X-Git-Url: https://git.sesse.net/?p=remoteglot;a=blobdiff_plain;f=remoteglot.pl;h=b128e29735b99e7a520d1d31ecec61db0d7cfe40;hp=4ccdac7e4b873d69143194795f2e6f71e0715806;hb=96875773d3cd75a57b13cba9d1497c616cf76503;hpb=ad566e0ccb947e1c2e3e81580edacaf88765701b

diff --git a/remoteglot.pl b/remoteglot.pl
index 4ccdac7..b128e29 100755
--- a/remoteglot.pl
+++ b/remoteglot.pl
@@ -93,8 +93,6 @@ $t->cmd("");
 $t->cmd("set shout 0");
 $t->cmd("set seek 0");
 $t->cmd("set style 12");
-$t->cmd("observe $remoteglotconf::target");
-print "FICS ready.\n";
 
 my $ev1 = AnyEvent->io(
 	fh => fileno($t),
@@ -110,6 +108,15 @@ my $ev1 = AnyEvent->io(
 		}
 	}
 );
+if (defined($remoteglotconf::target)) {
+	if ($remoteglotconf::target =~ /^http:/) {
+		fetch_pgn($remoteglotconf::target);
+	} else {
+		$t->cmd("observe $remoteglotconf::target");
+	}
+}
+print "FICS ready.\n";
+
 # Engine events have already been set up by Engine.pm.
 EV::run;
 
@@ -153,10 +160,60 @@ sub handle_uci {
 	output();
 }
 
+my $getting_movelist = 0;
+my $pos_for_movelist = undef;
+my @uci_movelist = ();
+my @pretty_movelist = ();
+
 sub handle_fics {
 	my $line = shift;
 	if ($line =~ /^<12> /) {
 		handle_position(Position->new($line));
+		$t->cmd("moves");
+	}
+	if ($line =~ /^Movelist for game /) {
+		my $pos = $pos_waiting // $pos_calculating;
+		if (defined($pos)) {
+			@uci_movelist = ();
+			@pretty_movelist = ();
+			$pos_for_movelist = Position->start_pos($pos->{'player_w'}, $pos->{'player_b'});
+			$getting_movelist = 1;
+		}
+	}
+	if ($getting_movelist &&
+	    $line =~ /^\s* \d+\. \s+                     # move number
+                       (\S+) \s+ \( [\d:.]+ \) \s*       # first move, then time
+	               (?: (\S+) \s+ \( [\d:.]+ \) )?    # second move, then time 
+	             /x) {
+		eval {
+			my $uci_move;
+			($pos_for_movelist, $uci_move) = $pos_for_movelist->make_pretty_move($1);
+			push @uci_movelist, $uci_move;
+			push @pretty_movelist, $1;
+
+			if (defined($2)) {
+				($pos_for_movelist, $uci_move) = $pos_for_movelist->make_pretty_move($2);
+				push @uci_movelist, $uci_move;
+				push @pretty_movelist, $2;
+			}
+		};
+		if ($@) {
+			warn "Error when getting FICS move history: $@";
+			exit;
+			$getting_movelist = 0;
+		}
+	}
+	if ($getting_movelist &&
+	    $line =~ /^\s+ \{.*\} \s+ (?: \* | 1\/2-1\/2 | 0-1 | 1-0 )/x) {
+		# End of movelist.
+		for my $pos ($pos_waiting, $pos_calculating) {
+			next if (!defined($pos));
+			if ($pos->fen() eq $pos_for_movelist->fen()) {
+				$pos->{'history'} = \@uci_movelist;
+				$pos->{'pretty_history'} = \@pretty_movelist;
+			}
+		}
+		$getting_movelist = 0;
 	}
 	if ($line =~ /^([A-Za-z]+)(?:\([A-Z]+\))* tells you: (.*)$/) {
 		my ($who, $msg) = ($1, $2);
@@ -172,9 +229,7 @@ sub handle_fics {
 		} elsif ($msg =~ /^pgn (.*?)$/) {
 			my $url = $1;
 			$t->cmd("tell $who Starting to poll '$url'.");
-			AnyEvent::HTTP::http_get($url, sub {
-				handle_pgn(@_, $url);
-			});
+			fetch_pgn($url);
 		} elsif ($msg =~ /^stoppgn$/) {
 			$t->cmd("tell $who Stopping poll.");
 			$http_timer = undef;
@@ -188,6 +243,18 @@ sub handle_fics {
 	#print "FICS: [$line]\n";
 }
 
+# Starts periodic fetching of PGNs from the given URL.
+sub fetch_pgn {
+	my ($url) = @_;
+	AnyEvent::HTTP::http_get($url, sub {
+		handle_pgn(@_, $url);
+	});
+}
+
+my ($last_pgn_white, $last_pgn_black);
+my @last_pgn_uci_moves = ();
+my $pgn_hysteresis_counter = 0;
+
 sub handle_pgn {
 	my ($body, $header, $url) = @_;
 	my $pgn = Chess::PGN::Parse->new(undef, $body);
@@ -199,19 +266,37 @@ sub handle_pgn {
 		my $moves = $pgn->moves;
 		my @uci_moves = ();
 		for my $move (@$moves) {
-			my ($from_row, $from_col, $to_row, $to_col, $promo) = $pos->parse_pretty_move($move);
-			push @uci_moves, 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);
+			my $uci_move;
+			($pos, $uci_move) = $pos->make_pretty_move($move);
+			push @uci_moves, $uci_move;
 		}
 		$pos->{'history'} = \@uci_moves;
 		$pos->{'pretty_history'} = $moves;
-		handle_position($pos);
+
+		# Sometimes, PGNs lose a move or two for a short while,
+		# or people push out new ones non-atomically. 
+		# Thus, if we PGN doesn't change names but becomes
+		# shorter, we mistrust it for a few seconds.
+		my $trust_pgn = 1;
+		if (defined($last_pgn_white) && defined($last_pgn_black) &&
+		    $last_pgn_white eq $pgn->white &&
+		    $last_pgn_black eq $pgn->black &&
+		    scalar(@uci_moves) < scalar(@last_pgn_uci_moves)) {
+			if (++$pgn_hysteresis_counter < 3) {
+				$trust_pgn = 0;	
+			}
+		}
+		if ($trust_pgn) {
+			$last_pgn_white = $pgn->white;
+			$last_pgn_black = $pgn->black;
+			@last_pgn_uci_moves = @uci_moves;
+			$pgn_hysteresis_counter = 0;
+			handle_position($pos);
+		}
 	}
 	
 	$http_timer = AnyEvent->timer(after => 1.0, cb => sub {
-		AnyEvent::HTTP::http_get($url, sub {
-			handle_pgn(@_, $url);
-		});
+		fetch_pgn($url);
 	});
 }
 
@@ -846,9 +931,9 @@ sub handle_tb_lookup_return {
 				my $moves = $pgn->moves;
 				my @uci_moves = ();
 				for my $move (@$moves) {
-					my ($from_row, $from_col, $to_row, $to_col, $promo) = $pvpos->parse_pretty_move($move);
-					push @uci_moves, Board::move_to_uci_notation($from_row, $from_col, $to_row, $to_col, $promo);
-					$pvpos = $pvpos->make_move($from_row, $from_col, $to_row, $to_col, $promo);
+					my $uci_move;
+					($pvpos, $uci_move) = $pvpos->make_pretty_move($move);
+					push @uci_moves, $uci_move;
 				}
 				$tb_cache{$fen} = {
 					result => $pgn->result,