[xiph-commits] r17678 - trunk/squishyball

[xiphmont at svn.xiph.org]

Author: xiphmont
Date: 2010-11-29 06:34:48 -0800 (Mon, 29 Nov 2010)
New Revision: 17678

Modified:
   trunk/squishyball/main.c
Log:
Fix the XXY randomization


Modified: trunk/squishyball/main.c
===================================================================
--- trunk/squishyball/main.c	2010-11-29 02:22:39 UTC (rev 17677)
+++ trunk/squishyball/main.c	2010-11-29 14:34:48 UTC (rev 17678)
@@ -191,14 +191,16 @@
     *cchoice = 1;
     break;
   case 2:
-    r[0] = random()&1;
-    r[1] = random()&1;
-    if(r[0] == r[1])
-      r[2]=1-r[0];
-    else
-      r[2] = random()&1;
+    r[0] = r[1] = r[2] = 0;
+    r[random()%3] = 1;
+    if (random()&1)
+    {
+      r[0] = 1-r[0];
+      r[1] = 1-r[1];
+      r[2] = 1-r[2];
+    }
+    *cchoice = (r[0]==r[1] ? 2 : (r[1]==r[2] ? 0 : 1));
     break;
-    *cchoice = (r[0]==r[1] ? 2 : (r[1]==r[2] ? 0 : 1));
   }
 }