X-Git-Url: http://git.shiar.nl/wormy.git/blobdiff_plain/6c599c66b38654aef23387cc2d4800dc10ea74f5..f4886cc6c2159afd00025585fcc6ea7aac820391:/parse-wormedit diff --git a/parse-wormedit b/parse-wormedit index 6eb7915..ed64118 100755 --- a/parse-wormedit +++ b/parse-wormedit @@ -6,7 +6,7 @@ use 5.010; use Data::Dumper; use Getopt::Long 2.33 qw(HelpMessage :config bundling); -our $VERSION = '1.03'; +our $VERSION = '1.04'; GetOptions(\my %opt, 'raw|r', # full output @@ -19,6 +19,8 @@ package Shiar_Parse::WormEdit; use strict; use warnings; +use Parse::Binary::Nested qw(unpackf); + our %MAGICID = ( "WormEdit053\000LVL" => 53, "WormEdit\34195\000LVL" => 95, @@ -29,8 +31,8 @@ our %MAGICID = ( my @FORMAT = ( magic => 'a15', version => 'C', - name => 'Ca32', - description => 'Ca64x256', + name => 'C/a32', + description => 'C/a64x256', levelcount => [1, single => 'C', multi => 'C', @@ -48,7 +50,8 @@ my @FORMAT = ( multifood => 'C', timematch => 'C', race => 'C', - ctf => 'Cx', + ctf => 'C', + reserved => 'x', ], ], sprite => ['8C', @@ -56,13 +59,14 @@ my @FORMAT = ( ], finish => [1, type => 's', - message => 'Ca255', - code => 'Ca255x256', + message => 'C/a255', + code => 'C/a255', + reserved=> 'x256', ], hiname => 'a3', levels => ['*', # levelcount->total actually - id => 'Ca22', - name => 'Ca22', + id => 'C/a22', + name => 'C/a22', size => 'C', peas => 'C', delay => 'C', @@ -127,13 +131,12 @@ sub read { $fileversion += 100 if $fileversion < 90; # 93..95 came before 50..53 given ($fileversion) { when (153) { } # current @FORMAT - $FORMAT[7] = 'Ca64'; # no reserved space after description - $FORMAT[15]->[-1] = 'Ca255'; # enddata + $FORMAT[7] = 'C/a64'; # no reserved space after description + splice @{ $FORMAT[15] }, -2; # finish reserve $FORMAT[-1]->[-1]->[0] = '32C'; # less objects - when ($version == 96) { - ref $_ and $_->[-1] = 'C' for @{ $FORMAT[11] }; # 9 moderefs - } - ref $_ and pop @$_ for @{ $FORMAT[11] }; # only 8 moderefs + ref $_ and pop @$_ for @{ $FORMAT[11] }; # 9 moderefs + when ($version == 96) { } + ref $_ and pop @$_ for @{ $FORMAT[11] }; # only 8 moderefs (no ctf) splice @FORMAT, 6, 2 if $version <= 94; # earlier version without description when (95) { } splice @{ $FORMAT[7] }, 4, 2; # no race @@ -149,9 +152,9 @@ sub read { } # convert to an easily accessible hash - my @values = unpack Shiar_Parse::Nested->template(\@FORMAT).'a*', $input; - my $data = Shiar_Parse::Nested->convert(\@FORMAT, \@values); - warn "Trailing data left unparsed\n" if grep {length} @values; + push @FORMAT, -trail => 'a*'; + my $data = unpackf(\@FORMAT, $input); + warn "Trailing data left unparsed\n" if length delete $data->{-trail}; $data->{format} = 'WormEdit'; return $data; } @@ -163,10 +166,12 @@ use strict; use warnings; use List::Util qw(sum min max); +use Data::Dumper; +use Parse::Binary::Nested qw(unpackf); sub read { my ($self, $input) = @_; - my ($psize, $ptype, $size, $type, $vsize, $dsize, $id, $subid) = unpack q{ + my ($psize, $ptype, $size, $type, $vsize, $dsize, $id, $version) = unpack q{ x11 x42 # file signature and comment S a2 S a2 # file size, type; data size, type x8 # var name @@ -186,6 +191,17 @@ sub read { $input = substr $input, 73, -2; $id eq ord 'w' or die "Wormy level identifier not found\n"; + + if ($opt{version}) { + warn "Override version $version to $opt{version}\n"; + $version = $opt{version}; + } + elsif ($version == 95) { + # level offset instead of description byte + $version-- if (unpack('x2Z*x2xC', $input))[1] == 0xF4; + warn "Ambiguous file version 95; guessing subversion $version\n"; + } + my @FORMAT = ( magic => 'a1', version => 'C', @@ -201,7 +217,7 @@ sub read { ) } [qw/single peaworm tron deathmatch foodmatch multifood timematch race ctf/] ], - theanswer => 'C', # 42 + theanswer => 'x', # 42 sprite => ['C', line => 'B8', ], @@ -243,26 +259,54 @@ sub read { x2 => 'C', y2 => 'C', ); + my $offsetbase = 0xF080; - given ($subid) { + given ($version) { when (97) { # current @FORMAT } - when (95) { - ref $_ and splice @$_, -2 for @{ $FORMAT[11] }; # only 8 moderefs + $offsetbase = 0xF400; + when (96) {} + ref $_ and splice(@$_, -8, 2) for @{ $FORMAT[11] }; # no multifood splice @FORMAT, 12, 2; # no reserved byte + when (95) {} + splice @FORMAT, 6, 2; # no description + when (94) {} + when (90) { + $FORMAT[5] = 'C/a'; # length-preceding name + splice @FORMAT, 10, 2; # no default sprite + ref $_ and do { + $_->[5] = $_->[7]; # no tron; deathmatch instead + $_->[7] = $_->[9]; # foodmatch instead + $_->[9] = 'linkmatch'; # replaces timematch + $_->[11] = $_->[13]; # race + $_->[13] = $_->[15]; # ctf + $_->[15] = 'domination'; + } for @{ $FORMAT[9] }; # no multifood + push @LEVELFORM, "objects$_" => ['C', + type => "=$_", + map {$_ => 'C'} qw(x1 y1 x2 y2) + ] for 2, 3; } default { - die "Unsupported level version $subid\n"; + die "Unsupported level version $version\n"; } } - my $data = Shiar_Parse::Nested->unpack(\@FORMAT, $input); + my $data = unpackf(\@FORMAT, $input); my $offset = 0; - my $offsetbase = 0xF080 + @{ $data->{sprite} } + 1; + $offsetbase += 1 + @{ $data->{sprite} } if $data->{sprite}; $data->{moderef}->{offset}->{single} == $offsetbase or warn "First singleplayer level is not in front\n"; + my $slots = sum( + $data->{moderef}->{end}->{single} > 0, # singleplayer slot if any levels + $data->{moderef}->{end}->{peaworm}, # one for each peaworm arena + $data->{moderef}->{end}->{tron}, # idem for tron + ); + $data->{hinames} = [ unpack '(x2a3)*', substr($data->{leveldata}, -5 * $slots) ]; + $data->{format} = '86s'; + my @VARMODES = ( [qw'single single'], [qw'multi peaworm tron deathmatch foodmatch multifood timematch'], @@ -273,14 +317,22 @@ sub read { $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 @modeoffsets = grep {defined} #TODO: comment + map { $data->{moderef}->{offset}->{$_} } @$modes; + @modeoffsets or next; + $data->{levelcount}->{$variant} = 0; + $offset = min(grep {$_} @modeoffsets) or next; + $offset -= $offsetbase; + my $amount = $variant eq 'single' ? 100 + : max(grep {defined} 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'; + unshift @varform, name => 'Z*' unless $variant eq 'single' or $version <= 91; + $varform[-1]->[0] = 1 if $variant eq 'race' and $version > 91; $varform[-1]->[0] = 2 if $variant eq 'ctf'; + push @varform, size => '=.'; + my $parselevel = Parse::Binary::Nested->new(\@varform); while ($offset < length $data->{leveldata}) { last if substr($data->{leveldata}, $offset, 1) eq chr(255); @@ -291,93 +343,75 @@ sub read { $data->{moderef}->{start}->{$mode} = 1 + scalar @{ $data->{levels} }; } - my $level = Shiar_Parse::Nested->unpack( - [@varform], substr $data->{leveldata}, $offset - ); + my $level = $parselevel->unpackf(substr $data->{leveldata}, $offset); my $size = 8 # unpack length (ugh, ugly recalculation) + (defined $level->{name} ? 1 + length $level->{name} : 0) + 3 * (ref $level->{worms} eq 'ARRAY' ? scalar @{$level->{worms}} : 1) + 2 * ($level->{flags} ? ref $level->{flags} eq 'ARRAY' ? scalar @{$level->{flags}} : 1 : 0) + ($level->{sprite} ? scalar @{$level->{sprite}} : 0) + ($level->{balls} ? 