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>

code/modules/projectiles/gun.dm

@@ -59,6 +59,7 @@
 	origin_tech = list(TECH_COMBAT = 1)
 	attack_verb = list("struck", "hit", "bashed")
 	zoomdevicename = "scope"
+	light_system = DIRECTIONAL_LIGHT
 
 /*
  * Suppression vars
@@ -461,9 +462,11 @@
 
 			handle_post_fire() // should be safe to not include arguments here, as there are failsafes in effect (?)
 
+			var/prev_light = light_range
 			if (muzzle_flash)
-				set_light(muzzle_flash)
-				addtimer(CALLBACK(src, TYPE_PROC_REF(/atom, set_light), 0), 2, TIMER_UNIQUE | TIMER_OVERRIDE)
+				set_light_range(muzzle_flash)
+				set_light_on(TRUE)
+				addtimer(CALLBACK(src, PROC_REF(reset_light_range), prev_light), 0.5 SECONDS)
 			update_icon()
 
 		if(i < burst)
@@ -477,6 +480,12 @@
 
 	accuracy = initial(accuracy)	//Reset the gun's accuracy
 
+/// called by a timer to remove the light range from muzzle flash
+/obj/item/gun/proc/reset_light_range(lightrange)
+	set_light_range(lightrange)
+	if(lightrange <= 0)
+		set_light_on(FALSE)
+
 //obtains the next projectile to fire
 /obj/item/gun/proc/consume_next_projectile()
 	return null
@@ -513,8 +522,11 @@
 				)
 
 		if(muzzle_flash)
-			set_light(muzzle_flash)
-			addtimer(CALLBACK(src, TYPE_PROC_REF(/atom, set_light), 0), 2)
+			var/prev_light = light_range
+			if (muzzle_flash)
+				set_light_range(muzzle_flash)
+				set_light_on(TRUE)
+				addtimer(CALLBACK(src, PROC_REF(reset_light_range), prev_light), 0.5 SECONDS)
 
 	if(recoil)
 		shake_camera(user, recoil + 1, recoil)

code/modules/projectiles/projectile.dm

@@ -720,6 +720,8 @@
 		process_hitscan()
 		if(QDELETED(src))
 			return
+	else
+		generate_muzzle_flash()
 	if(!(datum_flags & DF_ISPROCESSING))
 		START_PROCESSING(SSprojectiles, src)
 	pixel_move(pixel_speed_multiplier, FALSE) //move it now!
@@ -1009,6 +1011,19 @@
 		beam_segments[beam_index] = point_cache
 	generate_hitscan_tracers(null, null, impacting)
 
+/obj/projectile/proc/generate_muzzle_flash(duration = 3)
+	if(duration <= 0)
+		return
+	if(!muzzle_type || suppressed)
+		return
+	var/datum/point/p = trajectory
+	var/atom/movable/thing = new muzzle_type
+	p.move_atom_to_src(thing)
+	var/matrix/M = new
+	M.Turn(original_angle)
+	thing.transform = M
+	QDEL_IN(thing, duration)
+
 /obj/projectile/proc/generate_hitscan_tracers(cleanup = TRUE, duration = 3, impacting = TRUE)
 	if(!length(beam_segments))
 		return
@@ -1024,7 +1039,8 @@
 		matrix.Turn(original_angle)
 		thing.transform = matrix
 		thing.color = color
-		thing.set_light(muzzle_flash_range, muzzle_flash_intensity, muzzle_flash_color_override? muzzle_flash_color_override : color)
+		thing.set_light_range_power_color(muzzle_flash_range, muzzle_flash_intensity, muzzle_flash_color_override ? muzzle_flash_color_override : color)
+		thing.set_light_on(TRUE)
 		QDEL_IN(thing, duration)
 	if(impacting && impact_type && duration > 0)
 		var/datum/point/p = beam_segments[beam_segments[beam_segments.len]]
@@ -1034,7 +1050,8 @@
 		matrix.Turn(Angle)
 		thing.transform = matrix
 		thing.color = color
-		thing.set_light(impact_light_range, impact_light_intensity, impact_light_color_override? impact_light_color_override : color)
+		thing.set_light_range_power_color(impact_light_range, impact_light_intensity, impact_light_color_override? impact_light_color_override : color)
+		thing.set_light_on(TRUE)
 		QDEL_IN(thing, duration)
 	if(cleanup)
 		cleanup_beam_segments()
@@ -1075,6 +1092,7 @@
 	bullet.original = target
 	bullet.preparePixelProjectile(target, src)
 	bullet.fire()
+
 	return bullet
 
 

code/modules/projectiles/projectile/beams.dm

@@ -13,6 +13,7 @@
 	var/frequency = 1
 	hitscan = 1
 	invisibility = 101	//beam projectiles are invisible as they are rendered by the effect engine
+	color = COLOR_RED
 
 	muzzle_type = /obj/effect/projectile/muzzle/laser
 	tracer_type = /obj/effect/projectile/tracer/laser