Import Cai1Hsu/re3 @ miami (reVC / GTA:VC decompilation)HEADmiami

Snapshot import (no upstream history) into git.ancap.in.ua/claude, per @lzcnt.
Source: https://github.com/Cai1Hsu/re3 branch miami.

1 files changed, 1049 insertions, 0 deletions

diff --git a/src/vehicles/Heli.cpp b/src/vehicles/Heli.cpp
new file mode 100644
index 0000000..bf14416
--- /dev/null
+++ b/src/vehicles/Heli.cpp
@@ -0,0 +1,1049 @@
+#include "common.h"
+#include "main.h"
+
+#include "General.h"
+#include "Darkel.h"
+#include "Stats.h"
+#include "SurfaceTable.h"
+#include "ModelIndices.h"
+#include "Streaming.h"
+#include "Camera.h"
+#include "VisibilityPlugins.h"
+#include "ZoneCull.h"
+#include "Particle.h"
+#include "Shadows.h"
+#include "Coronas.h"
+#include "Explosion.h"
+#include "WindModifiers.h"
+#include "Timecycle.h"
+#include "TempColModels.h"
+#include "World.h"
+#include "WaterLevel.h"
+#include "Population.h"
+#include "PlayerPed.h"
+#include "CopPed.h"
+#include "Wanted.h"
+#include "DMAudio.h"
+#include "Object.h"
+#include "HandlingMgr.h"
+#include "Ropes.h"
+#include "Heli.h"
+#ifdef FIX_BUGS
+#include "Replay.h"
+#endif
+
+enum
+{
+	HELI_STATUS_HOVER,
+	HELI_STATUS_CHASE_PLAYER,
+	HELI_STATUS_FLY_AWAY,
+	HELI_STATUS_SHOT_DOWN,
+	HELI_STATUS_HOVER2,
+};
+
+CHeli *CHeli::pHelis[NUM_HELIS];
+int16 CHeli::NumRandomHelis;
+uint32 CHeli::TestForNewRandomHelisTimer;
+bool CHeli::CatalinaHeliOn;
+bool CHeli::CatalinaHasBeenShotDown;
+bool CHeli::ScriptHeliOn;
+
+CHeli::CHeli(int32 id, uint8 CreatedBy)
+ : CVehicle(CreatedBy)
+{
+	int i;
+
+	CVehicleModelInfo *mi = (CVehicleModelInfo*)CModelInfo::GetModelInfo(id);
+	m_vehType = VEHICLE_TYPE_HELI;
+	pHandling = mod_HandlingManager.GetHandlingData((tVehicleType)mi->m_handlingId);
+	SetModelIndex(id);
+	m_heliStatus = HELI_STATUS_HOVER;
+	m_pathState = 0;
+
+	m_fMass = 100000000.0f;
+	m_fTurnMass = 100000000.0f;
+	m_fAirResistance = 0.9994f;
+	m_fElasticity = 0.05f;
+
+	m_nHeliId = 0;
+	m_fRotorRotation = 0.0f;
+	m_nBulletDamage = 0;
+	m_fAngularSpeed = 0.0f;
+	m_fRotation = 0.0f;
+
+	m_numSwat = 4;
+
+	m_nSearchLightTimer = CTimer::GetTimeInMilliseconds();
+	for(i = 0; i < 6; i++){
+		m_aSearchLightHistoryX[i] = 0.0f;
+		m_aSearchLightHistoryY[i] = 0.0f;
+	}
+
+	for(i = 0; i < 8; i++)
+		m_fHeliDustZ[i] = -50.0f;
+
+	m_nPoliceShoutTimer = CTimer::GetTimeInMilliseconds();
+	SetStatus(STATUS_HELI);
+	m_bTestRight = true;
+	m_fTargetOffset = 0.0f;
+	m_fSearchLightX = m_fSearchLightY = 0.0f;
+
+	m_aSwatState[0] = m_aSwatState[1] = m_aSwatState[2] = m_aSwatState[3] = 0;
+
+	// BUG: not in game but gets initialized to CDCDCDCD in debug
+	m_nLastShotTime = 0;
+}
+
+void
+CHeli::SetModelIndex(uint32 id)
+{
+	int i;
+
+	CVehicle::SetModelIndex(id);
+	for(i = 0; i < NUM_HELI_NODES; i++)
+		m_aHeliNodes[i] = nil;
+	CClumpModelInfo::FillFrameArray(GetClump(), m_aHeliNodes);
+}
+
+static float CatalinaTargetX[7] = { -478.0, -677.0, -907.0, -1095.0, -1152.0, -1161.0, -1161.0 };
+static float CatalinaTargetY[7] = { 227.0, 206.0, 210.0, 242.0, 278.0, 341.0, 341.0 };
+static float CatalinaTargetZ[7] = { 77.0, 66.0, 60.0, 53.0, 51.0, 46.0, 30.0 };
+static float DamPathX[6] = { -1191.0, -1176.0, -1128.0, -1072.0, -1007.0, -971.0 };
+static float DamPathY[6] = { 350.0, 388.0, 429.0, 447.0, 449.0, 416.0 };
+static float DamPathZ[6] = { 42.0, 37.0, 28.0, 28.0, 31.0, 33.0 };
+static float ShortPathX[4] = { -974.0, -1036.0, -1112.0, -1173.0 };
+static float ShortPathY[4] = { 340.0, 312.0, 317.0, 294.0 };
+static float ShortPathZ[4] = { 41.0, 38.0, 32.0, 39.0 };
+static float LongPathX[7] = { -934.0, -905.0, -906.0, -1063.0, -1204.0, -1233.0, -1207.0 };
+static float LongPathY[7] = { 371.0, 362.0, 488.0, 548.0, 451.0, 346.0, 308.0 };
+static float LongPathZ[7] = { 57.0, 90.0, 105.0, 100.0, 81.0, 79.0, 70.0 };
+
+static int PathPoint;
+
+void
+CHeli::ProcessControl(void)
+{
+	int i;
+
+	if(gbModelViewer)
+		return;
+
+	CWindModifiers::RegisterOne(GetPosition(), 1);
+
+	// Find target
+	CVector target(0.0f, 0.0f, 0.0f);
+	CVector2D vTargetDist;
+	if(m_heliType == HELI_TYPE_CATALINA && m_heliStatus != HELI_STATUS_SHOT_DOWN){
