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# Copyright 1999-2024 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=8

PYTHON_COMPAT=( python3_{9..10} )
inherit cmake flag-o-matic python-any-r1 qmake-utils readme.gentoo-r1 xdg

DESCRIPTION="A modern gaming engine for Doom, Heretic, and Hexen"
HOMEPAGE="https://www.dengine.net"
SRC_URI="https://downloads.sourceforge.net/project/deng/Doomsday%20Engine/${PV}/${P}.tar.gz"

LICENSE="GPL-3+ LGPL-3+"
SLOT="0"
KEYWORDS="~amd64 ~arm ~arm64 ~ppc64 ~x86"
IUSE="demo +display-mode freedoom fluidsynth openal tools"

RDEPEND="
	dev-qt/qtcore:5=
	dev-qt/qtgui:5=[-gles2-only]
	dev-qt/qtnetwork:5=
	dev-qt/qtopengl:5=
	dev-qt/qtwidgets:5=
	dev-qt/qtx11extras:5=
	media-libs/assimp:=
	net-misc/curl
	sys-libs/zlib
	x11-libs/libX11
	display-mode? (
		x11-libs/libXrandr
		x11-libs/libXxf86vm
	)
	fluidsynth? ( media-sound/fluidsynth:= )
	openal? ( media-libs/openal )
	tools? ( sys-libs/ncurses:0= )
"
DEPEND="${RDEPEND}"
BDEPEND="${PYTHON_DEPS}
	virtual/pkgconfig
"
PDEPEND="
	demo? ( games-fps/doom-data )
	freedoom? ( games-fps/freedoom )
"

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

DOC_CONTENTS="You need to copy Doom, Doom 2, Chex Quest, Heretic, Hexen, HexenDD, or Doom64 wads to a folder of your choice and then tell the game engine where that folder is. This is different to older versions, which had separate launchers for each game and required the files to be in a specific place."

src_prepare() {
	cmake_src_prepare

	# Fix QA warning for "installing to one or more unexpected paths"
	sed -e "10s:/texc:/${PF}:" -i tools/texc/CMakeLists.txt || die
}

src_configure() {
	# -Werror=odr, -Werror=lto-type-mismatch
	# https://bugs.gentoo.org/858743
	#
	# Currently working on reporting an upstream bug. Four different websites
	# including sourceforge and github but the only place for submitting bugs
	# is a self-hosted redmine that has disabled registration.
	filter-lto

	local mycmakeargs=(
		-DDENG_ASSIMP_EMBEDDED=OFF
		-DDENG_ENABLE_DISPLAYMODE=$(usex display-mode)
		-DDENG_ENABLE_TOOLS=$(usex tools)
		-DPYTHON_EXECUTABLE="${PYTHON}"
		-DQMAKE=$(qt5_get_bindir)/qmake
	)
	cmake_src_configure
}

src_install() {
	cmake_src_install

	if use tools; then
		mv -v "${ED}"/usr/bin/md2tool{,.${PN}} || die
	fi

	readme.gentoo_create_doc
}

pkg_postinst() {
	xdg_pkg_postinst
	readme.gentoo_print_elog

	if use tools; then
		einfo "In order to prevent a file collision with games-fps/eduke32[tools],"
		einfo "the utility md2tool has been renamed to md2tool.doomsday."
	fi
}