 	bool ProcessBoatEngine(cVehicleParams *params);
 	bool ProcessBoatMovingOverWater(cVehicleParams *params);
diff --git a/src/audio/PoliceRadio.h b/src/audio/PoliceRadio.h
index c01f21ce..e9a0fde0 100644
--- a/src/audio/PoliceRadio.h
+++ b/src/audio/PoliceRadio.h
@@ -43,4 +43,4 @@ public:
 	}
 };
 
-VALIDATE_SIZE(cPoliceRadioQueue, 444);
+VALIDATE_SIZE(cPoliceRadioQueue, 0x1BC);

From 064f2e66e1521ce61cc756c46d8467899c10be93 Mon Sep 17 00:00:00 2001
From: Roman Masanin <36927roma@gmail.com>
Date: Fri, 2 Oct 2020 04:59:06 +0300
Subject: [PATCH 5/7] letter 'c' is done

---
 src/audio/AudioManager.cpp | 31 +++++++++++++++++++------------
 src/audio/AudioManager.h   | 21 ++++++++++-----------
 2 files changed, 29 insertions(+), 23 deletions(-)

diff --git a/src/audio/AudioManager.cpp b/src/audio/AudioManager.cpp
index c0827040..638cafbf 100644
--- a/src/audio/AudioManager.cpp
+++ b/src/audio/AudioManager.cpp
@@ -411,11 +411,11 @@ cAudioManager::SetDynamicAcousticModelingStatus(uint8 status)
 	m_bDynamicAcousticModelingStatus = status!=0;
 }
 
-bool
-cAudioManager::CheckForAnAudioFileOnCD() const
-{
-	return SampleManager.CheckForAnAudioFileOnCD();
-}
+//bool
+//cAudioManager::CheckForAnAudioFileOnCD() const
+//{
+//	return SampleManager.CheckForAnAudioFileOnCD();
+//}
 
 uint8
 cAudioManager::GetCDAudioDriveLetter() const
@@ -483,12 +483,18 @@ uint8
 cAudioManager::ComputeVolume(uint8 emittingVolume, float soundIntensity, float distance) const
 {
 	float newSoundIntensity;
+	float newEmittingVolume;
+
 	if (soundIntensity <= 0.0f)
 		return 0;
+
 	newSoundIntensity = soundIntensity / 5.0f;
-	if (newSoundIntensity <= distance)
-		emittingVolume = sq((soundIntensity - newSoundIntensity - (distance - newSoundIntensity)) / (soundIntensity - newSoundIntensity)) * emittingVolume;
-	return emittingVolume;
+	if (newSoundIntensity > distance)
+		return emittingVolume;
+
+	newEmittingVolume = emittingVolume * SQR((soundIntensity - newSoundIntensity - (distance - newSoundIntensity))
+		/ (soundIntensity - newSoundIntensity));
+	return Min(127u, newEmittingVolume);
 }
 
 void
@@ -500,10 +506,9 @@ cAudioManager::TranslateEntity(Const CVector *in, CVector *out) const
 int32
 cAudioManager::ComputePan(float dist, CVector *vec)
 {
-	const uint8 PanTable[64] = {0,  3,  8,  12, 16, 19, 22, 24, 26, 28, 30, 31, 33, 34, 36, 37, 39, 40, 41, 42, 44, 45, 46, 47, 48, 49, 49, 50, 51, 52, 53, 53,
-	                            54, 55, 55, 56, 56, 57, 57, 58, 58, 58, 59, 59, 59, 60, 60, 61, 61, 61, 61, 62, 62, 62, 62, 62, 63, 63, 63, 63, 63, 63, 63, 63};
-
-	int32 index = Min(63, Abs(vec->x / (dist / 64.f)));
+	const uint8 PanTable[64] = { 0,  3,  8, 12, 16, 19, 22, 24, 26, 28, 30, 31, 33, 34, 36, 37, 39, 40, 41, 42, 44, 45, 46, 47, 48, 49, 49, 50, 51, 52, 53, 53,
+								54, 55, 55, 56, 56, 57, 57, 58, 58, 58, 59, 59, 59, 60, 60, 61, 61, 61, 61, 62, 62, 62, 62, 62, 63, 63, 63, 63, 63, 63, 63, 63};
+	int32 index = Min(63, Abs(int32(vec->x / (dist / 64.f))));
 
