Adaptive Framerate

[olls]

At the moment the framerate is set as a maximum of 15, but this is so that is can run in slower terminals, while on most terminals, it can go much faster. Could we make it adapt somehow, maybe by timing the print statement?

[olls]

FPS = 15
  Recorded FPS = 92.0%
FPS = 45
  While walking, FPS = 90.4%
  While digging, FPS = 97.5%

I think the error is too high to be meaningful...

[olls]

This would make the framerate independentness more useful