Post your modding questions here

[Byakuren]

Except you probably want to make sound a local var instead.

[rubenwardy]

You should rarely use global variables as they will be present in other mods. You should only create global variables with the same name as your mod.

[Hybrid Dog]

VaE adds a vector.dot and people may think it's added by builtin, so they don't notice that their mod crashes if pipeworks isn't installed

[iangp]

You should rarely use global variables as they will be present in other mods. You should only create global variables with the same name as your mod.

hmm This is a convention ? I understand the fact, avoid using global vars, because they can conflict with other mods but if I use something like that, would it be ok?:
nameofmymod_sound = 'no'
or local sound = 'no' also works inside the func?

another Q: This is documented on wiki or on somewhere?, I'm just can't remember...
That was just a "speed coding"...
Reading this I think I should review some code on my mods... XD

[rubenwardy]

It's just good practice not to. Instead of nameofmymod_sound you should do nameofmymod.sound or a local variable.
Global variables are the best way to communicate between files. The alternative is passing parameters between files is a bit weird.

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

-- You can do this if you want want to make a global variable,
-- but I usually use nameofmod.sound as I prefer that personally.
local sound = "no"
dofile(minetest.get_modpath() .. "/other.lua", sound)


This doesn't seem to be mentioned anyway, except a little bit by me here: http://rubenwardy.com/minetest_modding_ ... and-global

[iangp]

Well,I finally bookmarked your modding book Sir Ruben Wardy XD, It's a very useful reference material.
So, at end the code seems like that:

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

local sound = 'no'
minetest.register_tool("headphones:1headphones", {
   description = "Headphones Test Song",
   inventory_image = "testh.bmp",

   on_use = function()
        if sound == 'no' then
            sound = minetest.sound_play("test") --keep the "reference" of the sound
        else
            minestes.sound_stop(sound) --stop the sound
            sound = 'no'
       end
   end,
})


[MineYoshi]

I think i am a little dumb, or i don't know the "enough" yet!

Anyways THX!

[iangp]

I think i am a little dumb, or i don't know the "enough" yet!

Anyways THX!

Not really, you just need practice.
make little challenges to yourself:
exercises, big projects, read some good book/e-book (not only about Lua),
It comes along with time, so be patient.

And of course think out the box :D
creativity helps to find a nicer way to solve a problem.

[Don]

I think i am a little dumb, or i don't know the "enough" yet!

Anyways THX!

Not really, you just need practice.
make little challenges to yourself:
exercises, big projects, read some good book/e-book (not only about Lua),
It comes along with time, so be patient.

And of course think out the box :D
creativity helps to find a nicer way to solve a problem.

I agree! I have been slowly learning. I still have a lot more to learn. Every challenge I give myself makes me have a little more knowledge. Keep trying.

[MineYoshi]

I think i am a little dumb, or i don't know the "enough" yet!

Anyways THX!

Not really, you just need practice.
make little challenges to yourself:
exercises, big projects, read some good book/e-book (not only about Lua),
It comes along with time, so be patient.

And of course think out the box :D
creativity helps to find a nicer way to solve a problem.

I agree! I have been slowly learning. I still have a lot more to learn. Every challenge I give myself makes me have a little more knowledge. Keep trying.

THX for motivation i will try to be better!

=D

[Don]

Remember that failing is much better than not trying at all. Some of the best things in life are the result of failures.

[MineYoshi]

Good advice...

Many people said that to me too...

[BrunoMine]

How can I check each letter in a string?
How can I check the amount of characters in a string?
I want to create a verification loop of characters in a string.

[rubenwardy]

For length: #str
For character: str.sub(i, 1)

[Foghrye4]

How i can hook up on existing player inventory functions like in detached inventory functions "on_put","on_take","on_move" and so on? I mean a one, that are returned by "player:get_inventory()".

[mahmutelmas06]

i use formspecs to make a coffee machine but i need help
can i use itemgroup instead of an item ?

for exp instead of "flowers:tulip" i want to use group flowers

inv:contains_item("src", ItemStack("flowers:tulip"))

[Don]

i use formspecs to make a coffee machine but i need help
can i use itemgroup instead of an item ?

for exp instead of "flowers:tulip" i want to use group flowers

inv:contains_item("src", ItemStack("flowers:tulip"))

You can see how to do groups in this mod
viewtopic.php?f=11&t=11780

[Lucki]

How I can check, a player is death? If this happens I want to Drop an Item.
And sorry for my english because i´m from germany and 12 years old.
I want to make a "Capture the FlagMod"

[Don]

How I can check, a player is death? If this happens I want to Drop an Item.
And sorry for my english because i´m from germany and 12 years old.
I want to make a "Capture the FlagMod"

Use this

http://dev.minetest.net/minetest.register_on_dieplayer

[ynong123]

Question: How to post a topic?
Reason: I want to release a mod.

[kaeza]

For length: #str
For character: str.sub(i, 1)

Correction: `str:sub(i, i)`

Arguments are start and end pos, not start pos and length.

[kaeza]

[...]I want to create a verification loop of characters in a string.

Patterns are probably faster. For example, this code tells you if you have any non-alphanumeric chars:

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 str:find("[^A-Za-z0-9]") then
  error("please only use letters or digits")
end


Read more about patterns here.

Edit: If you need to know the position for whatever reason:

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

local start, fin, what = str:find("[^A-Za-z0-9]")
if start then
  error("character "..what.." (at position "..start..") is not allowed")
end


[jp]

This would be even simpler using :

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

str:find("%W")

[Don]

Question: How to post a topic?
Reason: I want to release a mod.

You release a mod in the wip mods section.
When the mod is complete and the forum topic is set up following the guidelines then you request that your mod gets moved to releases.

[MineYoshi]

A question!

How make when i use an item send a message to the player who have it?

It's for a very big project, it's an easter egg!

[Hybrid Dog]

http://dev.minetest.net/minetest.register_node#on_use

minetest.chat_send_player(player:get_player_name(), "some text")

[MineYoshi]

how to make, when i click a chest of one space(left click) with a craft_item, drop the item in the chest?

[Don]

how to make, when i click a chest of one space(left click) with a craft_item, drop the item in the chest?

Use on_use.

[BrunoMine]

How can I place an item in a biome.
For example: I want to appear in a chest in a jungle forest.

I can not check the area next to jungle trees that have just been generated.

[Don]

How can I place an item in a biome.
For example: I want to appear in a chest in a jungle forest.

I can not check the area next to jungle trees that have just been generated.

Are you trying to do it when the map loads or could you use an abm or lbm to make it place?