parse-wormedit: include multiplayer levels in images

[wormy.git] / parse-wormedit

diff --git a/parse-wormedit b/parse-wormedit
index 99daaa15e8579dfa8d8a889a593ba19294122c2d..06a261de805704128f6fd603206b17b6833927c2 100755 (executable)
--- a/parse-wormedit
+++ b/parse-wormedit
@@ -52,44 +52,30 @@ else {
        die "Unrecognised file type\n";
 }
 
+my $format = $opt{format};  # override distinct from image fallback
 if ($opt{output}) {{
        # derive format from file extension
-       if ($opt{output} =~ /\.yaml$/) {
-               $opt{format} //= 'yaml';
-       }
-       elsif ($opt{output} !~ /\.txt$/) {
-               $opt{format} //= 'pnm';
-               last;  # images are written directly to file
-       }
-
-       # redirect standard output to given file
-       open my $output, '>', $opt{output}
-               or die "Cannot output to '$opt{output}': $!";
-       select $output;
-}}
+       $format //= $1 if $opt{output} =~ /\.([^.]+)$/;
 
-# output with user-preferred formatting
-given ($opt{format}) {
-when ('pnm') {
-       require Games::Wormy::Render;
-
-       my @request;
-       if ($opt{levels}) {
-               # find all numeric values in argument
-               @request = $opt{levels} =~ /(\d+)/g;
+       if ($format ~~ [qw{ yaml json txt }]) {
+               # redirect standard output to given file
+               open my $output, '>', $opt{output}
+                       or die "Cannot output to '$opt{output}': $!";
+               select $output;
        }
        else {
-               # default to all singleplayer levels
-               @request = 0 .. $data->{levelcount}->{single} - 1;
+               # images are written directly to file
        }
-       @request or die "no levels found or specified\n";
+}}
+else {
+       $format //= 'txt';
+}
 
-       my $img = Games::Wormy::Render->composite(
-               map { $data->{levels}->[$_] } @request
-       ) or die "empty result for levels\n";
-       $img->write(
-               $opt{output} ? (file => $opt{output}) : (fh => \*STDOUT, type => 'pnm')
-       ) or die $img->errstr;
+# output with user-preferred formatting
+given ($format) {
+when ('json') {
+       require JSON;
+       say JSON->new->encode($data);
 }
 when ('yaml') {
        # full data in yaml (human-readable) formatting
@@ -113,7 +99,7 @@ when ('yaml') {
 
        print $yml;
 }
-default {
+when ('txt') {
        print $data->{name};
        print " ($data->{description})" if defined $data->{description};
        print "\n";
@@ -166,6 +152,32 @@ default {
        }
        print "\n";
 }
+default {
+       require Games::Wormy::Render;
+
+       my @request;
+       if ($opt{levels}) {
+               # find all numeric values in argument
+               @request = $opt{levels} =~ /(\d+)/g;
+       }
+       else {
+               # default to all levels
+               @request = 0 .. $data->{levelcount}->{total} - 1;
+       }
+       @request or die "no levels found or specified\n";
+
+       my $img = Games::Wormy::Render->composite(
+               map { $data->{levels}->[$_] } @request
+       ) or die "empty result for levels\n";
+       if ($format ~~ 'pbm') {
+               $img = $img->to_paletted({make_colors => 'mono'});
+               $opt{format} = 'pnm';
+       }
+       $img->write(
+               $opt{output} ? (file => $opt{output}) : (fh => \*STDOUT),
+               type => $opt{format},
+       ) or die $img->errstr;
+}
 }
 
 __END__
@@ -176,7 +188,7 @@ parse-wormedit - Wormy level data parser
 
 =head1 SYNOPSIS
 
- parse-wormedit [--format=<type>] [--levels=<number>] [--output=<file.ext>] <input.lvl>
+ parse-wormedit [--format=<type>] [--level=<number>] [--output=<file.ext>] <input.lvl>
 
 =head1 DESCRIPTION
 
@@ -196,6 +208,10 @@ Plain text summary of levelpack contents.
 
 All parsed data in YAML syntax.
 
+=item json
+
+Parsed data in JSON syntax.
+
 =item pnm, png, bmp, ...
 
 Image drawing of rendered levels.