# Root position. Basically ignore everything except the opening (and later some root game stuff).
my $fen = $cgi->param('fen') // 'rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1';
-my $prevfen = $cgi->param('prevfen') // '';
my $includetransp = $cgi->param('includetransp') // 1;
my $pos = Position->from_fen($fen);
-my ($json_root_pos, $root_aux_data);
-if ($includetransp) {
- ($json_root_pos, $root_aux_data) = get_json_move($pos, undef, $chld_in, $chld_out);
-} else {
- my $prev_pos_hash = 0;
- if ($prevfen ne '') {
- my $prevpos = Position->from_fen($prevfen);
- my (undef, $prev_aux_data) = get_json_move($prevpos, undef, $chld_in, $chld_out);
- $prev_pos_hash = $prev_aux_data->{'pos_hash'};
- }
- ($json_root_pos, $root_aux_data) = get_json_move($pos, $prev_pos_hash, $chld_in, $chld_out);
-}
+my ($json_root_pos, $root_aux_data) = get_json_move($pos, undef, $chld_in, $chld_out);
my $opening = $openings{$json_root_pos->{'opening_num'}} // 'A00: Start position';
my @json_moves = ($json_root_pos);
};
# Explore one move out.
+my $white_left = $json_root_pos->{'white'};
+my $draw_left = $json_root_pos->{'draw'};
+my $black_left = $json_root_pos->{'black'};
for my $move (@{$root_aux_data->{'moves'}}) {
my ($np, $uci_move) = $pos->make_pretty_move($move);
my $json_pos;
+
+ my ($json_pos_only_this_root, undef) = get_json_move($np, $root_aux_data->{'pos_hash'}, $chld_in, $chld_out);
+ $white_left -= $json_pos_only_this_root->{'white'};
+ $draw_left -= $json_pos_only_this_root->{'draw'};
+ $black_left -= $json_pos_only_this_root->{'black'};
+
if ($includetransp) {
($json_pos, undef) = get_json_move($np, undef, $chld_in, $chld_out);
+
+ # See if this move exists only due to transpositions.
+ if (!defined($json_pos_only_this_root)) {
+ $json_pos->{'transpose_only'} = 1;
+ }
} else {
- ($json_pos, undef) = get_json_move($np, $root_aux_data->{'pos_hash'}, $chld_in, $chld_out);
+ $json_pos = $json_pos_only_this_root;
}
$json_pos->{'move'} = $move;
push @json_moves, $json_pos;
}
+# If there are any positions that are not accounted for by any moves,
+# these have to be games that end here. Add them as pseudo-moves so as
+# not to confuse the user.
+for my $result (['1-0', 'white', $white_left], ['1/2-1/2', 'draw', $draw_left], ['0-1', 'black', $black_left]) {
+ next if ($result->[2] == 0);
+ my $move = {
+ move => $result->[0],
+ white => 0,
+ draw => 0,
+ black => 0
+ };
+ $move->{$result->[1]} = $result->[2];
+ push @json_moves, $move;
+}
+
+# Get stats for the root position, for the human index.
+my $start_pos = Position->start_pos("white", "black");
+my ($json_start_pos, undef) = get_json_move($start_pos, 0, $chld_in, $chld_out);
+my $total_games = $json_start_pos->{'white'} + $json_start_pos->{'draw'} + $json_start_pos->{'black'};
+my $computer_games = $json_start_pos->{'computer'} * 1;
+
print $cgi->header(-type=>'application/json');
-print JSON::XS::encode_json({ moves => \@json_moves, opening => $opening, root_game => $root_game });
+print JSON::XS::encode_json({
+ moves => \@json_moves,
+ opening => $opening,
+ root_game => $root_game,
+ total_games => $total_games,
+ computer_games => $computer_games
+});
sub read_openings {
open my $fh, "../openings.txt"
chomp (my $line = <$chld_out>);
if ($line eq '-') {
warn "Missing pos '" . $pos->fen . "' " . $filter_prev_pos_hash;
- return ({}, {});
+ return (undef, undef);
}
- my ($white, $draw, $black, $opening_num, $white_sum_elo, $black_sum_elo, $num_elo, $timestamp, $pgn_file_number, $pgn_start_position, @moves) = split / /, $line;
+ my ($white, $draw, $black, $computer, $opening_num, $white_sum_elo, $black_sum_elo, $num_elo, $timestamp, $pgn_file_number, $pgn_start_position, @moves) = split / /, $line;
my $json_pos = {
white => $white,
draw => $draw,
black => $black,
+ computer => $computer,
white_avg_elo => $num_elo == 0 ? undef : $white_sum_elo / $num_elo,
black_avg_elo => $num_elo == 0 ? undef : $black_sum_elo / $num_elo,
num_elo => $num_elo,