Big enough carrots get a chance to be turned into full-sized carrot swords instead of shivs (#79718)

## About The Pull Request

A funny little interaction I came up with while sitting in a toilet.
Since high potency carrots can be quite big, you could definetly cut
more than a shiv out of them. A sword, for example. A bit of reward for
making such a high-potency carrot in the first place.


![image](https://github.com/tgstation/tgstation/assets/122572637/8076e714-0b74-4ac1-8ed2-66f39e42b0e2)


## Why It's Good For The Game

Comedic purpose, and who knows, maybe someone will be a gimmick
botany-knight based on these?

## Changelog

🆑
add: Adds a chance that, when sharpened, a sufficiently potent carrot
will turn into a sword instead of a shiv.
/🆑

---------

Co-authored-by: Ghom <42542238+Ghommie@users.noreply.github.com>
Co-authored-by: carlarctg <53100513+carlarctg@users.noreply.github.com>

code/game/objects/items/weaponry.dm

@@ -113,6 +113,21 @@ for further reading, please see: https://github.com/tgstation/tgstation/pull/301
 	throw_range = 5
 	armour_penetration = 35
 
+/obj/item/claymore/carrot
+	name = "carrot sword"
+	desc = "A full-sized carrot sword. Definitely \not\ good for the eyes, not anymore."
+	icon_state = "carrot_sword"
+	inhand_icon_state = "carrot_sword"
+	worn_icon_state = "carrot_sword"
+	flags_1 = NONE
+	force = 19
+	throwforce = 7
+	throw_speed = 3
+	throw_range = 7
+	armour_penetration = 5
+	block_chance = 10
+	resistance_flags = NONE
+
 /obj/item/claymore/highlander //ALL COMMENTS MADE REGARDING THIS SWORD MUST BE MADE IN ALL CAPS
 	desc = "<b><i>THERE CAN BE ONLY ONE, AND IT WILL BE YOU!!!</i></b>\nActivate it in your hand to point to the nearest victim."
 	flags_1 = CONDUCT_1

code/modules/hydroponics/grown/root.dm

@@ -27,11 +27,17 @@
 
 /obj/item/food/grown/carrot/attackby(obj/item/I, mob/user, params)
 	if(I.get_sharpness())
-		to_chat(user, span_notice("You sharpen the carrot into a shiv with [I]."))
-		var/obj/item/knife/shiv/carrot/Shiv = new /obj/item/knife/shiv/carrot
+		var/carrot_blade
+		var/carrot_sword_chance = (max(0, seed.potency - 50) / 50)
+		if (prob(carrot_sword_chance))
+			carrot_blade = new /obj/item/claymore/carrot
+			to_chat(user, span_notice("You sharpen the carrot into a sword with [I]."))
+		else
+			carrot_blade = new /obj/item/knife/shiv/carrot
+			to_chat(user, span_notice("You sharpen the carrot into a shiv with [I]."))
 		remove_item_from_storage(user)
 		qdel(src)
-		user.put_in_hands(Shiv)
+		user.put_in_hands(carrot_blade)
 	else
 		return ..()