// is a number starting at between 0 and 50 and counting backward.
float life; // When reduced to 0, set active = 0
};
-struct spacedot {
- // Space dots are harmless background items
- // All are active. When one falls off the edge, another is created at the start.
- float x,y,z;
- Uint16 color;
-};
// ************************************* VARS
// SDL_Surface global variables
// Structure global variables
extern struct enginedots edot[MAXENGINEDOTS], *dotptr;
extern struct bangdots bdot[MAXBANGDOTS], *bdotptr;
-extern struct spacedot sdot[MAXSPACEDOTS];
// Other global variables
extern char topline[1024];
extern char *initerror;
extern struct shape shipshape;
-extern float shipx,shipy; // X position, 0..XSIZE
-extern float shipdx,shipdy; // Change in X position per tick.
+extern float shipx,shipy; // ship position on screen
+extern float shipdx,shipdy; // ship speed (pixels/tick)
extern float screendx, screendy;
extern float xscroll, yscroll;
extern float yscroll;
extern float scrollvel;
-// all movement is based on s_frame.
+// All movement is based on t_frame.
+// All speeds are pixels/tick, with 20 ticks per second.
extern float t_frame; // length of this frame (in ticks = 1/20th second)
-extern float s_frame; // length of this frame (seconds)
-extern int ms_frame; // length of this frame (milliseconds)
-extern int ms_end; // end of this frame (milliseconds)
extern int nships,score;
-extern int gameover;
-extern int maneuver;
extern float fadetimer, faderate;
extern int pausedown, paused;