Luanti Forums

I have really noticed, its not me only saying this on discord, but experience on using Luanti on lowend mobile phones are really unlikeable, such as lag and freezing in game occurs frequently I don't doubt this. The main problem is that you're chasing too many "red herrings" (pieces of in...

The point of setting chat log level to warning is to see warnings. You then need to figure out how to fix these warnings, either by updating the mods or fixing the mods yourself. To understand some warnings and how to fix them, see https://docs.luanti.org/for-creators/warnings/#deprecation-warnings....

This should all be meta data instead of being crammed into a tiny integer. I don't think a proper solution is as simple, metadata still has much larger overhead than a single byte. But I do agree with the general notion. I think we will need a good API for "dense" metadata storage (essent...

It is still slow. I'm not aware of any concrete improvement plans. Ultimately this is sort of a fundamental limitation of Postgres. See https://www.sqlite.org/np1queryprob.html: In a client/server database, each SQL statement requires a message round-trip from the application to the database server ...

As Desour said, the documentation is wrong. The creative privilege is indeed not registered in the engine (see builtin/game/privileges.lua for a correct list of engine privileges) but rather in MTG (see here ). The only engine feature is core.is_creative_enabled , the default implementation of which...

Am I the only one who finds Lua a pain to work with when building larger mods and games? It depends. Lua suffers from being a scripting language; it doesn't offer you the amenities of a more static language, e.g. static typing. You need to make up for this with discipline; the language doesn't forc...

It is sort of possible to keep track of what formspec the player could be looking at. By parsing that formspec, you can check which inventory lists it should give access to. This is what I did in https://content.minetest.net/packages/LMD/anti_exploit (disclaimer: I haven't tested this in a while). B...

Your stack trace makes no sense. If I check out git tag 5.11.0 and look at builtin/mainmenu/async_event.lua:26 , that's an end , not a function call. And the core.do_async_callback call I can see in that file (on line 21) clearly passes a function, not a string as the first argument (looking at the ...

This is https://github.com/luanti-org/luanti/issues/15883

That is a local variable (effectively it'll end up as an upvalue). You generally can not change upvalues that you do not have access to, which are not in scope for you (there is a way to do this using the debug library actually, but it's hacky and not allowed for security reasons). You should ask th...

There is the movement_gravity setting which you can set to 0, but I doubt that everything will work with this. I believe engine-provided entities (falling nodes, builtin items) will use this setting (though: zero gravity for falling nodes doesn't really make sense); mods may or may not. Liquids do n...

Luanti supports playing animations backwards. IIRC you just use a negative animation speed. Maybe you need to swap x and y in the frame range too; try it and see.

This is not a Luanti bug, but a mod / game bug. Update your mods or games. If it still doesn't work, report the issue, if it hasn't been reported already.

For technical details concerning the issue see https://appgurueu.github.io/2025/02/20/ ... bones.html.

The number is 7.0557510465246e-312 - this is so close to zero (an integer number) that it shouldn't even be representable in Lua numbers. That number is very well representable by a subnormal 64-bit float: > 7.0557510465246e-312 7.0557510465246e-312 > ("%q"):format(7.0557510465246e-312) 0...

On the contents of the obj file. You can apply it line by line.

You are using mod storage, but you're not leveraging the main benefit really: That it is an efficient key-value store. You're just using mod storage as sort of a directory of JSON files. And that also means you end up serializing at intervals (which from a quick glance led me to falsely believe that...

I'm not referring to using a database directly - that would make your mod harder to set up by introducing a dependency on a Lua database library.

I am referring to mod storage, which provides a simple key-value store, which is backed by a database behind the scenes.

I just wanted to ask: Have you considered Luanti's built in mod storage? That offers some features which are somewhat hard to replicate otherwise: Consistency (with the rest of the world) becomes Luanti's problem (which it doesn't solve very well, but at least many things are saved on the same map s...

As far as simple vertex transformations go, modlib might be overkill: obj is so remarkably simple that something like a simple :gsub("v%s+(%S+)%s+(%S+)%s+(%S+)", function(x, y, z) return ("v %f %f %f"):format(x, y - 0.5, z) end) might very well do the trick. I tried gltf (which a...

The rename is orthogonal to our ongoing but for practical reasons not absolute commitment to backwards compatibility. Minetest had the explicit goal of being a general voxel game platform long before the name was updated to reflect this. This is not a "developer identity crisis" as you ins...

Hi, what you're seeing is https://github.com/luanti-org/luanti/issues/15692. There should be a workaround in Mineclonia already: https://codeberg.org/mineclonia/mineclonia/pulls/2918, but it seems to not have reached ContentDB yet: https://content.luanti.org/packages/ryvnf/mineclonia/. It should be ...

solved (on a proprietary platform which must not be named), these were bmp files disguised as pngs by file extension. simply converting them to png fixed the issue.

One interesting non-highlight feature seems to be the new weight attribute for biomes. I assume this is about making a particular Voronoi cell larger in the biome Voronoi diagram, thus giving a bit more control over the size of biomes compared to the others. That's one use case it enables, yes. Acc...

The documentation on custom fonts is a bit unclear because it's unclear what the naming convention is. Is "regular" the full name, a prefix, suffix, etc.? Does the mod name prefix rule still apply here? I genuinely don't know how it is unclear, because the documentation states: The stems ...

Let me clarify some things. This was not a hack; the serverlist was not compromised at any point. There are two (three) known problems (by design) which enabled this "attack": 1. New servers can be announced by anyone at any time. This alone is enough to spam fake servers with fake player ...