Refactors Spark Spread Activation

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

@@ -8,8 +8,9 @@ would spawn and follow the beaker, even if it is carried or thrown.
 /obj/effect/particle_effect
 	name = "particle effect"
 	mouse_opacity = MOUSE_OPACITY_TRANSPARENT
-	unacidable = 1//So effects are not targeted by alien acid.
+	unacidable = TRUE //So effects are not targeted by alien acid.
 	pass_flags = PASSTABLE | PASSGRILLE
+	anchored = TRUE
 
 /obj/effect/particle_effect/New()
 	..()
@@ -28,6 +29,7 @@ would spawn and follow the beaker, even if it is carried or thrown.
 	var/atom/holder
 	var/effect_type
 	var/total_effects = 0
+	var/autocleanup = FALSE //will delete itself after use
 
 /datum/effect_system/Destroy()
 	holder = null
@@ -71,3 +73,5 @@ would spawn and follow the beaker, even if it is carried or thrown.
 
 /datum/effect_system/proc/decrement_total_effect()
 	total_effects--
+	if(autocleanup && total_effects <= 0)
+		qdel(src)

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

@@ -155,9 +155,7 @@
 
 /datum/effect_system/reagents_explosion/start()
 	if(amount <= 2)
-		var/datum/effect_system/spark_spread/s = new /datum/effect_system/spark_spread
-		s.set_up(2, 1, location)
-		s.start()
+		do_sparks(2, 1, location)
 
 		for(var/mob/M in viewers(5, location))
 			to_chat(M, "<span class='warning'>The solution violently explodes.</span>")

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

@@ -5,15 +5,26 @@
 // will always spawn at the items location.
 /////////////////////////////////////////////
 
+/proc/do_sparks(n, c, source)
+	// n - number of sparks
+	// c - cardinals, bool, do the sparks only move in cardinal directions?
+	// source - source of the sparks.
+
+	var/datum/effect_system/spark_spread/sparks = new
+	sparks.set_up(n, c, source)
+	sparks.autocleanup = TRUE
+	sparks.start()
+
 /obj/effect/particle_effect/sparks
 	name = "sparks"
 	desc = "it's a spark what do you need to know?"
 	icon_state = "sparks"
-	anchored = 1
+	anchored = TRUE
 	var/hotspottemp = 1000
 
 /obj/effect/particle_effect/sparks/New()
 	..()
+	flick("sparks", src) // replay the animation
 	playsound(loc, "sparks", 100, 1)
 	var/turf/T = loc
 	if(isturf(T))