## Mirror of PR #22521: [Partial atmos
refactor](https://github.com/space-wizards/space-station-14/pull/22521)
from <img src="https://avatars.githubusercontent.com/u/10567778?v=4"
alt="space-wizards" width="22"/>
[space-wizards](https://github.com/space-wizards)/[space-station-14](https://github.com/space-wizards/space-station-14)
###### `18a35e7e83b2b71ee84b054d44d9ed5e595dd618`
PR opened by <img
src="https://avatars.githubusercontent.com/u/60421075?v=4"
width="16"/><a href="https://github.com/ElectroJr"> ElectroJr</a> at
2023-12-15 03:45:42 UTC
---
PR changed 43 files with 891 additions and 635 deletions.
The PR had the following labels:
- Status: Needs Review
---
<details open="true"><summary><h1>Original Body</h1></summary>
> This PR reworks how some parts of atmos code work. Originally it was
just meant to be a performance and bugfix PR, but it has ballooned in
scope. I'm not sure about some of my changes largely because I'm not
sure if some things were an oversight or an intentional decision for
some reason.
>
> List of changes:
> - The `MolesArchived float[]` field is now read-only
> - It simply gets zeroed whenever the `GasMixture` is set to null
instead of constantly reallocating
> - Airtight query information is now cached in `TileAtmosphere`
> - This means that it should only iterate over anchored entities once
per update.
> - Previously an invalidated atmos tile would cause
`ProcessRevalidate()` to query airtight entities on the same tile six
times by calling a combination of `GridIsTileAirBlocked()`,
`NeedsVacuumFixing()`, and `GridIsTileAirBlocked()`. So this should help
significantly reduce component lookups & entity enumeration.
> - This does change some behaviour. In particular blocked directions
are now only updated if the tile was invalidated prior to the current
atmos-update, and will only ever be updated once per atmos-update.
> - AFAIK this only has an effect if the invalid tile processing is
deferred over multiple ticks, and I don't think it should cause any
issues?
> - Fixes a potential bug, where tiles might not dispose of their
excited group if their direction flags changed.
> - `MapAtmosphereComponent.Mixture` is now always immutable and no
longer nullable
> - I'm not sure why the mixture was nullable before? AFAICT the
component is meaningless if its null?
> - Space "gas" was always immutable, but there was nothing that
required planet atmospheres to be immutable. Requiring that it be
immutable gets rid of the constant gas mixture cloning.
> - I don't know if there was a reason for why they weren't immutable to
begin with.
> - Fixes lungs removing too much air from a gas mixture, resulting in
negative moles.
> - `GasMixture.Moles` is now `[Access]` restricted to the atmosphere
system.
> - This is to prevent people from improperly modifying the gas mixtures
(e.g., lungs), or accidentally modifying immutable mixtures.
> - Fixes an issue where non-grid atmosphere tiles would fail to update
their adjacent tiles, resulting in null reference exception spam
> - Fixes#21732
> - Fixes#21210 (probably)
> - Disconnected atmosphere tiles, i.e., tiles that aren't on or
adjacent to a grid tile, will now get removed from the tile set.
Previously the tile set would just always increase, with tiles never
getting removed.
> - Removes various redundant component and tile-definition queries.
> - Removes some method events in favour of just using methods.
> - Map-exposded tiles now get updated when a map's atmosphere changes
(or the grid moves across maps).
> - Adds a `setmapatmos` command for adding map-wide atmospheres.
> - Fixed (non-planet) map atmospheres rendering over grids.
>
> ## Media
>
> This PR also includes changes to the atmos debug overlay, though I've
also split that off into a separate PR to make reviewing easier
(#22520).
>
> Below is a video showing that atmos still seems to work, and that
trimming of disconnected tiles works:
>
>
https://github.com/space-wizards/space-station-14/assets/60421075/4da46992-19e6-4354-8ecd-3cd67be4d0ed
>
> For comparison, here is a video showing how current master works
(disconnected tiles never get removed):
>
>
https://github.com/space-wizards/space-station-14/assets/60421075/54590777-e11c-41dc-b49d-fd7e53bfeed7
>
> 🆑
> - fix: Fixed a bug where partially airtight entities (e.g., thin
windows or doors) could let air leak out into space.
