I want to work on a model of some kind of simple shape shooter game I would develop for either the desktop or the Android, using the libGDX library. There's something I want to incorporate into the game, and that is a countdown timer with the smallest unit in centiseconds.
The trouble I'm having is which resource to use to incorporate a fully-accurate game timer where it is in sync with real time, meaning that every second on the game timer, when the game is running at full speed, is equal to one second in real time. (I should understand what is a high-resolution timer)
Java's Swing Timer class won't do, and so are the two methods from the static System class. And I'm not very confident about the timer classes I've looked up online, unless I accidentally ran into one of them and never realized it's completely accurate.
I have practiced implementing my own countdown timer except that it ain't synchronized because I'm doing an update for every 10 milliseconds. I asked a similar question on StackOverflow, but I am getting a little too obsessed in trying to find a perfectly good timer.