## About The Pull Request
516 requires float layered overlays to be using pixel_w and pixel_z
instead of pixel_x and pixel_y respectively, unless we want
visual/layering errors. This makes sense, as w,z are for visual effects
only. Sadly seems we were not entirely consistent in this, and many
things seem to have been using x,y incorrectly.
This hopefully fixes that, and thus also fixes layering issues. Complete
1:1 compatibility not guaranteed.
I did the lazy way suggested to me by SmArtKar to speed it up (Runtiming
inside apply_overlays), and this is still included in the PR to flash
out possible issues in a TM (Plus I will need someone to grep the
runtimes for me after the TM period to make sure nothing was missed).
After this is done I'll remove all these extra checks.
Lints will probably be failing for a bit, got to wait for [this
update](https://github.com/SpaceManiac/SpacemanDMM/commit/4b77cd487d0a7b6a069df20356b701af5b20489d)
to them to make it into release. Or just unlint the lines, though that's
probably gonna produce code debt
## Why It's Good For The Game
Fixes this massive 516 mess, hopefully.
closes#90281
## Changelog
🆑
refactor: Changed many of our use cases for pixel_x and pixel_y
correctly into pixel_w and pixel_z, fixing layering issues in the
process.
/🆑
---------
Co-authored-by: SmArtKar <44720187+SmArtKar@users.noreply.github.com>
Co-authored-by: SmArtKar <master.of.bagets@gmail.com>
## About The Pull Request
Hello friends, I've been on a bit of a lighting kick recently, and I
decided I clearly do not have enough things to work on as it is.
This pr adds angle support to static lights, and a concepting/debug tool
for playing with lights on a map.
Let's start from first principles yeah?
### Why Angled Lights?
Mappers, since they can't actually see a light's effect in editor, tend
to go off gut.
That gut is based more off what "makes sense" then how things actually
work
This means they'll overplace light sources, and also they tend to treat
lights, particularly light "bars" (the bigger ones) as directional.
So you'll have two lights on either sides of a pillar, lights inside a
room with lights outside pointing out, etc.

This has annoying side effects. A lot of our map is overlit, to the
point that knocking out a light does.... pretty much nothing.
I find this sad, and would like to work to prevent it. I think dark and
dim, while it does not suit the normal game, is amazing for vibes, and I
want it to be easier to see that.
Angled lights bring how lights work more in line with how mappers expect
lights work, and avoids bleedover into rooms that shouldn't be bled
into, working towards that goal of mine.
### How Angled Lights?
This is more complex then you'd first think so we'll go step by step

Oh before we start, some catchup from the last time I touched lighting
code.
Instead of doing a lighting falloff calculation for each lighting corner
(a block that represents the resolution of our lights) in view we
instead generate cached lightsheets. These precalculate and store all
possible falloffs for x and y distances from a source.
This is very useful for angle work, since it makes it almost totally
free.
Atoms get 2 new values. light_angle and light_dir
Light angle is the angle the light uses, and light_dir is a cardinal
direction it displays in
We take these values, and inside sheetbuilding do some optional angle
work. getting the center angle, the angle of a pair of coords, and then
the delta between them.
This is then multiplied against the standard falloff formula, and job
done.
We do need some extra fenangling to make this all work nicely tho.
We currently use a pixel turf var stored on the light source to do
distance calculations.
This is the turf we pretend the light source is on for visuals, most
often used to make wall lights work nice.
The trouble is it's not very granular, and doesn't always have the
effect you might want.
So, instead of generating and storing a pixel turf to do our distance
calculations against, we store x and y offset variables.
We use them to expand our working range and sheet size to ensure things
visually make sense, and then offset any positions by them.
I've added a way for sources to have opinions on their offsets too, and
am using them for wall lights.
This ensures the angle calculations don't make the wall behind a light
fulldark, which would be silly.
### Debug Tool?
In the interest of helping with that core problem, lights being complex
to display, I've added a prototyping tool to the game.
It's locked behind mapping verbs, and works about like this.
Once the verb is activated, it iterates over all the sources in the
world (except turfs because those are kinda silly), outlining and
"freezing" them, preventing any future changes.
Then, it adds 3 buttons to the owners of a light source.

The first button toggles the light on and off, as desired.
The third allows you to move the source around, with a little targeting
icon replacing your mouse
The second tho, that's more interesting.
The second button opens a debug menu for that light

There's a lot here, let's go through it.