3 * scalar @{$level->{balls}} : 0); - $level->{size} = $size; + $level->{sizecalc} = $size; $level->{offset} = $offset + $offsetbase; # add objects until terminator $level->{objects} = []; + if ($version <= 91) { + ref $_ eq 'ARRAY' and push @{ $level->{objects} }, @$_ + for map { delete $level->{"objects$_"} } 2, 3; + } + else { while (my $object = ord substr($data->{leveldata}, $offset+$size, 1)) { - push @{ $level->{objects} }, Shiar_Parse::Nested->unpack( - [@OBJECTFORM], substr($data->{leveldata}, $offset+$size, 5) + push @{ $level->{objects} }, Parse::Binary::Nested->new([@OBJECTFORM])->unpackf( + substr $data->{leveldata}, $offset+$size, 5 ); $size += 5; } + } # add parsed level and advance push @{ $data->{levels} }, $level; - $offset += ++$size; + $offset += $level->{size}; last if ++$data->{levelcount}->{$variant} >= $amount; } - } - - my $slots = sum( - $data->{moderef}->{end}->{single} > 0, # singleplayer slot if any levels - $data->{moderef}->{end}->{peaworm}, # one for each peaworm arena - $data->{moderef}->{end}->{tron}, # idem for tron - ); - $data->{hinames} = [ unpack '(x2a3)*', substr($data->{leveldata}, -5 * $slots) ]; - $data->{finish}->{code} = substr delete($data->{leveldata}), $offset, -5 * $slots; #XXX - $data->{format} = '86s'; - return $data; -} - - -package Shiar_Parse::Nested; - -sub template { - my ($self, $format) = @_; - # total (flattened) unpack template from nested format definitions - return join '', map { - my $value = $format->[-($_ << 1) - 1]; - if (ref $value eq 'ARRAY') { - my $count = $value->[0]; - $value = $self->template($value); - $value = $count =~ s/^([*\d]+)// ? "$count($value)$1" - : $count."X[$count]$count/($value)"; - } - else { - $value =~ s/^C(a)(\d+)/$1 . ($2 + 1)/e; # length prefix - } - $value; - } reverse 0 .. ($#$format - 1) >> 1; -} -sub convert { - my ($self, $format, $data) = @_; - # map flat results into a named and nested hash - my %res; - while (my ($field, $template) = splice @$format, 0, 2) { - if (ref $template eq 'ARRAY') { - my ($count, @subformat) = @$template; - my $max = $count =~ s/^(\d+)// ? $1 : 0; - $count = !$count ? $max - : $count eq '*' ? $res{levelcount}->{total} : shift @$data; - $res{$field}->[$_] = $self->convert([@subformat], $data) for 0 .. ($max || $count)-1; - splice @{ $res{$field} }, $count if $max > $count; - $res{$field} = $res{$field}->[0] if $max == 1; - next; - } - elsif ($template =~ /^Ca/) { - $data->[0] = CORE::unpack 'C/a', $data->[0]; + if ($variant eq 'single') { + $offset++; + $data->{finish}->{code} = + my $code = substr $data->{leveldata}, $offset, -5*$slots; + + my %FINISHCODE = ( + 0 => chr 0xC9, # ret + 1 => join('', + chr 0x21, # ld hl, MESSAGE + pack('v', $offsetbase + $offset + 9), + (map {chr} + 0xCD, 0x37, 0x4A, # call _puts + 0xC3, 0xAA, 0x55, # jp _getkey + ), + ), + 2 => join('', + (map {chr} + 0x21, 0, 0x1C, # ld hl, $POS + 0x22, 0x7C, 0xC3, # ld (_penCol), hl + 0x21, # ld hl, MESSAGE + ), + pack('v', $offsetbase + $offset + 15), + (map {chr} + 0xCD, 0xA5, 0x4A, # call _vputs + 0xC3, 0xAA, 0x55, # jp _getkey + ), + ), + ); + while (my ($finish, $match) = each %FINISHCODE) { + $match eq substr $code, 0, length $match or next; + $data->{finish}->{type} = $finish and + $data->{finish}->{message} = unpack 'Z*', substr($code, length $match); + last; + } } - $res{$field} = shift @$data; } - return \%res; -} -sub unpack { - my ($self, $format, $input) = @_; - my @data = CORE::unpack $self->template($format), $input; - return $self->convert($format, \@data); + return $data; } @@ -442,7 +476,7 @@ else { print "\n"; printf "File version: %s\n", "$data->{format} v$data->{version}"; printf "Defaults: %s\n", join('; ', - 'sprite ' . scalar @{ $data->{sprite} }, + $data->{sprite} ? 'sprite ' . scalar @{ $data->{sprite} } : (), defined $data->{hiname} ? 'hiscore by ' . $data->{hiname} : (), );