1 files changed, 9 insertions, 10 deletions

diff --git a/src/operatorbasic.cpp b/src/operatorbasic.cpp
index ce37f78..2ac2b0f 100644
--- a/src/operatorbasic.cpp
+++ b/src/operatorbasic.cpp
@@ -28,21 +28,20 @@ Genetic::Phenotype *Genetic::OperatorBasic::mate(
                 const Genetic::PhenotypeList &lParents )
 {
         Genetic::Phenotype *pChild = lParents.first()->makeEmptyOffspring();
-        
+
+        int iBits = lParents.first()->getSize();
         // Right now, we assume both parents have the same amount of "DNA"
-        int iSplitPoint = ((uint32_t)Bu::Random::rand())%lParents.first()->getSize();
+        int iSplitPoint = ((uint32_t)Bu::Random::rand())%iBits;
         pChild->copyFrom( *lParents.first(), 0, iSplitPoint );
-        pChild->copyFrom( *lParents.last(), iSplitPoint,
-                        lParents.last()->getSize()-iSplitPoint );
+        pChild->copyFrom( *lParents.last(), iSplitPoint, iBits-iSplitPoint );
+
+        int iChange = iBits * (Bu::Random::randNorm() * fMutationRate * 1.25);
 
-        // Mutate the child some
-        for( int j = 0; j < pChild->getSize(); j++ )
+        for( int j = 0; j < iChange; j++ )
         {
-                //sio << Bu::Random::randNorm() << sio.nl;
-                if( Bu::Random::randNorm() <= fMutationRate )
-                        pChild->mutate( j, 1.0 );
+                pChild->mutate( Bu::Random::rand( 0, iBits ), 1.0 );
         }
-
+        
         return pChild;
 }