Core/Misc: Define some methods const

24 files changed, 84 insertions, 72 deletions

diff --git a/src/server/scripts/EasternKingdoms/BlackrockDepths/instance_blackrock_depths.cpp b/src/server/scripts/EasternKingdoms/BlackrockDepths/instance_blackrock_depths.cpp
index 0d02e4495a5..2c2ae3a79c5 100644
--- a/src/server/scripts/EasternKingdoms/BlackrockDepths/instance_blackrock_depths.cpp
+++ b/src/server/scripts/EasternKingdoms/BlackrockDepths/instance_blackrock_depths.cpp
@@ -273,7 +273,7 @@ public:
             }
         }
 
-        uint32 GetData(uint32 type)
+        uint32 GetData(uint32 type) const
         {
             switch (type)
             {
@@ -298,7 +298,7 @@ public:
             return 0;
         }
 
-        uint64 GetData64(uint32 data)
+        uint64 GetData64(uint32 data) const
         {
             switch (data)
             {
diff --git a/src/server/scripts/EasternKingdoms/BlackrockSpire/instance_blackrock_spire.cpp b/src/server/scripts/EasternKingdoms/BlackrockSpire/instance_blackrock_spire.cpp
index fdb73fe1196..124743174b6 100644
--- a/src/server/scripts/EasternKingdoms/BlackrockSpire/instance_blackrock_spire.cpp
+++ b/src/server/scripts/EasternKingdoms/BlackrockSpire/instance_blackrock_spire.cpp
@@ -222,7 +222,7 @@ public:
             }
         }
 
-        uint64 GetData64(uint32 type)
+        uint64 GetData64(uint32 type) const
         {
             switch (type)
             {
diff --git a/src/server/scripts/EasternKingdoms/Deadmines/instance_deadmines.cpp b/src/server/scripts/EasternKingdoms/Deadmines/instance_deadmines.cpp
index e97215a696d..8ee4ab0f594 100644
--- a/src/server/scripts/EasternKingdoms/Deadmines/instance_deadmines.cpp
+++ b/src/server/scripts/EasternKingdoms/Deadmines/instance_deadmines.cpp
@@ -214,7 +214,7 @@ class instance_deadmines : public InstanceMapScript
                 }
             }
 
-            uint32 GetData(uint32 type)
+            uint32 GetData(uint32 type) const
             {
                 switch (type)
                 {
@@ -225,7 +225,7 @@ class instance_deadmines : public InstanceMapScript
                 return 0;
             }
 
-            uint64 GetData64(uint32 data)
+            uint64 GetData64(uint32 data) const
             {
                 switch (data)
                 {
diff --git a/src/server/scripts/EasternKingdoms/Gnomeregan/instance_gnomeregan.cpp b/src/server/scripts/EasternKingdoms/Gnomeregan/instance_gnomeregan.cpp
index 2e520351150..8e126fae588 100644
--- a/src/server/scripts/EasternKingdoms/Gnomeregan/instance_gnomeregan.cpp
+++ b/src/server/scripts/EasternKingdoms/Gnomeregan/instance_gnomeregan.cpp
@@ -114,7 +114,7 @@ public:
             }
         }
 
-        uint32 GetData(uint32 uiType)
+        uint32 GetData(uint32 uiType) const
         {
             switch (uiType)
             {
@@ -123,7 +123,7 @@ public:
             return 0;
         }
 
-        uint64 GetData64(uint32 uiType)
+        uint64 GetData64(uint32 uiType) const
         {
             switch (uiType)
             {
diff --git a/src/server/scripts/EasternKingdoms/Karazhan/instance_karazhan.cpp b/src/server/scripts/EasternKingdoms/Karazhan/instance_karazhan.cpp
index 2ecd98cbc4c..2937d0ab700 100644
--- a/src/server/scripts/EasternKingdoms/Karazhan/instance_karazhan.cpp
+++ b/src/server/scripts/EasternKingdoms/Karazhan/instance_karazhan.cpp
@@ -241,7 +241,7 @@ public:
             return strSaveData;
         }
 
-        uint32 GetData(uint32 uiData)
+        uint32 GetData(uint32 uiData) const
         {
             switch (uiData)
             {
@@ -264,7 +264,7 @@ public:
             return 0;
         }
 
