Add a confirmation before quitting the game

[milkyroute]

This functionality would prevent people pressing escape and closing the game by mistake. But it's also a pretext to create a dialog box system in the game, which would be useful also for asking other kinds of confirmations.

[Srykah]

Do you want to create the whole system by yourself or are you ok with using some existing system ? On the official SFML forums, two GUI modules are pretty active : TGUI and SFGUI, maybe one of them will be what you're looking for !

[milkyroute]

I'll check them when I'll have the time!