Minetest Forums

Posted: **Sun Apr 07, 2013 13:45**

Thank you kaeza. It's working.

Posted: **Sun Apr 07, 2013 16:22**

I've been trying to figure out how to get this one to work. I am trying to show another nodes inventory through another node's formspec. I get it to retrieve the inventory properly but I'm not sure how to set its size to display the grid.

Code: Select all

on_construct = function(pos)
        local meta = minetest.env:get_meta(pos)
        meta:set_string("formspec", 
                "size[8,9]"..
                "list[nodemeta:"..meta:get_int("x")..","..meta:get_int("y")..","..meta:get_int("z")..";source;0,0;8,4;]"..
                "list[current_player;main;0,5;8,4;]")
        meta:set_string("infotext", "Stockpile")
        --I'm not sure which list I'm supposed to set to get this to work
    end,

Posted: **Sun Apr 07, 2013 20:48**

Ok you see the paper at, well that where I would like have the craft, 9 boxs at, but it didn't work so how do I make it work?

Posted: **Wed Apr 10, 2013 02:08**

So... can someone post a Utube vid on how to make items move from one chest to another in the tecnic mod.

Posted: **Wed Apr 10, 2013 19:47**

In which way I can get pseudo random number in minetest. I know method next() but if I do this:

Code: Select all

local i = next(0,100)

I have error.

Posted: **Wed Apr 10, 2013 20:15**

Code: Select all

my_random_number = math.random(10, 100)

This generates a number between 10 and 100.

Posted: **Sun Apr 14, 2013 15:45**

If a mod which affects map generation is added to an existing map, what happens?

Posted: **Sun Apr 14, 2013 16:27**

Newly generated map chunks will be generated with the mod in effect. Already existing map chunks will remain the same. Depending on how large your world is, you may have to go far out for the new mod to take effect.

Posted: **Wed Apr 17, 2013 19:53**

Hi, I'm back to this topic again. I'm making quartz from minecraft, and I want to know how to register ores, and how to make it as rare as iron. Also, I wanted to know what license the textures from minecraft are under.

Posted: **Wed Apr 17, 2013 21:12**

Evergreen wrote:Hi, I'm back to this topic again. I'm making quartz from minecraft, and I want to know how to register ores, and how to make it as rare as iron. Also, I wanted to know what license the textures from minecraft are under.

the code to register an ore in order for it to spawn at -*** or what ever you set it to and it's very lanthy one of the more complex codes in minetest

Posted: **Wed Apr 17, 2013 21:22**

There is a register ore function.

Posted: **Thu Apr 18, 2013 01:51**

I need help.
I need to take away coal from all 18box but I can from only 1st one.
code:

Code: Select all

local function placeNode(pos)
    local n = minetest.env:get_node(pos).name
      if (n == "air") then
    minetest.env:add_node(pos, {name="forcefield:forcefield"})
end
end


local function placeCubicShell(pos, sideLen)
   local s = math.floor(sideLen/2)
   for dx = -s, s do
      for dy = -s, s do
         placeNode({ x = pos.x + dx, y = pos.y + dy, z = pos.z - s })
         placeNode({ x = pos.x + dx, y = pos.y + dy, z = pos.z + s })
      end
   end
   for dy = -s, s do
      for dz = -s, s do
         placeNode({ x = pos.x - s, y = pos.y + dy, z = pos.z + dz })
         placeNode({ x = pos.x + s, y = pos.y + dy, z = pos.z + dz })
      end
   end
   for dz = -s, s do
      for dx = -s, s do
         placeNode({ x = pos.x + dx, y = pos.y - s, z = pos.z + dz })
         placeNode({ x = pos.x + dx, y = pos.y + s, z = pos.z + dz })
      end
   end
end



local function removeNode(pos)
      local n = minetest.env:get_node(pos).name
    if (n == "forcefield:forcefield") then
    minetest.env:add_node(pos, {name="air"})
end
end

