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#include "osl/record/record.h"
#include "osl/record/compactBoard.h"
#include "osl/misc/base64.h"
#include <boost/dynamic_bitset.hpp>
#include <boost/foreach.hpp>
#include <iostream>
#include <algorithm>
#include <sstream>
int osl::record::
OPiece::position2Bits(const Square& pos)
{
return pos.isPieceStand() ? 0 : pos.x() << 4 | pos.y(); // 8 bits
}
osl::Square osl::record::
OPiece::bits2Square(const int bit_position)
{
if ((bit_position & 0xff) == 0)
return Square::STAND();
else
return Square((bit_position >> 4) & 0xf, bit_position & 0xf);
}
namespace osl
{
namespace record
{
struct opiece_sort
{
bool operator()(const OPiece& l, const OPiece& r)
{
// need to special case pieces on stand
if (l.getSquare() == Square::STAND() || r.getSquare() == Square::STAND())
{
if (l.getSquare() == Square::STAND() && r.getSquare() != Square::STAND())
return true;
else if (l.getSquare() != Square::STAND() && r.getSquare() == Square::STAND())
return false;
else
{
if (l.getOwner() != r.getOwner())
return l.getOwner() == WHITE;
return l.getPtype() < r.getPtype();
}
}
else
{
if (l.getSquare().x() < r.getSquare().x())
return true;
else if (l.getSquare().x() > r.getSquare().x())
return false;
else
{
if (l.getSquare().y() <= r.getSquare().y())
return true;
else
return false;
}
}
}
};
}
}
osl::record::
CompactBoard::CompactBoard(const SimpleState& state)
{
pieces.reserve(40);
for (int i = 0; i < 40; i++)
{
if(state.usedMask().test(i))
pieces.push_back(OPiece(state.pieceOf(i)));
}
std::sort(pieces.begin(), pieces.end(), opiece_sort());
player_to_move = state.turn();
}
osl::SimpleState osl::record::
CompactBoard::getState() const
{
SimpleState state;
state.init();
BOOST_FOREACH(const OPiece& p, pieces) {
state.setPiece(p.getOwner(), p.getSquare(), p.getPtype());
}
state.setTurn(turn());
state.initPawnMask();
return state;
}
bool osl::record::
operator==(const CompactBoard& lhs, const CompactBoard& rhs)
{
return (lhs.turn() == rhs.turn()) && (lhs.pieces == rhs.pieces);
}
std::ostream& osl::record::
operator<<(std::ostream& os, const CompactBoard& c)
{
for (unsigned int i = 0; i < c.pieces.size(); i++)
{
writeInt(os, static_cast<int>(c.pieces[i]));
}
writeInt(os, static_cast<int>(c.turn()));
return os;
}
std::istream& osl::record::
operator>>(std::istream& is, CompactBoard& c)
{
assert(c.pieces.size() == 0);
for (unsigned int i = 0; i < 40; i++)
{
c.pieces.push_back(OPiece(readInt(is)));
}
c.player_to_move = static_cast<Player>(readInt(is));
return is;
}
#ifndef MINIMAL
std::string osl::record::
CompactBoard::toBase64() const
{
const static size_t ninteger = 41;
const static size_t integer_size = 32;
const static size_t size = ninteger*integer_size;
std::stringstream ss;
ss << *this;
ss.clear();
ss.seekg(0, std::ios::beg);
boost::dynamic_bitset<> bits(size);
for (size_t i = 0; i < ninteger; ++i)
{
const unsigned int tmp = static_cast<unsigned int>(readInt(ss));
const boost::dynamic_bitset<> mask(size, static_cast<unsigned long>(tmp));
bits = (bits << integer_size) | mask;
}
return misc::base64Encode(bits);
}
const osl::record::CompactBoard osl::record::
CompactBoard::fromBase64(const std::string& str)
{
const boost::dynamic_bitset<> bits = misc::base64Decode(str);
std::stringstream ss;
assert(bits.size()%32 == 0);
const boost::dynamic_bitset<> mask(bits.size(), 4294967295ul);
for (size_t i=0; i<bits.size()/32; ++i)
{
const unsigned long tmp = ((bits >> ((bits.size()/32-1-i)*32)) & mask).to_ulong();
writeInt(ss, static_cast<int>(tmp));
}
ss.clear();
ss.seekg(0, std::ios::beg);
CompactBoard cb;
ss >> cb;
return cb;
}
#endif
/* ------------------------------------------------------------------------- */
// ;;; Local Variables:
// ;;; mode:c++
// ;;; c-basic-offset:2
// ;;; End:
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