-        uint64 GetData64(uint32 uiData)
+        uint64 GetData64(uint32 uiData) const
         {
             switch (uiData)
             {
diff --git a/src/server/scripts/EasternKingdoms/MagistersTerrace/boss_selin_fireheart.cpp b/src/server/scripts/EasternKingdoms/MagistersTerrace/boss_selin_fireheart.cpp
index 74d1b5b9f1b..7b79c18239e 100644
--- a/src/server/scripts/EasternKingdoms/MagistersTerrace/boss_selin_fireheart.cpp
+++ b/src/server/scripts/EasternKingdoms/MagistersTerrace/boss_selin_fireheart.cpp
@@ -75,6 +75,7 @@ public:
                 uint32 size = instance->GetData(DATA_FEL_CRYSTAL_SIZE);
                 for (uint8 i = 0; i < size; ++i)
                 {
+                    instance->SetData64(DATA_FEL_CRYSTAL, i);
                     uint64 guid = instance->GetData64(DATA_FEL_CRYSTAL);
                     sLog->outDebug(LOG_FILTER_TSCR, "Selin: Adding Fel Crystal " UI64FMTD " to list", guid);
                     Crystals.push_back(guid);
diff --git a/src/server/scripts/EasternKingdoms/MagistersTerrace/instance_magisters_terrace.cpp b/src/server/scripts/EasternKingdoms/MagistersTerrace/instance_magisters_terrace.cpp
index da15f9020da..c8bf50c0bcc 100644
--- a/src/server/scripts/EasternKingdoms/MagistersTerrace/instance_magisters_terrace.cpp
+++ b/src/server/scripts/EasternKingdoms/MagistersTerrace/instance_magisters_terrace.cpp
@@ -72,8 +72,7 @@ public:
         uint32 Encounter[MAX_ENCOUNTER];
         uint32 DelrissaDeathCount;
 
-        std::list<uint64> FelCrystals;
-        std::list<uint64>::const_iterator CrystalItr;
+        std::vector<uint64> FelCrystals;
 
         uint64 SelinGUID;
         uint64 DelrissaGUID;
@@ -85,8 +84,7 @@ public:
         uint64 KaelStatue[2];
         uint64 EscapeOrbGUID;
         uint32 StatuesState;
-
-        bool InitializedItr;
+        uint8 felCristalIndex;
 
         void Initialize()
         {
@@ -107,8 +105,7 @@ public:
             KaelStatue[1] = 0;
             EscapeOrbGUID = 0;
             StatuesState = 0;
-
-            InitializedItr = false;
+            felCristalIndex = 0;
         }
 
         bool IsEncounterInProgress() const
@@ -119,7 +116,7 @@ public:
             return false;
         }
 
-        uint32 GetData(uint32 identifier)
+        uint32 GetData(uint32 identifier) const
         {
             switch (identifier)
             {
@@ -276,7 +273,7 @@ public:
             OUT_LOAD_INST_DATA_COMPLETE;
         }
             
-        uint64 GetData64(uint32 identifier)
+        uint64 GetData64(uint32 identifier) const
         {
             switch (identifier)
             {
@@ -297,26 +294,22 @@ public:
                 case DATA_ESCAPE_ORB:
                     return EscapeOrbGUID;
                 case DATA_FEL_CRYSTAL:
-                {
-                    if (FelCrystals.empty())
+                    if (FelCrystals.size() < felCristalIndex)
                     {
                         sLog->outError(LOG_FILTER_TSCR, "Magisters Terrace: No Fel Crystals loaded in Inst Data");
                         return 0;
                     }
 
-                    if (!InitializedItr)
-                    {
-                        CrystalItr = FelCrystals.begin();
-                        InitializedItr = true;
-                    }
-
-                    uint64 guid = *CrystalItr;
-                    ++CrystalItr;
-                    return guid;
-                }
+                    return FelCrystals.at(felCristalIndex);
             }
             return 0;
         }
+
+        void SetData64(uint32 identifier, uint64 value)
+        {
+            if (identifier == DATA_FEL_CRYSTAL)
+                felCristalIndex = value;
+        }
     };
 };
 
diff --git a/src/server/scripts/EasternKingdoms/MoltenCore/instance_molten_core.cpp b/src/server/scripts/EasternKingdoms/MoltenCore/instance_molten_core.cpp
index 33719f8f1f6..1a055b9bce0 100644
--- a/src/server/scripts/EasternKingdoms/MoltenCore/instance_molten_core.cpp
+++ b/src/server/scripts/EasternKingdoms/MoltenCore/instance_molten_core.cpp
@@ -117,7 +117,7 @@ class instance_molten_core : public InstanceMapScript
                 }
             }
 
