Spells/Auras: Implement SPELL_AURA_ACT_AS_CONTROL_ZONE (#30083)

(cherry picked from commit 66abfd1c530e81f24856825f7ebe5a1c1ba8c58e)

# Conflicts:
#	src/server/game/Spells/Auras/SpellAuraEffects.cpp
#	src/server/game/Spells/Auras/SpellAuraEffects.h

5 files changed, 44 insertions, 3 deletions

diff --git a/src/server/game/Entities/GameObject/GameObject.cpp b/src/server/game/Entities/GameObject/GameObject.cpp
index feb5b263b05..0513a68ad86 100644
--- a/src/server/game/Entities/GameObject/GameObject.cpp
+++ b/src/server/game/Entities/GameObject/GameObject.cpp
@@ -721,7 +721,7 @@ public:
         if (static_cast<uint32>(std::abs(delta)) < minSuperiority)
             return 0;
 
-        float slope = (static_cast<float>(minTime) - maxTime) / (maxSuperiority - minSuperiority);
+        float slope = (static_cast<float>(minTime) - maxTime) / std::max<uint32>((maxSuperiority - minSuperiority), 1);
         float intercept = maxTime - slope * minSuperiority;
         float timeNeeded = slope * std::abs(delta) + intercept;
         float percentageIncrease = 100.0f / timeNeeded;
diff --git a/src/server/game/Entities/Unit/Unit.cpp b/src/server/game/Entities/Unit/Unit.cpp
index bc7333a02ce..a8d166e38b3 100644
--- a/src/server/game/Entities/Unit/Unit.cpp
+++ b/src/server/game/Entities/Unit/Unit.cpp
@@ -12819,6 +12819,11 @@ bool Unit::UpdatePosition(float x, float y, float z, float orientation, bool tel
             GetMap()->PlayerRelocation(ToPlayer(), x, y, z, orientation);
         else
             GetMap()->CreatureRelocation(ToCreature(), x, y, z, orientation);
+
+        AuraEffectList& controlZoneAuras = GetAuraEffectsByType(SPELL_AURA_ACT_AS_CONTROL_ZONE);
+        for (AuraEffect const* auraEffect : controlZoneAuras)
+            if (GameObject* controlZone = GetGameObject(auraEffect->GetSpellInfo()->Id))
+                GetMap()->GameObjectRelocation(controlZone, x, y, z, orientation);
     }
     else if (turn)
         UpdateOrientation(orientation);
diff --git a/src/server/game/Spells/Auras/SpellAuraDefines.h b/src/server/game/Spells/Auras/SpellAuraDefines.h
index edbbdb52ef6..68c8f5c0f1f 100644
--- a/src/server/game/Spells/Auras/SpellAuraDefines.h
+++ b/src/server/game/Spells/Auras/SpellAuraDefines.h
@@ -493,7 +493,7 @@ enum AuraType : uint32
     SPELL_AURA_BATTLEGROUND_PLAYER_POSITION                 = 398,
     SPELL_AURA_MOD_TIME_RATE                                = 399,
     SPELL_AURA_MOD_SKILL_2                                  = 400,
-    SPELL_AURA_401                                          = 401,
+    SPELL_AURA_ACT_AS_CONTROL_ZONE                          = 401,
     SPELL_AURA_MOD_OVERRIDE_POWER_DISPLAY                   = 402,
     SPELL_AURA_OVERRIDE_SPELL_VISUAL                        = 403,
     SPELL_AURA_OVERRIDE_ATTACK_POWER_BY_SP_PCT              = 404,
diff --git a/src/server/game/Spells/Auras/SpellAuraEffects.cpp b/src/server/game/Spells/Auras/SpellAuraEffects.cpp
index 05f4865fb2e..90ec31a6411 100644
--- a/src/server/game/Spells/Auras/SpellAuraEffects.cpp
+++ b/src/server/game/Spells/Auras/SpellAuraEffects.cpp
@@ -470,7 +470,7 @@ NonDefaultConstructible<pAuraEffectHandler> AuraEffectHandler[TOTAL_AURAS]=
     &AuraEffect::HandleBattlegroundPlayerPosition,                //398 SPELL_AURA_BATTLEGROUND_PLAYER_POSITION
     &AuraEffect::HandleNULL,                                      //399 SPELL_AURA_MOD_TIME_RATE
     &AuraEffect::HandleAuraModSkill,                              //400 SPELL_AURA_MOD_SKILL_2
-    &AuraEffect::HandleNULL,                                      //401
+    &AuraEffect::HandleAuraActAsControlZone,                      //401 SPELL_AURA_ACT_AS_CONTROL_ZONE
     &AuraEffect::HandleAuraModOverridePowerDisplay,               //402 SPELL_AURA_MOD_OVERRIDE_POWER_DISPLAY
     &AuraEffect::HandleNoImmediateEffect,                         //403 SPELL_AURA_OVERRIDE_SPELL_VISUAL implemented in Unit::GetCastSpellXSpellVisualId
     &AuraEffect::HandleOverrideAttackPowerBySpellPower,           //404 SPELL_AURA_OVERRIDE_ATTACK_POWER_BY_SP_PCT
@@ -6432,6 +6432,40 @@ void AuraEffect::HandleConvertRune(AuraApplication const* aurApp, uint8 mode, bo
         playerTarget->RemoveRunesByAuraEffect(this);
 }
 
