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#!/bin/sh
###############################################################################
#
## LIFLG Startup Script
#
# Copyright (C) 2004-2007  Team LIFLG http://www.liflg.org/
#
#
# This script is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
###############################################################################
#
# The game binary
GAME_BINARY="et.x86"

# Subdirectory
SUBDIR="."

# Library directory
LIBDIR=""

# Additional commandline options for mods etc.
CMD_ARGS="+set fs_game tcetest"

# Set the sdl audio driver (default: oss)
# More at http://icculus.org/lgfaq/#setthatdriver
#SDL_AUDIODRIVER="alsa"

# Use US keyboard layout
#USLAYOUT="true"

# Set gamma for the game
#GAMMA="1.000"

# If you want to start the game on a second X server
# comment out the XSERVER* options.
# Useful if you run Xgl ;-)
#XSERVER="Xorg"

# for options run Xorg -help
#XSERVER_OPTIONS="-reset -terminate -br -quiet -nolisten tcp -to 30"

# display number
#XSERVER_DISPLAY=":1.0"

###############################################################################
## DO NOT EDIT BELOW THIS LINE
###############################################################################
export LANG="POSIX"

test -n "${SDL_AUDIODRIVER}" && export SDL_AUDIODRIVER
if [ -n "${XSERVER_DISPLAY}" ]; then
	DISPLAY=${XSERVER_DISPLAY}
	export DISPLAY
fi

# readlink replacement for older bash versions
readlink() {
	path=$1
 
	if [ -L "$path" ]
	then
		ls -l "$path" | sed 's/^.*-> //'
	else
		return 1
	fi
}

setuslayout() {
	setxkbmap -model pc101 us -print | xkbcomp - ${DISPLAY} 2>/dev/null
}
trap setxkbmap EXIT

resetgamma() {
	if [ -n "${XGAMMA}" ]
	then
		exec ${XGAMMA}
	fi
}
trap resetgamma EXIT

SCRIPT="$0"
COUNT=0
while [ -L "${SCRIPT}" ]
do
	SCRIPT=$(readlink ${SCRIPT})
	COUNT=$(expr ${COUNT} + 1)
	if [ ${COUNT} -gt 100 ]
	then
		echo "Too many symbolic links"
		exit 1
	fi
done
GAMEDIR=$(dirname ${SCRIPT})

# start second X server
if [ -n "${XSERVER}" ]; then
	${XSERVER} ${XSERVER_OPTIONS} ${XSERVER_DISPLAY} 2>/dev/null &
	xterm -e sleep 5 &
fi

#games are better played with us keyboard layout
if [ "${USLAYOUT}" = "true" ]; then
	setuslayout
fi

# save gamma value and set wanted
if [ -n "${GAMMA}" ]; then
	XGAMMA=$(xgamma 2>&1 | sed -e "s/.*Red \(.*\), Green \(.*\), Blue \(.*\)/xgamma -rgamma\1 -ggamma\2 -bgamma\3/")
	xgamma -gamma ${GAMMA}
fi

cd ${GAMEDIR}
cd ${SUBDIR}

# export game library directory
test -n "${LIBDIR}" && export LD_LIBRARY_PATH="${LD_LIBRARY_PATH}:${GAMEDIR}/${LIBDIR}"

# start the game
./${GAME_BINARY} ${CMD_ARGS} "$@"
EXITCODE="$?"

if [ "${USLAYOUT}" = "true" ]; then
	# reset kb layout
	setxkbmap >/dev/null 2>&1

	# reset xmodmap
	test -r ${HOME}/.Xmodmap && xmodmap ${HOME}/.Xmodmap >/dev/null 2>&1
fi

# reset gamma
resetgamma

exit ${EXITCODE}