[Mod] Mesecons (= redstone) [GitHub] [minetest-mod-mesecons]

[Wuzzy]

OK, now that PR 535 was merged, this follow-up PR is now ready:

https://github.com/minetest-mods/mesecons/pull/635

This is the ACTUAL meat of it all. This PR will add tons of new noteblock instruments, as announced previously.

[kfeldi86]

Hey ho,

I want to use a command block to replace an existing block with an "air block".

place x y z air

does not work.

Any suggestions?
Is there a list with all command block commands?

[Desour]

Hey ho,

I want to use a command block to replace an existing block with an "air block".

place x y z air

does not work.

Any suggestions?
Is there a list with all command block commands?

The command block can only execute chatcommands. See `/help` for available ones.
(If you want to set a node somewhere, you'll need some mod that registers this chatcommand.)

[mmmsued]

-- deleted --

[mmmsued]

Hey ho,

I want to use a command block to replace an existing block with an "air block".

place x y z air

does not work.

Any suggestions?
Is there a list with all command block commands?

Try this in a command block

Code: Select all

/fixedpos set1 0 0 0
/fixedpos set2 0 0 0
/set air
/unmark

WorldEdit-mod musst be installed. Replace 0 with desired position (x y z). Don't use decimal numbers (like 23.0).

[Ghaydn]

Updated blinker.
https://github.com/Ghaydn/misc_minetest ... r_mega.lua
This script can now be used in lua tubes and do simple sorting by item names. For more complex sorting you may want to mix it with sorter functions: https://github.com/Ghaydn/misc_minetest ... r_mega.lua
As in old version, you need to configure blink rate, port sequence, pins (switch, detector, killswitch) and wait-before-turn-off time before use; list of sorted items is in the header too.

[elettrico]

Hi,
is there a way to access node position inside a luacontroller? I want to do something like that:

Code: Select all

if (event.type=="on") then
  digiline_send("channel", pos)
end

are there "environment variables" which I can read from the cose?
thanks

[Blockhead]

Hi,
is there a way to access node position inside a luacontroller? I want to do something like that:

Code: Select all

if (event.type=="on") then
  digiline_send("channel", pos)
end

are there "environment variables" which I can read from the cose?
thanks

The Luacontroller is a digital device with Mesecons and Digilines connections, but no sensors or environment info like that. You would need an external component to signal that kind of info across a digiline.

P.S. if you haven't already, read the tutorial at mesecons.net/luacontroller.

[Ghaydn]

I currently ran into a very dumb problem. I'm trying to calculate datetimes on luacontroller and... can't.
What I'm trying to do is: take a date (local date = os.datetable()), add N days to it and show new date on a LCD. Looks simple, but it's not. I can convert datetable into seconds, then add N*60*60*24 to it and then... well, I could write some overcomplicated calendar algorithm to convert it back to datetable. But is there any simpler, cleaner way?

[Blockhead]

I currently ran into a very dumb problem. I'm trying to calculate datetimes on luacontroller and... can't.
What I'm trying to do is: take a date (local date = os.datetable()), add N days to it and show new date on a LCD. Looks simple, but it's not. I can convert datetable into seconds, then add N*60*60*24 to it and then... well, I could write some overcomplicated calendar algorithm to convert it back to datetable. But is there any simpler, cleaner way?

Basically you do need the calendar info in your program. It's not directly for your application, but I have a lot of the relevant code I think you'll need, and some you won't.

The follow is a program that has been deployed and working well for multiple years at my house on LinuxForks server which shows the Sydney/Melbourne/Canberra timezone (AEST/AEDT depending on time of year) on a server set to CET, which accounts for and removes DST on the server, calculates the DST changeover date in Australia for the current year, and then displays the date.

You won't need the function firstXdayOfMonth and probably not the timezone or DST logic, but it does have code for the leap year calculation; rolling over to the next day, month and/or year when Australia is ahead of the server timezone; and displaying the date table in ISO 8601 format to a digiline LCD or textline; which are the kind of things you will need for your future date.