local function removeCubicShell(pos, sideLen)
   local s = math.floor(sideLen/2)
   for dx = -s, s do
      for dy = -s, s do
         removeNode({ x = pos.x + dx, y = pos.y + dy, z = pos.z - s })
         removeNode({ x = pos.x + dx, y = pos.y + dy, z = pos.z + s })
      end
   end
   for dy = -s, s do
      for dz = -s, s do
         removeNode({ x = pos.x - s, y = pos.y + dy, z = pos.z + dz })
         removeNode({ x = pos.x + s, y = pos.y + dy, z = pos.z + dz })
      end
   end
   for dz = -s, s do
      for dx = -s, s do
         removeNode({ x = pos.x + dx, y = pos.y - s, z = pos.z + dz })
         removeNode({ x = pos.x + dx, y = pos.y + s, z = pos.z + dz })
      end
   end
end
















minetest.register_node("forcefield:forcefield", {
    tiles = {"forcefield_forcefield.png"},
    drawtype = glasslike,
    sunlight_propagates = true,
    walkable = true,
    diggable = false,
    damage_per_second = 4,
    on_punch = function(pos, node, puncher)
        punch = 1
    end,
    on_construct = function(pos)
        fpos = minetest.env:find_node_near(pos, 10, "forcefield:fmaker")
        local meta1 = minetest.env:get_meta(pos)
        local meta2 = minetest.env:get_meta(fpos)
        local fgen = 1
    end,
})

minetest.register_abm({
    nodenames = {"forcefield:forcefield"},
    interval = 1,
    chance = 1,
    action = function(pos, node, active_object_count, active_object_count_wider)
        if  minetest.env:find_node_near(pos, 6, "forcefield:fmaker") == nil then
        minetest.env:add_node(pos, {name="air"})
        end
    end,
})

default.forcefield_formspec =
    "size[8,9]"..
    "list[current_name;coal;2,1;6,3;]"..
    "list[current_player;main;0,5;8,4;]"..
    "field[0,3;2,1;range;range;4]"..
    "button_exit[0,1;2,1;exit;exit]"


minetest.register_node("forcefield:fmaker", {
    description = "Forcefield Generator",
    tiles = {"forcefield_sides.png","forcefield_sides.png","forcefield_front.png","forcefield_sides.png","forcefield_sides.png","forcefield_sides.png"},
    groups = {snappy=2, choppy=2},    
    after_place_node = function(pos, placer)
        local meta = minetest.env:get_meta(pos)
        if fgens then
        table.insert (fgens  , 0)
        meta:set_string("fgen", table.getn (fgens) ) 
        else 
        fgens = {0}
        table.insert (fgens  , 0)
        meta:set_string("fgen", table.getn (fgens))
    end
        meta:set_string("owner", placer:get_player_name() or "")
        meta:set_string("infotext", "Locked Chest (owned by "..meta:get_string("owner").."   #"..meta:get_string("fgen")..")")
    end,
    on_construct = function(pos)
        local meta = minetest.env:get_meta(pos)
        meta:set_string("formspec", default.forcefield_formspec)
        meta:set_string("infotext", "forcefield generator")
        local inv = meta:get_inventory()
        inv:set_size("coal", 18)
    end,

    can_dig = function(pos,player)
        local meta = minetest.env:get_meta(pos);
        local inv = meta:get_inventory()
        if not inv:is_empty("coal", 18) then
            return false
        end
        return true
    end,
 
})




minetest.register_abm({
    nodenames = {"forcefield:fmaker"},
    interval = 1,
    chance = 1,
    action = function(pos, node, active_object_count, active_object_count_wider)
        local meta = minetest.env:get_meta(pos)
        local inv = meta:get_inventory()
        local coallist = inv:get_list("coal")
            if inv:contains_item("coal", "default:coal_lump") then
            coalstack = inv:get_stack("coal", 1)
                    coalstack:take_item()
                    inv:set_stack("coal", 1, coalstack)
                placeCubicShell(pos, 10)
                else
                removeCubicShell(pos, 10)    
        end
            if fgens[meta:get_string("fgen")] >= 1 then
                coalstack = inv:get_stack("coal", 1)
                    coalstack:take_item()
                    inv:set_stack("coal", 1, coalstack)
                    fgens[meta:get_string("fgen")] = 0
        end

    end,
})


minetest.register_craft({
    output = 'forcefield:fmaker',
    recipe = {
        {'default:mese', 'default:mese', 'default:mese'},
        {'default:mese', 'default:furnace', 'default:mese'},
        {'default:mese', 'default:mese', 'default:mese'},
    }
})

part with taking coal is

Code: Select all

                 coalstack = inv:get_stack("coal", 1)
                    coalstack:take_item()
                    inv:set_stack("coal", 1, coalstack)

I need this for my forcefield mod

Posted: **Thu Apr 18, 2013 02:00**

also, is it possible to save table like data after server restart?

