added range check for checking sound and music loops

[rocksndiamonds.git] / src / main.h

diff --git a/src/main.h b/src/main.h
index 5ff5558a5696dde185ebf84fe9ee526c0093b87b..3a3dc8af4f85483bde79a439986a41589006753c 100644 (file)
--- a/src/main.h
+++ b/src/main.h
@@ -932,8 +932,8 @@
 #define IS_NEW_FRAME(f, g)     (IS_ANIMATED(g) && IS_NEW_DELAY(f, g))
 #define IS_NEXT_FRAME(f, g)    (IS_NEW_FRAME(f, g) && (f) > 0)
 
-#define IS_LOOP_SOUND(s)       (sound_info[s].loop)
-#define IS_LOOP_MUSIC(s)       (music_info[s].loop)
+#define IS_LOOP_SOUND(s)       ((s) >= 0 && sound_info[s].loop)
+#define IS_LOOP_MUSIC(s)       ((s) <  0 || music_info[s].loop)
 
 #define IS_SPECIAL_GFX_ARG(a)  ((a) >= 0 && (a) < NUM_SPECIAL_GFX_ARGS)