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/* $Id$ */
/** @file group.h Base class from groups. */
#ifndef GROUP_H
#define GROUP_H
#include "group_type.h"
#include "core/pool.hpp"
#include "company_type.h"
#include "vehicle_type.h"
#include "engine_type.h"
typedef Pool<Group, GroupID, 16, 64000> GroupPool;
extern GroupPool _group_pool;
struct Group : GroupPool::PoolItem<&_group_pool> {
char *name; ///< Group Name
uint16 num_vehicle; ///< Number of vehicles wich belong to the group
OwnerByte owner; ///< Group Owner
VehicleTypeByte vehicle_type; ///< Vehicle type of the group
bool replace_protection; ///< If set to true, the global autoreplace have no effect on the group
uint16 *num_engines; ///< Caches the number of engines of each type the company owns (no need to save this)
Group(CompanyID owner = INVALID_COMPANY);
~Group();
};
static inline bool IsDefaultGroupID(GroupID index)
{
return index == DEFAULT_GROUP;
}
/**
* 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)
/**
* Get the current size of the GroupPool
*/
static inline uint GetGroupArraySize()
{
const Group *g;
uint num = 0;
FOR_ALL_GROUPS(g) num++;
return num;
}
/**
* Get the number of engines with EngineID id_e in the group with GroupID
* id_g
* @param id_g The GroupID of the group used
* @param id_e The EngineID of the engine to count
* @return The number of engines with EngineID id_e in the group
*/
uint GetGroupNumEngines(CompanyID company, GroupID id_g, EngineID id_e);
static inline void IncreaseGroupNumVehicle(GroupID id_g)
{
Group *g = Group::GetIfValid(id_g);
if (g != NULL) g->num_vehicle++;
}
static inline void DecreaseGroupNumVehicle(GroupID id_g)
{
Group *g = Group::GetIfValid(id_g);
if (g != NULL) g->num_vehicle--;
}
void InitializeGroup();
void SetTrainGroupID(Vehicle *v, GroupID grp);
void UpdateTrainGroupID(Vehicle *v);
void RemoveVehicleFromGroup(const Vehicle *v);
void RemoveAllGroupsForCompany(const CompanyID company);
extern GroupID _new_group_id;
#endif /* GROUP_H */
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