-            uint32 GetData(uint32 type)
+            uint32 GetData(uint32 type) const
             {
                 switch (type)
                 {
@@ -128,7 +128,7 @@ class instance_molten_core : public InstanceMapScript
                 return 0;
             }
 
-            uint64 GetData64(uint32 type)
+            uint64 GetData64(uint32 type) const
             {
                 switch (type)
                 {
diff --git a/src/server/scripts/EasternKingdoms/ScarletEnclave/chapter1.cpp b/src/server/scripts/EasternKingdoms/ScarletEnclave/chapter1.cpp
index a65edcd63bc..eb695e984cb 100644
--- a/src/server/scripts/EasternKingdoms/ScarletEnclave/chapter1.cpp
+++ b/src/server/scripts/EasternKingdoms/ScarletEnclave/chapter1.cpp
@@ -308,7 +308,7 @@ public:
                 prisonerGUID = guid;
         }
 
-        uint64 GetGUID(int32 /*id*/)
+        uint64 GetGUID(int32 /*id*/) const
         {
             return prisonerGUID;
         }
diff --git a/src/server/scripts/EasternKingdoms/ScarletMonastery/instance_scarlet_monastery.cpp b/src/server/scripts/EasternKingdoms/ScarletMonastery/instance_scarlet_monastery.cpp
index 3d3d9ae52ae..e65ab21b8cf 100644
--- a/src/server/scripts/EasternKingdoms/ScarletMonastery/instance_scarlet_monastery.cpp
+++ b/src/server/scripts/EasternKingdoms/ScarletMonastery/instance_scarlet_monastery.cpp
@@ -132,7 +132,7 @@ public:
             }
         }
 
-        uint64 GetData64(uint32 type)
+        uint64 GetData64(uint32 type) const
         {
             switch (type)
             {
@@ -147,7 +147,7 @@ public:
             return 0;
         }
 
-        uint32 GetData(uint32 type)
+        uint32 GetData(uint32 type) const
         {
             if (type == TYPE_MOGRAINE_AND_WHITE_EVENT)
                 return encounter[0];
diff --git a/src/server/scripts/EasternKingdoms/Scholomance/boss_doctor_theolen_krastinov.cpp b/src/server/scripts/EasternKingdoms/Scholomance/boss_doctor_theolen_krastinov.cpp
index 197ee9a5bfe..5151268b70d 100644
--- a/src/server/scripts/EasternKingdoms/Scholomance/boss_doctor_theolen_krastinov.cpp
+++ b/src/server/scripts/EasternKingdoms/Scholomance/boss_doctor_theolen_krastinov.cpp
@@ -67,7 +67,10 @@ public:
                 instance->SetData(DATA_DOCTORTHEOLENKRASTINOV_DEATH, 0);
 
                 if (instance->GetData(TYPE_GANDLING) == IN_PROGRESS)
+                {
+                    instance->SetData(TYPE_GANDLING, IN_PROGRESS);
                     me->SummonCreature(1853, 180.73f, -9.43856f, 75.507f, 1.61399f, TEMPSUMMON_DEAD_DESPAWN, 0);
+                }
             }
         }
 
diff --git a/src/server/scripts/EasternKingdoms/Scholomance/boss_illucia_barov.cpp b/src/server/scripts/EasternKingdoms/Scholomance/boss_illucia_barov.cpp
index b6b5cc0acbd..e1cffbaf90d 100644
--- a/src/server/scripts/EasternKingdoms/Scholomance/boss_illucia_barov.cpp
+++ b/src/server/scripts/EasternKingdoms/Scholomance/boss_illucia_barov.cpp
@@ -67,7 +67,10 @@ public:
                 instance->SetData(DATA_LADYILLUCIABAROV_DEATH, 0);
 
                 if (instance->GetData(TYPE_GANDLING) == IN_PROGRESS)
+                {
+                    instance->SetData(TYPE_GANDLING, IN_PROGRESS);
                     me->SummonCreature(1853, 180.73f, -9.43856f, 75.507f, 1.61399f, TEMPSUMMON_DEAD_DESPAWN, 0);
+                }
             }
         }
 
