Core/Spells: Add duration argument to Unit::SendPlaySpellVisualKit

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

@@ -15017,14 +15017,14 @@ void Unit::SetAuraStack(uint32 spellId, Unit* target, uint32 stack)
         aura->SetStackAmount(stack);
 }
 
-void Unit::SendPlaySpellVisualKit(uint32 id, uint32 unkParam)
+void Unit::SendPlaySpellVisualKit(uint32 id, uint32 type, uint32 duration)
 {
     ObjectGuid guid = GetGUID();
 
     WorldPacket data(SMSG_PLAY_SPELL_VISUAL_KIT, 4 + 4+ 4 + 8);
-    data << uint32(0);
+    data << uint32(duration);
     data << uint32(id);     // SpellVisualKit.dbc index
-    data << uint32(unkParam);
+    data << uint32(type);
     data.WriteBit(guid[4]);
     data.WriteBit(guid[7]);
     data.WriteBit(guid[5]);

src/server/game/Entities/Unit/Unit.h

@@ -1596,7 +1596,7 @@ class TC_GAME_API Unit : public WorldObject
         Aura* AddAura(uint32 spellId, Unit* target);
         Aura* AddAura(SpellInfo const* spellInfo, uint8 effMask, Unit* target);
         void SetAuraStack(uint32 spellId, Unit* target, uint32 stack);
-        void SendPlaySpellVisualKit(uint32 id, uint32 unkParam);
+        void SendPlaySpellVisualKit(uint32 id, uint32 type, uint32 duration);
 
         void DeMorph();
 

src/server/game/Handlers/NPCHandler.cpp

@@ -302,8 +302,8 @@ void WorldSession::HandleTrainerBuySpellOpcode(WorldPacket& recvData)
 
     _player->ModifyMoney(-int64(nSpellCost));
 
-    trainer->SendPlaySpellVisualKit(179,0); // 53 SpellCastDirected
-    trainer->SendPlaySpellVisualKit(362, 1);    // 113 EmoteSalute
+    trainer->SendPlaySpellVisualKit(179, 0, 0); // 53 SpellCastDirected
+    trainer->SendPlaySpellVisualKit(362, 1, 0);    // 113 EmoteSalute
 
     // learn explicitly or cast explicitly
     if (trainer_spell->IsCastable())