+		switch(m_pathState){
+		case 0:
+		case 1:
+		case 2:
+		case 3:
+		case 4:
+		case 5:
+			target.x = CatalinaTargetX[m_pathState];
+			target.y = CatalinaTargetY[m_pathState];
+			target.z = CatalinaTargetZ[m_pathState];
+			if((target - GetPosition()).Magnitude() < 9.0f)
+				m_pathState++;
+			break;
+		case 6:
+			target.x = CatalinaTargetX[m_pathState];
+			target.y = CatalinaTargetY[m_pathState];
+			target.z = CatalinaTargetZ[m_pathState];
+			if(GetPosition().z > 31.55f)
+				break;
+			m_pathState = 7;
+			GetMatrix().GetPosition().z = 31.55f;
+			m_vecMoveSpeed = CVector(0.0f, 0.0f, 0.0f);
+			break;
+		case 7:
+			GetMatrix().GetPosition().z = 31.55f;
+			target = GetPosition();
+			break;
+
+
+		// Take off
+		case 8:
+			target.x = GetPosition().x;
+			target.y = GetPosition().y;
+			target.z = 74.0f;
+			if(GetPosition().z < 40.0f)
+				break;
+			PathPoint = 2;
+			m_pathState = 9;
+			break;
+		// Circle around dam
+		case 9:
+			target.x = DamPathX[PathPoint];
+			target.y = DamPathY[PathPoint];
+			target.z = DamPathZ[PathPoint];
+			if((target - GetPosition()).Magnitude() < 9.0f){
+				PathPoint++;
+				if(PathPoint >= 6){
+					m_pathState = 10;
+					PathPoint = 0;
+				}
+			}
+			break;
+		case 10:
+			target.x = ShortPathX[PathPoint];
+			target.y = ShortPathY[PathPoint];
+			target.z = ShortPathZ[PathPoint];
+			if((target - GetPosition()).Magnitude() < 9.0f){
+				PathPoint++;
+				if(PathPoint >= 3){
+					m_pathState = 9;
+					PathPoint = 1;
+				}
+			}
+			break;
+		// how do we get here?
+		case 11:
+			target.x = LongPathX[PathPoint];
+			target.y = LongPathY[PathPoint];
+			target.z = LongPathZ[PathPoint];
+			if((target - GetPosition()).Magnitude() < 9.0f){
+				PathPoint++;
+				if(PathPoint >= 7){
+					m_pathState = 9;
+					PathPoint = 0;
+				}
+			}
+			break;
+
+
+		// Fly away
+		case 12:
+			target.x = GetPosition().x;
+			target.y = GetPosition().y;
+			target.z = 200.0f;
+			break;
+		}
+
+		vTargetDist = target - GetPosition();
+		m_fTargetZ = target.z;
+		if(m_pathState == 6){
+			GetMatrix().GetPosition().x = GetMatrix().GetPosition().x*0.99f + target.x*0.01f;
+			GetMatrix().GetPosition().y = GetMatrix().GetPosition().y*0.99f + target.y*0.01f;
+		}
+	}else{
+		vTargetDist = FindPlayerCoors() - GetPosition();
+		m_fTargetZ = FindPlayerCoors().z;
+
+		// Heli flies away to (0, 0)
+		if(m_heliStatus == HELI_STATUS_FLY_AWAY && GetPosition().z > 20.0f){
+			vTargetDist.x = 0.0f - GetPosition().x;
+			vTargetDist.y = 0.0f - GetPosition().y;
+		}
+
+		float groundZ;
+		switch(m_heliStatus){
+		case HELI_STATUS_HOVER:
+			groundZ = CWorld::FindGroundZFor3DCoord(GetPosition().x, GetPosition().y, 1000.0f, nil);
+			m_fTargetZ = Max(groundZ, m_fTargetZ) + 8.0f;
+			break;
+		case HELI_STATUS_SHOT_DOWN:
+			groundZ = CWorld::FindGroundZFor3DCoord(GetPosition().x, GetPosition().y, 1000.0f, nil);
+			m_fTargetZ = Max(groundZ, m_fTargetZ) + 8.0f + m_fTargetOffset;
+			break;
+		case HELI_STATUS_HOVER2:
+			groundZ = CWorld::FindGroundZFor3DCoord(GetPosition().x, GetPosition().y, 1000.0f, nil);
+			m_fTargetZ = Max(groundZ, m_fTargetZ) + 8.0f + m_fTargetOffset;
+			break;
+		default:
+			groundZ = CWorld::FindGroundZFor3DCoord(GetPosition().x, GetPosition().y, 1000.0f, nil);
+			m_fTargetZ = Max(groundZ, m_fTargetZ) + 12.0f;
+			break;
+		}
+
+		// Move up if too low
+		if(GetPosition().z - 2.0f < groundZ && m_heliStatus != HELI_STATUS_SHOT_DOWN)
+			m_vecMoveSpeed.z += CTimer::GetTimeStep()*0.01f;
+		m_vecMoveSpeed.z = clamp(m_vecMoveSpeed.z, -0.3f, 0.3f);
+	}
+
+	float fTargetDist = vTargetDist.Magnitude();
+
+	switch(m_heliStatus){
+	case HELI_STATUS_HOVER:
+	case HELI_STATUS_HOVER2:{
+		float targetHeight;
+		if(m_heliType == HELI_TYPE_CATALINA)
+			targetHeight = 8.0f;
+		else
+			targetHeight = 40.0f - m_nHeliId*10.0f;
+		if(fTargetDist > targetHeight)
+			m_heliStatus = HELI_STATUS_CHASE_PLAYER;
+		}
+		if(m_numSwat)
+			SendDownSwat();
+		break;
+	case HELI_STATUS_CHASE_PLAYER:{
+		float targetHeight;
+		if(m_heliType == HELI_TYPE_CATALINA)
+			targetHeight = 4.0f;
+		else
+			targetHeight = 30.0f - m_nHeliId*7.5f;
