tron@2186: /* $Id$ */
tron@2186: 
truelight@988: #ifndef SIGNS_H
truelight@988: #define SIGNS_H
truelight@988: 
truelight@1283: #include "pool.h"
truelight@1283: 
truelight@988: typedef struct SignStruct {
truelight@988: 	StringID     str;
truelight@988: 	ViewportSign sign;
truelight@988: 	int32        x;
truelight@988: 	int32        y;
truelight@988: 	byte         z;
tron@2498: 	PlayerID owner; // placed by this player. Anyone can delete them though.
dominik@1165: 							// OWNER_NONE for gray signs from old games.
truelight@988: 
truelight@988: 	uint16       index;
truelight@988: } SignStruct;
truelight@988: 
truelight@1283: extern MemoryPool _sign_pool;
truelight@988: 
truelight@1283: /**
matthijs@1330:  * Check if a Sign really exists.
matthijs@1330:  */
Darkvater@2436: static inline bool IsValidSign(const SignStruct* ss)
matthijs@1330: {
matthijs@1330: 	return ss->str != 0;
matthijs@1330: }
matthijs@1330: 
matthijs@1330: /**
truelight@1283:  * Get the pointer to the sign with index 'index'
truelight@1283:  */
truelight@988: static inline SignStruct *GetSign(uint index)
truelight@988: {
truelight@1283: 	return (SignStruct*)GetItemFromPool(&_sign_pool, index);
truelight@988: }
truelight@988: 
truelight@1283: /**
truelight@1283:  * Get the current size of the SignPool
truelight@1283:  */
truelight@1283: static inline uint16 GetSignPoolSize(void)
truelight@1283: {
truelight@1283: 	return _sign_pool.total_items;
truelight@1283: }
truelight@1283: 
Darkvater@1837: static inline bool IsSignIndex(uint index)
Darkvater@1837: {
Darkvater@1837: 	return index < GetSignPoolSize();
Darkvater@1837: }
Darkvater@1837: 
truelight@1283: #define FOR_ALL_SIGNS_FROM(ss, start) for (ss = GetSign(start); ss != NULL; ss = (ss->index + 1 < GetSignPoolSize()) ? GetSign(ss->index + 1) : NULL)
truelight@1283: #define FOR_ALL_SIGNS(ss) FOR_ALL_SIGNS_FROM(ss, 0)
truelight@988: 
truelight@988: VARDEF SignStruct *_new_sign_struct;
truelight@988: 
truelight@1575: VARDEF bool _sign_sort_dirty;
truelight@1575: VARDEF uint16 *_sign_sort;
truelight@1575: 
tron@1093: void UpdateAllSignVirtCoords(void);
tron@1977: void PlaceProc_Sign(TileIndex tile);
truelight@988: 
truelight@988: /* misc.c */
tron@2116: void ShowRenameSignWindow(const SignStruct *ss);
truelight@988: 
truelight@988: #endif /* SIGNS_H */