Added seed parameter to constructor of two PRNGs. Also fixed horrible mistake

in RandomBasic.

1 files changed, 14 insertions, 2 deletions

diff --git a/src/stable/randombasic.h b/src/stable/randombasic.h
index 4d1c2f8..c9b7072 100644
--- a/src/stable/randombasic.h
+++ b/src/stable/randombasic.h
@@ -11,10 +11,22 @@
 
 namespace Bu
 {
+    /**
+     * Basic Linear Congruential Generator.  This is one of the simplest and
+     * most common pseudo-random number generators out there.  It's simple,
+     * fast, and does a decent job if you don't have any stastistical
+     * requirements other than "random looking."  This is the algorithm included
+     * as the default random number generator in most standard libraries,
+     * although this one uses larger numbers internally, has a longer period,
+     * and more even distrubition of randomness accross it's bits than most
+     * implementations.
+     *
+     * The base values were published by Donald Knuth.
+     */
     class RandomBasic : public RandomBase
     {
     public:
-        RandomBasic();
+        RandomBasic( int32_t iSeed=0 );
         virtual ~RandomBasic();
 
         virtual void seed( int32_t iSeed );
@@ -22,7 +34,7 @@ namespace Bu
         virtual int32_t rand();
 
     private:
-        int64_t a, c, x;
+        int64_t x;
     };
 };