ChessBoolean chess_position_move_is_legal(const ChessPosition* position, ChessMove move)
{
ChessMoveGenerator generator;
ChessMove legalMove;
chess_move_generator_init(&generator, position);
while ((legalMove = chess_move_generator_next(&generator)))
{
if (legalMove == move)
return CHESS_TRUE;
}
return CHESS_FALSE;
}
ChessResult chess_position_check_result(const ChessPosition* position)
{
ChessMoveGenerator generator;
chess_move_generator_init(&generator, position);
if (chess_move_generator_next(&generator) > 0)
return CHESS_RESULT_NONE;
if (!chess_position_is_check(position))
return CHESS_RESULT_DRAW; /* Stalemate */
return (position->to_move == CHESS_COLOR_WHITE) ?
CHESS_RESULT_BLACK_WINS : CHESS_RESULT_WHITE_WINS;
}
static void list_moves(const ChessGameIterator* iter)
{
ChessMoveGenerator generator;
ChessMove move;
char buf[16];
chess_move_generator_init(&generator, &iter->position);
while ((move = chess_move_generator_next(&generator)))
{
chess_print_move_san(move, &iter->position, buf);
printf("%s ", buf);
}
putchar('\n');
}
void chess_generate_moves(const ChessPosition* position, ChessArray* moves)
{
ChessMoveGenerator generator;
ChessMove move;
chess_move_generator_init(&generator, position);
while ((move = chess_move_generator_next(&generator)))
{
if (!move_is_legal(position, move))
continue;
chess_array_push(moves, &move);
}
}