Post your modding questions here

[Sokomine]

That only works when standing in the node. I haven't found any workaround.

You might use an abm to replace the air around your node with special air that does the damage. Or let the player live on :-)

[Novacain]

is there an easy way to add a second recipe for crafting something?
I have multiple versions of the same block (different colors) and several of those blocks. what I have is this:

-W,-B,-G,-O are represtitive of colors. they craft like this;
A-W->B-W->C-W->D-W
A-W->A-B/A-O/A-G
B-W->B-B/B-O/B-G
C-W->C-B/C-O/C-G
D-W->D-B/D-O/D-G

I wanna add support so this can be included:
A-B->B-B->C-B->D-B
A-O->B-O->C-O->D-O
A-G->B-G->C-G->D-G

hope you can understand this, and help. my main question is whether I need to create another class (if that's what they are called in Lua) or whether it can be incorperated into the current class.

the reason why is cause I will have over 32 variations of this node, and I don't want to create that much additional code if it isn't neccesary

[DeepGaze]

is there a way to write a code to:
player places block A and then block B
player hits block A
block A places block C
Block B turns into a teleport to Block C
Block C turns into a teleport to Block B
player hits block A
Block C is destroyed
Block B stops teleport function

any ideas (Stupid in the way of modding)

[Sokomine]

Is there an easy way to add a second recipe for crafting something?
I have multiple versions of the same block (different colors) and several of those blocks. what I have is this:

If you have diffrent colors, please try to stick to the naming schem wool uses (or, alternatively, unifieddyes) so that your mod may be supported by my colormachine mod. That might also help you with easier coloring.

I wanna add support so this can be included:
A-B->B-B->C-B->D-B
A-O->B-O->C-O->D-O
A-G->B-G->C-G->D-G

There's no direct way for that. You might create a table with all the block names (a simple list) and let a for loop iterate over it so that you basicly craft list[ i ] -> list[ i+1 ].

is there a way to write a code to:
player places block A and then block B
player hits block A
block A places block C

Depends a bit. If all your blocks are loaded - fine, could be made working. If the target isn't loaded - the new minetest.forceload_block might help you perhaps.

[i1abnrk]

Issue: lua mapgen seems to have no effect. I have tried several lua mapgen implementations (mods) but it seems the mapgen + seed in gui overrides the mod code and I'm stuck with vanilla every time. Minetest_game and the mod game both produce identical worlds. What are recommended settings or the prescribed method? I am using minetest 0.4.9 installed from deb on Ubuntu precise.

[Casimir]

Depends on the mod. Paramat most of the time chooses a different hight, so the Lua mapgen actually starts at 7000 and you have to teleport your self there. Some other mods just add new regions and you might have to search for them.
Do you have papyrus and cactus in your world? When normal mapgen would revert the Lua things, those would be missing too.

[i1abnrk]

Yes, there are cactus, etc on the mapgenv6 ans mapgenv7 produces just default:stone and water. It seems to me from testing that minetest.on_generate is being processed but the minetest.update_map isn't pushing changes to the map on any of the lua maps. I'm going to try a full reinstall to resolve potential issues from 0.4.7 I installed over.

[i1abnrk]

Yeah that fixed things. I pooched the manual update. Sorry and thanks.

[DeepGaze]

[spoiler]player places block A and then block B
player hits block A
block A places block C
Block B turns into a teleport to Block C
Block C turns into a teleport to Block B
player hits block A
Block C is destroyed
Block B stops teleport function[/spoiler]
I am assuming that location for block c is loaded. this is something I am learning (modding) I haven't written any code yet for the simple reason of not knowing any.

[wcwyes]

I'm trying to connect 2 worlds that you can't go back and forth without the portals without decreasing the expansion of the main world. Preferably on the same server.

Question is: What are you exactly aiming at? Do you want to cross-connect several servers by portals? If you just want to give the player the imagination that hes wandering between different worlds, you could create a mod which adds unpassable borders at specific heights and generate new land above this borders. If a player gets ported to the destination, he cannot get back to the original level without the portals. Thats at least the most useable solution ( imo ) when you don't want to kick out the user from his server and force him to reconnect somewhere else ( where he might run into problems when not finding it in the server list for example ).

