ftp://ftp.jp.xemacs.org/pub/NetBSD/packages/distfiles/xscreensaver-4.15.tar.gz

[xscreensaver] / hacks / epicycle.c

diff --git a/hacks/epicycle.c b/hacks/epicycle.c
index b812e6ae38968adb6e036c9b8aed8d5e8e43c294..01e88d381e3342e594bd077886483d938ec1dca3 100644 (file)
--- a/hacks/epicycle.c
+++ b/hacks/epicycle.c
@@ -266,7 +266,10 @@ new_circle_chain(void)
   
   /* There are between minCircles and maxCircles in each figure.
    */
-  n = minCircles + rand() % (maxCircles - minCircles);
+  if (maxCircles == minCircles)
+    n = minCircles;            /* Avoid division by zero. */
+  else
+    n = minCircles + random() % (maxCircles - minCircles);
   
   head = NULL;
   while (n--)
@@ -584,11 +587,9 @@ setup(void)
     }
   else
     {
-      XWindowAttributes xgwa;
       XGetWindowAttributes (dpy, window, &xgwa);
       XSelectInput (dpy, window,
-                    xgwa.your_event_mask | ExposureMask |
-                    ButtonPressMask |StructureNotifyMask);
+                    xgwa.your_event_mask | ExposureMask | ButtonPressMask);
     }
   
 }