[MIRROR] various map related features (#11724)

Co-authored-by: Olive <49600480+zeskorion@users.noreply.github.com>
Co-authored-by: Cameron Lennox <killer65311@gmail.com>

code/game/objects/micro_structures.dm

@@ -9,6 +9,7 @@ GLOBAL_LIST_EMPTY(micro_tunnels)
 	anchored = TRUE
 	density = FALSE
 
+	var/random = FALSE //For random tummels- spits the micro out at a random location.
 	var/magic = FALSE	//For events and stuff, if true, this tunnel will show up in the list regardless of whether it's in valid range, of if you're in a tunnel with this var, all tunnels of the same faction will show up redardless of range
 	micro_target = TRUE
 
@@ -278,6 +279,9 @@ GLOBAL_LIST_EMPTY(micro_tunnels)
 /obj/structure/micro_tunnel/magic
 	magic = TRUE
 
+/obj/structure/micro_tunnel/random
+	random = TRUE
+
 /obj/Initialize(mapload)
 	. = ..()
 	if(micro_target)

code/game/objects/random/mapping.dm

@@ -26,8 +26,8 @@
 				/obj/effect/decal/cleanable/blood/oil/streak,
 				/obj/effect/decal/cleanable/bug_remains,
 				/obj/effect/decal/remains/mouse,
-				/obj/effect/decal/cleanable/vomit,
-				/obj/effect/decal/cleanable/blood/splatter,
+				/obj/effect/decal/cleanable/vomit/old,
+				/obj/effect/decal/cleanable/blood/old,
 				/obj/effect/decal/cleanable/ash,
 				/obj/effect/decal/cleanable/generic,
 				/obj/effect/decal/cleanable/flour,

code/game/objects/structures/dummystairs.dm

@@ -0,0 +1,17 @@
+/obj/structure/dummystairs
+	name = "stairs"
+	desc = "A short set of stairs"
+	icon = 'icons/obj/dummystairs.dmi'
+	icon_state = "stair"
+	anchored = TRUE
+	density = FALSE
+	layer = 2.5
+
+/obj/structure/dummystairs/bronzeledge
+	icon_state = "stair_bronze"
+
+/obj/structure/dummystairs/greyledge
+	icon_state = "stair_grey"
+
+/obj/structure/dummystairs/hazardledge
+	icon_state = "stair_hazard"

code/game/objects/structures/railing.dm

@@ -243,3 +243,14 @@
 			qdel(src)
 			return
 	return
+
+/obj/structure/railing/overhang/hazard
+	name = "hazardous ledge"
+	desc = "An overhang made of a steel. It's painted with vibrant hazard markings."
+	icon = 'icons/obj/railing.dmi'
+	icon_modifier = "hazard_"
+	icon_state = "hazard_railing0"
+
+/obj/structure/railing/overhang/hazard/nanite
+	icon_modifier = "inactive_"
+	icon_state = "inactive_railing0"