//========= Copyright Valve Corporation, All rights reserved. ============//
//
//
//
//=============================================================================

#include "cbase.h"
#include "vehicle_jeep_episodic.h"
#include "collisionutils.h"
#include "npc_alyx_episodic.h"
#include "particle_parse.h"
#include "particle_system.h"
#include "hl2_player.h"
#include "in_buttons.h"
#include "vphysics/friction.h"
#include "vphysicsupdateai.h"
#include "physics_npc_solver.h"
#include "Sprite.h"
#include "weapon_striderbuster.h"
#include "npc_strider.h"
#include "vguiscreen.h"
#include "hl2_vehicle_radar.h"
#include "props.h"
#include "ai_dynamiclink.h"
#include "IEffects.h"

#include "weapon_ar2.h"
extern ConVar phys_upimpactforcescale;

ConVar jalopy_blocked_exit_max_speed("jalopy_blocked_exit_max_speed", "50");

#define JEEP_AMMOCRATE_HITGROUP		5
#define	JEEP_AMMO_CRATE_CLOSE_DELAY	2.0f

// Bodygroups
#define JEEP_RADAR_BODYGROUP	1
#define JEEP_HOPPER_BODYGROUP	2
#define JEEP_CARBAR_BODYGROUP   3

#define RADAR_PANEL_MATERIAL	"vgui/screens/radar"
#define RADAR_PANEL_WRITEZ		"engine/writez"

static const char *s_szHazardSprite = "sprites/light_glow01.vmt";

enum
{
	RADAR_MODE_NORMAL = 0,
	RADAR_MODE_STICKY,
};

//=========================================================
//=========================================================
class CRadarTarget : public CPointEntity
{
	DECLARE_CLASS(CRadarTarget, CPointEntity);

public:
	void	Spawn();

	bool	IsDisabled()	{ return m_bDisabled; }
	int		GetType()		{ return m_iType; }
	int		GetMode()		{ return m_iMode; }
	void	InputEnable(inputdata_t &inputdata);
	void	InputDisable(inputdata_t &inputdata);
	int		ObjectCaps();

private:
	bool	m_bDisabled;
	int		m_iType;
	int		m_iMode;

public:
	float	m_flRadius;

	DECLARE_DATADESC();
};

LINK_ENTITY_TO_CLASS(info_radar_target, CRadarTarget);

BEGIN_DATADESC(CRadarTarget)
DEFINE_KEYFIELD(m_bDisabled, FIELD_BOOLEAN, "StartDisabled"),
DEFINE_KEYFIELD(m_flRadius, FIELD_FLOAT, "radius"),
DEFINE_KEYFIELD(m_iType, FIELD_INTEGER, "type"),
DEFINE_KEYFIELD(m_iMode, FIELD_INTEGER, "mode"),
DEFINE_INPUTFUNC(FIELD_VOID, "Enable", InputEnable),
DEFINE_INPUTFUNC(FIELD_VOID, "Disable", InputDisable),
END_DATADESC();

//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void CRadarTarget::Spawn()
{
	BaseClass::Spawn();

	AddEffects(EF_NODRAW);
	SetMoveType(MOVETYPE_NONE);
	SetSolid(SOLID_NONE);
}

//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void CRadarTarget::InputEnable(inputdata_t &inputdata)
{
	m_bDisabled = false;
}

//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void CRadarTarget::InputDisable(inputdata_t &inputdata)
{
	m_bDisabled = true;
}

//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
int CRadarTarget::ObjectCaps()
{
	return BaseClass::ObjectCaps() | FCAP_ACROSS_TRANSITION;
}




//
// Trigger which detects entities placed in the cargo hold of the jalopy
//

class CVehicleCargoTrigger : public CBaseEntity
{
	DECLARE_CLASS(CVehicleCargoTrigger, CBaseEntity);

public:

	// 
	// Creates a trigger with the specified bounds

	static CVehicleCargoTrigger *Create(const Vector &vecOrigin, const Vector &vecMins, const Vector &vecMaxs, CBaseEntity *pOwner)
	{
		CVehicleCargoTrigger *pTrigger = (CVehicleCargoTrigger *)CreateEntityByName("trigger_vehicle_cargo");
		if (pTrigger == NULL)
			return NULL;

		UTIL_SetOrigin(pTrigger, vecOrigin);
		UTIL_SetSize(pTrigger, vecMins, vecMaxs);
		pTrigger->SetOwnerEntity(pOwner);
		pTrigger->SetParent(pOwner);

		pTrigger->Spawn();

		return pTrigger;
	}

	//
	// Handles the trigger touching its intended quarry

	void CargoTouch(CBaseEntity *pOther)
	{
		// Cannot be ignoring touches
		if ((m_hIgnoreEntity == pOther) || (m_flIgnoreDuration >= gpGlobals->curtime))
			return;

		// Make sure this object is being held by the player
		if (pOther->VPhysicsGetObject() == NULL || (pOther->VPhysicsGetObject()->GetGameFlags() & FVPHYSICS_PLAYER_HELD) == false)
			return;

		if (StriderBuster_NumFlechettesAttached(pOther) > 0)
			return;

		AddCargo(pOther);
	}

	bool AddCargo(CBaseEntity *pOther)
	{
		// For now, only bother with strider busters
		if ((FClassnameIs(pOther, "weapon_striderbuster") == false) &&
			(FClassnameIs(pOther, "npc_grenade_magna") == false)
			)
			return false;

		// Must be a physics prop
		CPhysicsProp *pProp = dynamic_cast<CPhysicsProp *>(pOther);
		if (pOther == NULL)
			return false;

		CPropJeepEpisodic *pJeep = dynamic_cast< CPropJeepEpisodic * >(GetOwnerEntity());
		if (pJeep == NULL)
			return false;

		// Make the player release the item
		Pickup_ForcePlayerToDropThisObject(pOther);

		// Stop colliding with things
		pOther->VPhysicsDestroyObject();
		pOther->SetSolidFlags(FSOLID_NOT_SOLID);
		pOther->SetMoveType(MOVETYPE_NONE);

		// Parent the object to our owner
		pOther->SetParent(GetOwnerEntity());

		// The car now owns the entity
		pJeep->AddPropToCargoHold(pProp);

		// Notify the buster that it's been added to the cargo hold.		
		StriderBuster_OnAddToCargoHold(pProp);

		// Stop touching this item
		Disable();

		return true;
	}

	//
	// Setup the entity

	void Spawn(void)
	{
		BaseClass::Spawn();

		SetSolid(SOLID_BBOX);
		SetSolidFlags(FSOLID_TRIGGER | FSOLID_NOT_SOLID);

		SetTouch(&CVehicleCargoTrigger::CargoTouch);
	}

	void Activate()
	{
		BaseClass::Activate();
		SetSolidFlags(FSOLID_TRIGGER | FSOLID_NOT_SOLID); // Fixes up old savegames
	}

	//
	// When we've stopped touching this entity, we ignore it

	void EndTouch(CBaseEntity *pOther)
	{
		if (pOther == m_hIgnoreEntity)
		{
			m_hIgnoreEntity = NULL;
		}

		BaseClass::EndTouch(pOther);
	}

	//
	// Disables the trigger for a set duration

	void IgnoreTouches(CBaseEntity *pIgnoreEntity)
	{
		m_hIgnoreEntity = pIgnoreEntity;
		m_flIgnoreDuration = gpGlobals->curtime + 0.5f;
	}

	void Disable(void)
	{
		SetTouch(NULL);
	}

	void Enable(void)
	{
		SetTouch(&CVehicleCargoTrigger::CargoTouch);
	}

protected:

	float					m_flIgnoreDuration;
	CHandle	<CBaseEntity>	m_hIgnoreEntity;

	DECLARE_DATADESC();
};

LINK_ENTITY_TO_CLASS(trigger_vehicle_cargo, CVehicleCargoTrigger);

BEGIN_DATADESC(CVehicleCargoTrigger)
DEFINE_FIELD(m_flIgnoreDuration, FIELD_TIME),
DEFINE_FIELD(m_hIgnoreEntity, FIELD_EHANDLE),
DEFINE_ENTITYFUNC(CargoTouch),
END_DATADESC();

//
// Transition reference point for the vehicle
//

class CInfoTargetVehicleTransition : public CPointEntity
{
public:
	DECLARE_CLASS(CInfoTargetVehicleTransition, CPointEntity);

	void Enable(void) { m_bDisabled = false; }
	void Disable(void) { m_bDisabled = true; }

	bool IsDisabled(void) const { return m_bDisabled; }

private:

	void InputEnable(inputdata_t &data) { Enable(); }
	void InputDisable(inputdata_t &data) { Disable(); }

	bool	m_bDisabled;

