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IRC log for #minetest, 2015-07-10

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Time Nick Message
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01:20 Sokomine minetest.decompress complains when i feed it the data from a compressed file; gunzip lists "defla" as method; so i'm a bit puzzled. why does decompression fail under mt, but not on the shell? any workaround?
01:22 Sokomine the error i get is "zerr: invalid or incomplete deflate data"
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01:43 Sokomine no ideas?
01:43 Sokomine it does work fine on the compressed streams in the .mts schematic files
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04:52 swift110-phone Hey
04:55 exio4 hi
04:55 exio4 kaeza: ping?
04:55 kaeza exio4, pong
04:56 exio4 kaeza: care to check why I am getting `attempt to call string value` when loading https://github.com/EXio4/devi​l/blob/master/common/api.lua ?
04:57 exio4 I know the problem is in function daemon.register(typ, options) ... end, because removing it doesn't give me that error, but the syntax seems ok
04:59 kaeza exio4, 'else if' should be 'elseif'; from what I see, that shouldn't even run
04:59 exio4 ... I don't get it
04:59 exio4 kaeza: thanks
04:59 exio4 I thought that kind of stuff would throw a syntax error or so
05:00 kaeza exio4, depends on how you're loading it
05:00 kaeza is it run in a "protected" context (via `pcall`)? if so, how are you reporting the error?
05:00 exio4 yes, pcall
05:01 exio4 kaeza: getting the last value in the stack
05:01 exio4 hm, lemme guess, there may be more than one value?
05:03 kaeza translate this for me: https://github.com/EXio4/devil/blo​b/master/src/Devil/Daemons.hs#L98
05:04 exio4 heh, pcall' is just a "wrapper" around pcall, (defined @ L182), it's just doing pcall, if the result is not zero, it'll pop the last value from the stack and throw an exception in that thread with the string there (+daemonName)
05:06 exio4 well, thanks, <_<
05:06 exio4 I feel stupid, I didn't realize it was a syntax mistake
05:07 kaeza hmm... I think you may be somehow calling the syntax error message
05:08 kaeza or I don't have any idea what I'm talking about
05:09 kaeza so you rawgeti `cond`, whatever that means
05:09 kaeza and immediately pcall this value
05:10 exio4 rawgeti is getting the value from a reference, AFAIK
05:10 exio4 (I get the "reference" when calling the register function)
05:10 exio4 ... actually, I am not sure
05:10 kaeza yes, but where do you store `cond`?
05:10 exio4 what do you mean?
05:10 kaeza or rather, where do you get it from
05:11 exio4 an `IORef` would be the equivalent of a mutable reference, btw
05:11 exio4 kaeza: the BusyWait datatype has three values, the first is the seconds between checks, the other two are the refs
05:11 kaeza sorry, I'm kinda new to these kinds of langs; trying to wrap my head around it
05:11 exio4 nah, it's ok :P
05:12 kaeza ah I see
05:12 exio4 busyWait l daemonName (BusyWait wakeupDelay cond action) =
05:12 exio4 (BusyWait wakeupDelay cond action) is basically "pattern matching" (aka de-structuring the thing I passed as parameter, giving me the three things inside it)
05:19 kaeza so where do you get the original `cond`s and `action`s?
05:19 exio4 registerDaemon
05:19 exio4 the code is wrong, though, I think
05:21 kaeza I notice you use `condition` in `register_daemon` in your test daemon, but I see no code to get this field from the table, unless again I'm reading this wrong
05:22 kaeza eh, register_daemon is in api.lua nvm
05:22 exio4 kaeza, the code gets it from the parameters (because I didn't want to do any kind of error checking from Haskell until I get comfortable with the lua c api), which if I read my code correctly, is reading from the parameters.. in the wrong order
05:23 kaeza yes, I see that now
05:24 kaeza you have `registerDaemon ref daemonName env l` (`registerDaemon` is called `_internal_register_daemon` in lua)
05:24 exio4 yeah
05:24 kaeza but you pass the condition and action instead of whatever `env` and `l` mean
05:25 exio4 env is the "config environment" (you can define config: abc: 42 in the config file and you'll have access to that from Lua)
05:25 exio4 kaeza: the first three variables (ref, daemonName, and env) are "constants" that stay in the closure
05:27 exio4 (you can think of them as local variables in an object, if you want to see some kind of analogy), LuaState -> IO CInt is "the final thing"
05:28 kaeza I get it now; and `l` gets the Lua parameters somehow?
