Potentially unused variables

[Sirius]

I am a little confused about seconds_per_tick

My IDE clearly states it as unused.
Did I miss anything about that parameter?
What exactly does it do, or what exactly is it supposed to do?

My IDE had found some further unused variables and functions. I will, however only change distance, time, speed related stuff in this branch.

[jamespetts]

I think that this may have been added by someone else a long time ago; I cannot recall exactly how, if at all, this fits into the timing system now.

[Sirius]

Oops, I'm sorry.
seconds_per_tick actually is used in physics code.
I intended to refer to the "simtime_factor"

[jamespetts]

Ahh, yes: I did not write the physics code, and I have no idea of its internal workings.

[wlindley]

simtime_factor seems to be a function returning a constant value.  The function is never called, and everything compiles and runs properly without it.  Probably no reason to keep cruft laying about.

[[C] Ranran]

I think the function uint16 get_population () const; declared in gebaeude.h is no longer used.