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IRC log for #minetest, 2016-03-22

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All times shown according to UTC.

Time Nick Message
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01:31 air is it possible to register a callback to do something when a specific node is loaded or unloaded?
01:34 sofar what do you mean by "loaded"? as in mapblock emerge?
01:34 air yes
01:34 sofar what do you want to do with it?
01:35 air register the node with the mod, and then unregister it when the mapblock is unloaded
01:42 sofar and why do you want to do *that*
01:42 sofar ?
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01:44 air trying to optimize a mod that calls minetest.find_nodes_in_area() on a very large area
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04:21 sofar air: just got back from afk: why does your mod run minetest.find_nodes_in_area() on a very large scale?
04:28 air not my mod, https://github.com/tenplus1/protector
04:28 sofar yes, fine, but... why?
04:29 air it scans for protector nodes in the area when you dig
04:29 sofar ok, and you want to optimize it?
04:30 air they are increasing protector radius on xanadu from 5 to 10, which scans 8 times the area
04:30 air and some scans do a radius of 20
04:30 sofar I'd suggest a lua voxelmanip
04:30 air what is that?
04:33 air doesn't that mass update properties for many nodes?
04:33 sofar doesn't need to, can just discard the data
04:35 air I don't see anything in there that would help
04:35 sofar oh, it's a huge gain
04:36 sofar you can get 10^3 nodes of data in the same time as one
04:36 sofar (close to)
04:36 sofar and no jumps out of lua to look at the data
04:36 air but then iterate all the nodes in lua instead of in c?
04:36 sofar so lua can inspect and find the protector node without exiting it's contents
04:37 sofar it's context*
04:37 sofar iterate over the voxelmanip data in lua, yes
04:37 air wouldnt it be faster to let C iterate over the nodes and return a small list of those it found, than to do the same in slower lua?
04:42 sofar if your search is simple and find_nodes_in_area works for the use case
04:44 sofar some search cases it may be slower, like if you wouldn't be able to search for a particular one node (but a combo of nodes)
04:45 sofar I see where you're going though
04:45 sofar instead of searching, you just want to have a known list
04:47 air well, the list is optional since it produces garbage, but would the voxelmanip produce more garbage?
04:48 sofar that's not what I meant
04:48 sofar instead of having to search every single time when a person digs... why not store a list of known protector blocks?
04:49 air that is what I wanted to do, but I don't see a way to get the nodes when the mapblock loads
04:49 sofar lbm's can do that now
04:49 air I could have stored them in an octree
04:49 sofar just make them active on every load
04:50 air what about when the mapblock unloads?
04:50 sofar https://github.com/minetest/minetes​t/blob/master/doc/lua_api.txt#L3325
04:50 sofar can't, there's no event for unload
04:50 sofar run_at_every_load = true
04:50 air well, I saw lbms but useless if I can't unload
04:51 sofar not really, it just may become a large octree
04:51 sofar but you wouldn't ever need to store the octree offline :)
04:51 sofar since after a server restart... having an emptry octree is just fine!
04:51 sofar lbms will fill it again
04:51 air it could consume all server memory too :)
04:52 sofar if you just store pos, very unlikely
04:52 air the octree itself would
04:53 sofar would what?
04:53 air use all the memory
04:55 air if someone knew the mod was not unloading, they could place a single protector in as many mapblocks possible
04:56 sofar aside the academic exercise
04:57 sofar perhaps you should limit the amount of protectors a person may use
04:58 air not my choice, I'm just trying to make it faster
04:59 sofar if the risk of going OOM is too large, just use the node search
05:00 sofar and find_node_* is implemented in C++
05:01 sofar so it would be low-memory, and c++ accelerated
05:01 sofar a fairly good tradeoff
05:01 sofar what does the code do now?
05:02 air find_nodes_in_area?
05:02 sofar yes, that's implemented in C++
05:02 air right, I'm trying to implement the voxelmanip right now to test speed
05:20 air hehe, 3 nested for loops doing nothing at all take 12 times as long
05:31 sofar https://forum.minetest.net/v​iewtopic.php?f=3&t=14262 maybe of use to folks
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09:46 JamesTait !btc GBP
09:46 MinetestBot 1 BTC = 287.2100 £
09:46 JamesTait That's neat.
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10:08 TheDcoder Hello!
10:08 sfan5 hi
10:09 TheDcoder Thanks for instant reply, I think something is wrong with graphics in my laptop
10:09 TheDcoder Wait, I will upload the screenshot
10:10 TheDcoder http://www.pixhoster.info/f/2016-03/​4f765a648ea91494c0ff799369f42060.png
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10:10 TheDcoder The hand...
10:10 TheDcoder Is that how it is supposed to be? :-/
10:11 sfan5 not that's not how it is supposed to be
10:12 TheDcoder Oh :o
10:12 TheDcoder How can I fix it?
10:12 sfan5 you can either
10:12 TheDcoder ?
10:12 sfan5 1) wait for 0.4.14 to be released soon
10:12 sfan5 or
10:12 sfan5 2) download a more recent build from here https://forum.minetest.net/viewforum.php?f=42
10:12 TheDcoder Oh...
10:13 TheDcoder Does 0.4.13 contain a fix?
10:13 sfan5 no
10:13 TheDcoder I mean 0.4.14
10:13 TheDcoder sorry :P
10:13 TheDcoder typo
10:13 sfan5 yes it would
10:13 sfan5 but it isn't released yet
10:13 TheDcoder Yep, I know...
10:13 TheDcoder ARe the recent build stable?
