annonymous1 authentication1 customizable controls1 facebook sign in1 firebase1 firebase auth1 firebase authentication1 firebase login1 firebase swift1 fps controls1 game control bundle1 google sign in1 intuitive gaming controls1 ios1 ios firebase1 joystick controls1 mobile device gaming1 mobile gaming controls1 mobile joystick1 mobile steering wheel1 on-screen controls1 racing game controls1 shooting game controls1 signup1 steering wheel controls1 swift1 touch screen controls1 tps controls1