graphplay to draw SVG graphs of gameplay statistics

Parses game stats output of capture script, and draws progression of
minerals, gas, and units over time per player.

SVG is simple enough to write manually (template at *DATA), but
produces essentially the same as SVG::TT::Graph::TimeSeries would
(except much faster and easier to understand/modify).

diff --git a/graphplay b/graphplay
new file mode 100755 (executable)
index 0000000..d6baebf
--- /dev/null
+++ b/graphplay
@@ -0,0 +1,132 @@
+#!/usr/bin/env perl
+use strict;
+use warnings;
+
+use Template;
+use List::Util;
+use Data::Dumper;
+
+my %area = (
+       fieldxmin => 45,
+       fieldxmax => 1590,
+       fieldymin => 10,
+       fieldymax => 575,
+       xmax => 1600,
+       ymax => 600,
+);
+$area{fieldxsize} = $area{fieldxmax} - $area{fieldxmin};
+$area{fieldysize} = $area{fieldymax} - $area{fieldymin};
+
+my @lines;
+my @max = (0) x 4;
+my $maxtime = 0;
+my $player = 0;
+
+for my $input (@ARGV) {
+       open my $datafile, '<', $input or next;
+       my @data;
+       my $lasttime;
+       while (defined ($_ = readline $datafile)) {
+               my ($frame, $time, @vars) = split /\t/, $_;
+               $frame =~ /^\d+:$/ or next;
+               if ($time !~ /^\d+$/) {
+                       defined $lasttime or next;
+                       $time = $lasttime + 1;
+                       $lasttime = undef;
+               } else {
+                       $lasttime = $time;
+               }
+               /^\d+$/ or $_ = undef for @vars;
+               push @{$data[$time]} => \@vars;
+               defined $vars[$_] and $vars[$_] > $max[$_] and $max[$_] = $vars[$_]
+                       for 0 .. $#vars;
+       }
+       $maxtime = $#data if $#data > $maxtime;
+       close $datafile;
+
+       for my $time (0 .. $#data) {
+               my $vals = $data[$time];
+               for my $subtime (0 .. $#$vals) {
+                       defined $vals->[$subtime]->[$_] and push @{$lines[$_][$player]} => [
+                               ($time + $subtime/@$vals), # x
+                               $vals->[$subtime]->[$_] # y
+                       ] for 0 .. 3;
+               }
+       }
+
+       $player++;
+}
+
+my @norm = ((map {$area{fieldysize} / $_} @max), $area{fieldxsize} / $maxtime);
+
+my $xsteps = 25;
+my $xstep = $maxtime / $xsteps;
+my @xaxis = map [$area{fieldxmin} + $_ * $norm[4], sprintf '%d:%02d', $_/3600, $_/60%60],
+       map $_*$xstep, 0 .. $xsteps-1;
+
+my $ysteps = 10;
+my @yaxis;
+for my $i (0 .. 3) {
+       my $ystep = $max[$i] / $ysteps;
+       $ystep = 10 ** int (log($ystep * 4) / log(10));
+       $ystep /= 2 while $ystep * $ysteps > $max[$i];
+       $yaxis[$i] = [
+               map [$area{fieldymax} - $_ * $norm[$i], $_],
+                       map $_*$ystep, 0 .. int $max[$i] / $ystep
+       ];
+}
+
+undef $/;
+my $svg = Template->new({POST_CHOMP => 1, BLOCKS => {timeline => readline DATA}});
+
+for ([0 => "min", "Minerals"], [1 => "gas", "Gas"], [2 => "unit", "Units"]) {
+       my ($line, $filename, $title) = @$_;
+       open my $output, '>', "$filename.svg";
+       $svg->process('timeline', {
+               title => "$title timeline for /replay/20080201md4x4",
+               paths => [
+                       map { "\n\tM " . join "\tL ", map sprintf("%s %s\n",
+                               $area{fieldxmin} + $_->[0] * $norm[4],
+                               $area{fieldymax} - $_->[1] * $norm[$line]
+                       ), grep defined, @$_ } @{$lines[$line]}
+               ],
+               xaxis => \@xaxis,
+               yaxis => $yaxis[$line],
+               area => \%area,
+       }, $output) or die $svg->error;
+}
+
+__DATA__
+<?xml version="1.0"?>
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.0//EN"
+ "http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd">
+
+<?xml-stylesheet href="http://sc.shiar.net/apm.css" type="text/css"?>
+
+<svg width="100%" height="100%" viewBox="0 0 [% area.xmax %] [% area.ymax %]"
+ xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+<title>[% title %]</title>
+
+<rect x="0" y="0" width="[% area.xmax %]" height="[% area.ymax %]" class="svgBackground" />
+<rect x="[% area.fieldxmin %]" y="[% area.fieldymin %]" width="[% area.fieldxsize %]" height="[% area.fieldysize %]" class="graphBackground" />
+
+<path d="M[% area.fieldxmin %] [% area.fieldymin %] v[% area.fieldysize %]" class="axis" id="xAxis"/>
+[% FOREACH entry = xaxis %]
+<text x="[% entry.0 %]" y="[% area.fieldymax + 15 %]" class="xAxisLabels"> [% entry.1 %]</text>
+[% END %]
+
+<path d="M[% area.fieldxmin %] [% area.fieldymax %] h[% area.fieldxsize %]" class="axis" id="yAxis"/>
+[% FOREACH entry = yaxis %]
+<path d="M[% area.fieldxmin %] [% entry.0 %] h[% area.fieldxsize %]" class="guideLines" />
+<text x="[% area.fieldxmin - 5 %]" y="[% entry.0 %]" class="yAxisLabels">[% entry.1 %]</text>
+[% END %]
+
+<g class="data">
+[% count = 0 %]
+[% FOREACH path = paths %][% count = count + 1 %]
+<path d="[% path %]" class="line[% count %]" />
+[% END %]
+</g>
+
+</svg>
+