#ifdef PRECOMPILEDHEADERS
	#include "Strategic All.h"
#else
	#include "Map Screen Helicopter.h"
	#include "LaptopSave.h"
	#include "Vehicles.h"
	#include "Finances.h"
	#include "Quests.h"
	#include "Game Clock.h"
	#include "strategic.h"
	#include "Queen Command.h"
	#include "Strategic Pathing.h"
	#include "Random.h"
	#include "Game Event Hook.h"
	#include "String.h"
	#include "Dialogue Control.h"
	#include "Message.h"
	#include "Strategic Movement.h"
	#include "Soldier Profile.h"
	#include "Assignments.h"
	#include "PreBattle Interface.h"
	#include "strategicmap.h"
	#include "worlddef.h"
	#include "worldman.h"
	#include "tiledat.h"
	#include "Map Screen Interface.h"
	#include "Text.h"
	#include "Squads.h"
	#include "Player Command.h"
	#include "Sound Control.h"
	#include "GameSettings.h"
	#include "meanwhile.h"
	#include "Map Screen Interface Border.h"
	#include "Strategic Event Handler.h"
	#include "Overhead.h"
	#include "Soldier Create.h"
	#include "renderworld.h"
	#include "soundman.h"
	#include "Isometric Utils.h"
	#include "Scheduling.h"
#endif


// the amounts of time to wait for hover stuff
#define TIME_DELAY_FOR_HOVER_WAIT						10		// minutes
#define TIME_DELAY_FOR_HOVER_WAIT_TOO_LONG	20		// mintues


#define MIN_DAYS_BETWEEN_SKYRIDER_MONOLOGUES 1

// refuel delay
#define REFUEL_HELICOPTER_DELAY							30		// minutes

// total number of sectors one can go
//#define MAX_HELICOPTER_DISTANCE 25

// maximum chance out of a hundred per unsafe sector that a SAM site in decent working condition will hit Skyrider
#define MAX_SAM_SITE_ACCURACY		33


extern FACETYPE	*gpCurrentTalkingFace;
extern UINT8			gubCurrentTalkingID;

// current temp path for dest char
extern PathStPtr pTempHelicopterPath;

extern UINT8 ubSAMControlledSectors[ MAP_WORLD_Y ][ MAP_WORLD_X ];

// the seating capacities
extern INT32 iSeatingCapacities[];

// the static NPC dialogue faces
extern UINT32 uiExternalStaticNPCFaces[];

// the squad mvt groups
extern INT8 SquadMovementGroups[ ];


// whether helicopted variables have been set up
BOOLEAN fSkyRiderSetUp = FALSE;

// plotting for a helicopter
BOOLEAN fPlotForHelicopter = FALSE;

// is the helicopter available to player?
BOOLEAN fHelicopterAvailable = FALSE;

// helicopter vehicle id
INT32 iHelicopterVehicleId = -1;

// helicopter icon
UINT32 guiHelicopterIcon;

// total distance travelled
//INT32 iTotalHeliDistanceSinceRefuel = 0;

// total owed to player
INT32 iTotalAccumulatedCostByPlayer = 0;

// whether or not skyrider is alive and well? and on our side yet?
BOOLEAN fSkyRiderAvailable = FALSE;

#ifdef JA2TESTVERSION
BOOLEAN	fSAMSitesDisabledFromAttackingPlayer = FALSE;
#endif

// helicopter destroyed
BOOLEAN fHelicopterDestroyed = FALSE;

// list of sector locations where SkyRider can be refueled
UINT8 ubRefuelList[ NUMBER_OF_REFUEL_SITES ][ 2 ] =
{
	{ 13, 2 },		// Drassen airport
	{	6, 9 },		// Estoni
};


INT16 sRefuelStartGridNo[ NUMBER_OF_REFUEL_SITES ] ={
	9001, // drassen
	13067, // estoni
};

// whether or not helicopter can refuel at this site
BOOLEAN fRefuelingSiteAvailable[ NUMBER_OF_REFUEL_SITES ] = { FALSE, FALSE };

// is the heli in the air?
BOOLEAN fHelicopterIsAirBorne = FALSE;

// is the pilot returning straight to base?
BOOLEAN fHeliReturnStraightToBase = FALSE;

// heli hovering
BOOLEAN fHoveringHelicopter = FALSE;

// time started hovering
UINT32 uiStartHoverTime = 0;

// what state are skyrider's monologues in in?
UINT32 guiHelicopterSkyriderTalkState = 0;

// the flags for skyrider events
BOOLEAN fShowEstoniRefuelHighLight = FALSE;
BOOLEAN fShowOtherSAMHighLight = FALSE;
BOOLEAN fShowDrassenSAMHighLight = FALSE;
BOOLEAN fShowCambriaHospitalHighLight = FALSE;

UINT32 guiTimeOfLastSkyriderMonologue = 0;

UINT8 gubHelicopterHitsTaken = 0;

BOOLEAN gfSkyriderSaidCongratsOnTakingSAM = FALSE;
UINT8 gubPlayerProgressSkyriderLastCommentedOn = 0;

// skyrider placeholder
SOLDIERTYPE SoldierSkyRider;

SOLDIERTYPE *pSkyRider;



// helicopter char dialogue
BOOLEAN HeliCharacterDialogue( SOLDIERTYPE *pSoldier, UINT16 usQuoteNum );

// does skyrider notice bad guys in sector?
BOOLEAN DoesSkyriderNoticeEnemiesInSector( UINT8 ubNumEnemies );

// are we at the end of the path for the helicopter
BOOLEAN EndOfHelicoptersPath( void );

// find the location sector of closest refuel point for heli..and the criteria if the sector must be under the players control
INT32 FindLocationOfClosestRefuelSite( BOOLEAN fMustBeAvailable );


// add the tactical heli graphic
void AddHelicopterToMaps( BOOLEAN fAdd, UINT8 ubSite );

void PaySkyriderBill( void );
void MakeHeliReturnToBase( void );

void HandleSkyRiderMonologueAboutDrassenSAMSite( UINT32 uiSpecialCode );
void HandleSkyRiderMonologueAboutCambriaHospital( UINT32 uiSpecialCode );
void HandleSkyRiderMonologueAboutOtherSAMSites( UINT32 uiSpecialCode );
void HandleSkyRiderMonologueAboutEstoniRefuel( UINT32 uiSpecialCode );



void InitializeHelicopter( void )
{
	// must be called whenever a new game starts up!
	fHelicopterAvailable = FALSE;
	iHelicopterVehicleId = -1;

	fSkyRiderAvailable = FALSE;
	fSkyRiderSetUp = FALSE;
	pSkyRider = NULL;
	SoldierSkyRider.initialize();

	fHelicopterIsAirBorne = FALSE;
	fHeliReturnStraightToBase = FALSE;

	fHoveringHelicopter = FALSE;
	uiStartHoverTime = 0;

	fPlotForHelicopter = FALSE;
	pTempHelicopterPath = NULL;

//	iTotalHeliDistanceSinceRefuel = 0;
	iTotalAccumulatedCostByPlayer = 0;

	fHelicopterDestroyed = FALSE;

	guiHelicopterSkyriderTalkState = 0;
	guiTimeOfLastSkyriderMonologue = 0;

	fShowEstoniRefuelHighLight = FALSE;
	fShowOtherSAMHighLight = FALSE;
	fShowDrassenSAMHighLight = FALSE;
	fShowCambriaHospitalHighLight = FALSE;

	gfSkyriderEmptyHelpGiven = FALSE;

	gubHelicopterHitsTaken = 0;

	gfSkyriderSaidCongratsOnTakingSAM = FALSE;
	gubPlayerProgressSkyriderLastCommentedOn = 0;
}


BOOLEAN AddSoldierToHelicopter( SOLDIERTYPE *pSoldier )
{
	// attempt to add soldier to helicopter
	if( iHelicopterVehicleId == -1 )
	{
		// no heli yet
		return( FALSE );
	}

	// check if heli is in motion or if on the ground
	if( ( fHelicopterIsAirBorne == TRUE ) && (fHoveringHelicopter == FALSE ) )
	{
		return( FALSE );
	}

	// is the heli returning to base?..he ain't waiting if so
	if( fHeliReturnStraightToBase == TRUE )
	{
		return( FALSE );
	}


	// attempt to add to vehicle
	return( PutSoldierInVehicle( pSoldier, ( INT8 )iHelicopterVehicleId ) );
}


BOOLEAN RemoveSoldierFromHelicopter( SOLDIERTYPE *pSoldier )
{
	// attempt to add soldier to helicopter
	if( iHelicopterVehicleId == -1 )
	{
		// no heli yet
		return( FALSE );
	}

	// check if heli is in motion or if on the ground
	if( ( fHelicopterIsAirBorne == TRUE ) && (fHoveringHelicopter == FALSE ) )
	{
		return( FALSE );
	}

	// is the heli returning to base?..he ain't waiting if so
	if( fHeliReturnStraightToBase == TRUE )
	{
		return( FALSE );
	}

	pSoldier->sSectorX = pVehicleList[ iHelicopterVehicleId ].sSectorX;
	pSoldier->sSectorY = pVehicleList[ iHelicopterVehicleId ].sSectorY;
	pSoldier->bSectorZ = 0;

	// reset between sectors
	pSoldier->flags.fBetweenSectors = FALSE;


	// remove from the vehicle
	return( TakeSoldierOutOfVehicle( pSoldier ) );
}



BOOLEAN HandleHeliEnteringSector( INT16 sX, INT16 sY )
{
	UINT8 ubNumEnemies;


	// check for SAM attack upon the chopper.	If it's destroyed by the attack, do nothing else here
	if( HandleSAMSiteAttackOfHelicopterInSector( sX, sY ) == TRUE )
	{
		// destroyed
		return( TRUE );
	}


	// count how many enemies are camped there or passing through
	ubNumEnemies = NumEnemiesInSector( sX, sY );

	// any baddies?
	if( ubNumEnemies > 0 )
	{
		// if the player didn't know about these prior to the chopper's arrival
		if( WhatPlayerKnowsAboutEnemiesInSector( sX, sY ) == KNOWS_NOTHING )
		{
			// but Skyrider notices them
			if ( DoesSkyriderNoticeEnemiesInSector( ubNumEnemies ) == TRUE )
			{
				// if just passing through (different quotes are used below if it's his final destination)
				if( !EndOfHelicoptersPath( ) )
				{
					// stop time compression and inform player that there are enemies in the sector below
					StopTimeCompression();

					if( Random( 2 ) )
					{
						HeliCharacterDialogue( pSkyRider, ENEMIES_SPOTTED_EN_ROUTE_IN_FRIENDLY_SECTOR_A );
					}
					else
					{
						HeliCharacterDialogue( pSkyRider, ENEMIES_SPOTTED_EN_ROUTE_IN_FRIENDLY_SECTOR_B );
					}
				}

