Post your modding questions here

[Achilles]

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

Maybe it would make a good game also, but I meant it for another purpose lol

[Esteban]

What other methods are available to make a node spawn on a map beyond ABMs?

[TenPlus1]

minetest.register_on_generated(function(minp, maxp, seed)

this will place specific nodes when a new area of map is generated and with a specific set of rules that you specify in the function...

[Esteban]

minetest.register_on_generated(function(minp, maxp, seed)

this will place specific nodes when a new area of map is generated and with a specific set of rules that you specify in the function...

Thanks!

[AMMOnym]

20:49:33: ERROR[main]: ServerError: ...top\minetest-0.4.10\bin\..\mods\PKMNS\pok
enodes\init.lua:192: attempt to index local 'pos' (a nil value)
20:49:33: ERROR[main]: stack traceback:
20:49:33: ERROR[main]: ...top\minetest-0.4.10\bin\..\mods\PKMNS\pokenodes\init.
lua:192: in function 'on_rightclick'
20:49:33: ERROR[main]: ...min\Desktop\minetest-0.4.10\bin\..\builtin\game\item.
lua:326: in function <...min\Desktop\minetest-0.4.10\bin\..\builtin\game\item.lu
a:319>

How can I repair it ?

minetest.register_node("pokenodes:bulbasaur", {
description = "Bulbasaur",
wield_image = "pokeball.png",
drawtype = "torchlike",
paramtype = "light",
paramtype2 = "wallmounted",
sunlight_propagates = true,
walkable = false,
tiles = {"bulbasaur.png"},
groups = {catch=1, catch4=1,},
inventory_image = "pokeball.png",
on_rightclick = function(pos, node, player, itemstack, pointed_thing)
local pos = pointed_thing.above;
local node = minetest.env:get_node({x=pos.x, y=pos.y+1, z=pos.z});
if(node.name == "air") then
local p = {x=pos.x, y=pos.y+1, z=pos.z};
minetest.set_node(p, {name="default:dirt"})
--return;
end
end,
on_destruct = function(pos)
minetest.chat_send_all("set");
local p = {x=pos.x, y=pos.y+1, z=pos.z};
minetest.env:remove_node(p);
end
})

This is code

[Krock]

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Code: Select all

on_rightclick = function(itemstack, clicker, pointed_thing)
      local pos = pointed_thing.above;
      local node = minetest.env:get_node({x=pos.x, y=pos.y+1, z=pos.z});
      if(node.name == "air") then
         local p = {x=pos.x, y=pos.y+1, z=pos.z};
         minetest.set_node(p, {name="default:dirt"})
         --return;
      end
   end,

https://github.com/minetest/minetest/bl ... i.txt#L603

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Code: Select all

on_rightclick = function(itemstack, clicker, pointed_thing)
      if pointed_thing.type ~= "node" then
         return
      end
      local pos = pointed_thing.above
      local node = minetest.get_node({x=pos.x, y=pos.y+1, z=pos.z})
      if node.name == "air" then
         local p = {x=pos.x, y=pos.y+1, z=pos.z}
         minetest.set_node(p, {name="default:dirt"})
         --return;
      end
   end,

[AMMOnym]

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Code: Select all

on_rightclick = function(itemstack, clicker, pointed_thing)
      local pos = pointed_thing.above;
      local node = minetest.env:get_node({x=pos.x, y=pos.y+1, z=pos.z});
      if(node.name == "air") then
         local p = {x=pos.x, y=pos.y+1, z=pos.z};
         minetest.set_node(p, {name="default:dirt"})
         --return;
      end
   end,

https://github.com/minetest/minetest/bl ... i.txt#L603

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Code: Select all

on_rightclick = function(itemstack, clicker, pointed_thing)
      if pointed_thing.type ~= "node" then
         return
      end
      local pos = pointed_thing.above
      local node = minetest.get_node({x=pos.x, y=pos.y+1, z=pos.z})
      if node.name == "air" then
         local p = {x=pos.x, y=pos.y+1, z=pos.z}
         minetest.set_node(p, {name="default:dirt"})
         --return;
      end
   end,