Bit on the left is a list of templates, which allow you to sample
existing light types (No I have no idea why the background is fullwhite,
need to work on that pre merge)
You can choose one by clicking it, and hitting the upload button.
This replaces your existing lighting values with the template's,
alongside replacing its icon and icon state so it looks right.
There are three types as of now, mostly for categorization. Bar, which
are the larger typically stronger lights, Bulb, which are well, bulbs,
and Misc which could be expanded, but currently just contains floor
lights.
Alongside that you can manually edit the power, range, color and angle
of the focused light.
I also have support for changing the direction of the light source,
since anything that uses directional lighting would also tie light dir
to it.
This isn't *always* done tho, so I should maybe find a way to edit light
dir too.
My hope is this tool will allow for better concepting of a room's
lights, and easier changing of individual object's light values to suit
the right visuals.
### Lemon No Why What
Ok so I applied angle lights to bars and bulbs, which means I am
changing the lighting of pretty much every map in the codebase.
I'm gonna uh, go check my work.
Alongside this I intend to give lighting some depth. So if there's room
to make a space warmer, or highlight light colors from other sources, I
will do that.
(Images as examples)

I also want to work on that other goal of mine, making breaking lights
matter. So I'll be doing what I can to ensure you only need to break one
light to make a meaningful change in the scene.
This is semi complicated by one light source not ever actually reaching
fullbright on its own, but we do what we must because we can.

I'm as I hope you know biased towards darker spaces, I think contrast
has vibes.
In particular I do not think strong lights really suit maintenance.
Most of what is used there are bulbs, so I'm planning on replacing most
uses with low power bulbs, to keep light impacts to rooms, alongside
reducing the amount of lights placed in the main tunnels

**If you take issue with this methodology please do so NOW**, I don't
want to have to do another pass over things.
Oh also I'm saving station maps for last since ruins are less likely to
get touched in mapping march and all.
### Misc + Finishing Thoughts
Light templates support mirroring vars off typepaths using a subtype,
which means all the templates added here do not require updating if the
source type changes somehow. I'd like to expand the template list at
some point, perhaps in future.
I've opened this as a draft to make my intentions to make my changes to
lights known, and to serve as motivation for all the map changes I need
to do.
### Farish Future
I'm unhappy with how we currently configure lights. I would like a
system that more directly matches the idea of drawing falloff curves,
along with allowing for different falloffs for different colors,
alongside extending the idea to angle falloff.
This would make out of engine lighting easier, allow for nicer looking
lights (red to pink, blue to purple, etc), and improve accessibility by
artists.
This is slightly far off, because I have other obligations and it's
kinda complicated, but I'd like to mention it cause it's one of my many
pipedreams.
## Changelog
🆑
add: Added angle lighting, applies it to most wall lights!
add: Adds a lighting prototyping tool, mappers go try it out (it's
locked behind the mapping verb)
/🆑
---------
Co-authored-by: MMMiracles <lolaccount1@hotmail.com>
About The Pull Request
I've reworked multiz. This was done because our current implementation of multiz flattens planes down into just the openspace plane. This breaks any effects we attach to plane masters (including lighting), but it also totally kills the SIDE_MAP map format, which we NEED for wallening (A major 3/4ths resprite of all wall and wall adjacent things, making them more then one tile high. Without sidemap we would be unable to display things both in from of and behind objects on map. Stupid.)
This required MASSIVE changes. Both to all uses of the plane var for reasons I'll discuss later, and to a ton of different systems that interact with rendering.
I'll do my best to keep this compact, but there's only so much I can do. Sorry brother.
Core idea
OK: first thing.
vis_contents as it works now squishes the planes of everything inside it down into the plane of the vis_loc.
This is bad. But how to do better?
It's trivially easy to make copies of our existing plane masters but offset, and relay them to the bottom of the plane above. Not a problem. The issue is how to get the actual atoms on the map to "land" on them properly.
We could use FLOAT_PLANE to offset planes based off how they're being seen, in theory this would allow us to create lens for how objects are viewed.
But that's not a stable thing to do, because properly "landing" a plane on a desired plane master would require taking into account every bit of how it's being seen, would inherently break this effect.
Ok so we need to manually edit planes based off "z layer" (IE: what layer of a z stack are you on).
That's the key conceit of this pr. Implementing the plane cube, and ensuring planes are always offset properly.
Everything else is just gravy.
About the Plane Cube
Each plane master (except ones that opt out) is copied down by some constant value equal to the max absolute change between the first and the last plane.
We do this based off the max z stack size detected by SSmapping. This is also where updates come from, and where all our updating logic will live.
