code/obj/machinery/singularity.dm 
| /proc/singularity_containment_check | Checks if there is a containment field in each direction from the center turf. If not returns null. If yes returns the distance to the closest field. |
|---|---|
| /obj/machinery/the_singularity | Singularity |
| /obj/machinery/the_singularity/admin | Singularity that can exist on restricted z levels |
| /obj/machinery/containment_field | Containment field |
| /obj/item/electronics/frame/collector_array | Collector array |
| /obj/item/electronics/frame/collector_control | Collector array controller |