ref: 154c63ab6892df6fc66663d8c7c9f71b4bbc4d9f
dir: /path/dat.h/
typedef struct Vertex Vertex;
typedef struct Node Node;
struct Vertex{
int x;
int y;
};
struct Node{
int blocked;
};
extern Node *map;
extern int mapwidth, mapheight;
extern Node *selected;