+		if(fTargetDist < 1.0f ||
+		   fTargetDist < targetHeight && CWorld::GetIsLineOfSightClear(GetPosition(), FindPlayerCoors(), true, false, false, false, false, false))
+			m_heliStatus = HELI_STATUS_HOVER;
+		}
+		break;
+	}
+
+	// Find xy speed
+	float speed;
+	if(fTargetDist > 100.0f)
+		speed = 1.0f;
+	else if(fTargetDist > 75.0f)
+		speed = 0.7f;
+	else
+		speed = 0.4f;
+	if(m_heliStatus == HELI_STATUS_HOVER || m_heliStatus == HELI_STATUS_HOVER2 || m_heliStatus == HELI_STATUS_SHOT_DOWN)
+		speed = 0.0f;
+
+	if(fTargetDist != 0.0f)
+		vTargetDist /= fTargetDist;
+	else
+		vTargetDist.x = 1.0f;
+	CVector2D targetSpeed = vTargetDist * speed;
+
+	if(m_heliStatus == HELI_STATUS_HOVER2 || m_heliStatus == HELI_STATUS_SHOT_DOWN){
+		bool force = !!((CTimer::GetFrameCounter() + m_randomSeed) & 8);
+		if(m_bTestRight){
+			if(force || CWorld::TestSphereAgainstWorld(GetPosition() + 4.0f*GetRight(), 2.0f, this, true, false, false, false, false, false) == nil){
+				if(m_heliStatus == HELI_STATUS_SHOT_DOWN){
+					m_fTargetOffset -= CTimer::GetTimeStep()*0.05f;
+					targetSpeed.x -= -vTargetDist.x*0.15f;
+					targetSpeed.y -= vTargetDist.y*0.15f;
+				}else{
+					targetSpeed.x -= -vTargetDist.x*0.05f;
+					targetSpeed.y -= vTargetDist.y*0.05f;
+				}
+			}else{
+				m_bTestRight = false;
+				if(m_heliStatus == HELI_STATUS_HOVER2)
+					m_fTargetOffset += 5.0f;
+				else
+					m_fTargetOffset -= 5.0f;
+			}
+		}else{
+			if(force || CWorld::TestSphereAgainstWorld(GetPosition() - 4.0f*GetRight(), 2.0f, this, true, false, false, false, false, false) == nil){
+				if(m_heliStatus == HELI_STATUS_SHOT_DOWN){
+					m_fTargetOffset -= CTimer::GetTimeStep()*0.05f;
+					targetSpeed.x += -vTargetDist.x*0.15f;
+					targetSpeed.y += vTargetDist.y*0.15f;
+				}else{
+					targetSpeed.x += -vTargetDist.x*0.05f;
+					targetSpeed.y += vTargetDist.y*0.05f;
+				}
+			}else{
+				m_bTestRight = true;
+				if(m_heliStatus == HELI_STATUS_HOVER2)
+					m_fTargetOffset += 5.0f;
+				else
+					m_fTargetOffset -= 5.0f;
+			}
+		}
+
+		if(m_fTargetOffset > 30.0f)
+			m_fTargetOffset = 30.0f;
+
+		if(m_heliStatus == HELI_STATUS_SHOT_DOWN && force){
+			if(CWorld::TestSphereAgainstWorld(GetPosition() + 1.5f*GetForward(), 2.0f, this, true, false, false, false, false, false) ||
+			   CWorld::TestSphereAgainstWorld(GetPosition() - 1.5f*GetForward(), 2.0f, this, true, false, false, false, false, false))
+				m_nExplosionTimer = CTimer::GetPreviousTimeInMilliseconds();
+		}
+	}else
+		if(m_fTargetOffset >= 2.0f)
+			m_fTargetOffset -= 2.0f;
+
+	CVector2D speedDir = targetSpeed - m_vecMoveSpeed;
+	float speedDiff = speedDir.Magnitude();
+	if(speedDiff != 0.0f)
+		speedDir /= speedDiff;
+	else
+		speedDir.x = 1.0f;
+	float speedInc = CTimer::GetTimeStep()*0.002f;
+	if(speedDiff < speedInc){
+		m_vecMoveSpeed.x = targetSpeed.x;
+		m_vecMoveSpeed.y = targetSpeed.y;
+	}else{
+		m_vecMoveSpeed.x += speedDir.x*speedInc;
+		m_vecMoveSpeed.y += speedDir.y*speedInc;
+	}
+	GetMatrix().GetPosition().x += m_vecMoveSpeed.x*CTimer::GetTimeStep();
+	GetMatrix().GetPosition().y += m_vecMoveSpeed.y*CTimer::GetTimeStep();
+
+	// Find z target
+	if(m_heliStatus == HELI_STATUS_FLY_AWAY)
+		m_fTargetZ = 1000.0f;
+	if((CTimer::GetTimeInMilliseconds() + 800*m_nHeliId) & 0x800)
+		m_fTargetZ += 2.0f;
+	m_fTargetZ += m_nHeliId*5.0f;
+
+	// Find z speed
+	float targetSpeedZ = (m_fTargetZ - GetPosition().z)*0.01f;
+	float speedDiffZ = targetSpeedZ - m_vecMoveSpeed.z;
+	float speedIncZ = CTimer::GetTimeStep()*0.001f;
+	if(m_heliStatus == HELI_STATUS_FLY_AWAY)
+		speedIncZ *= 1.5f;
+	if(Abs(speedDiffZ) < speedIncZ)
+		m_vecMoveSpeed.z = targetSpeedZ;
+	else if(speedDiffZ < 0.0f)
+		m_vecMoveSpeed.z -= speedIncZ;
+	else
+		m_vecMoveSpeed.z += speedIncZ*1.5f;
+	GetMatrix().GetPosition().z += m_vecMoveSpeed.z*CTimer::GetTimeStep();
+
+	// Find angular speed
+	float targetAngularSpeed;
+	m_fAngularSpeed *= Pow(0.995f, CTimer::GetTimeStep());
+	if(fTargetDist < 8.0f)
+		targetAngularSpeed = 0.0f;
+	else{
+		float rotationDiff = CGeneral::GetATanOfXY(vTargetDist.x, vTargetDist.y) - m_fRotation;
