## About The Pull Request
[cleans up poor namespacing on light debugging
tools](https://github.com/tgstation/tgstation/commit/93cc9070d56ee4dbeb600ebd4616b047adf9d648)
[Implements a pathfinding visualization
tool](https://github.com/tgstation/tgstation/commit/ed91f69ac42a92329c10ccdbba308d213fc8c759)
It holds a set of inputs from the client, and uses them to generate and
display paths from source/target. Left click sets the source, right
click sets the target.
Pathmap support too, if no target is set we display the paths from every
turf in the map to the source, if one is set we build a path TO it from
the source.
I had to add COMSIG_MOB_CLICKON to observers to make this work (tho idk
why it didn't exist already), I also removed the everpresent colorblind
datum from admin datums, only needs to exist if they're using it.
[Adds a mutable_appearance helper that dirlocks them, wallening port
which I thought might be useful here, and will likely be useful
elsewhere in
future](https://github.com/tgstation/tgstation/commit/87f752e7c361ff47d62452f2f1ea805458f71b66)
[Fixes an infinite loop in pathmaps if we tried to pull a cached path to
an unreachable target, && not ||
4head](https://github.com/tgstation/tgstation/commit/10086a655df817c9f4494f9aac879c85a6059719)
[Fixes JPS not dealing with border objects properly. They violate some
of the assumptions JPS makes, so we need to backfill them with checks.
These basically read as (if the thing that should normally take this
path can't reach this turf, can
we?)](https://github.com/tgstation/tgstation/commit/f56cc4dd434cecee89879aea500bd1c9d2f38ce6)
## Why It's Good For The Game
Maybe deals with #80619?
Adds more robust testing tools for pathfinding, should allow people to
better understand/debug these systems. I added this with the idea of
adding multiz support but I don't have the time for that rn.
JPS will work around thindows better, that's nice.
https://file.house/IrBiR0bGxoKw1jJJoxgMRQ==.mp4
## Changelog
🆑
fix: Fixed our pathfinding logic getting deeply confused by border
objects
admin: Added clientside displayed pathfinding debug tools, give em a go
/🆑
Renames all uses of caller, as they (currently) shadow the new byond var
and will in future error
Ups our "wan if compiled after" experiement compile version to 516
Adds an alternate 516 unit test
## About The Pull Request
Somewhat of a port of
https://github.com/ParadiseSS13/Paradise/pull/26401, albeit re-done from
scratch (with the power of find and replace)
Caller is a protected/reserved var in 516. We use it a lot. It's used in
more places than this, but I'm a perfectionist and can't think of better
names for most of the other uses (mostly mob AI, holocall, and
`InterceptClickOn` related), so I'm just doing pathfinding for now.
## Why It's Good For The Game
Prep for compiling on 516
## Changelog
No user-facing changes - this is merely renaming vars.
## About The Pull Request
adds repairbots to the game!

this pr serves as a massive rework and buff to floorbots. i was a bit
sad that they dont get built much anymore so ive given them tons of more
utilities and uses.
Repairbots still inherit to place tiles and repair breaches. but they
can now rebuild walls, rebuild windows and repair structure and
machinery. Also Ive given them voicelines to add more character to them.
In short, they are very depressed with their job (however they express
their happy go lucky attitude when u emag them where they will start
deconstructing the station)
to demonstrate capabilities, here's a slightly sped up clip of some
repairbots patching up an area that was maxcapped 4 times:
https://github.com/user-attachments/assets/bddac3b0-1984-4571-85d3-c5283dd7c0de
When repairbots feel threatened, they will retract into their little
toolbox which u can pick up and hold in ur hand, either to conveniently
carry and plop them down at breached sites, or to bash skull with it
U can build them using a toolbox, proximity sensor, cyborg arm and a
conveyor belt
## Why It's Good For The Game
refactors floorbots and makes them alot more useful tools for engineers
to use
## Changelog
🆑
refactor: floorbots have been refactored, please report any bugs
add: adds repairbots to the game!
/🆑
## Why It's Good For The Game
Clarity and consistency regarding DM's systems.
Internally, `eye` is used for anything that controls the client's view.

