Core/Misc: Replace NULL with nullptr

30 files changed, 50 insertions, 50 deletions

diff --git a/src/server/scripts/EasternKingdoms/BaradinHold/boss_occuthar.cpp b/src/server/scripts/EasternKingdoms/BaradinHold/boss_occuthar.cpp
index c96a1ba4367..c3c61a3490c 100644
--- a/src/server/scripts/EasternKingdoms/BaradinHold/boss_occuthar.cpp
+++ b/src/server/scripts/EasternKingdoms/BaradinHold/boss_occuthar.cpp
@@ -364,7 +364,7 @@ class spell_occuthar_occuthars_destruction : public SpellScriptLoader
                 if (Unit* caster = GetCaster())
                 {
                     if (IsExpired())
-                        caster->CastSpell((Unit*)NULL, SPELL_OCCUTHARS_DESTUCTION, true, NULL, aurEff);
+                        caster->CastSpell(nullptr, SPELL_OCCUTHARS_DESTUCTION, true, nullptr, aurEff);
 
                     caster->ToCreature()->DespawnOrUnsummon(500);
                 }
diff --git a/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockDepths/boss_coren_direbrew.cpp b/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockDepths/boss_coren_direbrew.cpp
index abfbf5797a6..156e690be85 100644
--- a/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockDepths/boss_coren_direbrew.cpp
+++ b/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockDepths/boss_coren_direbrew.cpp
@@ -436,7 +436,7 @@ public:
                 .Schedule(Seconds(1), [this](TaskContext /*context*/)
                 {
                     me->UseDoorOrButton(8);
-                    me->CastSpell((Unit*)nullptr, SPELL_MOLE_MACHINE_EMERGE, true);
+                    me->CastSpell(nullptr, SPELL_MOLE_MACHINE_EMERGE, true);
                 })
                 .Schedule(Seconds(4), [this](TaskContext /*context*/)
                 {
@@ -667,7 +667,7 @@ class spell_barreled_control_aura : public SpellScriptLoader
             void PeriodicTick(AuraEffect const* /*aurEff*/)
             {
                 PreventDefaultAction();
-                GetTarget()->CastSpell((Unit*)nullptr, SPELL_BARRELED, true);
+                GetTarget()->CastSpell(nullptr, SPELL_BARRELED, true);
             }
 
             void Register() override
diff --git a/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockDepths/instance_blackrock_depths.cpp b/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockDepths/instance_blackrock_depths.cpp
index b4413fedbf4..15b5edd3027 100644
--- a/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockDepths/instance_blackrock_depths.cpp
+++ b/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockDepths/instance_blackrock_depths.cpp
@@ -378,7 +378,7 @@ public:
                         boss->CombatStop(true);
                         boss->LoadCreaturesAddon();
                         boss->GetMotionMaster()->MoveTargetedHome();
-                        boss->SetLootRecipient(NULL);
+                        boss->SetLootRecipient(nullptr);
                     }
                     boss->SetFaction(FACTION_FRIENDLY);
                 }
diff --git a/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockSpire/instance_blackrock_spire.cpp b/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockSpire/instance_blackrock_spire.cpp
index ce43b33fba3..c5403ee37ad 100644
--- a/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockSpire/instance_blackrock_spire.cpp
+++ b/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockSpire/instance_blackrock_spire.cpp
@@ -418,8 +418,8 @@ public:
 
         void Dragonspireroomcheck()
         {
-            Creature* mob = NULL;
-            GameObject* rune = NULL;
+            Creature* mob = nullptr;
+            GameObject* rune = nullptr;
 
