When making games, it is often necessary to store information
about the game state in a file of some type, but storing this
information on the device is not always the best option as, if the
player deleted the game and then re-installs, this information may
be lost. To prevent this you can use various different cloud
services, which offer data storage over the internet for
retrieval and modification at any time. You should note that this
function is limited to one single data "blob" per game, so
every time you send a new save to the cloud service, whether it is
a string or a file, it will overwrite any previously stored
data.
GameMaker: Studio supports this with a few simple functions
that work in conjunction with the
Asynchronous Cloud Event. These functions are explained on the
following pages:
NOTE: Currently only Amazon WhisperSync is
supported and you must activate it through the
Android Tab of the Global Game Settings.