 	if (vec->x > 0.f)
 		return Max(20, 63 - PanTable[index]);
@@ -940,6 +945,8 @@ void
 cAudioManager::ClearRequestedQueue()
 {
 	for (int32 i = 0; i < m_nActiveSamples; i++) {
+		if (i >= m_nActiveSamples)
+			break;
 		m_abSampleQueueIndexTable[m_nActiveSampleQueue][i] = m_nActiveSamples;
 	}
 	m_SampleRequestQueuesStatus[m_nActiveSampleQueue] = 0;
diff --git a/src/audio/AudioManager.h b/src/audio/AudioManager.h
index ee8a23ef..8ac30ecb 100644
--- a/src/audio/AudioManager.h
+++ b/src/audio/AudioManager.h
@@ -247,16 +247,15 @@ public:
 	void AddSampleToRequestedQueue();                                                                                     // done
 	void AgeCrimes();                                                                                                     // done (inlined in vc)
 
-	void CalculateDistance(bool &condition, float dist); // done
-	bool CheckForAnAudioFileOnCD() const;
-	void ClearActiveSamples(); //done
-	void ClearMissionAudio(uint8 slot); //done
-	void ClearRequestedQueue();
-	uint32 ComputeDopplerEffectedFrequency(uint32 oldFreq, float position1, float position2,
-	                                      float speedMultiplier) const; //done
-	int32 ComputePan(float, CVector *);
-	uint8 ComputeVolume(uint8 emittingVolume, float soundIntensity, float distance) const;
-	int32 CreateEntity(eAudioType type, void *entity); //done
+	void CalculateDistance(bool &condition, float dist);                                                                   // done
+	//bool CheckForAnAudioFileOnCD() const;                                                                                // not exists in v1.0 and android
+	void ClearActiveSamples();                                                                                             // done
+	void ClearMissionAudio(uint8 slot);                                                                                    // done
+	void ClearRequestedQueue();                                                                                            // done (inlined in vc)
+	uint32 ComputeDopplerEffectedFrequency(uint32 oldFreq, float position1, float position2, float speedMultiplier) const; // done
+	int32 ComputePan(float, CVector *);                                                                                    // done
+	uint8 ComputeVolume(uint8 emittingVolume, float soundIntensity, float distance) const;                                 // done
+	int32 CreateEntity(eAudioType type, void *entity);                                                                     // done
 
 	void DestroyAllGameCreatedEntities();
 	void DestroyEntity(int32 id); //done (inlined in vc)
@@ -290,7 +289,7 @@ public:
 	void Initialise(); // done
 	void InitialisePoliceRadio();
 	void InitialisePoliceRadioZones();
-	void InterrogateAudioEntities();
+	void InterrogateAudioEntities(); // done
 	bool IsAudioInitialised() const;
 	bool IsMissionAudioSampleFinished(uint8 slot);
 	bool IsMP3RadioChannelAvailable() const; // done

From 6ff138ca76ddca2936f6148b0ca4f858a6b4c88e Mon Sep 17 00:00:00 2001
From: Roman Masanin <36927roma@gmail.com>
Date: Fri, 2 Oct 2020 05:03:29 +0300
Subject: [PATCH 6/7] fix build(bcs func CheckForAnAudioFileOnCD not used
 anymore)

---
 src/audio/DMAudio.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/audio/DMAudio.cpp b/src/audio/DMAudio.cpp
index 486daebf..f09f4256 100644
--- a/src/audio/DMAudio.cpp
+++ b/src/audio/DMAudio.cpp
@@ -171,7 +171,7 @@ cDMAudio::SetDynamicAcousticModelingStatus(uint8 status)
 bool
 cDMAudio::CheckForAnAudioFileOnCD(void)
 {
-	return AudioManager.CheckForAnAudioFileOnCD();
+	return 0; //exists only in android version, and used only in symbols
 }
 
 char

From 1991f9b3622c5e6f31a53b9c92bbe7c9b868bd9e Mon Sep 17 00:00:00 2001
From: Roman Masanin <36927roma@gmail.com>
Date: Fri, 2 Oct 2020 20:35:16 +0300
Subject: [PATCH 7/7] revert some changes and little fix

