boss_gal_darah::boss_gal_darahAI Struct Reference

Inheritance diagram for boss_gal_darah::boss_gal_darahAI:

Public Member Functions
	boss_gal_darahAI (Creature *creature)
void	Reset () override
void	InitializeAI () override
void	JustReachedHome () override
void	ScheduleEvents (bool troll)
void	JustEngagedWith (Unit *who) override
	Called for reaction when initially engaged. More...
void	JustSummoned (Creature *summon) override
uint32	GetData (uint32) const override
void	JustDied (Unit *killer) override
void	KilledUnit (Unit *) override
void	UpdateAI (uint32 diff) override
	Use to start attacking a target. Called just before JustEngagedWith() More...
Public Member Functions inherited from BossAI
	BossAI (Creature *creature, uint32 bossId)
	~BossAI () override
bool	CanRespawn () override
void	DamageTaken (Unit *attacker, uint32 &damage, DamageEffectType damagetype, SpellSchoolMask damageSchoolMask) override
	Called at any Damage from any attacker (before damage apply) More...
void	JustSummoned (Creature *summon) override
void	SummonedCreatureDespawn (Creature *summon) override
void	SummonedCreatureDespawnAll () override
void	UpdateAI (uint32 diff) override
	Use to start attacking a target. Called just before JustEngagedWith() More...
void	ScheduleHealthCheckEvent (uint32 healthPct, std::function< void()> exec)
	Executes a function once the creature reaches the defined health point percent. More...
void	ScheduleHealthCheckEvent (std::initializer_list< uint8 > healthPct, std::function< void()> exec)
virtual void	ExecuteEvent (uint32)
virtual void	ScheduleTasks ()
void	Reset () override
void	JustEngagedWith (Unit *) override
	Called for reaction when initially engaged. More...
void	EnterEvadeMode (EvadeReason why=EVADE_REASON_OTHER) override
void	JustDied (Unit *) override
void	JustReachedHome () override
Public Member Functions inherited from ScriptedAI
	ScriptedAI (Creature *creature)
	~ScriptedAI () override
void	AttackStartNoMove (Unit *target)
void	DamageTaken (Unit *, uint32 &, DamageEffectType, SpellSchoolMask) override
	Called at any Damage from any attacker (before damage apply) More...
void	UpdateAI (uint32 diff) override
	Use to start attacking a target. Called just before JustEngagedWith() More...
void	JustDied (Unit *) override
void	KilledUnit (Unit *) override
void	JustSummoned (Creature *) override
void	SummonedCreatureDespawn (Creature *) override
void	SpellHit (Unit *, SpellInfo const *) override
void	SpellHitTarget (Unit *, SpellInfo const *) override
void	MovementInform (uint32, uint32) override
void	OnPossess (bool)
bool	IsInRoom (const Position *pos, Axis axis, bool above)
void	Reset () override
void	JustEngagedWith (Unit *) override
	Called for reaction when initially engaged. More...
void	AttackStart (Unit *) override
void	DoStartMovement (Unit *target, float distance=0.0f, float angle=0.0f)
void	DoStartNoMovement (Unit *target)
void	DoStopAttack ()
void	DoCastSpell (Unit *target, SpellInfo const *spellInfo, bool triggered=false)
void	DoPlaySoundToSet (WorldObject *source, uint32 soundId)
void	DoPlayMusic (uint32 soundId, bool zone)
void	DoAddThreat (Unit *unit, float amount)
void	DoModifyThreatByPercent (Unit *unit, int32 pct)
void	DoResetThreat (Unit *unit)
void	DoResetThreatList ()
float	DoGetThreat (Unit *unit)
void	DoTeleportPlayer (Unit *unit, float x, float y, float z, float o)
void	DoTeleportPlayer (Unit *unit, Position pos)
void	DoTeleportAll (float x, float y, float z, float o)
Unit *	DoSelectLowestHpFriendly (float range, uint32 minHPDiff=1)
std::list< Creature * >	DoFindFriendlyCC (float range)
std::list< Creature * >	DoFindFriendlyMissingBuff (float range, uint32 spellId)
Player *	GetPlayerAtMinimumRange (float minRange)
Creature *	DoSpawnCreature (uint32 entry, float offsetX, float offsetY, float offsetZ, float angle, uint32 type, uint32 despawntime)
bool	IsUniqueTimedEventDone (uint32 id) const
void	SetUniqueTimedEventDone (uint32 id)
void	ResetUniqueTimedEvent (uint32 id)
void	ClearUniqueTimedEventsDone ()
void	ScheduleTimedEvent (Milliseconds timerMin, Milliseconds timerMax, std::function< void()> exec, Milliseconds repeatMin, Milliseconds repeatMax=0s, uint32 uniqueId=0)
