Hello, I want to create a platform game for desktop and mobile devices.

I'm looking for an mfa template that meets classic needs (otherwise I propose to create one):

- How to detect that the game launches on a mobile:
--> test the absence of the mouse?
--> test the runtime is running as Android,IOS application?
--> test the presence of the touch joystick? ... but at home it appears all the time in desktop as in mobile ...

- How to get the real screen size :
--> ?

- Switch to full screen :
Simply with Capture d’écran 2022-10-03 230750.png

Many thanks for ideas, suggestions