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# Copyright 1999-2012 Gentoo Foundation

# Distributed under the terms of the GNU General Public License v2

# $Header: $

EAPI=4

inherit check-reqs eutils games unpacker

MY_PN="${PN//-/_}"

#MY_REV="-2"

MY_ARCH="${ARCH/amd64/x86_64}"

DESCRIPTION="Amnesia: The Dark Descent is a first person survival horror. A game about immersion, discovery and living through a nightmare."

HOMEPAGE="http://www.amnesiagame.com/"

SRC_URI="${MY_PN}_${PV}.sh"

RESTRICT="fetch strip"

LICENSE="Frictional_Games-EULA"

SLOT="0"

KEYWORDS="~amd64 ~x86"

IUSE="doc linguas_de linguas_es linguas_fr linguas_it linguas_ru"

DEPEND="app-arch/xz-utils"

RDEPEND="media-libs/freealut

	>=media-libs/glew-1.5

	media-libs/jpeg:62

	media-libs/libpng:1.2

	media-libs/libtheora

	media-libs/libvorbis

	media-libs/openal

	media-libs/sdl-image

	media-libs/sdl-ttf

	sys-libs/zlib

	x11-libs/libxcb

	x11-libs/libXext

	virtual/glu

	virtual/opengl"

CHECKREQS_DISK_BUILD="3500M"

S="${WORKDIR}/${PN}"

GAMEDIR="${GAMES_PREFIX_OPT}/${PN}"

pkg_nofetch() {

	einfo ""

	einfo "Please buy and download \"${SRC_URI}\" from:"

	einfo "  ${HOMEPAGE}"

	einfo "and move/link it to \"${DISTDIR}\""

	einfo ""

}

pkg_setup() {

	games_pkg_setup

}

src_unpack() {

	einfo "\nUnpacking files.  This will take several minutes.\n"

	mkdir "${S}" || die "mkdir "${S}" failed"

	cd "${S}" || die "cd '${S}' failed"

	unpack_makeself || die "unpack_makeself failed"

	mv "subarch" "installer.tar.lzma" || die "move \"subarch\" failed"

	unpack "./installer.tar.lzma" || die "unpack \"installer.tar.lzma\" failed"

	mv "instarchive_all" "../${P}.tar.lzma" || die "move 'instarchive_all' failed"

	mv "instarchive_all_${MY_ARCH}" "../${P}-${MY_ARCH}.tar.lzma" || die "move 'instarchive_all_${MY_ARCH}' failed"

	cd "${WORKDIR}" || die "cd '${WORKDIR}' failed"

	echo ">>> Unpacking ./${P}.tar.lzma to ${WORKDIR}"

	#Standard unpack fails due to poor quality of archive

	xz -F lzma -d -c "./${P}.tar.lzma" 2>/dev/null | tar xf - || die "unpacking '${P}.tar.lzma' failed"

	rm "./${P}.tar.lzma"

	unpack "./${P}-${MY_ARCH}.tar.lzma" || die "unpack '${P}-${MY_ARCH}.tar.lzma' failed"

	rm "./${P}-${MY_ARCH}.tar.lzma"

}

src_prepare() {

	# libfltk.so.1.1 is needed because it's no longer in portage

	mv "${WORKDIR}"/Amnesia/libs*/all/libfltk* "${WORKDIR}"/Amnesia/libs*/ || die "libfltk extraction failed"

	#reset ${S} for outprocessing

	rm -rf "${S}"

	mv "${WORKDIR}/Amnesia" "${S}" || die "mv 'Amnesia' failed"

	cd ${S}

	# Files to remove.

	REMOVE="libs*/*

		*.pdf

		*.rtf

		*.sh"

	# Files to keep.

	# Bundled LibIL (media-libs/devil) isn't in portage as too old

	KEEP="libs*/libIL*

		libs*/libfltk*"

	# Collect infos about languages...

	LINGUAS_ARRAY=()		# Linguas - string: E.g.: "linguas_en"

	LANG_ARRAY=()			# Lang - string: E.g.: "en"

	LANGUAGE_ARRAY=()		# Language - string: E.g.: "english"

	LANGUAGE_SHORT_ARRAY=()		# Language Short - string: E.g.: "eng"

	USE_ARRAY=()			# Used - bool (0,1)

	local linguas_in_use="0"

	for use in ${IUSE}

	do

		if [[ "${use%%_*}" == "linguas" ]]

		then

			local tmp="${use}"

			LINGUAS_ARRAY=(${LINGUAS_ARRAY[@]} "${tmp}")

			tmp="${tmp##linguas_}"

			LANG_ARRAY=(${LANG_ARRAY[@]} "${tmp}")

			case "${tmp}" in

				"de") tmp="german";;

				"es") tmp="spanish";;

				"fr") tmp="french";;

				"it") tmp="italian";;

				"ru") tmp="russian";;

				*) tmp="";;

			esac

			LANGUAGE_ARRAY=(${LANGUAGE_ARRAY[@]} "${tmp}")

