chess_engine.h

#ifndef CHESS_ENGINE_H
#define CHESS_ENGINE_H

// ---------------------------
// Chess Engine Class
// ---------------------------
class ChessEngine {
private:
    // Helper functions for move generation
    void addPawnMoves(const char board[8][8], int row, int col, char pieceColor, int &moveCount, int moves[][2]);
    void addRookMoves(const char board[8][8], int row, int col, char pieceColor, int &moveCount, int moves[][2]);
    void addKnightMoves(const char board[8][8], int row, int col, char pieceColor, int &moveCount, int moves[][2]);
    void addBishopMoves(const char board[8][8], int row, int col, char pieceColor, int &moveCount, int moves[][2]);
    void addQueenMoves(const char board[8][8], int row, int col, char pieceColor, int &moveCount, int moves[][2]);
    void addKingMoves(const char board[8][8], int row, int col, char pieceColor, int &moveCount, int moves[][2]);
    
    bool isSquareOccupiedByOpponent(const char board[8][8], int row, int col, char pieceColor);
    bool isSquareEmpty(const char board[8][8], int row, int col);
    bool isValidSquare(int row, int col);
    char getPieceColor(char piece);

public:
    ChessEngine();
    
    // Main move generation function
    void getPossibleMoves(const char board[8][8], int row, int col, int &moveCount, int moves[][2]);
    
    // Move validation
    bool isValidMove(const char board[8][8], int fromRow, int fromCol, int toRow, int toCol);
    
    // Game state checks
    bool isPawnPromotion(char piece, int targetRow);
    char getPromotedPiece(char piece);
    
    // Utility functions
    void printMove(int fromRow, int fromCol, int toRow, int toCol);
    char algebraicToCol(char file);
    int algebraicToRow(int rank);
};

#endif // CHESS_ENGINE_H