             for (uint8 i = 0; i < 7; ++i)
             {
diff --git a/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackwingLair/boss_nefarian.cpp b/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackwingLair/boss_nefarian.cpp
index f4757e21ea8..4a199b1cac4 100644
--- a/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackwingLair/boss_nefarian.cpp
+++ b/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackwingLair/boss_nefarian.cpp
@@ -353,7 +353,7 @@ public:
                                         nefarian->setActive(true);
                                         nefarian->SetCanFly(true);
                                         nefarian->SetDisableGravity(true);
-                                        nefarian->CastSpell((Unit*)NULL, SPELL_SHADOWFLAME_INITIAL);
+                                        nefarian->CastSpell(nullptr, SPELL_SHADOWFLAME_INITIAL);
                                         nefarian->GetMotionMaster()->MovePoint(1, NefarianLoc[1]);
                                     }
                                     events.CancelEvent(EVENT_MIND_CONTROL);
diff --git a/src/server/scripts/EasternKingdoms/BlackrockMountain/MoltenCore/boss_baron_geddon.cpp b/src/server/scripts/EasternKingdoms/BlackrockMountain/MoltenCore/boss_baron_geddon.cpp
index da82930c678..876f32cb89a 100644
--- a/src/server/scripts/EasternKingdoms/BlackrockMountain/MoltenCore/boss_baron_geddon.cpp
+++ b/src/server/scripts/EasternKingdoms/BlackrockMountain/MoltenCore/boss_baron_geddon.cpp
@@ -137,7 +137,7 @@ class spell_baron_geddon_inferno : public SpellScriptLoader
             {
                 PreventDefaultAction();
                 int32 damageForTick[8] = { 500, 500, 1000, 1000, 2000, 2000, 3000, 5000 };
-                GetTarget()->CastCustomSpell(SPELL_INFERNO_DMG, SPELLVALUE_BASE_POINT0, damageForTick[aurEff->GetTickNumber() - 1], (Unit*)nullptr, TRIGGERED_FULL_MASK, nullptr, aurEff);
+                GetTarget()->CastCustomSpell(SPELL_INFERNO_DMG, SPELLVALUE_BASE_POINT0, damageForTick[aurEff->GetTickNumber() - 1], nullptr, TRIGGERED_FULL_MASK, nullptr, aurEff);
             }
 
             void Register() override
diff --git a/src/server/scripts/EasternKingdoms/Deadmines/instance_deadmines.cpp b/src/server/scripts/EasternKingdoms/Deadmines/instance_deadmines.cpp
index 2e1a2f6daf0..1804cf17a52 100644
--- a/src/server/scripts/EasternKingdoms/Deadmines/instance_deadmines.cpp
+++ b/src/server/scripts/EasternKingdoms/Deadmines/instance_deadmines.cpp
@@ -93,7 +93,7 @@ class instance_deadmines : public InstanceMapScript
                         CannonBlast_Timer = DATA_CANNON_BLAST_TIMER;
                         // it's a hack - Mr. Smite should do that but his too far away
                         //pIronCladDoor->SetName("Mr. Smite");
-                        //pIronCladDoor->MonsterYell(SAY_MR_SMITE_ALARM1, LANG_UNIVERSAL, NULL);
+                        //pIronCladDoor->MonsterYell(SAY_MR_SMITE_ALARM1, LANG_UNIVERSAL, nullptr);
                         pIronCladDoor->PlayDirectSound(SOUND_MR_SMITE_ALARM1);
                         State = CANNON_BLAST_INITIATED;
                         break;
@@ -105,7 +105,7 @@ class instance_deadmines : public InstanceMapScript
                             ShootCannon();
                             BlastOutDoor();
                             LeverStucked();
-                            //pIronCladDoor->MonsterYell(SAY_MR_SMITE_ALARM2, LANG_UNIVERSAL, NULL);
+                            //pIronCladDoor->MonsterYell(SAY_MR_SMITE_ALARM2, LANG_UNIVERSAL, nullptr);
                             pIronCladDoor->PlayDirectSound(SOUND_MR_SMITE_ALARM2);
                             State = PIRATES_ATTACK;
                         } else CannonBlast_Timer -= diff;
diff --git a/src/server/scripts/EasternKingdoms/Karazhan/boss_prince_malchezaar.cpp b/src/server/scripts/EasternKingdoms/Karazhan/boss_prince_malchezaar.cpp
index 2a86453f86a..bc3b08b1ad8 100644
--- a/src/server/scripts/EasternKingdoms/Karazhan/boss_prince_malchezaar.cpp
+++ b/src/server/scripts/EasternKingdoms/Karazhan/boss_prince_malchezaar.cpp
@@ -113,7 +113,7 @@ public:
     struct netherspite_infernalAI : public ScriptedAI
     {
         netherspite_infernalAI(Creature* creature) : ScriptedAI(creature),
-            HellfireTimer(0), CleanupTimer(0), point(NULL) { }
+            HellfireTimer(0), CleanupTimer(0), point(nullptr) { }
 
         uint32 HellfireTimer;
         uint32 CleanupTimer;
@@ -339,7 +339,7 @@ public:
                     enfeeble_targets[i] = target->GetGUID();
                     enfeeble_health[i] = target->GetHealth();
 