				// make their presence appear on the map while Skyrider remains in the sector
				SectorInfo[ SECTOR( sX, sY ) ].uiFlags |= SF_SKYRIDER_NOTICED_ENEMIES_HERE;
			}
		}
	}


	// player pays for travel if Skyrider is NOT returning to base (even if empty while scouting/going for pickup)
	if ( fHeliReturnStraightToBase == FALSE )
	{
		// charge cost for flying another sector
		iTotalAccumulatedCostByPlayer += GetCostOfPassageForHelicopter( sX, sY );
	}

	// accumulate distance travelled
//	AddSectorToHelicopterDistanceTravelled( );


	// check if heli has any real path left
	if( EndOfHelicoptersPath( ) )
	{
		// start hovering
		StartHoverTime( );

		// if sector is safe, or Skyrider MUST land anyway (returning to base)
		if ( ( ubNumEnemies == 0 ) || fHeliReturnStraightToBase )
		{
			// if he has passengers, or he's not going straight to base, tell player he's arrived
			// (i.e. don't say anything nor stop time compression if he's empty and just returning to base)
			if ( ( GetNumberOfPassengersInHelicopter() > 0 ) || !fHeliReturnStraightToBase )
			{
				// arrived at destination
				if(gGameSettings.fOptions[ TOPTION_SILENT_SKYRIDER ] == FALSE) HeliCharacterDialogue( pSkyRider, ARRIVED_IN_NON_HOSTILE_SECTOR );
				StopTimeCompression();
			}

			// destination reached, payment due.	If player can't pay, mercs get kicked off and heli flies to base!
			PaySkyriderBill();
		}
		else
		{
			// Say quote: "Gonna have to abort.	Enemies below"
			if(gGameSettings.fOptions[ TOPTION_SILENT_SKYRIDER ] == FALSE) HeliCharacterDialogue( pSkyRider, ARRIVED_IN_HOSTILE_SECTOR );
			StopTimeCompression();
		}

		if( CheckForArrivalAtRefuelPoint( ) )
		{
			ReFuelHelicopter( );
		}
	}

	return( FALSE );
}

/*
INT32 GetTotalDistanceHelicopterCanTravel( void )
{
	return( MAX_HELICOPTER_DISTANCE );
}

INT32 HowFarHelicopterhasTravelledSinceRefueling( void )
{
	// return total distance
	return( iTotalHeliDistanceSinceRefuel );
}

INT32 HowFurtherCanHelicopterTravel( void )
{
	// how many sectors further can we go on remaining fuel?
	return( MAX_HELICOPTER_DISTANCE - ( HowFarHelicopterhasTravelledSinceRefueling( ) + DistanceOfIntendedHelicopterPath( ) ) );
}

void AddSectorToHelicopterDistanceTravelled( void )
{
	// up the distance
	iTotalHeliDistanceSinceRefuel++;

	//reset hover time
	uiStartHoverTime = 0;

	return;
}
*/

INT32 LocationOfNearestRefuelPoint( BOOLEAN fNotifyPlayerIfNoSafeLZ )
{
	INT32 iClosestLocation = -1;

	// try to find one, any one under the players control
	iClosestLocation = FindLocationOfClosestRefuelSite( TRUE );

	// no go?...then find
	if( iClosestLocation == -1 )
	{
		if( fNotifyPlayerIfNoSafeLZ )
		{
			// no refueling sites available, might wanna warn player about this
			ScreenMsg( FONT_MCOLOR_DKRED, MSG_INTERFACE, pHelicopterEtaStrings[ 5 ] );
		}

		// find the closest location regardless
		iClosestLocation = FindLocationOfClosestRefuelSite( FALSE );
	}

	// always returns a valid refuel point, picking a hostile one if unavoidable
	Assert( iClosestLocation != -1 );

	return( iClosestLocation );
}

INT32 FindLocationOfClosestRefuelSite( BOOLEAN fMustBeAvailable )
{
	INT32 iShortestDistance = 9999;
	INT32 iCounter = 0;
	INT32 iDistance = 9999;
	INT32 iClosestLocation = -1;

	// find shortest distance to refuel site
	for( iCounter = 0; iCounter < NUMBER_OF_REFUEL_SITES; iCounter++ )
	{
		// if this refuelling site is available
		if( ( fRefuelingSiteAvailable[ iCounter ] ) || ( fMustBeAvailable == FALSE ) )
		{
			// find if sector is under control, find distance from heli to it
			iDistance = ( INT32 )FindStratPath( ( INT16 )( CALCULATE_STRATEGIC_INDEX( pVehicleList[ iHelicopterVehicleId ].sSectorX , pVehicleList[ iHelicopterVehicleId ].sSectorY ) ), ( INT16 )( CALCULATE_STRATEGIC_INDEX( ubRefuelList[ iCounter ][ 0 ], ubRefuelList[ iCounter ][ 1 ] ) ) , pVehicleList[ iHelicopterVehicleId ].ubMovementGroup, FALSE );

			if( iDistance < iShortestDistance )
			{
				// shorter, copy over
				iShortestDistance = iDistance;
				iClosestLocation = iCounter;
			}
		}
	}

	// return the location
	return( iClosestLocation );
}


INT32 DistanceToNearestRefuelPoint( INT16 sX, INT16 sY )
{
	INT32 iClosestLocation;
	INT32 iDistance;

	// don't notify player during these checks!
	iClosestLocation = LocationOfNearestRefuelPoint( FALSE );

	iDistance = ( INT32 )FindStratPath( ( INT16 )( CALCULATE_STRATEGIC_INDEX( sX, sY ) ), ( INT16 )( CALCULATE_STRATEGIC_INDEX( ubRefuelList[ iClosestLocation ][ 0 ], ubRefuelList[ iClosestLocation ][ 1 ] ) ) , pVehicleList[ iHelicopterVehicleId ].ubMovementGroup, FALSE );
	return( iDistance );
}


/*
BOOLEAN IsSectorOutOfTheWay( INT16 sX, INT16 sY )
{
	// check distance to nearest refuel point
	if( DistanceToNearestRefuelPoint( sX, sY ) > HowFurtherCanHelicopterTravel( ) )
	{
		return( TRUE );
	}


	return( FALSE );
}
*/



void ReFuelHelicopter( void )
{
	// land, pay the man, and refuel

	LandHelicopter( );

/*
	AddStrategicEvent( EVENT_HELICOPTER_DONE_REFUELING, GetWorldTotalMin() + REFUEL_HELICOPTER_DELAY, 0 );

	// reset distance traveled
	iTotalHeliDistanceSinceRefuel = 0;
*/

	return;
}



INT32 GetCostOfPassageForHelicopter( INT16 sX, INT16 sY )
{
	// check if sector is air controlled or not, if so, then normal cost, otherwise increase the cost
	INT32 iCost = 0;

	// if they don't control it
	if( StrategicMap[ CALCULATE_STRATEGIC_INDEX( sX, sY ) ].fEnemyAirControlled == FALSE )
	{
		iCost = COST_AIRSPACE_SAFE;
	}
	else
	{
		iCost = COST_AIRSPACE_UNSAFE;
	}

	return( iCost );
}


void SkyriderDestroyed( void )
{
	// remove any arrival events for the helicopter's group
	DeleteStrategicEvent( EVENT_GROUP_ARRIVAL, pVehicleList[ iHelicopterVehicleId ].ubMovementGroup );

	// kill eveyone on board
	KillAllInVehicle( iHelicopterVehicleId );

	// kill skyrider
	fSkyRiderAvailable = FALSE;
	SoldierSkyRider.stats.bLife = 0;
	gMercProfiles[ SKYRIDER ].bLife = 0;

	// heli no longer available
	fHelicopterAvailable = FALSE;

	// destroy helicopter
	fHelicopterDestroyed = TRUE;

	// zero out balance due
	gMercProfiles[ SKYRIDER ].iBalance = 0;
//	iTotalHeliDistanceSinceRefuel = 0;
	iTotalAccumulatedCostByPlayer = 0;

	// remove vehicle and reset
	RemoveVehicleFromList( iHelicopterVehicleId );
	iHelicopterVehicleId = -1;

	return;
}


BOOLEAN CanHelicopterFly( void )
{
	// check if heli is available for flight?

	// is the heli available
	if( fHelicopterAvailable == FALSE )
	{
		return( FALSE );
	}

	if( VehicleIdIsValid( iHelicopterVehicleId ) == FALSE )
	{
		return( FALSE );
	}

/*
	// travelled too far?
	if( iTotalHeliDistanceSinceRefuel > MAX_HELICOPTER_DISTANCE )
	{
		return( FALSE );
	}
*/

	// is the pilot alive, well, and willing to help us?
	if( IsHelicopterPilotAvailable( ) == FALSE )
	{
		return( FALSE );
	}

	if( fHeliReturnStraightToBase == TRUE )
	{
		return ( FALSE );
	}

	// grounded by enemies in sector?
	if ( CanHelicopterTakeOff() == FALSE )
	{
		return ( FALSE );
	}

	// everything A-OK!
	return( TRUE );
}

BOOLEAN IsHelicopterPilotAvailable( void )
{
	// what is state of skyrider?
	if( fSkyRiderAvailable == FALSE )
	{
		return( FALSE );
	}

	// owe any money to skyrider?
	if( gMercProfiles[ SKYRIDER ].iBalance < 0 )
	{
		return( FALSE );
	}

	// Drassen too disloyal to wanna help player?
	if ( CheckFact( FACT_LOYALTY_LOW, SKYRIDER ) )
	{
		return ( FALSE );
	}

	return( TRUE );
}


void LandHelicopter( void )
{
	// set the helictoper down, call arrive callback for this mvt group
	fHelicopterIsAirBorne = FALSE;

	// no longer hovering
	fHoveringHelicopter = FALSE;

	// reset fact that we might have returned straight here
	fHeliReturnStraightToBase = FALSE;

	HandleHelicopterOnGroundGraphic( );
	HandleHelicopterOnGroundSkyriderProfile( );

	// if we'll be unable to take off again (because there are enemies in the sector, or we owe pilot money)
	if ( CanHelicopterFly() == FALSE )
	{
		// kick everyone out!
		MoveAllInHelicopterToFootMovementGroup( );
	}
	else
	{
		// play meanwhile scene if it hasn't been used yet
		HandleKillChopperMeanwhileScene();
	}
}


void TakeOffHelicopter( void )
{
	// heli in the air
	fHelicopterIsAirBorne = TRUE;

	// no longer hovering
	fHoveringHelicopter = FALSE;

	HandleHelicopterOnGroundGraphic( );
	HandleHelicopterOnGroundSkyriderProfile( );
}



void StartHoverTime( void )
{
	// start hover in this sector
	fHoveringHelicopter = TRUE;

