/turf/simulated/wall/indestructible
	name = "wall"
	desc = "Effectively impervious to conventional methods of destruction."
	explosion_block = 50

/turf/simulated/wall/indestructible/dismantle_wall(devastated = 0, explode = 0)
	return

/turf/simulated/wall/indestructible/take_damage(dam)
	return

/turf/simulated/wall/indestructible/welder_act()
	return

/turf/simulated/wall/indestructible/thermitemelt(mob/user, speed)
	return

/turf/simulated/wall/indestructible/ex_act(severity)
	SEND_SIGNAL(src, COMSIG_ATOM_EX_ACT, severity)
	return

/turf/simulated/wall/indestructible/blob_act(obj/structure/blob/B)
	return

/turf/simulated/wall/indestructible/singularity_act()
	return

/turf/simulated/wall/indestructible/singularity_pull(S, current_size)
	return

/turf/simulated/wall/indestructible/narsie_act()
	return

/turf/simulated/wall/indestructible/burn_down()
	return

/turf/simulated/wall/indestructible/attackby(obj/item/I, mob/user, params)
	return

/turf/simulated/wall/indestructible/attack_hand(mob/user)
	return

/turf/simulated/wall/indestructible/attack_hulk(mob/user, does_attack_animation = FALSE)
	return

/turf/simulated/wall/indestructible/attack_animal(mob/living/simple_animal/M)
	return

/turf/simulated/wall/indestructible/mech_melee_attack(obj/mecha/M)
	return

/turf/simulated/wall/indestructible/necropolis
	name = "necropolis wall"
	desc = "A seemingly impenetrable wall."
	icon = 'icons/turf/walls.dmi'
	icon_state = "necro"
	base_icon_state = "necro"
	baseturf = /turf/simulated/wall/indestructible/necropolis
	smoothing_flags = null
	smoothing_groups = null
	canSmoothWith = null

/turf/simulated/wall/indestructible/boss
	name = "necropolis wall"
	desc = "A thick, seemingly indestructible stone wall."
	icon = 'icons/turf/walls/boss_wall.dmi'
	icon_state = "boss_wall-0"
	base_icon_state = "boss_wall"
	smoothing_flags = SMOOTH_BITMASK
	smoothing_groups = list(SMOOTH_GROUP_WALLS, SMOOTH_GROUP_BOSS_WALLS)
	canSmoothWith = list(SMOOTH_GROUP_BOSS_WALLS)
	baseturf = /turf/simulated/floor/plating/asteroid/basalt

/turf/simulated/wall/indestructible/boss/see_through
	opacity = FALSE

/turf/simulated/wall/indestructible/hierophant
	name = "wall"
	desc = "A wall made out of a strange metal. The squares on it pulse in a predictable pattern."
	icon = 'icons/turf/walls/hierophant_wall.dmi'
	icon_state = "wall"
	smoothing_flags = SMOOTH_CORNERS
	baseturf = /turf/simulated/floor/indestructible/hierophant/two

/turf/simulated/wall/indestructible/hierophant/Initialize(mapload)
	. = ..()
	GLOB.hierophant_walls += src

/turf/simulated/wall/indestructible/hierophant/BeforeChange()
	GLOB.hierophant_walls -= src
	return ..()


/turf/simulated/wall/indestructible/hierophant/proc/collapse()
	if(prob(15))
		visible_message("<span class='warning'>[src] starts to rumble and groan as the lights fade on it, and it begins to collapse to rubble!</span>",\
		"<span class='warning'>You hear metal groaning and tearing!</span>")
		ChangeTurf(/turf/simulated/floor/indestructible/hierophant/two)
		return
	addtimer(CALLBACK(src, PROC_REF(collapse)), 10 SECONDS)

/turf/simulated/wall/indestructible/sandstone
	icon = 'icons/turf/walls/sandstone_wall.dmi'
	icon_state = "sandstone_wall-0"
	base_icon_state = "sandstone_wall"
	smoothing_flags = SMOOTH_BITMASK


GLOBAL_DATUM(title_splash, /turf/simulated/wall/indestructible/splashscreen)

/turf/simulated/wall/indestructible/splashscreen
	name = "Space Station 13"
	icon = 'config/title_screens/images/blank.png'
	icon_state = ""
	layer = FLY_LAYER
	flags = NO_SCREENTIPS
	// Pixel shifts below are needed to centrally position the black placeholder icon within the start area at compile-time. This is overridden when a "real" lobby art image is chosen by SStitlescreen
	pixel_x = -288
	pixel_y = -224

