Smoke spells readability (#19387)

* read the smoke

* oops

* contra

* contra

* more tidying

* last one

* Update code/modules/projectiles/projectile/magic.dm

Co-authored-by: Farie82 <farie82@users.noreply.github.com>

Co-authored-by: Farie82 <farie82@users.noreply.github.com>

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

@@ -34,15 +34,10 @@ would spawn and follow the beaker, even if it is carried or thrown.
 	location = null
 	return ..()
 
-/datum/effect_system/proc/set_up(n = 3, c = 0, loca)
-	if(n > 10)
-		n = 10
-	number = n
-	cardinals = c
-	if(isturf(loca))
-		location = loca
-	else
-		location = get_turf(loca)
+/datum/effect_system/proc/set_up(amount = 3, only_cardinals = FALSE, source)
+	number = clamp(amount, amount, 10)
+	cardinals = only_cardinals
+	location = get_turf(source)
 
 /datum/effect_system/proc/attach(atom/atom)
 	holder = atom