If you want the crossconnect stuff ( which is interesting ), you have to suggest a API facility to the devs ( like minetest.client_connect_to( <connection parameters> ) ) which holds the current connection but tries to get the user into the other server. On success, he gives free the original connection. Should be a client-only thing.

[i1abnrk]

So what you need is a way to run two server instances and to bounce the connected client to the second server. You'll need two configuration files on the host machine, probably two copies of the minetestserver binary, each with its own config file. (Or a fork server but that's even more complicated) and way to rewrite the configuration on the client, at least in memory, so it connects to the port address of the second server. Port redirection is something minetest doesn't do yet. You can ask dev about it, as Toy suggested before, or you'll have to write it yourself.
Your surest course of action is to go to the github site from the Development link on www.minetest.net. There make a username and submit a feature request with a title like "multiple server config file support, lua port redirection' and try to describe what you are trying to accomplish. They are interested in new ideas.

[pandaro]

I tried to add a feature to the player's hand.
However, I have some problem:
if I call the function: "on_use (itemstack, user, pointed_thing)" everything works perfectly.
but if I call: "on_place (itemstack, user, pointed_thing)"
the function on_place is not called, does not work

here the code:

minetest.register_item(":", {
type = "none",
wield_image = "wieldhand.png",
wield_scale = {x=1,y=1,z=2.5},
on_place=function(itemstack,placer,pointed_thing)
print(tostring("on place hand"))
end
end,
tool_capabilities = {
full_punch_interval = 1.0,
max_drop_level = 0,
groupcaps = {
fleshy = {times={[2]=2.00, [3]=1.00}, uses=0, maxlevel=1},
crumbly = {times={[2]=3.00, [3]=0.70}, uses=0, maxlevel=1},
snappy = {times={[3]=0.40}, uses=0, maxlevel=1},
oddly_breakable_by_hand = {times={[1]=7.00,[2]=4.00,[3]=1.40}, uses=0, maxlevel=3},
}
}
})

There is a reason why "on_place" can not be defined by the hand?
or I'm wrong something?

[Casimir]

print(tostring("on place hand"))
You turn a string into a string.

This works for me.

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

    on_place = function(itemstack,placer,pointed_thing)
        print("on place hand")
    end,


[pandaro]

casimir thanks for trying to answer, but you did not understand the question.
The problem is in the

"on_place"

, but only within the definition of the item

":"

that is, the player's hand.
The function as I posted above works in any other tool, item, node; But it does not work in the definition of the hand.

[DeepGaze]

1)is it possible to make an action repeat on a player after they eat something?
2)is there a tutorial on teleporting?
3)how do you make a dialogue(menu for a block)

[Casimir]

@ pandora
Don't know if I understand you. I tried it with the hand, and it worked. All the other tools worked just as usual. If you want the function for all tools you would have to overwrite minetest.tooldef_default in /builtin/item.lua

@ DeepGaze
1) It is possible, but not the easy way. E.g. you could override the function eat_item, but you would have to load it before all other mods that use it. That means before "default".

[AMMOnym]

is possible with minetest make code for this : i destroy (Dirt) and i dont get dirt but (wool) ?

[DeepGaze]

Where is my error and what is it?
[spoiler]--this is Block-A
minetest.register_node("tardis:console", {
tile_images = {"tardis1.png"},
description = "Tardis Console",
groups={unbreakable=1},
after_place_node = function(pos, placer, itemstack)
local meta = minetest.env:get_meta(pos);
meta:set_string("infotext", "tardis (unconfigured)");
meta:set_string("tardis_name", "");
meta:set_string("tardis_arch","");
meta:set_string("owner", placer:get_player_name() );
-- request initinal data
meta:set_string("formspec",
"size[12,10]"..
"field[0.3,5.6;6,0.7;tardis_name;Name this tardis:;]"..
"field[0.3,6.6;6,0.7;tardis_arch;where is the arch:;]"..
"field[0.3,7.6;6,0.7;owner_name;(optional) owned by:;]"..
"button_exit[6.3,6.2;1.7,0.7;station_set;Store]")
})
--this is Block-B
minetest.register_node("tardis:door", {
tile_images = {"tardis2.png"},
description = "Tardis arch",
groups={unbreakable=1},
})
--this is Block-C
minetest.register_node("tardis:dest", {
tile_images = {"tardis3.png"},
groups={immortal},
})

