MILLA phase 2 (#27659)

* MILLA phase 2

* Lint.

* Build Rust library

* Assorted bugfixes and tweaks

* Simplify fire mechanics and make hotspot sending to DM more reliable.

* Assorted tweaks, fixed an issue in the core engine and removed the softcap it made necesary.

* SM fixes, slower plasmafire, less overpowered pyro anomalies, and air alarm improvements.

* Review fixes.

* Build Rust library

* Unbalanced icon.

* Rebalance immovable rods.

* Unbalanced has alerts, can fight airflow (but get slowed)

* Build Rust library

* Stronger space cooling, slower temperature flow, faster burns, burnt floors, and a hotspot display fix.

* Build Rust library

* Tweaks to avoid merge conflict

* Oops.

* Build Rust library

* Rebalance wind.

* Rebalance temperature flow and space cooling.

* Fix gas flamethrower.

* Build Rust library

* Make air push slowdown directional, so you don't get slowed while moving with the air.

* Variable name cleanup.

* Reduce the speed of wind pushes.

* Prevent wind pushes from breaking your pull.

* Prevent swaps during wind push.

* Made supermatter crytals reliably run last in atmos machinery.

* Sped up plasmafire burning, but dropped the minimum burn amount.

* Rebalanced SM heat output.

* Rebalanced pyro anomaly.

* Build Rust library

* Lint

* Build Rust library

* Uncap fuel burnt readout.

* Added Custom air alarm mode, dropped Refill cap to ONE_ATMOSPHERE.

* Updated air alarm modes to use pressure settings instead of ONE_ATMOSPHERE

* Added a list of areas not in Filtering to atmos alert computer.

* Increase pressure gradient and vent output, especially at low distro pressure.

* Changed Immovable Rod from Moderate to Major.

* Lint

* Build Rust library

* More lint!

* Build Rust library

* Magboots, scaled slowdown, and nukie borg immunity

* Wind image

* Wind v2

* Wind v3

* pngcrush

* pngcrush again

* Moved hotspot removal into SSair, add wind effect.

* Lint

* Build Rust library

* Fix hotspots.

* Hotspot visual based on gas burnt

* Build Rust library

* Scaled wind to gas amount, stopped first wind push while moving.

* Made Rust panic logging safer.

* Made MILLA full tick and sleep timers more honest.

* Pressure overlay, ghost mode, atmos goggles.

* Build Rust library

* Lint

* Build Rust library

* More lint-y stuff.

* Build Rust library

* Repair pressure overlay if it loses its loc.

* Bind pressure overlays to their tile better.

* Build Rust library

* Make the pressure overlay work on z=1 and not proliferate effects.

* Don't block the supply shuttle.

* Don't fine for special effects.

* Maybe don't fine for ghosts, either.

* Build Rust library

* Make pressure overlay play nice with shuttles.

* Build Rust library

* Pressure scanning for borgs.

* Build Rust library

* Lint

* Build Rust library

* Made explosions not generate so much wind.

* Removed an old and non-functional proc.

* Clientless mobs can get pushed again.

* Build Rust library

* cargo fmt

* Build Rust library

* Don't divide by zero.

* Plasmafire generator for the Shadow

* Update shadow to use plasmafire generators

* Fix shadow's plasmafire generators going out on depart.

* Prevent heat2color from runtiming at absolute zero.

* Better nanofrost

* Build Rust library

* Singularity immunity

* Build Rust library

* Add back meson mode to atmospheric scanner goggles, so they don't stare deeply into the SM

* Build Rust library

* Dump panic outputs into data/ instead.

* Build Rust library

* Apply suggestions from code review

Co-authored-by: Burzah <116982774+Burzah@users.noreply.github.com>
Signed-off-by: Charlie Nolan <funnyman3595@gmail.com>

* Saner handling of MILLA crash.

* Build Rust library

---------

Signed-off-by: Charlie Nolan <funnyman3595@gmail.com>
Co-authored-by: paradisess13[bot] <165046124+paradisess13[bot]@users.noreply.github.com>
Co-authored-by: Burzah <116982774+Burzah@users.noreply.github.com>

code/game/objects/effects/effect_system/effects_smoke.dm

@@ -175,53 +175,71 @@
 	name = "nanofrost smoke"
 	color = "#B2FFFF"
 	opacity = FALSE
+	var/spread_range = 6
+	lifetime = 0.5 SECONDS_TO_LIFE_CYCLES
 
 /datum/effect_system/smoke_spread/freezing
 	effect_type = /obj/effect/particle_effect/smoke/freezing
-	var/blast = FALSE
 
