Init RAM requirement check

lgsm/functions/check_system_requirements.sh

@@ -0,0 +1,23 @@
+#!/bin/bash
+# LGSM check_system_requirements.sh
+# Author: Daniel Gibbs
+# Contributor: UltimateByte
+# Website: https://gameservermanagers.com
+# Description: Checks RAM requirement
+
+mbphysmem=$(free -m | awk '/Mem:/ {print $2}')
+
+# RAM requirement in MegaBytes for each game or engine
+if [ "${gamename} == "Rust" ]; then
+  ramrequirement="4000"
+fi
+
+# If the game or engine has a minimum RAM Requirement, compare it to system's available RAM
+if [ -n "${ramrequirement}" ]; then
+  if [ "${mbphysmem}" -lt "${ramrequirement} ]; then
+    # Warn the user
+    fn_print_warn "Insufficient physical RAM: ${mbphysmem}MB available for ${ramrequirement}MB required."
+    echo "You may encounter issues such as server lagging or shutting down unexpectedly."
+    fn_script_log_warn "Insufficient physical RAM: ${mbphysmem}MB available for ${ramrequirement}MB required."
+  fi
+fi