From d2997d9a5c4b8f155536d8542bf993a5a4157203 Mon Sep 17 00:00:00 2001
From: Mike <Info@MikePeralta.com>
Date: Sat, 14 Apr 2018 06:31:34 -0700
Subject: [PATCH] Enhance fitness differences a bit

---
 RouletteWheel.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/RouletteWheel.cpp b/RouletteWheel.cpp
index bfa0d86..cd18191 100644
--- a/RouletteWheel.cpp
+++ b/RouletteWheel.cpp
@@ -173,6 +173,7 @@ namespace BitEvolver
 			
 			//
 			pair.first = chromosome->GetFitness() - fitness_low;
+			pair.first *= pair.first; //	Square to enhance the difference a little
 			pair.second = chromosome;
 			
 			//
@@ -222,7 +223,9 @@ namespace BitEvolver
 		std::unique_lock<std::recursive_mutex> lock(this->chromosomes_mutex);
 		std::vector<std::pair<double, std::shared_ptr<Chromosome>>> chromosomes_normalized_fitness;
 		std::pair<double,std::shared_ptr<Chromosome>> wheel_slot;
-		double slot_begin_value;
+		double
+			slot_begin_value
+			;
 		
 		//
 		if ( !this->slots_need_population ) {