Post your modding questions here

[ph8jPf9M]

how can i randomise or shuffle items in a chest?

[Hybrid Dog]

how can i randomise or shuffle items in a chest?

If it wasn't blocked, you could use
newlist = table.sort(list, function() return math.random(2) == 1 end)

[kaeza]

how can i randomise or shuffle items in a chest?

This may help you.

You can get the items as a list with the `get_list` method of inventories (look it up in `lua_api.txt`):

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local inv = get_inv_from_somewhere()
local list = inv:get_list("main")
-- Shuffle list here
inv:set_list("main", list)


[cx384]

How can I set and get a table for a node in meta data?
I know set_string(name, value) get_string(name) set_int(name, value) get_int(name) .
Is it possible to save a whole table in meta?
A table like that {"default:coal_lump", "default:sandstone", test, {"default:stone", "default:sandstone"}}

[Pyros]

I'm having a problem with my airplane mod: my version of the Wright Flyer!
(Okay, okay, I admit. I'm just editing Pavel_S's helicopter mod.)

However, I have an error:

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Failed to load and run script from /home/pyros/.minetest/wrightflyer/init.lua:
/usr/share/minetest/builtin/game/register.lua:97: attempt to index local ‘prototype’ (a nil value)
stack traceback:
/usr/share/minetest/builtin/game/register.lua:97 in function ‘register_entity’
/home/pyros/.minetest/mods/wrightflyer/init.lua:203: in main chunk
Check debug.txt for details.


Can anybody help?

EDIT: Sorry, cx384, for bumping in ahead of you. Oops.

[orwell]

How can I set and get a table for a node in meta data?
I know set_string(name, value) get_string(name) set_int(name, value) get_int(name) .
Is it possible to save a whole table in meta?
A table like that {"default:coal_lump", "default:sandstone", test, {"default:stone", "default:sandstone"}}

So, if I understand you right, you want to save a table as a single metadata key.
Metadata do not allow to save tables directly. Instead, you can serialize it (convert it into a string).
Save table:

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meta:set_string("your_key", minetest.serialize(your_table))

Retrieve table:

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your_table=minetest.deserialize(meta:get_string("your_key"))

[orwell]

I'm having a problem with my airplane mod: my version of the Wright Flyer!
(Okay, okay, I admit. I'm just editing Pavel_S's helicopter mod.)

However, I have an error:

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

Failed to load and run script from /home/pyros/.minetest/wrightflyer/init.lua:
/usr/share/minetest/builtin/game/register.lua:97: attempt to index local ‘prototype’ (a nil value)
stack traceback:
/usr/share/minetest/builtin/game/register.lua:97 in function ‘register_entity’
/home/pyros/.minetest/mods/wrightflyer/init.lua:203: in main chunk
Check debug.txt for details.


Can anybody help?

EDIT: Sorry, cx384, for bumping in ahead of you. Oops.

In your init.lua in line 203, you are calling minetest.register_entity, but the entity prototype you pass there is nil(not defined).
Look at the last line of the stacktrace.

[cx384]

Sorry, cx384, for bumping in ahead of you. Oops.

No problem.

How can I set and get a table for a node in meta data?
I know set_string(name, value) get_string(name) set_int(name, value) get_int(name) .
Is it possible to save a whole table in meta?
A table like that {"default:coal_lump", "default:sandstone", test, {"default:stone", "default:sandstone"}}

So, if I understand you right, you want to save a table as a single metadata key.
Metadata do not allow to save tables directly. Instead, you can serialize it (convert it into a string).
Save table:

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

meta:set_string("your_key", minetest.serialize(your_table))

Retrieve table:

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

your_table=minetest.deserialize(meta:get_string("your_key"))

Thank you very much!

[ABJ]

Will you release this mod?

[burli]

Can I change cloud height from a mod?

[ABJ]

Surely, what you really will want to ask is "can I change ANYTHING in minetest.conf from a mod?"

[azekill_DIABLO]

Can I change cloud height from a mod?

mmmh....may be hard... maybe you could make the mod write a setting in mt.conf but....

