The Powerlining (#2514)

This PR adds power lines that can be walked on to cross gaps. They do not transmit power and are indestructible to avoid cutting off important areas.

Sprites by Conundrum.

mojave/structures/powerlines.dm

@@ -0,0 +1,116 @@
+/obj/structure/ms13/powerlines
+	name = "overhead power line"
+	desc = "A suspended power line made of three thick parallel wires."
+	icon = 'mojave/icons/structure/powerlines.dmi'
+	icon_state = "platrailings_full"
+	density = FALSE
+	anchored = TRUE
+	armor = list(MELEE = 60, BULLET = 0, LASER = 0, ENERGY = 0, BOMB = 0, BIO = 0, FIRE = 80, ACID = 50)
+	max_integrity = 120
+	layer = LATTICE_LAYER
+	plane = FLOOR_PLANE
+	obj_flags = CAN_BE_HIT | BLOCK_Z_OUT_DOWN | BLOCK_Z_IN_UP
+	resistance_flags = INDESTRUCTIBLE | LAVA_PROOF | FIRE_PROOF | UNACIDABLE | ACID_PROOF
+	var/number_of_mats = 3
+	var/build_material = /obj/item/stack/sheet/ms13/scrap_copper
+
+/obj/structure/ms13/powerlines/deconstruct(disassembled = TRUE)
+	if(!(flags_1 & NODECONSTRUCT_1))
+		new build_material(get_turf(src), number_of_mats)
+	qdel(src)
+
+// Power line mounts
+
+/obj/structure/ms13/powerlines/mount/navy
+	icon_state = "plinemount_navy"
+
+/obj/structure/ms13/powerlines/mount/red
+	icon_state = "plinemount_red"
+
+/obj/structure/ms13/powerlines/mount/green
+	icon_state = "plinemount_green"
+
+/obj/structure/ms13/powerlines/mount/blue
+	icon_state = "plinemount_blue"
+
+// Power line cords
+
+/obj/structure/ms13/powerlines/cord/Initialize(mapload)
+	. = ..()
+	// Random chance to have a visually-intact power line
+	if(prob(40))
+		icon_state = "plinecord_[pcolor]"
+	else
+		/// pdir controls which one of the three wires is damaged
+		var/pdir = pick(SOUTH, WEST, EAST)
+		if(dir == WEST || dir == EAST)
+			icon_state = "plinedam-hor_[pcolor]"
+			dir = pdir
+		else
+			icon_state = "plinedam-vert_[pcolor]"
+			dir = pdir
+
+/obj/structure/ms13/powerlines/cord
+	icon_state = ""
+	var/pcolor
+
+/obj/structure/ms13/powerlines/cord/navy
+	icon_state = "plinecord_navy"
+	pcolor = "navy"
+
+/obj/structure/ms13/powerlines/cord/red
+	icon_state = "plinecord_red"
+	pcolor = "red"
+
+/obj/structure/ms13/powerlines/cord/green
+	icon_state = "plinecord_green"
+	pcolor = "green"
+
+/obj/structure/ms13/powerlines/cord/blue
+	icon_state = "plinecord_blue"
+	pcolor = "blue"
+
+// Power line junctions
+
+/obj/structure/ms13/powerlines/junction/Initialize(mapload)
+
+	// Adjacent connections will be spawned as overlays
+	icon_state = "plinejunction"
+
+	// Detecting adjacent power lines
+	for(var/direction in GLOB.cardinals)
+		var/turf/T = get_step(src, direction)
+		var/adjacent = locate(/obj/structure/ms13/powerlines) in T
+		if(adjacent)
+			jdir |= direction
+	// Update both icon and overlays
+	update_icon()
+
+/obj/structure/ms13/powerlines/junction/update_overlays()
+	. = ..()
+
+	// Adding connection to adjacent power lines
+	for(var/direction in GLOB.cardinals)
+		if(jdir & direction)
+			. += image(icon, "plinecord-junction_[pcolor]", dir=REVERSE_DIR(direction))
+
+/obj/structure/ms13/powerlines/junction
+	icon_state = ""
+	var/pcolor
+	var/jdir
+
+/obj/structure/ms13/powerlines/junction/navy
+	icon_state = "plinejunction_navy"
+	pcolor = "navy"
+
+/obj/structure/ms13/powerlines/junction/red
+	icon_state = "plinejunction_red"
+	pcolor = "red"
+
+/obj/structure/ms13/powerlines/junction/green
+	icon_state = "plinejunction_green"
+	pcolor = "green"
+
+/obj/structure/ms13/powerlines/junction/blue
+	icon_state = "plinejunction_blue"
+	pcolor = "blue"

tgstation.dme

@@ -4767,6 +4767,7 @@
 #include "mojave\structures\pipes.dm"
 #include "mojave\structures\platform_railings.dm"
 #include "mojave\structures\plumbing_decorations.dm"
+#include "mojave\structures\powerlines.dm"
 #include "mojave\structures\rugs.dm"
 #include "mojave\structures\ruins.dm"
 #include "mojave\structures\shutters.dm"