; -RA- DWX v1.41 User Doctrine

var PreEnableCourse
var PreEnableSpeed
var PreEnableDepth
var RunToEnable
var CircleSearchPattern
var Enabled
var Homing
var SearchDepth
var Floor
var Ceiling
var AcousticMode
var spdmin
var InitTime
var InitX
var InitY
var Run
var Enabled1
var Trange
var WakeMode
var snakeleft
var snakecrs
var PassSearchSpd
var CorrInterogg
var fuel
var FSR
var K
var FSRMIN
var DMAX
var DMIN
var TorpMaxDepth
var ImpactTime
var CrushDpth
var Explode
VAR FIRST
VAR SrcSpd
var fenab
VAR OPRDEPTH
VAR LA
VAR FD
VAR TFD
VAR CalcSpd
VAR mspd
VAR DELAY
VAR OrdDpth
var GotHim
var ColT
VAR DELTA1
VAR OLDBRG
var trng
var tbrg
var tage
var talt
var TSILOS
VAR FTERM
VAR NumbNG
var UM
VAR Tconf
var TReatak
var FDROPA
VAR FREATAK
VAR UREATAK
var OLDPreCourse
var FKORIDOR
var fwake
var curs_r
Var TR1
var FS
var DFS
VAR DU
VAR TU 
var RV
var DK
VAR NUK
VAR KK
var DKR
var SilStart
var mission

func SearchON {
IF AcousticMode THEN {
ENABLE
SensorEnable "268" 0
SensorEnable "553" 0
SensorEnable "555" 0
SensorEnable "844" 0
} ELSE {
IF WakeMode THEN {
PASSIVEENABLE
SensorEnable "268" 0
SensorEnable "553" 0
SensorEnable "555" 0
} ELSE {
PASSIVEENABLE
SensorEnable "268" 0
SensorEnable "844" 0
} ENDIF
} ENDIF
}

IF INIT THEN {
TU = -1
FIRST = 1
DFS = 875
DU = 3
fenab = 1
FD = 1
TFD = -1
snakeleft = 0
IF 5 >= ( RND 10 ) THEN { snakeleft = 1 } ENDIF
CorrInterogg = Time
InitTime = ( Time + 3 )
Enabled = 0
Enabled1 = 0
Homing = 0
InitX = OwnX
InitY = OwnY
IF ( DBUser1Flags & 2 ) == 2 THEN { SetSnorkel On SilStart = 1 } ENDIF
TorpMaxDepth = ( MinAlt * 3.28 )
Explode = RND 10
spdmin = 26
Trange = 25000
PreEnableDepth = Ownalt
if ownalt > -15 then { PreEnableDepth = -23 } endif
PassSearchSpd = spdmin
UM = 200
FREATAK = 1
Tconf = 0
Treatak = -1
FDROPA = 1
IF ( OwnAlt <= TorpMaxDepth ) THEN {
	CrushDpth = 1
	ImpactTime = ( Time + 10 )
} ENDIF
} ELSE {
IF FIRST THEN {
FIRST = 0
FUEL = 1000
DMIN = ( Trange / 1852 )
DMAX = ( 15000 / 1852 )
FSRMIN = ( FUEL / ( DMIN / ( spdmin / 3600 ) ) )
K = ( ( ( FUEL / ( DMAX / ( MAXSPD / 3600 ) ) ) - FSRMIN ) / ( MAXSPD - spdmin ) )
DK = 0.6
DK = ( 0.1 / ( DK * 3.1415926 ) )
DKR = 0.25
DKR = ( 0.1 / ( DKR * 3.1415926 ) )

