(svn r6139) -Codechange: strings are StringID. This should be changed in strings.h as well, but you would need to include openttd.h and that opens a whole new can of worms.
/* $Id$ */
#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