mirror of
https://github.com/TrinityCore/TrinityCore.git
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267 lines
8.4 KiB
C++
267 lines
8.4 KiB
C++
/*
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* Copyright (C) 2008-2014 TrinityCore <http://www.trinitycore.org/>
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* Copyright (C) 2005-2009 MaNGOS <http://getmangos.com/>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "CreatureAI.h"
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#include "CreatureAIImpl.h"
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#include "Creature.h"
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#include "World.h"
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#include "SpellMgr.h"
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#include "Vehicle.h"
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#include "Log.h"
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#include "MapReference.h"
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#include "Player.h"
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#include "CreatureTextMgr.h"
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//Disable CreatureAI when charmed
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void CreatureAI::OnCharmed(bool /*apply*/)
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{
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//me->IsAIEnabled = !apply;*/
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me->NeedChangeAI = true;
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me->IsAIEnabled = false;
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}
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AISpellInfoType* UnitAI::AISpellInfo;
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AISpellInfoType* GetAISpellInfo(uint32 i) { return &CreatureAI::AISpellInfo[i]; }
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void CreatureAI::Talk(uint8 id, WorldObject const* whisperTarget /*= NULL*/)
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{
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sCreatureTextMgr->SendChat(me, id, whisperTarget);
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}
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void CreatureAI::DoZoneInCombat(Creature* creature /*= NULL*/, float maxRangeToNearestTarget /* = 50.0f*/)
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{
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if (!creature)
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creature = me;
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if (!creature->CanHaveThreatList())
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return;
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Map* map = creature->GetMap();
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if (!map->IsDungeon()) //use IsDungeon instead of Instanceable, in case battlegrounds will be instantiated
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{
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TC_LOG_ERROR("misc", "DoZoneInCombat call for map that isn't an instance (creature entry = %d)", creature->GetTypeId() == TYPEID_UNIT ? creature->ToCreature()->GetEntry() : 0);
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return;
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}
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if (!creature->HasReactState(REACT_PASSIVE) && !creature->GetVictim())
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{
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if (Unit* nearTarget = creature->SelectNearestTarget(maxRangeToNearestTarget))
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creature->AI()->AttackStart(nearTarget);
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else if (creature->IsSummon())
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{
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if (Unit* summoner = creature->ToTempSummon()->GetSummoner())
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{
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Unit* target = summoner->getAttackerForHelper();
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if (!target && summoner->CanHaveThreatList() && !summoner->getThreatManager().isThreatListEmpty())
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target = summoner->getThreatManager().getHostilTarget();
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if (target && (creature->IsFriendlyTo(summoner) || creature->IsHostileTo(target)))
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creature->AI()->AttackStart(target);
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}
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}
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}
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// Intended duplicated check, the code above this should select a victim
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// If it can't find a suitable attack target then we should error out.
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if (!creature->HasReactState(REACT_PASSIVE) && !creature->GetVictim())
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{
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TC_LOG_ERROR("misc", "DoZoneInCombat called for creature that has empty threat list (creature entry = %u)", creature->GetEntry());
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return;
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}
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Map::PlayerList const& playerList = map->GetPlayers();
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if (playerList.isEmpty())
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return;
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for (Map::PlayerList::const_iterator itr = playerList.begin(); itr != playerList.end(); ++itr)
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{
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if (Player* player = itr->GetSource())
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{
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if (player->IsGameMaster())
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continue;
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if (player->IsAlive())
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{
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creature->SetInCombatWith(player);
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player->SetInCombatWith(creature);
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creature->AddThreat(player, 0.0f);
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}
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/* Causes certain things to never leave the threat list (Priest Lightwell, etc):
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for (Unit::ControlList::const_iterator itr = player->m_Controlled.begin(); itr != player->m_Controlled.end(); ++itr)
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{
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creature->SetInCombatWith(*itr);
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(*itr)->SetInCombatWith(creature);
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creature->AddThreat(*itr, 0.0f);
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}*/
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}
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}
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}
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// scripts does not take care about MoveInLineOfSight loops
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// MoveInLineOfSight can be called inside another MoveInLineOfSight and cause stack overflow
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void CreatureAI::MoveInLineOfSight_Safe(Unit* who)
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{
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if (m_MoveInLineOfSight_locked == true)
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return;
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m_MoveInLineOfSight_locked = true;
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MoveInLineOfSight(who);
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m_MoveInLineOfSight_locked = false;
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}
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void CreatureAI::MoveInLineOfSight(Unit* who)
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{
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if (me->GetVictim())
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return;
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if (me->GetCreatureType() == CREATURE_TYPE_NON_COMBAT_PET) // non-combat pets should just stand there and look good;)
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return;
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if (me->CanStartAttack(who, false))