It works now, thanks. Do you know, how to spawn dirt just above pointed node ? Becouse when I click on side of node, it makes a node like x+1, y+1

[Krock]

It works now, thanks. Do you know, how to spawn dirt just above pointed node ? Becouse when I click on side of node, it makes a node like x+1, y+1

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Code: Select all

local pos = pointed_thing.under

There you go. The poinuted node under and 1 node above is the position you wish.

[AMMOnym]

It works now, thanks. Do you know, how to spawn dirt just above pointed node ? Becouse when I click on side of node, it makes a node like x+1, y+1

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Code: Select all

local pos = pointed_thing.under

There you go. The poinuted node under and 1 node above is the position you wish.

FINNALY it works......I like you !!

[rubenwardy]

.

[Krock]

Did you even read the error message?

Pos doesn't exist on line 192. You have probably got the function parameters wrong.

I think this is self-explaining :P

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Code: Select all

      if pointed_thing.type ~= "node" then
         return
      end

[rubenwardy]

I didn't see your answer. I was talking to AMMOnym

[AMMOnym]

I didn't see your answer. I was talking to AMMOnym

You can see working code in pokenodes now. I know that I had that really bad, but I am just moddet beginner.

[4aiman]

Answering my own question: there's no way besides caching.

[AMMOnym]

Hello could someone explain me this numbers (Its from on_generated function)

minp, maxp, seed+21, 1/10/10/10, 1, -31000, -40)

[Topywo]

Hello could someone explain me this numbers (Its from on_generated function)

minp, maxp, seed+21, 1/10/10/10, 1, -31000, -40)

I can't explain properly what it means. I recognize it from the ore generation in mapgen.lua from an old default:

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Code: Select all

-- Ore generation
--

function default.generate_ore(name, wherein, minp, maxp, seed, chunks_per_volume, chunk_size, ore_per_chunk, height_min, height_max)
   if maxp.y < height_min or minp.y > height_max then
      return
   end
   local y_min = math.max(minp.y, height_min)
   local y_max = math.min(maxp.y, height_max)
   local volume = (maxp.x-minp.x+1)*(y_max-y_min+1)*(maxp.z-minp.z+1)
   local pr = PseudoRandom(seed)
   local num_chunks = math.floor(chunks_per_volume * volume)
   local inverse_chance = math.floor(chunk_size*chunk_size*chunk_size / ore_per_chunk)
   --print("generate_ore num_chunks: "..dump(num_chunks))
   for i=1,num_chunks do
      local y0 = pr:next(y_min, y_max-chunk_size+1)
      if y0 >= height_min and y0 <= height_max then
         local x0 = pr:next(minp.x, maxp.x-chunk_size+1)
         local z0 = pr:next(minp.z, maxp.z-chunk_size+1)
         local p0 = {x=x0, y=y0, z=z0}
         for x1=0,chunk_size-1 do
         for y1=0,chunk_size-1 do
         for z1=0,chunk_size-1 do
            if pr:next(1,inverse_chance) == 1 then
               local x2 = x0+x1
               local y2 = y0+y1
               local z2 = z0+z1
               local p2 = {x=x2, y=y2, z=z2}
               if minetest.env:get_node(p2).name == wherein then
                  minetest.env:set_node(p2, {name=name})
               end
            end
         end
         end
         end
      end
   end
   --print("generate_ore done")
end