[orwell]

Isn't there a builtin command /set to set conf options?
Look in builtin/chatcommands.lua, you should find how to change settings

[KCoombes]

Ok, third time's a charm (I hope)

Here's my code (depends on crafter mod viewtopic.php?f=9&t=3465&hilit=crafter ):

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   on_punch = function(pos, node, puncher)
      local meta = minetest.get_meta(pos)
      local name = puncher:get_player_name()
      local inv = meta:get_inventory()
      local srclist = inv:get_list("src")
      local dstlist = inv:get_list("dst")
      local cooked = nil
      if srclist then
         cooked = crafter.get_craft_result({method = "churn", width = 3, items = srclist})
      end
            -- check if churn is ready to operate
      if inv:is_empty("src") then
         minetest.chat_send_player(name,"Churn is empty!")
         elseif not inv:room_for_item("dst",cooked.item) then
         minetest.chat_send_player(name,"Churn is full!")
      else
      -- this is the actual working function of the churn
               -- Put result in "dst" list
         inv:add_item(dstlist, cooked)
               -- take stuff from "src" list
         inv:remove_item(srclist, 1)
      end
   end,

The unfortunate result of this is a crash to desktop, with debug file showing only:

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2016-08-25 11:41:35: INFO[Main]: Started digging
2016-08-25 11:41:35: VERBOSE[Server]: TOSERVER_INTERACT: action=0, item=2, pointed=[node under=5,5,32 above=6,5,32]
2016-08-25 11:41:35: VERBOSE[Main]: OpenALSoundManager::maintain(): 0 playing sounds, 58 sound names loaded
2016-08-25 11:41:36: INFO[Main]: Left button released (stopped digging)

[orwell]

remove_item(listname, stack)

You see the name in there?

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inv:add_item("dst", cooked)
inv:remove_item("src", 1)


should be the right way to do it.

No problem, anybody makes mistakes...

[KCoombes]

remove_item(listname, stack)

You see the name in there?

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inv:add_item("dst", cooked)
inv:remove_item("src", 1)


should be the right way to do it.

No problem, anybody makes mistakes...

See, I knew it was something so simple I'd kick myself - thanks a bunch!

[ABJ]

Is it possible to change the playermodel and ground collision model?

[orwell]

It is possible somehow, but I don't know how exactly. Look into 3d-armor, they do it.

I asked this question some time ago:
How do I export an animated model from Blender so that I can use it in Minetest? Which options to set and what to export?

[D00Med]

It is possible to change the player model, I don't know about the collision.
Have a look at player.lua in the default mod of minetest_game

[kaeza]

Is it possible to change the playermodel and ground collision model?

Player model is possible, via use of the Player API (requires `default` mod).

The collision box is editable for other entities, but hardcoded for the player. I'm pretty sure there are pull requests/issues requesting this functionality, but too lazy to search for them.

HTH

[azekill_DIABLO]

Is it possible to change the playermodel and ground collision model?

Player model is possible, via use of the Player API (requires `default` mod).

The collision box is editable for other entities, but hardcoded for the player. I'm pretty sure there are pull requests/issues requesting this functionality, but too lazy to search for them.

HTH

yes they are some pull request

[burli]

What is the maximum lenght for footstep sounds?

[azekill_DIABLO]

IDK.
very long i think

[ph8jPf9M]

how can i make a mod that when i right click the bed at night it only lets me sleep if i answer beds quiz question correctly? Perhaps with formspecs?

[ABJ]

Similar things have already been done. AFAIK IIRC the "if" keyword is what you want to look into here.

[DS-minetest]

is there a way to get the mouse scrolling?

[AnxiousInfusion]

Losing my mind a little... I have a mod that functions well when I manually substitute the playername "singleplayer" but cannot get it to acquire the playername of an item user.

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minetest.register_craftitem.....
.....
   on_use = function(user)
   minetest.chat_send_all(tostring(user))
   my_function(user)
   end

(I've condensed this to the relevant bits for example)

Trying to use user:get_player_name() crashes out with nil value and chat_send_all reports the value as 0x41da..... and get_player_name works so well in another mod I've authored.

[D00Med]

have you tried using 'placer' instead of 'user'? That seems to work for me sometimes, but I don't really know.

[taikedz]

You are specifying the arguments in the on_use wrong

https://github.com/minetest/minetest/bl ... .txt#L3566

This should work:

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   on_use = function(itemstack, user, pointed_thing)
   minetest.chat_send_all(user:get_player_name() )
   my_function(user)
   end


[AnxiousInfusion]

my_function still seems to be receiving userdata when it's expecting a string. I'll have to dissect this line by line.

Edit: So I'm kind of an idiot. "player" apparently needs to be used to refer to the player when defining a function parameter where I was trying to use "user".