How `eye` is used in DM is consistent with how we use the term, so I
figured this would add clarity.
Being named mob/camera also makes it unclear exactly what it's doing.
The name implies that it would function similar to how mob/camera/ai_eye
does, but most of the time it's only used as... an eye.
My ulterior reason for this PR is that I want to clean up
mob/camera/ai_eye and it's subtypes after this.
## Changelog
🆑
server: mob/camera has been renamed to mob/eye, which may break
downstreams
/🆑
---------
Co-authored-by: Ghom <42542238+Ghommie@users.noreply.github.com>
## About The Pull Request
this is a revival of #82635 . i got permission from potato to reopen
this, he did almost all the work. i only just solved the conflicts and
fixed all the bugs that were preventing the original from being merged
(but it should be TMed first)
## Why It's Good For The Game
slightly improves the performance of basic mob AI
## Changelog
🆑
LemonInTheDark
refactor: able_to_run and incapacitated have been refactored to be event
based
/🆑
---------
Co-authored-by: LemonInTheDark <58055496+LemonInTheDark@users.noreply.github.com>
Co-authored-by: ZephyrTFA <matthew@tfaluc.com>
## About The Pull Request
Fixes several errors to spelling, grammar, and punctuation.
## Why It's Good For The Game
## Changelog
🆑
spellcheck: fixed a few typos
/🆑
## About The Pull Request
1. Fixes the modsuit pathfinder module's pathfinding for the second
time. This time AI idling broke it, we just make it not idle.
2. Changes the heuristic used by JPS nodes from Chebyshev distance to
Euclidean distance. I have no real logical explanation, it just appeared
to produce a more optimal path. CC @LemonInTheDark
3. Renames `get_dist_euclidian()` to `get_dist_euclidean()`.
Red line: Euclidean dist JPS path (roughly)
Green line: Chebyshev dist JPS path (roughly)

## Changelog
🆑
fix: MODsuit pathfinder module works. Again.
code: AI pathfinding should produce slightly better paths.
/🆑
## About The Pull Request
After https://github.com/tgstation/tgstation/pull/80628, these shouldn't
be needed anymore right?
## Why It's Good For The Game
Cleans up some vestigial code
## Changelog
EDIT: Not player-facing.
## About The Pull Request
Most of these are mine that I just forgot about, only one I think anyone
cares about is the one in mobs.dm about making delta time match
subsystem yielding, but I think it's a bad idea so it's gone
Oh also, replaces an old comment of mine with an actual explanation
(it's about the icon cache and shit)
## About The Pull Request
Implements /datum/pathfind/sssp, which generates /datum/path_map
/datum/path_maps allow us to very efficently generate paths to any turf
they contain from their central point.
We're effectively running the single source shortest paths algorithm.
We expand from the center turf, adding turfs as they're found, and then
processing them in order of addition.
As we go, we remember what turf "found" us first. Reversing this chain
gives us the shortest possible path from the center turf to any turf in
its range (or the inverse).
This isn't all that useful on its own, outside of a few niche cases
(Like if we wanted to get the farthest reachable turf from the center)
but if we could reuse the map more then once, we'd be able to swarm
to/from a point very easily.
Reuse is a bit troublesome, reqiures a timeout system and a way to
compare different movables trying to get paths.
I've implemented it tho. I've refactored CanAStarPass to take a datum,
/datum/can_pass_info. This is built from a movable and a list of access,
and copies all the properties that would impact pathfinding over onto
itself.
There is one case where we don't do this, pathing over openspace
requires checking if we'd fall through the openspace, and the proc for
that takes an atom.
So instead we use the weakref to the owner that we hold onto, and hold
copies of all the values that would impact the check on the datum.
When someone requests a swarmed path their pass info is compared with
the pass info of all other path_maps centered on their target turf. If
it matches and their requested timeout isn't too short, we just reuse
the map.
Timeout is a tricky thing because the longer a map exists the more out
of date it gets.
I've added a few age defines that let you modulate your level of risk
here. We default to only allowing maps that are currently
being generated, or finished generating in our tick.
Hopefully this prevents falling into trouble, but consumers will need to
allow "failed" movements.
As a part of this datumized pass info, I've refactored pathfinding to
use access lists, rather then id cards directly. This also avoids some
dumbass harddel oppertunities, and prevents an idcard from changing mid
path.
Did a few things to the zPass procs, they took args that they did NOT
need, and I thought it'd be better to yeet em.
If you'd all like I could undo the caching/can_pass_info stuff if you'd
all like. I think it's useful generally because it avoids stuff changing
mid pathfind attempt, but if it's too clunky I could nuke it.
Oh also I added optional args to jps that constricts how it handles
diagonals. I've used this to fix bot paths.
## Why It's Good For The Game
Much of this is redundant currently. I'm adding it because it could have
saved hugglebippers, and because I get the feeling it'll be useful for
"grouping" mobs like bees and such.
We're doing more basic mob work currently and I want to provide extra
tools for that work.
https://github.com/tgstation/tgstation/assets/58055496/66aca1f9-c6e7-4173-9c38-c40516d6d853
## Changelog
🆑
add: Adds swarmed pathfinding, trading accuracy for potential
optimization of used correctly
fix: Bots will no longer take diagonal paths, preventing weirdo looking
path visuals
refactor: Refactored bits of pathfinding code, hopefully easier to add
new pathfinding strategies now
/🆑