[MIRROR] Seethrough component for shipping containers, big bones, ratvar wreck and necropolis gate [MDB IGNORE] (#17562)

* Seethrough component for shipping containers, big bones, ratvar wreck and necropolis gate (#71212)

Big sprite, easy conversion. Let's you see through a bunch of stuff with
big sprites

🆑
qol: you can look behind shipping containers, ratvars wreck, through the
necropolis gate and behind the big bones
/🆑

Behind a container

https://user-images.githubusercontent.com/7501474/201395747-4843b2df-d3ad-4047-b4af-66310d1d0472.mp4

Through the necropolis gate

https://user-images.githubusercontent.com/7501474/201416066-9f69399d-f757-4132-941d-5cf3b98ced5d.mp4

* Seethrough component for shipping containers, big bones, ratvar wreck and necropolis gate

Co-authored-by: Time-Green <timkoster1@hotmail.com>
Co-authored-by: Tastyfish <crazychris32@gmail.com>

code/modules/mapfluff/ruins/lavalandruin_code/elephantgraveyard.dm

@@ -9,6 +9,11 @@
 	custom_materials = list(/datum/material/bone=MINERAL_MATERIAL_AMOUNT*5)
 	abstract_type = /obj/structure/statue/bone
 
+/obj/structure/statue/bone/Initialize(mapload)
+	. = ..()
+
+	AddComponent(/datum/component/seethrough, SEE_THROUGH_MAP_DEFAULT)
+
 /obj/structure/statue/bone/rib
 	name = "colossal rib"
 	desc = "It's staggering to think that something this big could have lived, let alone died."

code/modules/mapfluff/ruins/lavalandruin_code/surface.dm

@@ -21,3 +21,7 @@
 	bound_height = 64
 	pixel_y = -10
 	resistance_flags = INDESTRUCTIBLE | LAVA_PROOF | FIRE_PROOF | UNACIDABLE | ACID_PROOF
+
+/obj/structure/dead_ratvar/Initialize(mapload)
+	. = ..()
+	AddComponent(/datum/component/seethrough, SEE_THROUGH_MAP_RATVAR_WRECK)

code/modules/mapfluff/ruins/objects_and_mobs/necropolis_gate.dm

@@ -6,7 +6,8 @@
 	icon_state = "gate_full"
 	flags_1 = ON_BORDER_1
 	appearance_flags = 0
-	layer = TABLE_LAYER
+	layer = FLY_LAYER
+	plane = ABOVE_GAME_PLANE
 	anchored = TRUE
 	density = TRUE
 	pixel_x = -32
@@ -19,7 +20,6 @@
 	var/locked = FALSE
 	var/static/mutable_appearance/top_overlay
 	var/static/mutable_appearance/door_overlay
-	var/static/mutable_appearance/dais_overlay
 	var/obj/structure/opacity_blocker/sight_blocker
 	var/sight_blocker_distance = 1
 
@@ -42,15 +42,15 @@
 	door_overlay = mutable_appearance('icons/effects/96x96.dmi', "door")
 	door_overlay.layer = EDGED_TURF_LAYER
 	add_overlay(door_overlay)
-	dais_overlay = mutable_appearance('icons/effects/96x96.dmi', "gate_dais")
-	dais_overlay.layer = CLOSED_TURF_LAYER
-	add_overlay(dais_overlay)
+
+	new /obj/effect/decal/necropolis_gate_decal(loc)
 
 	var/static/list/loc_connections = list(
 		COMSIG_ATOM_EXIT = PROC_REF(on_exit),
 	)
 
 	AddElement(/datum/element/connect_loc, loc_connections)
+	AddComponent(/datum/component/seethrough, SEE_THROUGH_MAP_DEFAULT_TWO_TALL)
 
 /obj/structure/necropolis_gate/Destroy(force)
 	qdel(sight_blocker)
@@ -192,6 +192,14 @@ GLOBAL_DATUM(necropolis_gate, /obj/structure/necropolis_gate/legion_gate)
 		var/mutable_appearance/release_overlay = mutable_appearance('icons/effects/effects.dmi', "legiondoor")
 		notify_ghosts("Legion has been released in the [get_area(src)]!", source = src, alert_overlay = release_overlay, action = NOTIFY_JUMP, flashwindow = FALSE)
 
+/obj/effect/decal/necropolis_gate_decal
+	icon = 'icons/effects/96x96.dmi'
+	icon_state = "gate_dais"
+	flags_1 = ON_BORDER_1
+	appearance_flags = 0
+	pixel_x = -32
+	pixel_y = -32
+
 /obj/effect/temp_visual/necropolis
 	icon = 'icons/effects/96x96.dmi'
 	icon_state = "door_closing"
@@ -211,7 +219,8 @@ GLOBAL_DATUM(necropolis_gate, /obj/structure/necropolis_gate/legion_gate)
 	icon = 'icons/effects/160x160.dmi'
 	icon_state = "arch_full"
 	appearance_flags = 0
-	layer = TABLE_LAYER
+	layer = FLY_LAYER
+	plane = ABOVE_GAME_PLANE
 	anchored = TRUE
 	pixel_x = -64
 	pixel_y = -40
@@ -226,6 +235,8 @@ GLOBAL_DATUM(necropolis_gate, /obj/structure/necropolis_gate/legion_gate)
 	top_overlay.layer = EDGED_TURF_LAYER
 	add_overlay(top_overlay)
 
+	AddComponent(/datum/component/seethrough, SEE_THROUGH_MAP_DEFAULT_TWO_TALL)
+
 /obj/structure/necropolis_arch/singularity_pull()
 	return 0