recipe by name

[matjojo]

When a player crafts an item the game triggers the event "on_player_crafted_item". In that even you get the variable item_stack. So, you have the items name with "event.item_stack.name". How does one get the recipe class of the achieved name.

I tried a couple of things that (of course) didn't work. I tried just adding ".recipe" after the "item_stack" (with and without ".name"). and some other things that didn't work.

How would one get the recipe of an item if you have the name of that item?

thanks,
Matjojo

[DaveMcW]

You need to search player.force.recipes for a matching item.

Code: Select all

function get_recipe(player, item)
  for _, recipe in pairs(player.force.recipes) do
    for _, product in pairs(recipe.products) do
      if (product.name == item) then
        return recipe.name
      end
    end
  end
  return nil
end

Note that it's possible for an item to have more than one recipe.

[matjojo]

You need to search player.force.recipes for a matching item.

snippy snippet

Code: Select all

function get_recipe(player, item)
  for _, recipe in pairs(player.force.recipes) do
    for _, product in pairs(recipe.products) do
      if (product.name == item) then
        return recipe.name
      end
    end
  end
  return nil
end

Note that it's possible for an item to have more than one recipe.

Thanks, that worked. I figured I needed to call the function like this:

Code: Select all

get_recipe(game.player, event.item_stack.name)

and that worked.

now, you pointed out that there are items with more then one recipe, would you know a way to make sure you have the right recipe selected?