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https://github.com/JGRennison/OpenTTD-patches.git
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b23f719ab9
-Codechange: IsValidXXXID now also checks if XXX is really valid, not if the number is within range Both changes again in preperation of the new mem-pool system, which requires this. IsValidXXXID is not a bit less pretty, but that will be cleaned up after the new mem-pool system
63 lines
1.3 KiB
C
63 lines
1.3 KiB
C
/* $Id$ */
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#ifndef SIGNS_H
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#define SIGNS_H
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#include "pool.h"
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typedef struct Sign {
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StringID str;
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ViewportSign sign;
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int32 x;
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int32 y;
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byte z;
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PlayerID owner; // placed by this player. Anyone can delete them though. OWNER_NONE for gray signs from old games.
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SignID index;
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} Sign;
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extern MemoryPool _sign_pool;
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/**
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* Get the pointer to the sign with index 'index'
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*/
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static inline Sign *GetSign(SignID index)
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{
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return (Sign *)GetItemFromPool(&_sign_pool, index);
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}
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/**
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* Get the current size of the SignPool
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*/
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static inline uint16 GetSignPoolSize(void)
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{
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return _sign_pool.total_items;
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}
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/**
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* Check if a Sign really exists.
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*/
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static inline bool IsValidSign(const Sign *si)
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{
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return si->str != STR_NULL;
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}
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static inline bool IsValidSignID(uint index)
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{
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return index < GetSignPoolSize() && IsValidSign(GetSign(index));
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}
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#define FOR_ALL_SIGNS_FROM(ss, start) for (ss = GetSign(start); ss != NULL; ss = (ss->index + 1 < GetSignPoolSize()) ? GetSign(ss->index + 1) : NULL) if (IsValidSign(ss))
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#define FOR_ALL_SIGNS(ss) FOR_ALL_SIGNS_FROM(ss, 0)
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VARDEF bool _sign_sort_dirty;
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VARDEF SignID *_sign_sort;
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void UpdateAllSignVirtCoords(void);
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void PlaceProc_Sign(TileIndex tile);
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/* misc.c */
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void ShowRenameSignWindow(const Sign *si);
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#endif /* SIGNS_H */
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