- dstream<<__FUNCTION_NAME<<": Operation not allowed"<<std::endl;
- return;
- }
-
- // Take item from source list
- InventoryItem *item1 = NULL;
- if(count == 0)
- item1 = list_from->changeItem(from_i, NULL);
- else
- item1 = list_from->takeItem(from_i, count);
-
- // Try to add the item to destination list
- InventoryItem *olditem = item1;
- item1 = list_to->addItem(to_i, item1);
-
- // If nothing is returned, the item was fully added
- if(item1 == NULL)
- return;
-
- // If olditem is returned, nothing was added.
- bool nothing_added = (item1 == olditem);
-
- // If something else is returned, part of the item was left unadded.
- // Add the other part back to the source item
- list_from->addItem(from_i, item1);
-
- // If olditem is returned, nothing was added.
- // Swap the items
- if(nothing_added)
- {
- // Take item from source list
- item1 = list_from->changeItem(from_i, NULL);
- // Adding was not possible, swap the items.
- InventoryItem *item2 = list_to->changeItem(to_i, item1);
- // Put item from destination list to the source list
- list_from->changeItem(from_i, item2);
- return;