Add a cache around prettyprint_pv, since it is consuming a lot of CPU.

[remoteglot] / Position.pm

diff --git a/Position.pm b/Position.pm
index 371e179b8139d9541b85d874917cbc1255ee1768..1a02d61d86f28626aff845546b79ddbde6e487c5 100644 (file)
--- a/Position.pm
+++ b/Position.pm
@@ -29,7 +29,13 @@ sub new {
        $pos->{'player_w'} =~ s/^W?[FCIG]M//;
        $pos->{'player_b'} =~ s/^W?[FCIG]M//;
        $pos->{'move_num'} = $x[26];
+       if ($x[27] =~ /([a-h][1-8])-([a-h][1-8])/) {
+               $pos->{'last_move_uci'} = $1 . $2;
+       } else {
+               $pos->{'last_move_uci'} = undef;
+       }
        $pos->{'last_move'} = $x[29];
+       $pos->{'prettyprint_cache'} = {};
 
        bless $pos, $class;
        return $pos;
@@ -179,6 +185,8 @@ sub make_move {
        $np->{'player_b'} = $pos->{'player_b'};
        my ($move, $nb) = $pos->{'board'}->prettyprint_move($from_row, $from_col, $to_row, $to_col, $promo);
        $np->{'last_move'} = $move;
+       $np->{'last_move_uci'} = Board::move_to_uci_notation($from_row, $from_col, $to_row, $to_col, $promo);
+
        return bless $np;
 }