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IRC log for #minetest, 2019-03-18

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All times shown according to UTC.

Time Nick Message
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00:02 argyle77 Is there a difference between move_to and set_pos?  I'm not seeing one.
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00:19 GreenDimond argyle77: move_to interpolates the position between the original pos and the given pos
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00:19 paramat argyle77 yes, i think lua_api.txt explains
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00:29 argyle77 I've read it, but I'm just not seeing it.  I'll spend some more times experimenting.
00:30 p_gimeno * `move_to(pos, continuous=false)`: interpolated move
00:30 p_gimeno not much of an explanation
00:32 argyle77 like, how is it interpolated?  over what period of time?  Would a user see it if being transported?
00:33 rubenwardy https://rubenwardy.com/minetest_modding_book/en/map/objects.html#position-and-velocity
00:33 p_gimeno I think continuous=true means that if there's a wall in the middle, you'll move to the wall instead of the destination
00:33 rubenwardy > set_pos immediately sets the position, with no animation. If you’d like to smoothly animate an object to the new position, you should use move_to. This, unfortunately, only works for entities.
00:33 argyle77 Ah, yes, only works for entities.
00:34 argyle77 I haven't tried it on an entity yet.
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00:35 p_gimeno in 0.4.16 at least, when a player teleports it is seen as interpolated to the rest of the players
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00:35 p_gimeno to -> by
00:35 paramat ok yes lua_api.txt wasn't very clear
00:36 argyle77 Weird.
00:39 GreenDimond move_to doesnt seem to have a way to set the speed of movement
00:39 paramat it's instant, i think
00:39 GreenDimond It is not
00:39 paramat serverside
00:40 GreenDimond if it were instant that would defeat the purpose?
00:40 paramat then the client interpolates,
00:40 paramat so it appears non-instant
00:41 GreenDimond My point still stands
00:41 GreenDimond there is no way to set the speed of interpolated movement
00:41 GreenDimond client-side or not I dont care
00:41 paramat however it is an instant setting of position serverside
00:43 paramat i guess the speed is determined by the distance
00:43 p_gimeno now I wonder the difference between move_to(pos, true), move_to(pos, false) and set_pos(pos)
00:46 paramat 'move to' is always 'as fast as possible' because it's instant serverside
00:49 p_gimeno by my reading of the source, move_to(pos, false) does not send a position update to the client
00:49 GreenDimond what if the client is the server
00:50 p_gimeno the client is never the server, they are different threads at a minimum
00:50 rubenwardy GreenDimond: impossible
00:50 rubenwardy ^
00:51 GreenDimond But like
00:51 GreenDimond singleplayer
00:52 p_gimeno same thing, singleplayer is still a server + a client (just with a special name and restrictions
00:52 p_gimeno )
00:52 p_gimeno https://github.com/minetest/minetest/blob/master/src/content_sao.cpp#L685
00:52 GreenDimond right
00:52 GreenDimond but "as fast as possible" should be instant
00:52 p_gimeno I misread, it's the opposite: continuous doesn't seme to send the update
00:53 p_gimeno GreenDimond: the server still ticks at 0.1 seconds; the client still interpolates
00:53 GreenDimond I guess
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00:56 paramat ok. 'continuous' is false by default, only affects lua entities. but 'continuous' isn't documented!
00:57 paramat it controls 'sendPosition()', sending position to clients
01:02 paramat opened an issue for improving docs
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01:24 mathBrain I'm thinking of having a modding contest. Any opinions on that?
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01:45 p_gimeno is it possible to run two clients (in different worlds) without interference in the same computer? I guess I have to make the logfiles different, anything else?
01:46 ANAND logfiles can be same too
01:47 ANAND But I haven't exactly observed the logfiles for any anomalies, but they don't crash for sure
01:47 ANAND -But
01:48 ANAND It's better to have diff. log files for all intents and purposes, though :)
01:48 p_gimeno ok, thanks, good to know :)
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01:56 mathBrain If I want to create a modding contest. Would "Modding Discussions" be the right place to announce it?
