rules.hpp

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#pragma once
 
#include <cstdint>
#include <optional>
#include "core/board.hpp"
 
class GameRules
{
public:
    explicit GameRules(uint8_t connect_length = 4);
 
    bool checkWin(const Board &board, uint8_t player_id) const;
 
    bool checkDraw(const Board &board) const;
 
    bool isValidMove(const Board &board, uint8_t column) const;
 
    uint8_t getConnectLength() const { return connect_length_; }
 
private:
    uint8_t connect_length_;
 
    bool checkDirection(const Board &board, uint8_t row, uint8_t col,
                        int8_t row_delta, int8_t col_delta, uint8_t player_id) const;
 
    bool checkHorizontal(const Board &board, uint8_t player_id) const;
    bool checkVertical(const Board &board, uint8_t player_id) const;
    bool checkDiagonalDown(const Board &board, uint8_t player_id) const;
    bool checkDiagonalUp(const Board &board, uint8_t player_id) const;
};