How to access a mods functions

[Sane]

Edit: using Minetest 0.4.9 on an Ubuntu system.

Hi there,

how do I access the functions of a mod?
For example the tube_item function of pipeworks.

My mod, at this point, simply consists out of these 2 files.

depends.txt:

Your phone or window isn't wide enough to display the code box. If it's a phone, try rotating it to landscape mode.

Code: Select all

default
pipeworks


init.lua:

Your phone or window isn't wide enough to display the code box. If it's a phone, try rotating it to landscape mode.

Code: Select all

print("pipeworks is: "..dump(pipeworks))


this prints:

pipeworks is: nil

So, where do I get that pipeworks object from?

Thanks in advance.

[Krock]

https://github.com/minetest/minetest/bl ... i.txt#L116
https://github.com/VanessaE/pipeworks/b ... rt.lua#L32

Your phone or window isn't wide enough to display the code box. If it's a phone, try rotating it to landscape mode.

Code: Select all

if minetest.get_modpath("pipeworks") ~= nil then
   --pipeworks exists
   pipeworks.tube_item(pos, item)
end


pipeworks must be enabled in the world, else it won't work.

EDIT: Oh, welcome to the minetest forums!

[Sane]

pipeworks must be enabled in the world, else it won't work.

EDIT: Oh, welcome to the minetest forums!

Thank you for the welcome.

pipeworks is enabled.
I've changed the code to

Your phone or window isn't wide enough to display the code box. If it's a phone, try rotating it to landscape mode.

Code: Select all

if minetest.get_modpath("pipeworks") ~= nil then
   print("pipework exists")
   if pipework == nil then
      print("but is nil")
   else
      print("and is not nil")
   end
else
   print("pipework does not exists")
end


Output is now:

Your phone or window isn't wide enough to display the code box. If it's a phone, try rotating it to landscape mode.

Code: Select all

pipework exists
but is nil


[Krock]

Your phone or window isn't wide enough to display the code box. If it's a phone, try rotating it to landscape mode.

Code: Select all

if pipework == nil then

You made a typo there, it's actually "pipeworks"

EDIT: The

Your phone or window isn't wide enough to display the code box. If it's a phone, try rotating it to landscape mode.

Code: Select all

if minetest.get_modpath("pipeworks") then

I gave you, is useless in this case because pipeworks is in depends.txt

[Sane]

Your phone or window isn't wide enough to display the code box. If it's a phone, try rotating it to landscape mode.

Code: Select all

if pipework == nil then

You made a typo there, it's actually "pipeworks"

Changed the code to:

Your phone or window isn't wide enough to display the code box. If it's a phone, try rotating it to landscape mode.

Code: Select all

if minetest.get_modpath("pipeworks") ~= nil then
   print("pipeworks exists")
   if pipeworks == nil then
      print("but is nil")
   else
      print("and is not nil")
   end
else
   print("pipeworks exists")
end
print("pipeworks is: "..dump(pipeworks))

Output is still:

Your phone or window isn't wide enough to display the code box. If it's a phone, try rotating it to landscape mode.

Code: Select all

pipeworks exists
but is nil
pipeworks is: nil


[Sane]

Actually I've grabbed the code I am fiddling with from
technic/machines/register/common.lua:

Your phone or window isn't wide enough to display the code box. If it's a phone, try rotating it to landscape mode.

Code: Select all

function technic.send_items(pos, x_velocity, z_velocity)
   -- Send items on their way in the pipe system.
   local meta = minetest.get_meta(pos)
   local inv = meta:get_inventory()
   local i = 0
   for _, stack in ipairs(inv:get_list("dst")) do
      i = i + 1
      if stack then
         local item0 = stack:to_table()
         if item0 then
            item0["count"] = "1"
            
            -- Sane -> this fails
            local item1 = pipeworks.tube_item({x=pos.x, y=pos.y, z=pos.z}, item0)
            item1:get_luaentity().start_pos = {x=pos.x, y=pos.y, z=pos.z}
            item1:setvelocity({x=x_velocity, y=0, z=z_velocity})
            item1:setacceleration({x=0, y=0, z=0})
            stack:take_item(1)
            inv:set_stack("dst", i, stack)
            return
         end
      end
   end
end


[Sane]

Updating to mt 0.4.10 solved the problem.