6 use Getopt::Long 2.33 qw(HelpMessage :config bundling);
12 ) or HelpMessage(-exitval => 2);
14 my $MAGICID = "WormEdit053\000LVL";
20 description => 'Ca64x256',
29 map { (start => $_, end => $_) } [1,
46 enddata => 'Ca255x256',
48 levels => ['*', # levelcount->total actually
85 my @OBJTYPE = ('none', 'line', 'fat line', 'bar', 'circle');
86 my @ENDTYPE = ('none', 'message', 'small message');
90 my @objtypes = map { $_->{type} } @$objects;
92 $count{$_}++ for @objtypes;
93 return (@objtypes > 1 && keys %count == 1 && 'all ') . join(', ',
94 map { $OBJTYPE[$_] ? $OBJTYPE[$_] . ($count{$_} > 1 && 's') : $_ }
99 # read and parse all input data
101 my @rawdata = unpack Shiar_Parse::Nested->template(\@FORMAT).'a*', readline;
102 $rawdata[0] eq $MAGICID
103 or die "File does not match WormEdit level header\n";
105 or warn "Unsupported version $rawdata[1] (expecting 53)\n";
107 # convert to an easily accessible hash
108 my $data = Shiar_Parse::Nested->convert(\@FORMAT, \@rawdata);
109 warn "Trailing data left unparsed\n" if grep {length} @rawdata;
111 # output with user-preferred formatting
114 my $output = JSON::XS->new->ascii->canonical->pretty->allow_nonref;
115 print $output->encode($data), "\n";
118 print "$data->{name} ($data->{description})\n";
119 printf "File version: %s\n", "WormEdit v$data->{version}";
120 printf "Defaults: %s\n", join('; ',
121 'sprite ' . scalar @{ $data->{sprite} },
122 'hiscore by ' . $data->{hiname},
126 for my $variant (qw/single multi race ctf/) {
128 my $count = $data->{levelcount}->{$variant};
129 printf "\u$variant ($count)";
132 printf("\n- %-22s%4s:%3s+%2s%3s %3sx%-3s%s",
133 $_->{id} || $_->{name},
134 @$_{qw/size bsize growth/},
135 $variant eq 'single' && "x$_->{peas}",
136 @$_{qw/width height/},
137 join(';', map {" $_"} grep {$_}
138 @{$_->{objects}} && sprintf('%2d object%s (%s)',
139 scalar @{$_->{objects}}, @{$_->{objects}} != 1 && 's',
140 objsummary($_->{objects}),
142 @{$_->{sprite}} && sprintf('sprite %d',
143 scalar @{$_->{sprite}},
146 ) for map { $data->{levels}->[$_ + $startnr] }
152 printf("-- %-21s%4d: %s (%s)\n",
154 length $data->{enddata},
155 $ENDTYPE[$data->{endtype}] || 'unknown', $data->{endstr},
156 ) if $variant eq 'single';
160 package Shiar_Parse::Nested;
163 my ($self, $format) = @_;
164 # total (flattened) unpack template from nested format definitions
165 return join '', map {
166 my $value = $format->[-($_ << 1) - 1];
167 if (ref $value eq 'ARRAY') {
168 my $count = $value->[0];
169 $value = $self->template($value);
170 $value = $count =~ s/^([*\d]+)// ? "$count($value)$1"
171 : $count."X[$count]$count/($value)";
174 $value =~ s/^C(a)(\d+)/$1 . ($2 + 1)/e; # length prefix
177 } reverse 0 .. ($#$format - 1) >> 1;
181 my ($self, $format, $data) = @_;
182 # map flat results into a named and nested hash
184 while (my ($field, $template) = splice @$format, 0, 2) {
185 if (ref $template eq 'ARRAY') {
186 my ($count, @subformat) = @$template;
187 my $max = $count =~ s/^(\d+)// ? $1 : 0;
188 $count = !$count ? $max
189 : $count eq '*' ? $res{levelcount}->{total} : shift @$data;
191 $res{$field}->[$_] = $self->convert([@subformat], $data) for 0 .. $max-1;
192 splice @{ $res{$field} }, $count if $max > $count;
193 $res{$field} = $res{$field}->[0] if $max == 1;
196 elsif ($template =~ /^Ca/) {
197 $data->[0] = unpack 'C/a', $data->[0];
199 $res{$field} = shift @$data;
208 parse-wormedit - WormEdit level data parser
212 parse-wormedit [--raw] <input.lvl>
216 Reads WormEdit v0.53 levels from STDIN or given file,
217 and outputs contents, summarised or in full.
221 Mischa POSLAWSKY <wormy@shiar.org>