WakeMode = 0
IF RunToEnable < 100 THEN { RunToEnable = 100 } ENDIF
SrcSpd = PreEnableSpeed
IF not AcousticMode THEN { 
IF SearchDepth > -34 THEN { WakeMode = 1
} ELSEIF PreEnableSpeed > PassSearchSpd THEN { SrcSpd = PassSearchSpd } ENDIF
IF PreEnableSpeed < spdmin THEN { PreEnableSpeed = spdmin } ENDIF
If ( SrcSpd < spdmin ) Then { SrcSpd = spdmin } Endif
} ENDIF
} ENDIF
IF FUEL < 0 THEN {
SHUTDOWN
} ELSE {
	CorrInterogg = ( Time - CorrInterogg )
	IF ( OWNALT < 0 ) AND ( ( OWNSPD >= ( spdmin - 1 ) ) OR ( OWNSPD <= ( MAXSPD + 1 ) ) ) THEN {
		FSR = ( FSRMIN + ( ( OWNSPD - spdmin ) * K ) )
		FSR = ( FSR * CorrInterogg )
		FUEL = ( FUEL - FSR )	
	} ENDIF	
IF SilStart THEN {
	IF ( OwnSpd <= PreEnableSpeed ) AND ( mission != 1 ) THEN {
		SetPriority 255
		SetSnorkel OFF
		mission = 1
	} ENDIF
} ENDIF
IF NEWTRACK THEN {
if ( ( ownalt >= Layer ) and ( tgtalt < Layer ) ) or ( ( ownalt < Layer ) and ( tgtalt >= Layer ) ) then { ColT = 1 } else { ColT = 0 } endif
if ColT and ( ( AcousticMode and ( tgtrng > dfs ) ) or ( ( tgtconf < 50 ) and not ( AcousticMode or WakeMode ) ) ) then {
	SETTACTIC "SBROS_T"
} else {
	IF WakeMode THEN {
		if not ( TargetName $= "Towed Decoy" ) then {
			Homing = 0
			SetTactic "Terminal_Home_Wake"
			Treatak = -1
			FDROPA = 0
			} endif
	} ELSE {
IF ( TGTALT >= Floor ) AND ( TGTALT < ( Ceiling + 10 ) ) THEN {
	if tconf < tgtconf then { 
		TRNG = TGTRNG
		TALT = TGTALT
		TBRG = TGTBRG
		TSILOS = TGTSILOS
		GotHim = 0
		Treatak = -1
		FDROPA = 1
	} endif
IF ( ( TgtClass $= "Weap" ) AND NOT ( TargetName $= "Towed Decoy" ) ) OR ( TgtType $= "Bio" ) THEN { SETTACTIC "TorpHomCMN"
} else { SETTACTIC "TorpHom" } ENDIF
} ELSE {
SETTACTIC "SBROS_T"
} ENDIF
} ENDIF
} ENDIF
} ENDIF
IF LOSTTRACK THEN {
IF not WakeMode THEN {
	IF FREATAK THEN {
	IF FDROPA and ( TRng < ( 1000 + rnd 500 ) ) THEN {
		TReatak = Time
		NUK = 1
		TR1 = ( Time + 30 )
		curs_r = owncrs
		IF ( ( TIME MOD 2 ) - ( TIME MOD 1 ) ) THEN {
			UREATAK = -5
		} ELSE { 
			UREATAK = 5
		} ENDIF
	} ENDIF
	} ENDIF
	FDROPA = 1
} ENDIF
} ENDIF
	Run += xyrng ( OwnX - InitX ) ( OwnY - InitY )
		InitX = OwnX
		InitY = OwnY
IF ( ( TFD != -1 ) AND ( TFD < TIME ) ) THEN { TFD = -1 Enabled1 = 0 } ENDIF

