27 lines
404 B
C
27 lines
404 B
C
/* $Id$ */
|
|
|
|
#ifndef ROAD_H
|
|
#define ROAD_H
|
|
|
|
typedef enum RoadBits {
|
|
ROAD_NW = 1,
|
|
ROAD_SW = 2,
|
|
ROAD_SE = 4,
|
|
ROAD_NE = 8,
|
|
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 ROAD_ALL ^ r;
|
|
}
|
|
|
|
static inline RoadBits DiagDirToRoadBits(DiagDirection d)
|
|
{
|
|
return 1 << (3 ^ d);
|
|
}
|
|
|
|
#endif
|