#!/bin/sh
# $OpenBSD$

# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
# Doomsday engine v1.8.6 wrapper, v1.0                                  #
#   Author - Ryan Freeman <ryan@slipgate.org>                           #
#   provides a better interface to the engine to make startup options   #
#   easier to use and to keep output files in a $HOME/.doomsday/ dir    #
#   and not spew in $PWD                                                #
# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #

usage () {
        print "Doomsday Engine 1.8.6\n\nUsage: doomsday game args\n";
        print "Normal Doom/Heretic/Hexen arguments such as -file for loading";
        print "PWADs or other game options may be used after selecting one";
        print "of the games below:\n";
        print " -doom      Doom / Ultimate Doom";
        print " -doom2     Doom II: Hell on Earth";
        print " -plutonia  Final Doom: Plutonia Experiment";
        print " -tnt       Final Doom: Evilution";
        print " -heretic   Heretic / Heretic: Shadow of the Serpent Riders";
        print " -hexen     Hexen: Beyond Heretic\n";
        print "NOTE: Data files from above-mentioned games must be installed";
        print "into \$DOOMWADDIR (currently $DOOMWADDIR) else";
        print "you will get an IWAD load error when choosing a non-existent";
        print "game data file. Also, -file PWAD args need to be absolute.\n";
}

# set DOOMWADDIR to standard location
DOOMWADDIR=/usr/local/share/games/doom

# verify game specified, show usage
[[ $# < 1 ]] && { 
	usage
	print "ERROR: no game specified";
	exit 1;
}

# sanity check. verify doomsday configuration directories exist
[[ ! -d ~/.doomsday ]] && mkdir ~/.doomsday
[[ ! -d ~/.doomsday/jdoom ]] && mkdir ~/.doomsday/jdoom
[[ ! -d ~/.doomsday/jheretic ]] && mkdir ~/.doomsday/jheretic
[[ ! -d ~/.doomsday/jhexen ]] && mkdir ~/.doomsday/jhexen

# run selected game and store configs and other output files properly
[[ $1 = -doom ]] && {
	shift 1
	doomsday-bin -game jdoom -userdir ~/.doomsday/jdoom -iwad \
		${DOOMWADDIR}/doom.wad "$@"
}
[[ $1 = -doom2 ]] && {
	shift 1 
	doomsday-bin -game jdoom -userdir ~/.doomsday/jdoom -iwad \
		${DOOMWADDIR}/doom2.wad $*
}
[[ $1 = -plutonia ]] && {
	shift 1
	doomsday-bin -game jdoom -userdir ~/.doomsday/jdoom -iwad \
		${DOOMWADDIR}/plutonia.wad $*
}
[[ $1 = -tnt ]] && {
	shift 1
	doomsday-bin -game jdoom -userdir ~/.doomsday/jdoom -iwad \
		${DOOMWADDIR}/tnt.wad $*
}
[[ $1 = -heretic ]] && {
	shift 1
	doomsday-bin -game jheretic -userdir ~/.doomsday/jheretic -iwad \
		${DOOMWADDIR}/heretic.wad $*
}
[[ $1 = -hexen ]] && {
	shift 1
	doomsday-bin -game jhexen -userdir ~/.doomsday/jhexen -iwad \
		${DOOMWADDIR}/hexen.wad $*
}