Post your modding questions here

[BrunoMine]

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

I use registre_on_generated but the não not work.

[Don]

register_on_generated should work. Maybe post your code and we can see if there is something you missed.

[BrunoMine]

Here it is

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Code: Select all

minetest.register_on_generated(function(minp, maxp, seed)
   --[[
      places a special tree that I created. (near jungles)
   ]]
   
   -- verifies that this is the desired ground track
   if maxp.y < 10 then return end
   if minp.y > 90 then return end
   
   -- lead map in memory (is this necessary?)
   minetest.get_voxel_manip():read_from_map(minp, mapx)
   
   -- search jungletree
   if minetest.find_node_near({x=minp.x+40, y=minp.y+40, z=minp.y+40}, 40, {"default:jungletree"}) == nil then
      minetest.chat_send_all(dump(minetest.get_node({x=minp.x+40, y=minp.y+40, z=minp.y+40})))
      return
   end
   
   -- picks up a block of dirt with grass
   local pos = minetest.find_node_near({x=minp.x+40, y=minp.y+40, z=minp.y+40}, 40, {"default:dirt_with_grass"})
   if pos == nil then return end
   
   -- tree
   sovagxas.montar_arvore(pos)
   
   minetest.chat_send_all("My tree mounted")
   
end)


Problem:
in

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Code: Select all

minetest.chat_send_all(dump(minetest.get_node({x=minp.x+40, y=minp.y+40, z=minp.y+40})))

name == "ignore" always
I'll refine this code later but I want to solve this problem now.

[Don]

Did you try to add minetest.after? Give it a second to make sure it loaded. Then it might find air. Else you could look for air and ignore. I had to do that in one of my mods to make sure it got the right count after using minetest.forceload_block.

[BrunoMine]

Here my code is

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Code: Select all

local verify_area = function(minp, maxp)

   -- load blocks
   minetest.get_voxel_manip():read_from_map({x=minp.x+40, y=minp.y+40, z=minp.y+40}, {x=minp.x+40, y=minp.y+40, z=minp.y+40})
   
   -- verify
   minetest.chat_send_all(dump(minetest.get_node({x=minp.x+40, y=minp.y+40, z=minp.y+40})))

end

minetest.register_on_generated(function(minp, maxp, seed)
   
   if maxp.y < 10 then return end
   if minp.y > 90 then return end
   
   minetest.after(4, verify_area, minp, maxp)
   
end)


it never returns anything other than blocks ignored

[Hybrid Dog]

BrunoMine, use the vector helpers, it's shorter and no typos happen.
l think you did a typo: you wrote z=minp.y+40 instead of z=minp.z+40

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    local verify_area = function(minp, maxp)

       -- load blocks
       local lp = vector.add(minp, 40)
       minetest.get_voxel_manip():read_from_map(lp, lp)
       
       -- verify
       minetest.chat_send_all(dump(minetest.get_node(lp)))

    end

    minetest.register_on_generated(function(minp, maxp, seed)
       
       if maxp.y < 10 then return end
       if minp.y > 90 then return end
       
       minetest.after(4, verify_area, minp, maxp)
       
    end)


[BrunoMine]

Again the problem was a small mistake for lack of attention.
Thank you for your help. The mod code is working correctly.

[TumeniNodes]

just a quick, kinda doppie question.
I have a mod which just adds some new building blocks, do I need to submit it somewhere before I can post it up for others to download? Or is it just a free-for-all sort of deal?

[KCoombes]

I believe your upload goes in WIP mods first, then once it's approved by forum mods, you request it be moved to Mod Releases.

[TumeniNodes]

that's what I thought, regarding the wip mods section but was unsure. Thank you

[drkwv]

What is the best way for mod to store it's data? I need to store some data between player logins and it would be good if I could also sort it and do other kind of stuff that modern databases do. Can I access sqlite API through Lua? What would be the best decision to store a mod data?

[Don]

just a quick, kinda doppie question.
I have a mod which just adds some new building blocks, do I need to submit it somewhere before I can post it up for others to download? Or is it just a free-for-all sort of deal?

