From 8a0d33b5ebb3497d158f2d5c050c69be3fcd1e0d Mon Sep 17 00:00:00 2001
From: Mike Buland <mike@xagasoft.com>
Date: Sun, 5 Aug 2012 01:26:45 -0600
Subject: Added option to recalculate survivors.

This accomidates simulations where the test conditions can change as the
simulation runs, which would effect the scores of phenotypes that have
already been tested.
---
 src/explicitsimulation.cpp | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

(limited to 'src/explicitsimulation.cpp')

diff --git a/src/explicitsimulation.cpp b/src/explicitsimulation.cpp
index 98df0b0..95b721b 100644
--- a/src/explicitsimulation.cpp
+++ b/src/explicitsimulation.cpp
@@ -13,12 +13,13 @@ using namespace Bu;
 
 Genetic::ExplicitSimulation::ExplicitSimulation( Genetic::Operator *pOper,
 		Genetic::FitnessFunction *pFunc, int iThreads, int iPopSize,
-		float fKeep, float fRandom, bool bKeepBest ) :
+		float fKeep, float fRandom, bool bKeepBest, bool bRecalcSurvivors ) :
 	pOper( pOper ),
 	iPopSize( iPopSize ),
 	fKeep( fKeep ),
 	fRandom( fRandom ),
 	bKeepBest( bKeepBest ),
+	bRecalcSurvivors( bRecalcSurvivors ),
 	bRunning( true )
 {
 	for( int j = 0; j < iPopSize; j++ )
@@ -102,7 +103,10 @@ void Genetic::ExplicitSimulation::timestep()
 
 	// Refill the population
 	mFitness.lock();
-	hFitness = hTempFitness;
+	if( bRecalcSurvivors )
+		hFitness.clear();
+	else
+		hFitness = hTempFitness;
 	mFitness.unlock();
 	xPop.clear();
 	xPop.timestep();
-- 
cgit v1.2.3