--tardis key
minetest.register_chatcommand("keys", {
params = "<tardis> <x>,<y>,<z>",
description = "tardis to player",
privs = {tardis=true},
})
--privs
minetest.register_privilege("tardis", "Can use /tardis command")

minetest.register_node("tardis:heart", {
tile_images = {"2heart.png"},
walkable = false,
pointable = true,
on_use = minetest.item_eat(20),

})


--planned to make player immortal, unless the dammage is over 40hp[/spoiler]

[Novacain]

there is something wrong in the syntax of it. I put it into eclipse and got this error:
Description Resource Path Location Type
unexpected symbol near '}' main.lua /Test/src line 19 DLTK Problem


"test" is simply what I called the project.

you also spelled initial wrong in your comment.

PS, eclipse is your friend. it helps you realize you made an API error before you waould otherwise have noticed.

[pandaro]

I go back to my little problem.
I understand that: The function "on place" work if it is called within the definition of the player's hand. However, she only works if "pointed_thing" is not a player.
If the target of the "right_click" is a player, then minetest returns:

"20:34:49: ACTION [ServerThread]: john right-clicks the object 1: player Pandarus"

and the function "on_place" does not work.

I want to be able to bring up a "formspec" if I click with the right mouse button on another player.

Can someone explain to me how to get around this problem?

[Sokomine]

want to be able to bring up a "formspec" if I click with the right mouse button on another player.

Can someone explain to me how to get around this problem?

Perhaps it might work if you use a tool for the pointing?

[pandaro]

Perhaps it might work if you use a tool for the pointing?

yes, I know. However, my goal is to allow the exchange of objects between two players, without being forced to throw objects on the ground, and without having to build a chest to make the trade-off. To do this I was thinking of integrating a small menu of exchange that appears when a player is clicked by another player.

What I find frustrating is that by using "on_use" I can do what I want, but with "on_place" I can not

[Topywo]

is possible with minetest make code for this : i destroy (Dirt) and i dont get dirt but (wool) ?

Maybe this mod is useful for what you're looking for

https://forum.minetest.net/viewtopic.php?id=3675

[Sokomine]

yes, I know. However, my goal is to allow the exchange of objects between two players, without being forced to throw objects on the ground, and without having to build a chest to make the trade-off.

Sounds like a very good idea. There was a thread about that here which did not make it into a mod so far.

[pandaro]

Ah! I think if that works, try it yourself, it goes mod "default", look for the definition of the item ":" and add:

on_use=function(itemstack,user,pointed_thing)

print(dump(user:get_player_control().RMB))
print("on place hand")
if pointed_thing.ref and pointed_thing.ref:is_player() and then
local usr_name=user:get_player_name()
local target_name=pointed_thing.ref:get_player_name()
local swap = minetest.create_detached_inventory(usr_name..target_name,{})
swap:set_size("main",8*4)

minetest.show_formspec(usr_name,"trade-off","size[8,9]"..
"list[current_player;main;0,5;8,4;]"..
"list[detached:"..usr_name..target_name..";main;0,0;8,4;]")

minetest.show_formspec(target_name,"trade-off","size[8,9]"..
"list[current_player;main;0,5;8,4;]"..
"list[detached:"..usr_name..target_name..";main;0,0;8,4;]")
end
end,

that anger

[BrunoMine]

how to shine node?
I'm creating a mod.

[fishyWET]

how to shine node?
I'm creating a mod.

I think you meant how to make a node light up?

Add this to the node's code

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

light_source = 14,

14 is the strongest light, and it decreases as the number decreases.
Edit: Made a mistake at the max light source

[Topywo]

how to shine node?
I'm creating a mod.

I think you meant how to make a node light up?

Add this to the node's code

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

light_source = 8,

8 is the strongest light, and it decreases as the number decreases.

I thought 15 is daylight, but I'm not sure if the max is 14 or 15.

[Jordach]

how to shine node?
I'm creating a mod.

I think you meant how to make a node light up?

Add this to the node's code

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

light_source = 8,

8 is the strongest light, and it decreases as the number decreases.

I thought 15 is daylight, but I'm not sure if the max is 14 or 15.

Maximum light is 14.

[DeepGaze]

how do you animate a brick (do you have a code example I could steal)