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Matt Atlas 94d92803b4 Replaces our lighting system with CM's. (#21465)
Depends on #21458.

Ports https://github.com/cmss13-devs/cmss13/pull/4229, with the original
authors as:

- https://github.com/tgstation/TerraGov-Marine-Corps/pull/1964 for the
lighting controller (A-lexa)
- https://github.com/tgstation/TerraGov-Marine-Corps/pull/4747 and
https://github.com/tgstation/TerraGov-Marine-Corps/pull/7263 for the
lighting (TiviPlus)
- https://github.com/tgstation/tgstation/pull/54520 for the dir lighting
component
- https://github.com/tgstation/tgstation/pull/75018 for the out of
bounds fix in lighting
- https://github.com/tgstation/TerraGov-Marine-Corps/pull/6678 for the
emissives (TiviPlus)

The main driving reason behind this is that current lighting consumes
way too much processing power, especially for things like odysseys/away
sites where a billion light sources are processing/moving at once and
the game slows down to a crawl. Hopefully this improves the situation by
a good margin, but we will need some testmerging to confirm that.
<img width="1349" height="1349" alt="image"
src="https://github.com/user-attachments/assets/1059ba2b-c0c5-495a-9c76-2d75d0c42bf2"
/>
<img width="1349" height="1349" alt="image"
src="https://github.com/user-attachments/assets/9704b0f6-4cf6-4dfd-a6cb-5702ad07d677"
/>


- [x] Resolve todos
- [x] Look into open space fuckery (border objects)

---------

Co-authored-by: Matt Atlas <liermattia@gmail.com>
Co-authored-by: JohnWildkins <john.wildkins@gmail.com>
2025-11-04 21:27:42 +00:00

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/atom
///The light source, datum. Dont fuck with this directly
var/tmp/datum/static_light_source/static_light
///Static light sources currently attached to this atom, this includes ones owned by atoms inside this atom
var/tmp/list/static_light_sources
///Pretty simple, just updates static lights on this atom
/atom/proc/static_update_light()
set waitfor = FALSE
if (QDELETED(src))
return
if (!light_power || !light_range) // We won't emit light anyways, destroy the light source.
QDEL_NULL(static_light)
else
if(!ismovableatom(loc)) // We choose what atom should be the top atom of the light here.
. = src
else
. = loc
if(static_light) // Update the light or create it if it does not exist.
static_light.update(.)
else
static_light = new/datum/static_light_source(src, .)