05:28 exio4 l is the lua state
05:28 exio4 I am using bindings that are a really thin layer over the C API
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05:36 kaeza as far as I can see, all is well there. where is luaError defined?
05:36 kaeza well, only thing I see is that you may cause a stack overflow with I'm looking at this: https://github.com/EXio4/devil/blo​b/master/src/Devil/Daemons.hs#L174
05:36 kaeza (Lua stack overflow)
05:37 kaeza s/I'm looking at this//
05:38 exio4 kaeza: luaError is defined right there, L185
05:39 exio4 kaeza: also, how would L174 "cause" a stack overflow?
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05:47 exio4 kaeza: thanks, btw!
05:48 kaeza actually, not overflow, but slightly wrong
05:48 kaeza exio4, now this is personal
05:48 exio4 damn
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07:09 crecca XK
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07:13 Krock * Did you mean xkcd.com ?*
07:16 technomancy I can't find any docs for the forth computer that's included in technic_game
07:17 technomancy is it supposed to be able to execute forth?
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07:19 technomancy it looks like the digiline_events table is never populated
07:21 TBC_x do you mean WORDS?
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07:26 technomancy it looks like forth_computer may have been superseded by novatux/turtle
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08:04 crecca Krock: I ment C-x C-k, actually
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09:14 JamesTait Good morning all; happy Friday, and happy Don’t Step On A Bee Day! 😃
09:15 technomancy every day is Don't Step On A Bee Day in my book
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09:18 JamesTait technomancy++
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15:14 xenkey hi
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15:30 Jordach sfan5 trying to make me do something http://i.imgur.com/QNZQAbG.webm
15:31 sfan5 Jordach: meoww
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15:32 Jordach reasons why i don't have cups of tea
15:32 Jordach http://i.imgur.com/kbWgOw3.jpg
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16:33 luizrpgluiz hi all
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17:05 MinetestBot [git] nerzhul -> minetest/minetest: Little coding style fix on porting.h e6f0178 http://git.io/vq5WZ (2015-07-10T19:04:05+02:00)
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19:12 blaise 14:12:05: ERROR[main]: ERROR: An unhandled exception occurred: ServerEnvironment::loadMeta(): EnvArgsEnd not found!
19:12 blaise =(
19:17 Sokomine blaise: no problem. just copy an anv_meta.txt from another world into that world's folder. game time will have changed, but who cares about that...
19:18 blaise o.O
19:18 blaise what if I don't have another world?
19:18 blaise it's my dedicated linux server
19:18 Sokomine start a new world?
19:19 blaise env_meta.txt says nothing
19:19 Sokomine can be singleplayer. the env_meta.txt doesn't contain that much information
19:19 blaise empty file
19:19 Sokomine yes. that's the bug. just take the env_meta.txt from another world...can be a new singleplayer world or anything...
19:19 Amaz http://pastie.org/10285204
19:19 Amaz Random (working) env_meta.txt
19:20 blaise so like, gametime = 16
19:20 Sokomine that file really doesn't contain much information. you can create it by hand if you take a look at its structure. all it contains is how long the world has run and which ingame-time it currently has
19:20 blaise does that mean 16 hour days ?
19:20 Sokomine just use anything you want. if the game doesn't start with a time you like, type /time 6000 for day and /time 0 for night
19:21 Sokomine it's luckily one of the easiest problems a server might encounter :-) nothing lost if it's just that file
19:25 blaise I guess the setting that makes days 24 hours is in minetest.conf
19:25 blaise lmao
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19:37 daswort what is the size of a block? (not node)
19:37 Krock 16x16x16 nodes
19:39 daswort thaks
19:39 daswort *thanks
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19:56 Krock np
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19:59 est31 if somebody has time, could they do the testing required for #2885 ?
