Function findFreeObjectId

src/OpenLoco/src/Objects/ObjectManager.cpp:576–586

    }

    static std::optional<LoadedObjectId> findFreeObjectId(const ObjectType type)
    {
        for (LoadedObjectId id = 0; id < getMaxObjects(type); ++id)
        {
            if (getAny({ type, id }) == nullptr)
            {
                return id;
            }
        }
        return std::nullopt;
    }

    // 0x00471FF8
    void unload(const ObjectHeader& header)