	DECLARE_DATADESC();
};

BEGIN_DATADESC(CInfoTargetVehicleTransition)
DEFINE_KEYFIELD(m_bDisabled, FIELD_BOOLEAN, "StartDisabled"),

DEFINE_INPUTFUNC(FIELD_VOID, "Enable", InputEnable),
DEFINE_INPUTFUNC(FIELD_VOID, "Disable", InputDisable),
END_DATADESC();

LINK_ENTITY_TO_CLASS(info_target_vehicle_transition, CInfoTargetVehicleTransition);

//
//	CPropJeepEpisodic
//

LINK_ENTITY_TO_CLASS(prop_vehicle_jeep, CPropJeepEpisodic);
//LINK_ENTITY_TO_CLASS(prop_vehicle_jeep_episodic, CPropJeepEpisodic);
LINK_ENTITY_TO_CLASS(prop_vehicle_snowmobile, CPropJeepEpisodic);		// BJ: Snowmobile class added

BEGIN_DATADESC(CPropJeepEpisodic)
DEFINE_FIELD(m_add, FIELD_EHANDLE),
DEFINE_FIELD(m_add2, FIELD_EHANDLE),
DEFINE_FIELD(m_bEntranceLocked, FIELD_BOOLEAN),
DEFINE_FIELD(m_bExitLocked, FIELD_BOOLEAN),
DEFINE_FIELD(m_hCargoProp, FIELD_EHANDLE),
DEFINE_FIELD(m_hCargoTrigger, FIELD_EHANDLE),
DEFINE_FIELD(m_bAddingCargo, FIELD_BOOLEAN),
DEFINE_ARRAY(m_hWheelDust, FIELD_EHANDLE, NUM_WHEEL_EFFECTS),
DEFINE_ARRAY(m_hWheelWater, FIELD_EHANDLE, NUM_WHEEL_EFFECTS),
DEFINE_ARRAY(m_hHazardLights, FIELD_EHANDLE, NUM_HAZARD_LIGHTS),
DEFINE_FIELD(m_flCargoStartTime, FIELD_TIME),
DEFINE_FIELD(m_bBlink, FIELD_BOOLEAN),
DEFINE_FIELD(m_bRadarEnabled, FIELD_BOOLEAN),
DEFINE_FIELD(m_bRadarDetectsEnemies, FIELD_BOOLEAN),
DEFINE_FIELD(m_hRadarScreen, FIELD_EHANDLE),
DEFINE_FIELD(m_hLinkControllerFront, FIELD_EHANDLE),
DEFINE_FIELD(m_hLinkControllerRear, FIELD_EHANDLE),
DEFINE_KEYFIELD(m_bBusterHopperVisible, FIELD_BOOLEAN, "CargoVisible"),
// m_flNextAvoidBroadcastTime
DEFINE_FIELD(m_flNextWaterSound, FIELD_TIME),
DEFINE_FIELD(m_flNextRadarUpdateTime, FIELD_TIME),
DEFINE_FIELD(m_iNumRadarContacts, FIELD_INTEGER),
DEFINE_ARRAY(m_vecRadarContactPos, FIELD_POSITION_VECTOR, RADAR_MAX_CONTACTS),
DEFINE_ARRAY(m_iRadarContactType, FIELD_INTEGER, RADAR_MAX_CONTACTS),

DEFINE_THINKFUNC(HazardBlinkThink),

DEFINE_OUTPUT(m_OnCompanionEnteredVehicle, "OnCompanionEnteredVehicle"),
DEFINE_OUTPUT(m_OnCompanionExitedVehicle, "OnCompanionExitedVehicle"),
DEFINE_OUTPUT(m_OnHostileEnteredVehicle, "OnHostileEnteredVehicle"),
DEFINE_OUTPUT(m_OnHostileExitedVehicle, "OnHostileExitedVehicle"),

DEFINE_INPUTFUNC(FIELD_VOID, "LockEntrance", InputLockEntrance),
DEFINE_INPUTFUNC(FIELD_VOID, "UnlockEntrance", InputUnlockEntrance),
DEFINE_INPUTFUNC(FIELD_VOID, "LockExit", InputLockExit),
DEFINE_INPUTFUNC(FIELD_VOID, "UnlockExit", InputUnlockExit),
DEFINE_INPUTFUNC(FIELD_VOID, "EnableRadar", InputEnableRadar),
DEFINE_INPUTFUNC(FIELD_VOID, "DisableRadar", InputDisableRadar),
DEFINE_INPUTFUNC(FIELD_VOID, "EnableRadarDetectEnemies", InputEnableRadarDetectEnemies),
DEFINE_INPUTFUNC(FIELD_VOID, "AddBusterToCargo", InputAddBusterToCargo),
DEFINE_INPUTFUNC(FIELD_VOID, "OutsideTransition", InputOutsideTransition),
DEFINE_INPUTFUNC(FIELD_VOID, "DisablePhysGun", InputDisablePhysGun),
DEFINE_INPUTFUNC(FIELD_VOID, "EnablePhysGun", InputEnablePhysGun),
DEFINE_INPUTFUNC(FIELD_VOID, "CreateLinkController", InputCreateLinkController),
DEFINE_INPUTFUNC(FIELD_VOID, "DestroyLinkController", InputDestroyLinkController),

DEFINE_INPUTFUNC(FIELD_BOOLEAN, "SetCargoHopperVisibility", InputSetCargoVisibility),
DEFINE_FIELD(m_bHeadlightIsOn, FIELD_BOOLEAN),

END_DATADESC();

IMPLEMENT_SERVERCLASS_ST(CPropJeepEpisodic, DT_CPropJeepEpisodic)
//CNetworkVar( int, m_iNumRadarContacts );
SendPropInt(SENDINFO(m_iNumRadarContacts), 8),

//CNetworkArray( Vector, m_vecRadarContactPos, RADAR_MAX_CONTACTS );
SendPropArray(SendPropVector(SENDINFO_ARRAY(m_vecRadarContactPos), -1, SPROP_COORD), m_vecRadarContactPos),

//CNetworkArray( int, m_iRadarContactType, RADAR_MAX_CONTACTS );
SendPropArray(SendPropInt(SENDINFO_ARRAY(m_iRadarContactType), RADAR_CONTACT_TYPE_BITS), m_iRadarContactType),
END_SEND_TABLE()


//=============================================================================
// Episodic jeep

CPropJeepEpisodic::CPropJeepEpisodic(void) :
m_bEntranceLocked(false),
m_bExitLocked(false),
m_bAddingCargo(true),
m_flNextAvoidBroadcastTime(0.0f)
{
	m_bHasGun = false;
	m_bAllowDetach = false;
	m_bUnableToFire = false;
	m_bRadarDetectsEnemies = false;
	HasTakenGauss = false;
}


//-----------------------------------------------------------------------------
// Purpose: 
//-----------------------------------------------------------------------------
void CPropJeepEpisodic::UpdateOnRemove(void)
{
	BaseClass::UpdateOnRemove();

	// Kill our wheel dust
	for (int i = 0; i < NUM_WHEEL_EFFECTS; i++)
	{
		if (m_hWheelDust[i] != NULL)
		{
			UTIL_Remove(m_hWheelDust[i]);
		}

		if (m_hWheelWater[i] != NULL)
		{
			UTIL_Remove(m_hWheelWater[i]);
		}
	}

	DestroyHazardLights();
}

//-----------------------------------------------------------------------------
// Purpose: 
//-----------------------------------------------------------------------------
void CPropJeepEpisodic::Precache(void)
{
	PrecacheMaterial(RADAR_PANEL_MATERIAL);
	PrecacheMaterial(RADAR_PANEL_WRITEZ);
	PrecacheModel(s_szHazardSprite);
	PrecacheModel("models/combine_turrets/combine_cannon_gun.mdl");
	PrecacheScriptSound("JNK_Radar_Ping_Friendly");
	PrecacheScriptSound("Physics.WaterSplash");

	PrecacheScriptSound("Jeep.GaussReCharge");

	PrecacheScriptSound("Jeep.GaussDeCharge");

	PrecacheParticleSystem("WheelDust");
	PrecacheParticleSystem("WheelSplash");

	BaseClass::Precache();
}

//-----------------------------------------------------------------------------
// Purpose: 
// Input  : *pPlayer - 
//-----------------------------------------------------------------------------
void CPropJeepEpisodic::EnterVehicle(CBaseCombatCharacter *pPassenger)
{
	BaseClass::EnterVehicle(pPassenger);

