Allow sell to npc many items at one time (hercules).halloween2015

2 files changed, 34 insertions, 1 deletions

diff --git a/src/net/eathena/npchandler.cpp b/src/net/eathena/npchandler.cpp
index dc01d512c..9b09d8799 100644
--- a/src/net/eathena/npchandler.cpp
+++ b/src/net/eathena/npchandler.cpp
@@ -187,10 +187,41 @@ void NpcHandler::sellItem(const BeingId beingId A_UNUSED,
     createOutPacket(CMSG_NPC_SELL_REQUEST);
     outMsg.writeInt16(8, "len");
     outMsg.writeInt16(static_cast<int16_t>(itemId + INVENTORY_OFFSET),
-        "item id");
+        "item index");
     outMsg.writeInt16(static_cast<int16_t>(amount), "amount");
 }
 
+void NpcHandler::sellItems(std::vector<ShopItem*> &items) const
+{
+    const int pairSize = 4;
+    int cnt = 0;
+
+    FOR_EACH (std::vector<ShopItem*>::iterator, it, items)
+    {
+        ShopItem *const item = *it;
+        const int usedQuantity = item->getUsedQuantity();
+        if (!usedQuantity)
+            continue;
+        cnt ++;
+    }
+
+    createOutPacket(CMSG_NPC_SELL_REQUEST);
+    outMsg.writeInt16(static_cast<int16_t>(4 + pairSize * cnt), "len");
+    FOR_EACH (std::vector<ShopItem*>::iterator, it, items)
+    {
+        ShopItem *const item = *it;
+        const int usedQuantity = item->getUsedQuantity();
+        if (!usedQuantity)
+            continue;
+        item->increaseUsedQuantity(-usedQuantity);
+        item->update();
+        outMsg.writeInt16(static_cast<int16_t>(
+            item->getCurrentInvIndex() + INVENTORY_OFFSET),
+            "item index");
+        outMsg.writeInt16(static_cast<int16_t>(usedQuantity), "amount");
+    }
+}
+
 void NpcHandler::completeProgressBar() const
 {
     createOutPacket(CMSG_NPC_COMPLETE_PROGRESS_BAR);
diff --git a/src/net/eathena/npchandler.h b/src/net/eathena/npchandler.h
index 608c7d775..34855c802 100644
--- a/src/net/eathena/npchandler.h
+++ b/src/net/eathena/npchandler.h
@@ -65,6 +65,8 @@ class NpcHandler final : public Ea::NpcHandler
                       const int itemId,
                       const int amount) const override final;
 
+        void sellItems(std::vector<ShopItem*> &items) const override final;
+
         void completeProgressBar() const override final;
 
         void produceMix(const int nameId,