Licence: Public Domain

Code: Select all

-- d = day of week (0 = saturday, 6 = friday)
-- m = month (3 = Mar, 13 = Jan, 14 = Feb; Jan and Feb are of previous year)
-- y = year
function firstXdayOfMonth(d, m, y)
  if (m == 1) then
    m = 13
    y = y - 1
  elseif (m == 2) then
    m = 14
    y = y - 1
  end
  local K = y % 100
  local J = math.floor(y/100)
  -- Zeller's congruence, solved for day of month
  local r = math.floor((13*(m+1))/5) + K + math.floor(K/4) + math.floor(J/4) - (2*J)
  r = r % 7
  if (r > d) then
    return 7 + 1 - r
  elseif (r == d) then
    return 7
  else
    return (7 + d - r) % 7
  end
end

function leapYear(y)
  if (y % 4 == 0 and y % 100 ~= 0) then
    return true
  elseif (y % 400 == 0) then
    return true
  else
    return false
  end
end

-- y = year, m = month of year, d = day of month
function date2yday(y, m, d)
  if (m == 1) then return d end
  local day = 0
  if leapYear(y) then
    mem.monthlengths[2] = 29
  else
    mem.monthlengths[2] = 28
  end
  for month=1,m-1 do
    day = day + mem.monthlengths[month]
  end
  day = day + d
  return day
end

--[[ Calculate whether Australia is observing DST at a given day of a given year
at a given hour. Use the helper date2yday if you do not have the day of
year available. --]]
function isAusDST(year, yday, hour)
  local finDate = mem.dstChangeovers[tostring(mem.dt.year) .. "e"]
  if finDate == nil then
    mem.dstChangeovers[tostring(mem.dt.year) .. "e"]
      = date2yday(mem.dt.year, mem.APRIL, firstXdayOfMonth(mem.SUNDAY, mem.APRIL, mem.dt.year))
    finDate = mem.dstChangeovers[tostring(mem.dt.year) .. "e"]
  end
  local startDate = mem.dstChangeovers[tostring(mem.dt.year) .. "b"]
  if startDate == nil then
    mem.dstChangeovers[tostring(mem.dt.year) .. "b"]
      = date2yday(mem.dt.year, mem.OCTOBER, firstXdayOfMonth(mem.SUNDAY, mem.OCTOBER, mem.dt.year))
    startDate = mem.dstChangeovers[tostring(mem.dt.year) .. "b"]
  end
  if yday < finDate or yday > startDate then
    return true
  elseif yday == finDate then
    return (not (hour >= 3))
  elseif yday == startDate then
    return hour >= 3
  else
    return false
  end
end

mem.dt = os.datetable()
if event.type == "program" then
  mem.SUNDAY = 1
  mem.APRIL = 4
  mem.OCTOBER = 10
  mem.monthlengths = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}
  mem.dstChangeovers = {}
  mem.dstChangeovers[tostring(mem.dt.year) .. "e"]
    = date2yday(mem.dt.year, mem.APRIL, firstXdayOfMonth(mem.SUNDAY, mem.APRIL, mem.dt.year))
  mem.dstChangeovers[tostring(mem.dt.year) .. "b"]
    = date2yday(mem.dt.year, mem.OCTOBER, firstXdayOfMonth(mem.SUNDAY, mem.OCTOBER, mem.dt.year))
  return
end

mem.dt.hour = mem.dt.hour + 10 -- assume server in CET
if mem.dt.isdst then
  mem.dt.hour = mem.dt.hour - 2
else
  mem.dt.hour = mem.dt.hour - 1
end

mem.dt.isdst = isAusDST(mem.dt.year, mem.dt.yday, mem.dt.hour)
if mem.dt.isdst then
  mem.dt.hour = mem.dt.hour + 1
end

if (mem.dt.hour > 23) then
  mem.dt.hour = mem.dt.hour % 24
  mem.dt.day = mem.dt.day + 1
  if (mem.dt.month ~= 2) then
    mem.monthdays = mem.monthlengths[mem.dt.month]
  else
    if mem.dt.year % 4 == 0 and mem.dt.year % 100 ~= 0 or mem.dt.year % 400 == 0 then
      mem.monthdays = 29
    else
      mem.monthdays = 28
    end
  end
  if (mem.dt.day > mem.monthdays) then
    mem.dt.month = mem.dt.month + 1
    mem.dt.day = 1
    if (mem.dt.month > 12) then
      mem.dt.year = mem.dt.year + 1
      mem.dt.month = 1
    end
  end
end

mem.dt.tzname = "AE"
if (mem.dt.isdst) then
  mem.dt.tzname = mem.dt.tzname .. "D"
else
  mem.dt.tzname = mem.dt.tzname .. "S"
end
mem.dt.tzname = mem.dt.tzname .. "T"

mem.datetime = string.format("%04d-%02d-%02dT%02d:%02d", mem.dt.year, mem.dt.month, mem.dt.day, mem.dt.hour, mem.dt.min)

digiline_send("datetime", 
  "Sydney/Melbourne/\n" ..
  "Canberra \n" ..
  mem.dt.tzname .. "\n" ..
  mem.datetime
)
interrupt(10)

