Core/Spells:

- corrected structure of SMSG_PET_CAST_FAILED (fixes highlighted action buttons)
- simplified spell focus check

src/server/game/Entities/Unit/Unit.cpp

@@ -162,7 +162,7 @@ ProcEventInfo::ProcEventInfo(Unit* actor, Unit* actionTarget, Unit* procTarget,
 #endif
 Unit::Unit(bool isWorldObject) :
     WorldObject(isWorldObject), m_movedPlayer(NULL), m_lastSanctuaryTime(0),
-    m_TempSpeed(0.0f), IsAIEnabled(false), NeedChangeAI(false),
+    IsAIEnabled(false), NeedChangeAI(false),
     m_ControlledByPlayer(false), movespline(new Movement::MoveSpline()),
     i_AI(NULL), i_disabledAI(NULL), m_AutoRepeatFirstCast(false), m_procDeep(0),
     m_removedAurasCount(0), i_motionMaster(this), m_ThreatManager(this),
@@ -195,8 +195,6 @@ Unit::Unit(bool isWorldObject) :
     for (uint8 i = 0; i < CURRENT_MAX_SPELL; ++i)
         m_currentSpells[i] = NULL;
 
-    m_addDmgOnce = 0;
-
     for (uint8 i = 0; i < MAX_SUMMON_SLOT; ++i)
         m_SummonSlot[i] = 0;
 
@@ -14353,22 +14351,6 @@ Player* Unit::GetSpellModOwner() const
 }
 
 ///----------Pet responses methods-----------------
-void Unit::SendPetCastFail(uint32 spellid, SpellCastResult result)
-{
-    if (result == SPELL_CAST_OK)
-        return;
-
-    Unit* owner = GetCharmerOrOwner();
-    if (!owner || owner->GetTypeId() != TYPEID_PLAYER)
-        return;
-
-    WorldPacket data(SMSG_PET_CAST_FAILED, 1 + 4 + 1);
-    data << uint8(0);                                       // cast count
-    data << uint32(spellid);
-    data << uint8(result);
-    owner->ToPlayer()->GetSession()->SendPacket(&data);
-}
-
 void Unit::SendPetActionFeedback(uint8 msg)
 {
     Unit* owner = GetOwner();