MinimizeN.h

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// Honeycomb, Copyright (C) 2015 NewGamePlus Inc.  Distributed under the Boost Software License v1.0.
#pragma once

#include "Honey/Math/NumAnalysis/Minimize.h"

namespace honey
{

template<class Real, int Dim>
class MinimizeN
{
    typedef typename Numeral<Real>::Real_   Real_;
    typedef Alge_<Real>                     Alge;

public:
    typedef Vec<Dim, Real>          Vec;
    typedef function<Real (Vec)>    Func;

    static const int dim = Dim;

    MinimizeN(Real tol = Real_::zeroTol, int iterMax = 30, int levelMax = 30, int bracketMax = 30)
        : _tol(tol), _iterMax(iterMax), _minimize(tol, levelMax, bracketMax) {}


    tuple<Vec,Real> calc(const Func& func, const Vec& min, const Vec& max, const Vec& init);

private:
    // Algorithm is adapted from the Wild Magic lib
    

    static tuple<Real, Real> calcDomain(const Vec& v, const Vec& dir, const Vec& min, const Vec& max);

    Real _tol;
    int _iterMax;
    Minimize<Real> _minimize;
};

extern template class MinimizeN<Float, 2>;
extern template class MinimizeN<Float, 3>;
extern template class MinimizeN<Double, 2>;
extern template class MinimizeN<Double, 3>;

}