mirror of
https://github.com/JGRennison/OpenTTD-patches.git
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90 lines
2.1 KiB
C
90 lines
2.1 KiB
C
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/* $Id$ */
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/** @file group.h */
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#ifndef GROUP_H
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#define GROUP_H
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#include "oldpool.h"
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enum {
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DEFAULT_GROUP = 0xFFFE,
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INVALID_GROUP = 0xFFFF,
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};
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struct Group {
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StringID string_id; ///< Group Name
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uint16 num_vehicle; ///< Number of vehicles wich belong to the group
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PlayerID owner; ///< Group Owner
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GroupID index; ///< Array index
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VehicleTypeByte vehicle_type; ///< Vehicle type of the group
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bool replace_protection; ///< If set to true, the global autoreplace have no effect on the group
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uint16 num_engines[TOTAL_NUM_ENGINES]; ///< Caches the number of engines of each type the player owns (no need to save this)
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};
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DECLARE_OLD_POOL(Group, Group, 5, 2047)
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static inline bool IsValidGroup(const Group *g)
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{
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return g->string_id != STR_NULL;
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}
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static inline void DestroyGroup(Group *g)
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{
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DeleteName(g->string_id);
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}
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static inline void DeleteGroup(Group *g)
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{
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DestroyGroup(g);
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g->string_id = STR_NULL;
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}
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static inline bool IsValidGroupID(GroupID index)
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{
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return index < GetGroupPoolSize() && IsValidGroup(GetGroup(index));
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}
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static inline bool IsDefaultGroupID(GroupID index)
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{
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return (index == DEFAULT_GROUP);
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}
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#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))
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#define FOR_ALL_GROUPS(g) FOR_ALL_GROUPS_FROM(g, 0)
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/**
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* Get the current size of the GroupPool
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*/
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static inline uint GetGroupArraySize(void)
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{
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const Group *g;
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uint num = 0;
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FOR_ALL_GROUPS(g) num++;
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return num;
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}
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static inline void IncreaseGroupNumVehicle(GroupID id_g)
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{
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if (IsValidGroupID(id_g)) GetGroup(id_g)->num_vehicle++;
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}
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static inline void DecreaseGroupNumVehicle(GroupID id_g)
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{
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if (IsValidGroupID(id_g)) GetGroup(id_g)->num_vehicle--;
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}
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void InitializeGroup();
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void SetTrainGroupID(Vehicle *v, GroupID grp);
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void UpdateTrainGroupID(Vehicle *v);
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void RemoveVehicleFromGroup(const Vehicle *v);
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void RemoveAllGroupsForPlayer(const Player *p);
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#endif /* GROUP_H */
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