initial commit - cross reference with 5th port - obviously has compile errors

code/modules/mining/machine_input_output_plates.dm

@@ -0,0 +1,31 @@
+/**********************Input and output plates**************************/
+
+/obj/machinery/mineral/input
+	icon = 'icons/mob/screen_gen.dmi'
+	icon_state = "x2"
+	name = "Input area"
+	density = 0
+	anchored = 1
+
+/obj/machinery/mineral/input/New()
+	icon_state = "blank"
+
+/obj/machinery/mineral/output
+	icon = 'icons/mob/screen_gen.dmi'
+	icon_state = "x"
+	name = "Output area"
+	density = 0
+	anchored = 1
+
+/obj/machinery/mineral/output/New()
+	icon_state = "blank"
+
+/obj/machinery/mineral
+	var/input_dir = NORTH
+	var/output_dir = SOUTH
+
+/obj/machinery/mineral/proc/unload_mineral(atom/movable/S)
+	S.loc = loc
+	var/turf/T = get_step(src,output_dir)
+	if(T)
+		S.loc = T