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/*
* Copyright (C) 2016+ AzerothCore <www.azerothcore.org>, released under GNU GPL v2 license: https://github.com/azerothcore/azerothcore-wotlk/blob/master/LICENSE-GPL2
* Copyright (C) 2008-2016 TrinityCore <http://www.trinitycore.org/>
* Copyright (C) 2005-2009 MaNGOS <http://getmangos.com/>
*/
#include "CreatureAI.h"
#include "CreatureAIImpl.h"
#include "Creature.h"
#include "World.h"
#include "SpellMgr.h"
#include "Vehicle.h"
#include "Log.h"
#include "MapReference.h"
#include "Player.h"
#include "CreatureTextMgr.h"
//Disable CreatureAI when charmed
void CreatureAI::OnCharmed(bool /*apply*/)
{
//me->IsAIEnabled = !apply;*/
me->NeedChangeAI = true;
me->IsAIEnabled = false;
}
AISpellInfoType* UnitAI::AISpellInfo;
AISpellInfoType* GetAISpellInfo(uint32 i) { return &CreatureAI::AISpellInfo[i]; }
void CreatureAI::Talk(uint8 id, WorldObject const* whisperTarget /*= NULL*/)
{
sCreatureTextMgr->SendChat(me, id, whisperTarget);
}
void CreatureAI::DoZoneInCombat(Creature* creature /*= NULL*/, float maxRangeToNearestTarget /* = 50.0f*/)
{
if (!creature)
creature = me;
if (!creature->CanHaveThreatList() || creature->IsInEvadeMode())
return;
Map* map = creature->GetMap();
if (!map->IsDungeon()) //use IsDungeon instead of Instanceable, in case battlegrounds will be instantiated
{
sLog->outError("DoZoneInCombat call for map that isn't an instance (creature entry = %d)", creature->GetTypeId() == TYPEID_UNIT ? creature->ToCreature()->GetEntry() : 0);
return;
}
if (!creature->HasReactState(REACT_PASSIVE) && !creature->GetVictim())
{
if (Unit* nearTarget = creature->SelectNearestTarget(maxRangeToNearestTarget))
creature->AI()->AttackStart(nearTarget);
else if (creature->IsSummon())
{
if (Unit* summoner = creature->ToTempSummon()->GetSummoner())
{
Unit* target = summoner->getAttackerForHelper();
if (!target && summoner->CanHaveThreatList() && !summoner->getThreatManager().isThreatListEmpty())
target = summoner->getThreatManager().getHostilTarget();
if (target && (creature->IsFriendlyTo(summoner) || creature->IsHostileTo(target)))
creature->AI()->AttackStart(target);
}
}
}
if (!creature->HasReactState(REACT_PASSIVE) && !creature->GetVictim())
{
sLog->outError("DoZoneInCombat called for creature that has empty threat list (creature entry = %u)", creature->GetEntry());
return;
}
Map::PlayerList const& playerList = map->GetPlayers();
if (playerList.isEmpty())
return;
for (Map::PlayerList::const_iterator itr = playerList.begin(); itr != playerList.end(); ++itr)
{
if (Player* player = itr->GetSource())
{
if (player->IsGameMaster())
continue;
if (player->IsAlive())
{
creature->SetInCombatWith(player);
player->SetInCombatWith(creature);
creature->AddThreat(player, 0.0f);
}
/* Causes certain things to never leave the threat list (Priest Lightwell, etc):
for (Unit::ControlSet::const_iterator itr = player->m_Controlled.begin(); itr != player->m_Controlled.end(); ++itr)
{
creature->SetInCombatWith(*itr);
(*itr)->SetInCombatWith(creature);
creature->AddThreat(*itr, 0.0f);
}*/
}
}
}
// scripts does not take care about MoveInLineOfSight loops
// MoveInLineOfSight can be called inside another MoveInLineOfSight and cause stack overflow
void CreatureAI::MoveInLineOfSight_Safe(Unit* who)
{
if (m_MoveInLineOfSight_locked == true)
return;
m_MoveInLineOfSight_locked = true;
MoveInLineOfSight(who);
m_MoveInLineOfSight_locked = false;
}
void CreatureAI::MoveInLineOfSight(Unit* who)
{
if (me->GetVictim())
return;
// pussywizard: civilian, non-combat pet or any other NOT HOSTILE TO ANYONE (!)
