print total FPS

diff --git a/main.c b/main.c
index f358292..83c032f 100644 (file)
--- a/main.c
+++ b/main.c
@@ -75,6 +75,7 @@ float screendx = SCREENDXMIN, screendy = 0.0;
 float back_dist;
 
 // all movement is based on t_frame.
+unsigned long frames, start, end;
 float t_frame;  // length of this frame (in ticks = 1/20th second)  adjusted for gamespeed
 int ms_frame;   // length of this frame (milliseconds)
 int ms_end;     // end of this frame (milliseconds)
@@ -542,7 +543,7 @@ draw_title_page(void)
 void
 draw(void) {
 
-       SDL_FillRect(surf_screen,NULL,0);  // black background
+       // SDL_FillRect(surf_screen,NULL,0);  // black background
        draw_dots(surf_screen);             // background dots
        draw_sprite(SPRITE(&ship));
        draw_rocks();
@@ -648,6 +649,7 @@ gameloop() {
                ms_frame = SDL_GetTicks() - ms_end;
                ms_end += ms_frame;
                t_frame = opt_gamespeed * ms_frame / 50;
+               frames++;
 
                while(SDL_PollEvent(&e)) {
                        switch(e.type) {
@@ -815,7 +817,11 @@ main(int argc, char **argv) {
                return 1;
        }
 
+       start = SDL_GetTicks();
+       frames = 0;
        gameloop();
+       end = SDL_GetTicks();
+       printf("%ld frames in %ld ms, %.2f fps.\n", frames, end-start, frames * 1000.0 / (end-start));
 
        return 0;
 }