-                    target->CastSpell(target, SPELL_ENFEEBLE, true, 0, 0, me->GetGUID());
+                    target->CastSpell(target, SPELL_ENFEEBLE, true, nullptr, nullptr, me->GetGUID());
                     target->SetHealth(1);
                 }
         }
@@ -358,7 +358,7 @@ public:
 
         void SummonInfernal(const uint32 /*diff*/)
         {
-            InfernalPoint *point = NULL;
+            InfernalPoint *point = nullptr;
             Position pos;
             if ((me->GetMapId() != 532) || positions.empty())
                 pos = me->GetRandomNearPosition(60);
@@ -522,7 +522,7 @@ public:
             {
                 if (SWPainTimer <= diff)
                 {
-                    Unit* target = NULL;
+                    Unit* target = nullptr;
                     if (phase == 1)
                         target = me->GetVictim();        // the tank
                     else                                          // anyone but the tank
diff --git a/src/server/scripts/EasternKingdoms/Karazhan/boss_shade_of_aran.cpp b/src/server/scripts/EasternKingdoms/Karazhan/boss_shade_of_aran.cpp
index 6e8e4d204a2..86c733d2e3c 100644
--- a/src/server/scripts/EasternKingdoms/Karazhan/boss_shade_of_aran.cpp
+++ b/src/server/scripts/EasternKingdoms/Karazhan/boss_shade_of_aran.cpp
@@ -480,7 +480,7 @@ public:
                         Unit* unit = ObjectAccessor::GetUnit(*me, FlameWreathTarget[i]);
                         if (unit && !unit->IsWithinDist2d(FWTargPosX[i], FWTargPosY[i], 3))
                         {
-                            unit->CastSpell(unit, 20476, true, 0, 0, me->GetGUID());
+                            unit->CastSpell(unit, 20476, true, nullptr, nullptr, me->GetGUID());
                             unit->CastSpell(unit, 11027, true);
                             FlameWreathTarget[i].Clear();
                         }
diff --git a/src/server/scripts/EasternKingdoms/Karazhan/instance_karazhan.cpp b/src/server/scripts/EasternKingdoms/Karazhan/instance_karazhan.cpp
index 4dfa32edc58..ea5e73ab3ea 100644
--- a/src/server/scripts/EasternKingdoms/Karazhan/instance_karazhan.cpp
+++ b/src/server/scripts/EasternKingdoms/Karazhan/instance_karazhan.cpp
@@ -163,7 +163,7 @@ public:
                         HandleGameObject(StageDoorRightGUID, true);
                         if (GameObject* sideEntrance = instance->GetGameObject(SideEntranceDoor))
                             sideEntrance->RemoveFlag(GO_FLAG_LOCKED);
-                        UpdateEncounterStateForKilledCreature(16812, NULL);
+                        UpdateEncounterStateForKilledCreature(16812, nullptr);
                     }
                     break;
                 case DATA_CHESS:
diff --git a/src/server/scripts/EasternKingdoms/Karazhan/karazhan.cpp b/src/server/scripts/EasternKingdoms/Karazhan/karazhan.cpp
index 002010f70f1..44178f09b08 100644
--- a/src/server/scripts/EasternKingdoms/Karazhan/karazhan.cpp
+++ b/src/server/scripts/EasternKingdoms/Karazhan/karazhan.cpp
@@ -579,7 +579,7 @@ public:
             }
             case 15:
                 if (Creature* arca = ObjectAccessor::GetCreature(*me, ArcanagosGUID))
-                    arca->DealDamage(arca, arca->GetHealth(), NULL, DIRECT_DAMAGE, SPELL_SCHOOL_MASK_NORMAL, NULL, false);
+                    arca->DealDamage(arca, arca->GetHealth(), nullptr, DIRECT_DAMAGE, SPELL_SCHOOL_MASK_NORMAL, nullptr, false);
                 return 5000;
             default:
                 return 9999999;
diff --git a/src/server/scripts/EasternKingdoms/MagistersTerrace/boss_felblood_kaelthas.cpp b/src/server/scripts/EasternKingdoms/MagistersTerrace/boss_felblood_kaelthas.cpp
index a21c0e1ed78..292dc10e7f8 100644
--- a/src/server/scripts/EasternKingdoms/MagistersTerrace/boss_felblood_kaelthas.cpp
+++ b/src/server/scripts/EasternKingdoms/MagistersTerrace/boss_felblood_kaelthas.cpp
@@ -238,7 +238,7 @@ public:
                 Unit* unit = ObjectAccessor::GetUnit(*me, (*i)->getUnitGuid());
                 if (unit && (unit->GetTypeId() == TYPEID_PLAYER))
                     // Knockback into the air
-                    unit->CastSpell(unit, SPELL_GRAVITY_LAPSE_DOT, true, 0, 0, me->GetGUID());
+                    unit->CastSpell(unit, SPELL_GRAVITY_LAPSE_DOT, true, nullptr, nullptr, me->GetGUID());
             }
         }
 
