[MIRROR] Replaced body zone magic strings with defines (#6004)

* Replaced body zone magic strings with defines

* merge conflicts

code/game/objects/items/cigs_lighters.dm

@@ -129,7 +129,7 @@ CIGARETTE PACKETS ARE IN FANCY.DM
 		reagents.add_reagent_list(list_reagents)
 	if(starts_lit)
 		light()
-	AddComponent(/datum/component/knockoff,90,list("mouth"),list(slot_wear_mask))//90% to knock off when wearing a mask
+	AddComponent(/datum/component/knockoff,90,list(BODY_ZONE_PRECISE_MOUTH),list(slot_wear_mask))//90% to knock off when wearing a mask
 
 /obj/item/clothing/mask/cigarette/Destroy()
 	STOP_PROCESSING(SSobj, src)
@@ -546,7 +546,7 @@ CIGARETTE PACKETS ARE IN FANCY.DM
 				if(prot || prob(75))
 					user.visible_message("After a few attempts, [user] manages to light [src].", "<span class='notice'>After a few attempts, you manage to light [src].</span>")
 				else
-					var/hitzone = user.held_index_to_dir(user.active_hand_index) == "r" ? "r_hand" : "l_hand"
+					var/hitzone = user.held_index_to_dir(user.active_hand_index) == "r" ? BODY_ZONE_PRECISE_R_HAND : BODY_ZONE_PRECISE_L_HAND
 					user.apply_damage(5, BURN, hitzone)
 					user.visible_message("<span class='warning'>After a few attempts, [user] manages to light [src] - however, [user.p_they()] burn their finger in the process.</span>", "<span class='warning'>You burn yourself while lighting the lighter!</span>")
 					GET_COMPONENT_FROM(mood, /datum/component/mood, user)
@@ -800,7 +800,7 @@ CIGARETTE PACKETS ARE IN FANCY.DM
 		vapetime = 0
 		if(prob(5))//small chance for the vape to break and deal damage if it's emagged
 			playsound(get_turf(src), 'sound/effects/pop_expl.ogg', 50, 0)
-			M.apply_damage(20, BURN, "head")
+			M.apply_damage(20, BURN, BODY_ZONE_HEAD)
 			M.Knockdown(300, 1, 0)
 			var/datum/effect_system/spark_spread/sp = new /datum/effect_system/spark_spread
 			sp.set_up(5, 1, src)