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[0.13.10] Modules Show Incorrect Percentages
Posted: Sat Jul 23, 2016 9:33 pm
by cammer733
This is an incredibly minor problem, one that may not even be classified as a bug. I'm not sure. It really causes no problems at all, it just bugged me a little when I saw it. Productivity modules 1, 2, and 3 claim to increase pollution by %5, %7.5, and %10 respectively. The pollution increase shown by oil pumpjacks and electric mining drills is %50, %75, and %100 respectively.
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- 20160723164444_1.jpg (467.54 KiB) Viewed 645 times
Re: [0.13.10] Modules Show Incorrect Percentages
Posted: Sun Jul 24, 2016 12:02 am
by daniel34
The pollution is not only affected by the +x% pollution, it's also directly related to the energy consumption which is increased by productivity modules.
From the wiki (
https://wiki.factorio.com/index.php?title=Pollution):
Modules that list "+x% pollution" increase pollution multiplier, not a flat pollution rate. Final pollution value is (pollution multiplier * energy usage multiplier * base pollution), meaning heavily boosted buildings are likely to account for most of the pollution produced in a factory.
Mining drill without modules:
1 (pollution multiplier)
* 1 (energy usage multiplier)
* 9 (base pollution)
= 9
Mining drill with 1x PM3:
1.1 (pollution multiplier)
* 1.8 (energy usage multiplier)
* 9 (base pollution)
= 17.82
You can also see the pollution going down when using efficiency modules (or up with speed modules), although they don't directly affect the pollution:
Mining drill with 2x EM2:
1 (pollution multiplier)
* 0.2 (energy usage multiplier)
* 9 (base pollution)
= 1.8