KUDr@3900: /* $Id$ */
KUDr@3900: 
KUDr@3900: #ifndef  TRACK_DIR_HPP
KUDr@3900: #define  TRACK_DIR_HPP
KUDr@3900: 
KUDr@3900: EXTERN_C_BEGIN
KUDr@3900: #include "../tile.h"
KUDr@3900: #include "../openttd.h"
KUDr@3900: #include "../map.h"
KUDr@3900: #include "../rail.h"
KUDr@3900: EXTERN_C_END
KUDr@3900: 
KUDr@3900: /** Helpers to allow to work with enum as with type safe bit set in C++ */
KUDr@3900: #define DECLARE_ENUM_AS_BIT_MASK(mask_t) \
KUDr@3900: 	FORCEINLINE mask_t operator | (mask_t m1, mask_t m2) {return (mask_t)((int)m1 | m2);} \
KUDr@3900: 	FORCEINLINE mask_t operator & (mask_t m1, mask_t m2) {return (mask_t)((int)m1 & m2);} \
KUDr@3900: 	FORCEINLINE mask_t operator ^ (mask_t m1, mask_t m2) {return (mask_t)((int)m1 ^ m2);} \
KUDr@3900: 	FORCEINLINE mask_t& operator |= (mask_t& m1, mask_t m2) {m1 = m1 | m2; return m1;} \
KUDr@3900: 	FORCEINLINE mask_t& operator &= (mask_t& m1, mask_t m2) {m1 = m1 & m2; return m1;} \
KUDr@3900: 	FORCEINLINE mask_t& operator ^= (mask_t& m1, mask_t m2) {m1 = m1 ^ m2; return m1;} \
KUDr@3900: 	FORCEINLINE mask_t operator ~(mask_t m) {return (mask_t)(~(int)m);}
KUDr@3900: 
KUDr@3900: /** probably redundant enum combining operators (as we have conversion functions) */
KUDr@3900: #define DECLARE_ENUM_AS_BIT_INDEX(idx_t, mask_t) \
KUDr@3900: 	FORCEINLINE mask_t operator << (int m, idx_t i) {return (mask_t)(m << (int)i);} \
KUDr@3900: 	FORCEINLINE mask_t operator << (mask_t m, int i) {return (mask_t)(((int)m) << i);} \
KUDr@3900: 	FORCEINLINE mask_t operator >> (mask_t m, int i) {return (mask_t)(((int)m) >> i);}
KUDr@3900: 
tron@5081: DECLARE_ENUM_AS_BIT_MASK(TrackBits)
tron@5081: DECLARE_ENUM_AS_BIT_INDEX(Track, TrackBits)
KUDr@3900: 
tron@5081: DECLARE_ENUM_AS_BIT_MASK(TrackdirBits)
tron@5081: DECLARE_ENUM_AS_BIT_INDEX(Trackdir, TrackdirBits)
KUDr@3900: 
KUDr@3900: #endif /* TRACK_DIR_HPP */