Forgot to add those

eclass/wise.eclass

@@ -0,0 +1,86 @@
+# Copyright 2021-2021 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+# @ECLASS: wise.eclass
+# @MAINTAINER:
+# moog621@gmail.com
+# @AUTHOR:
+# moog621@gmail.com
+# @SUPPORTED_EAPIS: 7
+# @BLURB: Functions to work with WISE installers.
+# @DESCRIPTION:
+# This class will provide various bits and bobs to work with WISE installers
+# that were popular in retail and shareware softwares in the 1990s.
+# There are 2 key components at play.
+# First, there is a Pascal program that runs in DOS, Windows and OS/2.
+# There exists source code for it, but porting it to FreePascal and Linux
+# proves very challenging. Instead, the DOS version is run inside of DOSBox.
+# It takes a considerable amount of time, but it gets it right. Unfortunately,
+# the program does not respect any directory structures or filenames, so
+# we are left to pick up the pieces with key component 2: shell functions
+# made for cleaning up this mess.
+
+# In order to disable network-sandbox:
+PROPERTIES+="live"
+
+# @ECLASS-VARIABLE: WISE_INSTALLER
+# @DESCRIPTION:
+# WISE installer filename. It can be an array!
+: ${WISE_INSTALLER:=}
+
+LICENSE+="e_wise-mit-like"
+SRC_URI+="
+	http://kannegieser.net/veit/programm/e_wise.arj
+"
+
+BDEPEND+="
+	games-emulation/dosbox
+	app-arch/p7zip
+"
+
+wise_unpack_installers() {
+	mkdir wise_output
+	mkdir ewise
+	pushd ewise
+		7z x "${DISTDIR}/e_wise.arj"
+	popd
+	local counter=0
+	for wiseguy in ${WISE_INSTALLER[@]}; do
+		wiseguy_abs=$(readlink -f ${wiseguy})
+		wiseguy_dir=$(echo ${wiseguy} | sed 's/\.exe//')
+		wiseguy_config="${wiseguy}.dosbox"
+		cat <<EOF > "${wiseguy_config}"
+[autoexec]
+mount D ${WORKDIR}/ewise
+mount E ${WORKDIR}/${wiseguy_dir}
+mount F ${WORKDIR}
+D:\\E_WISE_D.EXE F:\\${counter}.exe E:\\
+exit
+EOF
+		mkdir ${wiseguy_dir}
+		ln -s ${DISTDIR}/${wiseguy} ${counter}.exe
+		pushd ${wiseguy_dir}
+			elog "Extracting ${wiseguy} in DOSBox"
+			SDL_VIDEODRIVER=dummy dosbox -conf ${WORKDIR}/${wiseguy_config}
+			elog "Creating directory structures"
+			grep filename:\ MAINDIR 00000000.BAT | sed 's/^.*filename:\ MAINDIR\\//;s/\\/\//g;s:[^/]*$::;s/\/$//' | sort -u | xargs mkdir -p
+			elog "Renaming files"
+			grep ^MOVE\s*.*\ MAINDIR 00000000.BAT -B1 | tr -d '\r' | sed 's/\\/\//g;s/^MOVE\s*\([^/]*\)\ MAINDIR\/\(.*\)$/\2\/\1/;s/^RENAME\ \([^/]*\)\ .*$/mv\ \1/;/^\-\-$/d' | sed 'N;s/\.EWI\n/\.EWI\ /' | sh
+			for i in $(ls | grep \\.EWI$); do
+				if [ $(grep -c "^RENAME\ $i\ .*$" 00000000.BAT) -eq 0 ]; then
+					elog "Removing homeless file $i"
+					rm -f $i
+				fi
+			done
+			for i in $(grep EWI\ W32INST_PATH_ 00000000.BAT | awk '{print $2}'); do
+				elog "Removing useless file $i"
+				rm -f $i
+			done
+			elog "Removing useless file 00000000.BAT"
+			elog "Removing useless file 00000000.TXT"
+			rm -f 00000000.BAT 00000000.TXT
+			mv * ${WORKDIR}/wise_output
+		popd
+		counter=$((${counter} + 1))
+	done
+}

games-fps/counter-strike-data/Manifest

@@ -0,0 +1,2 @@
+DIST csv15full.exe 127194009 BLAKE2B fd2593370cfd3dd5f93932d0509ab308d30de4028c9f60eb4ecc7bf83c7f8acb5f2831f05108b74d06c263a145a2293c6780ca17aa1ed04b5b7b8e26449d9e00 SHA512 5b2816e61d26b0017affcf59db7e6117f01410988529094c2cba62b2f0f07d0b5828d73cb527b03a60c7b89aa5453f2cdab255ed15a011f56e2fc0423d4883fe
+DIST e_wise.arj 108222 BLAKE2B 8bd042899b1edf6ab93cefe72837e7892bd290d32bf9dfa37139abbd4bf1731292f95e1a300e676f1258797bb17fe68416d8040de1cf076cefd44ca7bd95f01f SHA512 cfce00151d4e67810287be885a917389cb36c42d8e6bb9d25e4f64628352579cfe260959c4eef31f8fa30bfbc739678b8d5a88c4c35c1d2a6b263bd538e39780

games-fps/counter-strike-data/counter-strike-data-1.5.ebuild

@@ -0,0 +1,37 @@
+# Copyright 1999-2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+inherit wise
+
+DESCRIPTION="Freeware release of Counter-Strike 1.5"
+HOMEPAGE="web.archive.org/web/20031231214931/http://www.counter-strike.net/"
+WISE_INSTALLER="csv15full.exe"
+SRC_URI+="
+	https://archive.org/download/counter-strike-1.5/${WISE_INSTALLER}
+"
+
+LICENSE="UNKNOWN"
+SLOT="0"
+KEYWORDS="~amd64 ~arm ~ppc64 ~x86"
+
+RDEPEND=""
+BDEPEND=""
+
+S="${WORKDIR}"
+
+src_unpack() {
+	wise_unpack_installers
+}
+
+src_install() {
+	insinto "/usr/share"
+	doins -r wise_output/cstrike
+}
+
+pkg_postinst() {
+	echo
+	elog "In order to play this mod run FreeCS"
+	echo
+}