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pet_ai.cpp
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132 lines (109 loc) · 4.34 KB
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/* This file is part of the ScriptDev2 Project. See AUTHORS file for Copyright information
* This program is free software licensed under GPL version 2
* Please see the included DOCS/LICENSE.TXT for more information */
/* ScriptData
SDName: ScriptedPetAI
SD%Complete: 50
SDComment: Intended to be used with Guardian/Protector/Minipets. Little/no control over when pet enter/leave combat. Must be considered to be under development.
SDCategory: Npc
EndScriptData */
#include "precompiled.h"
#include "pet_ai.h"
ScriptedPetAI::ScriptedPetAI(Creature* pCreature) : CreatureAI(pCreature)
{}
bool ScriptedPetAI::IsVisible(Unit* pWho) const
{
return pWho && m_creature->IsWithinDist(pWho, VISIBLE_RANGE)
&& pWho->isVisibleForOrDetect(m_creature, m_creature, true);
}
void ScriptedPetAI::MoveInLineOfSight(Unit* pWho)
{
if (m_creature->getVictim())
return;
if (!m_creature->GetCharmInfo() || !m_creature->GetCharmInfo()->HasReactState(REACT_AGGRESSIVE))
return;
if (m_creature->CanInitiateAttack() && pWho->isTargetableForAttack() &&
m_creature->IsHostileTo(pWho) && pWho->isInAccessablePlaceFor(m_creature))
{
if (!m_creature->CanFly() && m_creature->GetDistanceZ(pWho) > CREATURE_Z_ATTACK_RANGE)
return;
if (m_creature->IsWithinDistInMap(pWho, m_creature->GetAttackDistance(pWho)) && m_creature->IsWithinLOSInMap(pWho))
{
pWho->RemoveSpellsCausingAura(SPELL_AURA_MOD_STEALTH);
AttackStart(pWho);
}
}
}
void ScriptedPetAI::AttackStart(Unit* pWho)
{
if (pWho && m_creature->Attack(pWho, true))
m_creature->GetMotionMaster()->MoveChase(pWho);
}
void ScriptedPetAI::AttackedBy(Unit* pAttacker)
{
if (m_creature->getVictim())
return;
if (m_creature->GetCharmInfo() && !m_creature->GetCharmInfo()->HasReactState(REACT_PASSIVE) &&
m_creature->CanReachWithMeleeAttack(pAttacker))
AttackStart(pAttacker);
}
void ScriptedPetAI::ResetPetCombat()
{
Unit* pOwner = m_creature->GetCharmerOrOwner();
if (pOwner && m_creature->GetCharmInfo() && m_creature->GetCharmInfo()->HasCommandState(COMMAND_FOLLOW))
{
m_creature->GetMotionMaster()->MoveFollow(pOwner, PET_FOLLOW_DIST, PET_FOLLOW_ANGLE);
}
else
{
m_creature->GetMotionMaster()->Clear(false);
m_creature->GetMotionMaster()->MoveIdle();
}
m_creature->AttackStop();
debug_log("SD2: ScriptedPetAI reset pet combat and stop attack.");
Reset();
}
void ScriptedPetAI::UpdatePetAI(const uint32 /*uiDiff*/)
{
DoMeleeAttackIfReady();
}
void ScriptedPetAI::UpdateAI(const uint32 uiDiff)
{
if (!m_creature->isAlive()) // should not be needed, isAlive is checked in mangos before calling UpdateAI
return;
// UpdateAllies() is done in the generic PetAI in Mangos, but we can't do this from script side.
// Unclear what side effects this has, but is something to be resolved from Mangos.
if (m_creature->getVictim()) // in combat
{
if (!m_creature->getVictim()->isTargetableForAttack())
{
// target no longer valid for pet, so either attack stops or new target are selected
// doesn't normally reach this, because of how petAi is designed in Mangos. CombatStop
// are called before this update diff, and then pet will already have no victim.
ResetPetCombat();
return;
}
// update when in combat
UpdatePetAI(uiDiff);
}
else if (m_creature->GetCharmInfo())
{
Unit* pOwner = m_creature->GetCharmerOrOwner();
if (!pOwner)
return;
if (pOwner->isInCombat() && !m_creature->GetCharmInfo()->HasReactState(REACT_PASSIVE))
{
// Not correct in all cases.
// When mob initiate attack by spell, pet should not start attack before spell landed.
AttackStart(pOwner->getAttackerForHelper());
}
else if (m_creature->GetCharmInfo()->HasCommandState(COMMAND_FOLLOW))
{
// not following, so start follow
if (!m_creature->hasUnitState(UNIT_STAT_FOLLOW))
m_creature->GetMotionMaster()->MoveFollow(pOwner, PET_FOLLOW_DIST, PET_FOLLOW_ANGLE);
// update when not in combat
UpdatePetOOCAI(uiDiff);
}
}
}