27 typedef struct trans
{
30 struct trans
*next_rel
;
40 typedef enum { LEFT
, UP
, RIGHT
, DOWN
} direction
;
42 state
*encode_screen(sokoban_screen
*screen
);
43 rels
*encode_rel(sokoban_screen
*screen
);
44 state
*encode_goal(sokoban_screen
*screen
);