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;
extern float shipdx,shipdy; // Change in X position per tick.
extern float screendx, screendy;
extern float xscroll, yscroll;
-extern float gamerate; // this controls the speed of everything that moves.
+extern float framelen; // this controls the speed of everything that moves.
extern float yscroll;
extern float scrollvel;