Some Processing improvements (#80693)

## About The Pull Request
Got the idea from #80682. A lot of parent procs don't do anything, some
are just formatted in a bad way, and others early return and do no ops,
it's bad in general but this should give us a head start.

Some good overhead saved here

code/_onclick/hud/alert.dm

@@ -877,9 +877,6 @@ or shoot a gun to move around via Newton's 3rd Law of Motion."
 		time_left_overlay.maptext = MAPTEXT("<span style='color: [(timeleft <= 10 SECONDS) ? "red" : "white"]'><b>[CEILING(timeleft / (1 SECONDS), 1)]</b></span>")
 		time_left_overlay.transform = time_left_overlay.transform.Translate(4, 19)
 		add_overlay(time_left_overlay)
-	if(isnull(poll))
-		return
-	..()
 
 /atom/movable/screen/alert/poll_alert/Click(location, control, params)
 	. = ..()

code/datums/proximity_monitor/fields/projectile_dampener.dm

@@ -35,7 +35,6 @@
 	for(var/obj/projectile/projectile in tracked)
 		if(!(projectile in ranged) || !projectile.loc)
 			release_projectile(projectile)
-	..()
 
 /datum/proximity_monitor/advanced/projectile_dampener/setup_edge_turf(turf/target)
 	. = ..()

code/game/machinery/camera/motion.dm

@@ -8,8 +8,7 @@
 /obj/machinery/camera/process()
 	// motion camera event loop
 	if(!isMotion())
-		. = PROCESS_KILL
-		return
+		return PROCESS_KILL
 	if(machine_stat & EMPED)
 		return
 	if (detectTime > 0)

code/game/machinery/doors/airlock.dm

@@ -2025,7 +2025,6 @@
 		if(prob(50))
 			radiate()
 		last_event = world.time
-	..()
 
 /obj/machinery/door/airlock/uranium/proc/radiate()
 	radiation_pulse(

code/game/machinery/droneDispenser.dm

@@ -152,7 +152,6 @@
 		. += span_warning("[recharging_text]")
 
 /obj/machinery/drone_dispenser/process()
-	..()
 	if((machine_stat & (NOPOWER|BROKEN)) || !anchored)
 		return
 

code/game/machinery/sleepers.dm

@@ -178,7 +178,6 @@
 	. += span_notice("Alt-click [src] to [state_open ? "close" : "open"] it.")
 
 /obj/machinery/sleeper/process()
-	..()
 	use_power(idle_power_usage)
 
 /obj/machinery/sleeper/nap_violation(mob/violator)

code/game/objects/items/devices/scanners/t_scanner.dm

@@ -35,8 +35,7 @@
 
 /obj/item/t_scanner/process()
 	if(!on)
-		STOP_PROCESSING(SSobj, src)
-		return null
+		return PROCESS_KILL
 	scan()
 
 /obj/item/t_scanner/proc/scan()

code/game/objects/items/dualsaber.dm

@@ -172,7 +172,7 @@
 			set_light_color(pick(COLOR_SOFT_RED, LIGHT_COLOR_GREEN, LIGHT_COLOR_LIGHT_CYAN, LIGHT_COLOR_LAVENDER))
 		open_flame()
 	else
-		STOP_PROCESSING(SSobj, src)
+		return PROCESS_KILL
 
 /obj/item/dualsaber/IsReflect()
 	if(HAS_TRAIT(src, TRAIT_WIELDED) && prob(block_chance))

code/game/objects/items/flamethrower.dm

@@ -52,8 +52,7 @@
 
 /obj/item/flamethrower/process()
 	if(!lit || !igniter)
-		STOP_PROCESSING(SSobj, src)
-		return null
+		return PROCESS_KILL
 	var/turf/location = loc
 	if(ismob(location))
 		var/mob/M = location

code/game/objects/items/food/sweets.dm

@@ -232,7 +232,6 @@
 	metabolization_amount = REAGENTS_METABOLISM
 
 /obj/item/food/bubblegum/bubblegum/process()
-	. = ..()
 	if(iscarbon(loc))
 		hallucinate(loc)
 

code/modules/antagonists/pirate/pirate_shuttle_equipment.dm

@@ -18,18 +18,17 @@
 	update_appearance()
 
 /obj/machinery/shuttle_scrambler/process()
-	if(active)
-		if(is_station_level(z))
-			var/datum/bank_account/account = SSeconomy.get_dep_account(ACCOUNT_CAR)
-			if(account)
-				var/siphoned = min(account.account_balance,siphon_per_tick)
-				account.adjust_money(-siphoned)
-				credits_stored += siphoned
-			interrupt_research()
-		else
-			return
-	else
-		STOP_PROCESSING(SSobj,src)
+	if(!active)
+		return PROCESS_KILL
+
+	if(!is_station_level(z))
+		return
+
+	var/datum/bank_account/account = SSeconomy.get_dep_account(ACCOUNT_CAR)
+	var/siphoned = min(account.account_balance,siphon_per_tick)
+	account.adjust_money(-siphoned)
+	credits_stored += siphoned
+	interrupt_research()
 
