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

code/game/shuttle_engines.dm

@@ -0,0 +1,37 @@
+
+/obj/structure/shuttle
+	name = "shuttle"
+	icon = 'icons/turf/shuttle.dmi'
+
+/obj/structure/shuttle/engine
+	name = "engine"
+	density = 1
+	anchored = 1
+
+/obj/structure/shuttle/engine/heater
+	name = "heater"
+	icon_state = "heater"
+
+/obj/structure/shuttle/engine/platform
+	name = "platform"
+	icon_state = "platform"
+
+/obj/structure/shuttle/engine/propulsion
+	name = "propulsion"
+	icon_state = "propulsion"
+	opacity = 1
+
+/obj/structure/shuttle/engine/propulsion/burst
+	name = "burst"
+
+/obj/structure/shuttle/engine/propulsion/burst/left
+	name = "left"
+	icon_state = "burst_l"
+
+/obj/structure/shuttle/engine/propulsion/burst/right
+	name = "right"
+	icon_state = "burst_r"
+
+/obj/structure/shuttle/engine/router
+	name = "router"
+	icon_state = "router"