+		while(rotationDiff < -3.14f) rotationDiff += 6.28f;
+		while(rotationDiff > 3.14f) rotationDiff -= 6.28f;
+		if(Abs(rotationDiff) > 0.4f){
+			if(rotationDiff < 0.0f)
+				targetAngularSpeed = -0.2f;
+			else
+				targetAngularSpeed = 0.2f;
+		}else
+			targetAngularSpeed = 0.0f;
+	}
+	float angularSpeedDiff = targetAngularSpeed - m_fAngularSpeed;
+	float angularSpeedInc = CTimer::GetTimeStep()*0.0001f;
+	if(Abs(angularSpeedDiff) < angularSpeedInc)
+		m_fAngularSpeed = targetAngularSpeed;
+	else if(angularSpeedDiff < 0.0f)
+		m_fAngularSpeed -= angularSpeedInc;
+	else
+		m_fAngularSpeed += angularSpeedInc;
+	m_fRotation += m_fAngularSpeed * CTimer::GetTimeStep();
+
+	// Set matrix
+	CVector up(3.0f*m_vecMoveSpeed.x, 3.0f*m_vecMoveSpeed.y, 1.0f);
+	up.Normalise();
+	CVector fwd(-Cos(m_fRotation), -Sin(m_fRotation), 0.0f);	// not really forward
+	CVector right = CrossProduct(up, fwd);
+	fwd = CrossProduct(up, right);
+	GetRight() = right;
+	GetForward() = fwd;
+	GetUp() = up;
+
+	// Search light and shooting
+	if(m_heliStatus == HELI_STATUS_FLY_AWAY || m_heliType == HELI_TYPE_CATALINA || CCullZones::PlayerNoRain())
+		m_fSearchLightIntensity = 0.0f;
+	else {
+		// Update search light history once every 1000ms
+		int timeDiff = CTimer::GetTimeInMilliseconds() - m_nSearchLightTimer;
+		while (timeDiff > 1000) {
+			for (i = 5; i > 0; i--) {
+				m_aSearchLightHistoryX[i] = m_aSearchLightHistoryX[i - 1];
+				m_aSearchLightHistoryY[i] = m_aSearchLightHistoryY[i - 1];
+			}
+			m_aSearchLightHistoryX[0] = FindPlayerCoors().x + FindPlayerSpeed().x * 50.0f * (m_nHeliId + 2);
+			m_aSearchLightHistoryY[0] = FindPlayerCoors().y + FindPlayerSpeed().y * 50.0f * (m_nHeliId + 2);
+
+			timeDiff -= 1000;
+			m_nSearchLightTimer += 1000;
+		}
+		assert(timeDiff <= 1000);
+		float f1 = timeDiff / 1000.0f;
+		float f2 = 1.0f - f1;
+		m_fSearchLightX = m_aSearchLightHistoryX[m_nHeliId + 2] * f2 + m_aSearchLightHistoryX[m_nHeliId + 2 - 1] * f1;
+		m_fSearchLightY = m_aSearchLightHistoryY[m_nHeliId + 2] * f2 + m_aSearchLightHistoryY[m_nHeliId + 2 - 1] * f1;
+
+		float searchLightDist = (CVector2D(m_fSearchLightX, m_fSearchLightY) - GetPosition()).Magnitude();
+		if (searchLightDist > 60.0f)
+			m_fSearchLightIntensity = 0.0f;
+		else if (searchLightDist < 40.0f)
+			m_fSearchLightIntensity = 1.0f;
+		else
+			m_fSearchLightIntensity = 1.0f - (40.0f - searchLightDist) / (60.0f-40.0f);
+
+		if (m_fSearchLightIntensity < 0.9f || sq(FindPlayerCoors().x - m_fSearchLightX) + sq(FindPlayerCoors().y - m_fSearchLightY) > sq(7.0f))
+			m_nShootTimer = CTimer::GetTimeInMilliseconds();
+		else if (CTimer::GetTimeInMilliseconds() > m_nPoliceShoutTimer) {
+			DMAudio.PlayOneShot(m_audioEntityId, SOUND_PED_HELI_PLAYER_FOUND, 0.0f);
+			m_nPoliceShoutTimer = CTimer::GetTimeInMilliseconds() + 4500 + (CGeneral::GetRandomNumber() & 0xFFF);
+		}
+#ifdef FIX_BUGS
+		if (!CReplay::IsPlayingBack())
+#endif
+		{
+			// Shoot
+			int shootTimeout;
+			if (m_heliType == HELI_TYPE_RANDOM) {
+				switch (FindPlayerPed()->m_pWanted->GetWantedLevel()) {
+				case 0:
+				case 1:
+				case 2: shootTimeout = 999999; break;
+				case 3: shootTimeout = 10000; break;
+				case 4: shootTimeout = 5000; break;
+				case 5: shootTimeout = 3500; break;
+				case 6: shootTimeout = 2000; break;
+				}
+				if (CCullZones::NoPolice())
+					shootTimeout /= 2;
+			}
+			else
+				shootTimeout = 1500;
+
+			if (FindPlayerPed()->m_pWanted->IsIgnored())
+				m_nShootTimer = CTimer::GetTimeInMilliseconds();
+			else {
+				// Check if line of sight is clear
+				if (CTimer::GetTimeInMilliseconds() > m_nShootTimer + shootTimeout &&
+					CTimer::GetPreviousTimeInMilliseconds() <= m_nShootTimer + shootTimeout) {
+					if (CWorld::GetIsLineOfSightClear(GetPosition(), FindPlayerCoors(), true, false, false, false, false, false)) {
+						if (m_heliStatus == HELI_STATUS_HOVER2)
+							m_heliStatus = HELI_STATUS_HOVER;
+					}
+					else {
+						m_nShootTimer = CTimer::GetTimeInMilliseconds();
+						if (m_heliStatus == HELI_STATUS_HOVER)
+							m_heliStatus = HELI_STATUS_HOVER2;
+					}
+				}
+
+				// Shoot!
