[MIRROR] Finish Machinery new to init (#10439)

Co-authored-by: Kashargul <144968721+Kashargul@users.noreply.github.com>

code/modules/shieldgen/emergency_shield.dm

@@ -28,16 +28,16 @@
 		qdel(src)
 		return
 
-/obj/machinery/shield/New()
+/obj/machinery/shield/Initialize(mapload)
 	src.set_dir(pick(1,2,3,4))
-	..()
+	. = ..()
 	update_nearby_tiles(need_rebuild=1)
 
 /obj/machinery/shield/Destroy()
 	opacity = 0
 	density = FALSE
 	update_nearby_tiles()
-	..()
+	. = ..()
 
 /obj/machinery/shield/attackby(obj/item/W as obj, mob/user as mob)
 	if(!istype(W)) return

code/modules/shieldgen/sheldwallgen.dm

@@ -151,8 +151,7 @@
 		var/field_dir = get_dir(T2,get_step(T2, NSEW))
 		T = get_step(T2, NSEW)
 		T2 = T
-		var/obj/machinery/shieldwall/CF = new/obj/machinery/shieldwall/(src, G) //(ref to this gen, ref to connected gen)
-		CF.loc = T
+		var/obj/machinery/shieldwall/CF = new/obj/machinery/shieldwall(T, src, G) //(ref to this gen, ref to connected gen)
 		CF.set_dir(field_dir)
 
 
@@ -239,19 +238,19 @@
 		var/power_usage = 2500	//how much power it takes to sustain the shield
 		var/generate_power_usage = 7500	//how much power it takes to start up the shield
 
-/obj/machinery/shieldwall/New(var/obj/machinery/shieldwallgen/A, var/obj/machinery/shieldwallgen/B)
-	..()
+/obj/machinery/shieldwall/Initialize(mapload, var/obj/machinery/shieldwallgen/A, var/obj/machinery/shieldwallgen/B)
+	. = ..()
 	update_nearby_tiles()
 	src.gen_primary = A
 	src.gen_secondary = B
-	if(A && B && A.active && B.active)
+	if(istype(A) && istype(B) && A.active && B.active)
 		needs_power = 1
 		if(prob(50))
 			A.storedpower -= generate_power_usage
 		else
 			B.storedpower -= generate_power_usage
 	else
-		qdel(src) //need at least two generator posts
+		return INITIALIZE_HINT_QDEL
 
 /obj/machinery/shieldwall/Destroy()
 	update_nearby_tiles()

code/modules/shieldgen/shield_diffuser.dm

@@ -16,9 +16,6 @@
 
 /obj/machinery/shield_diffuser/Initialize(mapload)
 	. = ..()
-	// TODO - Remove this bit once machines are converted to Initialize
-	if(ispath(circuit))
-		circuit = new circuit(src)
 	default_apply_parts()
 
 	var/turf/T = get_turf(src)

code/modules/shieldgen/shield_generator.dm

@@ -54,9 +54,6 @@
 	. = ..()
 	if(!wires)
 		wires = new(src)
-	// TODO - Remove this bit once machines are converted to Initialize
-	if(ispath(circuit))
-		circuit = new circuit(src)
 	default_apply_parts()
 	connect_to_network()