	// post event for x mins in future, save start time, if event time - delay = start time, then hover has gone on too long
	uiStartHoverTime = GetWorldTotalMin( );

	// post event..to call handle hover
	AddStrategicEvent( EVENT_HELICOPTER_HOVER_TOO_LONG, GetWorldTotalMin() + TIME_DELAY_FOR_HOVER_WAIT, 0 );

	return;
}

void HandleHeliHoverLong( void )
{
	// post message about hovering too long
	if( fHoveringHelicopter )
	{
		// proper event, post next one
		AddStrategicEvent( EVENT_HELICOPTER_HOVER_WAY_TOO_LONG, uiStartHoverTime + TIME_DELAY_FOR_HOVER_WAIT_TOO_LONG, 0 );

		// inform player
		HeliCharacterDialogue( pSkyRider, HOVERING_A_WHILE );

		// stop time compression if it's on
		StopTimeCompression( );
	}
	else
	{
		// reset
		uiStartHoverTime = 0;
	}
}


void HandleHeliHoverTooLong( void )
{
	// reset hover time
	uiStartHoverTime = 0;

	if( fHoveringHelicopter == FALSE )
	{
		return;
	}


	// hovered too long, inform player heli is returning to base
	HeliCharacterDialogue( pSkyRider, RETURN_TO_BASE );

	// If the sector is safe
	if ( NumEnemiesInSector( pVehicleList[ iHelicopterVehicleId ].sSectorX, pVehicleList[ iHelicopterVehicleId ].sSectorY ) == 0 )
	{
		// kick everyone out!
		MoveAllInHelicopterToFootMovementGroup( );
	}

	MakeHeliReturnToBase();
}


// check if anyone in the chopper sees any baddies in sector
BOOLEAN DoesSkyriderNoticeEnemiesInSector( UINT8 ubNumEnemies )
{
	UINT8 ubChance;

	// is the pilot and heli around?
	if( CanHelicopterFly( ) == FALSE )
	{
		return( FALSE );
	}

	// if there aren't any, he obviously won't see them
	if( ubNumEnemies == 0 )
	{
		return( FALSE );
	}

	// figure out what the chance is of seeing them
	// make this relatively accurate most of the time, to encourage helicopter scouting by making it useful
	ubChance = 60 + ubNumEnemies;

	if( PreRandom( 100 ) < ubChance )
	{
		return( TRUE );
	}

	return( FALSE );
}


// if the heli is on the move, what is the distance it will move..the length of the merc path, less the first node
INT32 DistanceOfIntendedHelicopterPath( void )
{
	PathStPtr pNode = NULL;
	INT32 iLength = 0;

	if( CanHelicopterFly( ) == FALSE )
	{
		// big number, no go
		return( 9999 );
	}

	pNode = pVehicleList[ iHelicopterVehicleId ].pMercPath;

	// any path yet?
	if( pNode != NULL )
	{
		while( pNode->pNext )
		{
			iLength++;
			pNode = pNode->pNext;
		}
	}

	pNode = MoveToBeginningOfPathList( pTempHelicopterPath );

	// any path yet?
	if( pNode != NULL )
	{
		while( pNode->pNext )
		{
			iLength++;
			pNode = pNode->pNext;
		}
	}

	return( iLength );
}



BOOLEAN CheckForArrivalAtRefuelPoint( void )
{
	// check if this is our final destination
	if ( GetLengthOfPath( pVehicleList[ iHelicopterVehicleId ].pMercPath ) > 0 )
	{
		return( FALSE );
	}

	// check if we're at a refuel site
	if( DistanceToNearestRefuelPoint( pVehicleList[ iHelicopterVehicleId ].sSectorX, pVehicleList[ iHelicopterVehicleId ].sSectorY ) > 0 )
	{
		// not at a refuel point
		return( FALSE );
	}

	// we are at a refuel site
	return( TRUE );
}



void SetUpHelicopterForMovement( void )
{
	// check if helicopter vehicle has a mvt group, if not, assign one in this sector
	INT32 iCounter = 0;

	// if no group, create one for vehicle
	if( pVehicleList[ iHelicopterVehicleId ].ubMovementGroup == 0 )
	{
		// get the vehicle a mvt group
		pVehicleList[ iHelicopterVehicleId ].ubMovementGroup = CreateNewVehicleGroupDepartingFromSector( ( UINT8 )( pVehicleList[ iHelicopterVehicleId ].sSectorX ), ( UINT8 )( pVehicleList[ iHelicopterVehicleId ].sSectorY ), iHelicopterVehicleId );

		// add everyone in vehicle to this mvt group
		for( iCounter = 0; iCounter < iSeatingCapacities[ pVehicleList[ iHelicopterVehicleId ].ubVehicleType ]; iCounter++ )
		{
			if( pVehicleList[ iHelicopterVehicleId ].pPassengers[ iCounter ] != NULL )
			{
				// add character
				AddPlayerToGroup( pVehicleList[ iHelicopterVehicleId ].ubMovementGroup, pVehicleList[ iHelicopterVehicleId ].pPassengers[ iCounter ] );
			}
		}
	}
}


BOOLEAN HeliCharacterDialogue( SOLDIERTYPE *pSoldier, UINT16 usQuoteNum )
{
	// ARM: we could just return, but since various flags are often being set it's safer to honk so it gets fixed right!
	Assert( fSkyRiderAvailable );

	return( CharacterDialogue( SKYRIDER, usQuoteNum, uiExternalStaticNPCFaces[ SKYRIDER_EXTERNAL_FACE ], DIALOGUE_EXTERNAL_NPC_UI, FALSE, FALSE ) );
}


INT32 GetNumberOfPassengersInHelicopter( void )
{
	INT32 iNumber = 0;

	if( iHelicopterVehicleId != -1 )
	{
		iNumber = GetNumberInVehicle( iHelicopterVehicleId );
	}

	return( iNumber );
}


BOOLEAN IsRefuelSiteInSector( INT16 sMapX, INT16 sMapY )
{
	INT32 iCounter = 0;

	for( iCounter = 0; iCounter < NUMBER_OF_REFUEL_SITES; iCounter++ )
	{
		if ( ( ubRefuelList[ iCounter ][ 0 ] == sMapX ) && ( ubRefuelList[ iCounter ][ 1 ] == sMapY ) )
		{
			return(TRUE);
		}
	}

	return(FALSE);
}


void UpdateRefuelSiteAvailability( void )
{
	INT32 iCounter = 0;

	// Generally, only Drassen is initially available for refuelling
	// Estoni must first be captured (although player may already have it when he gets Skyrider!)

	for( iCounter = 0; iCounter < NUMBER_OF_REFUEL_SITES; iCounter++ )
	{
		// if enemy controlled sector (ground OR air, don't want to fly into enemy air territory)
		if( ( StrategicMap[ CALCULATE_STRATEGIC_INDEX( ubRefuelList[ iCounter ][ 0 ], ubRefuelList[ iCounter ][ 1 ] ) ].fEnemyControlled == TRUE ) ||
				( StrategicMap[ CALCULATE_STRATEGIC_INDEX( ubRefuelList[ iCounter ][ 0 ], ubRefuelList[ iCounter ][ 1 ] ) ].fEnemyAirControlled == TRUE ) ||
				( ( iCounter == ESTONI_REFUELING_SITE ) && ( CheckFact( FACT_ESTONI_REFUELLING_POSSIBLE, 0 ) == FALSE ) ) )
		{
			// mark refueling site as unavailable
			fRefuelingSiteAvailable[ iCounter ] = FALSE;
		}
		else
		{
			// mark refueling site as available
			fRefuelingSiteAvailable[ iCounter ] = TRUE;

			// reactivate a grounded helicopter, if here
			if ( !fHelicopterAvailable && !fHelicopterDestroyed && fSkyRiderAvailable && ( iHelicopterVehicleId != -1 ) )
			{
				if( ( pVehicleList[ iHelicopterVehicleId ].sSectorX == ubRefuelList[ iCounter ][ 0 ]) &&
					( pVehicleList[ iHelicopterVehicleId ].sSectorY == ubRefuelList[ iCounter ][ 1 ]) )
				{
					// no longer grounded
					DoScreenIndependantMessageBox( pSkyriderText[ 5 ], MSG_BOX_FLAG_OK, NULL );
				}
			}
		}
	}
}


void SetUpHelicopterForPlayer( INT16 sX, INT16 sY )
{
	if( fSkyRiderSetUp == FALSE )
	{
		fHelicopterAvailable = TRUE;
		fSkyRiderAvailable = TRUE;

		iHelicopterVehicleId = AddVehicleToList( sX, sY, 0, HELICOPTER );

		Assert( iHelicopterVehicleId != -1 );

		SoldierSkyRider.initialize();
		SoldierSkyRider.ubProfile = SKYRIDER;
		SoldierSkyRider.stats.bLife = 80;

		pSkyRider = &( SoldierSkyRider );

		// set up for movement
		SetUpHelicopterForMovement( );
		UpdateRefuelSiteAvailability( );

		fSkyRiderSetUp = TRUE;

		gMercProfiles[ SKYRIDER ].fUseProfileInsertionInfo = FALSE;
	}

	return;
}


UINT8 MoveAllInHelicopterToFootMovementGroup( void )
{
	// take everyone out of heli and add to movement group
	INT32 iCounter = 0;
	UINT8 ubGroupId = 0;
	SOLDIERTYPE *pSoldier;
	INT8 bNewSquad;
	BOOLEAN fAnyoneAboard = FALSE;
	BOOLEAN fSuccess;
	UINT8	ubInsertionCode = 0;
	BOOLEAN fInsertionCodeSet = FALSE;
	UINT16	usInsertionData = 0;


	// put these guys on their own squad (we need to return their group ID, and can only return one, so they need a unique one
	bNewSquad = GetFirstEmptySquad();
	if ( bNewSquad == -1 )
	{
		return( 0 );
	}

	// go through list of everyone in helicopter
	for( iCounter = 0; iCounter < iSeatingCapacities[ pVehicleList[ iHelicopterVehicleId ].ubVehicleType ]; iCounter++ )
	{
		// get passenger
		pSoldier = pVehicleList[ iHelicopterVehicleId ].pPassengers[ iCounter ];

		if( pSoldier != NULL )
		{
			// better really be in there!
			Assert ( pSoldier->bAssignment == VEHICLE );
			Assert ( pSoldier->iVehicleId == iHelicopterVehicleId );

			fAnyoneAboard = TRUE;

			fSuccess = RemoveSoldierFromHelicopter( pSoldier );
			Assert( fSuccess );

			AddCharacterToSquad( pSoldier, bNewSquad );

