Remove infinite claw sharpening

code/game/gamemodes/cult/cult_items.dm

@@ -201,7 +201,7 @@
 	increment = 5
 	max = 40
 	prefix = "darkened"
-	claw_damage_increase = 2
+	claw_damage_increase = 4
 
 /obj/item/whetstone/cult/update_icon()
 	icon_state = "cult_sharpener[used ? "_used" : ""]"

code/game/objects/items/weapons/whetstone.dm

@@ -10,7 +10,7 @@
 	var/max = 30
 	var/prefix = "sharpened"
 	var/requires_sharpness = 1
-	var/claw_damage_increase = 1
+	var/claw_damage_increase = 2
 
 
 /obj/item/whetstone/attackby(obj/item/I, mob/user, params)
@@ -58,13 +58,18 @@
 		var/mob/living/carbon/human/H = user
 		var/datum/unarmed_attack/attack = H.dna.species.unarmed
 		if(istype(attack, /datum/unarmed_attack/claws))
-			attack.damage += claw_damage_increase
-			H.visible_message("<span class='notice'>[H] sharpens [H.p_their()] claws on [src]!</span>", "<span class='notice'>You sharpen your claws on [src].</span>")
-			playsound(get_turf(H), usesound, 50, 1)
-			name = "worn out [name]"
-			desc = "[desc] At least, it used to."
-			used = TRUE
-			update_icon()
+			var/datum/unarmed_attack/claws/C = attack
+			if(!C.has_been_sharpened)
+				C.has_been_sharpened = TRUE
+				attack.damage += claw_damage_increase
+				H.visible_message("<span class='notice'>[H] sharpens [H.p_their()] claws on [src]!</span>", "<span class='notice'>You sharpen your claws on [src].</span>")
+				playsound(get_turf(H), usesound, 50, 1)
+				name = "worn out [name]"
+				desc = "[desc] At least, it used to."
+				used = TRUE
+				update_icon()
+			else
+				to_chat(user, "<span class='warning'>You can not sharpen your claws any further!</span>")
 
 /obj/item/whetstone/super
 	name = "super whetstone block"

code/modules/mob/living/carbon/human/species/_species.dm

@@ -521,6 +521,7 @@
 	miss_sound = 'sound/weapons/slashmiss.ogg'
 	sharp = TRUE
 	animation_type = ATTACK_EFFECT_CLAW
+	var/has_been_sharpened = FALSE
 
 /datum/unarmed_attack/bite
 	attack_verb = list("chomp")