diff --git a/code/modules/admin/verbs/debug.dm b/code/modules/admin/verbs/debug.dm
index eecfb9537d1..90a14e8d47c 100644
--- a/code/modules/admin/verbs/debug.dm
+++ b/code/modules/admin/verbs/debug.dm
@@ -200,7 +200,7 @@ But you can call procs that are of type /mob/living/carbon/human/proc/ for that
 				. += "[procname] returned an associative list:"
 				for(var/key in returnedlist)
 					. += "\n[key] = [returnedlist[key]]"
-				
+
 			else
 				. += "[procname] returned a list:"
 				for(var/elem in returnedlist)
@@ -644,8 +644,15 @@ var/global/list/g_fancy_list_of_types = null
 			E.active = 1
 
 	for(var/obj/machinery/field/generator/F in machines)
-		if(F.anchored)
-			F.Varedit_start = 1
+		if(F.active == 0)
+			F.active = 1
+			F.state = 2
+			F.power = 250
+			F.anchored = 1
+			F.warming_up = 3
+			F.start_fields()
+			F.update_icon()
+
 	spawn(30)
 		for(var/obj/machinery/the_singularitygen/G in machines)
 			if(G.anchored)
diff --git a/code/modules/power/singularity/containment_field.dm b/code/modules/power/singularity/containment_field.dm
index c1bdb82a9d8..cb4d7e439f1 100644
--- a/code/modules/power/singularity/containment_field.dm
+++ b/code/modules/power/singularity/containment_field.dm
@@ -15,10 +15,8 @@
 	var/obj/machinery/field/generator/FG2 = null
 
 /obj/machinery/field/containment/Destroy()
-	if(FG1 && !FG1.clean_up)
-		FG1.cleanup()
-	if(FG2 && !FG2.clean_up)
-		FG2.cleanup()
+	FG1.fields -= src
+	FG2.fields -= src
 	return ..()
 
 /obj/machinery/field/containment/attack_hand(mob/user)
diff --git a/code/modules/power/singularity/field_generator.dm b/code/modules/power/singularity/field_generator.dm
index 008416ac9e5..47604070cbd 100644
--- a/code/modules/power/singularity/field_generator.dm
+++ b/code/modules/power/singularity/field_generator.dm
@@ -13,6 +13,15 @@ field_generator power level display
 */
 
 #define field_generator_max_power 250
+
+#define FG_UNSECURED 0
+#define FG_SECURED 1
+#define FG_WELDED 2
+
+#define FG_OFFLINE 0
+#define FG_CHARGING 1
+#define FG_ONLINE 2
+
 /obj/machinery/field/generator
 	name = "Field Generator"
 	desc = "A large thermal battery that projects a high amount of energy when powered."
@@ -22,76 +31,51 @@ field_generator power level display
 	density = 1
 	use_power = 0
 	var/const/num_power_levels = 6	// Total number of power level icon has
-	var/Varedit_start = 0
-	var/Varpower = 0
-	var/active = 0
+	var/power_level = 0
+	var/active = FG_OFFLINE
 	var/power = 20  // Current amount of power
-	var/state = 0
+	var/state = FG_UNSECURED
 	var/warming_up = 0
 	var/list/obj/machinery/field/containment/fields
 	var/list/obj/machinery/field/generator/connected_gens
 	var/clean_up = 0
 
-
 /obj/machinery/field/generator/update_icon()
 	overlays.Cut()
 	if(warming_up)
 		overlays += "+a[warming_up]"
 	if(fields.len)
 		overlays += "+on"
-	// Power level indicator
-	// Scale % power to % num_power_levels and truncate value
-	var/level = round(num_power_levels * power / field_generator_max_power)
-	// Clamp between 0 and num_power_levels for out of range power values
-	level = Clamp(level, 0, num_power_levels)
-	if(level)
-		overlays += "+p[level]"
-
-	return
+	if(power_level)
+		overlays += "+p[power_level]"
 
 
 /obj/machinery/field/generator/New()
 	..()
 	fields = list()
 	connected_gens = list()
-	return
 
 
 /obj/machinery/field/generator/process()
-	if(Varedit_start == 1)
-		if(active == 0)
-			active = 1
-			state = 2
-			power = field_generator_max_power
-			anchored = 1
-			warming_up = 3
-			start_fields()
-			update_icon()
-		Varedit_start = 0
-
-	if(src.active == 2)
+	if(active == FG_ONLINE)
 		calc_power()
-		update_icon()
-	return
-
 
