Acided Hand Railings no longer drop debris.

code/datums/effects/acid.dm

@@ -23,33 +23,36 @@
 	/// The maximum allowed duration per acid_level
 	var/static/list/tier_max_duarions = list(20, 40, 80)
 
-/datum/effects/acid/New(atom/atom, mob/from = null, last_dmg_source = null, zone = "chest")
-	..(atom, from, last_dmg_source, zone)
-	if(ishuman(atom))
-		var/mob/living/carbon/human/human = atom
-		human.update_effects()
-
-	if(isobj(atom))
-		var/obj/obj_target = atom
-		if(istype(obj_target, /obj/structure/barricade))
-			var/obj/structure/barricade/barricade_targer = obj_target
-			obj_dmg_multiplier = barricade_targer.burn_multiplier
-		obj_target.update_icon()
+/datum/effects/acid/New(atom/target_atom, mob/from = null, last_dmg_source = null, zone = "chest")
+	..(target_atom, from, last_dmg_source, zone)
+	if(ishuman(target_atom))
+		var/mob/living/carbon/human/target_human = target_atom
+		target_human.update_effects()
+
+	if(isobj(target_atom))
+		var/obj/target_object = target_atom
+		if(istype(target_object, /obj/structure/barricade))
+			var/obj/structure/barricade/target_barricade = target_object
+			obj_dmg_multiplier = target_barricade.burn_multiplier
+		if(istype(target_object, /obj/structure/barricade/handrail))
+			var/obj/structure/barricade/handrail/target_handrail = target_object
+			target_handrail.on_acid = TRUE
+		target_object.update_icon()
 
 	handle_weather()
 
 	RegisterSignal(SSdcs, COMSIG_GLOB_WEATHER_CHANGE, PROC_REF(handle_weather))
 
-/datum/effects/acid/validate_atom(atom/atom)
-	if(istype(atom, /obj/structure/barricade))
+/datum/effects/acid/validate_atom(atom/target_atom)
+	if(istype(target_atom, /obj/structure/barricade))
 		return TRUE
 
-	if(isobj(atom))
+	if(isobj(target_atom))
 		return FALSE
 
-	if(ishuman(atom))
-		var/mob/living/carbon/human/human = atom
-		if(human.status_flags & XENO_HOST && HAS_TRAIT(human, TRAIT_NESTED) || human.stat == DEAD || HAS_TRAIT(human, TRAIT_HAULED))
+	if(ishuman(target_atom))
+		var/mob/living/carbon/human/target_human = target_atom
+		if(target_human.status_flags & XENO_HOST && HAS_TRAIT(target_human, TRAIT_NESTED) || target_human.stat == DEAD || HAS_TRAIT(target_human, TRAIT_HAULED))
 			return FALSE
 
 	return ..()
@@ -82,14 +85,12 @@
 		LAZYREMOVE(affected_atom.effects_list, src)
 
 	if(ishuman(affected_atom))
-		var/mob/living/carbon/human/human = affected_atom
-		human.update_effects()
-		if(acid_level >= 3)
-			to_chat(human, SPAN_WARNING("Your armor returns to normal."))
+		var/mob/living/carbon/human/target_human = affected_atom
+		target_human.update_effects()
 
 	if(isobj(affected_atom))
-		var/obj/obj_target = affected_atom
-		obj_target.update_icon()
+		var/obj/target_object = affected_atom
+		target_object.update_icon()
 	return ..()
 
 /**

code/game/objects/structures/barricade/barricade.dm

@@ -44,6 +44,8 @@
 	var/metallic = TRUE
 	/// Lower limit of damage beyond which the barricade cannot be fixed by welder. Compared to damage_state. If null it can be repaired at any damage_state.
 	var/welder_lower_damage_limit = null
+	/// Check if cade is on acid, if yes, do not leave debris after melting.
+	var/on_acid = FALSE
 
 /obj/structure/barricade/Initialize(mapload, mob/user)
 	. = ..()
@@ -327,7 +329,7 @@
 			if(stack_amt)
 				new stack_type(loc, stack_amt)
 	else
-		if(destroyed_stack_amount)
+		if(!on_acid && destroyed_stack_amount)
 			new stack_type(loc, destroyed_stack_amount)
 	return ..()
 
@@ -371,7 +373,7 @@
 	update_icon()
 
 /obj/structure/barricade/acid_spray_act()
-	take_damage(25 * burn_multiplier)
+	take_damage((25 * burn_multiplier), TRUE)
 	visible_message(SPAN_WARNING("[src] is hit by the acid spray!"))
 	new /datum/effects/acid(src, null, null)
 
@@ -381,15 +383,15 @@
 /obj/structure/barricade/proc/hit_barricade(obj/item/item)
 	take_damage(item.force * item.demolition_mod * 0.5 * brute_multiplier)
 
-/obj/structure/barricade/proc/take_damage(damage)
+/obj/structure/barricade/proc/take_damage(damage, acided = FALSE)
 	for(var/obj/structure/barricade/barricade in get_step(src,dir)) //discourage double-stacking barricades by removing health from opposing barricade
 		if(barricade.dir == reverse_direction(dir))
 			barricade.update_health(damage)
 
 	update_health(damage)
 
 /obj/structure/barricade/proc/take_acid_damage(damage)
-	take_damage(damage * burn_multiplier)
+	take_damage((damage * burn_multiplier), TRUE)
 
 /obj/structure/barricade/update_health(damage, nomessage)
 	health -= damage

code/game/objects/structures/barricade/handrail.dm

@@ -225,6 +225,11 @@
 					return
 	. = ..()
 
+/obj/structure/barricade/handrail/take_damage(acided = FALSE)
+	if(acided)
+		on_acid = TRUE
+	return ..()
+
 /obj/structure/barricade/handrail/no_vault
 	autoclimb = FALSE