			// ATE: OK - the ubStrategicInsertionCode is set 'cause groupArrivesInsector has been
			// called when buddy is added to a squad. However, the insertion code onlt sets set for
			// the first merc, so the rest are going to use whatever they had previously....
			if ( !fInsertionCodeSet )
			{
				ubInsertionCode = pSoldier->ubStrategicInsertionCode;
				usInsertionData = pSoldier->usStrategicInsertionData;
				fInsertionCodeSet = TRUE;
			}
			else
			{
				pSoldier->ubStrategicInsertionCode = ubInsertionCode;
				pSoldier->usStrategicInsertionData = usInsertionData;
			}
		}
	}

	if ( fAnyoneAboard )
	{
		ubGroupId = SquadMovementGroups[ bNewSquad ];
	}

	return( ubGroupId );
}



void SkyRiderTalk( UINT16 usQuoteNum )
{
	// have skyrider talk to player
	HeliCharacterDialogue( pSkyRider, usQuoteNum );

	fTeamPanelDirty = TRUE;

	return;
}


void HandleSkyRiderMonologueEvent( UINT32 uiEventCode, UINT32 uiSpecialCode )
{
	// will handle the skyrider monologue about where the SAM sites are and what not

	TurnOnAirSpaceMode();

	switch( uiEventCode )
	{
		case( SKYRIDER_MONOLOGUE_EVENT_DRASSEN_SAM_SITE ):
			SetExternMapscreenSpeechPanelXY( DEFAULT_EXTERN_PANEL_X_POS, 117 );
			HandleSkyRiderMonologueAboutDrassenSAMSite( uiSpecialCode );
			break;
		case SKYRIDER_MONOLOGUE_EVENT_CAMBRIA_HOSPITAL:
			SetExternMapscreenSpeechPanelXY( DEFAULT_EXTERN_PANEL_X_POS, 172 );
			HandleSkyRiderMonologueAboutCambriaHospital( uiSpecialCode );
			break;
		case( SKYRIDER_MONOLOGUE_EVENT_OTHER_SAM_SITES ):
			SetExternMapscreenSpeechPanelXY( 335, DEFAULT_EXTERN_PANEL_Y_POS );
			HandleSkyRiderMonologueAboutOtherSAMSites( uiSpecialCode );
			break;
		case( SKYRIDER_MONOLOGUE_EVENT_ESTONI_REFUEL ):
			SetExternMapscreenSpeechPanelXY( DEFAULT_EXTERN_PANEL_X_POS, DEFAULT_EXTERN_PANEL_Y_POS );
			HandleSkyRiderMonologueAboutEstoniRefuel( uiSpecialCode );
			break;
	}

	// update time
	guiTimeOfLastSkyriderMonologue = GetWorldTotalMin();
}


void HandleSkyRiderMonologueAboutEstoniRefuel( UINT32 uiSpecialCode )
{
	// once estoni is free tell player about refueling

	switch( uiSpecialCode )
	{
		case( 0 ):
			CharacterDialogueWithSpecialEvent( SKYRIDER, SPIEL_ABOUT_ESTONI_AIRSPACE, uiExternalStaticNPCFaces[ SKYRIDER_EXTERNAL_FACE ] , DIALOGUE_EXTERNAL_NPC_UI , FALSE , FALSE , DIALOGUE_SPECIAL_EVENT_SKYRIDERMAPSCREENEVENT ,SKYRIDER_MONOLOGUE_EVENT_ESTONI_REFUEL, 1 );
			// if special event data 2 is true, then do dialogue, else this is just a trigger for an event
		CharacterDialogue( SKYRIDER, SPIEL_ABOUT_ESTONI_AIRSPACE, uiExternalStaticNPCFaces[ SKYRIDER_EXTERNAL_FACE ], DIALOGUE_EXTERNAL_NPC_UI, FALSE, FALSE );

			CharacterDialogueWithSpecialEvent( SKYRIDER, SPIEL_ABOUT_ESTONI_AIRSPACE, uiExternalStaticNPCFaces[ SKYRIDER_EXTERNAL_FACE ] , DIALOGUE_EXTERNAL_NPC_UI , FALSE , FALSE , DIALOGUE_SPECIAL_EVENT_SKYRIDERMAPSCREENEVENT ,SKYRIDER_MONOLOGUE_EVENT_ESTONI_REFUEL, 2 );
			break;

		case( 1 ):
			// highlight Estoni
			fShowEstoniRefuelHighLight = TRUE;
			break;

		case( 2 ):
			fShowEstoniRefuelHighLight = FALSE;
			break;
	}
	return;
}


void HandleSkyRiderMonologueAboutDrassenSAMSite( UINT32 uiSpecialCode )
{
	switch( uiSpecialCode )
	{
		case( 0 ):
			//gpCurrentTalkingFace = &gFacesData[ uiExternalStaticNPCFaces[ SKYRIDER_EXTERNAL_FACE ] ];
			//gubCurrentTalkingID = SKYRIDER;

			// if special event data 2 is true, then do dialogue, else this is just a trigger for an event
			CharacterDialogue( SKYRIDER, MENTION_DRASSEN_SAM_SITE, uiExternalStaticNPCFaces[ SKYRIDER_EXTERNAL_FACE ], DIALOGUE_EXTERNAL_NPC_UI, FALSE, FALSE );
			CharacterDialogueWithSpecialEvent( SKYRIDER, MENTION_DRASSEN_SAM_SITE, uiExternalStaticNPCFaces[ SKYRIDER_EXTERNAL_FACE ], DIALOGUE_EXTERNAL_NPC_UI , FALSE , TRUE , DIALOGUE_SPECIAL_EVENT_SKYRIDERMAPSCREENEVENT ,SKYRIDER_MONOLOGUE_EVENT_DRASSEN_SAM_SITE, 1 );

			if( SAMSitesUnderPlayerControl( SAM_2_X, SAM_2_Y ) == FALSE )
			{
				CharacterDialogue( SKYRIDER, SECOND_HALF_OF_MENTION_DRASSEN_SAM_SITE, uiExternalStaticNPCFaces[ SKYRIDER_EXTERNAL_FACE ], DIALOGUE_EXTERNAL_NPC_UI, FALSE, FALSE );
			}
			else
			{
				// Ian says don't use the SAM site quote unless player has tried flying already
				if ( CheckFact( FACT_SKYRIDER_USED_IN_MAPSCREEN, SKYRIDER ) )
				{
					CharacterDialogue( SKYRIDER, SAM_SITE_TAKEN, uiExternalStaticNPCFaces[ SKYRIDER_EXTERNAL_FACE ], DIALOGUE_EXTERNAL_NPC_UI, FALSE, FALSE );
					gfSkyriderSaidCongratsOnTakingSAM = TRUE;
				}
			}

			CharacterDialogueWithSpecialEvent( SKYRIDER, MENTION_DRASSEN_SAM_SITE, uiExternalStaticNPCFaces[ SKYRIDER_EXTERNAL_FACE ], DIALOGUE_EXTERNAL_NPC_UI , FALSE , TRUE , DIALOGUE_SPECIAL_EVENT_SKYRIDERMAPSCREENEVENT ,SKYRIDER_MONOLOGUE_EVENT_DRASSEN_SAM_SITE, 2 );
			break;

		case( 1 ):
			// highlight Drassen SAM site sector
			fShowDrassenSAMHighLight = TRUE;
			SetSAMSiteAsFound( SAM_SITE_TWO );
			break;

		case( 2 ):
			fShowDrassenSAMHighLight = FALSE;
			break;
	}
	return;
}


void HandleSkyRiderMonologueAboutCambriaHospital( UINT32 uiSpecialCode )
{
	switch( uiSpecialCode )
	{
		case( 0 ):
			//gpCurrentTalkingFace = &gFacesData[ uiExternalStaticNPCFaces[ SKYRIDER_EXTERNAL_FACE ] ];
			//gubCurrentTalkingID = SKYRIDER;

			// if special event data 2 is true, then do dialogue, else this is just a trigger for an event
			CharacterDialogue( SKYRIDER, MENTION_HOSPITAL_IN_CAMBRIA, uiExternalStaticNPCFaces[ SKYRIDER_EXTERNAL_FACE ], DIALOGUE_EXTERNAL_NPC_UI, FALSE, FALSE );
			CharacterDialogueWithSpecialEvent( SKYRIDER, MENTION_HOSPITAL_IN_CAMBRIA, uiExternalStaticNPCFaces[ SKYRIDER_EXTERNAL_FACE ], DIALOGUE_EXTERNAL_NPC_UI , FALSE , TRUE , DIALOGUE_SPECIAL_EVENT_SKYRIDERMAPSCREENEVENT ,SKYRIDER_MONOLOGUE_EVENT_CAMBRIA_HOSPITAL, 1 );

			// highlight Drassen hospital sector
			fShowCambriaHospitalHighLight = TRUE;
			break;

		case( 1 ):
			fShowCambriaHospitalHighLight = FALSE;
			break;
	}
	return;
}


void HandleSkyRiderMonologueAboutOtherSAMSites( UINT32 uiSpecialCode )
{
	// handle skyrider telling player about other sam sites..on fifth hiring or after one near drassen is taken out

	switch( uiSpecialCode )
	{
		case( 0 ):
			// do quote 21
			gpCurrentTalkingFace = &gFacesData[ uiExternalStaticNPCFaces[ SKYRIDER_EXTERNAL_FACE ] ];
			gubCurrentTalkingID = SKYRIDER;

			// if special event data 2 is true, then do dialogue, else this is just a trigger for an event
			CharacterDialogue( SKYRIDER, SPIEL_ABOUT_OTHER_SAM_SITES, uiExternalStaticNPCFaces[ SKYRIDER_EXTERNAL_FACE ], DIALOGUE_EXTERNAL_NPC_UI, FALSE, FALSE );
			CharacterDialogueWithSpecialEvent( SKYRIDER, SPIEL_ABOUT_OTHER_SAM_SITES, uiExternalStaticNPCFaces[ SKYRIDER_EXTERNAL_FACE ] , DIALOGUE_EXTERNAL_NPC_UI , FALSE , FALSE , DIALOGUE_SPECIAL_EVENT_SKYRIDERMAPSCREENEVENT ,SKYRIDER_MONOLOGUE_EVENT_OTHER_SAM_SITES, 1 );

