[MIRROR] Gets rid of hasvar usage and moves up some vars (#11484)

Co-authored-by: Cameron Lennox <killer65311@gmail.com>

code/game/machinery/camera/camera.dm

@@ -124,8 +124,8 @@
 /obj/machinery/camera/hitby(AM as mob|obj)
 	..()
 	if (istype(AM, /obj))
-		var/obj/O = AM
-		if (O.throwforce >= src.toughness)
+		var/obj/item/O = AM
+		if(O.throwforce >= src.toughness)
 			visible_message(span_boldwarning("[src] was hit by [O]."))
 		take_damage(O.throwforce)
 

code/game/machinery/deployable.dm

@@ -61,9 +61,9 @@ Deployable items
 		return
 	else
 		switch(W.damtype)
-			if("fire")
+			if(BURN)
 				health -= W.force * 0.75
-			if("brute")
+			if(BRUTE)
 				health -= W.force * 0.5
 		playsound(src, 'sound/weapons/smash.ogg', 50, 1)
 		CheckHealth()

code/game/machinery/floor_light.dm

@@ -1,5 +1,20 @@
 var/list/floor_light_cache = list()
 
+/obj/item/floor_light
+	name = "floor light kit"
+	desc = "A backlit floor panel, ready for installation!"
+	icon = 'icons/obj/machines/floor_light.dmi'
+	icon_state = "item"
+	matter = list(MAT_STEEL = 2500, MAT_GLASS = 2750)
+
+/obj/item/floor_light/attack_self(mob/user)
+	var/turf/T = get_turf(user)
+	if(!T)
+		to_chat(user, span_warning("You need to be on a floor to install this."))
+		return
+	new /obj/machinery/floor_light(T)
+	qdel(src)
+
 /obj/machinery/floor_light
 	name = "floor light"
 	icon = 'icons/obj/machines/floor_light.dmi'
@@ -11,7 +26,6 @@ var/list/floor_light_cache = list()
 	idle_power_usage = 2
 	active_power_usage = 20
 	power_channel = LIGHT
-	matter = list(MAT_STEEL = 2500, MAT_GLASS = 2750)
 
 	var/on
 	var/damaged

code/game/machinery/partslathe_vr.dm

@@ -196,7 +196,7 @@
 /obj/machinery/partslathe/proc/build(var/datum/category_item/partslathe/D)
 	for(var/M in D.resources)
 		materials[M] = max(0, materials[M] - CEILING((D.resources[M] * mat_efficiency), 1))
-	var/obj/new_item = D.build(loc);
+	var/obj/item/new_item = D.build(loc);
 	if(new_item)
 		new_item.loc = loc
 		if(mat_efficiency < 1) // No matter out of nowhere