Offer the download of the Doom Metal Mod Volume 6.

linux-game-manager.sh

@@ -497,13 +497,14 @@ gameList=(
 
 # Check for required packages
 requiredPackages=(
+    "7z"
     "curl"
     "dialog"
     "unzip"
 )
 for i in "${requiredPackages[@]}" ; do
     if ! command -v $i > /dev/null 2>&1 ; then
-        echo "Please install $i before continuing."
+        echo "Please install ${i/7z/p7zip} before continuing."
         exit 1
     fi
 done
@@ -655,11 +656,18 @@ case "${game}" in
         fi
         doomPath="$(find /usr/share -type d -name "doom" 2> /dev/null | head -1)"
         # The url breaks the normal download function
+        if ! [[ -e "${doomPath}/DoomMetalVol6.wad" ]]; then
+        alert
+            if dialog --backtitle "Linux Game manager" --yesno "Would you like a metal mod?" -1 -1 --stdout ; then
+                download_named "Doom_Metal_Volume_6_v2.rar" "https://www.moddb.com/downloads/mirror/214324/124/0dbd81ee8d819f6a20da3830ddc20c18/"
+            fi
+        fi
         download_named "keyshare-universal.pk3" "https://forum.zdoom.org/download/file.php?id=42262"
         download "https://www.dropbox.com/s/uf01fx3vydua6zx/TobyAccessibilityMod_Version${tobyVersion}.zip?dl=0" "https://www.dropbox.com/scl/fi/bac94s01bl31p6e73pbof/OperationMDK.zip?rlkey=6ufdqgyacakqz6ulr2cue6rtm&dl=1"
         echo "The next step may require your password."
         echo "It is necessary to places the extracted files in their proper place."
         alert
+        [[ -e "${cache}/Doom_Metal_Volume_6_v2.rar" ]] && sudo 7z x -o"${doomPath}/DoomMetalVol6.wad" "${cache}/Doom_Metal_Volume_6_v2.rar"
         sudo unzip -n -d "${doomPath}" "${cache}/TobyAccessibilityMod_Version${tobyVersion}.zip"
         sudo unzip -n -d "${doomPath}" "${cache}/OperationMDK.zip"
         sudo cp -v "${cache}/keyshare-universal.pk3" "${doomPath}"