@@ -252,7 +252,7 @@ public:
                 if (unit && (unit->GetTypeId() == TYPEID_PLAYER))
                 {
                     // Also needs an exception in spell system.
-                    unit->CastSpell(unit, SPELL_GRAVITY_LAPSE_FLY, true, 0, 0, me->GetGUID());
+                    unit->CastSpell(unit, SPELL_GRAVITY_LAPSE_FLY, true, nullptr, nullptr, me->GetGUID());
                     unit->SetCanFly(true);
                 }
             }
@@ -393,7 +393,7 @@ public:
 
                                 for (uint8 i = 0; i < 3; ++i)
                                 {
-                                    Unit* target = NULL;
+                                    Unit* target = nullptr;
                                     target = SelectTarget(SELECT_TARGET_RANDOM, 0);
 
                                     Creature* Orb = DoSpawnCreature(CREATURE_ARCANE_SPHERE, 5, 5, 0, 0, TEMPSUMMON_TIMED_OR_CORPSE_DESPAWN, 30000);
@@ -582,7 +582,7 @@ public:
             {
                 //spell Burn should possible do this, but it doesn't, so do this for now.
                 uint16 dmg = urand(1650, 2050);
-                me->DealDamage(me, dmg, 0, DOT, SPELL_SCHOOL_MASK_FIRE, NULL, false);
+                me->DealDamage(me, dmg, nullptr, DOT, SPELL_SCHOOL_MASK_FIRE, nullptr, false);
                 BurnTimer += 2000;
             } BurnTimer -= diff;
 
diff --git a/src/server/scripts/EasternKingdoms/MagistersTerrace/boss_priestess_delrissa.cpp b/src/server/scripts/EasternKingdoms/MagistersTerrace/boss_priestess_delrissa.cpp
index 1a30ef9dca1..0a9062e03f2 100644
--- a/src/server/scripts/EasternKingdoms/MagistersTerrace/boss_priestess_delrissa.cpp
+++ b/src/server/scripts/EasternKingdoms/MagistersTerrace/boss_priestess_delrissa.cpp
@@ -307,7 +307,7 @@ public:
 
             if (DispelTimer <= diff)
             {
-                Unit* target = NULL;
+                Unit* target = nullptr;
 
                 if (urand(0, 1))
                     target = SelectTarget(SELECT_TARGET_RANDOM, 0, 100, true);
diff --git a/src/server/scripts/EasternKingdoms/ScarletEnclave/chapter1.cpp b/src/server/scripts/EasternKingdoms/ScarletEnclave/chapter1.cpp
index 6bb69e55e92..a8759cd9372 100644
--- a/src/server/scripts/EasternKingdoms/ScarletEnclave/chapter1.cpp
+++ b/src/server/scripts/EasternKingdoms/ScarletEnclave/chapter1.cpp
@@ -194,7 +194,7 @@ public:
                         TC_LOG_ERROR("scripts", "npc_unworthy_initiateAI: unable to find anchor!");
 
                     float dist = 99.0f;
-                    GameObject* prison = NULL;
+                    GameObject* prison = nullptr;
 
                     for (uint8 i = 0; i < 12; ++i)
                     {
@@ -1068,7 +1068,7 @@ class npc_scarlet_miner_cart : public CreatureScript
                 if (apply)
                 {
                     _playerGUID = who->GetGUID();
-                    me->CastSpell((Unit*)NULL, SPELL_SUMMON_MINER, true);
+                    me->CastSpell(nullptr, SPELL_SUMMON_MINER, true);
                 }
                 else
                 {
diff --git a/src/server/scripts/EasternKingdoms/ScarletEnclave/chapter2.cpp b/src/server/scripts/EasternKingdoms/ScarletEnclave/chapter2.cpp
index 95d9b3bd9dd..1a24429aa38 100644
--- a/src/server/scripts/EasternKingdoms/ScarletEnclave/chapter2.cpp
+++ b/src/server/scripts/EasternKingdoms/ScarletEnclave/chapter2.cpp
@@ -93,7 +93,7 @@ public:
                         me->SetReactState(REACT_PASSIVE);
                         DoCastAOE(SPELL_THREAT_PULSE, true);
 
