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MTDiscord |
<jordan4ibanez> It turns out Bien_ simply needed to ask that question, then they faded out of existence |
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Guest20 |
Palestine people are playing Minetest: https://trends.google.com/trends/explore?date=all&q=Minetest |
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muurkha |
In Gaza or in the West Bank? |
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MinetestBot |
[git] Wuzzy2 -> minetest/minetest: Add rotation support for wallmounted nodes in 'ceiling' or 'floor' mo… 08ee6d8 https://github.com/minetest/minetest/commit/08ee6d8d4b19016dabe3b88f8d50a39cff03bd79 (2024-01-17T16:47:06Z) |
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MinetestBot |
[git] sfan5 -> minetest/minetest: Send initial dummy packet as empty abf3142 https://github.com/minetest/minetest/commit/abf3142b267d9dcf5829cf890b1f6b0a49754bfa (2024-01-17T19:05:57Z) |
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MinetestBot |
[git] sfan5 -> minetest/minetest: Remove weird command procession limit 9f684ea https://github.com/minetest/minetest/commit/9f684eac928e7e089bd9c2d80571c9cf3485805c (2024-01-17T19:05:57Z) |
| 19:06 |
MinetestBot |
[git] sfan5 -> minetest/minetest: Time out when reliables can't be delivered 3987318 https://github.com/minetest/minetest/commit/3987318f09f4aabc21ca5cb89394038248973e42 (2024-01-17T19:05:57Z) |
| 19:06 |
MinetestBot |
[git] sfan5 -> minetest/minetest: Do not allocate packet quota to half-open connections 050152e https://github.com/minetest/minetest/commit/050152eb90bc6bed54c28817d156ff8cdd085638 (2024-01-17T19:05:57Z) |
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MinetestBot |
[git] (16 newer commits not shown) |
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| 20:37 |
MTDiscord |
<warr1024> If Bien_ hadn't faded out of existence then they'd already know the answer to their own question. |
| 20:49 |
MinetestBot |
[git] appgurueu -> minetest/minetest: Docs: Recommend against using PseudoRandom a8cf10b https://github.com/minetest/minetest/commit/a8cf10b0b523bf4c3234be29b0dd51e719cb00c1 (2024-01-17T20:48:17Z) |
| 20:50 |
MTDiscord |
<warr1024> @Lars were you the one who recommended to me to use math.random and just swap around seeds for deterministic pseudorandom sequences instead of using PcgRandom? |
| 20:51 |
MTDiscord |
<luatic> Yes |
| 20:51 |
MTDiscord |
<luatic> If you want maximum performance on JIT, I'd probably still recommend that |
| 20:51 |
MTDiscord |
<rollerozxa> of course it was lars, who other than the one who wrote this page on random number generators https://github.com/minetest/minetest_docs/blob/master/doc/random.adoc :) |
| 20:52 |
MTDiscord |
<luatic> But the purpose of this commit is just to establish that PcgRandom is basically strictly better than PseudoRandom |
| 20:52 |
MTDiscord |
<luatic> Comparing math.random and PcgRandom is a bit trickier, though again if you want perf on JIT, yeah you'll want math.random. Maybe I should document that too. |
| 20:52 |
MTDiscord |
<warr1024> What if I'm more concerned with portability than performance? Like having the sequence always be the same even if some platforms use a weird C rand function... |
| 20:52 |
MTDiscord |
<luatic> Then you shouldn't do that I suppose. That's a good point actually... |
| 20:53 |
MTDiscord |
<luatic> Might have to make spiraling down mapgen even slower :juanchi_face: |
| 20:53 |
MTDiscord |
<luatic> Though tbh if you play spiraling down on the same platform you should be fine |
| 20:54 |
MTDiscord |
<warr1024> There are trade offs to be made I suppose. I've got a handful of low volume cases though where I can tolerate some speed loss for the stronger consistency. Assuming of course that Pcg actually IS platform independent as implemented. |
| 20:54 |
Desour |
have you tried reimplemating PseudoRandom or PcgRandom with luajit btw, for comparison? |
| 20:55 |
MTDiscord |
<warr1024> I've also considered whether other RNG functions like ALFGs could work well for me. |
| 20:55 |
MTDiscord |
<luatic> LuaJIT ships its own PRNG btw |
| 20:55 |
MTDiscord |
<luatic> so on LuaJIT builds, it should be portable |
| 20:55 |
MTDiscord |
<luatic> if LuaJIT was more stable, I'd honestly consider dropping PUC for JIT |
| 20:55 |
MTDiscord |
<warr1024> I'd prefer implementations that are not dependent on the underlying implementation. If you get different results based on JIT vs PUC then that would annoy me. |
| 20:56 |
MTDiscord |
<luatic> Back of the napkin math says if you try to play Spiraling Down on PUC you'll have to wait like a second for mapblocks per chunk to generate :juanchi_face: |
| 20:56 |
Desour |
if you implement PseudoRandom/PcgRandom in luajit, you can fall back to minetest's C++ implementation on PUC |
| 20:57 |
MTDiscord |
<luatic> indeed |
| 20:57 |
MTDiscord |
<warr1024> As long as they're compatible, yeah. JIT should offer some performance benefits, potentially, depending on how smart LuaJIT is these days. |
| 20:58 |
MTDiscord |
<luatic> well, in conclusion, there is a theoretical issue where if you took Spiraling Down, played it on platform A, then moved to platform B, all while using PUC, you would get mapblocks which don't match |
| 20:58 |
Desour |
(and luajit has 64 bit numbers (e.g. 1ULL), for anyone who wants to do this) |
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| 21:59 |
Noriel |
hi! |
| 21:59 |
Noriel |
this is my first time using IRC |
| 21:59 |
MTDiscord |
<luatic> Hi, what's up? |
| 22:00 |
Noriel |
good, I was looking for a place to ask people about minetest, and I came across IRC |
| 22:00 |
Noriel |
wbu? |
| 22:01 |
MTDiscord |
<luatic> I'm one of those people you can ask about Minetest, so what's the matter? :) |
| 22:02 |
Noriel |
nothing complicated, I'm just trying out technic mod, and was wondering if trees are the only way to get leaves |
| 22:02 |
Noriel |
also, just wanted to say I love minetest :D |
| 22:09 |
Mantar |
Noriel: try the treecapitator mod, and enable "drop leaves" in the settings, it cuts the whole tree down in one go, and keeps leaves intact |
| 22:16 |
Noriel |
thanks Mantar! :D |
| 22:16 |
Mantar |
yw |
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MTDiscord |
<mistere_123> sfan5, are you open to PRs for a better WorldEdit GUI? Not that Im going to jump into that now, but that is a thing I have considered because I get annoyed at the workflow and bugs in the GUI often enough |
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