tgui backend

code/modules/wiremod/components/action/pull.dm

@@ -0,0 +1,31 @@
+/**
+ * # Pull Component
+ *
+ * Tells the shell to start pulling on a designated atom. Only works on movable shells.
+ */
+/obj/item/circuit_component/pull
+	display_name = "Start Pulling"
+	desc = "A component that can force the shell to pull entities. Only works for drone shells."
+
+	/// Frequency input
+	var/datum/port/input/target
+	circuit_flags = CIRCUIT_FLAG_INPUT_SIGNAL|CIRCUIT_FLAG_OUTPUT_SIGNAL
+
+/obj/item/circuit_component/pull/Initialize()
+	. = ..()
+	target = add_input_port("Target", PORT_TYPE_ATOM)
+
+/obj/item/circuit_component/pull/input_received(datum/port/input/port)
+	. = ..()
+	if(.)
+		return
+
+	var/atom/target_atom = target.value
+	if(!target_atom)
+		return
+
+	var/mob/shell = parent.shell
+	if(!istype(shell) || get_dist(shell, target_atom) > 1 || shell.z != target_atom.z)
+		return
+
+	shell.start_pulling(target_atom)