IF NOT Enabled THEN {
	NUK = 1
	fenab = 1
	TReatak = -1
	IF ( RunToEnable != -1 ) AND ( Run >= RunToEnable ) THEN {
		SearchON
		Enabled = 1
		RunToEnable = -1
	} ELSEIF ( Time > InitTime ) AND ( OwnAlt <= 0 ) THEN {
		Homing = 0
		SETPRIORITY 252	SetCrs PreEnableCourse
		SETPRIORITY 252 SetSpd PreEnableSpeed
		SETPRIORITY 252	SetAlt PreEnableDepth
	} ENDIF
} else {
	if fenab then {
		fenab = 0
		Enabled1 += 1
		TFD = ( TIME + 4 )
	} endif
	IF not HOMING THEN {
		Tconf = 0
		IF ( Time > InitTime ) AND ( OwnAlt <= 0 ) THEN {
			IF PreEnableCourse != OLDPreCourse THEN { TReatak = -1 TU = ( TIME + 12 ) } ENDIF
			if TReatak != -1 then {
				IF ( TR1 < Time ) and ( 5 > abs RelativeBearing curs_r owncrs ) THEN {
					TReatak = -1
				} ELSE {
					RV = ( DKR * OWNSPD )
					IF NUK THEN { NUK = 0 KK = OWNCRS } ENDIF
					IF UREATAK == -5 THEN { KK = ( KK + RV ) MOD 360 } ELSE { KK = ( KK - RV ) MOD 360 } ENDIF
					SETPRIORITY 252 SETCRS KK
				} endif
			} else {
				IF TU != -1 THEN {
					SETPRIORITY 252 SetCrs PreEnableCourse
				} ELSEIF CircleSearchPattern THEN {
					IF NUK THEN { NUK = 0 KK = OWNCRS } ENDIF
					RV = ( DK * OWNSPD )
					IF snakeleft THEN { KK = ( KK + RV ) MOD 360 } ELSE { KK = ( KK - RV ) MOD 360 } ENDIF
					SETPRIORITY 252 SETCRS KK
				} ELSEIF WakeMode THEN {
					if fwake < time then { fwake = ( time + 1 ) SETPRIORITY 245 SetCrs PreEnableCourse SETPRIORITY 252 WakeFollow } endif
				} ELSE {
					snakecrs = RelativeBearing PreenableCourse OwnCrs
					IF snakecrs > 30 THEN {
						snakeleft = 1
						DU = 3
					} ELSEIF snakecrs < -30 THEN {
						snakeleft = 0
						DU = 3
					} ENDIF
					IF snakeleft THEN { SETPRIORITY 252 SETCRS ( OwnCrs - DU ) } ELSE { SETPRIORITY 252 SETCRS ( OwnCrs + DU ) } ENDIF
					DU += 1
				} ENDIF
			} endif
		} endif
	IF FD THEN { FD = 0 OPRDEPTH = SearchDepth } ENDIF
	SETPRIORITY 252 SetSpd SrcSpd
	IF Enabled1 >= 2 THEN {
		Enabled1 = 0
		IF FLOOR < TerrainAlt THEN { COLT = ( TerrainAlt + 30 ) } ELSE { COLT = FLOOR } ENDIF
		IF LAYER == 0 THEN { LA = ( ( COLT - CEILING ) / 2 ) } ELSE { LA = LAYER } ENDIF
		IF ( -200 > TerrainAlt ) AND ( CEILING > LA ) THEN {
			IF OPRDEPTH < LA THEN {
				if SearchDepth > LA THEN {
					CalcSpd = SearchDepth
				} ELSE {
					CalcSpd = ( LA - CEILING )
					CalcSpd = ( CalcSpd * 0.5 )
					CalcSpd = ( LA - CalcSpd )
				} ENDIF
			} ELSE {
				if SearchDepth < LA THEN {
					CalcSpd = SearchDepth
				} ELSE {
					CalcSpd = ( COLT - LA )
					CalcSpd = ( CalcSpd * 0.5 )
					CalcSpd = ( LA + CalcSpd )
				} ENDIF
			} ENDIF
		} ENDIF
		OPRDEPTH = CalcSpd
	} ENDIF
	SETPRIORITY 252	SetAlt OPRDEPTH
} ENDIF
} endif
IF Time < InitTime THEN {
	SETPRIORITY 252	SetSpd PreEnableSpeed
	SETPRIORITY 252	SetAlt PreEnableDepth } ENDIF
IF ( CrushDpth == 1 ) AND ( Time >= ImpactTime ) THEN {
IF Explode >= 5 THEN { Detonate } ELSE { Shutdown } ENDIF
} ENDIF
if Homing then {
fs = 0
if ( ( ownalt >= Layer ) and ( talt < Layer ) ) or ( ( ownalt < Layer ) and ( talt >= Layer ) ) then { ColT = 1
} else { ColT = 0 } endif
if ColT and ( ( AcousticMode and ( trng > dfs ) ) or ( ( tconf < 50 ) and not ( AcousticMode or WakeMode ) ) ) then {
fs = 1
} else {
IF not GotHim THEN {
	FTERM = 0
	GotHim = 1
	mspd = ( spdmin + 10 )
	IF DBBuoyFlags & 3 THEN { mspd = MaxSpd } ENDIF
	OLDBRG = TBRG
	IF AcousticMode THEN {
		mspd = MAXSPD
		DELAY = 7
	} ELSE {
		DELAY = 3
	} ENDIF
TAGE = 0
} ENDIF
NUK = 1
if ( ( talt - 11 ) > Ceiling ) or ( talt < floor ) then { FKORIDOR = 1 } else { FKORIDOR = 0 } endif
CalcSpd = ownspd
IF TAGE < DELAY THEN {
		CalcSpd = ( CalcSpd + 3 )
		IF CalcSpd > mspd THEN { CalcSpd = mspd } ENDIF
} ELSE {
	IF OWNSPD > spdmin THEN {
	CalcSpd = ( CalcSpd - 3 )
	IF CalcSpd < spdmin THEN { CalcSpd = spdmin } ENDIF
} endif
} ENDIF
IF TRNG >= 180 THEN {
OrdDpth = TALT
DELTA1 = ( OrdDpth - ownalt )
ColT = ( ( ownspd * 1852 ) / 3600 )
if ColT != 0 then { 
ColT = ( TRNG / ColT ) } else { ColT = 0.001 } endif
if ( TRNG > 1300 ) OR ( ABS TSILOS < 11 ) then { SETPRIORITY 252 SETCRS TBRG
fterm = 0
} elseif ( TRNG > 500 ) OR ( ABS TSILOS < 30 ) then {
fterm = 0
IF ColT > 20 THEN { ColT = 20 } ENDIF
ColT += 3
OLDBRG = ( ( ColT * TBRG ) - ( ( ColT - 1 ) * OLDBRG ) )
OLDBRG = ( OLDBRG + 720 )
OLDBRG = ( OLDBRG MOD 360 )
SETPRIORITY 252 SETCRS OLDBRG
} else { fterm = 1 } endif
ColT = XYBRG ABS DELTA1 ( TRNG * 3.28 )
if DELTA1 < 0 then { ColT = ( -1 * ColT ) } endif
SETPRIORITY 252 setpitch ColT
} ENDIF
SETPRIORITY 252
SETSPD CalcSpd
OLDBRG = TBRG
} endif
} ENDIF
} ENDIF
} ENDIF
IF TU != -1 THEN {
	IF TU < TIME THEN { TU = -1 } ENDIF
} ENDIF
if ownalt > -8 then { SETPRIORITY 255 setalt -8 } endif
OLDPreCourse = PreEnableCourse
Homing = 0
CorrInterogg = Time