 /obj/machinery/field/generator/attack_hand(mob/user)
-	if(state == 2)
+	if(state == FG_WELDED)
 		if(get_dist(src, user) <= 1)//Need to actually touch the thing to turn it on
-			if(src.active >= 1)
-				user << "<span class='warning'>You are unable to turn off the [src.name] once it is online!</span>"
+			if(active >= FG_CHARGING)
+				user << "<span class='warning'>You are unable to turn off the [name] once it is online!</span>"
 				return 1
 			else
-				user.visible_message("[user.name] turns on the [src.name].", \
-					"<span class='notice'>You turn on the [src.name].</span>", \
+				user.visible_message("[user.name] turns on the [name].", \
+					"<span class='notice'>You turn on the [name].</span>", \
 					"<span class='italics'>You hear heavy droning.</span>")
 				turn_on()
 				investigate_log("<font color='green'>activated</font> by [user.key].","singulo")
 
-				src.add_fingerprint(user)
+				add_fingerprint(user)
 	else
 		user << "<span class='warning'>The [src] needs to be firmly secured to the floor first!</span>"
-		return
 
 
 /obj/machinery/field/generator/attackby(obj/item/W, mob/user, params)
@@ -100,54 +84,52 @@ field_generator power level display
 		return
 	else if(istype(W, /obj/item/weapon/wrench))
 		switch(state)
-			if(0)
+			if(FG_UNSECURED)
 				if(isinspace()) return
-				state = 1
-				playsound(src.loc, 'sound/items/Ratchet.ogg', 75, 1)
-				user.visible_message("[user.name] secures [src.name] to the floor.", \
+				state = FG_SECURED
+				playsound(loc, 'sound/items/Ratchet.ogg', 75, 1)
+				user.visible_message("[user.name] secures [name] to the floor.", \
 					"<span class='notice'>You secure the external reinforcing bolts to the floor.</span>", \
 					"<span class='italics'>You hear ratchet.</span>")
-				src.anchored = 1
-			if(1)
-				state = 0
-				playsound(src.loc, 'sound/items/Ratchet.ogg', 75, 1)
-				user.visible_message("[user.name] unsecures [src.name] reinforcing bolts from the floor.", \
+				anchored = 1
+			if(FG_SECURED)
+				state = FG_UNSECURED
+				playsound(loc, 'sound/items/Ratchet.ogg', 75, 1)
+				user.visible_message("[user.name] unsecures [name] reinforcing bolts from the floor.", \
 					"<span class='notice'>You undo the external reinforcing bolts.</span>", \
 					"<span class='italics'>You hear ratchet.</span>")
-				src.anchored = 0
-			if(2)
-				user << "<span class='warning'>The [src.name] needs to be unwelded from the floor!</span>"
-				return
+				anchored = 0
+			if(FG_WELDED)
+				user << "<span class='warning'>The [name] needs to be unwelded from the floor!</span>"
+
 	else if(istype(W, /obj/item/weapon/weldingtool))
 		var/obj/item/weapon/weldingtool/WT = W
 		switch(state)
-			if(0)
-				user << "<span class='warning'>The [src.name] needs to be wrenched to the floor!</span>"
-				return
-			if(1)
+			if(FG_UNSECURED)
+				user << "<span class='warning'>The [name] needs to be wrenched to the floor!</span>"
+
+			if(FG_SECURED)
 				if (WT.remove_fuel(0,user))
-					playsound(src.loc, 'sound/items/Welder2.ogg', 50, 1)
-					user.visible_message("[user.name] starts to weld the [src.name] to the floor.", \
+					playsound(loc, 'sound/items/Welder2.ogg', 50, 1)
+					user.visible_message("[user.name] starts to weld the [name] to the floor.", \
 						"<span class='notice'>You start to weld \the [src] to the floor...</span>", \
 						"<span class='italics'>You hear welding.</span>")
 					if (do_after(user,20/W.toolspeed, target = src))
 						if(!src || !WT.isOn()) return
-						state = 2
+						state = FG_WELDED
 						user << "<span class='notice'>You weld the field generator to the floor.</span>"
-				else
-					return
-			if(2)
+
+			if(FG_WELDED)
 				if (WT.remove_fuel(0,user))
-					playsound(src.loc, 'sound/items/Welder2.ogg', 50, 1)
-					user.visible_message("[user.name] starts to cut the [src.name] free from the floor.", \
+					playsound(loc, 'sound/items/Welder2.ogg', 50, 1)
+					user.visible_message("[user.name] starts to cut the [name] free from the floor.", \
 						"<span class='notice'>You start to cut \the [src] free from the floor...</span>", \
 						"<span class='italics'>You hear welding.</span>")
 					if (do_after(user,20/W.toolspeed, target = src))
 						if(!src || !WT.isOn()) return
-						state = 1
+						state = FG_SECURED
 						user << "<span class='notice'>You cut \the [src] free from the floor.</span>"
-				else
-					return
+
 	else
 		..()
 