-                        sCreatureTextMgr->SendChat(me, SAY_PERSUADE_RAND, NULL, CHAT_MSG_ADDON, LANG_ADDON, TEXT_RANGE_NORMAL, 0, TEAM_OTHER, false, player);
+                        sCreatureTextMgr->SendChat(me, SAY_PERSUADE_RAND, nullptr, CHAT_MSG_ADDON, LANG_ADDON, TEXT_RANGE_NORMAL, 0, TEAM_OTHER, false, player);
                         Talk(SAY_CRUSADER);
                     }
                 }
@@ -136,7 +136,7 @@ public:
                             break;
 
                         case 5:
-                            sCreatureTextMgr->SendChat(me, SAY_PERSUADED5, NULL, CHAT_MSG_ADDON, LANG_ADDON, TEXT_RANGE_NORMAL, 0, TEAM_OTHER, false, player);
+                            sCreatureTextMgr->SendChat(me, SAY_PERSUADED5, nullptr, CHAT_MSG_ADDON, LANG_ADDON, TEXT_RANGE_NORMAL, 0, TEAM_OTHER, false, player);
                             speechTimer = 8000;
                             break;
 
diff --git a/src/server/scripts/EasternKingdoms/ScarletEnclave/chapter5.cpp b/src/server/scripts/EasternKingdoms/ScarletEnclave/chapter5.cpp
index 7c908b850b2..ed43d895d26 100644
--- a/src/server/scripts/EasternKingdoms/ScarletEnclave/chapter5.cpp
+++ b/src/server/scripts/EasternKingdoms/ScarletEnclave/chapter5.cpp
@@ -1494,7 +1494,7 @@ public:
 
         void SpawnNPC()
         {
-            Unit* temp = NULL;
+            Unit* temp = nullptr;
 
             // Death
             for (uint8 i = 0; i < ENCOUNTER_GHOUL_NUMBER; ++i)
diff --git a/src/server/scripts/EasternKingdoms/ScarletEnclave/zone_the_scarlet_enclave.cpp b/src/server/scripts/EasternKingdoms/ScarletEnclave/zone_the_scarlet_enclave.cpp
index e97f8a8454d..84abf8b6062 100644
--- a/src/server/scripts/EasternKingdoms/ScarletEnclave/zone_the_scarlet_enclave.cpp
+++ b/src/server/scripts/EasternKingdoms/ScarletEnclave/zone_the_scarlet_enclave.cpp
@@ -85,7 +85,7 @@ public:
         {
             if (FlyBackTimer <= diff)
             {
-                Player* player = NULL;
+                Player* player = nullptr;
                 if (me->IsSummon())
                     if (Unit* summoner = me->ToTempSummon()->GetSummoner())
                         player = summoner->ToPlayer();
diff --git a/src/server/scripts/EasternKingdoms/ScarletMonastery/boss_headless_horseman.cpp b/src/server/scripts/EasternKingdoms/ScarletMonastery/boss_headless_horseman.cpp
index 3e5fb9884a5..d3143ebe8d2 100644
--- a/src/server/scripts/EasternKingdoms/ScarletMonastery/boss_headless_horseman.cpp
+++ b/src/server/scripts/EasternKingdoms/ScarletMonastery/boss_headless_horseman.cpp
@@ -261,7 +261,7 @@ public:
 
         void EnterCombat(Unit* /*who*/) override { }
 
-        void SaySound(uint8 textEntry, Unit* target = 0)
+        void SaySound(uint8 textEntry, Unit* target = nullptr)
         {
             Talk(textEntry, target);
 