diff --git a/src/server/scripts/EasternKingdoms/Scholomance/boss_instructor_malicia.cpp b/src/server/scripts/EasternKingdoms/Scholomance/boss_instructor_malicia.cpp
index 406b1a6b10d..1768584cb25 100644
--- a/src/server/scripts/EasternKingdoms/Scholomance/boss_instructor_malicia.cpp
+++ b/src/server/scripts/EasternKingdoms/Scholomance/boss_instructor_malicia.cpp
@@ -74,7 +74,10 @@ public:
                 instance->SetData(DATA_INSTRUCTORMALICIA_DEATH, 0);
 
                 if (instance->GetData(TYPE_GANDLING) == IN_PROGRESS)
+                {
+                    instance->SetData(TYPE_GANDLING, IN_PROGRESS);
                     me->SummonCreature(1853, 180.73f, -9.43856f, 75.507f, 1.61399f, TEMPSUMMON_DEAD_DESPAWN, 0);
+                }
             }
         }
 
diff --git a/src/server/scripts/EasternKingdoms/Scholomance/boss_lord_alexei_barov.cpp b/src/server/scripts/EasternKingdoms/Scholomance/boss_lord_alexei_barov.cpp
index 438c3c88bb4..3035688343c 100644
--- a/src/server/scripts/EasternKingdoms/Scholomance/boss_lord_alexei_barov.cpp
+++ b/src/server/scripts/EasternKingdoms/Scholomance/boss_lord_alexei_barov.cpp
@@ -63,7 +63,10 @@ public:
                 instance->SetData(DATA_LORDALEXEIBAROV_DEATH, 0);
 
                 if (instance->GetData(TYPE_GANDLING) == IN_PROGRESS)
+                {
+                    instance->SetData(TYPE_GANDLING, IN_PROGRESS);
                     me->SummonCreature(1853, 180.73f, -9.43856f, 75.507f, 1.61399f, TEMPSUMMON_DEAD_DESPAWN, 0);
+                }
             }
         }
 
diff --git a/src/server/scripts/EasternKingdoms/Scholomance/boss_lorekeeper_polkelt.cpp b/src/server/scripts/EasternKingdoms/Scholomance/boss_lorekeeper_polkelt.cpp
index 64bbbbe9514..dfab9dd37df 100644
--- a/src/server/scripts/EasternKingdoms/Scholomance/boss_lorekeeper_polkelt.cpp
+++ b/src/server/scripts/EasternKingdoms/Scholomance/boss_lorekeeper_polkelt.cpp
@@ -67,7 +67,10 @@ public:
                 instance->SetData(DATA_LOREKEEPERPOLKELT_DEATH, 0);
 
                 if (instance->GetData(TYPE_GANDLING) == IN_PROGRESS)
+                {
+                    instance->SetData(TYPE_GANDLING, IN_PROGRESS);
                     me->SummonCreature(1853, 180.73f, -9.43856f, 75.507f, 1.61399f, TEMPSUMMON_DEAD_DESPAWN, 0);
+                }
             }
         }
 
diff --git a/src/server/scripts/EasternKingdoms/Scholomance/boss_the_ravenian.cpp b/src/server/scripts/EasternKingdoms/Scholomance/boss_the_ravenian.cpp
index 381a039d609..b3d42d4676a 100644
--- a/src/server/scripts/EasternKingdoms/Scholomance/boss_the_ravenian.cpp
+++ b/src/server/scripts/EasternKingdoms/Scholomance/boss_the_ravenian.cpp
@@ -69,7 +69,10 @@ public:
                 instance->SetData(DATA_THERAVENIAN_DEATH, 0);
 
                 if (instance->GetData(TYPE_GANDLING) == IN_PROGRESS)
+                {
+                    instance->SetData(TYPE_GANDLING, IN_PROGRESS);
                     me->SummonCreature(1853, 180.73f, -9.43856f, 75.507f, 1.61399f, TEMPSUMMON_DEAD_DESPAWN, 0);
+                }
             }
         }
 
diff --git a/src/server/scripts/EasternKingdoms/Scholomance/instance_scholomance.cpp b/src/server/scripts/EasternKingdoms/Scholomance/instance_scholomance.cpp
index c3b3724ec3d..f8a0c0010d2 100644
--- a/src/server/scripts/EasternKingdoms/Scholomance/instance_scholomance.cpp
+++ b/src/server/scripts/EasternKingdoms/Scholomance/instance_scholomance.cpp
@@ -128,21 +128,14 @@ public:
             }
         }
 