Here is what it looks like (Luacontroller is behind):

[Ghaydn]

CODE

Well, that's exactly the complicated way i'm afraid of.
What I'm making is a transport card system, that I'm planning to use with hyperloop. And these cards are of two types: with limited number of rides and limited time. And for the second type I needed to somehow show card's's expiration date.
But recently I came up with simpler idea: just show amount of time left, i.e. instead of "expires may 20, 2024" show just "expires in 3 days". With this approach I don't need all that date calculation stuff.
Anyways, something like this definitely should be added into luacontroller mod:

Code: Select all

local function safe_date_convert(sec)
	if type(sec) == "number" and math.floor(sec) == sec then
		return os.date("*t", sec)
	end
	return {}
end
...
os = {
...
sec_to_datetable = safe_date_convert
...
}

[Arion18]

Hey, does anybody know how to combinate delayers and mese torches?

[Hybrid Dog]

Hey, does anybody know how to combinate delayers and mese torches?

delayer_and_mesetorch.png (231.18 KiB) Viewed 2065 times

[Arion18]

Hey, does anybody know how to combinate delayers and mese torches?

delayer_and_mesetorch.png

:]

[Fauxtonic]

After downloading the latest update to this mod on 10/16/24, the mod is crashing the game with the following error:

ModError: Runtime error from mod 'mesecons_doors' in callback on_mods_loaded(): ...64\minetest\bin\..\mods\mesecons\mesecons_doors\init.lua:135: bad argument #1 to 'pairs' (table expected, got nil)
stack traceback:
[C]: in function 'pairs'
...64\minetest\bin\..\mods\mesecons\mesecons_doors\init.lua:135: in function <...64\minetest\bin\..\mods\mesecons\mesecons_doors\init.lua:134>
...t 5.4.1 -win64\minetest\bin\..\builtin\game\register.lua:431: in function <...t 5.4.1 -win64\minetest\bin\..\builtin\game\register.lua:417>

[Nik09]

After downloading the latest update to this mod on 10/16/24, the mod is crashing the game with the following error:

ModError: Runtime error from mod 'mesecons_doors' in callback on_mods_loaded(): ...64\minetest\bin\..\mods\mesecons\mesecons_doors\init.lua:135: bad argument #1 to 'pairs' (table expected, got nil)
stack traceback:
[C]: in function 'pairs'
...64\minetest\bin\..\mods\mesecons\mesecons_doors\init.lua:135: in function <...64\minetest\bin\..\mods\mesecons\mesecons_doors\init.lua:134>
...t 5.4.1 -win64\minetest\bin\..\builtin\game\register.lua:431: in function <...t 5.4.1 -win64\minetest\bin\..\builtin\game\register.lua:417>

Thanks for reporting!
This doesn't happen with an up-to-date copy of minetest_game, at least on my machine. Do you use another game or mods which might override the minetest_game `doors` API? Feel free to post a list of all mods you're currently using.

GitHub Issue: https://github.com/minetest-mods/mesecons/issues/684

[Krock]

...t 5.4.1 -win64\minetest\bin\..\builtin\game\register.lua:431: in function <...t 5.4.1 -win64\minetest\bin\..\builtin\game\register.lua:417>

Your backtrace does not make sense. Here's the relevant code: https://github.com/minetest/minetest/bl ... #L417-L431

Your builtin directory might be outdated. Please install Minetest 5.4.1 to a new location and retry or install Minetest 5.9.1 (the most recent stable build) and retry.

[NicoKaiserHello]

how can I round in the Lua controller?

[Blockhead]

how can I round in the Lua controller?

You have a lot (but not all) of Lua's standard library available in the Luacontroller. The math.* functions available to Luacontorller include math.floor and math.ceil, which always round down and up respectively. I don't know why, but stock Lua doesn't include a "normal" rounding function that rounds upwards from 0.5. However, it's included in the main core (minetest) table as math.round, so that should probably be added to Luacontrollers if you ask me.

The usual solution for implementing round on your own in Lua is to add or subtract 0.5, then use floor or ceiling - see StackOverflow.

[NicoKaiserHello]

And what is the code from the card reader?

[NicoKaiserHello]

???

[Blockhead]

And what is the code from the card reader?

If you mean the one from digistuff, it is documented here.