Does this:

If lCurrentFatigue != (lCurrentFatigue > lBaseFatigue)

...mean if current fatigue is not greater than base fatigue??

I don't think that's how it works.

lCurrentFatigue > lBaseFatigue

will return 1 (true) if lCurrentFatigue is larger than lBaseFatigue. Otherwise it will return 0 (false).

So the whole statement is

If lCurrentFatigue != 1

in the first case and

If lCurrentFatigue != 0

in the latter.