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Senethro is offline Senethro
Prince

Jul 2004
time: 05:18
  Old Post 29-04-2005 12:21
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How to calculate the cost of city mind control? Avatar Enlargement: We've got the solution

Quick question: how much does it cost to mind control a city or enemy unit? I know some factors that affect it are enemy probe rating, drone riots, presence of childrens creche, use of nerve stapling, number of talents, no. of military units in the base. I think that enemy unit morale and probe team morale might also play a part.

Flubber is offline Flubber
Emperor
With a view of the Rockies
Aug 2000
time: 22:18
  Old Post 30-04-2005 09:08
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Re: How to calculate the cost of city mind control? Increase Your PM Length

quote:
Originally posted by Senethro
Quick question: how much does it cost to mind control a city or enemy unit? I know some factors that affect it are enemy probe rating, drone riots, presence of childrens creche, use of nerve stapling, number of talents, no. of military units in the base. I think that enemy unit morale and probe team morale might also play a part.


I don't think that anyone has come up with a definitive answer on this. I do think that distance from the enemy's capitol is a factor. I recall someone saying (but never tested) that its actually the square the probe stands on that matters such that mind-control costs would vary if tried from different tiles

johndmuller is offline johndmuller
King
Capitol Hill, Colony of DC
Feb 2001
time: 00:18
  Old Post 30-04-2005 14:00
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If you mind control more than 1 base in a turn, the second costs substantially more than it would have if it were the 1st or only. I tested it once in an old game and the same thing happened regardless of which base you did first (although I think it was some sort of factor, so IIRC, it was better to do the more expensive one first). I don't know if the effect is cumulative over the game or whether it is just on a per-turn basis.

I believe other factors might include the population of the target base and/or amount of infrastructure, and distance the target base is from its own HQ (although that might just correlate with some of the size/prosperity stuff).

Kirov is offline Kirov
Prince
Warsaw, Poland
Sep 2002
time: 06:18
  Old Post 03-05-2005 22:27
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Compare the cost in Civ, although I believe nobody cross-checked it (I've been planning to do it for a year).

Commy is offline Commy
King
St. Louis, MO, USA
Mar 2004
time: 05:18
  Old Post 05-05-2005 02:52
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Put an end to popups!

I have attempted to undertake this, and this is what I have found...

Distance is the largest factor in determining cost...distance is determined by the number of squares between the bases plus the base square...so if there is one blank square between the HQ and the base, the distance is two...

Diagonals, I believe, have a distance equal to 2 units instead of one...

Map size does not have any affect, either does difficulty level...

Some figures...

If distance is 2, base cost is 201
Distance 3, 172
4,151
5,134

and so on...I have a list all the way to 35, then have 40, 50, and distance of 100, which by the way has a base cost of only 14...

If there is no HQ, the default distance is 12, a cost of 75...

If there is more than one population unit, then it is "base" times the number of population...so a base that is 12 away from the HQ and has pop 3 costs 225, not 75...

Children creches half the distance used in the equation, so I assume genejack factories double it...

Hopefully I'll have more on this later...

Senethro is offline Senethro
Prince

Jul 2004
time: 05:18
  Old Post 05-05-2005 03:53
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Wow, good work. I thought good ol' gene jack merely added one more drone?

Theory: drones half the cost for that citizen, talents double it.

What is the effect of nerve stapling?

Reading a Civ2 guide it suggested that the distance actually is from HQ to the Probe team's square. I'm wondering if AC is teh same because of the same game engine. Since playing Civ2 for the first time this week, I've noticed a lot of similarities...

Zoetrope is offline Zoetrope
Warlord
Melbourne, Victoria, Australia
Sep 1999
time: 05:18
  Old Post 05-05-2005 04:44 Visit Zoetrope's homepage!
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I regard AC as Brian Reynold's effort at Civ 2.9 (in disguise) pending Firaxis's winning the rights to Civ 3. A pity he wasn't involved when that happened.

Commy is offline Commy
King
St. Louis, MO, USA
Mar 2004
time: 05:18
  Old Post 05-05-2005 08:15
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Got spare money?

I actually tried that, probing from different squares to see if different numbers appeared, but it was always the same...

Unfortunately, this is a difficult task...

First off, apparently just adding things in with the scenario editor doesn't work unless its with population...I added 2 secret projects and 5 units in a base with a few facilities, all with the editor...but the cost never changed...I did however start a game and then wait until the first secret project was built by the AI, and then activated the scenario editor...the cost was 696...it was a free drone base with the human genome, three 1-2-1 units, and I think a rec commons and a recycling tanks...I tried to see what affect taking away the units had...unfortunately, the price only changes after the turn is over, so if a base costs 1200 ECs to subert it and its supported units, if all the supported units are destroyed, the price still remains for that turn...

livid imp is offline livid imp
Prince
Gimme a quarter or I'll touch you
Mar 2004
time: 21:18
  Old Post 05-05-2005 18:23
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Commy, did you let the game start a new turn before you probed the city? If that doesn't work,try saving and restarting the game.