@@ -532,7 +532,7 @@ public:
             }
         }
 
-        void SaySound(uint8 textEntry, Unit* target = 0)
+        void SaySound(uint8 textEntry, Unit* target = nullptr)
         {
             Talk(textEntry, target);
             laugh += 4000;
@@ -542,7 +542,7 @@ public:
         {
             Map::PlayerList const &PlayerList = me->GetMap()->GetPlayers();
             if (PlayerList.isEmpty())
-                return NULL;
+                return nullptr;
 
             std::list<Player*> temp;
             for (Map::PlayerList::const_iterator i = PlayerList.begin(); i != PlayerList.end(); ++i)
@@ -556,7 +556,7 @@ public:
                 advance(j, rand32() % temp.size());
                 return (*j);
             }
-            return NULL;
+            return nullptr;
         }
 
         void SpellHitTarget(Unit* unit, const SpellInfo* spell) override
diff --git a/src/server/scripts/EasternKingdoms/ScarletMonastery/boss_mograine_and_whitemane.cpp b/src/server/scripts/EasternKingdoms/ScarletMonastery/boss_mograine_and_whitemane.cpp
index 2ebe9e23f39..5ae31c00d81 100644
--- a/src/server/scripts/EasternKingdoms/ScarletMonastery/boss_mograine_and_whitemane.cpp
+++ b/src/server/scripts/EasternKingdoms/ScarletMonastery/boss_mograine_and_whitemane.cpp
@@ -332,7 +332,7 @@ public:
             //If we are <75% hp cast healing spells at self or Mograine
             if (Heal_Timer <= diff)
             {
-                Creature* target = NULL;
+                Creature* target = nullptr;
 
                 if (!HealthAbovePct(75))
                     target = me;
diff --git a/src/server/scripts/EasternKingdoms/Scholomance/boss_kirtonos_the_herald.cpp b/src/server/scripts/EasternKingdoms/Scholomance/boss_kirtonos_the_herald.cpp
index 8feb110c2b3..2888a9b4135 100644
--- a/src/server/scripts/EasternKingdoms/Scholomance/boss_kirtonos_the_herald.cpp
+++ b/src/server/scripts/EasternKingdoms/Scholomance/boss_kirtonos_the_herald.cpp
@@ -291,7 +291,7 @@ class go_brazier_of_the_herald : public GameObjectScript
             bool GossipHello(Player* player) override
             {
                 me->UseDoorOrButton();
-                me->PlayDirectSound(SOUND_SCREECH, 0);
+                me->PlayDirectSound(SOUND_SCREECH, nullptr);
                 player->SummonCreature(NPC_KIRTONOS, PosSummon[0], TEMPSUMMON_DEAD_DESPAWN, 900000);
                 return true;
             }
diff --git a/src/server/scripts/EasternKingdoms/ShadowfangKeep/shadowfang_keep.cpp b/src/server/scripts/EasternKingdoms/ShadowfangKeep/shadowfang_keep.cpp
index b1b641806a8..1ab0e46a377 100644
--- a/src/server/scripts/EasternKingdoms/ShadowfangKeep/shadowfang_keep.cpp
+++ b/src/server/scripts/EasternKingdoms/ShadowfangKeep/shadowfang_keep.cpp
@@ -332,7 +332,7 @@ class spell_shadowfang_keep_haunting_spirits : public SpellScriptLoader
 
             void HandleDummyTick(AuraEffect const* aurEff)
             {
-                GetTarget()->CastSpell((Unit*)NULL, aurEff->GetAmount(), true);
+                GetTarget()->CastSpell(nullptr, aurEff->GetAmount(), true);
             }
 
             void HandleUpdatePeriodic(AuraEffect* aurEff)
diff --git a/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_eredar_twins.cpp b/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_eredar_twins.cpp
index 082cfc98f27..a6bf0dec111 100644
--- a/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_eredar_twins.cpp
+++ b/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_eredar_twins.cpp
@@ -268,8 +268,8 @@ public:
 
             if (ShadowimageTimer <= diff)
             {
-                Unit* target = NULL;
-                Creature* temp = NULL;
+                Unit* target = nullptr;
+                Creature* temp = nullptr;
                 for (uint8 i = 0; i<3; ++i)
                 {
                     target = SelectTarget(SELECT_TARGET_RANDOM, 0);
diff --git a/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_felmyst.cpp b/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_felmyst.cpp
index ece1d768695..6f406c7f516 100644
--- a/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_felmyst.cpp
+++ b/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_felmyst.cpp
@@ -217,7 +217,7 @@ public:
                     summon->CastSpell(summon, SPELL_FOG_CHARM, true);
                     summon->CastSpell(summon, SPELL_FOG_CHARM2, true);
                 }
-                me->DealDamage(caster, caster->GetHealth(), NULL, DIRECT_DAMAGE, SPELL_SCHOOL_MASK_NORMAL, NULL, false);
+                me->DealDamage(caster, caster->GetHealth(), nullptr, DIRECT_DAMAGE, SPELL_SCHOOL_MASK_NORMAL, nullptr, false);
             }
         }
 
