road.h
author tron
Sat, 15 Jul 2006 09:29:39 +0000
changeset 4140 1765a8dd17dc
parent 3900 2c84ed52709d
child 4666 172a0cdf28a6
permissions -rw-r--r--
(svn r5500) Undo r4597, because it breaks the intended change of r5315 to prohibit building rails on a road tile while road works are in progress
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/* $Id$ */
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#ifndef ROAD_H
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#define ROAD_H
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typedef enum RoadBits {
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	ROAD_NW  = 1U,
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	ROAD_SW  = 2U,
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	ROAD_SE  = 4U,
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	ROAD_NE  = 8U,
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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 ComplementRoadBits(RoadBits r)
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{
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	return (RoadBits)(ROAD_ALL ^ r);
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}
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static inline RoadBits DiagDirToRoadBits(DiagDirection d)
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{
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	return (RoadBits)(1U << (3 ^ d));
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}
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#endif