void	ScheduleTimedEvent (Milliseconds timerMax, std::function< void()> exec, Milliseconds repeatMin, Milliseconds repeatMax=0s, uint32 uniqueId=0)
void	ScheduleUniqueTimedEvent (Milliseconds timer, std::function< void()> exec, uint32 uniqueId)
bool	HealthBelowPct (uint32 pct) const
bool	HealthAbovePct (uint32 pct) const
SpellInfo const *	SelectSpell (Unit *target, uint32 school, uint32 mechanic, SelectTargetType targets, uint32 powerCostMin, uint32 powerCostMax, float rangeMin, float rangeMax, SelectEffect effect)
void	SetEquipmentSlots (bool loadDefault, int32 mainHand=EQUIP_NO_CHANGE, int32 offHand=EQUIP_NO_CHANGE, int32 ranged=EQUIP_NO_CHANGE)
virtual bool	CheckEvadeIfOutOfCombatArea () const
bool	IsHeroic () const
Difficulty	GetDifficulty () const
bool	Is25ManRaid () const
template<class T >
const T &	DUNGEON_MODE (const T &normal5, const T &heroic10) const
template<class T >
const T &	RAID_MODE (const T &normal10, const T &normal25) const
template<class T >
const T &	RAID_MODE (const T &normal10, const T &normal25, const T &heroic10, const T &heroic25) const
Player *	SelectTargetFromPlayerList (float maxdist, uint32 excludeAura=0, bool mustBeInLOS=false) const
void	SetInvincibility (bool apply)
bool	IsInvincible () const
void	SetAutoAttackAllowed (bool allow)
bool	IsAutoAttackAllowed () const
Public Member Functions inherited from CreatureAI
void	Talk (uint8 id, WorldObject const *whisperTarget=nullptr, Milliseconds delay=0s)
	Causes the creature to talk/say the text assigned to their entry in the creature_text database table. More...
void	Talk (uint8 id, Milliseconds delay)
WorldObject *	GetSummoner () const
	Returns the summoner creature/object, if the creature is a temporary summon. More...
	CreatureAI (Creature *creature)
	~CreatureAI () override
void	MoveCircleChecks ()
void	MoveBackwardsChecks ()
void	MoveInLineOfSight_Safe (Unit *who)
	== Reactions At ================================= More...
void	TriggerAlert (Unit const *who) const
virtual bool	CanRespawn ()
virtual void	EnterEvadeMode (EvadeReason why=EVADE_REASON_OTHER)
virtual void	JustEngagedWith (Unit *)
	Called for reaction when initially engaged. More...
virtual void	JustDied (Unit *)
virtual void	KilledUnit (Unit *)
virtual void	JustSummoned (Creature *)
virtual void	IsSummonedBy (WorldObject *)
virtual void	SummonedCreatureDespawn (Creature *)
virtual void	SummonedCreatureDies (Creature *, Unit *)
virtual void	SummonedCreatureDespawnAll ()
virtual void	SummonedCreatureEvade (Creature *)
virtual void	SpellHit (Unit *, SpellInfo const *)
virtual void	SpellHitTarget (Unit *, SpellInfo const *)
virtual void	AttackedBy (Unit *)
virtual bool	IsEscorted ()
virtual void	JustRespawned ()
virtual void	MovementInform (uint32, uint32)
virtual void	PathEndReached (uint32)
void	OnCharmed (bool apply) override
	Called when unit is charmed. More...
virtual void	JustReachedHome ()
void	DoZoneInCombat (Creature *creature=nullptr, float maxRangeToNearestTarget=250.0f)
virtual void	ReceiveEmote (Player *, uint32)
virtual void	OwnerAttackedBy (Unit *)
virtual void	OwnerAttacked (Unit *)
virtual void	CorpseRemoved (uint32 &)
	== Triggered Actions Requested ================== More...
virtual void	PassengerBoarded (Unit *, int8, bool)
	== Fields ======================================= More...
virtual bool	BeforeSpellClick (Unit *)
virtual void	OnSpellClick (Unit *, bool &)
virtual bool	CanSeeAlways (WorldObject const *)
virtual bool	CanBeSeen (Player const *)
virtual bool	CanAlwaysBeDetectable (WorldObject const *)
virtual void	PetStopAttack ()
virtual bool	CheckInRoom ()
CreatureBoundary const *	GetBoundary () const
void	SetBoundary (CreatureBoundary const *boundary, bool negativeBoundaries=false)
bool	IsInBoundary (Position const *who=nullptr) const
virtual void	CalculateThreat (Unit *, float &, SpellInfo const *)
virtual bool	OnTeleportUnreacheablePlayer (Player *)
virtual void	OnAuraRemove (AuraApplication *, AuraRemoveMode)
Public Member Functions inherited from UnitAI
	UnitAI (Unit *unit)
virtual	~UnitAI ()
virtual bool	CanAIAttack (Unit const *) const
