Ports: Add Serious Sam - The First Encounter

The actual port is SeriousSamClassic, but only The First Encounter is
built and installed. It should be relatively easy to also build and
install The Second Encounter from this port in the future.

Ports/serious-sam-classic/package.sh

@@ -0,0 +1,66 @@
+#!/usr/bin/env -S bash ../.port_include.sh
+port='serious-sam-classic'
+useconfigure='false'
+version='1.10.4'
+files="https://github.com/tx00100xt/SeriousSamClassic/archive/refs/tags/v${version}.tar.gz ${port}.tar.gz c42e1434e03f713ffc60aa627f0a24c64287598bc5ee7cdbd2cbe91aa363ef51"
+auth_type='sha256'
+depends=(
+    'libvorbis'
+    'SDL2'
+    'zlib'
+)
+workdir="SeriousSamClassic-${version}"
+
+launcher_name='Serious Sam - The First Encounter'
+launcher_category='Games'
+launcher_command="/usr/local/bin/serioussam"
+icon_file='SamTFE/Sources/SeriousSam/res/SeriousSam.ico'
+
+sam_tfe_dir="${workdir}/SamTFE"
+sam_tfe_build_dir="${sam_tfe_dir}/Sources/cmake-build"
+
+# FIXME: SeriousSamClassic includes both TFE and TSE; we should also build and install TSE
+
+build() {
+    # Host build: ecc
+    mkdir -p "${sam_tfe_build_dir}"
+    cd "${sam_tfe_build_dir}"
+    if [ ! -x 'ecc' ]; then
+        host_env
+        cmake \
+            -DTFE=true \
+            -DUSE_SYSTEM_SDL2=0 \
+            ../
+        make "${makeopts[@]}" ecc
+    fi
+
+    # Target build: SamTFE
+    cp -vfr ../Entities/PlayerWeapons_old.es ../Entities/PlayerWeapons.es
+    target_env
+    cmake \
+        -DCMAKE_BUILD_TYPE=Release \
+        -DCMAKE_TOOLCHAIN_FILE=${SERENITY_BUILD_DIR}/CMakeToolchain.txt \
+        -DECC=${PORT_BUILD_DIR}/${sam_tfe_build_dir}/ecc \
+        -DINTERNAL_NAME=serioussam \
+        -DLINUX=1 \
+        -DTFE=true \
+        -DUSE_SYSTEM_SDL2=1 \
+        ../
+    make "${makeopts[@]}"
+}
+
+install() {
+    cd "${sam_tfe_build_dir}"
+    make "${installopts[@]}" install
+}
+
+post_install() {
+    echo
+    echo 'Serious Sam: The First Encounter is installed!'
+    echo
+    echo 'Make sure your game files are present in the following directory:'
+    echo '    Inside SerenityOS: ~/.local/share/Serious-Engine/serioussam/'
+    echo "    Outside SerenityOS: ${SERENITY_SOURCE_DIR}/Base/home/anon/.local/share/Serious-Engine/serioussam/"
+    echo
+    echo 'Copy over all files. The game will be looking for a directory with the `1_00_music.gro` file.'
+}