FOSS gamedev and creative worlds

Hi, I'm new to minetest, and I'm trying to write my first mod. Basically, it's a trade machine mod where the player who places it sets up what he wants to trade and what to trade for, and fills the machine's stock. When another player right clicks on it, they should see a different formspec that only shows what's being traded and a button to perform the trade.

My question is this: How do I make a node show two different formspecs to two different players when they right click on it?

ultimatemuffin wrote:Hi, I'm new to minetest, and I'm trying to write my first mod. Basically, it's a trade machine mod where the player who places it sets up what he wants to trade and what to trade for, and fills the machine's stock. When another player right clicks on it, they should see a different formspec that only shows what's being traded and a button to perform the trade.

My question is this: How do I make a node show two different formspecs to two different players when they right click on it?

Instead of using the node's metadata formspec like a chest does, you'll want to use a callback function (e.g. on_rightclick) to call minetest.show_formspec. That way you can vary the formspec each time a player interacts with the node.

prestidigitator wrote:

ultimatemuffin wrote:Hi, I'm new to minetest, and I'm trying to write my first mod. Basically, it's a trade machine mod where the player who places it sets up what he wants to trade and what to trade for, and fills the machine's stock. When another player right clicks on it, they should see a different formspec that only shows what's being traded and a button to perform the trade.

My question is this: How do I make a node show two different formspecs to two different players when they right click on it?

Instead of using the node's metadata formspec like a chest does, you'll want to use a callback function (e.g. on_rightclick) to call minetest.show_formspec. That way you can vary the formspec each time a player interacts with the node.

Oh, I see. so then from the callback, how do I refer to the node's inventory when I create the formspec?
when I was calling it from the node's formspec I could just use current_name, but that won't work in the callback and I can't find documentation for the syntax for it.

eg: "list[current_name;sale_memory;1,2;3,3;]"..
What can I replace current_name with?


Edit: After scouring the source, I figured it out. The "inventory_location" part of a list formspec needs to be formatted as one of 5 specific formats:
switch(type){
case InventoryLocation::UNDEFINED:
os<<"undefined";
break;
case InventoryLocation::CURRENT_PLAYER:
os<<"current_player";
break;
case InventoryLocation::PLAYER:
os<<"player:"<<name;
break;
case InventoryLocation::NODEMETA:
os<<"nodemeta:"<<p.X<<","<<p.Y<<","<<p.Z;
break;
case InventoryLocation::DETACHED:
os<<"detached:"<<name;
break;
default:
assert(0);
}

so I just needed to put nodemeta:"..pos["x"]..","..pos["y"]..","..pos["z"].." and then everything was happy.

I also recommend putting this info in the dev wiki under the formspec section, I may take a look at doing it a bit later.

I was wondering if it is possible to invert a mouse or cover the players screen with an animated image.
After making a beer mod I wondered if you could invert the players mouse or do something which will affect the player if the drink too much.
If anyone know how to do this I will be more than happy.

Meany thanks

Ive tried downloading mods. Nothing is working for me. Heres my situation, I cant not afford anything for my brother for his birthday, and he loves minecraft. So I figured I will download minetest for him , at first he liked it but got easily bored due to nothing to do. I tried downloading mods for him but it just doesnt seem to work for me. I know I must be doing something wrong. I tried dowloading the PilzAdam mods and nothings working. SO can I please get step by step instructions. It would be greatly appreciated. :(

Hi HANNAHBOO,
1) download the mod
2) dezip the mod
3) rename the mod like the author of the mod says to you in his topic
4) move your folder renamed to your minetest/mods folder
5) Launch the game, select your server, click "configure", active your mod(just check the box on the top right of the window configure), launch the world => it's over

(EDIT : @philipbenr thank you for correction, and more details for HANNAHBOO ;))

The post above is a pretty good explanation, except the word server should be replaced with singleplayer world. servers already come with pre-enabled mods.



Image for reference. Ex: castle mod.

