stellar

UCI Chess engine written in C++20
git clone git://git.dimitrijedobrota.com/stellar.git
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commit733fd2ea50dfbd88f6d14dea714bd8a9334998f1
parenta0ffb46f5a2aecd3073adcc6a10dc11fc528c295
authorDimitrije Dobrota <mail@dimitrijedobrota.com>
dateSat, 24 Sep 2022 13:05:11 +0200

Generate castling moves

Diffstat:
Msrc/engine.c|++++++++++++++++++++++++++++-

1 files changed, 28 insertions(+), 1 deletions(-)

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

@@ -266,6 +266,31 @@ void CBoard_move_generate(CBoard_T self) {

}
}
}
// Castling
{
if (!CBoard_square_isAttack(self, e1, BLACK)) {
if (self->castle & WK && !bit_get(occupancy, f1) &&
!bit_get(occupancy, g1)) {
printf("CASTLE WHITE KING SIDE\n");
}
if (self->castle & WQ && !bit_get(occupancy, b1) &&
!bit_get(occupancy, c1) && !bit_get(occupancy, d1)) {
printf("CASTLE WHITE QUEEN SIDE\n");
}
}
if (!CBoard_square_isAttack(self, e1, WHITE)) {
if (self->castle & BK && !bit_get(occupancy, f8) &&
!bit_get(occupancy, g8)) {
printf("CASTLE BLACK KING SIDE\n");
}
if (self->castle & BQ && !bit_get(occupancy, b8) &&
!bit_get(occupancy, c8) && !bit_get(occupancy, d8)) {
printf("CASTLE BLACK QUEEN SIDE\n");
}
}
}
}
void CBoard_print(CBoard_T self) {

@@ -330,7 +355,9 @@ int main(void) {

init_all();
CBoard_T board;
board = CBoard_fromFEN(NULL, tricky_position);
board = CBoard_fromFEN(
NULL,
"r3k2r/p1ppqpb1/bn2pnp1/3PN3/1p2P3/2N2Q1p/PPPBBPPP/R3K2R w KQkq - 0 1 ");
CBoard_print(board);
CBoard_move_generate(board);