bugfix: blacklisted items usage in crafting (#3243)

code/modules/crafting/craft.dm

@@ -190,6 +190,9 @@
 	var/list/parts_used = list()
 	var/list/reagent_containers_for_deletion = list()
 	var/list/item_stacks_for_deletion = list()
+	for(var/atom/movable/thing in surroundings)
+		if(thing.type in recipe.blacklist)
+			surroundings -= thing
 
 	for(var/thing in recipe.reqs)
 		var/needed_amount = recipe.reqs[thing]

code/modules/crafting/recipes.dm

@@ -1,7 +1,7 @@
 /datum/crafting_recipe
 	var/name = "" //in-game display name
 	var/reqs[] = list() //type paths of items consumed associated with how many are needed
-	var/blacklist[] = list() //type paths of items explicitly not allowed as an ingredient
+	var/blacklist[] = list() //type paths of items explicitly not allowed as an ingredient, you can expand it in New() by using typecacheof to ban subtypes
 	var/result //type path of item resulting from this craft
 	var/tools[] = list() //tool behaviours of items needed but not consumed
 	var/pathtools[] = list() //type paths of items needed but not consumed

code/modules/projectiles/guns/throw/crossbow.dm

@@ -234,6 +234,7 @@
 	reqs = list(/datum/reagent/fuel = 10,
 				/obj/item/stack/sheet/cloth = 1,
 				/obj/item/arrow/rod = 1)
+	blacklist = list(/obj/item/arrow/rod/fire)
 	time = 5
 	category = CAT_WEAPONRY
 	subcategory = CAT_AMMO