gistfile1.cpp

// Dark Iron Guzzler in the Brewfest achievement 'Down With The Dark Iron'
enum DarkIronGuzzler
{
    NPC_DARK_IRON_GUZZLER       = 23709,
    NPC_DARK_IRON_HERALD        = 24536,
    NPC_DARK_IRON_SPAWN_BUNNY   = 23894,

    NPC_FESTIVE_KEG_1           = 23702, // Thunderbrew Festive Keg
    NPC_FESTIVE_KEG_2           = 23700, // Barleybrew Festive Keg
    NPC_FESTIVE_KEG_3           = 23706, // Gordok Festive Keg
    NPC_FESTIVE_KEG_4           = 24373, // T'chalis's Festive Keg
    NPC_FESTIVE_KEG_5           = 24372, // Drohn's Festive Keg

    SPELL_GO_TO_NEW_TARGET      = 42498,
    SPELL_ATTACK_KEG            = 42393,
    SPELL_RETREAT               = 42341,
    SPELL_DRINK                 = 42436,

    SAY_RANDOM              = 0,
};
 
class npc_dark_iron_guzzler : public CreatureScript
{
public:
    npc_dark_iron_guzzler() : CreatureScript("npc_dark_iron_guzzler") { }

    CreatureAI *GetAI(Creature* creature) const
    {
        return new npc_dark_iron_guzzlerAI(creature);
    }

    struct npc_dark_iron_guzzlerAI : public ScriptedAI
    {
        npc_dark_iron_guzzlerAI(Creature* creature) : ScriptedAI(creature) { }

        bool atKeg;
        bool playersLost;
        bool barleyAlive;
        bool thunderAlive;
        bool gordokAlive;
        bool drohnAlive;
        bool tchaliAlive;

        uint32 AttackKegTimer;
        uint32 TalkTimer;

        void Reset()
        {
            AttackKegTimer = 5000;
            TalkTimer = (urand(1000, 120000));
            me->AddUnitMovementFlag(MOVEMENTFLAG_WALKING);
        }

        void IsSummonedBy(Unit* summoner)
        {
            // Only cast the spell on spawn
            DoCast(me, SPELL_GO_TO_NEW_TARGET);
        }

        // These values are set through SAI - when a Festive Keg dies it will set data to all Dark Iron Guzzlers within 3 yards (the killers)
        void SetData(uint32 type, uint32 data)
        {
            if (type == 10 && data == 10)
            {
                DoCast(me, SPELL_GO_TO_NEW_TARGET);
                thunderAlive = false;
            }

            if (type == 11 && data == 11)
            {
                DoCast(me, SPELL_GO_TO_NEW_TARGET);
                barleyAlive = false;
            }

            if (type == 12 && data == 12)
            {
                DoCast(me, SPELL_GO_TO_NEW_TARGET);
                gordokAlive = false;
            }

            if (type == 13 && data == 13)
            {
                DoCast(me, SPELL_GO_TO_NEW_TARGET);
                drohnAlive = false;
            }

            if (type == 14 && data == 14)
            {
                DoCast(me, SPELL_GO_TO_NEW_TARGET);
                tchaliAlive = false;
            }
        }

        // As you can see here we do not have to use a spellscript for this
        void SpellHit(Unit* caster, const SpellInfo* spell)
        {
            if (spell->Id == SPELL_DRINK)
            {
                // Fake death - it's only visual!
                me->SetUInt32Value(UNIT_FIELD_BYTES_1, UNIT_STAND_STATE_DEAD);
                me->StopMoving();

                // Time based on information from videos
                me->ForcedDespawn(7000);
            }

            // Retreat - run back
            if (spell->Id == SPELL_RETREAT)
            {
                // Remove walking flag so we start running
                me->RemoveUnitMovementFlag(MOVEMENTFLAG_WALKING);

                if (me->GetAreaId() == 1296)
                {
                    me->GetMotionMaster()->MovePoint(1, 1197.63f, -4293.571f, 21.243f);
                }
                else if (me->GetAreaId() == 1)
                {
                     me->GetMotionMaster()->MovePoint(2, -5152.3f, -603.529f, 398.356f);
                }
            }