You post your mod in the wip section. When you feel it is ready for release you submit a request to Topic move request.
viewtopic.php?f=11&t=10418

As long as it follows the guidelines then it will be moved.
viewtopic.php?f=11&t=1271

[TumeniNodes]

Thanks Don

[TumeniNodes]

I notice that the http://unlicense.org/ is not mentioned in the guidelines section. Is there any opposition to my using it? I want to make sure so as not to create any problems.
I have also always used CC share alike non-commercial for artwork/images I create. Is this an issue here? I only ask as this too is not mentioned.
I have always released my artwork either under no license with all rights waved, or non-commercial as I do not care for the thought of others making profit from my work (which has happened in the past), which is why I switched to non-commercial.
As far as using any license in my opinion, any which are not legally accredited or recognized are of no legitimate use.
But I just want to make sure I am really clear on the issue, because I do not wish to make people have to keep coming back to tell me I need to change something, I don't like being a p.i.t.a. for people.
So lease let me know if those 2 licenses are fine or not to use, so I can be clear on it since I just put up my first contribution. I'd like to make the needed changes now and then know for any future work I add.
Thank you

PS, this is not to start a license war, I am simply looking to have my question answered

[qwertymine3]

I notice that the http://unlicense.org/ is not mentioned in the guidelines section. Is there any opposition to my using it? I want to make sure so as not to create any problems.

I have also always used CC share alike non-commercial for artwork/images I create. Is this an issue here? I only ask as this too is not mentioned.

Both of those are sane licenses to choose, so I don't see any reason for there to be issues with using those licenses here.

AFAIK, the main rules on licenses are these.

Disallowed licenses

Any mod that disallows derivatives cannot be published on this forum. These include CC NoDerivs and pretty much any closed source licenses.

More about licenses

If a mod is to be included in the main game, it's code needs to be relicensable under LGPLv2.1+, and textures/sounds under CC BY-SA 3.0 Unported, as the main game is released under those licenses. ...

... Public domain is not allowed as a license because jurisdiction about what "public domain" means varies between countries.

Any examples given are just for reference.

[TumeniNodes]

I see where I got confused now, reading it again...
The section which mentions: "If a mod is to be included in the main game, it's code needs to be relicensable under LGPLv2.1+, and textures/sounds under CC BY-SA 3.0 Unported, as the main game is released under those licenses."
for some reason I did not notice the part about if the mod is to be included in the main game. My bad, I'm sorry.

I have not been ontop of my game lately and have been misreading and misunderstanding things.

[rubenwardy]

I see where I got confused now, reading it again...
The section which mentions: "If a mod is to be included in the main game, it's code needs to be relicensable under LGPLv2.1+, and textures/sounds under CC BY-SA 3.0 Unported, as the main game is released under those licenses."
for some reason I did not notice the part about if the mod is to be included in the main game. My bad, I'm sorry.

I have not been ontop of my game lately and have been misreading and misunderstanding things.

Notice the re in relicensable. If it's legal to relicense as LGPLv2.1+, then it is compatible for inclusion into minetest game. So CC0 and WTFPL mods can be added to Minetest Game.

[TumeniNodes]

Yes, I notice that now.
When I had initially read it, my brain registered it as, for a mod to be able to be used in Minetest in any way, etc....
As I stated, I've had some slight medical issues over the last year and it tends to make my brain not up to par. So I have been misreading and misunderstanding some things lately.
I do apologize for any times it has or may happen in the future, not really much I can do about it.
I honestly don't imagine any of the mods I create going into the Minetest game itself, as I will most likely only be creating mods which add various blocks for building / architecture, so obviously this is not something I need to be overly concerned about.

[Hybrid Dog]

How can l set the pitch of a mesh object?

[DontTouchTheClock]

Topic: Collision box, privilege user, movement.
Reason: I want to refresh my modding skills.
More info: I want to make an elevator, I can make the nodebox, texture it. However when trying to use it(getting the player to enter the node and ride it like a boat(without turning.)

[Passante]

Topic
What does minetest.register_alias() do ?
How to manage compatibility between mods with same recipe ?

Reason
I want to add compatibility between mt_foods mod and candy mod : they've got sugar in common with ~same recipe.

More Info
candy mod says for 1 papyrus in the grid I get 4 candy:sugar.
mtfoods mod says for 1 papyrus in the grid I get 3 mtfoods:sugar.

I've tried adding minetest.register_alias("candy:sugar", "mtfoods:sugar") in the candy mod init.lua
Craft guide indicates both recipes for both sugar items, but mtfoods:sugar doesn't let me craft candies.

