cake.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 file is dual-licensed.
 * In addition to the GPLv3 license mentioned above, MojoTouch has exclusively licensed
 * this code on November 10th, 2021, to be use in closed-source products.
 * Therefore, any contributions (commits) to it will also be dual-licensed.
 *
 */

#ifndef GROOVIE_LOGIC_CAKE_H
#define GROOVIE_LOGIC_CAKE_H

#include "common/random.h"
#include "common/system.h"

namespace Groovie {

/*
 * Cake (Connect Four) puzzle in the dining room (tb.grv)
 */
class CakeGame {
public:
    CakeGame(bool easierAi);
    void run(byte *scriptVariables);

private:
    static const int WIDTH = 8;
    static const int HEIGHT = 7;
    static const int GOAL_LEN = 4;
    static const int WIN_SCORE = 1000000;
    static const byte STAUF = 1;
    static const byte PLAYER = 2;
    static const int NUM_LINES = 107;

    Common::RandomSource _random;

    struct LinesMappings {
        byte lengths[WIDTH][HEIGHT];
        byte indecies[WIDTH][HEIGHT][GOAL_LEN * GOAL_LEN];
    };

    struct PlayerProgress {
        int _score;
        int _linesCounters[NUM_LINES];
    };

    PlayerProgress _playerProgress;
    PlayerProgress _staufProgress;

    byte _boardState[WIDTH][HEIGHT];
    byte _columnHeights[WIDTH];

    int _moveCount;
    bool _hasCheated;

    LinesMappings _map;
    bool _easierAi;

    void restart();
    void setLineNum(uint x, uint y, uint index);
    bool isColumnFull(byte column);
    PlayerProgress &getPlayerProgress(bool stauf);
    void updateScores(byte x, bool revert = false);
    void placeBonBon(byte x);
    void revertMove(byte x);
    byte getWinner();
    bool gameEnded();
    int getScoreDiff();
    int aiRecurse(int search_depth, int parent_score);
    byte aiGetBestMove(int search_depth);
    void testCake();
    void runCakeTest(uint seed, const char *moves, bool player_win);
    void runCakeTestNoAi(const char *moves, bool player_win, bool draw);
};

} // End of Groovie namespace

#endif // GROOVIE_LOGIC_CAKE_H