            if (spell->Id == SPELL_GO_TO_NEW_TARGET)
            {
                // If we're at Durotar we target different kegs if we are at at Dun Morogh
                if (me->GetAreaId() == 1296)
                {
                    if (drohnAlive && gordokAlive && tchaliAlive)
                    {
                        switch (urand(0, 2))
                        {
                            case 0: // Gordok Festive Keg
                                me->GetMotionMaster()->MovePoint(4, 1220.86f, -4297.37f, 21.192f);
                                break;
                            case 1: // Drohn's Festive Keg
                                me->GetMotionMaster()->MovePoint(5, 1185.98f, -4312.98f, 21.294f);
                                break;
                            case 2: // Ti'chali's Festive Keg
                                me->GetMotionMaster()->MovePoint(6, 1184.12f, -4275.21f, 21.191f);
                                break;
                        }
                    }
                    else if (!drohnAlive)
                    {
                        switch (urand(0, 1))
                        {
                            case 0: // Gordok Festive Keg
                                me->GetMotionMaster()->MovePoint(4, 1220.86f, -4297.37f, 21.192f);
                                break;
                            case 1: // Ti'chali's Festive Keg
                                me->GetMotionMaster()->MovePoint(6, 1184.12f, -4275.21f, 21.191f);
                                break;
                        }
                    }
                    else if (!gordokAlive)
                    {
                        switch (urand(0, 1))
                        {
                            case 0: // Drohn's Festive Keg
                                me->GetMotionMaster()->MovePoint(5, 1185.98f, -4312.98f, 21.294f);
                                break;
                            case 1: // Ti'chali's Festive Keg
                                me->GetMotionMaster()->MovePoint(6, 1184.12f, -4275.21f, 21.191f);
                                break;
                        }
                    }
                    else if (!tchaliAlive)
                    {
                        switch (urand(0, 1))
                        {
                            case 0: // Gordok Festive Keg
                                me->GetMotionMaster()->MovePoint(4, 1220.86f, -4297.37f, 21.192f);
                                break;
                            case 1: // Drohn's Festive Keg
                                me->GetMotionMaster()->MovePoint(5, 1185.98f, -4312.98f, 21.294f);
                                break;
                        }
                    }
                }
                // If we're at Dun Morogh we target different kegs if we are at Durotar
                else if (me->GetAreaId() == 1)
                {
                    if (barleyAlive && gordokAlive && thunderAlive)
                    {
                        switch (urand(0, 2))
                        {
                            case 0: // Barleybrew Festive Keg
                                me->GetMotionMaster()->MovePoint(7, -5183.67f, -599.58f, 397.177f);
                                break;
                            case 1: // Thunderbrew Festive Keg
                                me->GetMotionMaster()->MovePoint(8, -5159.53f, -629.52f, 397.213f);
                                break;
                            case 2: // Gordok Festive Keg
                                me->GetMotionMaster()->MovePoint(9, -5148.01f, -578.34f, 397.177f);
                                break;
                        }
                    }
                    else if (!barleyAlive)
                    {
                        switch (urand(0, 1))
                        {
                            case 0: // Thunderbrew Festive Keg
                                me->GetMotionMaster()->MovePoint(8, -5159.53f, -629.52f, 397.213f);
                                break;
                            case 1: // Gordok Festive Keg
                                me->GetMotionMaster()->MovePoint(9, -5148.01f, -578.34f, 397.177f);
                                break;
                        }
                    }
                    else if (!gordokAlive)
                    {
                        switch (urand(0, 1))
                        {                            
                            case 0: // Barleybrew Festive Keg
                                me->GetMotionMaster()->MovePoint(7, -5183.67f, -599.58f, 397.177f);
                                break;
                            case 1: // Thunderbrew Festive Keg
                                me->GetMotionMaster()->MovePoint(8, -5159.53f, -629.52f, 397.213f);
                                break;
                        }
                    }
                    else if (!thunderAlive)
                    {
                        switch (urand(0, 1))
                        {
                            case 0: // Barleybrew Festive Keg
                                me->GetMotionMaster()->MovePoint(7, -5183.67f, -599.58f, 397.177f);
                                break;
                            case 1: // Gordok Festive Keg
                                me->GetMotionMaster()->MovePoint(9, -5148.01f, -578.34f, 397.177f);
                                break;
                        }
                    }
                }
                atKeg = false;
            }
        }

        void MovementInform(uint32 Type, uint32 PointId)
        {
            if (Type != POINT_MOTION_TYPE)
                return;

            // Arrived at the retreat spot, we should despawn
            if (PointId == 1 || PointId == 2)
                me->ForcedDespawn(1000);

            // Arrived at the new keg - the spell has conditions in database
            if (PointId == 4 || PointId == 5 || PointId == 6 || PointId == 7 || PointId == 8 || PointId == 9)
            {
                DoCast(SPELL_ATTACK_KEG);
                me->SetByteFlag(UNIT_FIELD_BYTES_1, 1, 0x01); // Sit down
                atKeg = true;
            }
        }

        void UpdateAI(const uint32 diff)
        {
            if (!IsHolidayActive(HOLIDAY_BREWFEST))
                return;

            // If all kegs are dead we should retreat because we have won
            if ((!gordokAlive && !thunderAlive && !barleyAlive) || (!gordokAlive && !drohnAlive && !tchaliAlive))
            {
                DoCast(me, SPELL_RETREAT);

                // We are doing this because we'll have to reset our scripts when we won
                if (Creature* herald = me->FindNearestCreature(NPC_DARK_IRON_HERALD, 100.0f))
                    herald->AI()->SetData(20, 20);

                // Despawn all summon bunnies so they will stop summoning guzzlers
                if (Creature* spawnbunny = me->FindNearestCreature(NPC_DARK_IRON_SPAWN_BUNNY, 100.0f))
                    spawnbunny->ForcedDespawn();
            }

            if (TalkTimer <= diff)
            {
                me->AI()->Talk(SAY_RANDOM);
                TalkTimer = (urand(44000, 120000));
            } else TalkTimer -= diff;

            // Only happens if we're at keg
            if (atKeg)
            {
                if (AttackKegTimer <= diff)
                {
                    DoCast(SPELL_ATTACK_KEG);
                    AttackKegTimer = 5000;
                } else AttackKegTimer -= diff;
            }
        }
    };
};