## About The Pull Request
I heard you liked commas.
## Why It's Good For The Game
Trailing commas make everyone happy!
## Changelog
Nothing anyone will notice besides downstreams adding to these lists
## About The Pull Request
As the title says.
`init_order` is no more, subsystems ordering now depends on their
declared dependencies.
Subsystems can now declare which other subsystems need to init before
them using a list and the subsystem's typepath
I.e.
```dm
dependencies = list(
/datum/controller/subsystem/atoms,
/datum/controller/subsystem/mapping
)
```
The reverse can also be done, if a subsystem must initialize after your
own:
```dm
dependents = list(
/datum/controller/subsystem/atoms
)
```
Cyclical dependencies are not allowed and will throw an error on
initialization if one is found.
There's also a debug tool to visualize the dependency graph, although
it's a bit basic:
Subsystem load ordering can still be controlled using `init_stage`, some
subsystems use this in cases where they must initialize first or last
regardless of dependencies. An error will be thrown if a subsystem has
an `init_stage` before one of their dependencies.
## Why It's Good For The Game
Makes dealing with subsystem dependencies easier, and reduces the chance
of making a dependency error when needing to shift around subsystem
inits.
## Changelog
🆑
refactor: Refactored subsystem initialization
/🆑
## About The Pull Request
Situation: areas have a list of all turfs in their area.
Problem: `/area/space` is an area and has a 6 to 7 digit count of turfs
that has to be traversed for every turf we need to remove from it. This
can take multiple byond ticks just to preform this action for a single
space rune
Solution: split the list by zlevel, and only search the right zlevel
list when removing turfs from areas.
replaces `area.get_contained_turfs()` with a few new procs:
* `get_highest_zlevel()` - returns the highest zlevel the area contains
turfs in. useful for use with `get_turfs_by_zlevel`
* `get_turfs_by_zlevel(zlevel)` - returns a list of turfs in the area in
a given zlevel. Useful for code that only cares about a specific zlevel
or changes behavior based on zlevel like lighting init.
* `get_turfs_from_all_zlevels()` - the replacement for
`get_contained_turfs()`, renamed as such so anybody copying/cargo
culting code gets a hint that a zlevel specific version might exist.
Still used in for loops that type checked so byond would do that all at
once
* `get_zlevel_turf_lists()` - returns the area's zlevel lists of lists
but only for non-empty zlevels. very useful for for loops.
The area contents unit test has been rewritten to ensure any improper
data triggers failures or runtimes by not having it use the helpers
above (some of which ensure a list is always returned) and access the
lists directly.
Literally just me stealing #77207 completely muhahahhahahah screw you
@Mothblocks
I did add some documentation and some radnebula related cleaning and
testing to make it work well
Copied from original PR:
> Please do NOT add code to InitAtom, it is extremely hot. The
conditions on this alone were costing nearly 200ms on my extremely
powerful machine.
>
> Changes the radioactive nebula to perform its work by looping over
every space tile on init (which on my machine is faster than the time
being wasted on this signal), and adds a subsystem that does this in
SS_BACKGROUND every 30 seconds (usually completeable in about half a
second) for any new atoms, because the effect is hardly noticeable
anyway with how green space is.
Honestly we really don't care that much about stuff being initialized in
space. Everything that walks into space (about everything that matters
to players), is completely unaffected by this change, but roundstart is
now slightly faster
Alexis