Unused/WorkInProgress folder cleanup

code/modules/shieldgen/shield_gen_external.dm

@@ -0,0 +1,42 @@
+
+//---------- external shield generator
+//generates an energy field that loops around any built up area in space (is useless inside) halts movement and airflow, is blocked by walls, windows, airlocks etc
+
+/obj/machinery/shield_gen/external/New()
+	..()
+
+/obj/machinery/shield_gen/external/get_shielded_turfs()
+	var
+		list
+			open = list(get_turf(src))
+			closed = list()
+
+	while(open.len)
+		for(var/turf/T in open)
+			for(var/turf/O in orange(1, T))
+				if(get_dist(O,src) > field_radius)
+					continue
+				var/add_this_turf = 0
+				if(istype(O,/turf/space))
+					for(var/turf/simulated/G in orange(1, O))
+						add_this_turf = 1
+						break
+
+					//uncomment this for structures (but not lattices) to be surrounded by shield as well
+					/*if(!add_this_turf)
+						for(var/obj/structure/S in orange(1, O))
+							if(!istype(S, /obj/structure/lattice))
+								add_this_turf = 1
+								break
+					if(add_this_turf)
+						for(var/obj/structure/S in O)
+							if(!istype(S, /obj/structure/lattice))
+								add_this_turf = 0
+								break*/
+
+					if(add_this_turf && !(O in open) && !(O in closed))
+						open += O
+			open -= T
+			closed += T
+
+	return closed