As mentioned, plane masters can choose to opt out of being mirrored down. In this case, anything that interacts with them assuming that they'll be offset will instead just get back the valid plane value. This works for render targets too, since I had to work them into the system as well.
Plane masters can also be temporarily hidden from the client's screen. This is done as an attempt at optimization, and applies to anything used in niche cases, or planes only used if there's a z layer below you.
About Plane Master Groups
BYOND supports having different "maps" on screen at once (IE: groups of items/turfs/etc)
Plane masters cannot cover 2 maps at once, since their location is determined by their screen_loc.
So we need to maintain a mirror of each plane for every map we have open.
This was quite messy, so I've refactored it (and maps too) to be a bit more modular.
Rather then storing a list of plane masters, we store a list of plane master group datums.
Each datum is in charge of the plane masters for its particular map, both creating them, and managing them.
Like I mentioned, I also refactored map views. Adding a new mapview is now as simple as newing a /atom/movable/screen/map_view, calling generate_view with the appropriate map id, setting things you want to display in its vis_contents, and then calling display_to on it, passing in the mob to show ourselves to.
Much better then the hardcoded pattern we used to use. So much duplicated code man.
Oh and plane master controllers, that system we have that allows for applying filters to sets of plane masters? I've made it use lookups on plane master groups now, rather then hanging references to all impacted planes. This makes logic easier, and prevents the need to manage references and update the controllers.
image
In addition, I've added a debug ui for plane masters.
It allows you to view all of your own plane masters and short descriptions of what they do, alongside tools for editing them and their relays.
It ALSO supports editing someone elses plane masters, AND it supports (in a very fragile and incomplete manner) viewing literally through someone else's eyes, including their plane masters. This is very useful, because it means you can debug "hey my X is yorked" issues yourself, on live.
In order to accomplish this I have needed to add setters for an ungodly amount of visual impacting vars. Sight flags, eye, see_invis, see_in_dark, etc.
It also comes with an info dump about the ui, and plane masters/relays in general.
Sort of on that note. I've documented everything I know that's niche/useful about our visual effects and rendering system. My hope is this will serve to bring people up to speed on what can be done more quickly, alongside making my sin here less horrible.
See https://github.com/LemonInTheDark/tgstation/blob/multiz-hell/.github/guides/VISUALS.md.
"Landing" planes
Ok so I've explained the backend, but how do we actually land planes properly?
Most of the time this is really simple. When a plane var is set, we need to provide some spokesperson for the appearance's z level. We can use this to derive their z layer, and thus what offset to use.
This is just a lot of gruntwork, but it's occasionally more complex.
Sometimes we need to cache a list of z layer -> effect, and then use that.
Also a LOT of updating on z move. So much z move shit.
Oh. and in order to make byond darkness work properly, I needed to add SEE_BLACKNESS to all sight flags.
This draws darkness to plane 0, which means I'm able to relay it around and draw it on different z layers as is possible. fun darkness ripple effects incoming someday
I also need to update mob overlays on move.
I do this by realiizing their appearances, mutating their plane, and then readding the overlay in the correct order.
The cost of this is currently 3N. I'm convinced this could be improved, but I've not got to it yet.
It can also occasionally cause overlays to corrupt. This is fixed by laying a protective ward of overlays.Copy in the sand, but that spell makes the compiler confused, so I'll have to bully lummy about fixing it at some point.
Behavior changes
We've had to give up on the already broken gateway "see through" effect. Won't work without managing gateway plane masters or something stupid. Not worth it.
So instead we display the other side as a ui element. It's worse, but not that bad.
Because vis_contents no longer flattens planes (most of the time), some uses of it now have interesting behavior.
The main thing that comes to mind is alert popups that display mobs. They can impact the lighting plane.
I don't really care, but it should be fixable, I think, given elbow grease.
Ah and I've cleaned up layers and plane defines to make them a bit easier to read/reason about, at least I think.
Why It's Good For The Game
<visual candy>
Fixes#65800Fixes#68461
Changelog
cl
refactor: Refactored... well a lot really. Map views, anything to do with planes, multiz, a shit ton of rendering stuff. Basically if you see anything off visually report it
admin: VV a mob, and hit View/Edit Planes in the dropdown to steal their view, and modify it as you like. You can do the same to yourself using the Edit/Debug Planes verb
/cl
About The Pull Request
Micros lighting objects, and their creation
We save a good bit of time by not walking space turfs adjacent to new objects.
We also save some time with micros in the actual underlay update logic.
