[Freeciv-Dev] (PR#8073) win32: unit moves aren't smooth

["James Canete" <use_less@xxxxxxxxxxx>]

<URL: http://rt.freeciv.org/Ticket/Display.html?id=8073 >

I tested it out on win32:

1: read_timer_seconds: 0.000000
1: last message repeated 2 times
1: last message repeated 2 times (total 4 repeats)
1: last message repeated 2 times (total 6 repeats)
1: read_timer_seconds: 0.010000
1: last message repeated 2 times
1: last message repeated 2 times (total 4 repeats)
1: last message repeated 4 times (total 8 repeats)
1: last message repeated 1 time (total 9 repeats)
1: read_timer_seconds: 0.020000
1: last message repeated 2 times
1: last message repeated 2 times (total 4 repeats)
1: last message repeated 4 times (total 8 repeats)
1: last message repeated 1 time (total 9 repeats)
1: read_timer_seconds: 0.030000

Looks like 10ms resolution, which I suppose is alright, especially when
you take into account that that's the equivalent of a 100hz refresh rate.

It fixes the animation, but we waste a lot of time erasing and redrawing
the sprite when it hasn't moved.  Other programs might want to have that
time.  :)

So the timers are good for just animation, but are there any situations
in the code where we'll need 1ms resolution?

-James Canete