+				if (CTimer::GetTimeInMilliseconds() > m_nShootTimer + shootTimeout &&
+					CTimer::GetTimeInMilliseconds() > m_nLastShotTime + 200) {
+					CVector shotTarget = FindPlayerCoors();
+					// some inaccuracy
+					shotTarget.x += ((CGeneral::GetRandomNumber() & 0xFF) - 128) / 50.0f;
+					shotTarget.y += ((CGeneral::GetRandomNumber() & 0xFF) - 128) / 50.0f;
+					CVector direction = FindPlayerCoors() - GetPosition();
+					direction.Normalise();
+					shotTarget += 3.0f * direction;
+					CVector shotSource = GetPosition();
+					shotSource += 3.0f * direction;
+					FireOneInstantHitRound(&shotSource, &shotTarget, 20);
+					DMAudio.PlayOneShot(m_audioEntityId, SOUND_WEAPON_SHOT_FIRED, 0.0f);
+					m_nLastShotTime = CTimer::GetTimeInMilliseconds();
+				}
+			}
+		}
+	}
+
+	// Process ropes
+	for(i = 0; i < 4; i++){
+		if(m_aSwatState[i] == 0)
+			continue;
+
+		m_aSwatState[i]--;
+		CRopes::RegisterRope((uintptr)this + i, GetMatrix()*FindSwatPositionRelativeToHeli(i), false);
+		if(m_aSwatState[i] == 0){
+			CVector speed = Multiply3x3(GetMatrix(), 0.05f*FindSwatPositionRelativeToHeli(i));
+			speed.z = 0.0f;
+			CRopes::SetSpeedOfTopNode((uintptr)this + i, speed);
+		}
+	}
+
+	RemoveAndAdd();
+	bIsInSafePosition = true;
+	GetMatrix().UpdateRW();
+	UpdateRwFrame();
+}
+
+void
+CHeli::PreRender(void)
+{
+	float radius = (GetPosition().z - FindPlayerCoors().z - 10.0f - 1.0f) * 0.3f + 10.0f;
+	HeliDustGenerate(this, radius, FindPlayerCoors().z, Max(16.0f - 4.0f*CTimer::GetTimeStep(), 2.0f));
+	CShadows::StoreShadowForVehicle(this, VEH_SHD_TYPE_HELI);
+}
+
+void
+CHeli::Render(void)
+{
+	CMatrix mat;
+	CVector pos;
+
+	mat.Attach(RwFrameGetMatrix(m_aHeliNodes[HELI_TOPROTOR]));
+	pos = mat.GetPosition();
+	mat.SetRotateZ(m_fRotorRotation);
+	mat.Translate(pos);
+	mat.UpdateRW();
+
+	m_fRotorRotation += 3.14f/6.5f;
+	if(m_fRotorRotation > 6.28f)
+		m_fRotorRotation -= 6.28f;
+
+	mat.Attach(RwFrameGetMatrix(m_aHeliNodes[HELI_BACKROTOR]));
+	pos = mat.GetPosition();
+	mat.SetRotateX(m_fRotorRotation);
+	mat.Translate(pos);
+	mat.UpdateRW();
+
+	CEntity::Render();
+}
+
+void
+CHeli::PreRenderAlways(void)
+{
+	CVector shadowPos(m_fSearchLightX, m_fSearchLightY, GetPosition().z);
+	if(m_fSearchLightIntensity > 0.0f){
+		CShadows::StoreShadowToBeRendered(SHADOWTYPE_ADDITIVE, gpShadowExplosionTex, &shadowPos,
+			6.0f, 0.0f, 0.0f, -6.0f,
+			80*m_fSearchLightIntensity, 80*m_fSearchLightIntensity, 80*m_fSearchLightIntensity, 80*m_fSearchLightIntensity,
+			50.0f, true, 1.0f, nil, false);
+
+		CVector front = GetMatrix() * CVector(0.0f, 7.0f, 0.0f);
+		CVector toPlayer = FindPlayerCoors() - front;
+		toPlayer.Normalise();
+		float intensity = m_fSearchLightIntensity*sq(CTimeCycle::GetSpriteBrightness());
+		if(DotProduct(toPlayer, TheCamera.GetForward()) < -0.8f)
+			CCoronas::RegisterCorona((uintptr)this, 255*intensity, 255*intensity, 255*intensity, 255,
+				front, 10.0f, 60.0f, CCoronas::TYPE_STAR,
+				CCoronas::FLARE_HEADLIGHTS, CCoronas::REFLECTION_OFF, CCoronas::LOSCHECK_OFF, CCoronas::STREAK_OFF, 0.0f);
+		else
+			CCoronas::RegisterCorona((uintptr)this, 200*intensity, 200*intensity, 200*intensity, 255,
+				front, 8.0f, 60.0f, CCoronas::TYPE_STAR,
+				CCoronas::FLARE_HEADLIGHTS, CCoronas::REFLECTION_OFF, CCoronas::LOSCHECK_OFF, CCoronas::STREAK_OFF, 0.0f);
+	}
+
+	CVector back = GetMatrix() * CVector(0.0f, -9.0f, 0.0f);
+	if(CTimer::GetTimeInMilliseconds() & 0x100)
+		CCoronas::RegisterCorona((uintptr)this + 2, 255, 0, 0, 255,
+			back, 1.0f, 60.0f, CCoronas::TYPE_STAR,
+			CCoronas::FLARE_NONE, CCoronas::REFLECTION_OFF, CCoronas::LOSCHECK_OFF, CCoronas::STREAK_OFF, 0.0f);
+	else
+		CCoronas::RegisterCorona((uintptr)this + 2, 0, 0, 0, 255,
+			back, 1.0f, 60.0f, CCoronas::TYPE_STAR,
+			CCoronas::FLARE_NONE, CCoronas::REFLECTION_OFF, CCoronas::LOSCHECK_OFF, CCoronas::STREAK_OFF, 0.0f);
+}
+
+RwObject*
+GetHeliAtomicObjectCB(RwObject *object, void *data)
+{
+	RpAtomic *atomic = (RpAtomic*)object;
+	assert(RwObjectGetType(object) == rpATOMIC);
+	if(RpAtomicGetFlags(atomic) & rpATOMICRENDER)
+		*(RpAtomic**)data = atomic;
+	return object;
+}
+
+CObject*
+CHeli::SpawnFlyingComponent(int32 component)
+{
+	RpAtomic *atomic;
+	RwFrame *frame;
