-struct Player {
- struct yx_uint16 pos; };
-
-struct Monster {
- struct Monster * next;
- char name;
- struct yx_uint16 pos; };
-
-uint16_t rrand(char, uint32_t);
-void update_log (struct World *, char *);
-
-struct Map init_map ();
-void map_scroll (struct Map *, char);
+extern uint16_t rrand(char, uint32_t);
+extern void update_log (struct World *, char *);