minetest.register_on_generated(function(minp, maxp, seed)
   -- Generate regular ores
   default.generate_ore("default:stone_with_coal", "default:stone", minp, maxp, seed+0, 1/8/8/8,    3, 8, -31000,  64)
   default.generate_ore("default:stone_with_iron", "default:stone", minp, maxp, seed+1, 1/12/12/12, 2, 3,    -15,   2)
   default.generate_ore("default:stone_with_iron", "default:stone", minp, maxp, seed+2, 1/9/9/9,    3, 5,    -63, -16)
   default.generate_ore("default:stone_with_iron", "default:stone", minp, maxp, seed+3, 1/7/7/7,    3, 5, -31000, -64)
   
   default.generate_ore("default:stone_with_mese", "default:stone", minp, maxp, seed+4, 1/16/16/16, 2, 3,   -127,  -64)
   default.generate_ore("default:stone_with_mese", "default:stone", minp, maxp, seed+5, 1/9/9/9,    3, 5, -31000, -128)
   default.generate_ore("default:mese",            "default:stone", minp, maxp, seed+8, 1/16/16/16, 2, 3, -31000,-1024)
   
   default.generate_ore("default:stone_with_coal", "default:stone", minp, maxp, seed+7, 1/24/24/24, 6,27, -31000,  0)
   default.generate_ore("default:stone_with_iron", "default:stone", minp, maxp, seed+6, 1/24/24/24, 6,27, -31000, -64)


[AMMOnym]

That is what I am looking for. Thanks Topywo

[AMMOnym]

Hello me again,

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

local function generate_ore(name, wherein, minp, maxp, seed, chunks_per_volume, ore_per_chunk, height_min, height_max)
   if maxp.y < height_min or minp.y > height_max then
      return
   end
   local y_min = math.max(minp.y, height_min)
   local y_max = math.min(maxp.y, height_max)
   local volume = (maxp.x-minp.x+1)*(y_max-y_min+1)*(maxp.z-minp.z+1)
   local pr = PseudoRandom(seed)
   local num_chunks = math.floor(chunks_per_volume * volume)
   local chunk_size = 3
   if ore_per_chunk <= 4 then
      chunk_size = 2
   end
   local inverse_chance = math.floor(chunk_size*chunk_size*chunk_size / ore_per_chunk)
   --print("generate_ore num_chunks: "..dump(num_chunks))
   for i=1,num_chunks do
      local y0 = pr:next(y_min, y_max-chunk_size+1)
      if y0 >= height_min and y0 <= height_max then
         local x0 = pr:next(minp.x, maxp.x-chunk_size+1)
         local z0 = pr:next(minp.z, maxp.z-chunk_size+1)
         local p0 = {x=x0, y=y0, z=z0}
         for x1=0,chunk_size-1 do
         for y1=0,chunk_size-1 do
         for z1=0,chunk_size-1 do
            if pr:next(1,inverse_chance) == 1 then
               local x2 = x0+x1
               local y2 = y0+y1
               local z2 = z0+z1
               local p2 = {x=x2, y=y2, z=z2}
               if minetest.env:get_node(p2).name == wherein then
                  minetest.env:set_node(p2, {name=name})
               end
            end
         end
         end
         end
      end
   end
end

minetest.register_on_generated(function(minp, maxp, seed)
generate_ore("pokenodes:teamrocketmember", "default:dirt_with_grass", minp, maxp, seed+21,   1/10/10/10,    1, -31000,  10)
end)


Is there any way how to generate them ON the default:dirt_with_grass ?

[Icalasari]

Topic: The heck is wrong with this code:

minetest.register_on_joinplayer(
set_physics_override{
jump= 25.0
}
)

Reason: I have been trying many different combinations of placements of brackets and node sets and such to try to get a jump mod in and later do blocks that would affect jump height
More Info: :| The wiki is really lacking on how to call stuff like this to affect the player

[Topywo]

@aMMOnym
I never tried to use the code that way, but in that case you might need to spawn them in "air" and build an if/then construction around it that checks if there's default_dirt_with_grass under it. If that works, you can use - 31.000 and + 31000 to spawn your pokemons.

