pet_dk.cpp

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/*
* This file is part of Project SkyFire https://www.projectskyfire.org. 
* See LICENSE.md file for Copyright information
*/
 
/*
 * Ordered alphabetically using scriptname.
 * Scriptnames of files in this file should be prefixed with "npc_pet_dk_".
 */
 
#include "ScriptMgr.h"
#include "ScriptedCreature.h"
#include "CombatAI.h"
#include "Cell.h"
#include "CellImpl.h"
#include "GridNotifiers.h"
#include "GridNotifiersImpl.h"
 
enum DeathKnightSpells
{
    SPELL_DK_SUMMON_GARGOYLE_1      = 49206,
    SPELL_DK_SUMMON_GARGOYLE_2      = 50514,
    SPELL_DK_DISMISS_GARGOYLE       = 50515,
    SPELL_DK_SANCTUARY              = 54661
};
 
class npc_pet_dk_ebon_gargoyle : public CreatureScript
{
    public:
        npc_pet_dk_ebon_gargoyle() : CreatureScript("npc_pet_dk_ebon_gargoyle") { }
 
        struct npc_pet_dk_ebon_gargoyleAI : CasterAI
        {
            npc_pet_dk_ebon_gargoyleAI(Creature* creature) : CasterAI(creature) { }
 
            void InitializeAI() OVERRIDE
            {
                CasterAI::InitializeAI();
                uint64 ownerGuid = me->GetOwnerGUID();
                if (!ownerGuid)
                    return;
 
                // Not needed to be despawned now
                _despawnTimer = 0;
                // Find victim of Summon Gargoyle spell
                std::list<Unit*> targets;
                Skyfire::AnyUnfriendlyUnitInObjectRangeCheck u_check(me, me, 30.0f);
                Skyfire::UnitListSearcher<Skyfire::AnyUnfriendlyUnitInObjectRangeCheck> searcher(me, targets, u_check);
                me->VisitNearbyObject(30.0f, searcher);
                for (std::list<Unit*>::const_iterator iter = targets.begin(); iter != targets.end(); ++iter)
                    if ((*iter)->GetAura(SPELL_DK_SUMMON_GARGOYLE_1, ownerGuid))
                    {
                        me->Attack((*iter), false);
                        break;
                    }
            }
 
            void JustDied(Unit* /*killer*/) OVERRIDE
            {
                // Stop Feeding Gargoyle when it dies
                if (Unit* owner = me->GetOwner())
                    owner->RemoveAurasDueToSpell(SPELL_DK_SUMMON_GARGOYLE_2);
            }
 
            // Fly away when dismissed
            void SpellHit(Unit* source, SpellInfo const* spell) OVERRIDE
            {
                if (spell->Id != SPELL_DK_DISMISS_GARGOYLE || !me->IsAlive())
                    return;
 
                Unit* owner = me->GetOwner();
                if (!owner || owner != source)
                    return;
 
                // Stop Fighting
                me->ApplyModFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NON_ATTACKABLE, true);
 
                // Sanctuary
                me->CastSpell(me, SPELL_DK_SANCTUARY, true);
                me->SetReactState(REACT_PASSIVE);

                // Fly Away
                me->SetCanFly(true);
                me->SetSpeed(MOVE_FLIGHT, 0.75f, true);
                me->SetSpeed(MOVE_RUN, 0.75f, true);
                float x = me->GetPositionX() + 20 * std::cos(me->GetOrientation());
                float y = me->GetPositionY() + 20 * std::sin(me->GetOrientation());
                float z = me->GetPositionZ() + 40;
                me->GetMotionMaster()->Clear(false);
                me->GetMotionMaster()->MovePoint(0, x, y, z);
 
                // Despawn as soon as possible
                _despawnTimer = 4 * IN_MILLISECONDS;
            }
 
            void UpdateAI(uint32 diff) OVERRIDE
            {
                if (_despawnTimer > 0)
                {
                    if (_despawnTimer > diff)
                        _despawnTimer -= diff;
                    else
                        me->DespawnOrUnsummon();
                    return;
                }
 
                CasterAI::UpdateAI(diff);
            }
 
        private:
           uint32 _despawnTimer;
        };
 
        CreatureAI* GetAI(Creature* creature) const OVERRIDE
        {
            return new npc_pet_dk_ebon_gargoyleAI(creature);
        }
};
 
void AddSC_deathknight_pet_scripts()
{
    new npc_pet_dk_ebon_gargoyle();
}