Fixes #5901

code/WorkInProgress/Cael_Aislinn/ShieldGen/shield_capacitor.dm

@@ -132,6 +132,9 @@
 		usr.unset_machine()
 		return
 	if( href_list["toggle"] )
+		if(!active && !anchored)
+			usr << "\red The [src] needs to be firmly secured to the floor first."
+			return
 		active = !active
 	if( href_list["charge_rate"] )
 		charge_rate = between(10000, charge_rate + text2num(href_list["charge_rate"]), max_charge_rate)

code/WorkInProgress/Cael_Aislinn/ShieldGen/shield_gen.dm

@@ -6,7 +6,7 @@
 //explosion damage is cumulative. if a tile is in range of light, medium and heavy damage, it will take a hit from all three
 
 /obj/machinery/shield_gen
-	name = "shield generator"
+	name = "bubble shield generator"
 	desc = "Machine that generates an impenetrable field of energy when activated."
 	icon = 'code/WorkInProgress/Cael_Aislinn/ShieldGen/shielding.dmi'
 	icon_state = "generator0"
@@ -180,6 +180,9 @@
 		usr.unset_machine()
 		return
 	else if( href_list["toggle"] )
+		if (!active && !anchored)
+			usr << "\red The [src] needs to be firmly secured to the floor first."
+			return
 		toggle()
 	else if( href_list["change_radius"] )
 		field_radius = between(0, field_radius + text2num(href_list["change_radius"]), max_field_radius)

code/WorkInProgress/Cael_Aislinn/ShieldGen/shield_gen_external.dm

@@ -7,39 +7,21 @@
 /obj/machinery/shield_gen/external/New()
 	..()
 
+//NOT MULTIZ COMPATIBLE
 //Search for space turfs within range that are adjacent to a simulated turf.
 /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
+	var/list/out = list()
+	
+	var/turf/gen_turf = get_turf(src)
+	if (!gen_turf)
+		return
+	
+	var/turf/T
+	for (var/x_offset = -field_radius; x_offset <= field_radius; x_offset++)
+		for (var/y_offset = -field_radius; y_offset <= field_radius; y_offset++)
+			T = locate(gen_turf.x + x_offset, gen_turf.y + y_offset, gen_turf.z)
+			if (istype(T, /turf/space))
+				//check neighbors of T
+				if (locate(/turf/simulated/) in orange(1, T))
+					out += T
+	return out