extern struct bangdots bdot[MAXBANGDOTS], *bdotptr;
extern struct spacedot sdot[MAXSPACEDOTS];
-// command-line arguments
-extern int opt_fullscreen;
-extern int opt_sound;
-extern int opt_music;
-extern float opt_gamespeed;
-extern int opt_tail_engine;
-extern int opt_friction;
-
// Other global variables
extern char topline[1024];
extern char *initerror;