ItemUsageValue: Handle items that create required items (#1091)

* Updated IsItemUsefulForQuest to handle items that create required quest items

* Debug output

* Removed unneeded botAI->

* Debug output in Calculate

* -> not .

* Comprehensive debug output for quest usage

* Corrected logic for lootable items when sync quest is enabled

* #include "LootObjectStack.h"

* Corrected call to IsItem

* Removed debug statements

* Reimplement ItemCount >= RequiredItemCount

* Modified CanLoot to loot all items when loot source is an item in their bags

* Set loot target when sending Open packet

src/strategy/actions/OpenItemAction.cpp

@@ -4,6 +4,9 @@
 #include "WorldPacket.h"
 #include "Player.h"
 #include "ObjectMgr.h"
+#include "LootObjectStack.h"
+#include "AiObjectContext.h"
+
 bool OpenItemAction::Execute(Event event)
 {
     bool foundOpenable = false;
@@ -27,6 +30,11 @@ void OpenItemAction::OpenItem(Item* item, uint8 bag, uint8 slot)
     packet << bag << slot;
     bot->GetSession()->HandleOpenItemOpcode(packet);
 
+    // Store the item GUID as the loot target
+    LootObject lootObject;
+    lootObject.guid = item->GetGUID();
+    botAI->GetAiObjectContext()->GetValue<LootObject>("loot target")->Set(lootObject);
+
     std::ostringstream out;
     out << "Opened item: " << item->GetTemplate()->Name1;
     botAI->TellMaster(out.str());