# Copyright 1999-2006 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $

inherit eutils flag-o-matic games versionator

DESCRIPTION="Enhanced engine for iD Software's Quake 1"
HOMEPAGE="http://icculus.org/twilight/darkplaces/"

MY_PV=$(replace_version_separator 1 '' )
SRC_URI="http://icculus.org/twilight/darkplaces/files/darkplacesenginelinux${MY_PV}.zip"

LICENSE="GPL-2"
SLOT="0"
KEYWORDS="~amd64 ~x86"
IUSE="alsa cdinstall cdsound dedicated opengl oss sdl"
RESTRICT="nomirror"

RDEPEND="sys-libs/glibc
	alsa? ( media-libs/alsa-lib )
	cdinstall? ( games-fps/quake1-data )
	opengl? ( virtual/opengl
		|| (
			(
				x11-libs/libX11
				x11-libs/libXau
				x11-libs/libXdmcp
				x11-libs/libXext
				x11-libs/libXxf86dga
				x11-libs/libXxf86vm )
			virtual/x11 )
		)
	sdl? (
		media-libs/libsdl
		media-libs/sdl-mixer
		|| (
			(
				x11-libs/libX11
				x11-libs/libXau
				x11-libs/libXdmcp
				x11-libs/libXext )
			virtual/x11 )
		)"
DEPEND="${RDEPEND}
	app-arch/unzip"

S=${WORKDIR}/${PN}
dir=${GAMES_DATADIR}/quake1

pkg_setup() {
	(use opengl || use sdl || use dedicated) || \
		die "At least one of the USE flags 'opengl', 'sdl' and 'dedicated' are required."

	games_pkg_setup
}

src_unpack() {
	unpack ${A}

	cd "${WORKDIR}"
	unzip ${PN}enginesource${MY_PV}.zip || die "unzip failed"
	cd "${S}"

	# Only CFLAGS optimization is the -march flag
	local MARCH=$(get-flag -march)
	sed -i "s/CPUOPTIMIZATIONS=/CPUOPTIMIZATIONS=${MARCH}/" makefile.inc

	use cdsound || sed -i "s/cd_linux/cd_null/" makefile.inc

	# Default sound is alsa.
	if ! use alsa ; then
		if use oss ; then
			sed -i "s/DEFAULT_SNDAPI=ALSA/DEFAULT_SNDAPI=OSS/" \
				makefile
		else
			sed -i "s/DEFAULT_SNDAPI=ALSA/DEFAULT_SNDAPI=NULL/" \
				makefile
		fi
	fi
}

src_compile() {
	if use opengl ; then
		emake cl-release || die "emake cl-release failed"
	fi

	if use sdl ; then
		emake sdl-release || die "emake sdl-release failed"
	fi

	if use dedicated ; then
		emake sv-release || die "emake sv-release failed"
	fi
}

src_install() {
	if use opengl ; then
		newgamesbin ${PN}-glx ${PN}-glx.bin
		games_make_wrapper ${PN}-glx ${PN}-glx.bin "${dir}"
	fi

	if use sdl ; then
		newgamesbin ${PN}-sdl ${PN}-sdl.bin
		games_make_wrapper ${PN}-sdl ${PN}-sdl.bin "${dir}"
	fi

	if use dedicated ; then
		newgamesbin ${PN}-dedicated ${PN}-dedicated.bin
		games_make_wrapper ${PN}-dedicated ${PN}-dedicated.bin "${dir}"
	fi

	dodoc ${PN}.txt ChangeLog todo

	prepgamesdirs
}

pkg_postinst() {
	einfo "Put the data files into ${GAMES_DATADIR}/quake1/id1"

	games_pkg_postinst
}