* Checks if a GroupID stands for all vehicles of a company

 * @param id_g The GroupID to check

 * @return true is id_g is identical to ALL_GROUP

 */

static inline bool IsAllGroupID(GroupID id_g)

{

	return id_g == ALL_GROUP;

}

#define FOR_ALL_GROUPS_FROM(var, start) FOR_ALL_ITEMS_FROM(Group, group_index, var, start)

#define FOR_ALL_GROUPS(var) FOR_ALL_GROUPS_FROM(var, 0)

uint GetGroupNumEngines(CompanyID company, GroupID id_g, EngineID id_e);

void SetTrainGroupID(Train *v, GroupID grp);

void UpdateTrainGroupID(Train *v);

void RemoveVehicleFromGroup(const Vehicle *v);

void RemoveAllGroupsForCompany(const CompanyID company);

extern GroupID _new_group_id;

#endif /* GROUP_H */