if (me->IsMoveInLineOfSightDisabled())
if (me->GetCreatureType() == CREATURE_TYPE_NON_COMBAT_PET || // nothing more to do, return
!who->IsInCombat() || // if not in combat, nothing more to do
!me->IsWithinDist(who, ATTACK_DISTANCE)) // if in combat and in dist - neutral to all can actually assist other creatures
return;
if (me->CanStartAttack(who))
AttackStart(who);
}
// Distract creature, if player gets too close while stealthed/prowling
void CreatureAI::TriggerAlert(Unit const* who) const
{
// If there's no target, or target isn't a player do nothing
if (!who || who->GetTypeId() != TYPEID_PLAYER)
return;
// If this unit isn't an NPC, is already distracted, is in combat, is confused, stunned or fleeing, do nothing
if (me->GetTypeId() != TYPEID_UNIT || me->IsInCombat() || me->HasUnitState(UNIT_STATE_CONFUSED | UNIT_STATE_STUNNED | UNIT_STATE_FLEEING | UNIT_STATE_DISTRACTED))
return;
// Only alert for hostiles!
if (me->IsCivilian() || me->HasReactState(REACT_PASSIVE) || !me->IsHostileTo(who) || !me->_IsTargetAcceptable(who))
return;
// Send alert sound (if any) for this creature
me->SendAIReaction(AI_REACTION_ALERT);
// Face the unit (stealthed player) and set distracted state for 5 seconds
me->SetFacingTo(me->GetAngle(who->GetPositionX(), who->GetPositionY()));
me->StopMoving();
me->GetMotionMaster()->MoveDistract(5 * IN_MILLISECONDS);
}
void CreatureAI::EnterEvadeMode()
{
if (!_EnterEvadeMode())
return;
#if defined(ENABLE_EXTRAS) && defined(ENABLE_EXTRA_LOGS)
sLog->outDebug(LOG_FILTER_UNITS, "Creature %u enters evade mode.", me->GetEntry());
#endif
if (!me->GetVehicle()) // otherwise me will be in evade mode forever
{
if (Unit* owner = me->GetCharmerOrOwner())
{
me->GetMotionMaster()->Clear(false);
me->GetMotionMaster()->MoveFollow(owner, PET_FOLLOW_DIST, me->GetFollowAngle(), MOTION_SLOT_ACTIVE);
}
else
{
// Required to prevent attacking creatures that are evading and cause them to reenter combat
// Does not apply to MoveFollow
me->AddUnitState(UNIT_STATE_EVADE);
me->GetMotionMaster()->MoveTargetedHome();
}
}
Reset();
if (me->IsVehicle()) // use the same sequence of addtoworld, aireset may remove all summons!
me->GetVehicleKit()->Reset(true);
}
/*void CreatureAI::AttackedBy(Unit* attacker)
{
if (!me->GetVictim())
AttackStart(attacker);
}*/
void CreatureAI::SetGazeOn(Unit* target)
{
if (me->IsValidAttackTarget(target))
{
AttackStart(target);
me->SetReactState(REACT_PASSIVE);
}
}
bool CreatureAI::UpdateVictimWithGaze()
{
if (!me->IsInCombat())
return false;
if (me->HasReactState(REACT_PASSIVE))
{
if (me->GetVictim())
return true;
else
me->SetReactState(REACT_AGGRESSIVE);
}
if (Unit* victim = me->SelectVictim())
AttackStart(victim);
return me->GetVictim();
}
bool CreatureAI::UpdateVictim()
{
if (!me->IsInCombat())
return false;
if (!me->HasReactState(REACT_PASSIVE))
{
if (Unit* victim = me->SelectVictim())
AttackStart(victim);
return me->GetVictim();
}
// xinef: if we have any victim, just return true
else if (me->GetVictim() && me->GetExactDist(me->GetVictim()) < 30.0f)
return true;
else if (me->getThreatManager().isThreatListEmpty())
{
EnterEvadeMode();
return false;
}
return true;
}
bool CreatureAI::_EnterEvadeMode()
{
if (!me->IsAlive())
return false;
// don't remove vehicle auras, passengers aren't supposed to drop off the vehicle
// don't remove clone caster on evade (to be verified)
me->RemoveEvadeAuras();
// sometimes bosses stuck in combat?
me->DeleteThreatList();
me->CombatStop(true);
me->LoadCreaturesAddon(true);
me->SetLootRecipient(nullptr);
me->ResetPlayerDamageReq();
me->SetLastDamagedTime(0);
if (me->IsInEvadeMode())
return false;
return true;
}
Creature* CreatureAI::DoSummon(uint32 entry, const Position& pos, uint32 despawnTime, TempSummonType summonType)
{
return me->SummonCreature(entry, pos, summonType, despawnTime);
}
Creature* CreatureAI::DoSummon(uint32 entry, WorldObject* obj, float radius, uint32 despawnTime, TempSummonType summonType)
{
Position pos;
obj->GetRandomNearPosition(pos, radius);
return me->SummonCreature(entry, pos, summonType, despawnTime);
}
Creature* CreatureAI::DoSummonFlyer(uint32 entry, WorldObject* obj, float flightZ, float radius, uint32 despawnTime, TempSummonType summonType)
{
Position pos;
obj->GetRandomNearPosition(pos, radius);
pos.m_positionZ += flightZ;
return me->SummonCreature(entry, pos, summonType, despawnTime);
}
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