Post your modding questions here

[D00Med]

I have a function advtrains.minAngleDiffRad in advtrains/helpers.lua. maybe this is helpful.
Returns how far to rotate from first angle in which direction to reach second angle
Link is in signature

Thanks, this improves it a lot. The problem still occurs a little, but it's not as common

[Nyarg]

A little question.
I need something like get_camera_pos() but nothing found.
Is there a simple way to get it ?

[kaeza]

A little question.
I need something like get_camera_pos() but nothing found.
Is there a simple way to get it ?

There's no access to camera, but you can get the player's position and add the eye offset:

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local pos = player:getpos()
pos.y = pos.y + 1.625


I don't recall if `player:get_eye_offset()` returns anything meaningful by default (i.e. if you don't explicitly set it in your code).

Getting third person camera position is possible by doing some maths with looking direction, but since there's no way to detect if a player is in third person view mode (AFAIK) it's kinda useless.

[googol]

Hi experts.
How i can get (pos) of the particles in time.
Is the some function for example?
minetest.get particle(id)
return:
pos - position of particle
meta - meta of particle
------------
P.S. If this is not. Please write the post in issues GitHub.
It is very necessary.
Thank.

[Byakuren]

Hi experts.
How i can get (pos) of the particles in time.
Is the some function for example?
minetest.get particle(id)
return:
pos - position of particle
meta - meta of particle
------------
P.S. If this is not. Please write the post in issues GitHub.
It is very necessary.
Thank.

The server does not keep track of particles (or their positions), and if you look at the specification of add_particle, you will notice that it does not return an id. If you want something you can keep track of the position of, I would use an entity.

What is your use case for getting the position of a particle? Maybe there is a better way that is already possible.

[googol]

Thank Byakuren.
I tried the "entity", and think you're right.

[Nyarg]

Oops I found SAO (new entity) haven't something like get_rotate(), only getyaw() present.
Is it right ?

[Krock]

Oops I found SAO (new entity) haven't something like get_rotate(), only getyaw() present.

There is the function get_yaw() for LuaEntities (mobs, dropped items, etc) that returns the rotation in radians, which represents the rotation of the entity. If you need it in degrees, multiply it with (180 / math.pi).
For players, this function is called get_look_horizontal().

[Nyarg]

There is the function get_yaw() for LuaEntities

Yes. But I mean something get_rotate3d() of course.
I need rotate entity in xyz, but see not a way for single entity.
Now I see only one way it use paired entity invisibleRoot+attachedVisibleWithRotation.

[DS-minetest]

There is the function get_yaw() for LuaEntities

Yes. But I mean something get_rotate3d() of course.
I need rotate entity in xyz, but see not a way for single entity.
Now I see only one way it use paired entity invisibleRoot+attachedVisibleWithRotation.

You don't need to attach an entity to set a bone pos. You can add a bone to the mesh in blender.

[Nyarg]

You can add a bone to the mesh in blender.

Thank for remind me about bones.
Have minetest default bone (something like "root") if I use visual = "cube" not "mesh" ?

[DS-minetest]

You can add a bone to the mesh in blender.

Thank for remind me about bones.
Have minetest default bone (something like "root") if I use visual = "cube" not "mesh" ?

I don't know but I don't think so, I never saw any documentation for this.

[Byakuren]

I thought all entity meshes had a root bone (maybe called ""?) so that you can attach things. Not sure though.

[BrunoMine]

How can I keep a node unchanged after a minetest.place_schematic method?
For example, "default:chest" can not be removed.

[orwell]

AFAIK, the root bone of any object is called "" (empty string)

[Wuzzy]

How do I make entities/objects non-pointable (like pointable=false for nodes) without changing the collision box?

[Nyarg]

I'm still fail again and again with tests to rotate entity. So I rephrase my question:
I want to pitch or to roll single entity, is somewhere worked example or mod ?
Quick search in forum and collection of mods give no result for set_bone_position().

[sofar]

https://github.com/minetest-mods/player ... t.lua#L111

[stu]

I might also point out that bone rotation is only possible with 'rigged' models exported as an animated format like b3d or directx.

[stu]

How do I make entities/objects non-pointable (like pointable=false for nodes) without changing the collision box?

AFAIK there is no other way to do that but there really should be.

[Nyarg]

wow something works at least now for mycube.x entity ) Thank you all ) but:
Does collision box inherit rotate of entity in roll and pitch via set_bone_position() ?

[Nyarg]

Next problem:
When I do set_bone_position() to root of assembled entities then child entity disappear.
Is it possible to rotate assembled entity ?

[Wuzzy]

I have gone crazy in trying to disable caves and dungeons for the mapgen at subgame-level.
I want to make a perfectly flat map without all the mapgen garbage floating around.
And it MUST be the “flat” mapgen because the user should be able to select it from the main menu.

I tried to clean minetest.conf, just to make sure it doesn't conflict.

I tried this:

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minetest.set_mapgen_setting("mg_flags", "nocaves,nodungeons,nodecorations")


But it did nothing. When I create a new flat world, caves, dungeons and decorations still appear.
The file “map_meta.txt” showed the default flags instead of the flags I chose.

What's the point of minetest.set_mapgen_setting if I can't even use it to set the most basic mapgen flags? :-(
Yes, I'm in a bad mood.

EDIT:
I also tried editing the subgame-level minetest.conf.
When I add “mg_flags=nocaves,nodungeons,nodecorations”, it works for “flat”.
BUT this also removes all caves and decorations from the other mapgens, so having a minetest.conf at subgame level is also not helping. :O

[TumeniNodes]

In my subgame, I used the default mod folder, and just used the mapgen from there, to set up the mapgen the way I prefer...

I only mention this as I notice MC2 does not have a "default" mod folder.
So, maybe if you add the MT default mod folder and strip out all you do not need and just keep the mapgen.lua in it and set it to your preferences?

nevermind, sorry... I completely forgot you use "core".... rather than default. and you have mapgen in there...
Please disregard my ignorance

in the code you used above, I think you may need to specify mg_flat, if you only want those flags to effect mg flat?

[EthanD57]

I'm trying to make a bunch of status effects similar to Minecraft but I'm having trouble. Please answer whatever questions you can.

How do I stop a player from taking damage in certain blocks, e.g. fire?

How do I reduce a player's fall damage?

[EthanD57]

-- Already Answered --

Along with my other questions (see post above) I have a new one: How would I give a player "night vision", allowing them to see everything as if in daylight?

[Nyarg]

why entity have setyaw() but haven't setroll() and setpitch() ?
[answered IRC] <Calinou> entities have no pitch and roll in Minetest

so set_bone_position() works for single entity but attached entity seems immediatelly detach from root entity
is there a way to rotate assembled entity not even in horizont ?

[azekill_DIABLO]

set troll? :D

[Nyarg]

set troll? :D

))) minetest trolls me )
Now I am stuck about rotate ship maked via attached entities and have no idea (quick rotate huge object) about any way it reach )

[yzelast]

Hey guys, i have a little question: There's a way to get how the node is rotated?

What a want to do is basically:

• get node's rotation
• set the pos with air
• placa another node with the same rotation