parse-wormedit: support older wormedit versions

[wormy.git] / parse-wormedit

diff --git a/parse-wormedit b/parse-wormedit
index 4f9295904e9d49356bd49034df801aeefbd66e9a..473f49ef29a9c93200b528c7ff94b4b3674e5dce 100755 (executable)
--- a/parse-wormedit
+++ b/parse-wormedit
@@ -1,17 +1,24 @@
 #!/usr/bin/env perl
 use strict;
 use warnings;
+use 5.010;
 
 use Data::Dumper;
 use Getopt::Long 2.33 qw(HelpMessage :config bundling);
 
-our $VERSION = '1.00';
+our $VERSION = '1.02';
 
 GetOptions(\my %opt,
-       'raw|r',
+       'raw|r',  # full output
+       'version=i',  # force version
 ) or HelpMessage(-exitval => 2);
 
-my $MAGICID = "WormEdit053\000LVL";
+my %MAGICID = (
+       "WormEdit053\000LVL" => 53,
+       "WormEdit\34195\000LVL" => 95,
+       "WormEdit\34194\000LVL" => 94,
+       "WormEdit\34193\000LVL" => 93,
+);
 
 my @FORMAT = (
        magic       => 'a15',
@@ -82,13 +89,59 @@ my @FORMAT = (
        ],
 );
 
+my @OBJTYPE = ('none', 'line', 'fat line', 'bar', 'circle');
+my @ENDTYPE = ('none', 'message', 'small message');
+
+sub objsummary {
+       my ($objects) = @_;
+       my @objtypes = map { $_->{type} } @$objects;
+       my %count;
+       $count{$_}++ for @objtypes;
+       return (@objtypes > 1 && keys %count == 1 && 'all ') . join(', ',
+               map { $OBJTYPE[$_] ? $OBJTYPE[$_] . ($count{$_} > 1 && 's') : $_ }
+               sort keys %count
+       );
+}
+
 # read and parse all input data
 local $/;
-my @rawdata = unpack Shiar_Parse::Nested->template(\@FORMAT).'a*', readline;
-$rawdata[0] eq $MAGICID
-       or die "File does not match WormEdit level header\n";
-$rawdata[1] == 53
-       or warn "Unsupported version $rawdata[1] (expecting 53)\n";
+my $rawdata = readline;
+my ($id, $subid) = (substr($rawdata, 0, 15), ord substr($rawdata, 15, 1));
+my $version = $opt{version} // $MAGICID{$id}
+       or die "File does not match any known WormEdit level header\n";
+$subid == $version
+       or warn "Unsupported version $subid (expecting $version)\n";
+given ($version) {
+       when (53) {
+               # current @FORMAT
+       }
+       when ($_ <= 95 and $_ > 90) {
+               ref $_ and pop @$_ for @{ $FORMAT[11] }; # only 8 moderefs
+               $FORMAT[-1]->[-1]->[0] = '32C'; # less objects
+               continue;
+       }
+       when (95) {
+               $FORMAT[7] = 'Ca64'; # no reserved space after description
+               #ref $_ and $_->[-1] = 'C' for @{ $FORMAT[11] }; # only 9 moderefs
+               $FORMAT[19] = 'Ca255'; # enddata
+               splice @FORMAT, 6, 2 if $subid < 95;  # early (sub)version without description
+       }
+       when ($_ <= 94 and $_ > 90) {
+               splice @FORMAT, 6, 2;  # no description
+               splice @{ $FORMAT[7] }, 4, 2;  # no race
+               splice @FORMAT, 16, 2; # no enddata
+               splice @{ $FORMAT[-1] }, 1, 2; # no name
+               continue if $_ < 94;
+       }
+       when (93) {
+               splice @FORMAT, 16, 2; # no hiname
+               $FORMAT[-1]->[0] = 64; # constant amount of levels
+       }
+       default {
+               die "Cannot parse data for Wormedit $version\n";
+       }
+}
+my @rawdata = unpack Shiar_Parse::Nested->template(\@FORMAT).'a*', $rawdata;
 
 # convert to an easily accessible hash
 my $data = Shiar_Parse::Nested->convert(\@FORMAT, \@rawdata);
@@ -101,22 +154,47 @@ if ($opt{raw}) {
        print $output->encode($data), "\n";
 }
 else {
-       print "$data->{name} ($data->{description})\n";
+       print $data->{name};
+       print " ($data->{description})" if defined $data->{description};
+       print "\n";
+       printf "File version: %s\n", "WormEdit v$data->{version}";
+       printf "Defaults: %s\n", join('; ',
+               'sprite ' . scalar @{ $data->{sprite} },
+               defined $data->{hiname} ? 'hiscore by ' . $data->{hiname} : (),
+       );
+
        my $startnr = 0;
        for my $variant (qw/single multi race ctf/) {
-               print "\n";
                my $count = $data->{levelcount}->{$variant};
-               printf "\u$variant ($count)";
+               print "\n";
+               printf '%s (%s)', ucfirst $variant, $count // 'invalid';
                $count or next;
                print ":";
-               printf("\n- %-22s (%3sx%3s, %d objects)",
-                       $_->{id}, $_->{width}, $_->{height}, scalar @{ $_->{objects} },
+               printf("\n- %-22s%4s:%3s+%2s%3s %3sx%-3s%s",
+                       $_->{id} || $_->{name},
+                       @$_{qw/size bsize growth/},
+                       $variant eq 'single' && "x$_->{peas}",
+                       @$_{qw/width height/},
+                       join(';', map {" $_"} grep {$_}
+                               @{$_->{objects}} && sprintf('%2d object%s (%s)',
+                                       scalar @{$_->{objects}}, @{$_->{objects}} != 1 && 's',
+                                       objsummary($_->{objects}),
+                               ),
+                               @{$_->{sprite}} && sprintf('sprite %d',
+                                       scalar @{$_->{sprite}},
+                               ),
+                       ),
                ) for map { $data->{levels}->[$_ + $startnr] }
                        0 .. $count - 1;
                $startnr += $count;
        }
        continue {
                print "\n";
+               printf("-- %-21s%4s: %s (%s)\n",
+                       '(ending)',
+                       defined $data->{enddata} ? length $data->{enddata} : '?',
+                       $ENDTYPE[$data->{endtype}] || 'unknown', $data->{endstr},
+               ) if $variant eq 'single';
        }
 }