Added update script to keep Swamp up to date.

swamp-update.sh

@@ -0,0 +1,34 @@
+#!/bin/bash
+
+updateURL="https://www.kaldobsky.com/audiogames/SwampPatch.zip"
+
+extract_error() {
+    echo "There was an error extracting the patch."
+    exit 1
+}
+
+
+# Set the swamp directory
+pushd ~/.local/wine/swamp
+
+# Restore the directory stack on exit.
+trap popd EXIT
+
+echo "Checking for Swamp updates..."
+
+# Check for and download new patches.
+update="$(wget -N "${updateURL}" 2>&1 | grep "not modified on server")"
+
+if [ -n "${update}" ]; then
+    echo "Swamp is up to date."
+    exit 0 
+fi
+
+echo "Updating Swamp..."
+
+# Unzip the new patch
+unzip -o SwampPatch.zip || extract_error
+
+echo "Swamp has been updated."
+
+exit 0