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AttackStart(who);
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//else if (who->GetVictim() && me->IsFriendlyTo(who)
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// && me->IsWithinDistInMap(who, sWorld->getIntConfig(CONFIG_CREATURE_FAMILY_ASSISTANCE_RADIUS))
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// && me->CanStartAttack(who->GetVictim(), true)) /// @todo if we use true, it will not attack it when it arrives
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// me->GetMotionMaster()->MoveChase(who->GetVictim());
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}
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void CreatureAI::EnterEvadeMode()
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{
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if (!_EnterEvadeMode())
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return;
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TC_LOG_DEBUG("entities.unit", "Creature %u enters evade mode.", me->GetEntry());
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if (!me->GetVehicle()) // otherwise me will be in evade mode forever
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{
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if (Unit* owner = me->GetCharmerOrOwner())
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{
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me->GetMotionMaster()->Clear(false);
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me->GetMotionMaster()->MoveFollow(owner, PET_FOLLOW_DIST, me->GetFollowAngle(), MOTION_SLOT_ACTIVE);
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}
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else
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{
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// Required to prevent attacking creatures that are evading and cause them to reenter combat
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// Does not apply to MoveFollow
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me->AddUnitState(UNIT_STATE_EVADE);
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me->GetMotionMaster()->MoveTargetedHome();
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}
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}
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Reset();
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if (me->IsVehicle()) // use the same sequence of addtoworld, aireset may remove all summons!
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me->GetVehicleKit()->Reset(true);
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}
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/*void CreatureAI::AttackedBy(Unit* attacker)
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{
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if (!me->GetVictim())
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AttackStart(attacker);
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}*/
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void CreatureAI::SetGazeOn(Unit* target)
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{
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if (me->IsValidAttackTarget(target))
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{
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AttackStart(target);
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me->SetReactState(REACT_PASSIVE);
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}
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}
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bool CreatureAI::UpdateVictimWithGaze()
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{
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if (!me->IsInCombat())
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return false;
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if (me->HasReactState(REACT_PASSIVE))
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{
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if (me->GetVictim())
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return true;
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else
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me->SetReactState(REACT_AGGRESSIVE);
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}
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if (Unit* victim = me->SelectVictim())
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AttackStart(victim);
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return me->GetVictim();
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}
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bool CreatureAI::UpdateVictim()
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{
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if (!me->IsInCombat())
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return false;
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if (!me->HasReactState(REACT_PASSIVE))
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{
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if (Unit* victim = me->SelectVictim())
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AttackStart(victim);
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return me->GetVictim();
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}
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else if (me->getThreatManager().isThreatListEmpty())
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{
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EnterEvadeMode();
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return false;
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}
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return true;
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}
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bool CreatureAI::_EnterEvadeMode()
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{
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if (!me->IsAlive())
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return false;
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// don't remove vehicle auras, passengers aren't supposed to drop off the vehicle
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// don't remove clone caster on evade (to be verified)
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me->RemoveAllAurasExceptType(SPELL_AURA_CONTROL_VEHICLE, SPELL_AURA_CLONE_CASTER);
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// sometimes bosses stuck in combat?
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me->DeleteThreatList();
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me->CombatStop(true);
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me->LoadCreaturesAddon();
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me->SetLootRecipient(NULL);
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me->ResetPlayerDamageReq();
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me->SetLastDamagedTime(0);
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if (me->IsInEvadeMode())
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return false;
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return true;
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}
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Creature* CreatureAI::DoSummon(uint32 entry, const Position& pos, uint32 despawnTime, TempSummonType summonType)
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{
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return me->SummonCreature(entry, pos, summonType, despawnTime);
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}
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Creature* CreatureAI::DoSummon(uint32 entry, WorldObject* obj, float radius, uint32 despawnTime, TempSummonType summonType)
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{
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Position pos;
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obj->GetRandomNearPosition(pos, radius);
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return me->SummonCreature(entry, pos, summonType, despawnTime);
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}
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Creature* CreatureAI::DoSummonFlyer(uint32 entry, WorldObject* obj, float flightZ, float radius, uint32 despawnTime, TempSummonType summonType)
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{
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Position pos;
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obj->GetRandomNearPosition(pos, radius);
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pos.m_positionZ += flightZ;
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return me->SummonCreature(entry, pos, summonType, despawnTime);
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}
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