[MIRROR] More circuit components. Restructures the circuit components folder to be more organised. (#6142)

* More circuit components. Restructures the circuit components folder to be more organised.

* Mirror!

Co-authored-by: Watermelon914 <37270891+Watermelon914@users.noreply.github.com>
Co-authored-by: Funce <funce.973@gmail.com>

code/modules/wiremod/components/math/length.dm

@@ -0,0 +1,33 @@
+/**
+ * # Length Component
+ *
+ * Return the length of an input
+ */
+/obj/item/circuit_component/length
+	display_name = "Length"
+
+	/// The input port
+	var/datum/port/input/input_port
+
+	/// The result from the output
+	var/datum/port/output/output
+	circuit_flags = CIRCUIT_FLAG_INPUT_SIGNAL|CIRCUIT_FLAG_OUTPUT_SIGNAL
+
+/obj/item/circuit_component/length/Initialize()
+	. = ..()
+	input_port = add_input_port("Input", PORT_TYPE_ANY)
+
+	output = add_output_port("Length", PORT_TYPE_NUMBER)
+
+/obj/item/circuit_component/length/Destroy()
+	input_port = null
+	output = null
+	return ..()
+
+/obj/item/circuit_component/length/input_received(datum/port/input/port)
+	. = ..()
+	if(.)
+		return
+
+	output.set_output(length(input_port.input_value))
+