	// Turn our hazards off!
	DestroyHazardLights();

	if (FClassnameIs(this, "prop_vehicle_snowmobile"))	// BJ: If snowmobile, use real hands and legs
	{
		DevMsg("Enter snowmobile event \n");
		static int iFindhands = FindBodygroupByName("hevhands");
		this->SetBodygroup(iFindhands, 1);		// hands
		//SetBodygroup(1, 1);		// legs
	}
}

//-----------------------------------------------------------------------------
// Purpose: 
//-----------------------------------------------------------------------------
void CPropJeepEpisodic::Spawn(void)
{
	BaseClass::Spawn();

	SetBlocksLOS(false);

	bool isBuggy = Q_strstr(STRING(GetModelName()), "buggy.mdl") > 0;

	CBasePlayer	*pPlayer = UTIL_GetLocalPlayer();
	if (pPlayer != NULL && !isBuggy)
	{
		pPlayer->m_Local.m_iHideHUD |= HIDEHUD_VEHICLE_CROSSHAIR;
	}

	if (!isBuggy)
	{
		m_bHasGun = false;
		m_bAllowDetach = false;
	}

	SetBodygroup(JEEP_HOPPER_BODYGROUP, m_bBusterHopperVisible ? 1 : 0);

	if (!isBuggy)
		CreateCargoTrigger();

	// carbar bodygroup is always on
	SetBodygroup(JEEP_CARBAR_BODYGROUP, 1);

	m_bRadarDetectsEnemies = false;
}

//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
void CPropJeepEpisodic::Activate()
{
	m_iNumRadarContacts = 0; // Force first contact tone
	BaseClass::Activate();
}

//-----------------------------------------------------------------------------
// Purpose: 
//-----------------------------------------------------------------------------
void CPropJeepEpisodic::NPC_FinishedEnterVehicle(CAI_BaseNPC *pPassenger, bool bCompanion)
{
	// FIXME: This will be moved to the NPCs entering and exiting
	// Fire our outputs
	if (bCompanion)
	{
		m_OnCompanionEnteredVehicle.FireOutput(this, pPassenger);
	}
	else
	{
		m_OnHostileEnteredVehicle.FireOutput(this, pPassenger);
	}
}

//-----------------------------------------------------------------------------
// Purpose: 
//-----------------------------------------------------------------------------
void CPropJeepEpisodic::NPC_FinishedExitVehicle(CAI_BaseNPC *pPassenger, bool bCompanion)
{
	// FIXME: This will be moved to the NPCs entering and exiting
	// Fire our outputs
	if (bCompanion)
	{
		m_OnCompanionExitedVehicle.FireOutput(this, pPassenger);
	}
	else
	{
		m_OnHostileExitedVehicle.FireOutput(this, pPassenger);
	}
}

//-----------------------------------------------------------------------------
// Purpose: 
// Input  : *pPassenger - 
//			bCompanion - 
// Output : Returns true on success, false on failure.
//-----------------------------------------------------------------------------
bool CPropJeepEpisodic::NPC_CanEnterVehicle(CAI_BaseNPC *pPassenger, bool bCompanion)
{
	// Must be unlocked
	if (bCompanion && m_bEntranceLocked)
		return false;

	return BaseClass::NPC_CanEnterVehicle(pPassenger, bCompanion);
}

//-----------------------------------------------------------------------------
// Purpose: 
// Input  : *pPassenger - 
//			bCompanion - 
// Output : Returns true on success, false on failure.
//-----------------------------------------------------------------------------
bool CPropJeepEpisodic::NPC_CanExitVehicle(CAI_BaseNPC *pPassenger, bool bCompanion)
{
	// Must be unlocked
	if (bCompanion && m_bExitLocked)
		return false;

	return BaseClass::NPC_CanExitVehicle(pPassenger, bCompanion);
}

//-----------------------------------------------------------------------------
// Purpose: 
//-----------------------------------------------------------------------------
void CPropJeepEpisodic::InputLockEntrance(inputdata_t &data)
{
	m_bEntranceLocked = true;
}

//-----------------------------------------------------------------------------
// Purpose: 
//-----------------------------------------------------------------------------
void CPropJeepEpisodic::InputUnlockEntrance(inputdata_t &data)
{
	m_bEntranceLocked = false;
}

//-----------------------------------------------------------------------------
// Purpose: 
//-----------------------------------------------------------------------------
void CPropJeepEpisodic::InputLockExit(inputdata_t &data)
{
	m_bExitLocked = true;
}

//-----------------------------------------------------------------------------
// Purpose: 
//-----------------------------------------------------------------------------
void CPropJeepEpisodic::InputUnlockExit(inputdata_t &data)
{
	m_bExitLocked = false;
}

//-----------------------------------------------------------------------------
// Purpose: Turn on the Jalopy radar device
//-----------------------------------------------------------------------------
void CPropJeepEpisodic::InputEnableRadar(inputdata_t &data)
{
	if (m_bRadarEnabled)
		return; // Already enabled

	SetBodygroup(JEEP_RADAR_BODYGROUP, 1);

	SpawnRadarPanel();
}

//-----------------------------------------------------------------------------
// Purpose: Turn off the Jalopy radar device
//-----------------------------------------------------------------------------
void CPropJeepEpisodic::InputDisableRadar(inputdata_t &data)
{
	if (!m_bRadarEnabled)
		return; // Already disabled

	SetBodygroup(JEEP_RADAR_BODYGROUP, 0);

	DestroyRadarPanel();
}

//-----------------------------------------------------------------------------
// Purpose: Allow the Jalopy radar to detect Hunters and Striders
//-----------------------------------------------------------------------------
void CPropJeepEpisodic::InputEnableRadarDetectEnemies(inputdata_t &data)
{
	m_bRadarDetectsEnemies = true;
}

//-----------------------------------------------------------------------------
// Purpose: 
//-----------------------------------------------------------------------------
void CPropJeepEpisodic::InputAddBusterToCargo(inputdata_t &data)
{
	if (m_hCargoProp != NULL)
	{
		ReleasePropFromCargoHold();
		m_hCargoProp = NULL;
	}

	CBaseEntity *pNewBomb = CreateEntityByName("weapon_striderbuster");
	if (pNewBomb)
	{
		DispatchSpawn(pNewBomb);
		pNewBomb->Teleport(&m_hCargoTrigger->GetAbsOrigin(), NULL, NULL);
		m_hCargoTrigger->AddCargo(pNewBomb);
	}
}

//-----------------------------------------------------------------------------
// Purpose: 
// Output : Returns true on success, false on failure.
//-----------------------------------------------------------------------------
bool CPropJeepEpisodic::PassengerInTransition(void)
{
	// FIXME: Big hack - we need a way to bridge this data better
	// TODO: Get a list of passengers we can traverse instead
	CNPC_Alyx *pAlyx = CNPC_Alyx::GetAlyx();
	if (pAlyx)
	{
		if (pAlyx->GetPassengerState() == PASSENGER_STATE_ENTERING ||
			pAlyx->GetPassengerState() == PASSENGER_STATE_EXITING)
			return true;
	}

	return false;
}

//-----------------------------------------------------------------------------
// Purpose: Override velocity if our passenger is transitioning or we're upside-down
//-----------------------------------------------------------------------------
Vector CPropJeepEpisodic::PhysGunLaunchVelocity(const Vector &forward, float flMass)
{
	// Disallow
	if (PassengerInTransition())
		return vec3_origin;

	Vector vecPuntDir = BaseClass::PhysGunLaunchVelocity(forward, flMass);
	vecPuntDir.z = 150.0f;
	vecPuntDir *= 600.0f;
	return vecPuntDir;
}

//-----------------------------------------------------------------------------
// Purpose: Rolls the vehicle when its trying to upright itself from a punt
//-----------------------------------------------------------------------------
AngularImpulse CPropJeepEpisodic::PhysGunLaunchAngularImpulse(void)
{
	if (IsOverturned())
		return AngularImpulse(0, 300, 0);

	// Don't spin randomly, always spin reliably
	return AngularImpulse(0, 0, 0);
}

//-----------------------------------------------------------------------------
// Purpose: Get the upright strength based on what state we're in
//-----------------------------------------------------------------------------
float CPropJeepEpisodic::GetUprightStrength(void)
{
	// Lesser if overturned
	if (IsOverturned())
		return 2.0f;

	return 0.0f;
}

//-----------------------------------------------------------------------------
// Purpose: 
//-----------------------------------------------------------------------------
void CPropJeepEpisodic::CreateCargoTrigger(void)
{
	if (m_hCargoTrigger != NULL)
		return;

	int nAttachment = LookupAttachment("cargo");
	if (nAttachment)
	{
		Vector vecAttachOrigin;
		Vector vecForward, vecRight, vecUp;
		GetAttachment(nAttachment, vecAttachOrigin, &vecForward, &vecRight, &vecUp);

