makes w_class use defines (#9848)

code/modules/spell_system/artifacts/armor/wizard_voidsuit.dm

@@ -39,7 +39,7 @@
 		slot_r_hand_str = "wiz_hardsuit"
 	)
 	slowdown = 1
-	w_class = 3
+	w_class = ITEMSIZE_NORMAL
 	unacidable = 1
 	armor = list(melee = 40, bullet = 20, laser = 20,energy = 20, bomb = 35, bio = 100, rad = 60)
 	siemens_coefficient = 0.35
@@ -62,4 +62,4 @@
 			RH.droplimb(0,DROPLIMB_BURN)
 		return
 	else
-		..()
+		..()

code/modules/spell_system/artifacts/items/lich_phylactery.dm

@@ -4,7 +4,7 @@
 	icon = 'icons/obj/wizard.dmi'
 	icon_state = "cursedheart-off"
 	origin_tech = list(TECH_BLUESPACE = 8, TECH_MATERIAL = 8, TECH_BIO = 8)
-	w_class = 5
+	w_class = ITEMSIZE_HUGE
 	light_color = "#6633CC"
 	light_power = 3
 	light_range = 4
@@ -43,4 +43,4 @@
 	if(!user.is_wizard() && src.lich)
 		to_chat(user, "<span class='warning'>As you pick up \the [src], you feel a wave of dread wash over you.</span>")
 		for(var/obj/machinery/light/P in view(7, user))
-			P.flicker(1)
+			P.flicker(1)

code/modules/spell_system/artifacts/items/monster_manual.dm

@@ -5,7 +5,7 @@
 	icon_state = "bookHacking"
 	throw_speed = 1
 	throw_range = 5
-	w_class = 2
+	w_class = ITEMSIZE_SMALL
 	var/uses = 1
 	var/temp = null
 	var/list/monster = list(/mob/living/simple_animal/familiar/pet/cat,
@@ -81,4 +81,4 @@
 		if(Adjacent(usr))
 			src.interact(usr)
 		else
-			usr << browse(null,"window=monstermanual")
+			usr << browse(null,"window=monstermanual")

code/modules/spell_system/artifacts/items/poppet.dm

@@ -4,7 +4,7 @@
 	desc = "A rustic doll with a vague humanoid shape."
 	icon = 'icons/obj/wizard.dmi'
 	icon_state = "poppet"
-	w_class = 2
+	w_class = ITEMSIZE_SMALL
 	var/datum/weakref/target = null
 	var/countenance = null //what species does it looks like?
 	var/cooldown_time = 120
@@ -153,4 +153,4 @@
 		to_chat(H, "<span class='danger'>You feel an outworldly force crushing you!</span>")
 		H.adjustBruteLoss(35)
 		H.apply_effect(6, WEAKEN)
-	qdel(src)
+	qdel(src)

code/modules/spell_system/artifacts/items/rune_sword.dm

@@ -7,12 +7,12 @@
 	contained_sprite = TRUE
 	active_force = 40
 	active_throwforce = 40
-	active_w_class = 5
+	active_w_class = ITEMSIZE_HUGE
 	force = 20
 	throwforce = 30
 	throw_speed = 5
 	throw_range = 10
-	w_class = 5
+	w_class = ITEMSIZE_HUGE
 	slot_flags = SLOT_BELT
 	origin_tech = list(TECH_COMBAT = 8, TECH_MATERIAL = 8)
 	attack_verb = list("attacked", "slashed", "stabbed", "sliced", "torn", "ripped", "diced", "cut")

code/modules/spell_system/spells/hand/hand_item.dm

@@ -7,7 +7,7 @@ Basically: I can use it to target things where I click. I can then pass these ta
 	icon = 'icons/mob/screen/generic.dmi'
 	flags = 0
 	abstract = 1
-	w_class = 5.0
+	w_class = ITEMSIZE_HUGE
 	icon_state = "grabbed1"
 	var/next_spell_time = 0
 	var/spell/hand/hand_spell