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/* $Id$ */
/** @file group.h */
#ifndef GROUP_H
#define GROUP_H
#include "oldpool.h"
enum {
DEFAULT_GROUP = 0xFFFE,
INVALID_GROUP = 0xFFFF,
};
struct Group {
StringID string_id; ///< Group Name
uint16 num_vehicle; ///< Number of vehicles wich belong to the group
PlayerID owner; ///< Group Owner
GroupID index; ///< Array index
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[TOTAL_NUM_ENGINES]; ///< Caches the number of engines of each type the player owns (no need to save this)
};
DECLARE_OLD_POOL(Group, Group, 5, 2047)
static inline bool IsValidGroup(const Group *g)
{
return g->string_id != STR_NULL;
}
static inline void DestroyGroup(Group *g)
{
DeleteName(g->string_id);
}
static inline void DeleteGroup(Group *g)
{
DestroyGroup(g);
g->string_id = STR_NULL;
}
static inline bool IsValidGroupID(GroupID index)
{
return index < GetGroupPoolSize() && IsValidGroup(GetGroup(index));
}
static inline bool IsDefaultGroupID(GroupID index)
{
return (index == DEFAULT_GROUP);
}
static inline StringID GetGroupName(GroupID index)
{
if (!IsValidGroupID(index)) return STR_NULL;
return GetGroup(index)->string_id;
}
#define FOR_ALL_GROUPS_FROM(g, start) for (g = GetGroup(start); g != NULL; g = (g->index + 1U < GetGroupPoolSize()) ? GetGroup(g->index + 1) : NULL) if (IsValidGroup(g))
#define FOR_ALL_GROUPS(g) FOR_ALL_GROUPS_FROM(g, 0)
/**
* Get the current size of the GroupPool
*/
static inline uint GetGroupArraySize(void)
{
const Group *g;
uint num = 0;
FOR_ALL_GROUPS(g) num++;
return num;
}
static inline void IncreaseGroupNumVehicle(GroupID id_g)
{
if (IsValidGroupID(id_g)) GetGroup(id_g)->num_vehicle++;
}
static inline void DecreaseGroupNumVehicle(GroupID id_g)
{
if (IsValidGroupID(id_g)) GetGroup(id_g)->num_vehicle--;
}
void InitializeGroup();
void SetTrainGroupID(Vehicle *v, GroupID grp);
void UpdateTrainGroupID(Vehicle *v);
void RemoveVehicleFromGroup(const Vehicle *v);
void RemoveAllGroupsForPlayer(const Player *p);
#endif /* GROUP_H */
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