fix(Scripts/Karazhan): Barnes should respawn on wipe. (#13953)

* fix(Scripts/Karazhan): Barnes should respawn on wipe.

Fixes #4437

* Update.

src/server/scripts/EasternKingdoms/Karazhan/bosses_opera.cpp

@@ -709,6 +709,13 @@ public:
             DoZoneInCombat();
         }
 
+        void EnterEvadeMode(EvadeReason reason) override
+        {
+            ScriptedAI::EnterEvadeMode(reason);
+
+            instance->SetBossState(DATA_OPERA_PERFORMANCE, FAIL);
+        }
+
         void JustDied(Unit* /*killer*/) override
         {
             Talk(SAY_CRONE_DEATH);
@@ -891,6 +898,13 @@ public:
             me->DespawnOrUnsummon();
         }
 
+        void EnterEvadeMode(EvadeReason reason) override
+        {
+            ScriptedAI::EnterEvadeMode(reason);
+
+            instance->SetBossState(DATA_OPERA_PERFORMANCE, FAIL);
+        }
+
         void JustDied(Unit* /*killer*/) override
         {
             DoPlaySoundToSet(me, SOUND_WOLF_DEATH);
@@ -1138,6 +1152,13 @@ public:
 
         void DamageTaken(Unit*, uint32& damage, DamageEffectType, SpellSchoolMask) override;
 
+        void EnterEvadeMode(EvadeReason reason) override
+        {
+            ScriptedAI::EnterEvadeMode(reason);
+
+            instance->SetBossState(DATA_OPERA_PERFORMANCE, FAIL);
+        }
+
         void JustDied(Unit*) override
         {
             Talk(SAY_JULIANNE_DEATH02);
@@ -1287,6 +1308,13 @@ public:
             ScriptedAI::MoveInLineOfSight(who);
         }
 
+        void EnterEvadeMode(EvadeReason reason) override
+        {
+            ScriptedAI::EnterEvadeMode(reason);
+
+            instance->SetBossState(DATA_OPERA_PERFORMANCE, FAIL);
+        }
+
         void JustDied(Unit* /*killer*/) override
         {
             Talk(SAY_ROMULO_DEATH);

src/server/scripts/EasternKingdoms/Karazhan/instance_karazhan.cpp

@@ -73,7 +73,18 @@ public:
                 case NPC_RELAY:
                     m_uiRelayGUID = creature->GetGUID();
                     break;
+                case NPC_BARNES:
+                    _barnesGUID = creature->GetGUID();
+                    if (GetBossState(DATA_OPERA_PERFORMANCE) != DONE && !creature->IsAlive())
+                    {
+                        creature->Respawn(true);
+                    }
+                    break;
+                default:
+                    break;
             }
+
+            InstanceScript::OnCreatureCreate(creature);
         }
 
         void OnUnitDeath(Unit* unit) override
@@ -162,6 +173,13 @@ public:
                             sideEntrance->RemoveGameObjectFlag(GO_FLAG_LOCKED);
                         instance->UpdateEncounterState(ENCOUNTER_CREDIT_KILL_CREATURE, 16812, nullptr);
                     }
+                    else if (state == FAIL)
+                    {
+                        HandleGameObject(m_uiStageDoorLeftGUID, false);
+                        HandleGameObject(m_uiStageDoorRightGUID, false);
+                        HandleGameObject(m_uiCurtainGUID, false);
+                        DoRespawnCreature(_barnesGUID, true);
+                    }
                     break;
                 case DATA_CHESS:
                     if (state == DONE)
@@ -336,6 +354,7 @@ public:
         ObjectGuid ImageGUID;
         ObjectGuid DustCoveredChest;
         ObjectGuid m_uiRelayGUID;
+        ObjectGuid _barnesGUID;
         GuidVector _operaDecorations[EVENT_RAJ];
     };
 };

src/server/scripts/EasternKingdoms/Karazhan/karazhan.h

@@ -90,7 +90,8 @@ enum KZMiscCreatures
     NPC_DREADBEAST = 16177,
     NPC_SHADOWBEAST = 16176,
     NPC_KILREK = 17229,
-    NPC_RELAY = 17645
+    NPC_RELAY = 17645,
+    NPC_BARNES = 16812
 };
 
 enum KZGameObjectIds