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20:08 TheWild oh, somebody touched the mapblock stuff. Krock, I've looked into the Minetest code and it seems that Mapblock always was 16x16x16. Someone even tried with 32x32x32 but left only comment claiming it was too slow.
20:08 est31 ?
20:08 TheWild However... can I be sure Minetest will stay with 16x16x16
20:09 Krock it always used 16^3, so why should it change?
20:09 est31 TheWild, depends on your usecase
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20:10 est31 also I wonder on which level you want to deal with mapblocks
20:11 est31 for example we can serialize mapblocks into the mapfile as 32x32x32 in future but leave it as 16x16x16 for the network
20:11 est31 and leave it as such for other parts too
20:13 TheWild say, I want to create map editing library (like we have Substrate for MC). I'm not sure whether I could hardcode number 16 or do some more work to make it changeable (e.g. support for newer versions)
20:14 est31 if we change that, we will change other things too in future
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20:15 TheWild ok, thanks
20:21 MinetestBot [git] kwolekr -> minetest/minetest: Fix damage flash when damage disabled 1a1774a http://git.io/vqdXw (2015-07-10T15:58:57-04:00)
20:21 MinetestBot [git] kwolekr -> minetest/minetest: Misc. minor fixes 8eb272c http://git.io/vqdXr (2015-07-10T15:58:57-04:00)
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20:30 yaman Is there a way to slow down digging speed of player with a mod?
20:31 Krock increase the groups values
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20:33 yaman I mean the digging speed for all blocks
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20:41 Krock increase tool digging speed
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20:54 MinetestBot [git] kilbith -> minetest/minetest: Fix remnant bugs on mainmenu c3dead7 http://git.io/vqdNc (2015-07-10T16:52:57-04:00)
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21:03 yaman can you increase hand digging speed as well?
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21:04 est31 yes!
21:04 est31 you can practically control this per-player
21:04 est31 every player has a custom inventory "hand"
21:04 est31 you can change either how it looks, or how it behaves
21:05 est31 at least if Im right
21:07 yaman thank you
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21:37 red1 the reset password page still dosn't work
21:38 Sokomine does anyone know how why     local data_string = minetest.decompress(compressed_data, "deflate" );     fails on a file that can be uncompressed perfectly well with gunzip? (compressed_data contains the data read from the file)
21:38 red1 https://forum.minetest.net​/ucp.php?mode=sendpassword says it send an email an i get no email
21:39 yaman how is hud_set_hotbar_itemcount() used? I am getting "attempt to call global 'hud_set_hotbar_itemcount' (a nil value)
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22:52 kaeza Greetings
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23:24 MinetestBot [git] gravgun -> minetest/minetest_game: Improved stairs model, v2 8a7af21 http://git.io/vqF61 (2015-07-11T00:22:18+01:00)
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23:28 Pilcrow182 hi guys. for the purpose of storing/recalling a position into/from a string, is it better to use minetest.serialize and minetest.deserialize, or minetest.hash_node_position and minetest.get_position_from_hash?
23:32 kaeza Pilcrow182, there's also minetest.pos_to_string() and string_to_pos()
23:32 kaeza it depends on how "readable" you want to make these (e.g. if the user will be able to edit the string at all)
23:33 Pilcrow182 ah, yes. forgot about pos_to_string, actually. but no, there will be no editing, just comparing a position to one stored in some metadata.
23:34 Pilcrow182 as in, checking if the stored position is the same as a given position.
23:34 kaeza if you don't need fractional positions, probably the hash_node_position family
23:35 Pilcrow182 that's what I was thinking, but wanted to ask first. basic math seems less complex than string concatenation/splitting...  :P
23:35 Pilcrow182 anyways, thanks for the help, kaeza  :)
23:36 kaeza sure :)
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