-        uint32 GetData(uint32 type)
+        uint32 GetData(uint32 type) const
         {
-            if (type == TYPE_GANDLING)
-            {
-                if (IsBossDied[0] && IsBossDied[1] && IsBossDied[2] && IsBossDied[3] && IsBossDied[4] && IsBossDied[5])
-                {
-                    m_auiEncounter[0] = IN_PROGRESS;
-                    return IN_PROGRESS;
-                }
-            }
-
-            return 0;
+            return (type == TYPE_GANDLING &&
+                IsBossDied[0] && IsBossDied[1] && IsBossDied[2] &&
+                IsBossDied[3] && IsBossDied[4] && IsBossDied[5])
+                ? IN_PROGRESS : 0;
         }
     };
-
 };
 
 void AddSC_instance_scholomance()
diff --git a/src/server/scripts/EasternKingdoms/ShadowfangKeep/instance_shadowfang_keep.cpp b/src/server/scripts/EasternKingdoms/ShadowfangKeep/instance_shadowfang_keep.cpp
index f219875b057..509fcdd845e 100644
--- a/src/server/scripts/EasternKingdoms/ShadowfangKeep/instance_shadowfang_keep.cpp
+++ b/src/server/scripts/EasternKingdoms/ShadowfangKeep/instance_shadowfang_keep.cpp
@@ -192,7 +192,7 @@ public:
             }
         }
 
-        uint32 GetData(uint32 type)
+        uint32 GetData(uint32 type) const
         {
             switch (type)
             {
diff --git a/src/server/scripts/EasternKingdoms/Stratholme/instance_stratholme.cpp b/src/server/scripts/EasternKingdoms/Stratholme/instance_stratholme.cpp
index 17eedb87896..2e4ec7278fc 100644
--- a/src/server/scripts/EasternKingdoms/Stratholme/instance_stratholme.cpp
+++ b/src/server/scripts/EasternKingdoms/Stratholme/instance_stratholme.cpp
@@ -402,7 +402,7 @@ class instance_stratholme : public InstanceMapScript
                 OUT_LOAD_INST_DATA_COMPLETE;
             }
 
-            uint32 GetData(uint32 type)
+            uint32 GetData(uint32 type) const
             {
                   switch (type)
                   {
@@ -426,7 +426,7 @@ class instance_stratholme : public InstanceMapScript
                   return 0;
             }
 
-            uint64 GetData64(uint32 data)
+            uint64 GetData64(uint32 data) const
             {
                 switch (data)
                 {
diff --git a/src/server/scripts/EasternKingdoms/SunkenTemple/instance_sunken_temple.cpp b/src/server/scripts/EasternKingdoms/SunkenTemple/instance_sunken_temple.cpp
index e0987961f7e..624e5460213 100644
--- a/src/server/scripts/EasternKingdoms/SunkenTemple/instance_sunken_temple.cpp
+++ b/src/server/scripts/EasternKingdoms/SunkenTemple/instance_sunken_temple.cpp
@@ -193,7 +193,7 @@ public:
                 State = data;
          }
 
-         uint32 GetData(uint32 type)
+         uint32 GetData(uint32 type) const
          {
             if (type == EVENT_STATE)
                 return State;
diff --git a/src/server/scripts/EasternKingdoms/SunwellPlateau/instance_sunwell_plateau.cpp b/src/server/scripts/EasternKingdoms/SunwellPlateau/instance_sunwell_plateau.cpp
index bf31557d8a8..c4bb41036bc 100644
--- a/src/server/scripts/EasternKingdoms/SunwellPlateau/instance_sunwell_plateau.cpp
+++ b/src/server/scripts/EasternKingdoms/SunwellPlateau/instance_sunwell_plateau.cpp
@@ -122,7 +122,7 @@ public:
             return false;
         }
 
-        Player* GetPlayerInMap()
+        Player const * GetPlayerInMap() const
         {
             Map::PlayerList const& players = instance->GetPlayers();
 
@@ -182,7 +182,7 @@ public:
             }
         }
 
-        uint32 GetData(uint32 id)
+        uint32 GetData(uint32 id) const
         {
             switch (id)
             {
@@ -196,7 +196,7 @@ public:
             return 0;
         }
 