-/datum/effect_system/smoke_spread/freezing/proc/Chilled(atom/A)
-	if(issimulatedturf(A))
-		var/turf/simulated/T = A
-		if(!T.blocks_air)
-			var/datum/milla_safe/smoke_spread_chill/milla = new()
-			milla.invoke_async(src, T)
-		for(var/obj/machinery/atmospherics/unary/vent_pump/V in T)
-			if(!isnull(V.welded) && !V.welded) //must be an unwelded vent pump.
-				V.welded = TRUE
-				V.update_icon()
-				V.visible_message("<span class='danger'>[V] was frozen shut!</span>")
-		for(var/obj/machinery/atmospherics/unary/vent_scrubber/U in T)
-			if(!isnull(U.welded) && !U.welded) //must be an unwelded vent scrubber.
-				U.welded = TRUE
-				U.update_icon()
-				U.visible_message("<span class='danger'>[U] was frozen shut!</span>")
-		for(var/mob/living/L in T)
-			L.ExtinguishMob()
-		for(var/obj/item/Item in T)
-			Item.extinguish()
+/obj/effect/particle_effect/smoke/freezing/process()
+	. = ..()
+	var/turf/T = get_turf(src)
+	if(!istype(T))
+		return
 
-/datum/milla_safe/smoke_spread_chill
+	for(var/obj/machinery/atmospherics/unary/vent_pump/V in T)
+		if(!isnull(V.welded) && !V.welded) //must be an unwelded vent pump.
+			V.welded = TRUE
+			V.update_icon()
+			V.visible_message("<span class='danger'>[V] was frozen shut!</span>")
+	for(var/obj/machinery/atmospherics/unary/vent_scrubber/U in T)
+		if(!isnull(U.welded) && !U.welded) //must be an unwelded vent scrubber.
+			U.welded = TRUE
+			U.update_icon()
+			U.visible_message("<span class='danger'>[U] was frozen shut!</span>")
+	for(var/mob/living/L in T)
+		L.ExtinguishMob()
+	for(var/obj/item/Item in T)
+		Item.extinguish()
 
-/datum/milla_safe/smoke_spread_chill/on_run(datum/effect_system/smoke_spread/smoke, turf/T)
+	var/datum/milla_safe/nanofrost_extinguish/milla = new()
+	milla.invoke_async(src, T)
+
+/datum/milla_safe/nanofrost_extinguish/on_run(obj/effect/particle_effect/smoke/freezing/smoke, turf/T)
+	if(!istype(T))
+		return
 	var/datum/gas_mixture/env = get_turf_air(T)
-	if(get_dist(T, smoke) < 2) // Otherwise we'll get silliness like people using Nanofrost to kill people through walls with cold air
-		env.set_temperature(2)
-	for(var/obj/effect/hotspot/H in T)
+	for(var/obj/effect/hotspot/fake/H in T)
 		qdel(H)
-		if(env.toxins())
-			env.set_nitrogen(env.nitrogen() + env.toxins())
-			env.set_toxins(0)
 
-/datum/effect_system/smoke_spread/freezing/set_up(amount = 5, only_cardinals = FALSE, source, desired_direction, datum/reagents/chemicals, blasting = FALSE)
-	..()
-	blast = blasting
+	if(env.fuel_burnt() == 0)
+		return
 
-/datum/effect_system/smoke_spread/freezing/start()
-	if(blast)
-		for(var/turf/T in RANGE_TURFS(2, location))
-			Chilled(T)
-	..()
+	env.set_temperature(2)
+	env.set_nitrogen(env.nitrogen() + env.toxins())
+	env.set_toxins(0)
+
+	if(smoke.spread_range <= 0 || smoke.lifetime > 0)
+		return
+
+	// Spread the smoke, up to spread_range.
+	for(var/direction in list(NORTH, SOUTH, EAST, WEST))
+		var/turf/neighbor = get_step(T, direction)
+		if(isnull(neighbor))
+			continue
+		if(neighbor.density)
+			continue
+		var/has_nanofrost = FALSE
+		for(var/datum/effect_system/smoke_spread/freezing in neighbor)
+			has_nanofrost = TRUE
+			break
+		if(has_nanofrost)
+			continue
+		if(prob(50))
+			continue
+
+		var/obj/effect/particle_effect/smoke/freezing/new_smoke = new(neighbor)
+		new_smoke.spread_range = smoke.spread_range - 1
 
 /////////////////////////////////////////////
 // Sleep smoke

code/game/objects/effects/effect_system/effects_sparks.dm

@@ -26,20 +26,20 @@
 	playsound(src, "sparks", 100, TRUE, SHORT_RANGE_SOUND_EXTRARANGE)
 	var/turf/T = loc
 	if(isturf(T))
-		T.hotspot_expose(hotspottemp, 100)
+		T.hotspot_expose(hotspottemp, 1)
 	QDEL_IN(src, 20)
 
 /obj/effect/particle_effect/sparks/Destroy()
 	var/turf/T = loc
 	if(isturf(T))
-		T.hotspot_expose(hotspottemp,100)
+		T.hotspot_expose(hotspottemp,1)
 	return ..()
 
 /obj/effect/particle_effect/sparks/Move()
 	..()
 	var/turf/T = loc
 	if(isturf(T))
-		T.hotspot_expose(hotspottemp,100)
+		T.hotspot_expose(hotspottemp,1)
 
 /datum/effect_system/spark_spread
 	effect_type = /obj/effect/particle_effect/sparks