nim.h

/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * 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 3 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, see <http://www.gnu.org/licenses/>.
 *
 */

/*
 * This code is based on the original source code of Lord Avalot d'Argent version 1.3.
 * Copyright (c) 1994-1995 Mike, Mark and Thomas Thurman.
 */

#ifndef AVALANCHE_NIM_H
#define AVALANCHE_NIM_H

namespace Avalanche {

class Nim {
public:
    Nim(AvalancheEngine *vm);
    void resetVariables();
    void synchronize(Common::Serializer &sz);
    void playNim();

private:
    AvalancheEngine *_vm;

    static const char * const kNames[2];

    byte _old[3];
    byte _stones[3];
    byte _turns;
    bool _dogfoodsTurn;
    byte _stonesLeft;
    bool _clicked;
    int8 _row;
    byte _number;
    bool _squeak;
    byte _playedNim; // How many times you've played Nim.

    // Inner variables for dogFood(), find() and findAp().
    bool _inAp[3];
    bool _lmo; // Let Me Out!
    byte _r[3];

    void chalk(int x, int y, Common::String text);
    void setup();
    void board();
    void startMove();
    void showChanges();
    void blip();
    void findNextUp(); // Inner function for checkInput().
    void findNextDown(); // Same as above.
    bool checkInput(); // It returns TRUE if the player confirmed his selection of stones either by pressing RETURN or by clicking on a stone.
    void takeSome();
    void endOfGame();
    bool find(byte x); // This gives TRUE if there's a pile with x stones in.
    void findAp(byte start, byte stepSize);
    void dogFood(); // AI procedure to play the game.
};

} // End of namespace Avalanche

#endif // AVALANCHE_NIM_H