# Copyright 1999-2007 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $

inherit eutils flag-o-matic toolchain-funcs games

FILE_STEM="QuDos-${PV}-src"
PK3_FILE="QuDos-${PV}.pk3"
MY_PN="quake2"

DESCRIPTION="Enhanced Quake 2 engine"
HOMEPAGE="http://qudos.quakedev.com/"
SRC_URI="http://qudos.quakedev.com/linux/${MY_PN}/engines/QuDos/${FILE_STEM}.tar.bz2
	http://qudos.quakedev.com/linux/${MY_PN}/engines/QuDos/${PK3_FILE}"

LICENSE="GPL-2"
SLOT="0"
KEYWORDS="~amd64 ~x86"
IUSE="alsa audacious cdinstall debug dedicated demo dga ipv6 joystick mods opengl optimize-cflags qmax oss sdl textures"

UIDEPEND="alsa? ( media-libs/alsa-lib )
	audacious? ( media-sound/audacious )
	dga? ( x11-libs/libXxf86dga )
	sdl? ( media-libs/libsdl )
	media-libs/jpeg
	media-libs/libogg
	media-libs/libpng
	media-libs/libvorbis
	virtual/opengl
	virtual/glu
	x11-libs/libX11
	x11-libs/libXext
	x11-libs/libXxf86vm"
COMMON="opengl? ( ${UIDEPEND} )
	!opengl? ( sdl? ( ${UIDEPEND} ) )
	!opengl? ( !sdl? ( !dedicated? ( ${UIDEPEND} ) ) )"
DEPEND="${COMMON}
	x11-proto/xf86vidmodeproto"
RDEPEND="${COMMON}
	cdinstall? ( games-fps/quake2-data )
	demo? ( games-fps/quake2-demodata )
	textures? ( games-fps/quake2-textures )"

S=${WORKDIR}/${FILE_STEM}
dir=${GAMES_DATADIR}/${MY_PN}
libdir=${GAMES_LIBDIR}/${PN}

build_client() {
	if use opengl || use sdl || ! use dedicated ; then
		# Build default client
		return 0
	fi
	return 1
}

pkg_setup() {
	games_pkg_setup

	local alert_user

	if use sdl ; then
		ewarn "The opengl driver is more stable in QuDos than sdl."
		echo
		# No need to alert user
	fi

	if ! use qmax && build_client ; then
		elog "The 'qmax' graphical improvements are recommended."
		echo
		alert_user=y
	fi

	# Determine the default sound driver, in order of preference
	# snd_drv is not a local variable
	snd_drv=""
	[[ -z "${snd_drv}" ]] && use oss && snd_drv="oss"
	[[ -z "${snd_drv}" ]] && use sdl && snd_drv="sdl"
	[[ -z "${snd_drv}" ]] && use alsa && snd_drv="alsa"
	# Default if nothing else chosen
	[[ -z "${snd_drv}" ]] && snd_drv="oss"

	if build_client ; then
		elog "Selected the ${snd_drv} sound driver as the default."
		echo
		if [[ "${snd_drv}" = "alsa" ]] ; then
			# OSS is the default sound driver in the Makefile
			ewarn "The ALSA sound driver for this game is incomplete."
			ewarn "The 'oss' USE flag is recommended instead."
			echo
			alert_user=y
		fi
	fi

	if [[ -n "${alert_user}" ]] ; then
		ebeep
		epause
	fi
}

src_unpack() {
	unpack "${FILE_STEM}.tar.bz2"
	cd "${S}"

	rm docs/gnu.txt

	# Change default sound driver and its location
	sed -i \
		-e "s:\"oss\":\"${snd_drv}\":" \
		-e "s:\"\./snd:\"${libdir}/snd:" \
		src/client/snd_dma.c || die "sed snd_dma.c failed"

	# Fix Makefile for "debug" and "optimize-cflags" USE flags
	local march=$(get-flag -march)
	sed -i \
		-e "s:-fno-strict-aliasing::" \
		-e "s:-Werror ::" \
		-e "s:-march=\$(MACHINE):${march}:" \
		Makefile || die "sed Makefile failed"
}

src_compile() {
	yesno() { useq $1 && echo YES || echo NO ; }

	local client="NO"
	build_client && client="YES"

	local type="release"
	use debug && type="debug"

	# Favour OpenGL over SDL - it's more stable when switching resolutions.
	# OpenGL will be the default, if it is built.
	local build_sdl="NO" build_opengl=$(yesno opengl)
	use sdl && build_sdl="YES" && build_opengl="YES"

	# Prevent "signal 11" abort
	filter-flags -fomit-frame-pointer

	emake -j1 \
		BUILD_QUAKE2="${client}" \
		BUILD_DEDICATED=$(yesno dedicated) \
		BUILD_GLX=${build_opengl} \
		BUILD_SDLGL=${build_sdl} \
		BUILD_SDL_SND=${build_sdl} \
		BUILD_ALSA_SND=$(yesno alsa) \
		BUILD_OSS_SND=$(yesno oss) \
		WITH_XMMS=$(yesno audacious) \
		WITH_DGA_MOUSE=$(yesno dga) \
		WITH_JOYSTICK=$(yesno joystick) \
		DATADIR="${dir}" \
		LOCALBASE=/usr \
		LIBDIR="${GAMES_LIBDIR}/${PN}" \
		WITH_QMAX=$(yesno qmax) \
		BUILD_3ZB2=$(yesno mods) \
		BUILD_CTF=$(yesno mods) \
		BUILD_JABOT=$(yesno mods) \
		BUILD_ROGUE=$(yesno mods) \
		BUILD_XATRIX=$(yesno mods) \
		BUILD_ZAERO=$(yesno mods) \
		WITH_BOTS=$(yesno mods) \
		HAVE_IPV6=$(yesno ipv6) \
		OPTIMIZE=$(yesno optimize-cflags) \
		CC="$(tc-getCC)" \
		WITH_X86_ASM=NO \
		WITH_DATADIR=YES \
		WITH_LIBDIR=YES \
		BUILD_DEBUG_DIR=release \
		BUILD_RELEASE_DIR=release \
		TYPE="${type}" \
		|| die "emake failed"
}

src_install() {
	# Will probably change to png in next version
	local icon=${PN}.gif

	if build_client ; then
		newgamesbin ${MY_PN}/QuDos ${PN} \
			|| die "newgamesbin QuDos failed"
		newicon docs/q2_orig/quake2.gif "${icon}" \
			|| die "newicon failed"

		if use demo ; then
			games_make_wrapper ${PN}-demo "${PN} +set game demo"
			make_desktop_entry ${PN}-demo "QuDos (Demo)" "${icon}"
		else
			make_desktop_entry ${PN} "QuDos" "${icon}"
		fi
	fi

	if use dedicated ; then
		newgamesbin ${MY_PN}/QuDos-ded ${PN}-ded \
			|| die "newgamesbin QuDos-ded failed"
	fi

	insinto "${libdir}"
	doins -r ${MY_PN}/* || die "doins libs failed"
	rm "${D}/${libdir}"/QuDos

	insinto "${libdir}"/baseq2
	newins "${DISTDIR}/${PK3_FILE}" qudos.pk3 || die "doins ${PK3_FILE} failed"

	dodoc $(find docs -name \*.txt) docs/q2_orig/README*

	prepgamesdirs
}