pet_hunter.cpp

Go to the documentation of this file.

/*
 * This file is part of the TrinityCore Project. See AUTHORS file for Copyright information
 *
 * 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, see <http://www.gnu.org/licenses/>.
 */
 
/*
 * Ordered alphabetically using scriptname.
 * Scriptnames of files in this file should be prefixed with "npc_pet_hun_".
 */
 
#include "ScriptMgr.h"
#include "Containers.h"
#include "CreatureAIImpl.h"
#include "ScriptedCreature.h"
#include "TemporarySummon.h"
 
enum HunterSpells
{
 SPELL_HUNTER_CRIPPLING_POISON = 30981, // Viper
 SPELL_HUNTER_DEADLY_POISON_PASSIVE = 34657, // Venomous Snake
 SPELL_HUNTER_MIND_NUMBING_POISON = 25810 // Viper
};
 
enum HunterCreatures
{
 NPC_HUNTER_VIPER = 19921
};
 
struct npc_pet_hunter_snake_trap : public ScriptedAI
{
 npc_pet_hunter_snake_trap(Creature* creature) : ScriptedAI(creature), _isViper(false), _spellTimer(0) { }
 
 void JustEngagedWith(Unit* /*who*/) override { }
 
 void JustAppeared() override
 {
 _isViper = me->GetEntry() == NPC_HUNTER_VIPER ? true : false;
 
 me->SetMaxHealth(uint32(107 * (me->GetLevel() - 40) * 0.025f));
 // Add delta to make them not all hit the same time
 me->SetBaseAttackTime(BASE_ATTACK, me->GetBaseAttackTime(BASE_ATTACK) + urandms(0,6));
 
 if (!_isViper && !me->HasAura(SPELL_HUNTER_DEADLY_POISON_PASSIVE))
 DoCast(me, SPELL_HUNTER_DEADLY_POISON_PASSIVE, true);
 }
 
 // Redefined for random target selection:
 void MoveInLineOfSight(Unit* /*who*/) override { }
 
 void UpdateAI(uint32 diff) override
 {
 if (me->GetVictim() && me->GetVictim()->HasBreakableByDamageCrowdControlAura())
 { // don't break cc
 me->GetThreatManager().ClearFixate();
 me->InterruptNonMeleeSpells(false);
 me->AttackStop();
 return;
 }
 
 if (me->IsSummon() && !me->GetThreatManager().GetFixateTarget())
 { // find new target
 Unit* summoner = me->ToTempSummon()->GetSummonerUnit();
 
 std::vector<Unit*> targets;
 
 auto addTargetIfValid = [this, &targets, summoner](CombatReference* ref) mutable
 {
 Unit* enemy = ref->GetOther(summoner);
 if (!enemy->HasBreakableByDamageCrowdControlAura() && me->CanCreatureAttack(enemy) && me->IsWithinDistInMap(enemy, me->GetAttackDistance(enemy)))
 targets.push_back(enemy);
 };
 
 for (std::pair<ObjectGuid const, PvPCombatReference*> const& pair : summoner->GetCombatManager().GetPvPCombatRefs())
 addTargetIfValid(pair.second);
 
 if (targets.empty())
 for (std::pair<ObjectGuid const, CombatReference*> const& pair : summoner->GetCombatManager().GetPvECombatRefs())
 addTargetIfValid(pair.second);
 
 for (Unit* target : targets)
 me->EngageWithTarget(target);
 
 if (!targets.empty())
 {
 Unit* target = Trinity::Containers::SelectRandomContainerElement(targets);
 me->GetThreatManager().FixateTarget(target);
 }
 }
 
 if (!UpdateVictim())
 return;
 
 // Viper
 if (_isViper)
 {
 if (_spellTimer <= diff)
 {
 if (!urand(0, 2)) // 33% chance to cast
 DoCastVictim(RAND(SPELL_HUNTER_MIND_NUMBING_POISON, SPELL_HUNTER_CRIPPLING_POISON));
 
 _spellTimer = 3000;
 }
 else
 _spellTimer -= diff;
 }
 }
 
private:
 bool _isViper;
 uint32 _spellTimer;
};
 
void AddSC_hunter_pet_scripts()
{
 RegisterCreatureAI(npc_pet_hunter_snake_trap);
}