virtual void	AttackStart (Unit *)
virtual void	UpdateAI (uint32)=0
	Use to start attacking a target. Called just before JustEngagedWith() More...
virtual void	InitializeAI ()
virtual void	Reset ()
virtual void	OnCharmed (bool apply)=0
	Called when unit is charmed. More...
virtual void	DoAction (int32)
virtual uint32	GetData (uint32) const
virtual void	SetData (uint32, uint32)
virtual void	SetGUID (ObjectGuid, int32=0)
virtual ObjectGuid	GetGUID (int32=0) const
Unit *	SelectTarget (SelectTargetMethod targetType, uint32 position=0, float dist=0.0f, bool playerOnly=false, bool withTank=true, int32 aura=0)
template<class PREDICATE >
Unit *	SelectTarget (SelectTargetMethod targetType, uint32 position, PREDICATE const &predicate)
void	SelectTargetList (std::list< Unit * > &targetList, uint32 num, SelectTargetMethod targetType, uint32 position=0, float dist=0.0f, bool playerOnly=false, bool withTank=true, int32 aura=0)
	Select the best (up to) <num> targets (in <targetType> order) from the threat list that fulfill the following: More...
template<class PREDICATE >
void	SelectTargetList (std::list< Unit * > &targetList, uint32 num, SelectTargetMethod targetType, uint32 position, PREDICATE const &predicate)
virtual void	JustEnteredCombat (Unit *)
	Called when the unit enters combat. More...
virtual void	JustExitedCombat ()
	Called when the unit leaves combat. More...
virtual void	DamageDealt (Unit *, uint32 &, DamageEffectType)
	Called at any Damage to any victim (before damage apply) More...
virtual void	DamageTaken (Unit *, uint32 &, DamageEffectType, SpellSchoolMask)
	Called at any Damage from any attacker (before damage apply) More...
virtual void	HealReceived (Unit *, uint32 &)
	Called when the creature receives heal. More...
virtual void	OnPowerUpdate (Powers, int32, int32, uint32)
	Called when the creature power updates. More...
virtual void	HealDone (Unit *, uint32 &)
	Called when the unit heals. More...
virtual void	OnCalculateMeleeDamageReceived (uint32 &, Unit *)
	Called during damage calculations. More...
virtual void	OnCalculateSpellDamageReceived (int32 &, Unit *)
virtual void	OnCalculatePeriodicTickReceived (uint32 &, Unit *)
	Called during calculation when receiving periodic healing or damage (DoT or HoT) More...
void	AttackStartCaster (Unit *victim, float dist)
SpellCastResult	DoAddAuraToAllHostilePlayers (uint32 spellid)
SpellCastResult	DoCast (uint32 spellId)
SpellCastResult	DoCast (Unit *victim, uint32 spellId, bool triggered=false)
SpellCastResult	DoCastSelf (uint32 spellId, bool triggered=false)
SpellCastResult	DoCastToAllHostilePlayers (uint32 spellid, bool triggered=false)
	To specify the caster as target if the spell is self-cast. More...
SpellCastResult	DoCastVictim (uint32 spellId, bool triggered=false)
SpellCastResult	DoCastAOE (uint32 spellId, bool triggered=false)
SpellCastResult	DoCastRandomTarget (uint32 spellId, uint32 threatTablePosition=0, float dist=0.0f, bool playerOnly=true, bool triggered=false, bool withTank=true)
	Cast the spell on a random unit from the threat list. More...
SpellCastResult	DoCastMaxThreat (uint32 spellId, uint32 threatTablePosition=0, float dist=0.0f, bool playerOnly=true, bool triggered=false)
	Cast spell on the top threat target, which may not be the current victim. More...
float	DoGetSpellMaxRange (uint32 spellId, bool positive=false)
void	DoMeleeAttackIfReady ()
bool	DoSpellAttackIfReady (uint32 spell)
void	DoSpellAttackToRandomTargetIfReady (uint32 spell, uint32 threatTablePosition=0, float dist=0.f, bool playerOnly=true)
virtual void	SummonMovementInform (Creature *, uint32, uint32)
	Called when a summon reaches a waypoint or point movement finished. More...
virtual void	sGossipHello (Player *)
virtual void	sGossipSelect (Player *, uint32, uint32)
virtual void	sGossipSelectCode (Player *, uint32, uint32, char const *)
virtual void	sQuestAccept (Player *, Quest const *)
virtual void	sQuestSelect (Player *, Quest const *)
virtual void	sQuestComplete (Player *, Quest const *)
virtual void	sQuestReward (Player *, Quest const *, uint32)
virtual void	sOnGameEvent (bool, uint16)
virtual std::string	GetDebugInfo () const

