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GuardAI.cpp
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GuardAI.cpp
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/*
* Copyright (C) 2005-2012 MaNGOS <http://getmangos.com/>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "GuardAI.h"
#include "Errors.h"
#include "Creature.h"
#include "Player.h"
#include "World.h"
int GuardAI::Permissible(const Creature* creature)
{
if (creature->IsGuard())
return PERMIT_BASE_SPECIAL;
return PERMIT_BASE_NO;
}
GuardAI::GuardAI(Creature* c) : CreatureAI(c), i_state(STATE_NORMAL), i_tracker(TIME_INTERVAL_LOOK)
{
}
void GuardAI::MoveInLineOfSight(Unit* u)
{
// Ignore Z for flying creatures
if (!m_creature->CanFly() && m_creature->GetDistanceZ(u) > CREATURE_Z_ATTACK_RANGE)
return;
if (!m_creature->getVictim() && u->isTargetableForAttack() &&
(u->IsHostileToPlayers() || m_creature->IsHostileTo(u) /*|| u->getVictim() && m_creature->IsFriendlyTo(u->getVictim())*/) &&
u->isInAccessablePlaceFor(m_creature))
{
float attackRadius = m_creature->GetAttackDistance(u);
if (m_creature->IsWithinDistInMap(u, attackRadius))
{
// Need add code to let guard support player
AttackStart(u);
u->RemoveSpellsCausingAura(SPELL_AURA_MOD_STEALTH);
}
}
}
void GuardAI::EnterEvadeMode()
{
if (!m_creature->isAlive())
{
DEBUG_FILTER_LOG(LOG_FILTER_AI_AND_MOVEGENSS, "Creature stopped attacking because he's dead [guid=%u]", m_creature->GetGUIDLow());
m_creature->StopMoving();
m_creature->GetMotionMaster()->MoveIdle();
i_state = STATE_NORMAL;
i_victimGuid.Clear();
m_creature->CombatStop(true);
m_creature->DeleteThreatList();
return;
}
Unit* victim = m_creature->GetMap()->GetUnit(i_victimGuid);
if (!victim)
{
DEBUG_FILTER_LOG(LOG_FILTER_AI_AND_MOVEGENSS, "Creature stopped attacking, no victim [guid=%u]", m_creature->GetGUIDLow());
}
else if (!victim->isAlive())
{
DEBUG_FILTER_LOG(LOG_FILTER_AI_AND_MOVEGENSS, "Creature stopped attacking, victim is dead [guid=%u]", m_creature->GetGUIDLow());
}
else if (victim->HasStealthAura())
{
DEBUG_FILTER_LOG(LOG_FILTER_AI_AND_MOVEGENSS, "Creature stopped attacking, victim is in stealth [guid=%u]", m_creature->GetGUIDLow());
}
else if (victim->IsTaxiFlying())
{
DEBUG_FILTER_LOG(LOG_FILTER_AI_AND_MOVEGENSS, "Creature stopped attacking, victim is in flight [guid=%u]", m_creature->GetGUIDLow());
}
else
{
DEBUG_FILTER_LOG(LOG_FILTER_AI_AND_MOVEGENSS, "Creature stopped attacking, victim out run him [guid=%u]", m_creature->GetGUIDLow());
}
m_creature->RemoveAllAurasOnEvade();
m_creature->DeleteThreatList();
i_victimGuid.Clear();
m_creature->CombatStop(true);
i_state = STATE_NORMAL;
// Remove ChaseMovementGenerator from MotionMaster stack list, and add HomeMovementGenerator instead
if (m_creature->GetMotionMaster()->GetCurrentMovementGeneratorType() == CHASE_MOTION_TYPE)
m_creature->GetMotionMaster()->MoveTargetedHome();
}
void GuardAI::UpdateAI(const uint32 /*diff*/)
{
// update i_victimGuid if i_creature.getVictim() !=0 and changed
if (!m_creature->SelectHostileTarget() || !m_creature->getVictim())
return;
i_victimGuid = m_creature->getVictim()->GetObjectGuid();
DoMeleeAttackIfReady();
}
bool GuardAI::IsVisible(Unit* pl) const
{
return m_creature->IsWithinDist(pl, sWorld.getConfig(CONFIG_FLOAT_SIGHT_GUARDER))
&& pl->isVisibleForOrDetect(m_creature, m_creature, true);
}
void GuardAI::AttackStart(Unit* u)
{
if (!u)
return;
if (m_creature->Attack(u, true))
{
i_victimGuid = u->GetObjectGuid();
m_creature->AddThreat(u);
m_creature->SetInCombatWith(u);
u->SetInCombatWith(m_creature);
HandleMovementOnAttackStart(u);
}
}
void GuardAI::JustDied(Unit* killer)
{
if (Player* pkiller = killer->GetCharmerOrOwnerPlayerOrPlayerItself())
m_creature->SendZoneUnderAttackMessage(pkiller);
}