[MIRROR] Adds scanner gate shells (#7408)

* Adds scanner gate shells (#60558)

* Adds scanner gate shells

Co-authored-by: SmArtKar <44720187+SmArtKar@users.noreply.github.com>

code/modules/wiremod/shell/scanner_gate.dm

@@ -0,0 +1,66 @@
+/obj/structure/scanner_gate_shell
+	name = "circuit scanner gate"
+	desc = "A gate able to perform mid-depth scans on any organisms who pass under it."
+	icon = 'icons/obj/machines/scangate.dmi'
+	icon_state = "scangate_black"
+	var/scanline_timer
+
+/obj/structure/scanner_gate_shell/Initialize()
+	. = ..()
+	set_scanline("passive")
+	var/static/list/loc_connections = list(
+		COMSIG_ATOM_ENTERED = .proc/on_entered,
+	)
+	AddElement(/datum/element/connect_loc, loc_connections)
+
+	AddComponent(/datum/component/shell, list(
+		new /obj/item/circuit_component/scanner_gate()
+	), SHELL_CAPACITY_LARGE, SHELL_FLAG_REQUIRE_ANCHOR)
+
+/obj/structure/scanner_gate_shell/wrench_act(mob/living/user, obj/item/tool)
+	set_anchored(!anchored)
+	tool.play_tool_sound(src)
+	balloon_alert(user, "You [anchored?"secure":"unsecure"] [src].")
+	return TRUE
+
+/obj/structure/scanner_gate_shell/proc/on_entered(datum/source, atom/movable/AM)
+	SIGNAL_HANDLER
+	set_scanline("scanning", 10)
+	SEND_SIGNAL(src, COMSIG_SCANGATE_SHELL_PASS, AM)
+
+/obj/structure/scanner_gate_shell/proc/set_scanline(type, duration)
+	cut_overlays()
+	deltimer(scanline_timer)
+	add_overlay(type)
+	if(duration)
+		scanline_timer = addtimer(CALLBACK(src, .proc/set_scanline, "passive"), duration, TIMER_STOPPABLE)
+
+/obj/item/circuit_component/scanner_gate
+	display_name = "Scanner Gate"
+	desc = "A gate able to perform mid-depth scans on any object that pass through it."
+
+	circuit_flags = CIRCUIT_FLAG_OUTPUT_SIGNAL
+
+	var/datum/port/output/scanned
+
+	var/obj/structure/scanner_gate_shell/attached_gate
+
+/obj/item/circuit_component/scanner_gate/Initialize()
+	. = ..()
+	scanned = add_output_port("Scanned Object", PORT_TYPE_ATOM)
+
+/obj/item/circuit_component/scanner_gate/register_shell(atom/movable/shell)
+	. = ..()
+	if(istype(shell, /obj/structure/scanner_gate_shell))
+		attached_gate = shell
+		RegisterSignal(attached_gate, COMSIG_SCANGATE_SHELL_PASS, .proc/on_trigger)
+
+/obj/item/circuit_component/scanner_gate/unregister_shell(atom/movable/shell)
+	UnregisterSignal(attached_gate, COMSIG_SCANGATE_SHELL_PASS)
+	attached_gate = null
+	return ..()
+
+/obj/item/circuit_component/scanner_gate/proc/on_trigger(datum/source, atom/movable/passed)
+	SIGNAL_HANDLER
+	scanned.set_output(passed)
+	trigger_output.set_output(COMPONENT_SIGNAL)

code/modules/wiremod/shell/shell_items.dm

@@ -57,3 +57,9 @@
 	name = "brain-computer interface assembly"
 	icon_state = "bci-open"
 	shell_to_spawn = /obj/item/organ/cyberimp/bci
+
+/obj/item/shell/scanner_gate
+	name = "scanner gate assembly"
+	icon = 'icons/obj/machines/scangate.dmi'
+	icon_state = "scangate_black_open"
+	shell_to_spawn = /obj/structure/scanner_gate_shell