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02:00 Emerald2 Hey paramat do you think that what scale and offset do could be better explained in the lua_api?
02:00 ANAND The sub-forum on forum.minetest.net? That seems to be the most appropriate place, but for the sake of visibility, I suggest "General" instead.
02:01 ANAND Emerald2: HUD element params?
02:01 Emerald2 NoiseParams.
02:01 ANAND Ah ok :)
02:02 paramat possibly. lua_api has to be specific and concise, so the explanation is not as simple as it could be
02:03 Emerald2 For those 2 things, there really isn't much of an explanation at all.
02:04 Emerald2 The other params get a more detailed explanation.
02:04 Emerald2 Scale: "Once all octaves have been combined, the result is multiplied by this.
02:04 Emerald2 Can be positive or negative."
02:04 Emerald2 Doesn't give any idea as to what scale effects.
02:05 paramat yes, a super-simple explanation is possible, maybe it could be added
02:05 Emerald2 Please. :)
02:05 paramat well, also https://github.com/minetest/minetest/blob/77cfc4fcd1d10d088e8a56e38bc195a5d6fe5e57/doc/lua_api.txt#L2633
02:07 paramat i've posted simpler explanations in the forum somewhere. 'offset' is the average value, 'scale' is the typical variation either side of 'offset'
02:08 Emerald2 Even putting something like that in the api would help us laypeople. :)
02:09 paramat yes will consider https://forum.minetest.net/viewtopic.php?f=47&t=15272 has lots of useful info
02:09 paramat noise explanations may be in there somewhere
02:10 Emerald2 Yeah I've done research elsewhere to help in my understanding. It's good to have a basic reference in the api though.
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03:35 fling Hello!
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10:20 MinetestBot [git] paramat -> minetest/minetest: num_emerge_threads: Initialise value to cope with setting syntax erro… c0fb5dd https://git.io/fjvKs (2019-03-18T10:19:53Z)
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10:56 air can logger colors be changed?
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11:57 Jean3219 Hello, @sfan5 thank you for commenting the issue on github "Minetest 5.0.0 not announcing to servers". When do you have time, that we can debug this issue? :)
11:57 sfan5 now
11:57 Jean3219 great, thanks!
11:58 Jean3219 so what could we do to debug this?
11:59 sfan5 what is the name and IP of your server? and is it running right now?
11:59 Jean3219 213.202.229.139 Port 30000
11:59 Jean3219 And yes, it is running right now
11:59 sfan5 !up 213.202.229.139
11:59 MinetestBot 213.202.229.139:30000 is up (5ms)
11:59 sfan5 right
12:01 sfan5 I don't see any server announcing with that IP
12:01 sfan5 you probably have IPv6 on your server, do you know the IPv6 address it has?
12:02 Jean3219 is that an ipv6 address? 2a01:480:2000:20:8ae:2dff:fe6c:1505
12:03 sfan5 yes
12:03 Jean3219 then this sould be the ipv6 of this server..
12:03 Jean3219 But on my minetest.conf I configured: enable_ipv6 = false
12:04 Jean3219 our should I enable it?
12:04 sfan5 there is usually not reason to disable it
12:05 sfan5 either:
12:05 sfan5 nevermind
12:05 sfan5 server_address = 213.202.229.139  should solve your issue
12:06 Jean3219 Thank you very much.... the whole time my config was "server_adress = 213.202.229.139" and not "server_adress = 213.202.229.139"...
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12:07 Jean3219 It now works, thank you very much!
12:07 sfan5 enable_ipv6 = false should have affected the announce request, so this bug should not have happened
12:07 sfan5 i'll look into that
12:07 p_gimeno ah single d?
12:09 p_gimeno Jean3219: is the local IP the same as the external IP?
12:09 Jean3219 my problem was that i typed "server_adress" instead of "server_address"..  Have a nice day!
12:10 p_gimeno if it's not, then I don't think there's a bug
12:11 Jean3219 in my case not I believe..
