Core/Spells: Implemented SPELL_EFFECT_CANCEL_CONVERSATION (#27037)

src/server/game/Grids/Notifiers/GridNotifiers.h

@@ -1608,6 +1608,21 @@ namespace Trinity
             ObjectGuid _casterGUID;
     };
 
+    class ObjectEntryAndPrivateOwnerIfExistsCheck
+    {
+    public:
+        ObjectEntryAndPrivateOwnerIfExistsCheck(ObjectGuid ownerGUID, uint32 entry) : _ownerGUID(ownerGUID), _entry(entry) { }
+
+        bool operator()(WorldObject* object) const
+        {
+            return object->GetEntry() == _entry && (!object->IsPrivateObject() || object->GetPrivateObjectOwner() == _ownerGUID);
+        }
+
+    private:
+        ObjectGuid _ownerGUID;
+        uint32 _entry;
+    };
+
     // Player checks and do
 
     // Prepare using Builder localized packets with caching and send to player

src/server/game/Spells/Spell.h

@@ -371,6 +371,7 @@ class TC_GAME_API Spell
         void EffectLearnGarrisonBuilding();
         void EffectCreateGarrison();
         void EffectCreateConversation();
+        void EffectCancelConversation();
         void EffectAddGarrisonFollower();
         void EffectActivateGarrisonBuilding();
         void EffectHealBattlePetPct();

src/server/game/Spells/SpellEffects.cpp

@@ -194,7 +194,7 @@ NonDefaultConstructible<SpellEffectHandlerFn> SpellEffectHandlers[TOTAL_SPELL_EF
     &Spell::EffectDestroyAllTotems,                         //110 SPELL_EFFECT_DESTROY_ALL_TOTEMS
     &Spell::EffectDurabilityDamage,                         //111 SPELL_EFFECT_DURABILITY_DAMAGE
     &Spell::EffectNULL,                                     //112 SPELL_EFFECT_112
-    &Spell::EffectNULL,                                     //113 SPELL_EFFECT_CANCEL_CONVERSATION
+    &Spell::EffectCancelConversation,                       //113 SPELL_EFFECT_CANCEL_CONVERSATION
     &Spell::EffectTaunt,                                    //114 SPELL_EFFECT_ATTACK_ME
     &Spell::EffectDurabilityDamagePCT,                      //115 SPELL_EFFECT_DURABILITY_DAMAGE_PCT
     &Spell::EffectSkinPlayerCorpse,                         //116 SPELL_EFFECT_SKIN_PLAYER_CORPSE       one spell: Remove Insignia, bg usage, required special corpse flags...
@@ -5547,6 +5547,26 @@ void Spell::EffectCreateConversation()
     Conversation::CreateConversation(effectInfo->MiscValue, unitCaster, destTarget->GetPosition(), ObjectGuid::Empty, GetSpellInfo());
 }
 
+void Spell::EffectCancelConversation()
+{
+    if (effectHandleMode != SPELL_EFFECT_HANDLE_HIT_TARGET)
+        return;
+
+    if (!unitTarget)
+        return;
+
+    std::vector<WorldObject*> objs;
+    Trinity::ObjectEntryAndPrivateOwnerIfExistsCheck check(unitTarget->GetGUID(), effectInfo->MiscValue);
+    Trinity::WorldObjectListSearcher<Trinity::ObjectEntryAndPrivateOwnerIfExistsCheck> checker(unitTarget, objs, check, GRID_MAP_TYPE_MASK_CONVERSATION);
+    Cell::VisitGridObjects(unitTarget, checker, 100.0f);
+
+    for (WorldObject* obj : objs)
+    {
+        if (Conversation* convo = obj->ToConversation())
+            convo->Remove();
+    }
+}
+
 void Spell::EffectAddGarrisonFollower()
 {
     if (effectHandleMode != SPELL_EFFECT_HANDLE_HIT_TARGET)