@@ -362,7 +362,7 @@ public:
                 }
                 case 6:
                     me->SetFacingTo(me->GetAngle(breathX, breathY));
-                    //DoTextEmote("takes a deep breath.", NULL);
+                    //DoTextEmote("takes a deep breath.", nullptr);
                     events.ScheduleEvent(EVENT_FLIGHT_SEQUENCE, 10000);
                     break;
                 case 7:
diff --git a/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_kiljaeden.cpp b/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_kiljaeden.cpp
index b3de767c2e7..e2f9588173e 100644
--- a/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_kiljaeden.cpp
+++ b/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_kiljaeden.cpp
@@ -286,7 +286,7 @@ public:
                     return ObjectAccessor::GetGameObject(*me, instance->GetGuidData(DATA_ORB_OF_THE_BLUE_DRAGONFLIGHT_4));
             }
 
-            return NULL;
+            return nullptr;
         }
 
         void ResetOrbs()
@@ -750,7 +750,7 @@ public:
                         case TIMER_LEGION_LIGHTNING:
                             if (!me->IsNonMeleeSpellCast(false))
                             {
-                                Unit* pRandomPlayer = NULL;
+                                Unit* pRandomPlayer = nullptr;
 
                                 me->RemoveAurasDueToSpell(SPELL_SOUL_FLAY);
                                 for (uint8 z = 0; z < 6; ++z)
@@ -845,7 +845,7 @@ public:
                             TimerIsDeactivated[TIMER_ORBS_EMPOWER] = true;
                             break;
                         case TIMER_ARMAGEDDON: //Phase 4
-                            Unit* target = NULL;
+                            Unit* target = nullptr;
                             for (uint8 z = 0; z < 6; ++z)
                             {
                                 target = SelectTarget(SELECT_TARGET_RANDOM, 0, 100, true);
diff --git a/src/server/scripts/EasternKingdoms/SunwellPlateau/instance_sunwell_plateau.cpp b/src/server/scripts/EasternKingdoms/SunwellPlateau/instance_sunwell_plateau.cpp
index 95b2eb92103..a077212480f 100644
--- a/src/server/scripts/EasternKingdoms/SunwellPlateau/instance_sunwell_plateau.cpp
+++ b/src/server/scripts/EasternKingdoms/SunwellPlateau/instance_sunwell_plateau.cpp
@@ -93,7 +93,7 @@ class instance_sunwell_plateau : public InstanceMapScript
                 else
                     TC_LOG_DEBUG("scripts", "Instance Sunwell Plateau: GetPlayerInMap, but PlayerList is empty!");
 
-                return NULL;
+                return nullptr;
             }
 
             ObjectGuid GetGuidData(uint32 id) const override
diff --git a/src/server/scripts/EasternKingdoms/ZulAman/boss_hexlord.cpp b/src/server/scripts/EasternKingdoms/ZulAman/boss_hexlord.cpp
index 04d94f78d6c..c1038bd7d08 100644
--- a/src/server/scripts/EasternKingdoms/ZulAman/boss_hexlord.cpp
+++ b/src/server/scripts/EasternKingdoms/ZulAman/boss_hexlord.cpp
@@ -121,7 +121,7 @@ class spell_hexlord_unstable_affliction : public SpellScriptLoader
             void HandleDispel(DispelInfo* dispelInfo)
             {
                 if (Unit* caster = GetCaster())
-                    caster->CastSpell(dispelInfo->GetDispeller(), SPELL_WL_UNSTABLE_AFFL_DISPEL, true, NULL, GetEffect(EFFECT_0));
+                    caster->CastSpell(dispelInfo->GetDispeller(), SPELL_WL_UNSTABLE_AFFL_DISPEL, true, nullptr, GetEffect(EFFECT_0));
             }
 
