cpp/openttd-patchpack/source Files · road.h

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Location: cpp/openttd-patchpack/source/road.h

r4892:97108ae9f4b4 446 B text/x-c Show Annotation Show as Raw Download as Raw

peter1138

(svn r6836) - Codechange: constify SpriteGroup references. These used to be non-const when we kept a reference count, which we don't do anymore.

/* $Id$ */

#ifndef ROAD_H
#define ROAD_H

typedef enum RoadBits {
	ROAD_NW  = 1U,
	ROAD_SW  = 2U,
	ROAD_SE  = 4U,
	ROAD_NE  = 8U,
	ROAD_X   = ROAD_SW | ROAD_NE,
	ROAD_Y   = ROAD_NW | ROAD_SE,
	ROAD_ALL = ROAD_X  | ROAD_Y
} RoadBits;

static inline RoadBits ComplementRoadBits(RoadBits r)
{
	return (RoadBits)(ROAD_ALL ^ r);
}

static inline RoadBits DiagDirToRoadBits(DiagDirection d)
{
	return (RoadBits)(1U << (3 ^ d));
}

#endif /* ROAD_H */