position.h

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#ifndef CHESS_POSITION_H_INCLUDED
#define CHESS_POSITION_H_INCLUDED
 
#ifdef __cplusplus
extern "C" {
#endif
 
#include <chess/castling_rights.h>
#include <chess/color.h>
#include <chess/piece.h>
#include <chess/position_counter.h>
#include <chess/square.h>
 
#if !defined(__STDC_VERSION__) || __STDC_VERSION__ < 202311L
  #include <stdbool.h>
#endif
#include <stdint.h>
 
typedef struct ChessPosition {
  ChessPiece board[128];                           
  ChessColor side_to_move;                         
  ChessCastlingRights castling_rights;             
  ChessSquare en_passant_square;                   
  unsigned int half_move_clock;                    
  unsigned int full_move_number;                   
  ChessSquare king_squares[CHESS_COLOR_BLACK + 1]; 
  ChessPositionCounter position_counter;           
} ChessPosition;
 
void chess_position_debug(const ChessPosition *position);
 
bool chess_position_is_valid(const ChessPosition *position);
 
ChessPosition chess_position_new(void);
 
void chess_position_drop(ChessPosition *position);
 
ChessPiece chess_position_piece_at_square(const ChessPosition *position, ChessSquare square);
 
ChessColor chess_position_side_to_move(const ChessPosition *position);
 
size_t chess_position_from_fen(ChessPosition *position, const char *string);
 
size_t chess_position_to_fen(const ChessPosition *position, char *string, size_t string_size);
 
bool chess_position_is_check(const ChessPosition *position);
 
bool chess_position_is_checkmate(const ChessPosition *position);
 
bool chess_position_is_stalemate(const ChessPosition *position);
 
bool chess_position_is_fifty_move_rule(const ChessPosition *position);
 
bool chess_position_is_threefold_repetition(const ChessPosition *position);
 
bool chess_position_is_insufficient_material(const ChessPosition *position);
 
uint64_t chess_position_hash(const ChessPosition *position);
 
#ifdef __cplusplus
}
#endif
 
#endif // CHESS_POSITION_H_INCLUDED