             void Register() override
diff --git a/src/server/scripts/EasternKingdoms/ZulAman/zulaman.cpp b/src/server/scripts/EasternKingdoms/ZulAman/zulaman.cpp
index 61688d363a2..0def31e0ce6 100644
--- a/src/server/scripts/EasternKingdoms/ZulAman/zulaman.cpp
+++ b/src/server/scripts/EasternKingdoms/ZulAman/zulaman.cpp
@@ -181,7 +181,7 @@ class npc_voljin_zulaman : public CreatureScript
                             break;
                         case EVENT_START_DOOR_OPENING_7:
                             if (Creature* hexLordTrigger = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_HEXLORD_TRIGGER)))
-                                sCreatureTextMgr->SendChat(hexLordTrigger, SAY_HEXLOR_INTRO, 0, CHAT_MSG_ADDON, LANG_ADDON, TEXT_RANGE_MAP);
+                                sCreatureTextMgr->SendChat(hexLordTrigger, SAY_HEXLOR_INTRO, nullptr, CHAT_MSG_ADDON, LANG_ADDON, TEXT_RANGE_MAP);
                             break;
                         default:
                             break;
diff --git a/src/server/scripts/EasternKingdoms/ZulGurub/boss_mandokir.cpp b/src/server/scripts/EasternKingdoms/ZulGurub/boss_mandokir.cpp
index af4e9e7b4e5..b292851b8db 100644
--- a/src/server/scripts/EasternKingdoms/ZulGurub/boss_mandokir.cpp
+++ b/src/server/scripts/EasternKingdoms/ZulGurub/boss_mandokir.cpp
@@ -502,8 +502,8 @@ class spell_mandokir_bloodletting : public SpellScriptLoader
 
                 int32 damage = std::max<int32>(7500, target->CountPctFromCurHealth(aurEff->GetAmount()));
 
-                caster->CastCustomSpell(target, SPELL_BLOODLETTING_DAMAGE, &damage, 0, 0, true);
-                target->CastCustomSpell(caster, SPELL_BLOODLETTING_HEAL, &damage, 0, 0, true);
+                caster->CastCustomSpell(target, SPELL_BLOODLETTING_DAMAGE, &damage, nullptr, nullptr, true);
+                target->CastCustomSpell(caster, SPELL_BLOODLETTING_HEAL, &damage, nullptr, nullptr, true);
             }
 
             void Register() override
@@ -713,7 +713,7 @@ class spell_mandokir_reanimate_ohgan : public SpellScriptLoader
                 {
                     target->RemoveAura(SPELL_PERMANENT_FEIGN_DEATH);
                     target->CastSpell(target, SPELL_OHGAN_HEART_VISUAL, true);
-                    target->CastSpell((Unit*)NULL, SPELL_OHGAN_ORDERS, true);
+                    target->CastSpell(nullptr, SPELL_OHGAN_ORDERS, true);
                 }
             }
 
diff --git a/src/server/scripts/EasternKingdoms/zone_blasted_lands.cpp b/src/server/scripts/EasternKingdoms/zone_blasted_lands.cpp
index 181da9cc1ae..66e48158ad2 100644
--- a/src/server/scripts/EasternKingdoms/zone_blasted_lands.cpp
+++ b/src/server/scripts/EasternKingdoms/zone_blasted_lands.cpp
@@ -57,7 +57,7 @@ class spell_razelikh_teleport_group : public SpellScriptLoader
                 {
                     if (Group* group = player->GetGroup())
                     {
-                        for (GroupReference* itr = group->GetFirstMember(); itr != NULL; itr = itr->next())
+                        for (GroupReference* itr = group->GetFirstMember(); itr != nullptr; itr = itr->next())
                             if (Player* member = itr->GetSource())
                                 if (member->IsWithinDistInMap(player, 20.0f) && !member->isDead())
                                     member->CastSpell(member, SPELL_TELEPORT_SINGLE_IN_GROUP, true);
diff --git a/src/server/scripts/EasternKingdoms/zone_western_plaguelands.cpp b/src/server/scripts/EasternKingdoms/zone_western_plaguelands.cpp
index c706e47f739..0851b8393f1 100644
--- a/src/server/scripts/EasternKingdoms/zone_western_plaguelands.cpp
+++ b/src/server/scripts/EasternKingdoms/zone_western_plaguelands.cpp
@@ -152,7 +152,7 @@ public:
         void DoDie()
         {
             //summoner dies here
-            me->DealDamage(me, me->GetHealth(), NULL, DIRECT_DAMAGE, SPELL_SCHOOL_MASK_NORMAL, NULL, false);
+            me->DealDamage(me, me->GetHealth(), nullptr, DIRECT_DAMAGE, SPELL_SCHOOL_MASK_NORMAL, nullptr, false);
             //override any database `spawntimesecs` to prevent duplicated summons
             uint32 rTime = me->GetRespawnDelay();
             if (rTime < 600)