 ///Turns on the siphoning, and its various side effects
 /obj/machinery/shuttle_scrambler/proc/toggle_on(mob/user)

code/modules/antagonists/wizard/equipment/artefact.dm

@@ -60,6 +60,7 @@
 	spawn_amt_left--
 	if(spawn_amt_left <= 0)
 		qdel(src)
+		return PROCESS_KILL
 
 /obj/effect/rend/attackby(obj/item/I, mob/user, params)
 	if(istype(I, /obj/item/nullrod))

code/modules/assembly/health.dm

@@ -46,25 +46,30 @@
 		to_chat(user, span_notice("You toggle [src] to \"detect critical state\" mode."))
 
 /obj/item/assembly/health/process()
+	//not ready yet
 	if(!scanning || !secured)
 		return
 
-	var/atom/A = src
+	//look for a mob in either our location or in the connected holder
+	var/atom/object = src
 	if(connected?.holder)
-		A = connected.holder
-	for(A, A && !ismob(A), A=A.loc);
-	// like get_turf(), but for mobs.
-	var/mob/living/M = A
+		object = connected.holder
+	while(!ismob(object))
+		object = object.loc
+		if(isnull(object)) //we went too far
+			return
 
-	if(M)
-		health_scan = M.health
-		if(health_scan <= alarm_health)
-			pulse()
-			audible_message("<span class='infoplain'>[icon2html(src, hearers(src))] *beep* *beep* *beep*</span>")
-			playsound(src, 'sound/machines/triple_beep.ogg', ASSEMBLY_BEEP_VOLUME, TRUE)
-			toggle_scan()
+	//only do the pulse if we are within alarm thresholds
+	var/mob/living/target_mob = object
+	health_scan = target_mob.health
+	if(health_scan > alarm_health)
 		return
-	return
+
+	//do the pulse & the scan
+	pulse()
+	audible_message("<span class='infoplain'>[icon2html(src, hearers(src))] *beep* *beep* *beep*</span>")
+	playsound(src, 'sound/machines/triple_beep.ogg', ASSEMBLY_BEEP_VOLUME, TRUE)
+	toggle_scan()
 
 /obj/item/assembly/health/proc/toggle_scan()
 	if(!secured)

code/modules/mining/lavaland/megafauna_loot.dm

@@ -285,7 +285,6 @@
 	AddElement(/datum/element/gags_recolorable)
 
 /obj/item/clothing/suit/hooded/hostile_environment/process(seconds_per_tick)
-	. = ..()
 	var/mob/living/carbon/wearer = loc
 	if(istype(wearer) && SPT_PROB(1, seconds_per_tick)) //cursed by bubblegum
 		if(prob(7.5))

code/modules/modular_computers/file_system/programs/radar.dm

@@ -173,8 +173,8 @@
 //We use SSfastprocess for the program icon state because it runs faster than process_tick() does.
 /datum/computer_file/program/radar/process()
 	if(computer.active_program != src)
-		STOP_PROCESSING(SSfastprocess, src) //We're not the active program, it's time to stop.
-		return
+		//We're not the active program, it's time to stop.
+		return PROCESS_KILL
 	if(!selected)
 		return
 

code/modules/power/generator.dm

@@ -96,7 +96,6 @@
 	add_avail(power_output)
 	lastgenlev = power_output
 	lastgen -= power_output
-	..()
 
 /obj/machinery/power/generator/proc/get_menu(include_link = TRUE)
 	var/t = ""

code/modules/power/rtg.dm

@@ -22,7 +22,6 @@
 	connect_to_network()
 
 /obj/machinery/power/rtg/process()
-	..()
 	add_avail(power_gen)
 
 /obj/machinery/power/rtg/RefreshParts()

code/modules/reagents/chemistry/machinery/smoke_machine.dm

@@ -77,7 +77,6 @@
 
 
 /obj/machinery/smoke_machine/process()
-	..()
 	if(reagents.total_volume == 0)
 		on = FALSE
 		update_appearance()

code/modules/research/xenobiology/crossbreeding/stabilized.dm

@@ -53,7 +53,7 @@ Stabilized extracts:
 	if (holder.has_status_effect(effectpath))
 		return
 	holder.apply_status_effect(effectpath, src)
-	STOP_PROCESSING(SSobj,src)
+	return PROCESS_KILL
 
 //Colors and subtypes:
 /obj/item/slimecross/stabilized/grey

code/modules/station_goals/meteor_shield.dm

@@ -89,7 +89,7 @@
 /obj/machinery/satellite/meteor_shield/process()
 	if(obj_flags & EMAGGED)
 		//kills the processing because emagged meteor shields no longer stop meteors in any way
-		return ..()
+		return PROCESS_KILL
 	if(!active)
 		return
 	for(var/obj/effect/meteor/meteor_to_destroy in GLOB.meteor_list)