12:11 sfan5 p_gimeno: by default the server list will check the IP the announce request is coming from, if that's IPv6 but the server isn't listening on that, it won't work
12:12 p_gimeno ah
12:13 sfan5 Jean3219: by the way, enable_ipv6 = false is not needed and you can take it out of your config
12:14 Jean3219 thanks, yeah, I commented out ;)
12:26 Jean3219 Maybe it makes sence to update the Box under "Announcing Servers" on https://www.minetest.net/servers/ and adding "server_address = <IPAdressOfTheServer>" there
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12:46 Calinou server_address can be a domain name too, which will be referenced in the list
12:46 Calinou (and used by clients)
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14:07 MinetestBot [git] sfan5 -> minetest/minetest: httpfetch: Disable IPv6 here too if requested by settings (#8399) 426bdba https://git.io/fjv19 (2019-03-18T14:06:27Z)
14:10 p_gimeno nice catch
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15:47 koosha01 Hi guys.
15:47 koosha01 I got one question. Is it possible for a 5 version of minetest to connect to a 4 version one?
15:48 sfan5 no, that's intentional
15:48 koosha01 ?
15:49 sfan5 I am saying it's not possible and that this is by design
15:49 koosha01 Oh, right.
15:50 koosha01 How about vice versa?
15:50 sfan5 not possible either
15:51 koosha01 The major versions should be the same only, right?
15:51 sfan5 correct
15:52 koosha01 Thank you so much.
16:21 scr267 Is there an AFK kick in version 5?
16:21 rubenwardy not builtin
16:22 scr267 hum i thought so
16:22 scr267 ok thanks
16:28 sofar it's not too difficult to implement, there's several mods doing it
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17:52 Fixer !rainbow rubenwardy: burning eyes
17:52 MinetestBot 4rub7enw8ard3y: bur6ning e4yes
17:52 rubenwardy >_>
17:52 rubenwardy 🔥_🔥
17:53 benrob0329 My Eyes!
17:54 VanessaE the goggles do nothing!
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18:13 kaeza "Really, burning should be a combining modifier."
18:14 clavi so is carpathian in 5.0.0 stable?
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18:48 Fixer yes.
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19:09 BlackZ hiya, when i want 2 craft a bed it is not showing ?
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21:21 Telesight Hello all ...
21:22 Telesight Any Ubuntu specialist?
21:22 Telesight I try to update to Ubuntu 18.04 but get an error
21:23 Calinou you could try #ubuntu
21:23 Telesight E: GPG error: http://archives.ubuntu.com bionic InRelease: Clearsigned file isn't valid, got 'NODATA' (does the network require authentication?)
21:23 Calinou (also, search the error message online, it may give you answers)
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21:24 Telesight Already searched online
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21:24 Telesight It is for the update to Minetest 5.0.0
21:25 sfan5 sounds like your sources.list is broken
21:26 Telesight I already checked the sources.list and compared it with Ubuntu examples
21:28 sfan5 >deb http://us.archive.ubuntu.com/ubuntu/ bionic main restricted
21:29 sfan5 is that what it says?
21:31 erstazi Telesight: https://askubuntu.com/questions/474549/got-nodata-issue-nodata-does-the-network-require-authentication << nasty ISP proxy? 1st or 2nd answer should resolve it.
21:31 Telesight @sfan5 Yes
21:33 Telesight @erstazi I have to find that out ...
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21:43 makayabou hello, sorry i couldn't find info elsewhere: how can i retrieve schematic's raw data (at least size) from .mts file ?
21:45 sfan5 https://github.com/minetest/minetest/blob/master/src/mapgen/mg_schematic.cpp#L253
21:45 sfan5 this is the function that loads schematics, it should give you enough info
21:46 makayabou thanks for the link, I never dare look inside source code when i don't find info in Lua Api doc..
21:47 p_gimeno https://dev.minetest.net/Minetest_Schematic_File_Format
21:47 p_gimeno that's a bit more human-readable :)
21:56 makayabou Thank you that's a bit more me-no-dev readable.. But it is a bit too complicated for me.. I had tried first to catch minetest.deserialize("fullpath.mts") but nothing.
