Bugzilla Bug 223271

After playing a few seconds, fillets crashes with these errors:

main.cpp:117: ERROR script failure;
error='...are/games/fish-fillets/script/share/level_update.lua:37: attempt to
call field 'mod' (a nil value)
stack traceback:
        ...are/games/fish-fillets/script/share/level_update.lua:37: in function
<...are/games/fish-fillets/script/share/level_update.lua:31>
        ...are/games/fish-fillets/script/share/level_update.lua:68: in function
`animateUnits'
        ...hare/games/fish-fillets/script/share/level_start.lua:76: in function
`script_update'
        [string "script_update()"]:1: in main chunk'

Reproducible: Always

Steps to Reproduce:
1. Start fillets and play a few seconds

Actual Results:  
fillets exits with the errors pasted above.

Expected Results:  
fillets continues to run.

fillets is built against dev-lang/lua-5.1.3-r1 on my system.

$ emerge --info
Portage 2.1.4.4 (default-linux/x86/2007.0/desktop, gcc-4.1.2, glibc-2.6.1-r0,
2.6.24-tuxonice-r4-mlc i686)
=================================================================
System uname: 2.6.24-tuxonice-r4-mlc i686 Intel(R) Core(TM)2 Duo CPU T7300 @
2.00GHz
Timestamp of tree: Tue, 20 May 2008 20:04:01 +0000
app-shells/bash:     3.2_p33
dev-java/java-config: 1.3.7, 2.1.6
dev-lang/python:     2.4.4-r9
dev-python/pycrypto: 2.0.1-r6
sys-apps/baselayout: 1.12.11.1
sys-apps/sandbox:    1.2.18.1-r2
sys-devel/autoconf:  2.13, 2.61-r1
sys-devel/automake:  1.4_p6, 1.5, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2, 1.10.1
sys-devel/binutils:  2.18-r1
sys-devel/gcc-config: 1.4.0-r4
sys-devel/libtool:   1.5.26
virtual/os-headers:  2.6.23-r3
ACCEPT_KEYWORDS="x86"
CBUILD="i686-pc-linux-gnu"
CFLAGS="-O2 -march=prescott -pipe -fomit-frame-pointer"
CHOST="i686-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/kde/3.5/env /usr/kde/3.5/share/config
/usr/kde/3.5/shutdown /usr/share/config"
CONFIG_PROTECT_MASK="/etc/env.d /etc/env.d/java/ /etc/fonts/fonts.conf
/etc/gconf /etc/revdep-rebuild /etc/splash /etc/terminfo /etc/udev/rules.d"
CXXFLAGS="-O2 -march=prescott -pipe -fomit-frame-pointer"
DISTDIR="/usr/portage/distfiles"
FEATURES="distlocks metadata-transfer parallel-fetch sandbox sfperms strict
unmerge-orphans userfetch"
GENTOO_MIRRORS="ftp://ftp.ussg.iu.edu/pub/linux/gentoo
ftp://gentoo.chem.wisc.edu/gentoo/ http://open-systems.ufl.edu/mirrors/gentoo
http://gentoo.chem.wisc.edu/gentoo/
ftp://mirror.utdlug.org/linux/distributions/gentoo/
ftp://gentoo.mirrors.pair.com/ http://gentoo.mirrors.pair.com/
ftp://gentoo.mirrors.tds.net/gentoo"
LANG="en_US.utf8"
LINGUAS="en_US en"
MAKEOPTS="-j3"
PKGDIR="/usr/portage/packages"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress
--force --whole-file --delete --stats --timeout=180 --exclude=/distfiles
--exclude=/local --exclude=/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
USE="X a52 aac acl acpi aiglx alsa arts bash-completion battery berkdb
bluetooth bzip2 cairo cdda cddb cdparanoia cdr cli cpudetection cpufreq
cracklib crypt css cups curl dbus depth32 device-mapper dga dialup dillo
directfb divx dri dts dvd dvdr dvdread emboss encode esd evo expat
extra-cardsets fam fat fbcon ffmpeg firefox flac foomaticdb fortran ftp fuse gd
gdbm gif gimp gimpprint gmedia gnokii gnutls gpm gstreamer hal hddtemp iconv
icu idn imagemagick imap ipw4965 irc isdnlog jabber jpeg kde kdeenablefinal
kdehiddenvisibility kdexdeltas kerberos lame ldap libnotify lm_sensors
logitech-mouse logrotate mad matroska mbox midi mikmod mime mmx mmxext
mozdevelop mozdom moznocompose moznoirc moznomail moznoroaming mp3 mpd mpeg
mplayer mudflap musicbrainz nano-syntax ncurses nls nntp nptl nsplugin ntfs
nvidia offensive office ogg opengl openmp pam pcmcia pcre pdf perl plotutils
plugins pmu png ppds pppd profile pulseaudio python qt3support qt4 quicktime
readline reflection reiserfs resolvconf rss sdl sdl-image sensord session skins
slang smp spell spl sse sse2 ssl ssse3 startup-notification statistics svg svga
symlink tcpd theora threads tidy tiff tordns truetype unicode usb uudeview
uuencode vcd visualization vorbis wifi win32codecs wma wmp x86 xcomposite xface
xforms xml xorg xosd xscreensaver xv xvmc zip zlib" ALSA_CARDS="hda-intel"
ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file
hooks iec958 ioplug ladspa lfloat linear meter mulaw multi null plug rate route
share shm softvol" APACHE2_MODULES="actions alias auth_basic authn_alias
authn_anon authn_dbm authn_default authn_file authz_dbm authz_default
authz_groupfile authz_host authz_owner authz_user autoindex cache dav dav_fs
dav_lock deflate dir disk_cache env expires ext_filter file_cache filter
headers include info log_config logio mem_cache mime mime_magic negotiation
rewrite setenvif speling status unique_id userdir usertrack vhost_alias"
ELIBC="glibc" FOO2ZJS_DEVICES="hp1020" INPUT_DEVICES="evdev keyboard mouse
synaptics" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780
lb216 lcdm001 mtxorb ncurses text" LINGUAS="en_US en" USERLAND="GNU"
VIDEO_CARDS="nvidia vesa"
Unset:  CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LC_ALL, LDFLAGS,
PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS,
PORTDIR_OVERLAY

hmmm.... no worky with lua 5.1.3-r1 but it does work for me with 5.1.2-r2.

....  needs the deprecated use flag turned on for the newer lua.

fixed in portage.