---
 src/audio/AudioManager.cpp | 19 +++++++------------
 src/audio/AudioManager.h   |  2 +-
 src/audio/DMAudio.cpp      |  2 +-
 3 files changed, 9 insertions(+), 14 deletions(-)

diff --git a/src/audio/AudioManager.cpp b/src/audio/AudioManager.cpp
index 638cafbf..93ac8857 100644
--- a/src/audio/AudioManager.cpp
+++ b/src/audio/AudioManager.cpp
@@ -411,19 +411,16 @@ cAudioManager::SetDynamicAcousticModelingStatus(uint8 status)
 	m_bDynamicAcousticModelingStatus = status!=0;
 }
 
-//bool
-//cAudioManager::CheckForAnAudioFileOnCD() const
-//{
-//	return SampleManager.CheckForAnAudioFileOnCD();
-//}
+bool
+cAudioManager::CheckForAnAudioFileOnCD() const
+{
+	return SampleManager.CheckForAnAudioFileOnCD();
+}
 
 uint8
 cAudioManager::GetCDAudioDriveLetter() const
 {
-	if (m_bIsInitialised)
-		return SampleManager.GetCDAudioDriveLetter();
-
-	return 0;
+	return SampleManager.GetCDAudioDriveLetter();
 }
 
 bool
@@ -945,8 +942,6 @@ void
 cAudioManager::ClearRequestedQueue()
 {
 	for (int32 i = 0; i < m_nActiveSamples; i++) {
-		if (i >= m_nActiveSamples)
-			break;
 		m_abSampleQueueIndexTable[m_nActiveSampleQueue][i] = m_nActiveSamples;
 	}
 	m_SampleRequestQueuesStatus[m_nActiveSampleQueue] = 0;
@@ -978,7 +973,7 @@ cAudioManager::ClearActiveSamples()
 		m_asActiveSamples[i].m_nCalculatedVolume = 0;
 		m_asActiveSamples[i].m_nReleasingVolumeDivider = 0;
 		m_asActiveSamples[i].m_nVolumeChange = -1;
-		m_asActiveSamples[i].m_vecPos = {0.0f, 0.0f, 0.0f};
+		m_asActiveSamples[i].m_vecPos = CVector(0.0f, 0.0f, 0.0f);
 		m_asActiveSamples[i].m_bReverbFlag = false;
 		m_asActiveSamples[i].m_nLoopsRemaining = 0;
 		m_asActiveSamples[i].m_bRequireReflection = false;
diff --git a/src/audio/AudioManager.h b/src/audio/AudioManager.h
index 8ac30ecb..267260c5 100644
--- a/src/audio/AudioManager.h
+++ b/src/audio/AudioManager.h
@@ -248,7 +248,7 @@ public:
 	void AgeCrimes();                                                                                                     // done (inlined in vc)
 
 	void CalculateDistance(bool &condition, float dist);                                                                   // done
-	//bool CheckForAnAudioFileOnCD() const;                                                                                // not exists in v1.0 and android
+	bool CheckForAnAudioFileOnCD() const;                                                                                  // done
 	void ClearActiveSamples();                                                                                             // done
 	void ClearMissionAudio(uint8 slot);                                                                                    // done
 	void ClearRequestedQueue();                                                                                            // done (inlined in vc)
diff --git a/src/audio/DMAudio.cpp b/src/audio/DMAudio.cpp
index f09f4256..486daebf 100644
--- a/src/audio/DMAudio.cpp
+++ b/src/audio/DMAudio.cpp
@@ -171,7 +171,7 @@ cDMAudio::SetDynamicAcousticModelingStatus(uint8 status)
 bool
 cDMAudio::CheckForAnAudioFileOnCD(void)
 {
-	return 0; //exists only in android version, and used only in symbols
+	return AudioManager.CheckForAnAudioFileOnCD();
 }
 
 char