21:57 makayabou After trying to read your docs, i tried to get fullpath.mts[u16] then I realized it was stupid.. I don't even know what are big-endian byte and i don't know how to get to them...
21:58 makayabou tried print(dump(schematic_file["u16"]))....
21:58 p_gimeno makayabou: you'd need to use io.open on the file and read a few bytes from it into a string
21:59 makayabou ah yes i see..
22:00 p_gimeno in the string, the first 4 bytes should be "MTSM", the next two bytes would always be 0 and 4, the next two bytes give the size X, etc.
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22:02 p_gimeno makayabou: if you read the first 12 bytes into a string called s, this will give you the size X: s:byte(7)*256 + s:byte(8)
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22:02 p_gimeno similarly the sizes Y and Z can be obtaining by changing 7 and 8 to 9 and 10 for Y and 11 and 12 for Z
22:06 makayabou p_gimeno thanks for all that, I'll try
22:08 p_gimeno if you have lua 5.3, decoding is somewhat simpler, but then you lose compatibility with 99% of the installations :)
22:08 sfan5 100% actually, minetest can not be built with lua 5.3
22:09 p_gimeno oh oops
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22:21 MinetestBot [git] Niwla23 -> minetest/minetest_game: Mapping kit recipe: Use "group:stick" instead of "default:stick" eaf6eac https://git.io/fjvFL (2019-03-18T22:20:24Z)
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22:50 makayabou p_gimeno: I don't get the *256, it gives me a hudge result.. I don't know how to read only first 12 bytes of file. I can't understand anything with output of bytes, I can't see MTSM in the first 4, ... I tried to open the file with "b" option but it's not better..
22:51 p_gimeno makayabou: sounds like it's not a .mts file you're reading if it doesn't begin with MTSM
22:52 p_gimeno makayabou: do you have a link to an example file you're trying to read?
22:53 makayabou The file is okay when using minetest.place_schematic(pos,filename,...)
22:54 makayabou It's more I really don't know how to write lua code and code in general, just trying to learn, and I should have make a mistake.
22:55 p_gimeno makayabou: this is an example .mts file: https://paste.scratchbook.ch/view/c683fb6f
22:55 makayabou I created local s = io.open(filename,"r"):read()
22:56 makayabou then should print(s:byte(7)*256+s:byte(8)) return me the x size of mts ?
22:56 sfan5 no
22:56 p_gimeno if it's a real mts, yes
22:56 sfan5 you need to read things from the file first
22:57 sfan5 nevermind
22:57 sfan5 you did
22:57 sfan5 does :read() do the same as :read("*all") ?
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22:59 makayabou https://paste.scratchbook.ch/view/25252483
23:01 diemartin I think no arg is "*l" (read a line)
23:01 p_gimeno makayabou: try read(12) instead of read()
23:03 p_gimeno https://paste.scratchbook.ch/view/d6e53e81 worked as expected for me
23:03 diemartin https://www.lua.org/manual/5.1/manual.html#pdf-file:read
23:06 p_gimeno also, it's not good style to leave the file open :)
23:07 makayabou Yes it works! read() was not good, it's ok with "*all" and didn't try yet with 12.
23:07 makayabou Yes, i close it after
23:08 makayabou diemartin: yes, obvious after I get it !
23:08 p_gimeno well, you don't need to read the whole file into memory just to get the size, it's a waste of memory
23:08 p_gimeno you only need the first 12 bytes
23:09 makayabou thanks everyone, I learned a lot of things with it and it's a big step for my project !
23:09 makayabou yes I will use read(12)
23:09 p_gimeno !next
23:09 MinetestBot Another satisfied customer. Next!
23:09 diemartin Yw
23:10 makayabou Totally!
23:17 p_gimeno is there any interest in animated chests?
23:19 kaeza Yes.
23:20 p_gimeno from what I've seen so far, it seems that an animated model suffices, no changes to the code would be needed

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