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qwrwed wrote:I am trying to make a pickaxe that automatically smelts whatever it mines, but am having trouble. I have typed this code in the minetest.register_tool:
after_use = function(itemstack, user, node, digparams)
local node = node.name
print(node)
local product = minetest.get_craft_result({method = "cooking", width = 1, items = {node}})
print(product)
user:get_inventory():add_item("main", (product))
return itemstack
end
This just prints something similar to:

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Code: Select all

default:stone
table: 0x0a828580

and does not add the smelted item.
I have also tried returning "product" instead of "itemstack", but this also does not work as intended; it just removes the tools.
How do I find out the name of the craft result?

after_use = function(itemstack, user, node, digparams)
local node = node.name
print(node)
local product = minetest.get_craft_result({method = "cooking", width = 1, items = {node}})
print(dump(product))
user:get_inventory():add_item("main", (product))
return itemstack
end

qwrwed wrote:I have prevented more than one dug item from being added to the inventory (although the is a problem I will solve completely in the future) but is there a way to get the amount of drops? I have used this:

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Code: Select all

after_use = function(itemstack, user, node, digparams)
        local drops = table.concat(minetest.get_node_drops(node.name, "default:pick_mese"))
        local product = minetest.get_craft_result({method = "cooking", width = 1, items = {drops}})
        local inv = user:get_inventory()
        print(product.name)
        inv:add_item("main", product.item)
        inv:remove_item("main", drops)
        return itemstack
    end,

It works perfectly when mining metals, but when mining clay, only 1 brick is added instead of 4. I have looked in doc/lua_api, but I didn't see anything for getting the amount of drops - how do I do this?

1. Using table.concat() on the list of ItemStacks returned by minetest.get_node_drops() will result in undefined behavior. It might be doing something right now, but note that the Lua 5.1 API only specifies the behavior of table.concat() when the elements are strings or numbers, not when they are references to tables or userdata (an ItemStack is one of those—not sure which). Fortunately, minetest.get_craft_result() takes a table whose 'items' property is an array of ItemStacks, so you shouldn't really have to do that table.concat() conversion anyway. You may want to iterate through the list of ItemStacks from minetest.get_node_drops() and deal with each individually, however, instead of just using the whole list.
2. Since the result of the minetest.get_craft_result() call has an ItemStack, I believe you should actually be calling "product.item:get_name()" rather than just using the expression "product.name" on it. Likewise, you should be able to get the count of the cooked product using "product.item:get_count()". However, since you are using "inv:add_item(..., product.item)" which takes a whole ItemStack as its second parameter anyway, I think that logic should already be handling the item count just fine....
3. Your call of "inv:remove_item(...)" will need to be dealt with in a way similar to how you will need to use ItemStacks for minetest.get_craft_result(), as I described above.
4. You'll probably want to test whether the stack given by minetest.get_craft_result() is empty (meaning there is no craft recipe for the inputs you are describing). As it is this will remove any drop that doesn't get cooked into anything, rather than leaving it unchanged.