I swear dude we spend like 0.8 seconds of init applying the underlay. I want threaded maptick already
Micros lighting sources, and corner creation
A: Corners were being passed just A turf, and then expected to generatecorners based on that. This is pointless.
It is better to instead pass in the coords of the bottom left turf, and then build in a circle. This saves like 0.3 seconds
B: We use so many damn datum vars in corner application that we just do not need to.
This resolves that, since it pissed me off. It's pointless. Lets cache em instead
There's some misc datum var caching going on here too. Lemme see...
Oh and a bit of shortcutting for a for loop, since it was a tad expensive on its own.
Also I removed the turfs list, because it does fucking nothing. Why is this still here.
All my little optimizations save about 1 second of init I think
Not great, but not bad, and plus actual lighting work is faster now too
Why It's Good For The Game
Speed
It occured to me, we didn't have a good way to "see" what turfs were actually being updated
Figured I'd fix that
I've also added some debug vars on SSlighting to make testing with/without some checks easier
Speaking of which, I've added a second check to lighting corner updating
Basically, if our past and current cached rgb values are the same, there's no point updating
This is possible because static lighting is relative. If you've got a
TON of blue, it'll outweight the red and green you have in smaller amounts
We also do some rounding to ensure values look right
Similarly, if you've got roughly the same lighting, and a bit of something you already have a lot of is added, you're not likely to actually enter a new "bracket" of color
Anyway uh, it's hard to profile this, but I've seen it help quite a bit, mostly with things like emergency lighting that updates lighting in small amounts often, and in constricted spaces.
To some extent just comes down to map design
credit to zewaka for the idea of using underlays
turns the lighting object movables that were unnecessary and increased maptick into a datum which then applies and removes an underlay in update(). also applies a lot of general lighting clean ups (mostly using as anything in loops and fixing single letter var names).
multiz is a little different by necessity, now only the bottom turf's lighting matters in the brightness of the top turf unlike master where the bottom turf's lighting object is hidden from the vis_contents of the top turf. there are still some kinks to iron out here though, since currently objects suspended in openspace (like tram platforms) look bad and glass floors look bad too
only thing i have left to do is make multiz work (well)
UPDATE: multiz now appears the same as far as i can tell, its possible there are other situations in which its different but datum mats work and it automatically updates if the turf below changes. now i just need to make the system less finnicky if at all possible (and possibly merge managed_turf_vis_content with managed_overlays maybe?)
new update: its basically equivalent to normal multiz as far as i can tell (visually at least, in the circumstances ive tested so far)
NEW NEW UPDATE: turfs no longer have the VIS_HIDE vis_flag and multiz works without stacking the lighting from the floor below! so this shouldnt have any overt drawbacks to master anymore
1 needless movable per tile is terrible for maptick. this is probably a larger improvement than my emissive blocker change in terms of maptick. im guessing we'd get around 0.6 average maptick per player after this where currently we get 0.85 or so
Edit: according to lemon, sybil reached 0.71 maptick per person when tm'd with this
if this is a big enough improvement i might finally be able to get rid of the Gone discord avatar
Removed a bunch of back reference lists that were either entirely unused, or contained references that could be found within the datums contained in other lists.
lighting corner datums now get deleted with unused.
light sources no longer track lighting corners where the appiled light rounds to 0.
Fix lighting on turfs that gained dynamic lighting mid round. lazy init corner datums.
these two are related. by decoupling corner datums from the turfs dynamic lighting state, we can use them to know what level of light a non-dynamic light turf should have once it gains dynamic light.
Also should free up some memory not storing these datums in maint. Corner datums only exist on a turf that has light cast upon it by the dynamic lighting system.
Lighting corners are now lazy inited and deleted. they should always (and only exist) if there is a light source shining on it within range (even if the turf has no dynamic lighting). This is needed to support turfs that become lighting enabled mid round. On the plus side, they will no longer be generated on full dark turfs.
This *seems* to be a decent speed up just in the appearent time it takes break all lights to process, and dview wasn't really needed here.
Minor oddies can occur on bigger lights near their edges, but not enough to justify the extra cost.
Rather then remove the light from all tiles, then re-add the light to all tiles, we just go thru each tile and diff the light level from the last value we added to it. (since this is tracked)
This cut the proc calls for updating lights in half.
Lighting objects now default to full brite rather then full dark so shuttles aren't as immersion breaking when they transit.
Made lighting more agressive about clearing empty lists.