Make a series of different cities with different attributes (i.e. build 8 cities surrounding the capitol at the same distance, but different pop levels or facilities, etc.) Edit in some basic entry level probes, and see how much is for sale.

Last edited by livid imp on 05-05-2005 at 18:36

Kirov is offline Kirov
Prince
Warsaw, Poland
Sep 2002
time: 06:18
  Old Post 05-05-2005 21:45
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I'm pretty sure that both SPs and units do not change the cost.

OTOH, there are more facs than just CC and GF that affect the cost - e.g. Nanohospitals, IIRC. But the are only several of them. Punishment Spheres are also worth checking, as well as research hospitals.

On yet another hand, I _seem_ to recall a situation where an empty base (i.e. w/o units) cost much less that the same one with units... I'm not sure 'bout that.

BTW, the manual mentions that the cost is affected also by victim's PSYCH rating (I think I checked that some time ago, and it appeared to be false) and something along the line of "special actions" going in the base. I've no idea what they meant by that, but it was certainly NOT SPs. Have someone stumbled across it?

Senethro is offline Senethro
Prince

Jul 2004
time: 05:18
  Old Post 06-05-2005 02:02
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Special actions: Drone riots, starvation, nerve stapling, captured base, punished base, golden age base, base with drone riots/activity incited.

Any more possibilities?

Are research hospitals really likely to increase mind control defense? They might do so indirectly by quelling one drone.

Commy is offline Commy
King
St. Louis, MO, USA
Mar 2004
time: 05:18
  Old Post 06-05-2005 02:05
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special actions I think refers to drone riots, golden ages, and nerve stapling...when I have time this weekend, I plan to solve everything...

The only thing that is bothering me is the equation for distance...I have set up the distance and the base cost on a graph...it looks like the equation might be quadratic, or it could just be part of an oval, I'm not sure and really am not too great at graphing...

bluetemplar is offline bluetemplar
Chieftain
Marseille
Apr 2005
time: 06:18
  Old Post 07-06-2005 23:22
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Increase Your PM Length

Hello everybody!

It's some months now that I have found that SMACX is the best game ever created and in search for a good forum about this game stumbled across Apolyton.

For now I contented myself reading topics and accumulating all this amazing knowledge one can find here.
But soon I found that even after 4 years, there are still things to discover.

Today I have run some tests concerning this topic:


quote:
Commy : Diagonals, I believe, have a distance equal to 2 units instead of one...


I think that it's rather x1.5


The cost/distance from 2 to 20:
201 for 2 and so on
172
151
134
121
110
100
93
86
80
75
71
67
63
60
57
55
52
50


My complete test excel file joined.


I think that we've found the most complicated formulae in SMACX!
Unfortunately even with this data I can't find what the formula is... and the closest (order 6) doesn't work with Excel (it might be a rounding error problem)
I hadn't tested an oval though...

P.S.: Excuse me for my poor english.

P.P.S.: Another close formula (with rounding):
267.7179937-41.37712929*x+3.919025847*x^2-0.2244749676*x^3+0.00787612925*x^4
-0.0001696430532*x^5+(2.181511736E-6)*x^6+(-1.533964146E-8)*x^7+(4.531822328E-11)*x^8

Attachment: probe dist.xls
This has been downloaded 1 time(s).

Last edited by bluetemplar on 08-06-2005 at 01:03

Commy is offline Commy
King
St. Louis, MO, USA
Mar 2004
time: 05:18
  Old Post 08-06-2005 04:15
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Inflate your Upload Space

If it helps any, the cost for distance 1 is 242...I did this by playing SMAX on a 16x16 map, where the aliens crash land at the same time, in squares right next to eachother...I changed the owners in the editor and found the cost that way...

I have done some 5 minute research on graphing, and I have come up with two ideas...

A) There are things called parent and child parabolas...for those that know about parabolas and quadratic equation, the y-axis must always be the line of symetry for a parabola...however, by using parabola A as a parent, and graphing parabola B based on the parent, you can shift a parabola off the y-axis, possibly creating something that we have here...unfortunately, I didn't take time to see how parent parabolas work...

B) We e-mail the numbers to some engineers at a University or College...some famed institute, such as MIT, probably has many ways to contact professors...let's hope they don't think of us as annoying...

PJayTycy is offline PJayTycy
Warlord

Apr 2005
time: 06:18
  Old Post 08-06-2005 04:18
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what's the cost for distance 0 (ie: mind control the headquarters itself) ?

Petek is offline Petek

Prince
Berkeley, CA
Jul 2000
time: 21:18
  Old Post 08-06-2005 04:24
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quote:
Originally posted by PJayTycy
what's the cost for distance 0 (ie: mind control the headquarters itself) ?


Probes can't mind control an opponent's HQ.

Chaos Theory is offline Chaos Theory

King
Missouri / Misery; CC
Oct 2002
time: 04:18
  Old Post 08-06-2005 06:25 Visit Chaos Theory<br><a href=/members><img src=/forums/images/supporter-icon.gif border=0></a><BR>'s homepage!
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This data is easy to fit if you look at it a bit. I took the listed mind control costs and plotted their inverses against distance. It's nearly a perfect line, and their correlation is .99995, nearly perfect. I calculated linear regression parameters and ran the distance values back through the calculated line. The resulting costs were pretty good, but were off by an EC in places, due to rounding present in the original data. I looked a little harder and realized that the intercept was about 4 times the slope, ran some calculations with the listed distance values plus 4, and got a slope of about 1/1200.