@@ -164,28 +146,33 @@ field_generator power level display
 
 /obj/machinery/field/generator/bullet_act(obj/item/projectile/Proj)
 	if(Proj.flag != "bullet")
-		power += Proj.damage
-		update_icon()
+		power = min(power + Proj.damage, field_generator_max_power)
+		check_power_level()
 	return 0
 
 
 /obj/machinery/field/generator/Destroy()
-	src.cleanup()
+	cleanup()
 	return ..()
 
 
+/obj/machinery/field/generator/proc/check_power_level()
+	var/new_level = round(num_power_levels * power / field_generator_max_power)
+	if(new_level != power_level)
+		power_level = new_level
+		update_icon()
 
 /obj/machinery/field/generator/proc/turn_off()
-	active = 0
+	active = FG_OFFLINE
 	spawn(1)
-		src.cleanup()
+		cleanup()
 		while (warming_up>0 && !active)
 			sleep(50)
 			warming_up--
 			update_icon()
 
 /obj/machinery/field/generator/proc/turn_on()
-	active = 1
+	active = FG_CHARGING
 	spawn(1)
 		while (warming_up<3 && active)
 			sleep(50)
@@ -196,44 +183,35 @@ field_generator power level display
 
 
 /obj/machinery/field/generator/proc/calc_power()
-	if(Varpower)
-		return 1
+	var/power_draw = 2 + fields.len
 
-	update_icon()
-	if(src.power > field_generator_max_power)
-		src.power = field_generator_max_power
-
-	var/power_draw = 2
-	for (var/obj/machinery/field/containment/F in fields)
-		if (isnull(F))
-			continue
-		power_draw++
 	if(draw_power(round(power_draw/2,1)))
+		check_power_level()
 		return 1
 	else
-		visible_message("<span class='danger'>The [src.name] shuts down!</span>", "<span class='italics'>You hear something shutting down.</span>")
+		visible_message("<span class='danger'>The [name] shuts down!</span>", "<span class='italics'>You hear something shutting down.</span>")
 		turn_off()
 		investigate_log("ran out of power and <font color='red'>deactivated</font>","singulo")
-		src.power = 0
+		power = 0
+		check_power_level()
 		return 0
 
 //This could likely be better, it tends to start loopin if you have a complex generator loop setup.  Still works well enough to run the engine fields will likely recode the field gens and fields sometime -Mport
 /obj/machinery/field/generator/proc/draw_power(draw = 0, failsafe = 0, obj/machinery/field/generator/G = null, obj/machinery/field/generator/last = null)
-	if(Varpower)
-		return 1
-	if((G && G == src) || (failsafe >= 8))//Loopin, set fail
+	if((G && (G == src)) || (failsafe >= 8))//Loopin, set fail
 		return 0
 	else
 		failsafe++
-	if(src.power >= draw)//We have enough power
-		src.power -= draw
+
+	if(power >= draw)//We have enough power
+		power -= draw
 		return 1
+
 	else//Need more power
-		draw -= src.power
-		src.power = 0
-		for(var/obj/machinery/field/generator/FG in connected_gens)
-			if(isnull(FG))
-				continue
+		draw -= power
+		power = 0
+		for(var/CG in connected_gens)
+			var/obj/machinery/field/generator/FG = CG
 			if(FG == last)//We just asked you
 				continue
 			if(G)//Another gen is askin for power and we dont have it
@@ -249,7 +227,7 @@ field_generator power level display
 
