FOSS gamedev and creative worlds

Posted: **Tue Jul 12, 2016 04:16**

I'm trying to use minetest.swap_node to turn a computer on when it is rightclicked. First the computer is set to the bios version, then using minetest.after it is set to the fully on computer after 3.5 seconds. Full code is at the bottom of this post.

The first of my issues, is that on rightclick, I get this error in the chat and the node does not change, though the 3.5 second counter still attempts to run and fails.

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: ERROR[Server]: Map::setNode(): Not allowing to place CONTENT_IGNORE while trying to replace "digiterm:basic" at (179,6,-51) (block (11,0,-4))

After 3.5 seconds, the game crashes with:

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: 2016-07-11 21:00:34: ERROR[Main]: ServerError: Runtime error from mod 'creative' in callback environment_Step(): ...local/share/minetest/games/testing/mods/digiterm/api.lua:21: attempt to index local 'pos' (a nil value) 2016-07-11 21:00:34: ERROR[Main]: stack traceback: 2016-07-11 21:00:34: ERROR[Main]: ...local/share/minetest/games/testing/mods/digiterm/api.lua:21: in function 'func' 2016-07-11 21:00:34: ERROR[Main]: /usr/local/share/minetest/builtin/game/misc.lua:34: in function </usr/local/share/minetest/builtin/game/misc.lua:11> 2016-07-11 21:00:34: ERROR[Main]: /usr/local/share/minetest/builtin/game/register.lua:369: in function </usr/local/share/minetest/builtin/game/register.lua:349>

Swap node function:

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: -- turn on (not functional) function digiterm.system.on(pos, node) minetest.swap_node({x = pos.x, y = pos.y, z = pos.z}, {name = node.."_bios"}) -- set node to bios minetest.after(3.5, function(pos) minetest.swap_node({x = pos.x, y = pos.y, z = pos.z}, {name = node.."_on"}) -- set node to on after 5 seconds end) end -- turn off function digiterm.system.off(pos, termstring) minetest.swap_node(pos, "digiterm:"..termstring.."_bios") -- set node to on end -- reboot function digiterm.system.reboot(pos, termstring) digiterm.system.off(pos, termstring) digiterm.system.on(pos, termstring) end

I tried manually entering the info, which worked, but cannot be relied upon when more nodes are added. I can do all this manually within the node register, though I think such a function is more effecient as I will also be using it later. However, though this did work, the node was placed facing the wrong direction. What can I do to fix this?

+ Full Code (API)

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: -- digiterm/api.lua -- FORMSPECS digiterm.formspec = {} -- normal function digiterm.formspec.normal(output, input) return 'size[10,11] textarea[.25,.25;10,10.5;output;;'..output..'] button[0,9.5;10,1;update;update] field[.25,10.75;9,1;input;;'..input..'] button[9,10.5;1,1;submit;submit]' end -- refresh function digiterm.formspec.operating(startspace) return (startspace and ' ' or '')..digiterm.formspec.normal('${output}', '${input}'); end -- /FORMSPECS -- SYSTEM FUNCTIONS digiterm.system = {} -- turn on (not functional) function digiterm.system.on(pos, node) minetest.swap_node({x = pos.x, y = pos.y, z = pos.z}, {name = node.."_bios"}) -- set node to bios minetest.after(3.5, function(pos) minetest.swap_node({x = pos.x, y = pos.y, z = pos.z}, {name = node.."_on"}) -- set node to on after 5 seconds end) end -- turn off function digiterm.system.off(pos, termstring) minetest.swap_node(pos, "digiterm:"..termstring.."_bios") -- set node to on end -- reboot function digiterm.system.reboot(pos, termstring) digiterm.system.off(pos, termstring) digiterm.system.on(pos, termstring) end -- /SYSTEM FUNCTIONS function digiterm.register_terminal(termstring, desc) -- off minetest.register_node("digiterm:"..termstring, { description = desc.description, tiles = desc.off_tiles, paramtype2 = "facedir", groups = {cracky = 2}, sounds = default.node_sound_stone_defaults(), digiline = { receptor = {}, effector = { action = function(pos, node, channel, msg) local meta = minetest.get_meta(pos) -- get meta = -- if channel is correct, turn on if channel == meta:get_string("channel") then if msg.system == "on" then digiterm.system.on(pos) end end end }, }, on_rightclick = function(pos) digiterm.system.on(pos, termstring) end, }) -- bios minetest.register_node("digiterm:"..termstring.."_bios", { description = desc.description, tiles = desc.bios_tiles, paramtype2 = "facedir", groups = {cracky = 2}, sounds = default.node_sound_stone_defaults(), }) -- on minetest.register_node("digiterm:"..termstring.."_on", { description = desc.description, tiles = desc.on_tiles, paramtype2 = "facedir", groups = {cracky = 2}, sounds = default.node_sound_stone_defaults(), digiline = { receptor = {}, effector = { action = function(pos, node, channel, msg) local meta = minetest.get_meta(pos) -- get meta if channel ~= meta:get_string("channel") then return end -- ignore if not proper channel if type(msg) ~= "table" then meta:set_string("output", meta:get_string("output")..msg) -- set output buffer meta elseif type(msg) == "table" then -- process tables if msg.display == "clear" then meta:set_string("output", "") end -- clear display end end }, }, on_construct = function(pos) -- set meta and formspec local meta = minetest.get_meta(pos) -- get meta meta:set_string("output", "") -- output buffer meta:set_string("input", "") -- input buffer meta:set_string("formspec", "field[channel;Set Channel:;${channel}]") -- channel specification formspec end, on_receive_fields = function(pos, formname, fields, sender) -- precess formdata local meta = minetest.get_meta(pos) -- get meta -- if channel received, set meta if fields.channel then meta:set_string("channel", fields.channel) -- set channel meta meta:set_string("formspec", digiterm.formspec.operating(true)) -- refresh formspec return end -- if submit, reset field print to output and send digiline if fields.submit then digiline:receptor_send(pos, digiline.rules.default, meta:get_string("channel"), fields.input) -- send digiline data meta:set_string("output", meta:get_string("channel").."@minetest:~$\n "..fields.input.."\n") -- repeat input else meta:set_string("input", fields.input) end -- else, do nothing -- refresh formspec meta:set_string("formspec", digiterm.formspec.operating(meta:get_string("formspec"):sub(0, 1) ~= " ")) end, }) end

+ Node Register using API

Posted: **Tue Jul 12, 2016 07:36**

Try this one:

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.after(3.5, function(pos_) minetest.swap_node(pos_, {name = node.."_on"}) -- set node to on after 5 seconds end, vector.new(pos))

When you define a function with a parameter in "minetest.after", you must also give the parameters to be sent.

Posted: **Tue Jul 12, 2016 08:19**

hmm in api you define the node as minetest.register_node("digiterm:"..termstring,
but in your on() function you want to swap the node {name = node.."_bios"}) . which fails, because that nodename is not registered. the probably correct function might be:

function digiterm.system.on(pos, node)
minetest.swap_node(pos, {name ="digiterm:".. node.."_bios"}) -- set node to bios
minetest.after(3.5, function(pos)
minetest.swap_node(pos, {name ="digiterm:".. node.."_on"}) -- set node to on after 5 seconds
end, pos)
end

Posted: **Tue Jul 12, 2016 15:51**

Thanks! Putting both of your responses together fixed the problem. Now for my other problem. How do I use facedir (paramtype2) with swap node?

FOSS gamedev and creative worlds

Swap Node On Rightclick Problem

Swap Node On Rightclick Problem

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