			CharacterDialogue( SKYRIDER, SECOND_HALF_OF_SPIEL_ABOUT_OTHER_SAM_SITES, uiExternalStaticNPCFaces[ SKYRIDER_EXTERNAL_FACE ], DIALOGUE_EXTERNAL_NPC_UI, FALSE, FALSE );
			CharacterDialogueWithSpecialEvent( SKYRIDER, SPIEL_ABOUT_OTHER_SAM_SITES, uiExternalStaticNPCFaces[ SKYRIDER_EXTERNAL_FACE ] , DIALOGUE_EXTERNAL_NPC_UI , FALSE , FALSE , DIALOGUE_SPECIAL_EVENT_SKYRIDERMAPSCREENEVENT ,SKYRIDER_MONOLOGUE_EVENT_OTHER_SAM_SITES, 2 );

			break;

		case( 1 ):
			// highlight other SAMs
			fShowOtherSAMHighLight = TRUE;
			// reveal other 3 SAM sites
			SetSAMSiteAsFound( SAM_SITE_ONE );
			SetSAMSiteAsFound( SAM_SITE_THREE );
			SetSAMSiteAsFound( SAM_SITE_FOUR );
			break;

		case( 2 ):
			fShowOtherSAMHighLight = FALSE;
			break;
	}
	return;
}


void CheckAndHandleSkyriderMonologues( void )
{
	// wait at least this many days between Skyrider monologues
	if ( ( GetWorldTotalMin() - guiTimeOfLastSkyriderMonologue ) >= ( MIN_DAYS_BETWEEN_SKYRIDER_MONOLOGUES * 24 * 60 ) )
	{
		if( guiHelicopterSkyriderTalkState == 0 )
		{
			HandleSkyRiderMonologueEvent( SKYRIDER_MONOLOGUE_EVENT_DRASSEN_SAM_SITE, 0 );
			guiHelicopterSkyriderTalkState = 1;
		}
		else if( guiHelicopterSkyriderTalkState == 1 )
		{
			// if enemy still controls the Cambria hospital sector
			if( StrategicMap[ CALCULATE_STRATEGIC_INDEX( HOSPITAL_SECTOR_X, HOSPITAL_SECTOR_Y ) ].fEnemyControlled )
			{
				HandleSkyRiderMonologueEvent( SKYRIDER_MONOLOGUE_EVENT_CAMBRIA_HOSPITAL, 0 );
			}
			// advance state even if player already has Cambria's hospital sector!!!
			guiHelicopterSkyriderTalkState = 2;
		}
		else if( guiHelicopterSkyriderTalkState == 2 )
		{
			// wait until player has taken over a SAM site before saying this and advancing state
			if ( gfSkyriderSaidCongratsOnTakingSAM )
			{
				HandleSkyRiderMonologueEvent( SKYRIDER_MONOLOGUE_EVENT_OTHER_SAM_SITES, 0 );
				guiHelicopterSkyriderTalkState = 3;
			}
		}
		else if( guiHelicopterSkyriderTalkState == 3 )
		{
			// wait until Estoni refuelling site becomes available
			if ( fRefuelingSiteAvailable[ ESTONI_REFUELING_SITE ] )
			{
				HandleSkyRiderMonologueEvent( SKYRIDER_MONOLOGUE_EVENT_ESTONI_REFUEL, 0 );
				guiHelicopterSkyriderTalkState = 4;
			}
		}
	}
}


void HandleAnimationOfSectors( void )
{
	BOOLEAN fSkipSpeakersLocator = FALSE;
	// these don't need to be saved, they merely turn off the highlights after they stop flashing
	static BOOLEAN fOldShowDrassenSAMHighLight = FALSE;
	static BOOLEAN fOldShowCambriaHospitalHighLight = FALSE;
	static BOOLEAN fOldShowEstoniRefuelHighLight = FALSE;
	static BOOLEAN fOldShowOtherSAMHighLight = FALSE;

	// find out which mode we are in and animate for that mode

	// Drassen SAM site
	if( fShowDrassenSAMHighLight )
	{
		fOldShowDrassenSAMHighLight = TRUE;
		// Drassen's SAM site is #3
		HandleBlitOfSectorLocatorIcon( SAM_2_X, SAM_2_Y, 0, LOCATOR_COLOR_RED );
		fSkipSpeakersLocator = TRUE;
	}
	else if( fOldShowDrassenSAMHighLight )
	{
		fOldShowDrassenSAMHighLight = FALSE;
		fMapPanelDirty = TRUE;
	}

	// Cambria hospital
	if( fShowCambriaHospitalHighLight )
	{
		fOldShowCambriaHospitalHighLight = TRUE;
		HandleBlitOfSectorLocatorIcon( HOSPITAL_SECTOR_X, HOSPITAL_SECTOR_Y, 0, LOCATOR_COLOR_RED );
		fSkipSpeakersLocator = TRUE;
	}
	else if( fOldShowCambriaHospitalHighLight )
	{
		fOldShowCambriaHospitalHighLight = FALSE;
		fMapPanelDirty = TRUE;
	}

	// show other SAM sites
	if( fShowOtherSAMHighLight )
	{
		fOldShowOtherSAMHighLight = TRUE;
		HandleBlitOfSectorLocatorIcon( SAM_1_X, SAM_1_Y, 0, LOCATOR_COLOR_RED );
		HandleBlitOfSectorLocatorIcon( SAM_3_X, SAM_3_Y, 0, LOCATOR_COLOR_RED );
		HandleBlitOfSectorLocatorIcon( SAM_4_X, SAM_4_Y, 0, LOCATOR_COLOR_RED );
		fSkipSpeakersLocator = TRUE;
	}
	else if( fOldShowOtherSAMHighLight )
	{
		fOldShowOtherSAMHighLight = FALSE;
		fMapPanelDirty = TRUE;
	}

	// show Estoni site
	if( fShowEstoniRefuelHighLight )
	{
		fOldShowEstoniRefuelHighLight = TRUE;
		HandleBlitOfSectorLocatorIcon( ubRefuelList[ ESTONI_REFUELING_SITE ][ 0 ], ubRefuelList[ ESTONI_REFUELING_SITE ][ 1 ], 0, LOCATOR_COLOR_RED );
		fSkipSpeakersLocator = TRUE;
	}
	else if( fOldShowEstoniRefuelHighLight )
	{
		fOldShowEstoniRefuelHighLight = FALSE;
		fMapPanelDirty = TRUE;
	}


	// don't show sector locator over the speaker's sector if he is talking about another sector - it's confusing
	if ( !fSkipSpeakersLocator )
	{
		switch( gubBlitSectorLocatorCode )
		{
			case LOCATOR_COLOR_RED:		// normal one used for mines (will now be overriden with yellow)
				HandleBlitOfSectorLocatorIcon( gsSectorLocatorX, gsSectorLocatorY, 0, LOCATOR_COLOR_RED );
				break;
			case LOCATOR_COLOR_YELLOW: // used for all other dialogues
				HandleBlitOfSectorLocatorIcon( gsSectorLocatorX, gsSectorLocatorY, 0, LOCATOR_COLOR_YELLOW );
				break;
		}
	}

	return;
}

INT16 LastSectorInHelicoptersPath( void )
{
	// get the last sector value in the helictoper's path
	PathStPtr pNode = NULL;
	UINT32 uiLocation = 0;

	// if the heli is on the move, what is the distance it will move..the length of the merc path, less the first node
	if( CanHelicopterFly( ) == FALSE )
	{
		// big number, no go
		return( 0 );
	}

	uiLocation = pVehicleList[ iHelicopterVehicleId ].sSectorX + pVehicleList[ iHelicopterVehicleId ].sSectorY * MAP_WORLD_X;

	pNode = pVehicleList[ iHelicopterVehicleId ].pMercPath;

	// any path yet?
	if( pNode != NULL )
	{
		while( pNode)
		{
			uiLocation = pNode->uiSectorId;

			pNode = pNode->pNext;
		}
	}

	pNode = MoveToBeginningOfPathList( pTempHelicopterPath );
	// any path yet?
	if( pNode != NULL )
	{
		while( pNode )
		{
			uiLocation = pNode->uiSectorId;

			pNode = pNode->pNext;
		}
	}

	return( ( INT16 )uiLocation );
}


/*
INT32 GetTotalCostOfHelicopterTrip( void )
{
	// get cost of helicopter trip

	PathStPtr pNode = NULL, pTempNode = NULL;
	UINT32 uiCost = 0;
	UINT32 uiLastTempPathSectorId = 0;
	UINT32 iClosestRefuelPoint = 0;
	UINT32 uiStartSectorNum = 0;
	UINT32 uiLength = 0;

	// if the heli is on the move, what is the distance it will move..the length of the merc path, less the first node
	if( CanHelicopterFly( ) == FALSE )
	{
		// big number, no go
		return( 0 );
	}

	pNode = pVehicleList[ iHelicopterVehicleId ].pMercPath;

	// any path yet?
	uiLastTempPathSectorId = pVehicleList[ iHelicopterVehicleId ].sSectorX + pVehicleList[ iHelicopterVehicleId ].sSectorY * MAP_WORLD_X;
	uiStartSectorNum = uiLastTempPathSectorId;

	if( pNode )
	{
		pNode = pNode->pNext;
	}

	if( pNode != NULL )
	{
		while( pNode)
		{
			if( uiLength == 0 )
			{
				if( pNode->pNext )
				{
					if( uiLastTempPathSectorId == pNode->pNext->uiSectorId )
					{
						// do nothing
					}
					else
					{
						uiCost += GetCostOfPassageForHelicopter( ( UINT16 )( pNode->uiSectorId % MAP_WORLD_X ), ( UINT16 ) ( pNode->uiSectorId / MAP_WORLD_X ) );
					}
				}
				else
				{
					uiCost += GetCostOfPassageForHelicopter( ( UINT16 )( pNode->uiSectorId % MAP_WORLD_X ), ( UINT16 ) ( pNode->uiSectorId / MAP_WORLD_X ) );
				}
			}
			else
			{
				uiCost += GetCostOfPassageForHelicopter( ( UINT16 )( pNode->uiSectorId % MAP_WORLD_X ), ( UINT16 ) ( pNode->uiSectorId / MAP_WORLD_X ) );
			}

			uiLength++;

			uiLastTempPathSectorId = pNode->uiSectorId;
			pNode = pNode->pNext;
		}
	}


	pNode = NULL;

	if( pTempHelicopterPath )
	{
		pNode = MoveToBeginningOfPathList( pTempHelicopterPath );
	}

	if( pNode )
	{
		pNode = pNode->pNext;
	}

	// any path yet?
	if( pNode != NULL )
	{
		while( pNode )
		{
			if( uiLength == 0 )
			{
				if( pNode->pNext )
				{
					if( uiLastTempPathSectorId == pNode->pNext->uiSectorId )
					{
						// do nothing
					}
					else
					{
						uiCost += GetCostOfPassageForHelicopter( ( UINT16 )( pNode->uiSectorId % MAP_WORLD_X ), ( UINT16 ) ( pNode->uiSectorId / MAP_WORLD_X ) );
					}
				}
				else
				{
					uiCost += GetCostOfPassageForHelicopter( ( UINT16 )( pNode->uiSectorId % MAP_WORLD_X ), ( UINT16 ) ( pNode->uiSectorId / MAP_WORLD_X ) );
				}
			}
			else
			{
				uiCost += GetCostOfPassageForHelicopter( ( UINT16 )( pNode->uiSectorId % MAP_WORLD_X ), ( UINT16 ) ( pNode->uiSectorId / MAP_WORLD_X ) );
			}

			uiLength++;

