parse-wormedit: support older wormedit versions

[wormy.git] / parse-wormedit

diff --git a/parse-wormedit b/parse-wormedit
index 2eb9e277e417596d6d9a72204e5caba48a2815dd..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 = '1.01';
+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',
@@ -98,11 +105,43 @@ sub objsummary {
 
 # 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 $data = Shiar_Parse::Nested->convert(\@FORMAT, \@rawdata);
@@ -115,18 +154,20 @@ if ($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} },
-               'hiscore by ' . $data->{hiname},
+               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%4s:%3s+%2s%3s %3sx%-3s%s",
@@ -149,9 +190,9 @@ else {
        }
        continue {
                print "\n";
-               printf("-- %-21s%4d: %s (%s)\n",
+               printf("-- %-21s%4s: %s (%s)\n",
                        '(ending)',
-                       length $data->{enddata},
+                       defined $data->{enddata} ? length $data->{enddata} : '?',
                        $ENDTYPE[$data->{endtype}] || 'unknown', $data->{endstr},
                ) if $variant eq 'single';
        }