+	RwMatrix *matrix;
+	CObject *obj;
+
+	if(m_aHeliNodes[component] == nil)
+		return nil;
+
+	atomic = nil;
+	RwFrameForAllObjects(m_aHeliNodes[component], GetHeliAtomicObjectCB, &atomic);
+	if(atomic == nil)
+		return nil;
+
+	obj = new CObject;
+	if(obj == nil)
+		return nil;
+
+	obj->SetModelIndexNoCreate(MI_CAR_WHEEL);
+	// object needs base model
+	obj->RefModelInfo(GetModelIndex());
+
+	// create new atomic
+	matrix = RwFrameGetLTM(m_aHeliNodes[component]);
+	frame = RwFrameCreate();
+	atomic = RpAtomicClone(atomic);
+	*RwFrameGetMatrix(frame) = *matrix;
+	RpAtomicSetFrame(atomic, frame);
+	CVisibilityPlugins::SetAtomicRenderCallback(atomic, nil);
+	obj->AttachToRwObject((RwObject*)atomic);
+	obj->bDontStream = true;
+
+	// init object
+	obj->m_fMass = 10.0f;
+	obj->m_fTurnMass = 25.0f;
+	obj->m_fAirResistance = 0.99f;
+	obj->m_fElasticity = 0.1f;
+	obj->m_fBuoyancy = obj->m_fMass*GRAVITY/0.75f;
+	obj->ObjectCreatedBy = TEMP_OBJECT;
+	obj->SetIsStatic(false);
+	obj->bIsPickup = false;
+
+	// life time
+	CObject::nNoTempObjects++;
+	if(component == HELI_TOPROTOR)
+		obj->m_nEndOfLifeTime = CTimer::GetTimeInMilliseconds() + 1000;
+	else
+		obj->m_nEndOfLifeTime = CTimer::GetTimeInMilliseconds() + 3000;
+
+	obj->m_vecMoveSpeed = m_vecMoveSpeed;
+	if(obj->m_vecMoveSpeed.z > 0.0f)
+		obj->m_vecMoveSpeed.z = 0.3f;
+	else
+		obj->m_vecMoveSpeed.z = 0.0f;
+
+	obj->m_vecTurnSpeed = m_vecTurnSpeed*2.0f;
+
+	if(component == HELI_BACKROTOR)
+		obj->m_vecTurnSpeed.x = 0.5f;
+	else if(component == HELI_TOPROTOR || component == HELI_TOPKNOT)
+		obj->m_vecTurnSpeed.z = 0.5f;
+	else
+		obj->m_vecTurnSpeed.y = 0.5f;
+
+	obj->bRenderScorched = true;
+
+	CWorld::Add(obj);
+
+	atomic = nil;
+	RwFrameForAllObjects(m_aHeliNodes[component], GetHeliAtomicObjectCB, &atomic);
+	if(atomic)
+		RpAtomicSetFlags(atomic, 0);
+
+	return obj;
+}
+
+CVector
+CHeli::FindSwatPositionRelativeToHeli(int n)
+{
+	switch(n){
+	case 0: return CVector(-1.2f, -1.0f, -0.5f);
+	case 1: return CVector( 1.2f, -1.0f, -0.5f);
+	case 2: return CVector(-1.2f,  1.0f, -0.5f);
+	case 3: return CVector( 1.2f,  1.0f, -0.5f);
+	default: return CVector(0.0f, 0.0f, 0.0f);
+	}
+}
+
+bool
+CHeli::SendDownSwat(void)
+{
+	if(m_numSwat == 0 || !CStreaming::HasModelLoaded(MI_SWAT) ||
+	   CGeneral::GetRandomNumber() & 0x7F || (GetPosition() - FindPlayerCoors()).Magnitude() > 50.0f)
+		return false;
+
+	CMatrix mat(GetMatrix());
+	CVector pos = Multiply3x3(mat, FindSwatPositionRelativeToHeli(m_numSwat-1)) + GetPosition();
+
+	float groundZ = CWorld::FindGroundZFor3DCoord(pos.x, pos.y, pos.z, nil);
+	if(Abs(FindPlayerCoors().z - groundZ) < 2.5f && CRopes::RegisterRope((uintptr)this + m_numSwat-1, pos, false)){
+		CCopPed *swat = (CCopPed*)CPopulation::AddPed(PEDTYPE_COP, COP_HELI_SWAT, pos);
+		swat->bUsesCollision = false;
+		swat->m_pRopeEntity = this;
+		RegisterReference(&swat->m_pRopeEntity);
+		m_numSwat--;
+		swat->m_nRopeID = (uintptr)this + m_numSwat;
+		m_aSwatState[m_numSwat] = 255;
+		CAnimManager::BlendAnimation(swat->GetClump(), ASSOCGRP_STD, ANIM_STD_ABSEIL, 4.0f);
+		return true;
+	}
+	return false;
+}
+
+
+void
+CHeli::InitHelis(void)
+{
+	int i;
+
+	NumRandomHelis = 0;
+	TestForNewRandomHelisTimer = 0;
+	CatalinaHeliOn = false;
+	ScriptHeliOn = false;
+	for(i = 0; i < NUM_HELIS; i++)
+		pHelis[i] = nil;
+
+	((CVehicleModelInfo*)CModelInfo::GetModelInfo(MI_CHOPPER))->SetColModel(&CTempColModels::ms_colModelPed1);
+}
+
+CHeli*
+CHeli::GenerateHeli(bool catalina)
+{
+	CHeli *heli;
+	CVector heliPos;
+	int i;
+
+	if(catalina)
+		assert(0 && "can't create catalina's heli");
+	else
+		heli = new CHeli(MI_CHOPPER, PERMANENT_VEHICLE);
+
+	if(catalina)
+		heliPos = CVector(-224.0f, 201.0f, 83.0f);
+	else{
+		heliPos = FindPlayerCoors();
+		float angle = (float)(CGeneral::GetRandomNumber() & 0xFF)/0x100 * 6.28f;
+		heliPos.x += 250.0f*Sin(angle);
+		heliPos.y += 250.0f*Cos(angle);
+		if(heliPos.x < -2000.0f-400.0f || heliPos.x > 2000.0f-400.0f || heliPos.y < -2000.0f || heliPos.y > 2000.0f){
+			heliPos = FindPlayerCoors();
+			heliPos.x -= 250.0f*Sin(angle);
+			heliPos.y -= 250.0f*Cos(angle);
+		}
+		heliPos.z += 50.0f;
+	}
+	heli->GetMatrix().SetTranslate(heliPos);
+	if(catalina)
