FreeGameDev

which script do I need to use to enable or disable clouds during the game?
-Thank you.

First, give the particle system a name (I'll use clouds for example). Then use

{l Code}: {l Select All Code}

clouds.set_enabled(true);

to make them appear, and use

{l Code}: {l Select All Code}

clouds.set_enabled(false);

to make them disappear again.
This also works with other particles like snow, ghosts, and rain. Hope this helps.