			LANGUAGE_SHORT_ARRAY=(${LANGUAGE_SHORT_ARRAY[@]} "${tmp:0:3}")

			if use ${use}

			then

				USE_ARRAY=(${USE_ARRAY[@]} "1")

				linguas_in_use="$(( ${linguas_in_use} + 1 ))"

			else

				USE_ARRAY=(${USE_ARRAY[@]} "0")

			fi

		fi

	done

	# ...then process them.

	local n="0"

	local docs_eng="0"

	while [[ "${n}" -lt "${#LINGUAS_ARRAY[@]}" ]]

	do

		if [[ "${USE_ARRAY[${n}]}" -gt "0" ]]

		then

			# If only one lang is selected, use it as default.

			if [[ "${linguas_in_use}" == "1" ]]

			then

				sed -e "s#english.lang#${LANGUAGE_ARRAY[${n}]}.lang#g" \

				    -i config/*main_init.cfg || die "sed \"config/*main_init.cfg\" failed"

			fi

		else

			REMOVE="${REMOVE} $(find config -type f -name "*${LANGUAGE_ARRAY[${n}]}.lang")"

			if [[ -d "lang/${LANGUAGE_SHORT_ARRAY[${n}]}" ]]

			then

				REMOVE="${REMOVE} lang/${LANGUAGE_SHORT_ARRAY[${n}]}"

			fi

		fi

		if use doc

		then

			if [[ -f "EULA_${LANG_ARRAY[${n}]}.rtf" && -f "Manual_${LANG_ARRAY[${n}]}.pdf" ]]

			then

				KEEP="${KEEP} EULA_${LANG_ARRAY[${n}]}.rtf Manual_${LANG_ARRAY[${n}]}.pdf"

			else

				local docs_eng="1"

			fi

		fi

		n="$(( ${n} + 1 ))"

	done

	if use doc && [[ ( "${linguas_in_use}" == "0" || "${docs_eng}" != "0" ) ]]

	then

		KEEP="${KEEP} EULA_en.rtf Manual_en.pdf Remember*.pdf"

	fi

	einfo " Removing useless files ..."

	for remove in ${REMOVE}

	do

		local removable="1"

		for keep in ${KEEP}

		do

			if [[ "${remove}" == "${keep}" && "${removable}" == "1" ]]

			then

				local removable="0"

			fi

		done

		if [[ "${removable}" == "1" ]]

		then

			rm -r "${S}/"${remove} &> /dev/null

		fi

	done

	if use amd64

	then

		mv "Amnesia.bin64" "Amnesia.bin" || die "mv \"Amnesia.bin64\" failed"

		mv "Launcher.bin64" "Launcher.bin" || die "mv \"Launcher.bin64\" failed"

	fi

}

src_install() {

	# Install data

	insinto "${GAMEDIR}"

	einfo " Installing game data files ..."

	for directory in $(find * -maxdepth 0 -type d ! -name "libs*")

	do

		doins -r ${directory} || die "doins game data files failed"

	done

	# Other files

	find . -maxdepth 1 -type f ! -name "*.bin" \

				   ! -name "*.pdf" \

				   ! -name "*.png" \

				   ! -name "*.rtf" \

				   ! -name "*.sh" \

				   -exec doins '{}' \; || die "doins other files failed"

	# Install libraries and executables

	einfo " Installing libraries and executables ..."

	if use amd64

	then

		local libsdir="${GAMEDIR}/libs64"

	else

		local libsdir="${GAMEDIR}/libs"

	fi

	exeinto "${libsdir}"

	doexe libs*/* || die "doexe \"libs\" failed"

	dosym "/usr/$(get_libdir)/libGLEW.so" "${libsdir}/libGLEW.so.1.5"

	exeinto "${GAMEDIR}"

	doexe *.bin || die "doexe \".bin\" binaries failed"

	# Make game wrapper

	local wrapper="${S}/${PN}"

	local ext="${PN}-justine"

	cat << EOF > "${wrapper}" || die "echo failed"

#!/bin/sh

cd "${GAMEDIR}"

if [[ "\$(basename "\${0}")" == "${ext}" ]]

then

	params="ptest \${@}"

fi

if [[ -w "\${HOME}/.frictionalgames/Amnesia/Main/main_settings.cfg" ]]

then

	exec ./Amnesia.bin \${params:-"\${@}"}

else

	exec ./Launcher.bin "\${@}"

fi

EOF

	# Install wrapper

	dogamesbin "${wrapper}" || die "dogamesbin ${wrapper} failed"

	dosym "${PN}" "${GAMES_BINDIR}/${ext}"

	# Install icon and desktop file

	newicon "Amnesia.png" "${PN}.png" || die "newicon failed"

	make_desktop_entry "${PN}" "Amnesia: The Dark Descent" "/usr/share/pixmaps/${PN}.png" || die "make_desktop_entry failed"

	make_desktop_entry "${ext}" "Amnesia: The Dark Descent - Justine" "/usr/share/pixmaps/${PN}.png" || die "make_desktop_entry failed"

	# Install documentation

	if use doc

	then

		dodoc *.rtf *.pdf || die "dodoc failed"

	fi

	# Setting permissions.

	einfo " Setting permissions ..."

	prepgamesdirs

}

pkg_postinst() {

	ewarn ""

	ewarn "Amnesia: The Dark Descent needs video drivers that provide a complete".

	ewarn "GLSL 1.20 implementation.  For more information, please visit:"

	ewarn "http://www.frictionalgames.com/forum/thread-3760.html"

	ewarn ""

	ewarn "--------------------------------------------------------------------"

	ewarn ""

	ewarn "Saved games from previous versions may not be fully compatible."

	ewarn ""

}