+		heli->GetMatrix().SetRotateZOnly(DEGTORAD(270.0f));	// game actually uses 3.14 here
+
+	heli->SetStatus(STATUS_ABANDONED);
+	heli->bIsLocked = true;
+
+	int id = -1;
+	bool found = false;
+	while(!found){
+		id++;
+		found = true;
+		for(i = 0; i < 4; i++)
+			if(pHelis[i] && pHelis[i]->m_nHeliId == id)
+				found = false;
+	}
+	heli->m_nHeliId = id;
+
+	CWorld::Add(heli);
+
+	return heli;
+}
+
+void
+CHeli::UpdateHelis(void)
+{
+	int i, j;
+
+	// Spawn new police helis
+	int numHelisRequired = 
+#ifdef FIX_BUGS
+		CReplay::IsPlayingBack() ? 0 :
+#endif
+		FindPlayerPed()->m_pWanted->NumOfHelisRequired();
+	if(CCullZones::PlayerNoRain() || CGame::IsInInterior())
+		numHelisRequired = 0;
+	if(CStreaming::HasModelLoaded(MI_CHOPPER) && CTimer::GetTimeInMilliseconds() > TestForNewRandomHelisTimer){
+		// Spawn a police heli
+		TestForNewRandomHelisTimer = CTimer::GetTimeInMilliseconds() + 15000;
+		if(NumRandomHelis < numHelisRequired){
+			NumRandomHelis++;
+			CHeli *heli = GenerateHeli(false);
+			heli->m_heliType = HELI_TYPE_RANDOM;
+			if(pHelis[HELI_RANDOM0] == nil)
+				pHelis[HELI_RANDOM0] = heli;
+			else if(pHelis[HELI_RANDOM1] == nil)
+				pHelis[HELI_RANDOM1] = heli;
+			else
+				assert(0 && "too many helis");
+		}
+	}
+
+	// Handle script heli
+	if(ScriptHeliOn){
+		if(CStreaming::HasModelLoaded(MI_CHOPPER) && pHelis[HELI_SCRIPT] == nil){
+			pHelis[HELI_SCRIPT] = GenerateHeli(false);
+			pHelis[HELI_SCRIPT]->m_heliType = HELI_TYPE_SCRIPT;
+		}else
+			CStreaming::RequestModel(MI_CHOPPER, 0);
+	}else{
+		if(pHelis[HELI_SCRIPT])
+			pHelis[HELI_SCRIPT]->m_heliStatus = HELI_STATUS_FLY_AWAY;
+	}
+
+	// Delete helis that we no longer need
+	for(i = 0; i < NUM_HELIS; i++)
+		if(pHelis[i] && pHelis[i]->m_heliStatus == HELI_STATUS_FLY_AWAY && pHelis[i]->GetPosition().z > 150.0f){
+			CWorld::Remove(pHelis[i]);
+			delete pHelis[i];
+			pHelis[i] = nil;
+			if(i != HELI_SCRIPT && i != HELI_CATALINA)
+				NumRandomHelis--;
+		}
+
+	// Handle explosions
+	for(i = 0; i < NUM_HELIS; i++){
+		if(pHelis[i] && pHelis[i]->m_heliStatus == HELI_STATUS_SHOT_DOWN && CTimer::GetTimeInMilliseconds() > pHelis[i]->m_nExplosionTimer){
+			// Second part of explosion
+			static int nFrameGen;
+			CRGBA colors[8];
+
+			TheCamera.CamShake(0.7f, pHelis[i]->GetPosition().x, pHelis[i]->GetPosition().y, pHelis[i]->GetPosition().z);
+
+			colors[0] = CRGBA(0, 0, 0, 255);
+			colors[1] = CRGBA(224, 224, 224, 255);
+			colors[2] = CRGBA(0, 0, 0, 255);
+			colors[3] = CRGBA(0, 0, 0, 255);
+			colors[4] = CRGBA(66, 162, 252, 255);
+			colors[5] = CRGBA(0, 0, 0, 255);
+			colors[6] = CRGBA(0, 0, 0, 255);
+			colors[7] = CRGBA(0, 0, 0, 255);
+
+			CVector pos = pHelis[i]->GetPosition();
+			CVector dir;
+			for(j = 0; j < 40; j++){
+				dir.x = CGeneral::GetRandomNumberInRange(-2.0f, 2.0f);
+				dir.y = CGeneral::GetRandomNumberInRange(-2.0f, 2.0f);
+				dir.z = CGeneral::GetRandomNumberInRange(0.0f, 2.0f);
+				int rotSpeed = CGeneral::GetRandomNumberInRange(10, 30);
+				if(CGeneral::GetRandomNumber() & 1)
+					rotSpeed = -rotSpeed;
+				int f = ++nFrameGen & 3;
+				CParticle::AddParticle(PARTICLE_HELI_DEBRIS, pos, dir,
+					nil, CGeneral::GetRandomNumberInRange(0.1f, 1.0f),
+					colors[nFrameGen&7], rotSpeed, 0, f, 0);
+			}
+
+			CExplosion::AddExplosion(nil, nil, EXPLOSION_HELI, pos, 0);
+
+			pHelis[i]->SpawnFlyingComponent(HELI_SKID_LEFT);
+			pHelis[i]->SpawnFlyingComponent(HELI_SKID_RIGHT);
+			pHelis[i]->SpawnFlyingComponent(HELI_TOPROTOR);
+
+			CDarkel::RegisterCarBlownUpByPlayer(pHelis[i]);
+			CWorld::Remove(pHelis[i]);
+			delete pHelis[i];
+			pHelis[i] = nil;
+			if(i != HELI_SCRIPT && i != HELI_CATALINA)
+				NumRandomHelis--;
+			if(i == HELI_CATALINA)
+				CatalinaHasBeenShotDown = true;
+
+			CStats::PeopleKilledByPlayer += 2;
+			CStats::PedsKilledOfThisType[PEDTYPE_COP] += 2;
+			CWorld::Players[CWorld::PlayerInFocus].m_nMoney += 250;
+			pos = CWorld::Players[CWorld::PlayerInFocus].m_pPed->GetPosition();
+			CWorld::Players[CWorld::PlayerInFocus].m_pPed->m_pWanted->RegisterCrime_Immediately(CRIME_SHOOT_HELI,
+				pos, i + 19843, false);
+
+			TestForNewRandomHelisTimer = CTimer::GetTimeInMilliseconds() + 50000;
