The latest versions of googleMaps, googleDirections and googleDirections_tohere plugins now supports secured websites (https) and PHP7.
I have updated the codes across all Joomla versions all the way back to Joomla 1.0. (Not sure if there's still anyone using Joomla 1.0...)
You can download the latest versions in the links below:
Note: If you install the latest version, you may need to re-keyin your Google Maps API key in the Plugin Manager for all the 3 plugins above.