pastebin - collaborative debugging

#!/usr/bin/perl
use strict;
use vars qw ( %unit @temp );
#
# Lists guids from WoWCombatLog.txt and tries to find collisions in the spawncounter section
#
# Written by Tanoh for EJ discussion, use freely :>
#
open(FIL,"WoWCombatLog.txt") or die "d, aoh!";
while( defined($_ = <FIL>) ) {
        s/^(.+?)  //;
        @temp = split(/,/);

        foreach my $i ( 1, 4 ) {
                if( (hex(substr($temp[$i],2,3)) & 0x00f) == 0x003 ) {
                        $unit{$temp[$i]} = {
                                'name' => substr($temp[$i+1],1,-1),
                                'counter' => substr($temp[$i],13,6),
                        };
                };
        };
};
close(FIL);


# check for counter collisions.
foreach my $key ( keys %unit ) {
        foreach my $otherkey ( keys %unit ) {
                next if( $otherkey eq $key );

                if( hex($unit{$key}->{'counter'}) == hex($unit{$otherkey}->{'counter'}) ) {
                        print "Collision! $key and $otherkey!\n";
                };
        };
};

# list counters and keys.
foreach my $key ( sort {hex($unit{$a}->{'counter'}) <=> hex($unit{$b}->{'counter'})} keys %unit ) {
        printf("%-25s: %s (%s)\n",$unit{$key}->{'name'},$unit{$key}->{'counter'},$key);
};