/*
 *  AttractorKernel.cpp
 *  AwesomeAttractor
 *
 *  Created by Joshua Moerman on 07-08-10.
 *  Copyright 2010 Rodo. All rights reserved.
 *
 */

#include "AttractorKernel.hpp"
#include <algorithm>
#include <iostream>

#pragma mark -
#pragma mark memory

AttractorKernel::AttractorKernel(const unsigned int dimension, const unsigned int numberOfParameters) :
numberOfParameters(numberOfParameters), dimension(dimension){
	
	try {
		allocate();
	}
	catch (std::exception& e) {
		std::cout << "Couldn't construct AttractorKernel: " << e.what() << std::endl;
		dealloc();
	}
	
	std::fill_n(parameters, numberOfParameters, 0.0);
	std::fill_n(vectorNew, dimension, 0.0);
	std::fill_n(vectorOld, dimension, 0.0);

}

AttractorKernel::~AttractorKernel(){
	dealloc();
}

void AttractorKernel::allocate(){
	parameters = new double[numberOfParameters];
	vectorNew = new double[dimension];
	vectorOld = new double[dimension];
}

void AttractorKernel::dealloc(){
	delete[] vectorOld;
	vectorOld = NULL;
	delete[] vectorNew;
	vectorNew = NULL;
	delete[] parameters;
	parameters = NULL;
}

#pragma mark -
#pragma mark parameters

// NOTE: inlining these functions (with the keyword inline) improves performance by at most 1% (tested)

double & AttractorKernel::operator[](const unsigned int index){
	return parameters[index];
}

double const & AttractorKernel::operator[](const unsigned int index) const{
	return parameters[index];
}

unsigned int AttractorKernel::getNumberOfParameters() const{
	return numberOfParameters;
}

#pragma mark -
#pragma mark vector

double const * AttractorKernel::vector() const{
	return vectorNew;
}

double const * AttractorKernel::previousVector() const{
	return vectorOld;
}

unsigned int AttractorKernel::getDimension() const{
	return dimension;
}