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/* $Id$ */

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#ifndef  TRACK_DIR_HPP

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#define  TRACK_DIR_HPP

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EXTERN_C_BEGIN

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#include "../tile.h"

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#include "../openttd.h"

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#include "../map.h"

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#include "../rail.h"

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EXTERN_C_END

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/** Helpers to allow to work with enum as with type safe bit set in C++ */

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#define DECLARE_ENUM_AS_BIT_MASK(mask_t) \

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	FORCEINLINE mask_t operator | (mask_t m1, mask_t m2) {return (mask_t)((int)m1 | m2);} \

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	FORCEINLINE mask_t operator & (mask_t m1, mask_t m2) {return (mask_t)((int)m1 & m2);} \

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	FORCEINLINE mask_t operator ^ (mask_t m1, mask_t m2) {return (mask_t)((int)m1 ^ m2);} \

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	FORCEINLINE mask_t& operator |= (mask_t& m1, mask_t m2) {m1 = m1 | m2; return m1;} \

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	FORCEINLINE mask_t& operator &= (mask_t& m1, mask_t m2) {m1 = m1 & m2; return m1;} \

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	FORCEINLINE mask_t& operator ^= (mask_t& m1, mask_t m2) {m1 = m1 ^ m2; return m1;} \

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	FORCEINLINE mask_t operator ~(mask_t m) {return (mask_t)(~(int)m);}

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/** probably redundant enum combining operators (as we have conversion functions) */

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#define DECLARE_ENUM_AS_BIT_INDEX(idx_t, mask_t) \

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	FORCEINLINE mask_t operator << (int m, idx_t i) {return (mask_t)(m << (int)i);} \

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	FORCEINLINE mask_t operator << (mask_t m, int i) {return (mask_t)(((int)m) << i);} \

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	FORCEINLINE mask_t operator >> (mask_t m, int i) {return (mask_t)(((int)m) >> i);}

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#endif /* TRACK_DIR_HPP */