cpp/openttd-patchpack/source Files · src/group.h

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r6888:f2ab5d0e6596 2.2 KiB text/x-c Show Annotation Show as Raw Download as Raw

rubidium

(svn r10131) -Fix [FS#810]: when removing a dock, a ship will always try to reach the old location of the dock even when it cannot anymore because it the old location of the dock is now land instead of water.

/* $Id$ */

/** @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 */