		// Approx size of the hold
		Vector vecMins(-8.0, -6.0, 0);
		Vector vecMaxs(8.0, 6.0, 4.0);

		// NDebugOverlay::BoxDirection( vecAttachOrigin, vecMins, vecMaxs, vecForward, 255, 0, 0, 64, 4.0f );

		// Create a trigger that lives for a small amount of time
		m_hCargoTrigger = CVehicleCargoTrigger::Create(vecAttachOrigin, vecMins, vecMaxs, this);
	}
}


//-----------------------------------------------------------------------------
// Purpose: If the player uses the jeep while at the back, he gets ammo from the crate instead
//-----------------------------------------------------------------------------
void CPropJeepEpisodic::Use(CBaseEntity *pActivator, CBaseEntity *pCaller, USE_TYPE useType, float value)
{
	CBasePlayer *pPlayer = ToBasePlayer(pActivator);

	if (pPlayer == NULL)
		return;

	BaseClass::Use(pActivator, pCaller, useType, value);
}

#define	MIN_WHEEL_DUST_SPEED	5

//-----------------------------------------------------------------------------
// Purpose: 
//-----------------------------------------------------------------------------
void CPropJeepEpisodic::UpdateWheelDust(void)
{
	// See if this wheel should emit dust
	const vehicleparams_t *vehicleData = m_pServerVehicle->GetVehicleParams();
	const vehicle_operatingparams_t *carState = m_pServerVehicle->GetVehicleOperatingParams();
	bool bAllowDust = vehicleData->steering.dustCloud;

	// Car must be active
	bool bCarOn = m_VehiclePhysics.IsOn();

	// Must be moving quickly enough or skidding along the ground
	bool bCreateDust = (bCarOn &&
		bAllowDust &&
		(m_VehiclePhysics.GetSpeed() >= MIN_WHEEL_DUST_SPEED || carState->skidSpeed > DEFAULT_SKID_THRESHOLD));

	// Update our wheel dust
	Vector	vecPos;
	for (int i = 0; i < NUM_WHEEL_EFFECTS; i++)
	{
		m_pServerVehicle->GetWheelContactPoint(i, vecPos);

		// Make sure the effect is created
		if (m_hWheelDust[i] == NULL)
		{
			// Create the dust effect in place
			m_hWheelDust[i] = (CParticleSystem *)CreateEntityByName("info_particle_system");
			if (m_hWheelDust[i] == NULL)
				continue;

			// Setup our basic parameters
			m_hWheelDust[i]->KeyValue("start_active", "0");
			m_hWheelDust[i]->KeyValue("effect_name", "WheelDust");
			m_hWheelDust[i]->SetParent(this);
			m_hWheelDust[i]->SetLocalOrigin(vec3_origin);
			DispatchSpawn(m_hWheelDust[i]);
			if (gpGlobals->curtime > 0.5f)
				m_hWheelDust[i]->Activate();
		}

		// Make sure the effect is created
		if (m_hWheelWater[i] == NULL)
		{
			// Create the dust effect in place
			m_hWheelWater[i] = (CParticleSystem *)CreateEntityByName("info_particle_system");
			if (m_hWheelWater[i] == NULL)
				continue;

			// Setup our basic parameters
			m_hWheelWater[i]->KeyValue("start_active", "0");
			m_hWheelWater[i]->KeyValue("effect_name", "WheelSplash");
			m_hWheelWater[i]->SetParent(this);
			m_hWheelWater[i]->SetLocalOrigin(vec3_origin);
			DispatchSpawn(m_hWheelWater[i]);
			if (gpGlobals->curtime > 0.5f)
				m_hWheelWater[i]->Activate();
		}

		// Turn the dust on or off
		if (bCreateDust)
		{
			// Angle the dust out away from the wheels
			Vector vecForward, vecRight, vecUp;
			GetVectors(&vecForward, &vecRight, &vecUp);

			const vehicle_controlparams_t *vehicleControls = m_pServerVehicle->GetVehicleControlParams();
			float flWheelDir = (i & 1) ? 1.0f : -1.0f;
			QAngle vecAngles;
			vecForward += vecRight * flWheelDir;
			vecForward += vecRight * (vehicleControls->steering*0.5f) * flWheelDir;
			vecForward += vecUp;
			VectorAngles(vecForward, vecAngles);

			// NDebugOverlay::Axis( vecPos, vecAngles, 8.0f, true, 0.1f );

			if (m_WaterData.m_bWheelInWater[i])
			{
				m_hWheelDust[i]->StopParticleSystem();

				// Set us up in the right position
				m_hWheelWater[i]->StartParticleSystem();
				m_hWheelWater[i]->SetAbsAngles(vecAngles);
				m_hWheelWater[i]->SetAbsOrigin(vecPos + Vector(0, 0, 8));

				if (m_flNextWaterSound < gpGlobals->curtime)
				{
					m_flNextWaterSound = gpGlobals->curtime + random->RandomFloat(0.25f, 1.0f);
					EmitSound("Physics.WaterSplash");
				}
			}
			else
			{
				m_hWheelWater[i]->StopParticleSystem();

				// Set us up in the right position
				m_hWheelDust[i]->StartParticleSystem();
				m_hWheelDust[i]->SetAbsAngles(vecAngles);
				m_hWheelDust[i]->SetAbsOrigin(vecPos + Vector(0, 0, 8));
			}
		}
		else
		{
			// Stop emitting
			m_hWheelDust[i]->StopParticleSystem();
			m_hWheelWater[i]->StopParticleSystem();
		}
	}
}

//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
ConVar jalopy_radar_test_ent("jalopy_radar_test_ent", "none");

//-----------------------------------------------------------------------------
// Purpose: Search for things that the radar detects, and stick them in the
// UTILVector that gets sent to the client for radar display.
//-----------------------------------------------------------------------------
void CPropJeepEpisodic::UpdateRadar(bool forceUpdate)
{
	bool bDetectedDog = false;

	if (!m_bRadarEnabled)
		return;

	if (!forceUpdate && gpGlobals->curtime < m_flNextRadarUpdateTime)
		return;

	// Count the targets on radar. If any more targets come on the radar, we beep.
	int m_iNumOldRadarContacts = m_iNumRadarContacts;

	m_flNextRadarUpdateTime = gpGlobals->curtime + RADAR_UPDATE_FREQUENCY;
	m_iNumRadarContacts = 0;

	CBaseEntity *pEnt = gEntList.FirstEnt();
	string_t iszRadarTarget = FindPooledString("info_radar_target");
	string_t iszStriderName = FindPooledString("npc_strider");
	string_t iszHunterName = FindPooledString("npc_hunter");

	string_t iszTestName = FindPooledString(jalopy_radar_test_ent.GetString());

	Vector vecJalopyOrigin = WorldSpaceCenter();

	while (pEnt != NULL)
	{
		int type = RADAR_CONTACT_NONE;

		if (pEnt->m_iClassname == iszRadarTarget)
		{
			CRadarTarget *pTarget = dynamic_cast<CRadarTarget*>(pEnt);

			if (pTarget != NULL && !pTarget->IsDisabled())
			{
				if (pTarget->m_flRadius < 0 || vecJalopyOrigin.DistToSqr(pTarget->GetAbsOrigin()) <= Square(pTarget->m_flRadius))
				{
					// This item has been detected.
					type = pTarget->GetType();

					if (type == RADAR_CONTACT_DOG)
						bDetectedDog = true;// used to prevent Alyx talking about the radar (see below)

					if (pTarget->GetMode() == RADAR_MODE_STICKY)
					{
						// This beacon was just detected. Now change the radius to infinite
						// so that it will never go off the radar due to distance.
						pTarget->m_flRadius = -1;
					}
				}
			}
		}
		else if (m_bRadarDetectsEnemies)
		{
			if (pEnt->m_iClassname == iszStriderName)
			{
				CNPC_Strider *pStrider = dynamic_cast<CNPC_Strider*>(pEnt);

				if (!pStrider || !pStrider->CarriedByDropship())
				{
					// Ignore striders which are carried by dropships.
					type = RADAR_CONTACT_LARGE_ENEMY;
				}
			}

			if (pEnt->m_iClassname == iszHunterName)
			{
				type = RADAR_CONTACT_ENEMY;
			}
		}

		if (type != RADAR_CONTACT_NONE)
		{
			Vector vecPos = pEnt->WorldSpaceCenter();

			m_vecRadarContactPos.Set(m_iNumRadarContacts, vecPos);
			m_iRadarContactType.Set(m_iNumRadarContacts, type);
			m_iNumRadarContacts++;

			if (m_iNumRadarContacts == RADAR_MAX_CONTACTS)
				break;
		}

		pEnt = gEntList.NextEnt(pEnt);
	}

	if (m_iNumRadarContacts > m_iNumOldRadarContacts)
	{
		// Play a bleepy sound
		if (!bDetectedDog)
		{
			EmitSound("JNK_Radar_Ping_Friendly");
		}