10:14 sfan5 pretty stable
10:14 sfan5 it's rare to encounter problems with them
10:14 TheDcoder I will try then :)
10:15 TheDcoder Are all the people effect by this or only with some people with incompatible graphics?
10:15 sfan5 only happens on some graphic cards
10:16 TheDcoder Downloading the latest build now...
10:17 TheDcoder https://minetest.kitsunemimi.pw/builds/ - from your site.
10:17 TheDcoder Umm... I have a question about bots... Why does this channel have 2 bots? :P
10:18 sfan5 uh
10:18 sfan5 no idea really
10:19 TheDcoder Don't they conflict each other?
10:19 TheDcoder !help
10:19 MinetestBot https://github.com/sfan5/minetestb​ot-modules/blob/master/COMMANDS.md
10:19 sfan5 no
10:20 TheDcoder What does ShadowBot do?
10:20 TheDcoder ShadowBot: !help
10:22 TheDcoder That was real quick finding a bug, I can't type the name of the new world :(
10:23 TheDcoder The mouse operations work though...
10:24 TheDcoder I have to go...
10:24 TheDcoder See ya guys!
10:25 TheDcoder (P.S Anyone one can send me a memo, just use /msg MemoServ send TheDcoder <message>)
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10:29 Megaf Hi folks.
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11:03 redblade Is anyone having problems with a recent git causing the wooden fences (junglewood, etc) to be replaced with blocks resembling rope blocks?
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11:16 JiroTheOne !tell VanessaE Thanks for adding the skins, much appreciated. And thanks for the servers!
11:16 MinetestBot JiroTheOne: I'll pass that on when VanessaE is around
11:19 JiroTheOne !tell VanessaE Sorry to be a pain, skin for KatnixxEverdeen is borked please can you try this one http://www.planetminecraft.co​m/skin/katniss-skin-3220774/
11:19 MinetestBot JiroTheOne: I'll pass that on when VanessaE is around
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15:05 LNJ Hi guys! Do you want to write too or just want to join and leave?
15:06 * LNJ has got Debian GNU/Linux
15:06 JBB hi i just test seamonkeys ChatZilla
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15:55 MinetestBot [git] Rui914 -> minetest/minetest_game: Rename Glass Door (the obisian one) to Obsidian Glass Door 7cba7af https://git.io/vaQZz (2016-03-22T15:46:26Z)
15:55 MinetestBot [git] kilbith -> minetest/minetest_game: Books: Move page buttons at the bottom a71948c https://git.io/vaQZ2 (2016-03-22T15:46:19Z)
15:55 MinetestBot [git] kilbith -> minetest/minetest_game: Wooden Sign: Add group oddly_breakable_by_hand c3d2bc3 https://git.io/vaQZa (2016-03-22T15:46:13Z)
15:55 MinetestBot [git] paramat -> minetest/minetest_game: Default: Make some plant nodes non-flammable 7d55320 https://git.io/vaQZV (2016-03-22T15:46:07Z)
15:55 MinetestBot [git] paramat -> minetest/minetest_game: Default: Fix rotation errors for mapgen aspen and sapling jungletree 0d3bca7 https://git.io/vaQZw (2016-03-22T15:46:00Z)
15:55 MinetestBot [git] sofar -> minetest/minetest_game: Doors: Allow schematic placement of wooden doors. ffba9d9 https://git.io/vaQZr (2016-03-22T15:45:54Z)
15:55 MinetestBot [git] kilbith -> minetest/minetest_game: Creative: Code cleaning + Fix items moving in virtual inventory 1a5f89e https://git.io/vaQZo (2016-03-22T15:45:48Z)
15:55 MinetestBot [git] tenplus1 -> minetest/minetest_game: Changes to Screwdriver to add new drivers. 5189112 https://git.io/vaQZK (2016-03-22T15:45:39Z)
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22:00 sfan5 asie: >Any country works.   how about north korea
22:01 asie sfan5: Can you find Kim Jong-Un's X220?
22:01 asie If yes, I'll gladly take it
22:06 Mati^1 joined #minetest
22:06 * Mati^1 Hi All
22:10 Mati^1 ----->sofar heartily thank you for help Kasia girl RBA, Where I cooked for him his favorite food, tomorrow will take him to the hospital
22:10 sfan5 hello
22:10 Mati^1 with all my heart thank you!!!
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22:12 sofar Mati^1: thanks, that's good to hear
22:12 Mati^1 sofar herzlich DANK!!!
22:13 Mati^1 ;,,,) Kasia sagt heute mir Sie ist sehr dankbar !!!
22:14 Mati^1 sorry Detusch ist besser für mich
22:14 Mati^1 Sie hat heute für Maciek RBA paar sahe gekauft morgen fahrt Sie zu ihm
22:16 Mati^1 schlechte nachrichten Maciek wird zu Hospitium geschickt :(
22:17 sofar sehr gut
22:18 sofar das essen, naturlich ist gut
22:18 sofar ich verstehe das das hospitium ist nicht so gut
22:19 LNJ Hey ich dachte hier wird nur englisch gesprochen!
22:19 LNJ :)
22:20 Mati^1 hospitium -> Pflegeheim
22:20 Mati^1 Nursing home
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22:22 Mati^1 Essen bekommt jetzt besser von Kasia Private essen in krankenhaus ist das nur scheisse
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22:40 Mati^1 thx All see you later
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22:50 Void7 hi Dragonop
22:50 Dragonop Hi Void7
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22:51 Void7 hi samson :->
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