+		}else if(pHelis[i] && pHelis[i]->m_heliStatus == HELI_STATUS_SHOT_DOWN && CTimer::GetTimeInMilliseconds()+7000 > pHelis[i]->m_nExplosionTimer){
+			// First part of explosion
+			if(CTimer::GetPreviousTimeInMilliseconds()+7000 < pHelis[i]->m_nExplosionTimer){
+				pHelis[i]->SpawnFlyingComponent(HELI_BACKROTOR);
+				pHelis[i]->SpawnFlyingComponent(HELI_TAIL);
+				pHelis[i]->m_fAngularSpeed *= -2.5f;
+				pHelis[i]->bRenderScorched = true;
+
+				TheCamera.CamShake(0.4f, pHelis[i]->GetPosition().x, pHelis[i]->GetPosition().y, pHelis[i]->GetPosition().z);
+
+				CVector pos = pHelis[i]->GetPosition() - 2.5f*pHelis[i]->GetForward();
+				CExplosion::AddExplosion(nil, nil, EXPLOSION_HELI2, pos, 0);
+			}else
+				pHelis[i]->m_fAngularSpeed *= 1.03f;
+		}
+	}
+
+	// Find police helis to remove
+	for(i = 0; i < 2; i++)
+		if(pHelis[i] && pHelis[i]->m_heliStatus != HELI_STATUS_FLY_AWAY){
+			if(numHelisRequired > 0)
+				numHelisRequired--;
+			else
+				pHelis[i]->m_heliStatus = HELI_STATUS_FLY_AWAY;
+		}
+
+	// Remove all helis if in a tunnel or under water
+	if(FindPlayerCoors().z < - 2.0f)
+		for(i = 0; i < NUM_HELIS; i++)
+			if(pHelis[i] && pHelis[i]->m_heliStatus != HELI_STATUS_SHOT_DOWN)
+				pHelis[i]->m_heliStatus = HELI_STATUS_FLY_AWAY;
+}
+
+void
+CHeli::SpecialHeliPreRender(void)
+{
+	int i;
+	for(i = 0; i < NUM_HELIS; i++)
+		if(pHelis[i])
+			pHelis[i]->PreRenderAlways();
+}
+
+bool
+CHeli::TestRocketCollision(CVector *rocketPos)
+{
+	int i;
+	bool hit = false;
+
+	for(i = 0; i < NUM_HELIS; i++){
+		if(pHelis[i] && !pHelis[i]->bExplosionProof && (*rocketPos - pHelis[i]->GetPosition()).MagnitudeSqr() < sq(8.0f)){
+			pHelis[i]->m_fAngularSpeed = CGeneral::GetRandomTrueFalse() ? 0.05f : -0.05f;
+			pHelis[i]->m_heliStatus = HELI_STATUS_SHOT_DOWN;
+			pHelis[i]->m_nExplosionTimer = CTimer::GetTimeInMilliseconds() + 10000;
+			hit = true;
+		}
+	}
+	return hit;
+}
+
+bool
+CHeli::TestBulletCollision(CVector *line0, CVector *line1, CVector *bulletPos, int32 damage)
+{
+	int i;
+	bool hit = false;
+
+	for(i = 0; i < NUM_HELIS; i++)
+		if(pHelis[i] && !pHelis[i]->bBulletProof && CCollision::DistToLine(line0, line1, &pHelis[i]->GetPosition()) < 5.0f){
+			// Find bullet position
+			float distToHeli = (pHelis[i]->GetPosition() - *line0).Magnitude();
+			CVector line = (*line1 - *line0);
+			float lineLength = line.Magnitude();
+			*bulletPos = *line0 + line*Max(1.0f, distToHeli-5.0f)/lineLength;
+
+			pHelis[i]->m_nBulletDamage += damage;
+
+			if(pHelis[i]->m_heliType == HELI_CATALINA && pHelis[i]->m_nBulletDamage > 400 ||
+			   pHelis[i]->m_heliType != HELI_CATALINA && pHelis[i]->m_nBulletDamage > 700){
+				pHelis[i]->m_fAngularSpeed = CGeneral::GetRandomTrueFalse() ? 0.05f : -0.05f;
+				pHelis[i]->m_heliStatus = HELI_STATUS_SHOT_DOWN;
+				pHelis[i]->m_nExplosionTimer = CTimer::GetTimeInMilliseconds() + 10000;
+			}
+
+			hit = true;
+		}
+	return hit;
+}
+
+bool
+CHeli::TestSniperCollision(CVector *line0, CVector *line1)
+{
+	int i;
+	bool hit = false;
+
+	for(i = 0; i < NUM_HELIS; i++){
+		if(pHelis[i] && !pHelis[i]->bBulletProof) {
+			CVector pilotPos = pHelis[i]->GetMatrix() * CVector(-0.43f, 1.49f, 1.5f);
+			if(CCollision::DistToLine(line0, line1, &pilotPos) < 0.8f){
+				pHelis[i]->m_fAngularSpeed = CGeneral::GetRandomTrueFalse() ? 0.05f : -0.05f;
+				pHelis[i]->m_heliStatus = HELI_STATUS_SHOT_DOWN;
+				pHelis[i]->m_nExplosionTimer = CTimer::GetTimeInMilliseconds() + 9999999;
+				pHelis[i]->m_numSwat = 0;
+
+				hit = true;
+			}
+		}
+	}
+	return hit;
+}
+
+void CHeli::StartCatalinaFlyBy(void)
+{
+	CatalinaHeliOn = true;
+	CatalinaHasBeenShotDown = false;
+}
+
+void
+CHeli::RemoveCatalinaHeli(void)
+{
+	CatalinaHeliOn = false;
+	if(pHelis[HELI_CATALINA]){
+		CWorld::Remove(pHelis[HELI_CATALINA]);
+		delete pHelis[HELI_CATALINA];
+		pHelis[HELI_CATALINA] = nil;
+	}
+}
+
+CHeli *CHeli::FindPointerToCatalinasHeli(void) { return pHelis[HELI_CATALINA]; }
+void CHeli::CatalinaTakeOff(void) { pHelis[HELI_CATALINA]->m_pathState = 8; }
+void CHeli::MakeCatalinaHeliFlyAway(void) { pHelis[HELI_CATALINA]->m_pathState = 12; }
+bool CHeli::HasCatalinaBeenShotDown(void) { return CatalinaHasBeenShotDown; }
+
+void CHeli::ActivateHeli(bool activate) { ScriptHeliOn = activate; }