Posted: **Thu Apr 18, 2013 11:50**

write it to a file^

Posted: **Thu Apr 18, 2013 13:02**

Ignore my previous question, I figured it out.

Posted: **Thu Apr 18, 2013 14:46**

Traxie21 wrote:write it to a file^

how?

Posted: **Fri Apr 19, 2013 18:47**

Is it possible to only have one of a certain type of node generate in the entire map?

Posted: **Sat Apr 20, 2013 01:32**

I could use some help with a timer for a HUD. I need to be able to remove one thing each second,
but I always get ERROR: Nil value, with no code indicator or anything. All variables seem valid.

HELP!

Code: Select all

local player = user

                local function timer(player, str)
                    if cntdown < 1 then
                        user:hud_remove(0)
                        user:hud_remove(1)
                        user:hud_remove(2)
                        user:hud_remove(3)
                    else
                        cntdown = cntdown-1
                        length1 = cntdown+str:len()
                        player:hud_change(0, number, length1*2+1)
                        local tbl = {player, str}
                        minetest.after(1, function(param)
                            timer(param.player, param.str)
                        end, tbl)                
                    end
                end
                timer(user, iname)

Posted: **Sat Apr 20, 2013 02:03**

Traxie21 wrote:I could use some help with a timer for a HUD. I need to be able to remove one thing each second,
but I always get ERROR: Nil value, with no code indicator or anything. All variables seem valid.

HELP!

Code: Select all

local player = user

                local function timer(player, str)
                    if cntdown < 1 then
                        user:hud_remove(0)
                        user:hud_remove(1)
                        user:hud_remove(2)
                        user:hud_remove(3)
                    else
                        cntdown = cntdown-1
                        length1 = cntdown+str:len()
                        player:hud_change(0, number, length1*2+1)
                        local tbl = {player, str}
                        minetest.after(1, function(param)
                            timer(param.player, param.str)
                        end, tbl)                
                    end
                end
                timer(user, iname)

so where is cntdown initialized?

Posted: **Sat Apr 20, 2013 05:49**

ch98 wrote:
Traxie21 wrote:write it to a file^
how?

Untested:

Code: Select all

function save(mytable, filename)
    file, error = io.open(filename, "w")
    if error then return error end
    file:write(minetest.serialize(mytable))
    file:close()
end

function load(filename)
    file, error = io.open(filename, "r")
    if error then return error end
    local mytable = minetest.deserialize(file:read("*a"))
    file:close()
    return mytable
end

Edit: added arguments, avoided overwriting the Lua "table" table.

Posted: **Sat Apr 20, 2013 08:53**

Traxie21 wrote:I could use some help with a timer for a HUD. I need to be able to remove one thing each second,
but I always get ERROR: Nil value, with no code indicator or anything. All variables seem valid.

HELP!

Code: Select all

local max = 8 --max items to remove
local function timer(cnt, player)
    if cnt <= max then
        minetest.chat_send_all("remove hud item " .. cnt.. " from " ..player:get_player_name())  --removing
        minetest.after(1, timer, cnt+1, player)
    else
        minetest.chat_send_all("all " ..max.. "items are removed. now do want ever you want :P")        
    end
end

start the timer with

Code: Select all

timer(0, player) --or another number

Posted: **Sat Apr 20, 2013 13:37**

Will test blockmen.
RBA: its a local just above that code. it's usually equal to 60

Posted: **Sat Apr 20, 2013 19:11**

Can someone fully explain the API for minetest.register_tool? The wiki article isn't complete.

Posted: **Sun Apr 21, 2013 01:17**

Shadow wrote:

ch98 wrote:
Traxie21 wrote:write it to a file^
how?

Untested:

Code: Select all

function save(mytable, filename)
    file, error = io.open(filename, "w")
    if error then return error end
    file:write(minetest.serialize(mytable))
    file:close()
end

function load(filename)
    file, error = io.open(filename, "r")
    if error then return error end
    local mytable = minetest.deserialize(file:read("*a"))
    file:close()
    return mytable
end

Edit: added arguments, avoided overwriting the Lua "table" table.

Thank you. I will try that.

Posted: **Mon Apr 22, 2013 19:51**

Hey, How Do You Define An Entity?

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