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/* $Id$ */

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#ifndef ROAD_H

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#define ROAD_H

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#include "macros.h"

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typedef enum RoadBits {

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	ROAD_NW  = 1,

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	ROAD_SW  = 2,

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	ROAD_SE  = 4,

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	ROAD_NE  = 8,

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	ROAD_X   = ROAD_SW | ROAD_NE,

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	ROAD_Y   = ROAD_NW | ROAD_SE,

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	ROAD_ALL = ROAD_X  | ROAD_Y

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} RoadBits;

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static inline RoadBits GetRoadBits(TileIndex tile)

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{

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	return GB(_m[tile].m5, 0, 4);

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}

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static inline RoadBits GetCrossingRoadBits(TileIndex tile)

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{

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	return _m[tile].m5 & 8 ? ROAD_Y : ROAD_X;

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}

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typedef enum RoadType {

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	ROAD_NORMAL,

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	ROAD_CROSSING,

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	ROAD_DEPOT

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} RoadType;

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static inline RoadType GetRoadType(TileIndex tile)

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{

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	return GB(_m[tile].m5, 4, 4);

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}

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#endif