Recipe with 0 amount of ingredient sometimes don't work

[<NO_NAME>]

I was screwing around with mods to figure out something and I found a peculiar problem.

This recipe don't work correctly:

Here is the code

Code: Select all

{
	type = "recipe",
	name = "remove-perfectly-generic-object",
	enabled = true,
	energy_required = 0.1,
	icons = {{icon = "__PerfectlyGenericObject__/graphics/icons/remove-perfectly-generic-object.png"}},
	icon_size = 32,
	ingredients =
	{
		{name = "transport-belt", amount = 0},
		{name = "perfectly-generic-object", amount = 1}
	},
	results = 
	{
		{name = "what-pumpkin", amount = 1, probability = 0.0}
	},
	main_product= "",
	subgroup = "belt",
	order = "e[perfectly-generic-object]-b[remove-perfectly-generic-object]",
}

Factorio says "Not enough ingredients" even if I have both "transport-belt" and "perfectly-generic-object" in my inventory.

The recipe works correctly if I change amount of transport belts to 1.
It also works with 0 amount of ingredient in different configuration:

Different configuration

Code: Select all

{
	type = "recipe",
	name = "remove-perfectly-generic-object",
	enabled = true,
	energy_required = 0.1,
	icons = {{icon = "__PerfectlyGenericObject__/graphics/icons/remove-perfectly-generic-object.png"}},
	icon_size = 32,
	ingredients =
	{
		{name = "perfectly-generic-object", amount = 0}
	},
	results = 
	{
		{name = "what-pumpkin", amount = 1, probability = 0.0}
	},
	main_product= "",
	subgroup = "belt",
	order = "e[perfectly-generic-object]-b[remove-perfectly-generic-object]",
}

[Deadlock989]

What does including 0 transport belts in a recipe actually mean?

[5thHorseman]

Yeah it seems that transport belt line is totally not needed in your recipe.

Here's the entire code block from my "Free Circuit Wires" mod.

Code: Select all

data.raw["recipe"]["red-wire"].ingredients = {} 
data.raw["recipe"]["green-wire"].ingredients = {}

[<NO_NAME>]

What does including 0 transport belts in a recipe actually mean?

It doesn't mean anything. I've been testing something else and I found this by accident.
Handling of 0 amount by the game is inconsistent so it qualifies as a bug.

[kovarex]

So I just made a check with an error when recipe ingredient item count is 0.

[<NO_NAME>]

So I just made a check with an error when recipe ingredient item count is 0.

After the next update I will report if everything work correctly.

[<NO_NAME>]

Looks like it works.
(Well recipes with 0 amount of an ingredient probably still don't work but you definitely can't define one now.)