Public Attributes
uint8	phaseCounter
GuidSet	impaledList
Public Attributes inherited from BossAI
float	callForHelpRange
InstanceScript *const	instance
Public Attributes inherited from ScriptedAI
Creature *	me

Additional Inherited Members
Public Types inherited from ScriptedAI
enum class	Axis {   AXIS_X ,   AXIS_Y }
Public Types inherited from CreatureAI
enum	EvadeReason {   EVADE_REASON_NO_HOSTILES ,   EVADE_REASON_BOUNDARY ,   EVADE_REASON_SEQUENCE_BREAK ,   EVADE_REASON_NO_PATH ,   EVADE_REASON_OTHER }
Static Public Member Functions inherited from CreatureAI
static bool	IsInBounds (CreatureBoundary const &boundary, Position const *who)
Static Public Member Functions inherited from UnitAI
static void	FillAISpellInfo ()
Static Public Attributes inherited from UnitAI
static AISpellInfoType *	AISpellInfo
Protected Member Functions inherited from BossAI
void	_Reset ()
void	_JustEngagedWith ()
void	_JustDied ()
void	_JustReachedHome ()
void	_EnterEvadeMode (EvadeReason why=EVADE_REASON_OTHER)
void	TeleportCheaters ()
Protected Member Functions inherited from CreatureAI
bool	UpdateVictim ()
bool	UpdateVictimWithGaze ()
void	SetGazeOn (Unit *target)
Creature *	DoSummon (uint32 entry, Position const &pos, uint32 despawnTime=30000, TempSummonType summonType=TEMPSUMMON_CORPSE_TIMED_DESPAWN)
Creature *	DoSummon (uint32 entry, WorldObject *obj, float radius=5.0f, uint32 despawnTime=30000, TempSummonType summonType=TEMPSUMMON_CORPSE_TIMED_DESPAWN)
Creature *	DoSummonFlyer (uint32 entry, WorldObject *obj, float flightZ, float radius=5.0f, uint32 despawnTime=30000, TempSummonType summonType=TEMPSUMMON_CORPSE_TIMED_DESPAWN)
virtual void	MoveInLineOfSight (Unit *)
bool	_EnterEvadeMode (EvadeReason why=EVADE_REASON_OTHER)
Protected Attributes inherited from BossAI
SummonList	summons
Protected Attributes inherited from CreatureAI
Creature *const	me
EventMap	events
TaskScheduler	scheduler
CreatureBoundary const *	_boundary
bool	_negateBoundary
Protected Attributes inherited from UnitAI
Unit *const	me

Detailed Description

Constructor & Destructor Documentation

boss_gal_darahAI()

boss_gal_darah::boss_gal_darahAI::boss_gal_darahAI ( Creature *  creature )

inline

                                             : BossAI(creature, DATA_GAL_DARAH)
        {
        }

Member Function Documentation

GetData()

uint32 boss_gal_darah::boss_gal_darahAI::GetData ( uint32  ) const

inlineoverridevirtual

Reimplemented from UnitAI.

