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//-----------------------------------------------------------------------------
/** @file libpentobi_mcts/History.cpp
@author Markus Enzenberger
@copyright GNU General Public License version 3 or later */
//-----------------------------------------------------------------------------
#include "History.h"
#include "libpentobi_base/BoardUtil.h"
namespace libpentobi_mcts {
using namespace std;
using libpentobi_base::get_current_position_as_setup;
//-----------------------------------------------------------------------------
void History::get_as_setup(Variant& variant, Setup& setup) const
{
LIBBOARDGAME_ASSERT(is_valid());
variant = m_variant;
auto bd = make_unique<Board>(variant);
for (ColorMove mv : m_moves)
bd->play(mv);
get_current_position_as_setup(*bd, setup);
}
void History::init(const Board& bd, Color to_play)
{
m_is_valid = true;
m_variant = bd.get_variant();
m_nu_colors = bd.get_nu_colors();
m_moves.clear();
for (unsigned i = 0; i < bd.get_nu_moves(); ++i)
m_moves.push_back(bd.get_move(i));
m_to_play = to_play;
}
bool History::is_followup(
const History& other,
ArrayList<Move, SearchParamConst::max_moves>& sequence) const
{
if (! m_is_valid || ! other.m_is_valid || m_variant != other.m_variant
|| m_moves.size() < other.m_moves.size())
return false;
unsigned i = 0;
for ( ; i < other.m_moves.size(); ++i)
if (m_moves[i] != other.m_moves[i])
return false;
sequence.clear();
Color to_play = other.m_to_play;
for ( ; i < m_moves.size(); ++i)
{
auto mv = m_moves[i];
while (mv.color != to_play)
{
sequence.push_back(Move::null());
to_play = to_play.get_next(m_nu_colors);
}
sequence.push_back(mv.move);
to_play = to_play.get_next(m_nu_colors);
}
while (m_to_play != to_play)
{
sequence.push_back(Move::null());
to_play = to_play.get_next(m_nu_colors);
}
return true;
}
//-----------------------------------------------------------------------------
} // namespace libpentobi_mcts
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