#ifndef __GA_FITNESS_COMPARATORS_H__
#define __GA_FITNESS_COMPARATORS_H__

#include "..\CallConvention.h"
#include "GaChromosomeOperations.h"

using namespace Chromosome;

namespace Chromosome
{
	namespace FitnessComparators
	{

		// Used if the fitness value should be minimized
		class GaMinFitnessComparator : public GaFitnessComparator
		{

		public:

			// Compares two fitness values and returns:
			//  a, -1 if the first fitness value lower then the second
			//  b.  0 if the fitness values are equal
			//  c.  1 if the first fitness value is greater then the second
			virtual int GACALL operator ()(float fitness1,
				float fitness2) const;

		};// END CLASS DEFINITION GaMinFitnessComparator

		// Used if the fitness value should be maximized
		class GaMaxFitnessComparator : public GaFitnessComparator
		{

		public:

			// Compares two fitness values and returns:
			//  a, -1 if the first fitness value lower then the second
			//  b.  0 if the fitness values are equal
			//  c.  1 if the first fitness value is greater then the second
			virtual int GACALL operator ()(float fitness1,
				float fitness2) const;

		};// END CLASS DEFINITION GaMaxFitnessComparator

	} // FitnessComparators
} // Chromosome

#endif // __GA_FITNESS_COMPARATORS_H__