        {
            return impaledList.size();
        }

References impaledList.

InitializeAI()

void boss_gal_darah::boss_gal_darahAI::InitializeAI ( )

inlineoverridevirtual

Reimplemented from UnitAI.

        {
            BossAI::InitializeAI();
            me->CastSpell(me, SPELL_START_VISUAL, false);
        }

References Unit::CastSpell(), UnitAI::InitializeAI(), ScriptedAI::me, and SPELL_START_VISUAL.

JustDied()

void boss_gal_darah::boss_gal_darahAI::JustDied ( Unit *  killer )

inlineoverridevirtual

Reimplemented from BossAI.

        {
            Talk(SAY_DEATH);
            BossAI::JustDied(killer);
        }

References BossAI::JustDied(), and SAY_DEATH.

JustEngagedWith()

void boss_gal_darah::boss_gal_darahAI::JustEngagedWith ( Unit *  )

inlineoverridevirtual

Called for reaction when initially engaged.

Reimplemented from BossAI.

        {
            Talk(SAY_AGGRO);
            BossAI::JustEngagedWith(who);
 
            ScheduleEvents(true);
            me->RemoveAurasDueToSpell(SPELL_START_VISUAL);
            me->InterruptNonMeleeSpells(true);
        }

References Unit::InterruptNonMeleeSpells(), BossAI::JustEngagedWith(), ScriptedAI::me, Unit::RemoveAurasDueToSpell(), SAY_AGGRO, ScheduleEvents(), and SPELL_START_VISUAL.

JustReachedHome()

void boss_gal_darah::boss_gal_darahAI::JustReachedHome ( )

inlineoverridevirtual

Reimplemented from BossAI.

        {
            BossAI::JustReachedHome();
            me->CastSpell(me, SPELL_START_VISUAL, false);
        }

References Unit::CastSpell(), BossAI::JustReachedHome(), ScriptedAI::me, and SPELL_START_VISUAL.

JustSummoned()

void boss_gal_darah::boss_gal_darahAI::JustSummoned ( Creature *  summon )

inlineoverridevirtual

Reimplemented from BossAI.

        {
            uint32 despawnTime = 0;
            if (Unit* target = SelectTarget(SelectTargetMethod::Random, 0, 60.0f, true))
            {
                summon->CastSpell(target, SPELL_STAMPEDE_DMG, true);
                despawnTime = (summon->GetDistance(target) / 40.0f * 1000) + 500;
            }
 
            summon->DespawnOrUnsummon(despawnTime);
        }

References Unit::CastSpell(), Creature::DespawnOrUnsummon(), WorldObject::GetDistance(), UnitAI::SelectTarget(), and SPELL_STAMPEDE_DMG.

KilledUnit()

void boss_gal_darah::boss_gal_darahAI::KilledUnit ( Unit *  )

inlineoverridevirtual

Reimplemented from ScriptedAI.

        {
            if (events.GetNextEventTime(EVENT_KILL_TALK) == 0)
            {
                Talk(SAY_SLAY);
                events.ScheduleEvent(EVENT_KILL_TALK, 6s);
            }
        }

References EVENT_KILL_TALK, and SAY_SLAY.

Reset()

void boss_gal_darah::boss_gal_darahAI::Reset ( )

inlineoverridevirtual

Reimplemented from BossAI.

        {
            BossAI::Reset();
            impaledList.clear();
            phaseCounter = 0;
        }

References impaledList, phaseCounter, and BossAI::Reset().

ScheduleEvents()

void boss_gal_darah::boss_gal_darahAI::ScheduleEvents ( bool  troll )

inline

        {
            events.Reset();
            if (troll)
            {
                events.RescheduleEvent(EVENT_STAMPEDE, 10s);
                events.RescheduleEvent(EVENT_WHIRLING_SLASH, 21s);
            }
            else
            {
                events.RescheduleEvent(EVENT_PUNCTURE, 10s);
                events.RescheduleEvent(EVENT_ENRAGE, 15s);
                events.RescheduleEvent(EVENT_IMPALING_CHARGE, 21s);
                events.RescheduleEvent(EVENT_STOMP, 5s);
            }
        }

References EVENT_ENRAGE, EVENT_IMPALING_CHARGE, EVENT_PUNCTURE, EVENT_STAMPEDE, EVENT_STOMP, and EVENT_WHIRLING_SLASH.

