-/* Try to grow or shrink the active window horizontally ("change" = "*"/"_") or
- * vertically ("change = "+"/"-") by one cell size, subject to the limitations
- * provided by the window manager via resize_active_win().
- *
- * Return 0 on success, 1 on (ncurses pad/window memory allocation) error.
- */
-extern uint8_t growshrink_active_window(struct WinMeta * win_meta, char change);
+/* Save or load current game data to / from file "savefile". */
+extern void save_game();
+extern void load_game();