-        uint64 GetData64(uint32 id)
+        uint64 GetData64(uint32 id) const
         {
             switch (id)
             {
@@ -215,8 +215,8 @@ public:
                 case DATA_ANVEENA:              return Anveena;
                 case DATA_KALECGOS_KJ:          return KalecgosKJ;
                 case DATA_PLAYER_GUID:
-                    Player* Target = GetPlayerInMap();
-                    return Target->GetGUID();
+                    Player const* target = GetPlayerInMap();
+                    return target ? target->GetGUID() : 0;
             }
             return 0;
         }
diff --git a/src/server/scripts/EasternKingdoms/Uldaman/instance_uldaman.cpp b/src/server/scripts/EasternKingdoms/Uldaman/instance_uldaman.cpp
index ee82da668f8..eeb1df7b693 100644
--- a/src/server/scripts/EasternKingdoms/Uldaman/instance_uldaman.cpp
+++ b/src/server/scripts/EasternKingdoms/Uldaman/instance_uldaman.cpp
@@ -466,20 +466,27 @@ class instance_uldaman : public InstanceMapScript
                 }
             }
 
-            uint64 GetData64(uint32 identifier)
+            uint64 GetData64(uint32 identifier) const
             {
-                if (identifier == 0) return uiWhoWokeuiArchaedasGUID;
-                if (identifier == 1) return vVaultWalker[0];    // VaultWalker1
-                if (identifier == 2) return vVaultWalker[1];    // VaultWalker2
-                if (identifier == 3) return vVaultWalker[2];    // VaultWalker3
-                if (identifier == 4) return vVaultWalker[3];    // VaultWalker4
-
-                if (identifier == 5) return vEarthenGuardian[0];
-                if (identifier == 6) return vEarthenGuardian[1];
-                if (identifier == 7) return vEarthenGuardian[2];
-                if (identifier == 8) return vEarthenGuardian[3];
-                if (identifier == 9) return vEarthenGuardian[4];
-                if (identifier == 10) return vEarthenGuardian[5];
+                switch (identifier)
+                {
+                    case 0:
+                        return uiWhoWokeuiArchaedasGUID;
+                    case 1:
+                    case 2:
+                    case 3:
+                    case 4:
+                        return vVaultWalker.at(identifier);
+                    case 5:
+                    case 6:
+                    case 7:
+                    case 8:
+                    case 9:
+                    case 10:
+                        return vEarthenGuardian.at(identifier - 5);
+                    default:
+                        break;
+                }
 
                 return 0;
             } // end GetData64
diff --git a/src/server/scripts/EasternKingdoms/ZulAman/instance_zulaman.cpp b/src/server/scripts/EasternKingdoms/ZulAman/instance_zulaman.cpp
index b113c7c68b9..c692e18e6ca 100644
--- a/src/server/scripts/EasternKingdoms/ZulAman/instance_zulaman.cpp
+++ b/src/server/scripts/EasternKingdoms/ZulAman/instance_zulaman.cpp
@@ -283,7 +283,7 @@ class instance_zulaman : public InstanceMapScript
                 }
             }
 
-            uint32 GetData(uint32 type)
+            uint32 GetData(uint32 type) const
             {
                 switch (type)
                 {
diff --git a/src/server/scripts/EasternKingdoms/ZulGurub/instance_zulgurub.cpp b/src/server/scripts/EasternKingdoms/ZulGurub/instance_zulgurub.cpp
index 104d479383b..8d17a18bb1b 100644
--- a/src/server/scripts/EasternKingdoms/ZulGurub/instance_zulgurub.cpp
+++ b/src/server/scripts/EasternKingdoms/ZulGurub/instance_zulgurub.cpp
@@ -113,7 +113,7 @@ class instance_zulgurub : public InstanceMapScript
                 }
             }
 
-            uint32 GetData(uint32 uiType)
+            uint32 GetData(uint32 uiType) const
             {
                 switch (uiType)
                 {
@@ -137,7 +137,7 @@ class instance_zulgurub : public InstanceMapScript
                 return 0;
             }
 
-            uint64 GetData64(uint32 uiData)
+            uint64 GetData64(uint32 uiData) const
             {
                 switch (uiData)
                 {
@@ -163,4 +163,4 @@ class instance_zulgurub : public InstanceMapScript
 void AddSC_instance_zulgurub()
 {
     new instance_zulgurub();
-}
\ No newline at end of file
+}