			//uiCost += GetCostOfPassageForHelicopter( ( UINT16 ) ( pNode->uiSectorId % MAP_WORLD_X ), ( UINT16 ) ( pNode->uiSectorId / MAP_WORLD_X ) );
			uiLastTempPathSectorId = pNode->uiSectorId;
			pNode = pNode->pNext;
		}
	}

	iClosestRefuelPoint = ( INT16 )( CALCULATE_STRATEGIC_INDEX( ubRefuelList[ LocationOfNearestRefuelPoint( FALSE ) ][ 0 ], ubRefuelList[ LocationOfNearestRefuelPoint( FALSE ) ][ 1 ] ) );

	pNode = NULL;

	if( uiLastTempPathSectorId != iClosestRefuelPoint )
	{
		pNode = BuildAStrategicPath( pNode, ( INT16 )( uiLastTempPathSectorId ), ( INT16 )iClosestRefuelPoint, pVehicleList[ iHelicopterVehicleId ].ubMovementGroup, FALSE );
//		pNode = BuildAStrategicPath( pNode, ( INT16 )( uiLastTempPathSectorId ), ( INT16 )iClosestRefuelPoint, pVehicleList[ iHelicopterVehicleId ].ubMovementGroup, FALSE, TRUE );

		pNode = MoveToBeginningOfPathList( pNode );
	}

	pTempNode = pNode;
	uiLength = 0;

	if( pTempNode )
	{
		pTempNode = pTempNode->pNext;
	}

	while( pTempNode )
	{
		if( uiLength == 0 )
			{
				if( pTempNode->pNext )
				{
					if( uiLastTempPathSectorId == pNode->pNext->uiSectorId )
					{
						// do nothing
					}
					else
					{
						uiCost += GetCostOfPassageForHelicopter( ( UINT16 )( pTempNode->uiSectorId % MAP_WORLD_X ), ( UINT16 ) ( pTempNode->uiSectorId / MAP_WORLD_X ) );
					}
				}
				else
				{
					uiCost += GetCostOfPassageForHelicopter( ( UINT16 )( pTempNode->uiSectorId % MAP_WORLD_X ), ( UINT16 ) ( pTempNode->uiSectorId / MAP_WORLD_X ) );
				}
			}
			else
			{
				uiCost += GetCostOfPassageForHelicopter( ( UINT16 )( pTempNode->uiSectorId % MAP_WORLD_X ), ( UINT16 ) ( pTempNode->uiSectorId / MAP_WORLD_X ) );
			}

		uiLength++;
		pTempNode = pTempNode->pNext;
	}

	return( ( INT32 )uiCost );
}
*/


void HandleHelicopterOnGroundGraphic( void )
{
	UINT8					ubSite = 0;
	SOLDIERTYPE		*pSoldier;

	// no worries if underground
	if (gbWorldSectorZ != 0 )
	{
		return;
	}

	for( ubSite = 0; ubSite < NUMBER_OF_REFUEL_SITES; ubSite++ )
	{
		// is this refueling site sector the loaded sector ?
		if ( ( ubRefuelList[ ubSite ][ 0 ] == gWorldSectorX ) && ( ubRefuelList[ ubSite ][ 1 ] == gWorldSectorY ) )
		{
			// YES, so find out if the chopper is landed here
			if ( IsHelicopterOnGroundAtRefuelingSite( ubSite ) )
			{
				// Add....
				AddHelicopterToMaps( TRUE, ubSite );
				// ATE: Add skyridder too
				// ATE: only if hired......
				if ( fHelicopterAvailable	)
				{
					gMercProfiles[ SKYRIDER ].sSectorX = gWorldSectorX;
					gMercProfiles[ SKYRIDER ].sSectorY = gWorldSectorY;
					gMercProfiles[ SKYRIDER ].ubStrategicInsertionCode = INSERTION_CODE_GRIDNO;
					gMercProfiles[ SKYRIDER ].usStrategicInsertionData = sRefuelStartGridNo[ubSite] - 639; // Stand near the heli
					gMercProfiles[ SKYRIDER ].fUseProfileInsertionInfo = TRUE;
				}
			}
			else
			{
				AddHelicopterToMaps( FALSE, ubSite );
				// ATE: Remove skyridder....
				if ( fHelicopterAvailable	)
				{
					gMercProfiles[ SKYRIDER ].sSectorX = 0;
					gMercProfiles[ SKYRIDER ].sSectorY = 0;

					// see if we can find him and remove him if so....
					pSoldier = FindSoldierByProfileID( SKYRIDER, FALSE );

			// ATE: Don't do this if buddy is on our team!
					if ( pSoldier != NULL && pSoldier->bTeam != gbPlayerNum )
					{
						TacticalRemoveSoldier( pSoldier->ubID );
					}
				}
			}

			// Invalidate rendering
			InvalidateWorldRedundency( );

			// can't be 2 places at once!
			break;
		}
	}
}


void HandleHelicopterOnGroundSkyriderProfile( void )
{
	UINT8					ubSite = 0;
	SOLDIERTYPE		*pSoldier;

	// no worries if underground
	if (gbWorldSectorZ != 0 )
	{
		return;
	}

	for( ubSite = 0; ubSite < NUMBER_OF_REFUEL_SITES; ubSite++ )
	{
		// is this refueling site sector the loaded sector ?
		if ( ( ubRefuelList[ ubSite ][ 0 ] == gWorldSectorX ) && ( ubRefuelList[ ubSite ][ 1 ] == gWorldSectorY ) )
		{
			// YES, so find out if the chopper is landed here
			if ( IsHelicopterOnGroundAtRefuelingSite( ubSite ) )
			{
				// ATE: Add skyridder too
				// ATE: only if hired......
				if ( fHelicopterAvailable	)
				{
					gMercProfiles[ SKYRIDER ].sSectorX = gWorldSectorX;
					gMercProfiles[ SKYRIDER ].sSectorY = gWorldSectorY;
				}
			}
			else
			{
				// ATE: Remove skyridder....
				if ( fHelicopterAvailable	)
				{
					gMercProfiles[ SKYRIDER ].sSectorX = 0;
					gMercProfiles[ SKYRIDER ].sSectorY = 0;

					// see if we can find him and remove him if so....
					pSoldier = FindSoldierByProfileID( SKYRIDER, FALSE );

			// ATE: Don't do this if buddy is on our team!
					if ( pSoldier != NULL && pSoldier->bTeam != gbPlayerNum )
					{
						TacticalRemoveSoldier( pSoldier->ubID );
					}
				}
			}

			// can't be 2 places at once!
			break;
		}
	}
}


BOOLEAN IsHelicopterOnGroundAtRefuelingSite( UINT8 ubRefuelingSite )
{
	if ( fHelicopterDestroyed )
	{
		return(FALSE);
	}

	if ( fHelicopterIsAirBorne )
	{
		return(FALSE);
	}

	// if we haven't even met SkyRider
	if ( !fSkyRiderSetUp )
	{
		// then it's always at Drassen
		if ( ubRefuelingSite == DRASSEN_REFUELING_SITE )
		{
			return(TRUE);
		}
		else
		{
			return(FALSE);
		}
	}

	// skyrider is setup, helicopter isn't destroyed, so this ought to be a valid vehicle id
	Assert( iHelicopterVehicleId != -1 );

	// on the ground, but is it at this site or at another one?
	if ( ( ubRefuelList[ ubRefuelingSite ][ 0 ] == pVehicleList[ iHelicopterVehicleId ].sSectorX ) &&
			( ubRefuelList[ ubRefuelingSite ][ 1 ] == pVehicleList[ iHelicopterVehicleId ].sSectorY ) )
	{
		return(TRUE);
	}

	// not here
	return(FALSE);
}

// drassen airport sector
#define AIRPORT_X 13
#define AIRPORT_Y 2

// meduna airport sector
#define AIRPORT2_X 3
#define AIRPORT2_Y 14

BOOLEAN WillAirRaidBeStopped( INT16 sSectorX, INT16 sSectorY )
{
	UINT8 ubSamNumber = 0;
	INT8 bSAMCondition;
	UINT8 ubChance;


	DebugMsg(TOPIC_JA2,DBG_LEVEL_3,String("WillAirRaidBeStopped: enemy air controlled = %d",StrategicMap[CALCULATE_STRATEGIC_INDEX( sSectorX, sSectorY ) ].fEnemyAirControlled));
	// if enemy controls this SAM site, then it can't stop an air raid
	if( StrategicMap[CALCULATE_STRATEGIC_INDEX( sSectorX, sSectorY ) ].fEnemyAirControlled == TRUE )
	{
		return( FALSE );
	}

	if( !StrategicMap[ ( AIRPORT_X + ( MAP_WORLD_X * AIRPORT_Y ) ) ].fEnemyControlled && !StrategicMap[ ( AIRPORT2_X + ( MAP_WORLD_X * AIRPORT2_Y ) ) ].fEnemyControlled )
	{
		DebugMsg(TOPIC_JA2,DBG_LEVEL_3,String("WillAirRaidBeStopped: enemy has no more airports"));
		return( TRUE );
	}


	// which SAM controls this sector?
	ubSamNumber = ubSAMControlledSectors[ sSectorY ][ sSectorX ];

	DebugMsg(TOPIC_JA2,DBG_LEVEL_3,String("WillAirRaidBeStopped: SAM number = %d",ubSamNumber));
	// if none of them
	if (ubSamNumber == 0)
	{
		return( FALSE);
	}

	// get the condition of that SAM site (NOTE: SAM #s are 1-4, but indexes are 0-3!!!)
	Assert( ubSamNumber <= NUMBER_OF_SAMS );
	bSAMCondition = StrategicMap[ SECTOR_INFO_TO_STRATEGIC_INDEX( pSamList[ ubSamNumber - 1 ] ) ].bSAMCondition;

	// if it's too busted to work, then it can't stop an air raid
	DebugMsg(TOPIC_JA2,DBG_LEVEL_3,String("WillAirRaidBeStopped: SAM condition = %d",bSAMCondition));
	if( bSAMCondition < MIN_CONDITION_FOR_SAM_SITE_TO_WORK )
	{
		// no problem, SAM site not working
		return( FALSE );
	}


	// Friendly airspace controlled by a working SAM site, so SAM site fires a SAM at air raid bomber

	// calc chance that chopper will be shot down
	ubChance = bSAMCondition;