// This needs to load immediately. I am sad I cant Initialize() this.
/turf/simulated/wall/indestructible/splashscreen/New(loc)
	..()
	GLOB.title_splash = src

// GC cleanup because some silly bugger will delete this
/turf/simulated/wall/indestructible/splashscreen/Destroy()
	GLOB.title_splash = null
	return ..()

/turf/simulated/wall/indestructible/uranium
	icon = 'icons/turf/walls/uranium_wall.dmi'
	icon_state = "uranium_wall-0"
	base_icon_state = "uranium_wall"
	smoothing_flags = SMOOTH_BITMASK
	canSmoothWith = list(SMOOTH_GROUP_WALLS, SMOOTH_GROUP_URANIUM_WALLS)

/turf/simulated/wall/indestructible/wood
	icon = 'icons/turf/walls/wood_wall.dmi'
	icon_state = "wood_wall-0"
	base_icon_state = "wood_wall"
	smoothing_flags = SMOOTH_BITMASK
	smoothing_groups = list(SMOOTH_GROUP_SIMULATED_TURFS, SMOOTH_GROUP_WALLS, SMOOTH_GROUP_WOOD_WALLS)
	canSmoothWith = list(SMOOTH_GROUP_WOOD_WALLS)

/turf/simulated/wall/indestructible/alien
	name = "alien wall"
	desc = "A wall with alien alloy plating."
	icon = 'icons/turf/walls/abductor_wall.dmi'
	icon_state = "abductor_wall-0"
	base_icon_state = "abductor_wall"
	smoothing_flags = SMOOTH_BITMASK | SMOOTH_DIAGONAL_CORNERS
	smoothing_groups = list(SMOOTH_GROUP_SIMULATED_TURFS, SMOOTH_GROUP_WALLS, SMOOTH_GROUP_ABDUCTOR_WALLS)
	canSmoothWith = list(SMOOTH_GROUP_ABDUCTOR_WALLS)

/turf/simulated/wall/indestructible/abductor
	icon = 'icons/turf/walls/abductor_wall.dmi'
	icon_state = "abductor_wall-0"
	base_icon_state = "abductor_wall"
	smoothing_flags = SMOOTH_BITMASK | SMOOTH_DIAGONAL_CORNERS
	smoothing_groups = list(SMOOTH_GROUP_SIMULATED_TURFS, SMOOTH_GROUP_WALLS, SMOOTH_GROUP_ABDUCTOR_WALLS)
	canSmoothWith = list(SMOOTH_GROUP_ABDUCTOR_WALLS)

/turf/simulated/wall/indestructible/fakedoor
	name = "CentCom Access"
	icon = 'icons/obj/doors/airlocks/centcom/centcom.dmi'
	icon_state = "fake_door"
	smoothing_flags = null
	smoothing_groups = null
	canSmoothWith = null

/turf/simulated/wall/indestructible/fakeglass
	name = "window"
	icon = 'icons/obj/smooth_structures/windows/reinforced_window.dmi'
	icon_state = "fake_window"
	base_icon_state = "reinforced_window"
	opacity = FALSE
	smoothing_flags = SMOOTH_BITMASK
	smoothing_groups = list(SMOOTH_GROUP_WINDOW_FULLTILE, SMOOTH_GROUP_REGULAR_WALLS, SMOOTH_GROUP_REINFORCED_WALLS) //they are not walls but this lets walls smooth with them
	canSmoothWith = list(SMOOTH_GROUP_WINDOW_FULLTILE, SMOOTH_GROUP_WALLS)
	/// Used to define what file the edging sprite is contained within
	var/edge_overlay_file = 'icons/obj/smooth_structures/windows/reinforced_window_edges.dmi'
	/// Tracks the edging appearence sprite
	var/mutable_appearance/edge_overlay

/turf/simulated/wall/indestructible/fakeglass/Initialize(mapload)
	. = ..()
	icon_state = null
	underlays += mutable_appearance('icons/obj/structures.dmi', "grille") //add a grille underlay
	underlays += mutable_appearance('icons/turf/floors.dmi', "plating") //add the plating underlay, below the grille

/turf/simulated/wall/indestructible/fakeglass/smooth_icon()
	..()
	update_icon(UPDATE_OVERLAYS)

/turf/simulated/wall/indestructible/fakeglass/update_icon_state()
	. = ..()
	if(smoothing_flags & (SMOOTH_CORNERS|SMOOTH_BITMASK))
		QUEUE_SMOOTH(src)