Referenced by JustEngagedWith(), and UpdateAI().

UpdateAI()

void boss_gal_darah::boss_gal_darahAI::UpdateAI ( uint32  )

inlineoverridevirtual

Use to start attacking a target. Called just before JustEngagedWith()

Reimplemented from BossAI.

        {
            if (!UpdateVictim())
                return;
 
            events.Update(diff);
            if (me->HasUnitState(UNIT_STATE_CASTING | UNIT_STATE_CHARGING))
                return;
 
            switch (events.ExecuteEvent())
            {
                case EVENT_STAMPEDE:
                    Talk(SAY_SUMMON_RHINO);
                    me->CastSpell(me->GetVictim(), SPELL_STAMPEDE, false);
                    events.ScheduleEvent(EVENT_STAMPEDE, 15s);
                    break;
                case EVENT_WHIRLING_SLASH:
                    if (++phaseCounter >= 3)
                    {
                        ScheduleEvents(false);
                        me->CastSpell(me, SPELL_TRANSFORM_TO_RHINO, false);
                        Talk(SAY_TRANSFORM_1);
                        phaseCounter = 0;
                        return;
                    }
                    events.ScheduleEvent(EVENT_WHIRLING_SLASH, 21s);
                    me->CastSpell(me, SPELL_WHIRLING_SLASH, false);
                    break;
                case EVENT_PUNCTURE:
                    me->CastSpell(me->GetVictim(), SPELL_PUNCTURE, false);
                    events.ScheduleEvent(EVENT_PUNCTURE, 8s);
                    break;
                case EVENT_ENRAGE:
                    me->CastSpell(me, SPELL_ENRAGE, false);
                    events.ScheduleEvent(EVENT_ENRAGE, 20s);
                    break;
                case EVENT_STOMP:
                    if (Unit* target = SelectTarget(SelectTargetMethod::Random, 0, 30.0f, true))
                        me->CastSpell(target, SPELL_STOMP, false);
                    events.ScheduleEvent(EVENT_STOMP, 20s);
                    break;
                case EVENT_IMPALING_CHARGE:
                    if (++phaseCounter >= 3)
                    {
                        ScheduleEvents(true);
                        me->CastSpell(me, SPELL_TRANSFORM_TO_TROLL, false);
                        Talk(SAY_TRANSFORM_2);
                        phaseCounter = 0;
                        return;
                    }
                    events.ScheduleEvent(EVENT_IMPALING_CHARGE, 21s);
                    if (Unit* target = SelectTarget(SelectTargetMethod::Random, 1, 100.0f, true))
                    {
                        me->CastSpell(target, SPELL_IMPALING_CHARGE, false);
                        impaledList.insert(target->GetGUID());
                    }
                    break;
            }
 
            DoMeleeAttackIfReady();
        }

References Unit::CastSpell(), UnitAI::DoMeleeAttackIfReady(), EVENT_ENRAGE, EVENT_IMPALING_CHARGE, EVENT_PUNCTURE, EVENT_STAMPEDE, EVENT_STOMP, EVENT_WHIRLING_SLASH, Unit::GetVictim(), Unit::HasUnitState(), impaledList, ScriptedAI::me, phaseCounter, SAY_SUMMON_RHINO, SAY_TRANSFORM_1, SAY_TRANSFORM_2, ScheduleEvents(), UnitAI::SelectTarget(), SPELL_ENRAGE, SPELL_IMPALING_CHARGE, SPELL_PUNCTURE, SPELL_STAMPEDE, SPELL_STOMP, SPELL_TRANSFORM_TO_RHINO, SPELL_TRANSFORM_TO_TROLL, SPELL_WHIRLING_SLASH, UNIT_STATE_CASTING, UNIT_STATE_CHARGING, and CreatureAI::UpdateVictim().

Member Data Documentation

impaledList

GuidSet boss_gal_darah::boss_gal_darahAI::impaledList

Referenced by GetData(), Reset(), and UpdateAI().

phaseCounter

uint8 boss_gal_darah::boss_gal_darahAI::phaseCounter

Referenced by Reset(), and UpdateAI().