- while (length $data->{leveldata}) {
- my $level = Shiar_Parse::Nested->unpack([@LEVELFORM], $data->{leveldata});
- my $offset = 13
- + 3 * (ref $level->{worms} eq 'ARRAY' ? scalar @{$level->{worms}} : 1)
- + ($level->{sprite} ? scalar @{$level->{sprite}} : 0)
- + ($level->{balls} ? 3 * scalar @{$level->{balls}} : 0);
- $level->{objects} = [];
- while (my $object = ord substr($data->{leveldata}, $offset, 1)) {
- push @{ $level->{objects} }, Shiar_Parse::Nested->unpack(
- [@OBJECTFORM], substr($data->{leveldata}, $offset, 5)
+ my $offset = 0;
+ my $offsetbase = 0xF080 + @{ $data->{sprite} } + 1;
+ $data->{moderef}->{offset}->{single} == $offsetbase
+ or warn "First singleplayer level is not in front\n";
+
+ my @VARMODES = (
+ [qw'single single'],
+ [qw'multi peaworm tron deathmatch foodmatch multifood timematch'],
+ [qw'race race'],
+ [qw'ctf ctf'],
+ );
+
+ $data->{levels} = [];
+ for my $modes (@VARMODES) {
+ my $variant = shift @$modes;
+ $offset = min(map { $data->{moderef}->{offset}->{$_} } @$modes) - $offsetbase;
+ my $amount = $variant eq 'single' ? 100 : max(map { $data->{moderef}->{end}->{$_} } @$modes);
+
+ my @varform = @LEVELFORM;
+ $varform[13]->[0] = $variant eq 'single' ? 1 : 4;
+ unshift @varform, name => 'Z*' unless $variant eq 'single';
+ $varform[-1]->[0] = 1 if $variant eq 'race';
+ $varform[-1]->[0] = 2 if $variant eq 'ctf';
+
+ while ($offset < length $data->{leveldata}) {
+ last if substr($data->{leveldata}, $offset, 1) eq chr(255);
+
+ # find references to this level offset, and set start number to matching modes
+ while (my ($mode, $location) = each %{ $data->{moderef}->{offset} }) {
+ $location == $offset + $offsetbase or next;
+ $data->{moderef}->{start}->{$mode} = 1 + scalar @{ $data->{levels} };
+ }
+
+ my $level = Shiar_Parse::Nested->unpack(
+ [@varform], substr $data->{leveldata}, $offset