[Freeciv-Dev] Re: Want calculation (Was:Re: flying AI (PR#1162))

[Petr Baudis <pasky@xxxxxxxxxxx>]

Dear diary, on Tue, Jan 01, 2002 at 12:13:33PM CET, I got a letter,
where Gregory Berkolaiko <gberkolaiko@xxxxxxxxxxx> told me, that...
>  --- "Ross W. Wetmore" <rwetmore@xxxxxxxxxxxx> wrote: 
> > 
> > This is used for veteran units. Obviously they are 40 somethings better
> > than the standard unit build_cost, probably because rifleman are the
> > prototypical unit and this is double the shield cost or something :-).
> 
> I thought it is used as the boat cost if we need the boat.
Well, as I said, I basically think the same.

> Want = Operation_Profit * Amortization_Factor
> 
> where 
> 
> * Amortization_Factor is completely beyond me (but it's a function of the
> estimated time length of the operation).

amortize() IMHO calculates weight of benefit 'repay' in certain time.  Returns
benefit * ((MORT - 1) / MORT)^delay (^ = to the power of).  That means
amortize() is directly proportional to benefit and indirectly proportional to
delay - i.e. longer it takes, less worth it's to do it, but more it gives, more
worth it's to do it.

> * Operation_Profit = Battle_Profit - Maintenance
> 
> where
> 
> * Maintenance 
>   = (1 shield + Unhappiness_Compensation) * Operation_Time 
>   (here unhappiness is from military unit being away from home)  
> 
> * Battle_Profit
>   = Shields_Lost_By_Enemy * Probability_To_Win 
>     - Shields_Lost_By_Us * Probability_To_Lose
I basically agree with all these.

-- 

                                Petr "Pasky" Baudis

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