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DeltaP thresholds for weak walls and fans, and more#238

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BobSempleD wants to merge 2 commits intomichaelchessall:masterfrom
BobSempleD:MOAR_deltaP
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DeltaP thresholds for weak walls and fans, and more#238
BobSempleD wants to merge 2 commits intomichaelchessall:masterfrom
BobSempleD:MOAR_deltaP

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@BobSempleD BobSempleD commented Feb 6, 2026

DO NOT MERGE YET; NEEDS TESTING & FIXES

About the PR

Basic walls & fans are no longer immune to high pressure; certain walls are now more(gold, plasma, and uranium walls) or less(plastic, wood, titanium, and web walls) effective in blocking radiation. Fans have a chance to revert to their flatpack when broken.
Solid walls have the same deltaP threshold as reinforced plasma windows, so they are still able to withstand typical pressure-regulated burn chamber pressures. Any walls with structuralMetallicStrong are still completely immune to pressure.
I also made titanium walls lighter because why not.

Why / Balance

Fans that you can walk through being able to withstand unlimited pressure when reinforced windows can't is silly.
It doesn't make sense for plastic & wood walls to provide the same radiation protection as steel. I have never seen plasma or uranium walls used, so I slightly improved their radiation resistances (plasma from 5->6 and uranium from 6->7).

Technical details

Media

Requirements

Breaking changes

Pressure chambers using any of the following for containment should have their pressure regulators updated with the following thresholds:
Tiny fans, plastic walls, and web walls: 750 kPa
Directional fans: 2.5 MPa
Wood, meat, and cobblestone brick walls: 10 MPa
Solid(basic steel walls), brick, bronze, clockwork, ice, silver, plasma(wall), uranium(wall), and chitin: 150 MPa
Gold and cult walls: 300 MPa

Changelog

Fixed deltaP threshold names for bananium, gold, and cult walls.
@BobSempleD BobSempleD marked this pull request as draft February 6, 2026 17:05
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