VCMiai.hpp

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//----------------------------------------------------------------------------
/** @file VCMiai.hpp
 */
//----------------------------------------------------------------------------

#ifndef VCMIAI_HPP
#define VCMIAI_HPP

#include "Hex.hpp"

_BEGIN_BENZENE_NAMESPACE_

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

typedef unsigned short VCMiai;

static const VCMiai NO_MIAI = FIRST_INVALID * FIRST_INVALID;

namespace VCMiaiUtil
{
    VCMiai Get(HexPoint x, HexPoint y);

    HexPoint First(const VCMiai& miai);

    HexPoint Second(const VCMiai& miai);
}

inline VCMiai Get(HexPoint x, HexPoint y)
{
    return x * FIRST_INVALID + y;
}

inline HexPoint First(const VCMiai& miai)
{
    return static_cast<HexPoint>(miai / FIRST_INVALID);
}

inline HexPoint Second(const VCMiai& miai)
{
    return static_cast<HexPoint>(miai % FIRST_INVALID);
}

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

#define NUM_MIAI 4

class VCMiaiList
{
public:
    VCMiaiList();

    VCMiai operator[](int index) const;

private:
    VCMiai m_miai[NUM_MIAI];
};

inline VCMiaiList::VCMiaiList()
{
    for (int i = 0; i < NUM_MIAI; ++i)
        m_miai[i] = NO_MIAI;
}

inline VCMiai VCMiaiList::operator[](int index) const
{
    if (index < 0 || index >= NUM_MIAI)
        return NO_MIAI;
    return m_miai[index];
}

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

_END_BENZENE_NAMESPACE_

#endif  // VCMIAI_HPP