curses.h

Simulace okna v command-line

https://rhardih.io/2010/04/using-ncurses-in-c-for-text-user-interfaces-featuring-xcode/

keypad

Zdroj: http://pubs.opengroup.org/onlinepubs/7908799/xcurses/curses.h.html
http://pubs.opengroup.org/onlinepubs/7908799/xcurses/mvprintw.html
http://pubs.opengroup.org/onlinepubs/7908799/xcurses/newwin.html

https://www.youtube.com/watch?v=3YiPdibiQHA

https://forums.whirlpool.net.au/archive/1042961

kbhit()

http://www.cplusplus.com/forum/beginner/89434/