how to have random background image - and how to hide it ?

Hi, sorry a am news in godot... I like to have a random backgroud Image from a pool of pictures in a directory. How to make this ?

How to hide the background with a color and only view a part of the backgroud image if the "player" moved over ?

can somebody give me examples please ?

That effect is called fog of war and there are tutorials on the internet. Should help you with changing images, also.

thank you fire7side