Updatr for Swamp 2.

For whatever reason, Wine is choking on the update when you try to go
and do it through the game's menu, so we'll just do it here for now.

game-scripts/update-swamp2.sh

@@ -0,0 +1,16 @@
+#!/usr/bin/env bash
+
+# Updater script for Swamp 2.
+# For whatever reason, the updates are partially applied and I'm too lazy to figure out why Wine is barfing, so we'll just do it manually.
+cache="${XDG_CACHE_HOME:-$HOME/.cache}/audiogame-manager"
+. ../.includes/dialog-interface.sh 
+. ../.includes/functions.sh 
+swamphouse=~/.local/wine64/drive_c/Program\ Files/swamp2
+myver=$(cat "$swamphouse/myversion.txt")
+newver=$(curl -s https://kaldobsky.com/audiogames/swamp2version.txt)
+if [[ $newver -gt $myver ]]; then
+    agm_msgbox "Our version: ${myver}, with the newer version being ${newver}"
+    download "https://kaldobsky.com/audiogames/swamp2_update.zip"
+    install_with_progress unzip "Extracting game files..." -d "${swamphouse}" "${cache}/swamp2_update.zip"
+    rm "${cache}/swamp2_update.zip"
+fi