Core/Creature: Refactor and improve vendor items (#20328)

* Implement item bonuses in vendors.
* Implement the PlayerConditionID and IgnoreFiltering DB columns.
* Fix loading referenced vendor items
* Allow adding bonuses in .npc add item command

1 files changed, 11 insertions, 0 deletions

diff --git a/src/server/game/Handlers/ItemHandler.cpp b/src/server/game/Handlers/ItemHandler.cpp
index e24e2bfc7a2..cee3a98a452 100644
--- a/src/server/game/Handlers/ItemHandler.cpp
+++ b/src/server/game/Handlers/ItemHandler.cpp
@@ -617,6 +617,10 @@ void WorldSession::SendListInventory(ObjectGuid vendorGuid)
 
         WorldPackets::NPC::VendorItem& item = packet.Items[count];
 
+        if (PlayerConditionEntry const* playerCondition = sPlayerConditionStore.LookupEntry(vendorItem->PlayerConditionId))
+            if (!ConditionMgr::IsPlayerMeetingCondition(_player, playerCondition))
+                item.PlayerConditionFailed = playerCondition->ID;
+
         if (vendorItem->Type == ITEM_VENDOR_TYPE_ITEM)
         {
             ItemTemplate const* itemTemplate = sObjectMgr->GetItemTemplate(vendorItem->item);
@@ -658,8 +662,14 @@ void WorldSession::SendListInventory(ObjectGuid vendorGuid)
             item.Quantity = leftInStock;
             item.StackCount = itemTemplate->GetBuyCount();
             item.Price = price;
+            item.DoNotFilterOnVendor = vendorItem->IgnoreFiltering;
 
             item.Item.ItemID = vendorItem->item;
+            if (!vendorItem->BonusListIDs.empty())
+            {
+                item.Item.ItemBonus = boost::in_place();
+                item.Item.ItemBonus->BonusListIDs = vendorItem->BonusListIDs;
+            }
         }
         else if (vendorItem->Type == ITEM_VENDOR_TYPE_CURRENCY)
         {
@@ -675,6 +685,7 @@ void WorldSession::SendListInventory(ObjectGuid vendorGuid)
             item.Item.ItemID = vendorItem->item;
             item.Type = vendorItem->Type;
             item.StackCount = vendorItem->maxcount;
+            item.DoNotFilterOnVendor = vendorItem->IgnoreFiltering;
         }
         else
             continue;