Core/Creatures: implement CREATURE_FLAG_EXTRA_NO_SELL_VENDOR (#21642)

* Add CREATURE_FLAG_EXTRA_NO_SELL_VENDOR and use it for a single no-sell vendor in game (there are more of them in later expansions)

1 files changed, 6 insertions, 0 deletions

diff --git a/src/server/game/Handlers/ItemHandler.cpp b/src/server/game/Handlers/ItemHandler.cpp
index 07cc7a56ac2..a968536c6cc 100644
--- a/src/server/game/Handlers/ItemHandler.cpp
+++ b/src/server/game/Handlers/ItemHandler.cpp
@@ -385,6 +385,12 @@ void WorldSession::HandleSellItemOpcode(WorldPacket& recvData)
         return;
     }
 
+    if ((creature->GetCreatureTemplate()->flags_extra & CREATURE_FLAG_EXTRA_NO_SELL_VENDOR) != 0)
+    {
+        _player->SendSellError(SELL_ERR_CANT_SELL_TO_THIS_MERCHANT, creature, itemguid, 0);
+        return;
+    }
+
     // remove fake death
     if (GetPlayer()->HasUnitState(UNIT_STATE_DIED))
         GetPlayer()->RemoveAurasByType(SPELL_AURA_FEIGN_DEATH);