>
</details>
Co-authored-by: SimpleStation14 <Unknown>
* Convert StomachBehavior to a component/system + rejig body namespaces
* test
* slightly more namespace changes
* remove
* Hello?????
* fuck you github test runner
* reviews
* oobsy!
* Add test pooling
* WIP test pooling changes
* Fix Destructible tests
* Don't pool unpooled or dummy ticker instances
* Change ServerPathfindingDebugSystem to replace existing entries
* Fix SaveLoadSaveTest comment
* Don't pool StartTest
* Comment out global setup
* Fix puddle tests
* Move SolarPanelComponent initialize to PowerSolarSystem OnMapInit
* Update RobustToolbox
* Finish fixing tests, make test threads background threads
* Bring back pooling
* Fix nullable
* Update RobustToolbox
* Set cvars on server return
* Un-pool tests with custom cvars
* Update RobustToolbox
* Update RobustToolbox
* Change where the main tile coordinates are
* Remove DisposalUnitTest grid check
* Fix test pooling being a fickle bitch
* Fix EntitySystemExtensionsTest
* Update RobustToolbox
* Update RobustToolbox
* Make nullable pool settings true
* Update RobustToolbox
* Wait other way around
* We are unitystation now
* Update RobustToolbox
* Create global setup
* Pool some more tests
* Fix not properly disconnecting clients before restarting the round
* Give more info on ran tests
* Standardize default test cvars
* Update RobustToolbox
* Update RobustToolbox
* Pool clients
* Fix test order issue
* Fix cvars in character creation test not being set properly
* Update RobustToolbox
* Update RobustToolbox
* Rider shut
* Update RobustToolbox
* Format tests ran better
* Update RobustToolbox
* Reset RobustToolbox
* Reset RobustToolbox harder
* Fix one instance of test order causing destructible tests to fail
* Rename SolutionContainerCaps -> Capability
* Move IExamine event to Chemistry System.
* ECS the ISolutionChange into SolutionChangeEvent
* Unify SolutionContainer into a single shared component
* Replace ISolutionInteraction with SolutionContainerComponent
* Move all methods from SolutionContainer to ChemistrySystem
* Refactor EntitySystem calls to Dependencies
* Refactor SolutionContainer to SolutionManager
* Fix yamls
* Fix test fails
* Fix post merge issues
* Fix various issues with SolutionManager
* More fixes
* Fix more components
* Fix events not being directed
* Fixes for Hypospray
* Separate removal and iteration on Metabolism
* Fix creampie problems
* Address some of sloth's issues
* Refactors for Systems
* Refactored solution location
* Fix tests
* Address more sloth issues
* Fix dependency
* Fix merge conflicts
* Add xmldocs for Capabilities components
* Remove HasSolution/TryGetDefaultSolution and Add/Remove Drainable/Refillable
* Replace Grindable/Juiceable with Extractable
* Refactor field names
* Fix Drainable
* Fix some issues with spillable and injector
* Fix issues with Grinder
* Fix Beaker having duplicate solutions
* Fix foaming
* Address some MGS issues
* Fix Uid issues
* Fix errors in solution Tranfer
* Fixed some extra values constant values
* Cola is drinkable now
* metabolism -> respirator, add reageanteffect and reagenteffectcondition, start on metabolizercomp/system
* move LiverBehavior metabolism logic to Metabolizer
* minor tweaks and update all YAML
* how about actually taking conditions into account
* off by one
* removals
* reviews
* Refactor standing to be ECS
E C S B A B Y
* DONE
* FIX IT FIX IT FIX IT
* IsDown event
* Change to methods
* Fixes
* Address some reviews
* Last of the Mohicans
* Final fixes
* Fix tests