		//Notify Alyx so she can talk about the radar contact
		CNPC_Alyx *pAlyx = CNPC_Alyx::GetAlyx();

		if (!bDetectedDog && pAlyx != NULL && pAlyx->GetVehicle())
		{
			pAlyx->SpeakIfAllowed(TLK_PASSENGER_NEW_RADAR_CONTACT);
		}
	}

	if (bDetectedDog)
	{
		// Update the radar much more frequently when dog is around.
		m_flNextRadarUpdateTime = gpGlobals->curtime + RADAR_UPDATE_FREQUENCY_FAST;
	}

	//Msg("Server detected %d objects\n", m_iNumRadarContacts );

	CBasePlayer *pPlayer = AI_GetSinglePlayer();
	CSingleUserRecipientFilter filter(pPlayer);
	UserMessageBegin(filter, "UpdateJalopyRadar");
	WRITE_BYTE(0); // end marker
	MessageEnd();	// send message
}

ConVar jalopy_cargo_anim_time("jalopy_cargo_anim_time", "1.0");

//-----------------------------------------------------------------------------
// Purpose: 
//-----------------------------------------------------------------------------
void CPropJeepEpisodic::UpdateCargoEntry(void)
{
	// Don't bother if we have no prop to move
	if (m_hCargoProp == NULL)
		return;

	// If we're past our animation point, then we're already done
	if (m_flCargoStartTime + jalopy_cargo_anim_time.GetFloat() < gpGlobals->curtime)
	{
		// Close the hold immediately if we're finished
		if (m_bAddingCargo)
		{
			m_flAmmoCrateCloseTime = gpGlobals->curtime;
			m_bAddingCargo = false;
		}

		return;
	}

	// Get our target point
	int nAttachment = LookupAttachment("cargo");
	Vector vecTarget, vecOut;
	QAngle vecAngles;
	GetAttachmentLocal(nAttachment, vecTarget, vecAngles);

	// Find where we are in the blend and bias it for a fast entry and slow ease-out
	float flPerc = (jalopy_cargo_anim_time.GetFloat()) ? ((gpGlobals->curtime - m_flCargoStartTime) / jalopy_cargo_anim_time.GetFloat()) : 1.0f;
	flPerc = Bias(flPerc, 0.75f);
	VectorLerp(m_hCargoProp->GetLocalOrigin(), vecTarget, flPerc, vecOut);

	// Get our target orientation
	CPhysicsProp *pProp = dynamic_cast<CPhysicsProp *>(m_hCargoProp.Get());
	if (pProp == NULL)
		return;

	// Slerp our quaternions to find where we are this frame
	Quaternion	qtTarget;
	QAngle qa(0, 90, 0);
	qa += pProp->PreferredCarryAngles();
	AngleQuaternion(qa, qtTarget);	// FIXME: Find the real offset to make this sit properly
	Quaternion	qtCurrent;
	AngleQuaternion(pProp->GetLocalAngles(), qtCurrent);

	Quaternion qtOut;
	QuaternionSlerp(qtCurrent, qtTarget, flPerc, qtOut);

	// Put it back to angles
	QuaternionAngles(qtOut, vecAngles);

	// Finally, take these new position
	m_hCargoProp->SetLocalOrigin(vecOut);
	m_hCargoProp->SetLocalAngles(vecAngles);

	// Push the closing out into the future to make sure we don't try and close at the same time
	m_flAmmoCrateCloseTime += gpGlobals->frametime;
}

#define VEHICLE_AVOID_BROADCAST_RATE	0.5f

//-----------------------------------------------------------------------------
// Purpose: This function isn't really what we want
//-----------------------------------------------------------------------------
void CPropJeepEpisodic::CreateAvoidanceZone(void)
{
	if (m_flNextAvoidBroadcastTime > gpGlobals->curtime)
		return;

	// Only do this when we're stopped
	if (m_VehiclePhysics.GetSpeed() > 5.0f)
		return;

	float flHullRadius = CollisionProp()->BoundingRadius2D();

	Vector	vecPos;
	CollisionProp()->NormalizedToWorldSpace(Vector(0.5f, 0.33f, 0.25f), &vecPos);
	CSoundEnt::InsertSound(SOUND_MOVE_AWAY, vecPos, (flHullRadius*0.4f), VEHICLE_AVOID_BROADCAST_RATE, this);
	// NDebugOverlay::Sphere( vecPos, vec3_angle, flHullRadius*0.4f, 255, 0, 0, 0, true, VEHICLE_AVOID_BROADCAST_RATE );

	CollisionProp()->NormalizedToWorldSpace(Vector(0.5f, 0.66f, 0.25f), &vecPos);
	CSoundEnt::InsertSound(SOUND_MOVE_AWAY, vecPos, (flHullRadius*0.4f), VEHICLE_AVOID_BROADCAST_RATE, this);
	// NDebugOverlay::Sphere( vecPos, vec3_angle, flHullRadius*0.4f, 255, 0, 0, 0, true, VEHICLE_AVOID_BROADCAST_RATE );

	// Don't broadcast again until these are done
	m_flNextAvoidBroadcastTime = gpGlobals->curtime + VEHICLE_AVOID_BROADCAST_RATE;
}

//-----------------------------------------------------------------------------
// Purpose: 
//-----------------------------------------------------------------------------
void CPropJeepEpisodic::Think(void)
{
	BaseClass::Think();

	int attachment = LookupAttachment("Muzzle");
	CBasePlayer	*pPlayer = UTIL_GetLocalPlayer();
	if (attachment)
	{
		if (m_bEngineLocked)
		{
			m_bUnableToFire = true;

			if (pPlayer != NULL)
			{
				pPlayer->m_Local.m_iHideHUD |= HIDEHUD_VEHICLE_CROSSHAIR;
			}
		}
		else if (m_bHasGun)
		{
			// Start this as false and update it again each frame
			m_bUnableToFire = false;

			if (pPlayer != NULL)
			{
				if (attachment)
					pPlayer->m_Local.m_iHideHUD &= ~HIDEHUD_VEHICLE_CROSSHAIR;
				else
					pPlayer->m_Local.m_iHideHUD |= HIDEHUD_VEHICLE_CROSSHAIR;
			}
		}
	}

	// If our passenger is transitioning, then don't let the player drive off
	CNPC_Alyx *pAlyx = CNPC_Alyx::GetAlyx();
	if (pAlyx && pAlyx->GetPassengerState() == PASSENGER_STATE_EXITING)
	{
		m_throttleDisableTime = gpGlobals->curtime + 0.25f;
	}

	// Update our cargo entering our hold
	UpdateCargoEntry();

	// See if the wheel dust should be on or off
	UpdateWheelDust();

	// Update the radar, of course.
	UpdateRadar();

	if (m_hCargoTrigger && !m_hCargoProp && !m_hCargoTrigger->m_pfnTouch)
	{
		m_hCargoTrigger->Enable();
	}

	CreateAvoidanceZone();
}

//-----------------------------------------------------------------------------
// Purpose: 
// Input  : *pEntity - 
//-----------------------------------------------------------------------------
void CPropJeepEpisodic::AddPropToCargoHold(CPhysicsProp *pProp)
{
	// The hold must be empty to add something to it
	if (m_hCargoProp != NULL)
	{
		Assert(0);
		return;
	}

	// Take the prop as our cargo
	m_hCargoProp = pProp;
	m_flCargoStartTime = gpGlobals->curtime;
	m_bAddingCargo = true;
}

//-----------------------------------------------------------------------------
// Purpose: Drops the cargo from the hold
//-----------------------------------------------------------------------------
void CPropJeepEpisodic::ReleasePropFromCargoHold(void)
{
	// Pull the object free!
	m_hCargoProp->SetParent(NULL);
	m_hCargoProp->CreateVPhysics();

	if (m_hCargoTrigger)
	{
		m_hCargoTrigger->Enable();
		m_hCargoTrigger->IgnoreTouches(m_hCargoProp);
	}
}