 
 /obj/machinery/field/generator/proc/start_fields()
-	if(!src.state == 2 || !anchored)
+	if(state != FG_WELDED || !anchored)
 		turn_off()
 		return
 	spawn(1)
@@ -260,82 +238,72 @@ field_generator power level display
 		setup_field(4)
 	spawn(4)
 		setup_field(8)
-	src.active = 2
+	active = FG_ONLINE
 
 
 /obj/machinery/field/generator/proc/setup_field(NSEW)
-	var/turf/T = src.loc
-	var/obj/machinery/field/generator/G
+	var/turf/T = loc
+	if(!istype(T))
+		return 0
+
+	var/obj/machinery/field/generator/G = null
 	var/steps = 0
 	if(!NSEW)//Make sure its ran right
-		return
-	for(var/dist = 0, dist <= 9, dist += 1) // checks out to 8 tiles away for another generator
+		return 0
+	for(var/dist in 0 to 7) // checks out to 8 tiles away for another generator
 		T = get_step(T, NSEW)
 		if(T.density)//We cant shoot a field though this
 			return 0
-		for(var/atom/A in T.contents)
-			if(ismob(A))
-				continue
-			if(!istype(A,/obj/machinery/field/generator))
-				if((istype(A,/obj/machinery/door)||istype(A,/obj/machinery/the_singularitygen))&&(A.density))
-					return 0
-		steps += 1
+
 		G = locate(/obj/machinery/field/generator) in T
-		if(!isnull(G))
+		if(G)
 			steps -= 1
 			if(!G.active)
 				return 0
 			break
-	if(isnull(G))
-		return
-	T = src.loc
-	for(var/dist = 0, dist < steps, dist += 1) // creates each field tile
+
+		for(var/TC in T.contents)
+			var/atom/A = TC
+			if(ismob(A))
+				continue
+			if(A.density)
+				return 0
+
+		steps++
+
+	if(!G)
+		return 0
+
+	T = loc
+	for(var/dist in 0 to steps) // creates each field tile
 		var/field_dir = get_dir(T,get_step(G.loc, NSEW))
 		T = get_step(T, NSEW)
 		if(!locate(/obj/machinery/field/containment) in T)
 			var/obj/machinery/field/containment/CF = new/obj/machinery/field/containment()
 			CF.set_master(src,G)
-			fields += CF
-			G.fields += CF
 			CF.loc = T
 			CF.dir = field_dir
-			for(var/mob/living/L in CF.loc)
+			fields += CF
+			G.fields += CF
+			for(var/mob/living/L in T)
 				CF.Crossed(L)
-	var/listcheck = 0
-	for(var/obj/machinery/field/generator/FG in connected_gens)
-		if (isnull(FG))
-			continue
-		if(FG == G)
-			listcheck = 1
-			break
-	if(!listcheck)
-		connected_gens.Add(G)
-	listcheck = 0
-	for(var/obj/machinery/field/generator/FG2 in G.connected_gens)
-		if (isnull(FG2))
-			continue
-		if(FG2 == src)
-			listcheck = 1
-			break
-	if(!listcheck)
-		G.connected_gens.Add(src)
+
+	connected_gens |= G
+	G.connected_gens |= src
+	update_icon()
 
 
 /obj/machinery/field/generator/proc/cleanup()
 	clean_up = 1
-	for (var/obj/machinery/field/containment/F in fields)
-		if (isnull(F))
-			continue
+	for (var/F in fields)
 		qdel(F)
-	fields = list()
-	for(var/obj/machinery/field/generator/FG in connected_gens)
-		if (isnull(FG))
-			continue
-		FG.connected_gens.Remove(src)
+
+	for(var/CG in connected_gens)
+		var/obj/machinery/field/generator/FG = CG
+		FG.connected_gens -= src
 		if(!FG.clean_up)//Makes the other gens clean up as well
 			FG.cleanup()
-		connected_gens.Remove(FG)
-	connected_gens = list()
+		connected_gens -= FG
 	clean_up = 0
 	update_icon()
 
@@ -359,3 +327,11 @@ field_generator power level display
 /obj/machinery/field/generator/bump_field(atom/movable/AM as mob|obj)
 	if(fields.len)
 		..()
+
+#undef FG_UNSECURED
+#undef FG_SECURED
+#undef FG_WELDED
+
+#undef FG_OFFLINE
+#undef FG_CHARGING
+#undef FG_ONLINE