stellar

Start writing UCI commands

4 files changed, 39 insertions(+), 5 deletions(-)

diff --git a/ include/utils.h b/ include/utils.h

@@ -45,6 +45,7 @@ enum enumSquare { typedef enum enumSquare Square; extern const char *square_to_coordinates[];

Square coordinates_to_square(char * cord);

// board moving typedef U64 (*direction_f)(U64);

@@ -72,4 +73,5 @@ int get_time_ms(void); typedef U64 (*attack_f)(Square square, U64 occupancy);

#endif

diff --git a/ src/CBoard.c b/ src/CBoard.c

@@ -258,7 +258,7 @@ CBoard_T CBoard_fromFEN(CBoard_T board, char *fen) { fen++; if (*fen != '-') {

board->enpassant = (*(fen + 1) - '1') * 8 + (*fen - 'a');

board->enpassant = coordinates_to_square(fen);

} return board;

diff --git a/ src/engine.c b/ src/engine.c

@@ -1,3 +1,4 @@

#include <ctype.h>

#include <stdio.h> #include <stdlib.h> #include <string.h>

@@ -100,7 +101,7 @@ MoveList_T generate_moves(CBoard_T cboard, MoveList_T moves) { { // pawn moves Piece_T Piece = Piece_get(PAWN, color); int index = Piece_index(Piece);

U64 bitboard = CBoard_getPieceSet(cboard, Piece);

U64 bitboard = CBoard_pieceSet(cboard, Piece);

bitboard_for_each_bit(src, bitboard) { { // quiet int add = (color == WHITE) ? +8 : -8;

@@ -143,7 +144,7 @@ MoveList_T generate_moves(CBoard_T cboard, MoveList_T moves) { // All piece move for (int piece = 1; piece < 6; piece++) { Piece_T Piece = Piece_get(piece, color);

U64 bitboard = CBoard_getPieceSet(cboard, Piece);

U64 bitboard = CBoard_pieceSet(cboard, Piece);

bitboard_for_each_bit(src, bitboard) { U64 attack = CBoard_piece_attacks(cboard, Piece, src) & ~CBoard_colorBB(cboard, color);

@@ -315,11 +316,38 @@ void init_all() { init_sliders_attacks(); }

/* UCI */

Move parse_move(CBoard_T self, char *move_string) {

MoveList_T moves = generate_moves(self, NULL);

Square source = coordinates_to_square(move_string);

Square target = coordinates_to_square(move_string + 2);

for (int i = 0; i < moves->count; i++) {

Move move = moves->moves[i];

if (Move_source(move) == source && Move_target(move) == target) {

if (move_string[4]) {

Piece_T promoted = Piece_fromIndex(Move_promote(move));

if (tolower(Piece_code(promoted)) != move_string[4])

continue;

}

return move;

}

}

return 0;

}

int main(void) { init_all();

CBoard_T board = CBoard_fromFEN(NULL, tricky_position);

perft_test(board, 5);

CBoard_T board = CBoard_fromFEN(NULL, start_position);

Move move = parse_move(board, "e2e4");

if (move) {

make_move(board, move, 0);

CBoard_print(board);

} else

printf("Illegal move!\n");

return 0; }

diff --git a/ src/utils.c b/ src/utils.c

@@ -36,6 +36,10 @@ const char *square_to_coordinates[]={ "a8", "b8", "c8", "d8", "e8", "f8", "g8", "h8", " " }; // clang-format on

//

Square coordinates_to_square(char *cord) {

return (cord[1] - '1') * 8 + (cord[0] - 'a');

}

int bit_count(U64 bitboard) { int count = 0;