/turf/simulated/wall/indestructible/fakeglass/update_overlays()
	if(!edge_overlay_file)
		return

	edge_overlay = mutable_appearance(edge_overlay_file, "[smoothing_junction]", layer + 0.1, appearance_flags = RESET_COLOR)
	return list(edge_overlay)

/turf/simulated/wall/indestructible/fakeglass/brass
	icon = 'icons/obj/smooth_structures/windows/clockwork_window.dmi'
	icon_state = "clockwork_window-0"
	base_icon_state = "clockwork_window"
	smoothing_groups = list(SMOOTH_GROUP_WINDOW_FULLTILE_BRASS)
	canSmoothWith = list(SMOOTH_GROUP_WINDOW_FULLTILE_BRASS)
	edge_overlay_file = null

/turf/simulated/wall/indestructible/opsglass
	name = "window"
	icon = 'icons/obj/smooth_structures/windows/plastitanium_window.dmi'
	icon_state = "plastitanium_window-0"
	base_icon_state = "plastitanium_window"
	opacity = FALSE
	smoothing_flags = SMOOTH_BITMASK
	smoothing_groups = list(SMOOTH_GROUP_SHUTTLE_PARTS, SMOOTH_GROUP_WINDOW_FULLTILE_PLASTITANIUM, SMOOTH_GROUP_PLASTITANIUM_WALLS)
	canSmoothWith = list(SMOOTH_GROUP_WINDOW_FULLTILE_PLASTITANIUM, SMOOTH_GROUP_SYNDICATE_WALLS, SMOOTH_GROUP_PLASTITANIUM_WALLS)

/turf/simulated/wall/indestructible/opsglass/Initialize(mapload)
	. = ..()
	icon_state = null
	underlays += mutable_appearance('icons/obj/structures.dmi', "grille")
	underlays += mutable_appearance('icons/turf/floors.dmi', "plating")

/turf/simulated/wall/indestructible/opsglass/limited_smooth
	smoothing_groups = list(SMOOTH_GROUP_WINDOW_FULLTILE_PLASTITANIUM)
	canSmoothWith = list(SMOOTH_GROUP_WINDOW_FULLTILE_PLASTITANIUM)

/turf/simulated/wall/indestructible/rock
	name = "dense rock"
	desc = "An extremely densely-packed rock, most mining tools or explosives would never get through this."
	icon = 'icons/turf/walls/smoothrocks.dmi'
	icon_state = "smoothrocks-0"
	base_icon_state = "smoothrocks"
	smoothing_flags = SMOOTH_BITMASK | SMOOTH_BORDER
	smoothing_groups = list(SMOOTH_GROUP_SIMULATED_TURFS, SMOOTH_GROUP_MINERAL_WALLS)
	canSmoothWith = list(SMOOTH_GROUP_MINERAL_WALLS)
	color = COLOR_ROCK

/turf/simulated/wall/indestructible/rock/snow
	name = "mountainside"
	desc = "An extremely densely-packed rock, sheeted over with centuries worth of ice and snow."
	icon = 'icons/turf/walls.dmi'
	icon_state = "snowrock"
	smoothing_flags = null
	smoothing_groups = null
	canSmoothWith = null

/turf/simulated/wall/indestructible/riveted
	icon = 'icons/turf/walls/reinforced_wall.dmi'
	icon_state = "reinforced_wall-0"
	base_icon_state = "reinforced_wall"
	smoothing_flags = SMOOTH_BITMASK
	smoothing_groups = list(SMOOTH_GROUP_SIMULATED_TURFS, SMOOTH_GROUP_WALLS, SMOOTH_GROUP_REINFORCED_WALLS)
	canSmoothWith = list(SMOOTH_GROUP_WALLS, SMOOTH_GROUP_REGULAR_WALLS, SMOOTH_GROUP_REINFORCED_WALLS)

/turf/simulated/wall/indestructible/syndicate
	icon = 'icons/turf/walls/plastitanium_wall.dmi'
	icon_state = "plastitanium_wall-0"
	base_icon_state = "plastitanium_wall"
	smoothing_flags = SMOOTH_BITMASK | SMOOTH_DIAGONAL_CORNERS
	smoothing_groups = list(SMOOTH_GROUP_SIMULATED_TURFS, SMOOTH_GROUP_WALLS, SMOOTH_GROUP_SYNDICATE_WALLS)
	canSmoothWith = list(SMOOTH_GROUP_SYNDICATE_WALLS, SMOOTH_GROUP_AIRLOCK, SMOOTH_GROUP_SHUTTLE_PARTS)