$pos->{'last_move_uci'} = undef;
}
$pos->{'last_move'} = $x[29];
+ $pos->{'prettyprint_cache'} = {};
bless $pos, $class;
return $pos;
sub to_json_hash {
my $pos = shift;
- my $json = { %$pos, board => undef, fen => $pos->fen() };
+ my $json = { %$pos, fen => $pos->fen() };
+ delete $json->{'board'};
+ delete $json->{'prettyprint_cache'};
+ delete $json->{'black_castle_k'};
+ delete $json->{'black_castle_q'};
+ delete $json->{'white_castle_k'};
+ delete $json->{'white_castle_q'};
+ delete $json->{'time_since_100move_rule_reset'};
if ($json->{'player_w'} =~ /^base64:(.*)$/) {
$json->{'player_w'} = MIME::Base64::decode_base64($1);
}
return $pos->{'board'}->parse_pretty_move($move, $pos->{'toplay'});
}
+sub num_pieces {
+ my ($pos) = @_;
+ return $pos->{'board'}->num_pieces();
+}
+
# Returns a new Position object.
sub make_move {
my ($pos, $from_row, $from_col, $to_row, $to_col, $promo) = @_;
return bless $np;
}
+# Returns a new Position object, and the parsed UCI move.
+sub make_pretty_move {
+ my ($pos, $move) = @_;
+
+ my ($from_row, $from_col, $to_row, $to_col, $promo) = $pos->parse_pretty_move($move);
+ my $uci_move = Board::move_to_uci_notation($from_row, $from_col, $to_row, $to_col, $promo);
+ $pos = $pos->make_move($from_row, $from_col, $to_row, $to_col, $promo);
+ return ($pos, $uci_move);
+}
+
sub _pos_to_square {
my ($row, $col) = @_;
return sprintf("%c%d", ord('a') + $col, 8 - $row);