Functions to set Creature Held Item, and helper function to check whether Creature is holding a specific held item.

src/Battling/Models/Creature.cpp

@@ -178,3 +178,10 @@ const Library::SpeciesVariant* Battling::Creature::GetDisplayVariant() const {
         variant = _variant;
     return variant;
 }
+void Battling::Creature::SetHeldItem(const std::string& itemName) {
+    const Library::Item* item;
+    if (!_library->GetItemLibrary()->TryGet(itemName, item)) {
+        throw CreatureException("Item not found.");
+    }
+    _heldItem = item;
+}