//-----------------------------------------------------------------------------
// Purpose: If the player is trying to pull the cargo out of the hold using the physcannon, let him
// Output : Returns the cargo to pick up, if all the conditions are met
//-----------------------------------------------------------------------------
CBaseEntity *CPropJeepEpisodic::OnFailedPhysGunPickup(Vector vPhysgunPos)
{
	// Make sure we're available to open
	if (m_hCargoProp != NULL)
	{
		// Player's forward direction
		Vector vecPlayerForward;
		CBasePlayer *pPlayer = AI_GetSinglePlayer();
		if (pPlayer == NULL)
			return NULL;

		pPlayer->EyeVectors(&vecPlayerForward);

		// Origin and facing of the cargo hold
		Vector vecCargoOrigin;
		Vector vecCargoForward;
		GetAttachment("cargo", vecCargoOrigin, &vecCargoForward);

		// Direction from the cargo to the player's position
		Vector vecPickupDir = (vecCargoOrigin - vPhysgunPos);
		float flDist = VectorNormalize(vecPickupDir);

		// We need to make sure the player's position is within a cone near the opening and that they're also facing the right way
		bool bInCargoRange = ((flDist < (15.0f * 12.0f)) && DotProduct(vecCargoForward, vecPickupDir) < 0.1f);
		bool bFacingCargo = DotProduct(vecPlayerForward, vecPickupDir) > 0.975f;

		// If we're roughly pulling at the item, pick that up
		if (bInCargoRange && bFacingCargo)
		{
			// Save this for later
			CBaseEntity *pCargo = m_hCargoProp;

			// Drop the cargo
			ReleasePropFromCargoHold();

			// Forget the item but pass it back as the object to pick up
			m_hCargoProp = NULL;
			return pCargo;
		}
	}

	return BaseClass::OnFailedPhysGunPickup(vPhysgunPos);
}

// adds a collision solver for any small props that are stuck under the vehicle
static void SolveBlockingProps(CPropJeepEpisodic *pVehicleEntity, IPhysicsObject *pVehiclePhysics)
{
	CUtlVector<CBaseEntity *> solveList;
	float vehicleMass = pVehiclePhysics->GetMass();
	Vector vehicleUp;
	pVehicleEntity->GetVectors(NULL, NULL, &vehicleUp);
	IPhysicsFrictionSnapshot *pSnapshot = pVehiclePhysics->CreateFrictionSnapshot();
	while (pSnapshot->IsValid())
	{
		IPhysicsObject *pOther = pSnapshot->GetObject(1);
		float otherMass = pOther->GetMass();
		CBaseEntity *pOtherEntity = static_cast<CBaseEntity *>(pOther->GetGameData());
		Assert(pOtherEntity);
		if (pOtherEntity && pOtherEntity->GetMoveType() == MOVETYPE_VPHYSICS && pOther->IsMoveable() && (otherMass*4.0f) < vehicleMass)
		{
			Vector normal;
			pSnapshot->GetSurfaceNormal(normal);
			// this points down in the car's reference frame, then it's probably trapped under the car
			if (DotProduct(normal, vehicleUp) < -0.9f)
			{
				Vector point, pointLocal;
				pSnapshot->GetContactPoint(point);
				VectorITransform(point, pVehicleEntity->EntityToWorldTransform(), pointLocal);
				Vector bottomPoint = physcollision->CollideGetExtent(pVehiclePhysics->GetCollide(), vec3_origin, vec3_angle, Vector(0, 0, -1));
				// make sure it's under the bottom of the car
				float bottomPlane = DotProduct(bottomPoint, vehicleUp) + 8;	// 8 inches above bottom
				if (DotProduct(pointLocal, vehicleUp) <= bottomPlane)
				{
					//Msg("Solved %s\n", pOtherEntity->GetClassname());
					if (solveList.Find(pOtherEntity) < 0)
					{
						solveList.AddToTail(pOtherEntity);
					}
				}
			}
		}
		pSnapshot->NextFrictionData();
	}
	pVehiclePhysics->DestroyFrictionSnapshot(pSnapshot);
	if (solveList.Count())
	{
		for (int i = 0; i < solveList.Count(); i++)
		{
			EntityPhysics_CreateSolver(pVehicleEntity, solveList[i], true, 4.0f);
		}
		pVehiclePhysics->RecheckContactPoints();
	}
}

static void SimpleCollisionResponse(Vector velocityIn, const Vector &normal, float coefficientOfRestitution, Vector *pVelocityOut)
{
	Vector Vn = DotProduct(velocityIn, normal) * normal;
	Vector Vt = velocityIn - Vn;
	*pVelocityOut = Vt - coefficientOfRestitution * Vn;
}

static void KillBlockingEnemyNPCs(CBasePlayer *pPlayer, CBaseEntity *pVehicleEntity, IPhysicsObject *pVehiclePhysics)
{
	Vector velocity;
	pVehiclePhysics->GetVelocity(&velocity, NULL);
	float vehicleMass = pVehiclePhysics->GetMass();

	// loop through the contacts and look for enemy NPCs that we're pushing on
	CUtlVector<CAI_BaseNPC *> npcList;
	CUtlVector<Vector> forceList;
	CUtlVector<Vector> contactList;
	IPhysicsFrictionSnapshot *pSnapshot = pVehiclePhysics->CreateFrictionSnapshot();
	while (pSnapshot->IsValid())
	{
		IPhysicsObject *pOther = pSnapshot->GetObject(1);
		float otherMass = pOther->GetMass();
		CBaseEntity *pOtherEntity = static_cast<CBaseEntity *>(pOther->GetGameData());
		CAI_BaseNPC *pNPC = pOtherEntity ? pOtherEntity->MyNPCPointer() : NULL;
		// Is this an enemy NPC with a small enough mass?
		if (pNPC && pPlayer->IRelationType(pNPC) != D_LI && ((otherMass*2.0f) < vehicleMass))
		{
			// accumulate the stress force for this NPC in the lsit
			float force = pSnapshot->GetNormalForce();
			Vector normal;
			pSnapshot->GetSurfaceNormal(normal);
			normal *= force;
			int index = npcList.Find(pNPC);
			if (index < 0)
			{
				vphysicsupdateai_t *pUpdate = NULL;
				if (pNPC->VPhysicsGetObject() && pNPC->VPhysicsGetObject()->GetShadowController() && pNPC->GetMoveType() == MOVETYPE_STEP)
				{
					if (pNPC->HasDataObjectType(VPHYSICSUPDATEAI))
					{
						pUpdate = static_cast<vphysicsupdateai_t *>(pNPC->GetDataObject(VPHYSICSUPDATEAI));
						// kill this guy if I've been pushing him for more than half a second and I'm 
						// still pushing in his direction
						if ((gpGlobals->curtime - pUpdate->startUpdateTime) > 0.5f && DotProduct(velocity, normal) > 0)
						{
							index = npcList.AddToTail(pNPC);
							forceList.AddToTail(normal);
							Vector pos;
							pSnapshot->GetContactPoint(pos);
							contactList.AddToTail(pos);
						}
					}
					else
					{
						pUpdate = static_cast<vphysicsupdateai_t *>(pNPC->CreateDataObject(VPHYSICSUPDATEAI));
						pUpdate->startUpdateTime = gpGlobals->curtime;
					}
					// update based on vphysics for the next second
					// this allows the car to push the NPC
					pUpdate->stopUpdateTime = gpGlobals->curtime + 1.0f;
					float maxAngular;
					pNPC->VPhysicsGetObject()->GetShadowController()->GetMaxSpeed(&pUpdate->savedShadowControllerMaxSpeed, &maxAngular);
					pNPC->VPhysicsGetObject()->GetShadowController()->MaxSpeed(1.0f, maxAngular);
				}
			}
			else
			{
				forceList[index] += normal;
			}
		}
		pSnapshot->NextFrictionData();
	}
	pVehiclePhysics->DestroyFrictionSnapshot(pSnapshot);
	// now iterate the list and check each cumulative force against the threshold
	if (npcList.Count())
	{
		for (int i = npcList.Count(); --i >= 0;)
		{
			Vector damageForce;
			npcList[i]->VPhysicsGetObject()->GetVelocity(&damageForce, NULL);
			Vector vel;
			pVehiclePhysics->GetVelocityAtPoint(contactList[i], &vel);
			damageForce -= vel;
			Vector normal = forceList[i];
			VectorNormalize(normal);
			SimpleCollisionResponse(damageForce, normal, 1.0, &damageForce);
			damageForce += (normal * 300.0f);
			damageForce *= npcList[i]->VPhysicsGetObject()->GetMass();
			float len = damageForce.Length();
			damageForce.z += len*phys_upimpactforcescale.GetFloat();
			Vector vehicleForce = -damageForce;

