diff options
Diffstat (limited to 'src/map/path.h')
| -rw-r--r-- | src/map/path.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/map/path.h b/src/map/path.h index 138845dc4..83992b546 100644 --- a/src/map/path.h +++ b/src/map/path.h @@ -13,4 +13,16 @@ bool path_search(struct walkpath_data *wpd,int m,int x0,int y0,int x1,int y1,int // tries to find a shootable path bool path_search_long(struct shootpath_data *spd,int m,int x0,int y0,int x1,int y1,cell_t cell); + +// distance related functions +int check_distance(int dx, int dy, int distance); +#define check_distance_bl(bl1, bl2, distance) check_distance((bl1)->x - (bl2)->x, (bl1)->y - (bl2)->y, distance) +#define check_distance_blxy(bl, x1, y1, distance) check_distance((bl)->x-(x1), (bl)->y-(y1), distance) +#define check_distance_xy(x0, y0, x1, y1, distance) check_distance((x0)-(x1), (y0)-(y1), distance) + +unsigned int distance(int dx, int dy); +#define distance_bl(bl1, bl2) distance((bl1)->x - (bl2)->x, (bl1)->y - (bl2)->y) +#define distance_blxy(bl, x1, y1) distance((bl)->x-(x1), (bl)->y-(y1)) +#define distance_xy(x0, y0, x1, y1) distance((x0)-(x1), (y0)-(y1)) + #endif /* _PATH_H_ */ |