X-Git-Url: https://git.sesse.net/?p=remoteglot;a=blobdiff_plain;f=Position.pm;h=8a42a6fa39f59f9e42bd80ec08bb5d7719a759e7;hp=6840e7fdd6dd342ff883bbbd45aa2e6ff7546716;hb=bdf7fb246fa3fcf64350d8edd3f3a9ea9c32f46f;hpb=35725006988891aae7234a39c4f7c603c8b17bd9

diff --git a/Position.pm b/Position.pm
index 6840e7f..8a42a6f 100644
--- a/Position.pm
+++ b/Position.pm
@@ -38,6 +38,7 @@ sub new {
 	}
 	$pos->{'last_move'} = $x[29];
 	$pos->{'prettyprint_cache'} = {};
+	$pos->{'tbprobe_cache'} = {};
 
 	bless $pos, $class;
 	return $pos;
@@ -78,6 +79,7 @@ sub from_fen {
 	$pos->{'last_move_uci'} = undef;
 	$pos->{'last_move'} = undef;
 	$pos->{'prettyprint_cache'} = {};
+	$pos->{'tbprobe_cache'} = {};
 	
 	bless $pos, $class;
 	return $pos;
@@ -130,40 +132,12 @@ sub fen {
 	return $fen;
 }
 
-# Returns a compact bit string describing the same data as fen(),
-# except for the half-move and full-move clock.
-sub bitpacked_fen {
-	my $pos = shift;
-	my $board = $pos->{'board'}->bitpacked_fen();
-
-	my $bits = "";
-	if ($pos->{'toplay'} eq 'W') {
-		$bits .= "0";
-	} else {
-		$bits .= "1";
-	}
-
-	$bits .= $pos->{'white_castle_k'};
-	$bits .= $pos->{'white_castle_q'};
-	$bits .= $pos->{'black_castle_k'};
-	$bits .= $pos->{'black_castle_q'};
-
-	my $col = $pos->{'ep_file_num'};
-	if ($col == -1) {
-		$bits .= "0";
-	} else {
-		$bits .= "1";
-		$bits .= (qw(000 001 010 011 100 101 110 111))[$col];
-	}
-
-	return $board . pack('b*', $bits);
-}
-
 sub to_json_hash {
 	my $pos = shift;
 	my $json = { %$pos, fen => $pos->fen() };
 	delete $json->{'board'};
 	delete $json->{'prettyprint_cache'};
+	delete $json->{'tbprobe_cache'};
 	delete $json->{'black_castle_k'};
 	delete $json->{'black_castle_q'};
 	delete $json->{'white_castle_k'};
@@ -244,6 +218,12 @@ sub make_move {
 	}
 	$np->{'player_w'} = $pos->{'player_w'};
 	$np->{'player_b'} = $pos->{'player_b'};
+	if (exists($pos->{'start_fen'})) {
+		$np->{'start_fen'} = $pos->{'start_fen'};
+	}
+	if (exists($pos->{'chess960'})) {
+		$np->{'chess960'} = $pos->{'chess960'};
+	}
 	if (defined($pretty_move)) {
 		$np->{'last_move'} = $pretty_move;
 	} else {
@@ -265,6 +245,11 @@ sub make_pretty_move {
 	return ($pos, $uci_move);
 }
 
+sub is_chess960 {
+	my ($pos) = shift;
+	return (defined($pos->{'chess960'}) && $pos->{'chess960'});
+}
+
 sub _pos_to_square {
         my ($row, $col) = @_;
         return sprintf("%c%d", ord('a') + $col, 8 - $row);