	// there's a fair chance of a miss even if the SAM site is in perfect working order
	if (ubChance > MAX_SAM_SITE_ACCURACY * 3) // Madd - since this is only used for enemy air raids, we'll say that good guy SAMs can have a max of 99% to hit instead of 33%
	{
		ubChance = MAX_SAM_SITE_ACCURACY * 3;
	}

	if( PreRandom( 100 ) < ubChance)
	{
		DebugMsg(TOPIC_JA2,DBG_LEVEL_3,String("WillAirRaidBeStopped: return true"));
		return( TRUE );
	}

	DebugMsg(TOPIC_JA2,DBG_LEVEL_3,String("WillAirRaidBeStopped: return false"));
	return( FALSE );
}

void HeliCrashSoundStopCallback( void *pData )
{
	SkyriderDestroyed( );
}


BOOLEAN HandleSAMSiteAttackOfHelicopterInSector( INT16 sSectorX, INT16 sSectorY )
{
	UINT8 ubSamNumber = 0;
	INT8 bSAMCondition;
	UINT8 ubChance;

	// if this sector is in friendly airspace, we're safe
	if( StrategicMap[CALCULATE_STRATEGIC_INDEX( sSectorX, sSectorY ) ].fEnemyAirControlled == FALSE )
	{
		// no problem, friendly airspace
		return( FALSE );
	}

	// which SAM controls this sector?
	ubSamNumber = ubSAMControlledSectors[ sSectorY ][ sSectorX ];

	// if none of them
	if (ubSamNumber == 0)
	{
		return( FALSE);
	}

	// get the condition of that SAM site (NOTE: SAM #s are 1-4, but indexes are 0-3!!!)
	Assert( ubSamNumber <= NUMBER_OF_SAMS );
	bSAMCondition = StrategicMap[ SECTOR_INFO_TO_STRATEGIC_INDEX( pSamList[ ubSamNumber - 1 ] ) ].bSAMCondition;

	// if the SAM site is too damaged to be a threat
	if( bSAMCondition < MIN_CONDITION_FOR_SAM_SITE_TO_WORK )
	{
		// no problem, SAM site not working
		return( FALSE );
	}

#ifdef JA2TESTVERSION
	if( fSAMSitesDisabledFromAttackingPlayer == TRUE )
	{
		return( FALSE );
	}
#endif
	// Hostile airspace controlled by a working SAM site, so SAM site fires a SAM at Skyrider!!!

	// calc chance that chopper will be shot down
	ubChance = bSAMCondition;

	// there's a fair chance of a miss even if the SAM site is in perfect working order
	if (ubChance > MAX_SAM_SITE_ACCURACY)
	{
		ubChance = MAX_SAM_SITE_ACCURACY;
	}

	if( PreRandom( 100 ) < ubChance)
	{
		// another hit!
		gubHelicopterHitsTaken++;

		// Took a hit!	Pause time so player can reconsider
		StopTimeCompression();

		// first hit?
		if ( gubHelicopterHitsTaken == 1 )
		{
			HeliCharacterDialogue( pSkyRider, HELI_TOOK_MINOR_DAMAGE );
		}
		// second hit?
		else if ( gubHelicopterHitsTaken == 2 )
		{
			// going back to base (no choice, dialogue says so)
			HeliCharacterDialogue( pSkyRider, HELI_TOOK_MAJOR_DAMAGE );
			MakeHeliReturnToBase();
		}
		// third hit!
		else
		{
			// Important: Skyrider must still be alive when he talks, so must do this before heli is destroyed!
			HeliCharacterDialogue( pSkyRider, HELI_GOING_DOWN );

			// everyone die die die
			// play sound
			if ( PlayJA2StreamingSampleFromFile( "stsounds\\blah2.wav", RATE_11025, HIGHVOLUME, 1, MIDDLEPAN, HeliCrashSoundStopCallback ) == SOUND_ERROR )
		{
		// Destroy here if we cannot play streamed sound sample....
				SkyriderDestroyed( );
		}
		else
		{
		// otherwise it's handled in the callback
		// remove any arrival events for the helicopter's group
		DeleteStrategicEvent( EVENT_GROUP_ARRIVAL, pVehicleList[ iHelicopterVehicleId ].ubMovementGroup );
		}

			// special return code indicating heli was destroyed
			return( TRUE );
		}
	}

	// still flying
	return( FALSE );
}


// are we at the end of the path for the heli?
BOOLEAN EndOfHelicoptersPath( void )
{
	if( pVehicleList[ iHelicopterVehicleId ].pMercPath == NULL )
	{
		return( TRUE );
	}

	if( pVehicleList[ iHelicopterVehicleId ].pMercPath->pNext == NULL )
	{
		return( TRUE );
	}

	return( FALSE );
}


// check if helicopter can take off?
BOOLEAN CanHelicopterTakeOff( void )
{
	INT16 sHelicopterSector = 0;

	// if it's already in the air
	if( fHelicopterIsAirBorne == TRUE )
	{
		return( TRUE );
	}

	// grab location
	sHelicopterSector = pVehicleList[ iHelicopterVehicleId ].sSectorX + pVehicleList[ iHelicopterVehicleId ].sSectorY * MAP_WORLD_X;
	// if it's not in enemy control, we can take off
	if( StrategicMap[ sHelicopterSector ].fEnemyControlled == FALSE )
	{
		return( TRUE );
	}

	return( FALSE );
}

void AddHeliPeice( INT16 sGridNo, UINT16 sOStruct )
{
	UINT16 usDummy;

	// ATE: Check first if already exists....
	if ( !TypeExistsInStructLayer( sGridNo, sOStruct, &usDummy ) )
	{
		// place in the world
		AddStructToTail( sGridNo, sOStruct );
	}
}


void AddHelicopterToMaps( BOOLEAN fAdd, UINT8 ubSite )
{
 	INT16 sGridNo = sRefuelStartGridNo[ ubSite ];
	INT16 sOStruct = 0;
	INT16	sGridX, sGridY;
	INT16	sCentreGridX, sCentreGridY;

	// find out what slot it is by which site
	if( ubSite == 0 )
	{
		// drassen
		sOStruct = FIRSTOSTRUCT1;
	}
	else
	{
		// estoni
		sOStruct = FOURTHOSTRUCT1;
	}


	// are we adding or taking away
	if( fAdd )
	{
		AddHeliPeice( sGridNo, sOStruct );
		AddHeliPeice( sGridNo, ( UINT16 )( sOStruct + 1));
		AddHeliPeice( (INT16)( sGridNo - 800 ), ( UINT16 )( sOStruct + 2 ));
		AddHeliPeice( sGridNo, ( UINT16 )(sOStruct + 3 ));
		AddHeliPeice( sGridNo, ( UINT16 )(sOStruct + 4));
		AddHeliPeice( (INT16)( sGridNo - 800 ), ( UINT16 )(sOStruct + 5));

		InvalidateWorldRedundency();
		SetRenderFlags( RENDER_FLAG_FULL );

	// ATE: If any mercs here, bump them off!
		ConvertGridNoToXY( sGridNo, &sCentreGridX, &sCentreGridY );

	for( sGridY = sCentreGridY - 5; sGridY < sCentreGridY + 5; sGridY++ )
	{
		for( sGridX = sCentreGridX - 5; sGridX < sCentreGridX + 5; sGridX++ )
		{
			sGridNo = MAPROWCOLTOPOS( sGridY, sGridX );

		 BumpAnyExistingMerc( sGridNo );
		}
	}
	}
	else
	{
		// remove from the world
		RemoveStruct( sRefuelStartGridNo[ ubSite ], ( UINT16 )(sOStruct ));
		RemoveStruct( sRefuelStartGridNo[ ubSite ], ( UINT16 )(sOStruct + 1 ));
		RemoveStruct( sRefuelStartGridNo[ ubSite ] - 800, ( UINT16 )(sOStruct + 2));
		RemoveStruct( sRefuelStartGridNo[ ubSite ], ( UINT16 )(sOStruct + 3));
		RemoveStruct( sRefuelStartGridNo[ ubSite ], ( UINT16 )(sOStruct + 4));
		RemoveStruct( sRefuelStartGridNo[ ubSite ] - 800, ( UINT16 )(sOStruct +5));

		InvalidateWorldRedundency();
		SetRenderFlags( RENDER_FLAG_FULL );

	}

}


BOOLEAN IsSkyriderIsFlyingInSector( INT16 sSectorX, INT16 sSectorY )
{
	GROUP *pGroup;

	// up and about?
	if ( fHelicopterAvailable && ( iHelicopterVehicleId != -1 ) && CanHelicopterFly() && fHelicopterIsAirBorne )
	{
		pGroup = GetGroup( pVehicleList[ iHelicopterVehicleId ].ubMovementGroup );

		// the right sector?
		if ( ( sSectorX == pGroup->ubSectorX ) && ( sSectorY == pGroup->ubSectorY ) )
		{
			return(TRUE);
		}
	}

	return( FALSE );
}



BOOLEAN IsGroupTheHelicopterGroup( GROUP *pGroup )
{
	if( ( iHelicopterVehicleId != -1 ) && VehicleIdIsValid( iHelicopterVehicleId ) &&
			( pVehicleList[ iHelicopterVehicleId ].ubMovementGroup != 0 ) &&
			( pVehicleList[ iHelicopterVehicleId ].ubMovementGroup == pGroup->ubGroupID ) )
	{
		return( TRUE );
	}

	return( FALSE );
}


INT16 GetNumSafeSectorsInPath( void )
{
	// get the last sector value in the helictoper's path
	PathStPtr pNode = NULL;
	UINT32 uiLocation = 0;
	UINT32	uiCount = 0;
	INT32 iHeliSector = -1;
	GROUP *pGroup;

	// if the heli is on the move, what is the distance it will move..the length of the merc path, less the first node
	if( CanHelicopterFly( ) == FALSE )
	{
		// big number, no go
		return( 0 );
	}


	// may need to skip the sector the chopper is currently in
	iHeliSector = CALCULATE_STRATEGIC_INDEX( pVehicleList[ iHelicopterVehicleId ].sSectorX, pVehicleList[ iHelicopterVehicleId ].sSectorY );

	// get chopper's group ptr
	pGroup = GetGroup( pVehicleList[ iHelicopterVehicleId ].ubMovementGroup );

	pNode = pVehicleList[ iHelicopterVehicleId ].pMercPath;

