mirror of
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308 lines
8 KiB
C++
308 lines
8 KiB
C++
/*****************************************************************************
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* Eliot
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* Copyright (C) 2005-2012 Antoine Fraboulet & Olivier Teulière
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* Authors: Antoine Fraboulet <antoine.fraboulet @@ free.fr>
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* Olivier Teulière <ipkiss @@ gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*****************************************************************************/
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#include <boost/foreach.hpp>
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#include <algorithm>
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#include <functional>
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#include <cwctype>
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#include <cmath>
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#include "tile.h"
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#include "round.h"
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#include "board.h"
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#include "results.h"
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#include "debug.h"
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INIT_LOGGER(game, Results);
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bool tileCompare(const Tile &t1, const Tile &t2)
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{
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return t1.toCode() < t2.toCode();
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}
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struct less_points : public binary_function<const Round&, const Round&, bool>
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{
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bool operator()(const Round &r1, const Round &r2)
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{
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// We want higher scores first, so we use '>' instead of '<'
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if (r1.getPoints() > r2.getPoints())
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return true;
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else if (r1.getPoints() < r2.getPoints())
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return false;
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else
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{
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// If the scores are equal, sort alphabetically (i.e. in the
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// order of the letters in the dictionary), ignoring the case
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const wstring &s1 = r1.getWord();
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const wstring &s2 = r2.getWord();
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if (std::lexicographical_compare(r1.getTiles().begin(),
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r1.getTiles().end(),
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r2.getTiles().begin(),
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r2.getTiles().end(),
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tileCompare))
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{
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return true;;
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}
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else if (std::lexicographical_compare(r2.getTiles().begin(),
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r2.getTiles().end(),
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r1.getTiles().begin(),
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r1.getTiles().end(),
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tileCompare))
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{
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return false;
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}
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else
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{
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// If the rounds are still equal, compare the coordinates
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const wstring &c1 = r1.getCoord().toString();
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const wstring &c2 = r2.getCoord().toString();
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if (c1 < c2)
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return true;
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else if (c2 < c1)
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return false;
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else
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{
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// Still equal? This time compare taking the case into
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// account. After that, we are sure that the rounds will
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// be different...
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return std::lexicographical_compare(s1.begin(),
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s1.end(),
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s2.begin(),
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s2.end());
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}
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}
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}
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}
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};
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const Round & Results::get(unsigned int i) const
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{
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ASSERT(i < size(), "Results index out of bounds");
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return m_rounds[i];
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}
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void Results::sort()
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{
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less_points lp;
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std::sort(m_rounds.begin(), m_rounds.end(), lp);
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}
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BestResults::BestResults()
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: m_bestScore(0)
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{
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}
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void BestResults::search(const Dictionary &iDic, const Board &iBoard,
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const Rack &iRack, bool iFirstWord)
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{
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clear();
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if (iFirstWord)
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iBoard.searchFirst(iDic, iRack, *this);
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else
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iBoard.search(iDic, iRack, *this);
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sort();
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}
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void BestResults::add(const Round &iRound)
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{
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// Ignore too low scores
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if (m_bestScore > iRound.getPoints())
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return;
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if (m_bestScore < iRound.getPoints())
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{
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// New best score: clear the stored results
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m_bestScore = iRound.getPoints();
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m_rounds.clear();
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}
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m_rounds.push_back(iRound);
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}
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void BestResults::clear()
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{
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m_rounds.clear();
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m_bestScore = 0;
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}
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PercentResults::PercentResults(float iPercent)
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: m_percent(iPercent), m_bestScore(0), m_minScore(0)
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{
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}
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class Predicate
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{
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public:
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Predicate(int iPoints) : m_chosenPoints(iPoints) {}
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bool operator()(const Round &iRound) const
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{
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return iRound.getPoints() != m_chosenPoints;
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}
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private:
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const int m_chosenPoints;
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};
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void PercentResults::search(const Dictionary &iDic, const Board &iBoard,
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const Rack &iRack, bool iFirstWord)
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{
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clear();
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if (iFirstWord)
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iBoard.searchFirst(iDic, iRack, *this);
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else
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iBoard.search(iDic, iRack, *this);
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if (m_rounds.empty())
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return;
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// At this point, add() has been called, so the best score is valid
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// Find the lowest score at least equal to the min_score
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int chosenPoints = m_bestScore;
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BOOST_FOREACH(const Round &iRound, m_rounds)
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{
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int points = iRound.getPoints();
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if (points >= m_minScore && points < chosenPoints)
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{
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chosenPoints = points;
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}
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}
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// Keep only the rounds with the "chosenPoints" score
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vector<Round>::iterator last =
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std::remove_if(m_rounds.begin(), m_rounds.end(), Predicate(chosenPoints));
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m_rounds.erase(last, m_rounds.end());
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ASSERT(!m_rounds.empty(), "Bug in PercentResults");
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// Sort the remaining rounds
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sort();
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}
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void PercentResults::add(const Round &iRound)
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{
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// Ignore too low scores
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if (m_minScore > iRound.getPoints())
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return;
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if (m_bestScore < iRound.getPoints())
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{
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m_bestScore = iRound.getPoints();
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m_minScore = lrint(ceil(m_bestScore * m_percent));
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}
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m_rounds.push_back(iRound);
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}
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void PercentResults::clear()
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{
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m_rounds.clear();
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m_bestScore = 0;
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m_minScore = 0;
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}
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LimitResults::LimitResults(int iLimit)
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: m_limit(iLimit), m_total(0), m_minScore(-1)
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{
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}
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void LimitResults::search(const Dictionary &iDic, const Board &iBoard,
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const Rack &iRack, bool iFirstWord)
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{
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clear();
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if (iFirstWord)
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iBoard.searchFirst(iDic, iRack, *this);
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else
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iBoard.search(iDic, iRack, *this);
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if (m_rounds.empty())
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return;
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// Sort the rounds
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sort();
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// Truncate the results to respect the limit
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if (m_limit != 0 && m_rounds.size() > (unsigned int) m_limit)
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m_rounds.resize(m_limit);
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}
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void LimitResults::add(const Round &iRound)
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{
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// If we ignore the limit, simply add the round
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if (m_limit == 0)
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{
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m_rounds.push_back(iRound);
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return;
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}
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// Ignore too low scores
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if (m_minScore >= iRound.getPoints())
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return;
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// Add the round
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m_rounds.push_back(iRound);
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++m_total;
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++m_scoresCount[iRound.getPoints()];
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// Can we increase the minimum score required?
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if (m_total - m_scoresCount[m_minScore] >= m_limit)
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{
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// Yes! "Forget" the rounds of score m_minScore
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// They are still present in m_rounds, but they will be removed
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// for real later in the search() method
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m_total -= m_scoresCount[m_minScore];
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m_scoresCount.erase(m_minScore);
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// Find the new min score
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map<int, int>::const_iterator it =
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m_scoresCount.lower_bound(m_minScore);
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ASSERT(it != m_scoresCount.end(), "Bug in LimitResults::add())");
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m_minScore = it->first;
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}
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}
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void LimitResults::clear()
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{
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m_rounds.clear();
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m_scoresCount.clear();
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m_minScore = -1;
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m_total = 0;
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}
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