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//----------------------------------------------------------------------------

/** @file RlState.cpp

    See RlState.h

*/

//----------------------------------------------------------------------------



#include "SgSystem.h"

#include "RlState.h"



using namespace std;



//----------------------------------------------------------------------------



RlState::RlState()

:   m_timestep(-1),

    m_colour(SG_EMPTY),

    m_move(SG_NULLMOVE),

    m_policyType(POL_NONE),

    m_evaluated(false),

    m_activeSet(false),

    m_terminal(false)

{

    ClearBest();

}



RlState::RlState(int timestep, SgBlackWhite colour)

:   m_timestep(timestep),

    m_colour(colour),

    m_move(SG_NULLMOVE),

    m_policyType(POL_NONE),

    m_evaluated(false),

    m_activeSet(false),

    m_terminal(false)

{

    ClearBest();

}



void RlState::Resize(int activesize)

{

    m_active.Resize(activesize);

}



inline void RlState::ClearBest()

{

    // @todo: not strictly necessary, but makes debugging clearer

    m_bestMove = SG_NULLMOVE;

    m_bestEval = 0;

}



bool RlState::OnPolicy() const

{

    switch (m_policyType)

    {

    case POL_ON:

        return true;

    case POL_OFF:

        return false;

    case POL_BEST:

        return m_move == m_bestMove;

    case POL_TERMINAL:

        return true;

    default:

        return true;

    }

}



void RlState::CopyBest(const RlState& sourcestate)

{

    m_bestMove = sourcestate.m_bestMove;

    m_bestEval = sourcestate.m_bestEval;

}



//----------------------------------------------------------------------------