Method GetItemIndex

src/game_party.cpp:792–796

}

std::pair<int,bool> Game_Party::GetItemIndex(int item_id) const {
	auto& ids = data.item_ids;
	auto iter = std::lower_bound(ids.begin(), ids.end(), item_id);
	return std::make_pair<int,bool>(iter - ids.begin(), (iter != ids.end() && *iter == item_id));
}