+void AuraEffect::HandleAuraActAsControlZone(AuraApplication const* aurApp, uint8 mode, bool apply) const
+{
+    if (!(mode & AURA_EFFECT_HANDLE_REAL))
+        return;
+
+    Unit* auraOwner = aurApp->GetTarget();
+    if (!apply)
+    {
+        auraOwner->RemoveGameObject(GetSpellInfo()->Id, true);
+        return;
+    }
+
+    GameObjectTemplate const* gameobjectTemplate = sObjectMgr->GetGameObjectTemplate(GetMiscValue());
+    if (!gameobjectTemplate)
+    {
+        TC_LOG_WARN("spells.aura.effect", "AuraEffect::HanldeAuraActAsControlZone: Spell {} [EffectIndex: {}] does not have an existing gameobject template.", GetId(), GetEffIndex());
+        return;
+    }
+
+    if (gameobjectTemplate->type != GAMEOBJECT_TYPE_CONTROL_ZONE)
+    {
+        TC_LOG_WARN("spells.aura.effect", "AuraEffect::HanldeAuraActAsControlZone: Spell {} [EffectIndex: {}] has a gameobject template ({}) that is not a control zone.", GetId(), GetEffIndex(), gameobjectTemplate->entry);
+        return;
+    }
+
+    if (gameobjectTemplate->displayId)
+    {
+        TC_LOG_WARN("spell.aura.effect", "AuraEffect::HanldeAuraActAsControlZone: Spell {} [EffectIndex: {}] has a gameobject template ({}) that has a display id. Only invisible gameobjects are supported.", GetId(), GetEffIndex(), gameobjectTemplate->entry);
+        return;
+    }
+
+    if (GameObject* controlZone = auraOwner->SummonGameObject(gameobjectTemplate->entry, auraOwner->GetPosition(), QuaternionData::fromEulerAnglesZYX(aurApp->GetTarget()->GetOrientation(), 0.f, 0.f), 24h, GO_SUMMON_TIMED_OR_CORPSE_DESPAWN))
+        controlZone->SetSpellId(GetSpellInfo()->Id);
+}
 template TC_GAME_API void AuraEffect::GetTargetList(std::list<Unit*>&) const;
 template TC_GAME_API void AuraEffect::GetTargetList(std::deque<Unit*>&) const;
 template TC_GAME_API void AuraEffect::GetTargetList(std::vector<Unit*>&) const;
diff --git a/src/server/game/Spells/Auras/SpellAuraEffects.h b/src/server/game/Spells/Auras/SpellAuraEffects.h
index aeb51472173..6d7f07256c7 100644
--- a/src/server/game/Spells/Auras/SpellAuraEffects.h
+++ b/src/server/game/Spells/Auras/SpellAuraEffects.h
@@ -358,6 +358,8 @@ class TC_GAME_API AuraEffect
         void HandleProcTriggerSpellAuraProc(AuraApplication* aurApp, ProcEventInfo& eventInfo);
         void HandleProcTriggerSpellWithValueAuraProc(AuraApplication* aurApp, ProcEventInfo& eventInfo);
         void HandleProcTriggerDamageAuraProc(AuraApplication* aurApp, ProcEventInfo& eventInfo);
+
+        void HandleAuraActAsControlZone(AuraApplication const* aurApp, uint8 mode, bool apply) const;
 };
 
 namespace Trinity