Core/Spells: Limited SPELL_ATTR3_PLAYERS_ONLY attribute to only allow players, not pets and totems. This fixes many boss area spells incorrectly selecting pets and totems as their targets.

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

@@ -1285,6 +1285,20 @@ namespace Trinity
         float m_fRange;
     };
 
+    class ObjectTypeIdCheck
+    {
+        public:
+            ObjectTypeIdCheck(TypeID typeId, bool equals) : _typeId(typeId), _equals(equals) {}
+            bool operator()(WorldObject* object)
+            {
+                return (object->GetTypeId() == _typeId) == _equals;
+            }
+
+        private:
+            TypeID _typeId;
+            bool _equals;
+    };
+
     // Player checks and do
 
     // Prepare using Builder localized packets with caching and send to player

src/server/game/Spells/Spell.cpp

@@ -1832,7 +1832,10 @@ void Spell::SearchAreaTarget(std::list<Unit*> &TagUnitMap, float radius, SpellNo
 
     Trinity::SpellNotifierCreatureAndPlayer notifier(m_caster, TagUnitMap, radius, type, TargetType, pos, entry, m_spellInfo);
     if ((m_spellInfo->AttributesEx3 & SPELL_ATTR3_PLAYERS_ONLY) || (TargetType == SPELL_TARGETS_ENTRY && !entry))
+    {
         m_caster->GetMap()->VisitWorld(pos->m_positionX, pos->m_positionY, radius, notifier);
+        TagUnitMap.remove_if(Trinity::ObjectTypeIdCheck(TYPEID_PLAYER, false)); // above line will select also pets and totems, remove them
+    }
     else
         m_caster->GetMap()->VisitAll(pos->m_positionX, pos->m_positionY, radius, notifier);
 
@@ -4945,7 +4948,7 @@ SpellCastResult Spell::CheckCast(bool strict)
         if (castResult != SPELL_CAST_OK)
             return castResult;
     }
-    
+
     if (!(_triggeredCastFlags & TRIGGERED_IGNORE_CASTER_AURAS))
     {
         castResult = CheckCasterAuras();