* Add the system for managed global variables
* Travis ban old globals
* So you CAN inline proccall, that's neat
* Fix that
* master.dm
* Remove the hack procs
* Move InitGlobals to the proper spot
* configuration.dm
* Fix the missing pre-slash
* clockcult.dm
* This is probably for the best
* Doy
* Fix shit
* Rest of the DEFINES tree
* Fix
* Use global. for access
* Update find_references_in_globals
Always hated that proc
Whoever made it must've bee a r e a l idiot...
* __HELPERS tree
* Move global initialization to master.
Fix the declaration
* database.dm
* Dat newline
* I said DECLARATIVE order!
* Here's something you can chew on @Iamgoofball
* game_modes.dm
* Fix this
* genetics.dm
* flavor_misc.dm
* More stuff
* Do it mso's way. Keep the controllers as global
* Make master actually see it
* Fix
* Finish _globalvars/lists
* Finish the rest of the _globalvars tree
* This is weird
* Migrate the controllers
* SLOTH -> GLOB
* Lighting globals
* round_start_time -> ticker
* PAI card list -> pai SS
* record_id_num -> static
* Diseases list -> SSdisease
* More disease globals to the SS
* More disease stuff
* Emote list
* Better and better
* Bluh
* So much stuff
* Ahh
* Wires
* dview
* station_areas
* Teleportlocs
* blood_splatter_icons
* Stuff and such
* More stuff
* RAD IO
* More stuff and such
* Blob shit
* Changeling stuff
* Add "Balance" to changelogs
* Balance for changelog compiler + Auto Tagging
* Update the PR template
* hivemind_bank
* Bip
* sacrificed
* Good shit
* Better define
* More cult shit
* Devil shit
* Gang shit
* > borers
Fix shit
* Rename the define
* Nuke
* Objectives
* Sandbox
* Multiverse sword
* Announce systems
* Stuff and such
* TC con
* Airlock
* doppllllerrrrrr
* holopads
* Shut up byond you inconsistent fuck
* Sneaky fuck
* Burp
* Bip
* Fixnshit
* Port without regard
* askdlfjs;
* asdfjasoidojfi
* Protected globals and more
* SO MANY
* ajsimkvahsaoisd
* akfdsiaopwimfeoiwafaw
* gsdfigjosidjfgiosdg
* AHHHHHHHHHHHHHHHHHHHHHHH!!!!!
* facerolll
* ASDFASDFASDF
* Removes the unused parts of dmm_suite
* WIP
* Fix quote
* asdfjauwfnkjs
* afwlunhskjfda
* asfjlaiwuefhaf
* SO CLOSE
* wwwweeeeeewwwww
* agdgmoewranwg
* HOLY MOTHER OF FUCK AND THATS JUST HALF THE JOB?!?
* Fix syntax errors
* 100 errors
* Another 100
* So many...
* Ugh
* More shit
* kilme
* Stuuuuuufffff
* ajrgmrlshio;djfa;sdkl
* jkbhkhjbmjvjmh
* soi soi soi
* butt
* TODAY WE LEARNED THAT GLOBAL AND STATIC ARE THE EXACT SAME FUCKING THING
* lllllllllllllllllllllllllllllllllllllllllll
* afsdijfiawhnflnjhnwsdfs
* yugykihlugk,kj
* time to go
* STUFFF!!!
* AAAAAAAAAAAAAAAAAHHHHHHHHHHHHHHHHHHHHHHHHHHH!!!!!!!!!!!!!!!!!!!!!!!
* ngoaijdjlfkamsdlkf
* Break time
* aufjsdklfalsjfi
* CONTROL KAY AND PRAY
* IT COMPILEELEELELAKLJFKLDAFJLKFDJLADKJHFLJKAJGAHIEJALDFJ!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
* Goteem
* Fix testing mode
* This does not belong in this PR
* Convert it to a controller
* Eh, fuck this option
* Revert controllerization Ill do it some other time
* Fix
* Working controllerization
* FOR THE LOVE OF CHRIST PROTECT THE LOGS
* Protect admins and deadmins
* Use the inbuilt proc
* Revert "Lighting micro optimizations and fixes (#24939)"
This reverts commit 78bbbfe20a.
* vg refactor stage 1
* Fix runtime in get_turf_pixel
* fix lighting on turfs
* Fix certain things reading light levels wrong.
* Made SS faster/better by making it split its tick allotment up between it's 3 tasks
* istypeless loops @pjb3005
/proc/typed_loop 6.826 6.830 6.858 190761
/proc/typeless_loop 5.582 5.586 5.620 190435
* lazy init lists