fix(Scripts/Ulduar): Add emote for opening of the Ancient Gate of the Keepers (#18949)

add ancient gate emote

data/sql/updates/pending_db_world/rev_1716655119634919952.sql

@@ -0,0 +1,4 @@
+--
+DELETE FROM `creature_text` WHERE (`CreatureID` = 22515) AND (`GroupID` = 19);
+INSERT INTO `creature_text` (`CreatureID`, `GroupID`, `ID`, `Text`, `Type`, `Language`, `Probability`, `Emote`, `Duration`, `Sound`, `BroadcastTextId`, `TextRange`, `comment`) VALUES
+(22515, 19, 0, 'The Ancient Gate of the Keepers unlocks!', 41, 0, 100, 0, 0, 0, 34401, 0, 'Ulduar - The Ancient Gate of the Keepers unlocks!');

src/server/scripts/Northrend/Ulduar/Ulduar/instance_ulduar.cpp

@@ -124,6 +124,9 @@ public:
         ObjectGuid m_brannBronzebeardBaseCamp;
         uint32 m_algalonTimer;
 
+        // Ancient Gate
+        const Position triggerAncientGatePosition = { 1883.65f, 269.272f, 418.406f };
+
         // Shared
         EventMap _events;
         bool m_mimironTramUsed;
@@ -667,9 +670,18 @@ public:
                 case TYPE_FREYA:
                     m_auiEncounter[type] = data;
                     if (GetData(TYPE_MIMIRON) == DONE && GetData(TYPE_FREYA) == DONE && GetData(TYPE_HODIR) == DONE && GetData(TYPE_THORIM) == DONE)
+                    {
+                        scheduler.Schedule(45s, [this](TaskContext /*context*/)
                         {
                             if (GameObject* go = instance->GetGameObject(m_keepersgateGUID))
+                            {
                                 go->RemoveGameObjectFlag(GO_FLAG_LOCKED);
+                                if (Creature* trigger = instance->SummonCreature(NPC_ANCIENT_GATE_WORLD_TRIGGER, triggerAncientGatePosition, nullptr, 10*IN_MILLISECONDS))
+                                {
+                                    trigger->AI()->Talk(EMOTE_ANCIENT_GATE_UNLOCKED);
+                                }
+                            }
+                        });
                     }
                     if (type == TYPE_MIMIRON && data == IN_PROGRESS) // after reaching him without tram and starting the fight
                         m_mimironTramUsed = true;

src/server/scripts/Northrend/Ulduar/Ulduar/ulduar.h

@@ -290,6 +290,10 @@ enum UlduarMisc
     // Freya, Hodir, Mimiron, Thorim
     EVENT_KEEPER_TELEPORTED                 = 62941,
 
+    // Ancient Gate
+    NPC_ANCIENT_GATE_WORLD_TRIGGER          = 22515,
+    EMOTE_ANCIENT_GATE_UNLOCKED             = 19,
+
     // Yogg-Saron
     ACTION_SARA_UPDATE_SUMMON_KEEPERS       = 4,
     KEEPER_FREYA                            = 0,