Minetest 0.4.13 32b official
Candy 1.0
Mtfoods 1.5

[DontTouchTheClock]

With minetest.register_alias() you can add another name for a block:
For example "default:wood" is also known as "wood". This is handy in the world-edit commands and the /give command. to do this in a mod you would do:

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 minetest.register_alias("wood", "default:wood")

[Passante]

With minetest.register_alias() you can add another name for a block:
For example "default:wood" is also known as "wood". This is handy in the world-edit commands and the /give command. to do this in a mod you would do:

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 minetest.register_alias("wood", "default:wood")

Well I did try

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minetest.register_alias("candy:sugar", "mtfoods:sugar")

and

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minetest.register_alias("mtfoods:sugar", "candy:sugar")

But in either way I can make a candy with mtfoods:sugar.
I thought, the method would "fuse" the 2 items and that, as a consequence, I would be able to make candies with any sugar, both being recognized by both mods, but it isn't the case. I guess I misunderstand the method.

[rubenwardy]

It doesn't work if both nodes are registered. Look at how Food does it.

In your recipes that use candy:sugar, replace it with group:sugar.
Then if mtfoods is not installed register candy:sugar with groups = { food_sugar=1}
If mtfoods is installed, don't register candy:sugar, instead add the group to the mtfood:sugar.

Here is some example code. You'll need to optionally depend on mtfoods.

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if minetest.get_modpath("mtfood") then
    minetest.override_item("mtfood:sugar", {
        groups = { food_sugar = 1 }
    })
else
    minetest.register_craftitem("candy:sugar", {
        ---       
        groups = { food_sugar = 1 }
        ---
    })

    minetest.register_craft({
        output = "candy:sugar",
        recipe = {}
    })
end

minetest.register_craft({
    output = "candy:bar",
    recipe = {
        {"group:food_sugar"}
    }
})


untested

The better solution is to depend on food, and use its very good support library (food doesn't come with food by default, it's food_basic that adds some food)

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food.support("sugar", {
   "jkfarming:sugar",
   "bushes:sugar",
        "mtfoods:sugar"
})

food.module("sugar", function()
   minetest.register_craftitem("food:sugar", {
      description = "Sugar",
      inventory_image = "food_sugar.png",
      groups = {food_sugar=1}
   })

   minetest.register_craft({
      output = "food:sugar 20",
      recipe = {
         {"default:papyrus"},
      }
   })
end, true)

food.module("cake_carrot", function()
   minetest.register_node(":food:cake_carrot", {
      description = S("Carrot Cake"),
      on_use = food.item_eat(4),
      groups={food=3,crumbly=3},
      walkable = false,
      sunlight_propagates = true,
      tiles = {
         "food_cake_carrot_texture.png",
         "food_cake_carrot_texture.png",
         "food_cake_carrot_texture_side.png",
         "food_cake_carrot_texture_side.png",
         "food_cake_carrot_texture_side.png",
         "food_cake_carrot_texture_side.png"
      },
      drawtype="nodebox",
      paramtype = "light",
      node_box = food.cake_box
   })
   food.craft({
      type = "cooking",
      output = "food:cake_carrot",
      recipe = "food:cakemix_carrot",
      cooktime = 10,
   })
   minetest.register_craftitem(":food:cakemix_carrot",{
      description = S("Carrot Cake Mix"),
      inventory_image = "food_cakemix_carrot.png",
   })
   food.craft({
      output = "food:cakemix_carrot",
      recipe = {
         {"","group:food_carrot",""},
         {"group:food_flour","group:food_sugar","group:food_egg"},
      }
   })
end)


food.module basically allows you to package up ingrediants and food in one bundle, it makes it more organised.

[Passante]

Thanks, going to try that.

EDIT : Saw your edit, trying that. I'm already using your food mod too ^^

I'm not a very trained lua user yet, I was just trying to make some easy tricks on my mods to make them work better together, so I'm very grateful for your help.

[bobomb]

I stumbled on this older version of the lua api txt file and found what appears to be a way to create your own settings files. https://github.com/minetest/minetest/bl ... .txt#L3063
the usage is not explained though.
I tried:
<pre>
testconf = Setting(path_and_file_name)
</pre>
but then when I try to do things like testconf.write() or testconf.set("foo", "bar") i get errors and anyway the current documentation shows that the methods should be testconf.setting_write(), etc

just wondering if there is a way to make our own per-world conf files?

[rubenwardy]

You probably mean to use a colon, ie conf:write() instead of conf.write()

conf:write() is short for conf.write(conf)

[bobomb]

oh yeah of course. that all works now. where is this documented? the new lua api txt file doesn't mention this...

[kaeza]

oh yeah of course. that all works now. where is this documented? the new lua api txt file doesn't mention this...

From Function Calls in the Lua manual:

The form

functioncall ::= prefixexp `:´ Name args

can be used to call "methods". A call v:name(args) is syntactic sugar for v.name(v,args), except that v is evaluated only once.

Emphasis mine.

[Hybrid Dog]

What is the meaning of evaluating v?