			CTakeDamageInfo dmgInfo(pVehicleEntity, pVehicleEntity, damageForce, contactList[i], 200.0f, DMG_CRUSH | DMG_VEHICLE);
			npcList[i]->TakeDamage(dmgInfo);
			pVehiclePhysics->ApplyForceOffset(vehicleForce, contactList[i]);
			PhysCollisionSound(pVehicleEntity, npcList[i]->VPhysicsGetObject(), CHAN_BODY, pVehiclePhysics->GetMaterialIndex(), npcList[i]->VPhysicsGetObject()->GetMaterialIndex(), gpGlobals->frametime, 200.0f);
		}
	}
}


void CPropJeepEpisodic::DriveVehicle(float flFrameTime, CUserCmd *ucmd, int iButtonsDown, int iButtonsReleased)
{
	/*if (Q_strcmp(STRING(GetModelName()), "models/buggy.mdl") == 0)
	{
		if (ucmd->impulse == 100)
		{
			if (HeadlightIsOn())
			{
				HeadlightTurnOff();
			}
			else
			{
				HeadlightTurnOn();
			}
		}
	}*/

	if (ucmd->forwardmove != 0.0f)
	{
		//Msg("Push V: %.2f, %.2f, %.2f\n", ucmd->forwardmove, carState->engineRPM, carState->speed );
		CBasePlayer *pPlayer = ToBasePlayer(GetDriver());

		if (pPlayer && VPhysicsGetObject())
		{
			KillBlockingEnemyNPCs(pPlayer, this, VPhysicsGetObject());
			SolveBlockingProps(this, VPhysicsGetObject());
		}
	}
	BaseClass::DriveVehicle(flFrameTime, ucmd, iButtonsDown, iButtonsReleased);
}

//-----------------------------------------------------------------------------
// Purpose: 
//-----------------------------------------------------------------------------
void CPropJeepEpisodic::CreateHazardLights(void)
{
	static const char *s_szAttach[NUM_HAZARD_LIGHTS] =
	{
		"rearlight_r",
		"rearlight_l",
		"headlight_r",
		"headlight_l",
	};



	// Turn on the hazards!	
	for (int i = 0; i < NUM_HAZARD_LIGHTS; i++)
	{
		if (m_hHazardLights[i] == NULL)
		{
			m_hHazardLights[i] = CSprite::SpriteCreate(s_szHazardSprite, GetLocalOrigin(), false);
			if (m_hHazardLights[i])
			{
				m_hHazardLights[i]->SetTransparency(kRenderWorldGlow, 255, 220, 40, 255, kRenderFxNoDissipation);
				m_hHazardLights[i]->SetAttachment(this, LookupAttachment(s_szAttach[i]));
				m_hHazardLights[i]->SetGlowProxySize(2.0f);
				m_hHazardLights[i]->TurnOff();
				if (i < 2)
				{
					// Rear lights are red
					m_hHazardLights[i]->SetColor(255, 0, 0);
					m_hHazardLights[i]->SetScale(1.0f);
				}
				else
				{
					// Font lights are white
					m_hHazardLights[i]->SetScale(1.0f);
				}
			}
		}
	}

	// We start off
	m_bBlink = false;

	// Setup our blink
	SetContextThink(&CPropJeepEpisodic::HazardBlinkThink, gpGlobals->curtime + 0.1f, "HazardBlink");
}

//-----------------------------------------------------------------------------
// Purpose: 
//-----------------------------------------------------------------------------
void CPropJeepEpisodic::DestroyHazardLights(void)
{
	for (int i = 0; i < NUM_HAZARD_LIGHTS; i++)
	{
		if (m_hHazardLights[i] != NULL)
		{
			UTIL_Remove(m_hHazardLights[i]);
		}
	}

	SetContextThink(NULL, gpGlobals->curtime, "HazardBlink");
}

//-----------------------------------------------------------------------------
// Purpose: 
// Input  : nRole - 
//-----------------------------------------------------------------------------
void CPropJeepEpisodic::ExitVehicle(int nRole)
{
	BaseClass::ExitVehicle(nRole);

	if (HeadlightIsOn())
		HeadlightTurnOff();

	if (Q_strcmp(STRING(GetModelName()), "models/buggy.mdl") != 0)
	CreateHazardLights();

	if (FClassnameIs(this, "prop_vehicle_snowmobile"))	// BJ: If snowmobile, use real hands and legs
	{
		DevMsg("Exit snowmobile event \n");

		static int iFindhands = FindBodygroupByName("hevhands");
		this->SetBodygroup(iFindhands, 0);		// hands
		//SetBodygroup(1, 0);		// legs
	}
}

void CPropJeepEpisodic::SetBusterHopperVisibility(bool visible)
{
	// if we're there already do nothing
	if (visible == m_bBusterHopperVisible)
		return;

	SetBodygroup(JEEP_HOPPER_BODYGROUP, visible ? 1 : 0);
	m_bBusterHopperVisible = visible;
}


void CPropJeepEpisodic::InputSetCargoVisibility(inputdata_t &data)
{
	bool visible = data.value.Bool();

	SetBusterHopperVisibility(visible);
}

//-----------------------------------------------------------------------------
// THIS CODE LIFTED RIGHT OUT OF TF2, to defer the pain of making vgui-on-an-entity
// code available to all CBaseAnimating.
//-----------------------------------------------------------------------------
void CPropJeepEpisodic::SpawnRadarPanel()
{
	// FIXME: Deal with dynamically resizing control panels?

	// If we're attached to an entity, spawn control panels on it instead of use
	CBaseAnimating *pEntityToSpawnOn = this;
	char *pOrgLL = "controlpanel0_ll";
	char *pOrgUR = "controlpanel0_ur";

	Assert(pEntityToSpawnOn);

	// Lookup the attachment point...
	int nLLAttachmentIndex = pEntityToSpawnOn->LookupAttachment(pOrgLL);

	if (nLLAttachmentIndex <= 0)
	{
		return;
	}

	int nURAttachmentIndex = pEntityToSpawnOn->LookupAttachment(pOrgUR);
	if (nURAttachmentIndex <= 0)
	{
		return;
	}

	const char *pScreenName = "jalopy_radar_panel";
	const char *pScreenClassname = "vgui_screen";

	// Compute the screen size from the attachment points...
	matrix3x4_t	panelToWorld;
	pEntityToSpawnOn->GetAttachment(nLLAttachmentIndex, panelToWorld);

	matrix3x4_t	worldToPanel;
	MatrixInvert(panelToWorld, worldToPanel);

	// Now get the lower right position + transform into panel space
	Vector lr, lrlocal;
	pEntityToSpawnOn->GetAttachment(nURAttachmentIndex, panelToWorld);
	MatrixGetColumn(panelToWorld, 3, lr);
	VectorTransform(lr, worldToPanel, lrlocal);

	float flWidth = lrlocal.x;
	float flHeight = lrlocal.y;

	CVGuiScreen *pScreen = CreateVGuiScreen(pScreenClassname, pScreenName, pEntityToSpawnOn, this, nLLAttachmentIndex);
	pScreen->SetActualSize(flWidth, flHeight);
	pScreen->SetActive(true);
	pScreen->SetOverlayMaterial(RADAR_PANEL_WRITEZ);
	pScreen->SetTransparency(true);

	m_hRadarScreen.Set(pScreen);

	m_bRadarEnabled = true;
	m_iNumRadarContacts = 0;
	m_flNextRadarUpdateTime = gpGlobals->curtime - 1.0f;
}

//-----------------------------------------------------------------------------
void CPropJeepEpisodic::DestroyRadarPanel()
{
	Assert(m_hRadarScreen != NULL);
	m_hRadarScreen->SUB_Remove();
	m_bRadarEnabled = false;
}

//-----------------------------------------------------------------------------
// Purpose: 
//-----------------------------------------------------------------------------
void CPropJeepEpisodic::HazardBlinkThink(void)
{
	if (m_bBlink)
	{
		for (int i = 0; i < NUM_HAZARD_LIGHTS; i++)
		{
			if (m_hHazardLights[i])
			{
				m_hHazardLights[i]->SetBrightness(0, 0.1f);
			}
		}

		SetContextThink(&CPropJeepEpisodic::HazardBlinkThink, gpGlobals->curtime + 0.25f, "HazardBlink");
	}
	else
	{
		for (int i = 0; i < NUM_HAZARD_LIGHTS; i++)
		{
			if (m_hHazardLights[i])
			{
				m_hHazardLights[i]->SetBrightness(255, 0.1f);
				m_hHazardLights[i]->TurnOn();
			}
		}