I'd seen the number 1200 before. It was the number of ECs my opponent needed to double my mind control cost in some crude tests I'd done. Based on all this, I present a somewhat untested mind control formula:

d = distance from HQ (after modification by creche or genejack)
E = opponent's ECs
p = population of opponent's base
C = other stuff potentially including number of bases already mind controlled, opponent's probe rating, etc. By default, 1

Cost to control(d, E) = C * p * (1200 + E) / (d + 4)

After rounding, the results match up perfectly for size 1 bases owned by opponents with 10 ECs. The cost to mind control such an opponent's HQ, if it were possible, is 302, by the way.

Commy is offline Commy
King
St. Louis, MO, USA
Mar 2004
time: 05:18
  Old Post 08-06-2005 06:54
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Children's creche's halve the distance, and genejack factories double the distance, however, I don't know if this includes just halving the distance or halving the distance plus 4...

By the way, what do you mean when you say inverse?

Chaos Theory is offline Chaos Theory

King
Missouri / Misery; CC
Oct 2002
time: 04:18
  Old Post 08-06-2005 07:05 Visit Chaos Theory<br><a href=/members><img src=/forums/images/supporter-icon.gif border=0></a><BR>'s homepage!
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Note how the distance is in the denominator? To derive this, I took all the energy values posted by bluetemplar and used their reciprocals in calculating the line of regression. I could have tried the reciprocals of the distances, but due to the +4, that wouldn't have worked.

Commy is offline Commy
King
St. Louis, MO, USA
Mar 2004
time: 05:18
  Old Post 08-06-2005 21:39
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I think I understand, as I know what reciprocals are...

But how would children creche's fill in to this equation? I know that if population is one and the AI has no energy, the cost is effectively the same as if the distance is halved if a children's creche is present...I dont' think the variable C represents this...

BlackCat is offline BlackCat
Warlord

Jul 2004
time: 05:18
  Old Post 08-06-2005 21:53
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Lose 30 kilos (of popups)

According to Chaos, CC are included in d :


* d = distance from HQ (after modification by creche or genejack)

Commy is offline Commy
King
St. Louis, MO, USA
Mar 2004
time: 05:18
  Old Post 09-06-2005 05:09
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Sorry...

I bow down to the wisdom of Chaos Theory...

bluetemplar is offline bluetemplar
Chieftain
Marseille
Apr 2005
time: 06:18
  Old Post 09-06-2005 13:20
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Needs some testing. Comments coming soon.

New version:
1.01 : Unit Row Cost Calculator added

Another version:
v1.02
Base Cost : depends on number of bases captured this turn
Probe succes rate table added

Attachment: probe team cost calculator.xls
This has been downloaded 1 time(s).

Last edited by bluetemplar on 09-06-2005 at 23:57

bluetemplar is offline bluetemplar
Chieftain
Marseille
Apr 2005
time: 06:18
  Old Post 10-06-2005 00:43
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-> Sometimes for the distance calculator to work, you must invert the positons of unit/base and HQ.

I fear that the next three weeks I will have no time to spend to SMACX and to clear all the bugs that are in this file...
what i don't understand is why the Unit Row Cost Calculator doesn't work while it's the exact formula that is written in the game help!

Damn, I should have thought about an hyperbola, since it wasn't an exponential, nor parabola, neither it couldn't have been a polynomial. But the polynomial was closer : about 0.9996 against 0.9990 for a reciprocal.

There is a link for the software I used for the other regression (units) for my calculator (it was easy now since i knew what sort of function it was, thanks Chaos Theory )

http://www.cradlefields.com/gs/graphsight.html

But I still hadn't found what is the formula for genejack, it's near distance*3 but not exactly...

Chaos Theory is offline Chaos Theory

King
Missouri / Misery; CC
Oct 2002
time: 04:18
  Old Post 10-06-2005 01:05 Visit Chaos Theory<br><a href=/members><img src=/forums/images/supporter-icon.gif border=0></a><BR>'s homepage!
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quote:
Originally posted by bluetemplar
what i don't understand is why the Unit Row Cost Calculator doesn't work while it's the exact formula that is written in the game help!

http://apolyton.net/forums/showthre...threadid=115953

quote:

Damn, I should have thought about an hyperbola, since it wasn't an exponential, nor parabola, neither it couldn't have been a polynomial. But the polynomial was closer : about 0.9996 against 0.9990 for a reciprocal.


You mean the eight-term polynomial was closer? Sure, since it has eight degrees of freedom to a hyberbola's two. Your polynomial would have quickly diverged to positive or negative infinity outside the range of data fitted, though.

Commy is offline Commy
King
St. Louis, MO, USA
Mar 2004
time: 05:18
  Old Post 10-06-2005 05:44
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I can't wait till civ4, no more having to figure out equations...

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