connectboard.h

/*
    This file is part of Cute Chess.
    Copyright (C) 2008-2018 Cute Chess authors

    Cute Chess 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 3 of the License, or
    (at your option) any later version.

    Cute Chess 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 Cute Chess.  If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef CONNECTBOARD_H
#define CONNECTBOARD_H

#include "westernboard.h"

namespace Chess {

class LIB_EXPORT ConnectBoard : public WesternBoard
{
    public:
        ConnectBoard();

        // Inherited from WesternBoard
        virtual Board* copy() const;
        virtual QString variant() const;
        virtual QString defaultFenString() const;
        virtual bool variantHasDrops() const;
        virtual QList<Chess::Piece> reservePieceTypes() const;
        virtual int width() const;
        virtual int height() const;
        virtual Result result();

    protected:
        virtual bool hasGravity() const;
        virtual int connectToWin() const;
        virtual int requiredNumberOfPieces() const;
        virtual bool overlinesWin(Side side) const;

        // Inherited from WesternBoard
        virtual void vInitialize();
        virtual bool vSetFenString(const QStringList & fen);
        bool kingsCountAssertion(int, int) const;
        virtual void generateMovesForPiece(QVarLengthArray<Chess::Move> & moves,
                           int pieceType,
                           int square) const;
        virtual void vMakeMove(const Chess::Move & move,
                       Chess::BoardTransition * transition);
        virtual void vUndoMove(const Chess::Move & move);
        virtual bool isLegalPosition();

    private:
        bool pieceCountOk() const;
        bool connected(int n, Side side) const;

        int m_hasGravity;
        int m_connectToWin;
        QVector<int> m_pieceCounter;
};

class LIB_EXPORT TicTacToeBoard : public ConnectBoard
{
    public:
        TicTacToeBoard();

        // Inherited from ConnectBoard
        virtual Board* copy() const;
        virtual QString variant() const;
        virtual QString defaultFenString() const;
        virtual int width() const;
        virtual int height() const;
        virtual int connectToWin() const;

    protected:
        virtual bool hasGravity() const;
};

//TODO: Black begins, One ply per move, starting phase
class LIB_EXPORT GomokuFreestyleBoard : public ConnectBoard
{
    public:
        GomokuFreestyleBoard();

        // Inherited from ConnectBoard
        virtual Board* copy() const;
        virtual QString variant() const;
        virtual QString defaultFenString() const;
        virtual int width() const;
        virtual int height() const;
        virtual int connectToWin() const;

    protected:
        virtual bool hasGravity() const;
};

class LIB_EXPORT GomokuBoard : public GomokuFreestyleBoard
{
    public:
        GomokuBoard();

        // Inherited from GomokuBoard
        virtual Board* copy() const;
        virtual QString variant() const;

    protected:
        virtual bool overlinesWin(Side side) const;
};
}// namespace Chess
#endif // CONNECTBOARD_H