		SetContextThink(&CPropJeepEpisodic::HazardBlinkThink, gpGlobals->curtime + 0.5f, "HazardBlink");
	}

	m_bBlink = !m_bBlink;
}

//-----------------------------------------------------------------------------
// Purpose: 
//-----------------------------------------------------------------------------
void CPropJeepEpisodic::HandleWater(void)
{
	// Only check the wheels and engine in water if we have a driver (player).
	if (!GetDriver())
		return;

	// Update our internal state
	CheckWater();

	// Save of data from last think.
	for (int iWheel = 0; iWheel < JEEP_WHEEL_COUNT; ++iWheel)
	{
		m_WaterData.m_bWheelWasInWater[iWheel] = m_WaterData.m_bWheelInWater[iWheel];
	}
}

//-----------------------------------------------------------------------------
// Purpose: Report our lock state
//-----------------------------------------------------------------------------
int	CPropJeepEpisodic::DrawDebugTextOverlays(void)
{
	int text_offset = BaseClass::DrawDebugTextOverlays();

	if (m_debugOverlays & OVERLAY_TEXT_BIT)
	{
		EntityText(text_offset, CFmtStr("Entrance: %s", m_bEntranceLocked ? "Locked" : "Unlocked"), 0);
		text_offset++;

		EntityText(text_offset, CFmtStr("Exit: %s", m_bExitLocked ? "Locked" : "Unlocked"), 0);
		text_offset++;
	}

	return text_offset;
}

#define TRANSITION_SEARCH_RADIUS	(100*12)

//-----------------------------------------------------------------------------
// Purpose: Teleport the car to a destination that will cause it to transition if it's not going to otherwise
//-----------------------------------------------------------------------------
void CPropJeepEpisodic::InputOutsideTransition(inputdata_t &inputdata)
{
	// Teleport into the new map
	CBasePlayer *pPlayer = AI_GetSinglePlayer();
	Vector vecTeleportPos;
	QAngle vecTeleportAngles;

	// Get our bounds
	Vector vecSurroundMins, vecSurroundMaxs;
	CollisionProp()->WorldSpaceSurroundingBounds(&vecSurroundMins, &vecSurroundMaxs);
	vecSurroundMins -= WorldSpaceCenter();
	vecSurroundMaxs -= WorldSpaceCenter();

	Vector vecBestPos;
	QAngle vecBestAngles;

	CInfoTargetVehicleTransition *pEntity = NULL;
	bool bSucceeded = false;

	// Find all entities of the correct name and try and sit where they're at
	while ((pEntity = (CInfoTargetVehicleTransition *)gEntList.FindEntityByClassname(pEntity, "info_target_vehicle_transition")) != NULL)
	{
		// Must be enabled
		if (pEntity->IsDisabled())
			continue;

		// Must be within range
		if ((pEntity->GetAbsOrigin() - pPlayer->GetAbsOrigin()).LengthSqr() > Square(TRANSITION_SEARCH_RADIUS))
			continue;

		vecTeleportPos = pEntity->GetAbsOrigin();
		vecTeleportAngles = pEntity->GetAbsAngles() + QAngle(0, -90, 0);	// Vehicle is always off by 90 degrees

		// Rotate to face the destination angles
		Vector vecMins;
		Vector vecMaxs;
		VectorRotate(vecSurroundMins, vecTeleportAngles, vecMins);
		VectorRotate(vecSurroundMaxs, vecTeleportAngles, vecMaxs);

		if (vecMaxs.x < vecMins.x)
			V_swap(vecMins.x, vecMaxs.x);

		if (vecMaxs.y < vecMins.y)
			V_swap(vecMins.y, vecMaxs.y);

		if (vecMaxs.z < vecMins.z)
			V_swap(vecMins.z, vecMaxs.z);

		// Move up
		vecTeleportPos.z += (vecMaxs.z - vecMins.z);

		trace_t	tr;
		UTIL_TraceHull(vecTeleportPos, vecTeleportPos - Vector(0, 0, 128), vecMins, vecMaxs, MASK_SOLID, this, COLLISION_GROUP_NONE, &tr);
		if (tr.startsolid == false && tr.allsolid == false && tr.fraction < 1.0f)
		{
			// Store this off
			vecBestPos = tr.endpos;
			vecBestAngles = vecTeleportAngles;
			bSucceeded = true;

			// If this point isn't visible, then stop looking and use it
			if (pPlayer->FInViewCone(tr.endpos) == false)
				break;
		}
	}

	// See if we're finished
	if (bSucceeded)
	{
		Teleport(&vecTeleportPos, &vecTeleportAngles, NULL);
		return;
	}

	// TODO: We found no valid teleport points, so try to find them dynamically
	Warning("No valid vehicle teleport points!\n");
}

//-----------------------------------------------------------------------------
// Purpose: Stop players punting the car around.
//-----------------------------------------------------------------------------
void CPropJeepEpisodic::InputDisablePhysGun(inputdata_t &data)
{
	AddEFlags(EFL_NO_PHYSCANNON_INTERACTION);
}
//-----------------------------------------------------------------------------
// Purpose: Return to normal
//-----------------------------------------------------------------------------
void CPropJeepEpisodic::InputEnablePhysGun(inputdata_t &data)
{
	RemoveEFlags(EFL_NO_PHYSCANNON_INTERACTION);
}

//-----------------------------------------------------------------------------
// Create and parent two radial node link controllers.
//-----------------------------------------------------------------------------
void CPropJeepEpisodic::InputCreateLinkController(inputdata_t &data)
{
	Vector vecFront, vecRear;
	Vector vecWFL, vecWFR;	// Front wheels
	Vector vecWRL, vecWRR;	// Back wheels

	GetAttachment("wheel_fr", vecWFR);
	GetAttachment("wheel_fl", vecWFL);

	GetAttachment("wheel_rr", vecWRR);
	GetAttachment("wheel_rl", vecWRL);

	vecFront = (vecWFL + vecWFR) * 0.5f;
	vecRear = (vecWRL + vecWRR) * 0.5f;

	float flRadius = ((vecFront - vecRear).Length()) * 0.6f;

	CAI_RadialLinkController *pLinkController = (CAI_RadialLinkController *)CreateEntityByName("info_radial_link_controller");
	if (pLinkController != NULL && m_hLinkControllerFront.Get() == NULL)
	{
		pLinkController->m_flRadius = flRadius;
		pLinkController->Spawn();
		pLinkController->SetAbsOrigin(vecFront);
		pLinkController->SetOwnerEntity(this);
		pLinkController->SetParent(this);
		pLinkController->Activate();
		m_hLinkControllerFront.Set(pLinkController);

		//NDebugOverlay::Circle( vecFront, Vector(0,1,0), Vector(1,0,0), flRadius, 255, 255, 255, 128, false, 100 );
	}

	pLinkController = (CAI_RadialLinkController *)CreateEntityByName("info_radial_link_controller");
	if (pLinkController != NULL && m_hLinkControllerRear.Get() == NULL)
	{
		pLinkController->m_flRadius = flRadius;
		pLinkController->Spawn();
		pLinkController->SetAbsOrigin(vecRear);
		pLinkController->SetOwnerEntity(this);
		pLinkController->SetParent(this);
		pLinkController->Activate();
		m_hLinkControllerRear.Set(pLinkController);

		//NDebugOverlay::Circle( vecRear, Vector(0,1,0), Vector(1,0,0), flRadius, 255, 255, 255, 128, false, 100 );
	}
}

void CPropJeepEpisodic::InputDestroyLinkController(inputdata_t &data)
{
	if (m_hLinkControllerFront.Get() != NULL)
	{
		CAI_RadialLinkController *pLinkController = dynamic_cast<CAI_RadialLinkController*>(m_hLinkControllerFront.Get());
		if (pLinkController != NULL)
		{
			pLinkController->ModifyNodeLinks(false);
			UTIL_Remove(pLinkController);
			m_hLinkControllerFront.Set(NULL);
		}
	}

	if (m_hLinkControllerRear.Get() != NULL)
	{
		CAI_RadialLinkController *pLinkController = dynamic_cast<CAI_RadialLinkController*>(m_hLinkControllerRear.Get());
		if (pLinkController != NULL)
		{
			pLinkController->ModifyNodeLinks(false);
			UTIL_Remove(pLinkController);
			m_hLinkControllerRear.Set(NULL);
		}
	}
}


bool CPropJeepEpisodic::AllowBlockedExit(CBaseCombatCharacter *pPassenger, int nRole)
{
	// Wait until we've settled down before we resort to blocked exits.
	// This keeps us from doing blocked exits in mid-jump, which can cause mayhem like
	// sticking the player through player clips or into geometry.
	return GetSmoothedVelocity().IsLengthLessThan(jalopy_blocked_exit_max_speed.GetFloat());
}