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/* Yo Emacs, this -*- C++ -*-
*******************************************************************
*******************************************************************
*
*
* KREVERSI
*
*
*******************************************************************
*
* A Reversi (or sometimes called Othello) game
*
*******************************************************************
*
* Created 1997 by Mario Weilguni <mweilguni@sime.com>. This file
* is ported from Mats Luthman's <Mats.Luthman@sylog.se> JAVA applet.
* Many thanks to Mr. Luthman who has allowed me to put this port
* under the GNU GPL. Without his wonderful game engine kreversi
* would be just another of those Reversi programs a five year old
* child could beat easily. But with it it's a worthy opponent!
*
* If you are interested on the JAVA applet of Mr. Luthman take a
* look at http://www.sylog.se/~mats/
*
*******************************************************************
*
* This file is part of the KDE project "KREVERSI"
*
* KREVERSI 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, or (at your option)
* any later version.
*
* KREVERSI 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 KREVERSI; see the file COPYING. If not, write to
* the Free Software Foundation, 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*******************************************************************
*/
// The class SuperEngine is a super class for engines that produce moves.
// It implements functionality that move engines have in common, which is
// useful if you want to use several different engines in the same program
// (for instance when you are test playing different strategies against each
// other).
//
// SuperEngine implements:
//
// Random number handling (engines should not play exactly the same games
// repeatedly).
//
// Setting playing strength level.
//
// Functionality for telling the engine to interrupt calculation.
//
// Public and protected functions:
// public SuperEngine(int st)
// Creates an engine playing at level st. All integers greater than 0
// should be possible levels. There need not be any actual difference in
// playing strength between levels, but if there is, higher number should
// mean greater playing strength.
// public SuperEngine(int st, int sd)
// The same as above, but uses sd as the seed for the random generator.
// This means that the engine always behaves in exactly the same way
// (practical when testing).
// public synchronized final void SetInterrupt(boolean intr)
// This function could be called when ComputeMove() (see below) is
// executing. It tells the engine to interrupt calculation as
// soon as possible and return null from ComputeMove().
// protected synchronized final boolean GetInterrupt()
// Returns true when SetInterrupt() has been called. Should be called
// with short intervals from ComputeMove().
// public void SetStrength(int st)
// Sets playing strength level.
// public int GetStrength()
// Gets playing strength level.
// public void SetSeed(int sd)
// Changes the random seed.
// public abstract Move ComputeMove(Game g)
// This function should produce a move. If SetInterrupt() is called
// during its execution it should return null as soon as possible.
// Protected members:
// protected int m_strength
// Is set and read by SetStrength() and GetStrength().
// protected Random m_random
// Could (and should in a good engine) be used to prevent the engine from
// repeating itself, always playing the same moves in the same positions.
// If this is not done, winning once would make it possible to play the
// same moves and win every time against the program.
#ifndef __SUPERENGINE__H__
#define __SUPERENGINE__H__
#include "Game.h"
#include <krandomsequence.h>
class SuperEngine {
public:
SuperEngine(int st);
SuperEngine(int st, int sd);
virtual ~SuperEngine() {}
void setInterrupt(bool intr) { m_interrupt = intr; }
bool interrupted() const { return m_interrupt; }
enum Strength { MinStrength = 1, MaxStrength = 7,
NbStrengths = MaxStrength };
void setStrength(uint st) { m_strength = st; }
uint strength() const { return m_strength; }
void setSeed(int sd);
virtual Move computeMove(Game *game, bool competitive) = 0;
protected:
uint m_strength;
KRandomSequence m_random;
private:
bool m_interrupt;
};
#endif
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