mirror of
git://git.savannah.nongnu.org/eliot.git
synced 2024-11-17 07:48:27 +01:00
84 lines
2.6 KiB
C++
84 lines
2.6 KiB
C++
/*****************************************************************************
|
|
* Eliot
|
|
* Copyright (C) 2005-2007 Olivier Teulière
|
|
* Authors: Olivier Teulière <ipkiss @@ gmail.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*****************************************************************************/
|
|
|
|
#include "tile.h"
|
|
#include "rack.h"
|
|
#include "pldrack.h"
|
|
#include "round.h"
|
|
#include "move.h"
|
|
#include "results.h"
|
|
#include "board.h"
|
|
#include "ai_percent.h"
|
|
|
|
|
|
AIPercent::AIPercent(float iPercent)
|
|
: m_percent(iPercent)
|
|
{
|
|
// Ensure the decimal value of the percentage is between 0 and 1
|
|
if (m_percent < 0)
|
|
m_percent = 0;
|
|
if (m_percent > 1)
|
|
m_percent = 1;
|
|
}
|
|
|
|
|
|
void AIPercent::compute(const Dictionary &iDic, const Board &iBoard, bool iFirstWord)
|
|
{
|
|
m_results.clear();
|
|
|
|
Rack rack;
|
|
getCurrentRack().getRack(rack);
|
|
m_results.search(iDic, iBoard, rack, iFirstWord);
|
|
}
|
|
|
|
|
|
Move AIPercent::getMove() const
|
|
{
|
|
if (m_results.size() == 0)
|
|
{
|
|
// If there is no result, pass the turn.
|
|
// XXX: it is forbidden in duplicate mode (even passing is forbidden),
|
|
// but well, what else to do?
|
|
return Move(L"");
|
|
}
|
|
else
|
|
{
|
|
// If there are results, apply the algorithm
|
|
double wantedScore = m_percent * m_results.get(0).getPoints();
|
|
// Look for the first round giving at least 'wantedScore' points
|
|
// Browse the results 10 by 10 (a dichotomy would be better, but this
|
|
// is not performance critical)
|
|
unsigned int index = 0;
|
|
while (index < m_results.size() &&
|
|
m_results.get(index).getPoints() > wantedScore)
|
|
{
|
|
index += 10;
|
|
}
|
|
// Now the wanted round is in the last 10 indices
|
|
if (index >= m_results.size())
|
|
index = m_results.size() - 1;
|
|
while (m_results.get(index).getPoints() < wantedScore)
|
|
{
|
|
--index;
|
|
}
|
|
return Move(m_results.get(index));
|
|
}
|
|
}
|
|
|