@Minetestforfun: It shouldn't be called a server, it should be called a world. Online servers don't allow client side mods.

Hi, I am trying to make a soft-protection mod that will make protected nodes harder to dig for other players, but not indestructible. Is there any way to dynamically change the dig times for a particular node?

How would one make a gas rise in the air? I was thinking of something like making water with the gravity inversed or that flows upward but I do not think that is possible.

jojoa1997 wrote:How would one make a gas rise in the air? I was thinking of something like making water with the gravity inversed or that flows upward but I do not think that is possible.

I don't know if that is possible, have you checked moonrealm's air or fake fire's smoke? II think those are close to accomplish your idea.

How wwould I make blocks move? (for custom mobs)

SAMIAMNOT wrote:How wwould I make blocks move? (for custom mobs)

I created a mod that adds block-mobs some time ago.
It is a change from pilzadam's simple mobs mod. You can find my mod here:
viewtopic.php?f=9&t=9472 and the code here: https://github.com/RHRhino/ccmobs
A mob can easily defined as block if you change the field "visual" from "mesh" to "cube" like here:
https://github.com/RHRhino/ccmobs/blob/ ... an_cat.lua

where is my error

*blushes when noticed a lack of context* I am trying to make a mod with all faces animated, the code I posted was the section of textures.(it works without the code but no texture) why does this code fail? is it bad syntax

Is there any way, how to make a mob flying without remaking API ? (I am using simple mobs)

AFAIK: it depends if the mob is a node or an entity
Entity: Yes
Node: No
I might be wrong but I might not

AMMOnym wrote:Is there any way, how to make a mob flying without remaking API ? (I am using simple mobs)

Simple mobs doesn't support flying animals. Only land animals. Last time I checked. You would need to edit the API.

rubenwardy wrote:

AMMOnym wrote:Is there any way, how to make a mob flying without remaking API ? (I am using simple mobs)

Simple mobs doesn't support flying animals. Only land animals. Last time I checked. You would need to edit the API.

Or change collision box :) Thanks

Block top has the original color from .png texture and sides have some filter applied. How do I make the side color to look like current original? I don't care how the top would look like, but want sides to be exact color of the top now.

Someone can tell me what is the better "weather mod" for minetest 0.4.10 (compatibility, stability, less performence use) ?

[weather] or [snowdrift] or an other weather mod ?

Snowdrift would be the better of the two, IMO. It is lighter weight than the other. (At least I think it is/was) I also think it is stable enough.

Does Snowdrift have rain too? I agree, weather doesn't always rain/snow, you can be playing for hours and have no weather...and be playing for minutes and get a blizzard.

Has anyone ever considered making a 'PickPocket' mod?

It would encourage players not to leave their accounts idle for too long a time....

I generally dislike features that force players onto the game.

I am not talking about players that dont come online often being pick pocketed, but players who leave their accounts online for a long time even when they are 'away from keyboard'...

If a mod such as the one I said was created it would prevent players from doing that, and allow other players to come online: on many servers the maximum user limit does not allow all the players who wish ,to come online at that point, to do so, something wish would become far more feasible if players did not leave there accounts online unnatended...

How to use "on_place" for spawn a node above my placed node ? I am noob and I tried to use something like ABM, but my minetest crashed. :( Please help. Thanks

AMMOnym wrote:spawn a node above my placed node

You can see init.lua in doors mod in vanilla minetest game.

Sometimes, in trees, i can pick a "golden apple", but, i can't do nothing with it...
Is it normal ? I can't eat it :(

Achilles wrote:Has anyone ever considered making a 'PickPocket' mod?

It would encourage players not to leave their accounts idle for too long a time....

wow thats a really good idea! could be fun to try and come up with some games with that

Does anyone know how to get current biome ID?
(e.g. biome ID in some point {x=x,z=z})
I've tried to cache biomes within on_generated but a loop through the get_mapgen_object("biomemap") slows down mapgen up to 20x times...

Any ideas?