	// any path yet?
	if( pNode != NULL )
	{
		// first node: skip it if that's the sector the chopper is currently in, AND
		// we're NOT gonna be changing directions (not actually performed until waypoints are rebuilt AFTER plotting is done)
		if ( ( ( INT32 ) pNode->uiSectorId == iHeliSector ) && ( pNode->pNext != NULL ) &&
				!GroupBetweenSectorsAndSectorXYIsInDifferentDirection( pGroup, ( UINT8 ) GET_X_FROM_STRATEGIC_INDEX( pNode->pNext->uiSectorId ), ( UINT8 ) GET_Y_FROM_STRATEGIC_INDEX( pNode->pNext->uiSectorId ) ) )
		{
			pNode = pNode->pNext;
		}

		while( pNode)
		{
			uiLocation = pNode->uiSectorId;

		if ( !StrategicMap[ uiLocation ].fEnemyAirControlled )
		{
		uiCount++;
		}

			pNode = pNode->pNext;
		}
	}


	pNode = MoveToBeginningOfPathList( pTempHelicopterPath );
	// any path yet?
	if( pNode != NULL )
	{
		// first node: skip it if that's the sector the chopper is currently in, AND
		// we're NOT gonna be changing directions (not actually performed until waypoints are rebuilt AFTER plotting is done)
		// OR if the chopper has a mercpath, in which case this a continuation of it that would count the sector twice
		if ( ( ( ( INT32 ) pNode->uiSectorId == iHeliSector ) && ( pNode->pNext != NULL ) &&
 				!GroupBetweenSectorsAndSectorXYIsInDifferentDirection( pGroup, ( UINT8 ) GET_X_FROM_STRATEGIC_INDEX( pNode->pNext->uiSectorId ), ( UINT8 ) GET_Y_FROM_STRATEGIC_INDEX( pNode->pNext->uiSectorId ) ) ) ||
				( GetLengthOfPath( pVehicleList[ iHelicopterVehicleId ].pMercPath ) > 0 ) )
		{
			pNode = pNode->pNext;
		}

		while( pNode)
		{
			uiLocation = pNode->uiSectorId;

		if ( !StrategicMap[ uiLocation ].fEnemyAirControlled )
		{
		uiCount++;
		}

			pNode = pNode->pNext;
		}
	}

	return( (INT16)uiCount );
}


INT16 GetNumUnSafeSectorsInPath( void )
{
	// get the last sector value in the helictoper's path
	PathStPtr pNode = NULL;
	UINT32 uiLocation = 0;
	UINT32	uiCount = 0;
	INT32 iHeliSector = -1;
	GROUP *pGroup;


	// if the heli is on the move, what is the distance it will move..the length of the merc path, less the first node
	if( CanHelicopterFly( ) == FALSE )
	{
		// big number, no go
		return( 0 );
	}


	// may need to skip the sector the chopper is currently in
	iHeliSector = CALCULATE_STRATEGIC_INDEX( pVehicleList[ iHelicopterVehicleId ].sSectorX, pVehicleList[ iHelicopterVehicleId ].sSectorY );

	// get chopper's group ptr
	pGroup = GetGroup( pVehicleList[ iHelicopterVehicleId ].ubMovementGroup );

	pNode = pVehicleList[ iHelicopterVehicleId ].pMercPath;

	// any path yet?
	if( pNode != NULL )
	{
		// first node: skip it if that's the sector the chopper is currently in, AND
		// we're NOT gonna be changing directions (not actually performed until waypoints are rebuilt AFTER plotting is done)
		if ( ( ( INT32 ) pNode->uiSectorId == iHeliSector ) && ( pNode->pNext != NULL ) &&
				!GroupBetweenSectorsAndSectorXYIsInDifferentDirection( pGroup, ( UINT8 ) GET_X_FROM_STRATEGIC_INDEX( pNode->pNext->uiSectorId ), ( UINT8 ) GET_Y_FROM_STRATEGIC_INDEX( pNode->pNext->uiSectorId ) ) )
		{
			pNode = pNode->pNext;
		}

		while( pNode)
		{
			uiLocation = pNode->uiSectorId;

		if ( StrategicMap[ uiLocation ].fEnemyAirControlled )
		{
		uiCount++;
		}

			pNode = pNode->pNext;
		}
	}

	pNode = MoveToBeginningOfPathList( pTempHelicopterPath );
	// any path yet?
	if( pNode != NULL )
	{
		// first node: skip it if that's the sector the chopper is currently in, AND
		// we're NOT gonna be changing directions (not actually performed until waypoints are rebuilt AFTER plotting is done)
		// OR if the chopper has a mercpath, in which case this a continuation of it that would count the sector twice
		if ( ( ( ( INT32 ) pNode->uiSectorId == iHeliSector ) && ( pNode->pNext != NULL ) &&
				!GroupBetweenSectorsAndSectorXYIsInDifferentDirection( pGroup, ( UINT8 ) GET_X_FROM_STRATEGIC_INDEX( pNode->pNext->uiSectorId ), ( UINT8 ) GET_Y_FROM_STRATEGIC_INDEX( pNode->pNext->uiSectorId ) ) ) ||
				( GetLengthOfPath( pVehicleList[ iHelicopterVehicleId ].pMercPath ) > 0 ) )
		{
			pNode = pNode->pNext;
		}

		while( pNode)
		{
			uiLocation = pNode->uiSectorId;

		if ( StrategicMap[ uiLocation ].fEnemyAirControlled )
		{
		uiCount++;
		}

			pNode = pNode->pNext;
		}
	}

	return( (INT16)uiCount );
}



void PaySkyriderBill( void)
{
	// if we owe anything for the trip
	if ( iTotalAccumulatedCostByPlayer > 0 )
	{
		// if player can afford to pay the Skyrider bill
		if( LaptopSaveInfo.iCurrentBalance >= iTotalAccumulatedCostByPlayer )
		{
			// no problem, pay the man
			// add the transaction
			AddTransactionToPlayersBook( PAYMENT_TO_NPC, SKYRIDER, GetWorldTotalMin( ), -iTotalAccumulatedCostByPlayer );
			ScreenMsg( FONT_MCOLOR_DKRED, MSG_INTERFACE, pSkyriderText[ 0 ], iTotalAccumulatedCostByPlayer );
		}
		else
		{
			// money owed
			if( LaptopSaveInfo.iCurrentBalance > 0 )
			{
				ScreenMsg( FONT_MCOLOR_DKRED, MSG_INTERFACE, pSkyriderText[ 0 ], LaptopSaveInfo.iCurrentBalance );
				gMercProfiles[ SKYRIDER ].iBalance = LaptopSaveInfo.iCurrentBalance - iTotalAccumulatedCostByPlayer;
				// add the transaction
				AddTransactionToPlayersBook( PAYMENT_TO_NPC, SKYRIDER, GetWorldTotalMin( ), -LaptopSaveInfo.iCurrentBalance );
			}
			else
			{
				gMercProfiles[ SKYRIDER ].iBalance = - iTotalAccumulatedCostByPlayer;
			}

			HeliCharacterDialogue( pSkyRider, OWED_MONEY_TO_SKYRIDER );
			ScreenMsg( FONT_MCOLOR_DKRED, MSG_INTERFACE, pSkyriderText[ 1 ], -gMercProfiles[ SKYRIDER ].iBalance );

			// kick everyone out! (we know we're in a safe sector if we're paying)
			MoveAllInHelicopterToFootMovementGroup( );

			MakeHeliReturnToBase();
		}

		iTotalAccumulatedCostByPlayer = 0;
	}
}


void PayOffSkyriderDebtIfAny( )
{
	INT32 iAmountOwed;
	INT32 iPayAmount;


	iAmountOwed = - gMercProfiles[ SKYRIDER ].iBalance;

	// if we owe him anything, and have any money
	if ( ( iAmountOwed > 0 ) && ( LaptopSaveInfo.iCurrentBalance > 0 ) )
	{
		iPayAmount = min( iAmountOwed, LaptopSaveInfo.iCurrentBalance );

		// pay the man what we can
		gMercProfiles[ SKYRIDER ].iBalance += iPayAmount;
		// add the transaction
		AddTransactionToPlayersBook( PAYMENT_TO_NPC, SKYRIDER, GetWorldTotalMin( ), -iPayAmount );
		// tell player
		ScreenMsg( FONT_MCOLOR_DKRED, MSG_INTERFACE, pSkyriderText[ 0 ], iPayAmount );

		// now whaddawe owe?
		iAmountOwed = - gMercProfiles[ SKYRIDER ].iBalance;

		// if it wasn't enough
		if ( iAmountOwed > 0 )
		{
			ScreenMsg( FONT_MCOLOR_DKRED, MSG_INTERFACE, pSkyriderText[ 1 ], iAmountOwed );
			HeliCharacterDialogue( pSkyRider, OWED_MONEY_TO_SKYRIDER );
		}
	}
}



void MakeHeliReturnToBase( void )
{
	INT32 iLocation = 0;


	// if already at a refueling point
	if ( CheckForArrivalAtRefuelPoint() )
	{
		ReFuelHelicopter( );
	}
	else
	{
		// choose destination (closest refueling sector)
		iLocation = LocationOfNearestRefuelPoint( TRUE );

		// null out path
		pVehicleList[ iHelicopterVehicleId ].pMercPath = ClearStrategicPathList( pVehicleList[ iHelicopterVehicleId ].pMercPath, pVehicleList[ iHelicopterVehicleId ].ubMovementGroup );

		// plot path to that sector
		pVehicleList[ iHelicopterVehicleId ].pMercPath = AppendStrategicPath( MoveToBeginningOfPathList( BuildAStrategicPath( NULL, GetLastSectorIdInVehiclePath( iHelicopterVehicleId ) , ( INT16 )( CALCULATE_STRATEGIC_INDEX( ubRefuelList[ iLocation ][ 0 ], ubRefuelList[ iLocation ][ 1 ] ) ) , pVehicleList[ iHelicopterVehicleId ].ubMovementGroup, FALSE /*, FALSE */ ) ), pVehicleList[ iHelicopterVehicleId ].pMercPath );
		pVehicleList[ iHelicopterVehicleId ].pMercPath = MoveToBeginningOfPathList( pVehicleList[ iHelicopterVehicleId ].pMercPath );

		// rebuild the movement waypoints
		RebuildWayPointsForGroupPath( pVehicleList[ iHelicopterVehicleId ].pMercPath, pVehicleList[ iHelicopterVehicleId ].ubMovementGroup );

		fHeliReturnStraightToBase = TRUE;
		fHoveringHelicopter = FALSE;
	}

	// stop time compression if it's on so player can digest this
	StopTimeCompression( );
}



BOOLEAN SoldierAboardAirborneHeli( SOLDIERTYPE *pSoldier )
{
	Assert( pSoldier );

	// if not in a vehicle, or not aboard the helicopter
	if ( ( pSoldier->bAssignment != VEHICLE ) || ( pSoldier->iVehicleId != iHelicopterVehicleId ) )
	{
		return( FALSE );
	}

	// he's in the heli - is it airborne?
	if ( !fHelicopterIsAirBorne )
	{
		// nope, it's currently on the ground
		return( FALSE );
	}

	// yes, airborne
	return( TRUE );
}