rnd-20050314-1-src

[rocksndiamonds.git] / src / game_em / display.h

diff --git a/src/game_em/display.h b/src/game_em/display.h
index 70728a7e3ff84593b4e19e394d4e0856c4658f42..f6a82af453c8a13991d8dd0b85a5331b8fa2cb8f 100644 (file)
--- a/src/game_em/display.h
+++ b/src/game_em/display.h
@@ -41,8 +41,23 @@
 #define SXSIZE                 (SCR_FIELDX * TILEX)
 #define SYSIZE                 (SCR_FIELDY * TILEY)
 
-#define DISPLAY_TIME(x)                (((x) * 8 + 49) / 50)
+#if 1
+#define FRAMES_PER_SECOND      50
+
+#define ROUNDED_DIVIDE(x, y)   (((x) + (y) - 1) / (y))
+
+#define SECONDS_TO_FRAMES(x)   ((x) * FRAMES_PER_SECOND)
+#define FRAMES_TO_SECONDS(x)   ((x) / FRAMES_PER_SECOND)
+
+#define SECONDS_TO_CYCLES(x)   ROUNDED_DIVIDE((x) * FRAMES_PER_SECOND, 8)
+#define CYCLES_TO_SECONDS(x)   ROUNDED_DIVIDE((x) * 8, FRAMES_PER_SECOND)
 
+#define DISPLAY_TIME(x)                ROUNDED_DIVIDE(x, FRAMES_PER_SECOND)
+
+#else
+
+#define DISPLAY_TIME(x)                (((x) * 8 + 49) / 50)
+#endif
 
 extern Bitmap *screenBitmap;
 extern Bitmap *scoreBitmap;