[Topywo]

@Icalasari
Idk, but you might find this mod (playerplus from TenPlus1) usable to understand how to code it:
viewtopic.php?f=9&t=10090

[AMMOnym]

@aMMOnym
I never tried to use the code that way, but in that case you might need to spawn them in "air" and build an if/then construction around it that checks if there's default_dirt_with_grass under it. If that works, you can use - 31.000 and + 31000 to spawn your pokemons.

Thank you for answer. I have diferent idea now. I will make a block which will looks like default:dirt_with_grass(generated). And amb to spawn trainers on these dirt nodes.

[Krock]

Topic: The heck is wrong with this code:

minetest.register_on_joinplayer(
set_physics_override{
jump= 25.0
}
)

Please look at https://github.com/minetest/minetest/bl ... ua_api.txt

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Code: Select all

minetest.register_on_joinplayer(function(player)
   player:set_physics_override({
      jump = 25.0
   })
end)

using 25 for jump is a bit too much. Use something like 1.5 or 2.

[Icalasari]

Topic: The heck is wrong with this code:

minetest.register_on_joinplayer(
set_physics_override{
jump= 25.0
}
)

Please look at https://github.com/minetest/minetest/bl ... ua_api.txt

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

minetest.register_on_joinplayer(function(player)
   player:set_physics_override({
      jump = 25.0
   })
end)

using 25 for jump is a bit too much. Use something like 1.5 or 2.

The 25 was so I could know when I succeeded since it would be hard to miss shooting up into the sky

And thanks - I would... Not have picked up the function(player) part any time soon. So far I'm at the stage of learn by breaking things and asking so many questions that I am liable to tick off at least one person

Edit: Is the wiki the most up to date source on tutorials and references?

Edit 2: ...How did I miss the link in your post

[Achilles]

If you want to find out how to do something, then just post the question on this forum. It is liable that someone shall be able to answer it in a way that should suite you and others.

I am not saying that Minetest Wiki is not reliable (It is), however this forum is probably more so: depending on who is answering your query...

[rubenwardy]

If you want to find out how to do something, then just post the question on this forum. It is liable that someone shall be able to answer it in a way that should suite you and others.

I am not saying that Minetest Wiki is not reliable (It is), however this forum is probably more so: depending on who is answering your query...

No no no no no!

That's like saying don't google it before, just ask the question on Stack Overflow. Not good

If you can't work out how to do it by
1) looking at lua-api.txt
2) reading wiki
3) searching the forum
Then, and only then, do you post a question.

[fherno14]

tengo una idea para un mod de magia
como el de minecraft witchery o algo asi

[Icalasari]

If you want to find out how to do something, then just post the question on this forum. It is liable that someone shall be able to answer it in a way that should suite you and others.

I am not saying that Minetest Wiki is not reliable (It is), however this forum is probably more so: depending on who is answering your query...

No no no no no!

That's like saying don't google it before, just ask the question on Stack Overflow. Not good

If you can't work out how to do it by
1) looking at lua-api.txt
2) reading wiki
3) searching the forum
Then, and only then, do you post a question.

Heck, I did steps 2 and 3. I just didn't know of the api til Crock's post (and god I want to make love to the API it's so much easier than looking through the mods and trying to figure out, "Ok, this line does that but yet this one way over here seems needed and what the fuck is going on?"

[lag01]

I want to set callback function, to trigger when one player right clicks other player while holding craftitem. (Of course i need know both players from that function)
Can i use on_use callback for that? But how can i check/threat "pointed_thing" as player then?

[stu]

I want to set callback function, to trigger when one player right clicks other player while holding craftitem. (Of course i need know both players from that function)
Can i use on_use callback for that? But how can i check/threat "pointed_thing" as player then?

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Code: Select all

if pointed_thing.type == "object" then
   local object = pointed_thing.ref
   if object:is_player() then
      -- do stuff to object
   end
end


hope it helps.