stop the pills (#18703)

* RedPills Processing

Now you have to use START_PROCESSING(SSname, thing) (and STOP_PROCESSING)

* Fixes a minor bug.

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

@@ -29,16 +29,16 @@
 /obj/effect/particle_effect/foam/New(loc)
 	..(loc)
 	create_reagents(1000) //limited by the size of the reagent holder anyway.
-	SSfastprocess.processing |= src
+	START_PROCESSING(SSfastprocess, src)
 	playsound(src, 'sound/effects/bubbles2.ogg', 80, 1, -3)
 
 /obj/effect/particle_effect/foam/Destroy()
-	SSfastprocess.processing.Remove(src)
+	STOP_PROCESSING(SSfastprocess, src)
 	return ..()
 
 
 /obj/effect/particle_effect/foam/proc/kill_foam()
-	SSfastprocess.processing.Remove(src)
+	STOP_PROCESSING(SSfastprocess, src)
 	if(metal)
 		var/obj/structure/foamedmetal/M = new(src.loc)
 		M.metal = metal

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

@@ -30,15 +30,15 @@
 /obj/effect/particle_effect/smoke/New()
 	..()
 	create_reagents(500)
-	SSobj.processing |= src
+	START_PROCESSING(SSobj, src)
 
 
 /obj/effect/particle_effect/smoke/Destroy()
-	SSobj.processing.Remove(src)
+	STOP_PROCESSING(SSobj, src)
 	return ..()
 
 /obj/effect/particle_effect/smoke/proc/kill_smoke()
-	SSobj.processing.Remove(src)
+	STOP_PROCESSING(SSobj, src)
 	spawn(0)
 		fade_out()
 	spawn(10)

code/game/objects/effects/forcefields.dm

@@ -27,10 +27,10 @@
 /obj/effect/forcefield/mime/New()
 	..()
 	last_process = world.time
-	SSobj.processing |= src
+	START_PROCESSING(SSobj, src)
 
 /obj/effect/forcefield/mime/process()
 	timeleft -= (world.time - last_process)
 	if(timeleft <= 0)
-		SSobj.processing.Remove(src)
+		STOP_PROCESSING(SSobj, src)
 		qdel(src)

code/game/objects/effects/spiders.dm

@@ -78,7 +78,7 @@
 /obj/effect/spider/eggcluster/New()
 	pixel_x = rand(3,-3)
 	pixel_y = rand(3,-3)
-	SSobj.processing |= src
+	START_PROCESSING(SSobj, src)
 
 /obj/effect/spider/eggcluster/process()
 	amount_grown += rand(0,2)
@@ -112,7 +112,7 @@
 /obj/effect/spider/spiderling/New()
 	pixel_x = rand(6,-6)
 	pixel_y = rand(6,-6)
-	SSobj.processing |= src
+	START_PROCESSING(SSobj, src)
 
 /obj/effect/spider/spiderling/Bump(atom/user)
 	if(istype(user, /obj/structure/table))