Difference between revisions of "Genetic warfare"

From Alpha Centauri Wiki
Jump to: navigation, search
m (Population lost)
(population loss formula updated)
Line 8: Line 8:
  
 
==Population lost==
 
==Population lost==
Normally a genetic warfare attack affects all population. Each of the 6 techs that reduce damage from genetic warfare reduce it by 16.7%. (So having them all gives immunity).
+
Normally a genetic warfare attack affects all population. There are 6 techs reducing damage from genetic warfare.
  
 
If a faction has been targeted before by genetic warfare it also counts as a tech. Probably due to the faction implementing security procedures. Which means that only five techs and a previous attack are needed for immunity.
 
If a faction has been targeted before by genetic warfare it also counts as a tech. Probably due to the faction implementing security procedures. Which means that only five techs and a previous attack are needed for immunity.
  
This amount of population lost is further modified by defensive structures. If the base has a [[Research Hospital]], the population lost is reduced by 50%. And a [[Nanohospital]] increases this to 75%.
+
Initial population loss formula
  
A base with security interlocks present, which means it was attacked by genetic warfare before, gets an additional 50% population loss reduction. So a base with both hospitals which was targeted before has a 87.5% reduction.
+
population loss = min(total defensive technologies, max(1, known defensive technologies + 1 if factions was targeted by genetic warfare before) / max(1, total defensive technologies)
 +
rounded down
 +
 
 +
Faction lacking any defensive technologies and that had not been targeted by genetic warfare before still gets at least 1 as numerator in formula above. Meaning the max population loss is 80% (rounded down).
 +
 
 +
Population loss is further halved (rounded down) by following facilities/factors:
 +
* [[Research Hospital]]
 +
* [[Nanohospital]]
 +
* Base was attacked by genetic warfare before
 +
So a base with both hospitals which was targeted before has a 87.5% reduction.
  
 
After all the above population loss factors are accounted for resulting population loss is increased by 1. Meaning that genetic warfare attack kills at least one citizen regardless of the above protections and reductions.
 
After all the above population loss factors are accounted for resulting population loss is increased by 1. Meaning that genetic warfare attack kills at least one citizen regardless of the above protections and reductions.

Revision as of 10:26, 12 September 2020

Genetic warfare can be attempted by units with the Probe Module after the development of Retroviral Engineering. Genetic warfare can only be used on bases.

A genetic warfare probe action has the following effects:

  • The base loses population. The amount lost depends on a few factors, defensive technologies, defensive structures, and if the faction and base have been targeted before.
  • Each unit in the bases loses health. A random amount between one hp left, and half the hp of the unit. Defensive structures, and security interlocks can prevent this damage. But not technologies.

Using genetic warfare when the U.N. Charter are still in effect, is considered an Atrocity. It probably counts as a major atrocity and has ecological penalties.

Population lost

Normally a genetic warfare attack affects all population. There are 6 techs reducing damage from genetic warfare.

If a faction has been targeted before by genetic warfare it also counts as a tech. Probably due to the faction implementing security procedures. Which means that only five techs and a previous attack are needed for immunity.

Initial population loss formula

population loss = min(total defensive technologies, max(1, known defensive technologies + 1 if factions was targeted by genetic warfare before) / max(1, total defensive technologies)
rounded down

Faction lacking any defensive technologies and that had not been targeted by genetic warfare before still gets at least 1 as numerator in formula above. Meaning the max population loss is 80% (rounded down).

Population loss is further halved (rounded down) by following facilities/factors:

So a base with both hospitals which was targeted before has a 87.5% reduction.

After all the above population loss factors are accounted for resulting population loss is increased by 1. Meaning that genetic warfare attack kills at least one citizen regardless of the above protections and reductions.

A genetic warfare attack can never reduce a base to lower than one population. So it can only reduce bases, not totally destroy them.

Defensive technologies

Defensive structures