Updated crafting machine code to check for valid recipe when deciding to enable/disable the coin machine

scripts/crafting_machine.gd

@@ -6,9 +6,15 @@ export var recipes: Resource
 func _ready():
 	assert(recipes != null)
 
-func craft_item():
+func get_craft_recipe_item():
 	var items_in_slots = [$slot_1.item_in_hold.item_type, $slot_2.item_in_hold.item_type]
-	var crafted_item = recipes.find_recipe(items_in_slots)
+	return recipes.find_recipe(items_in_slots)
+	
+func can_craft_recipe():
+	return get_craft_recipe_item() != null
+
+func craft_item():
+	var crafted_item = get_craft_recipe_item()
 	if crafted_item == null:
 		return
 	$slot_1.destroy_item()
@@ -29,7 +35,7 @@ func should_enable_coin_machine():
 		return false
 	if not $slot_1.has_item() or not $slot_2.has_item():
 		return false
-	return true
+	return can_craft_recipe()
 
 func _on_craft_item_holder_item_changed(item):
 	$coin_machine.enabled = should_enable_coin_machine()