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IRC log for #minetest, 2022-05-19

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All times shown according to UTC.

Time Nick Message
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01:49 erle i added grass to the maps https://mister-muffin.de/p/w34r.png
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02:39 Pexin erle: I was actually thinking about artistic renditions of sand dunes
02:40 erle Pexin give me an algoritm for small hills or so?
02:41 Pexin no, just to represent sand terrain
02:41 erle oh hmmm
02:41 erle but sand can also be flat
02:41 erle i should probably add a cactus icon hehe
02:42 Pexin not sure how to represent different terrain. typically such maps will indicate stuff like that no?
02:43 Pexin but again, the crude resolution drastically limits options
02:44 erle the size is 80, so a mapblock with default chunksize
02:44 erle if you want more, you can adjust it
02:44 erle 80×80 sorry
02:47 erle Pexin “find doors and render houses there”, is that a good idea in your opinion?
02:49 Pexin hm. N doors within a radius.. difference between a log cabin vs shopping mall vs corporate tower.. not sure, depends what the map might encounter?
02:51 Pexin I know some people who would strongly suggest train tracks
02:51 Pexin heh
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12:03 erle Pexin rail lines look like shit https://mister-muffin.de/p/gg6h.png
12:03 erle too modern
12:03 erle for this type of map
12:03 erle FYI i got the colors by doing this funny: local color = 10 + ( math.floor( ( x + z ) / 4 ) % 2 )
12:03 erle (10 and 11 are different palette colors for the train tracks)
12:15 erle subtle checkerboard pattern for handheld maps https://mister-muffin.de/p/Of00.png
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12:48 erle i now draw houses where there are doors: https://mister-muffin.de/p/BeuX.png
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14:15 erle https://mister-muffin.de/p/lCcE.png technically, this hill has the highest mountain, but i am not satisfied
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15:42 MTDiscord <x2048> it could be fun to play with "old" maps where some objects are missing or different.
15:46 MTDiscord <savilli> it's all fun until minetest crashes
15:47 MTDiscord <paradust> you may not be aware but this is a no crash zone 🚫
15:47 MTDiscord <paradust> :nobugs:
15:48 erle x2048 have any ideas for my medieval maps?
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15:51 MTDiscord <savilli> What do two minetest developers say to each other? "Can I crash at your server tonight?"
15:53 erle it would be funny if it weren't so sad
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17:26 erle maps now come with single flowers drawn in and an arrow that shows which way the player is looking in 45 degree increments https://mister-muffin.de/p/e9bG.png
17:28 MTDiscord <luatic> The arrow is a HUD element, right?
17:33 erle luatic yes, you can see it here: https://git.minetest.land/erlehmann/maps/commit/94523cbef67e3366111ee4e895a4dcdcbbe47a69
17:34 erle i am even generating the arrow textures myself hehehe https://git.minetest.land/erlehmann/maps/commit/5c7ddf881df446c075867aa916530435493c0862
17:34 Pexin urge to play wind waker rising
17:35 erle luatic what else would the arrow be?
17:36 Pexin erle: also I think that "subtle checkerboard" is unnecessary
17:37 erle Pexin in principle i agree – but several people originally had difficulties, as they expected a flat unshaded area to be water
17:38 Pexin hmm
17:38 erle how can i find a biome in minetest_game?
17:38 erle i need a desert
17:38 erle to add cactus picture hehe
17:39 Pexin hm. I don't recall if quicksand is in the base game, but it's the type of thing that realistically would definitely be marked on such a map..
17:39 erle nice
17:39 erle that's indeed a thing
17:39 MTDiscord <luatic> erle: painted to the map image
17:40 MTDiscord <luatic> (which would be unnecessarily wasteful)
17:40 erle luatic that would be horrible
17:40 erle luatic if you can figure out how to find mountain peaks, i'll draw them in
17:43 erle meanwhile, making an image encoder made me encounter a bunch of bugs in about everything that handles images
17:44 erle i definitely don't envy people making a PNG encoder, there's probably even more bullshit in the implementations
17:46 MTDiscord <luatic> erle: Not at all
17:46 MTDiscord <luatic> it's pretty straightforward, really, if you constrain yourself to ARGB8 and don't put too much effort into compression
17:47 erle that's the point
17:47 erle if you do exactly ONE thing
17:47 MTDiscord <luatic> https://github.com/appgurueu/modlib/blob/7989f4061549bf8057b10a2bf747e91615e9d95e/minetest/png.lua#L393-L462
17:47 MTDiscord <luatic> Yes, but that one thing fully suffices
17:48 erle for your use case
17:49 erle in general, what people don't expect is … whatever is not straight R8G8B8 or B8G8R8
17:49 MTDiscord <luatic> the interface uses colorspecs so it's fine
17:50 erle and then we get to decoding the things
17:50 erle you did write a decoder, did you?
17:50 erle if so, what's the funniest thing you found
17:51 MTDiscord <luatic> yes, I did write a decoder
17:51 erle and i bet that's where the bullshit comes in
17:51 MTDiscord <luatic> it absolutely is
17:51 MTDiscord <luatic> But I managed to keep the bullshit to a minimum so I'm happy
17:52 erle i think the image filter can change per scanline
17:52 erle can you handle that? :D
17:52 MTDiscord <luatic> yes, I can handle that
17:52 erle nice
17:52 MTDiscord <luatic> it even handles Adam7 interlacing
17:52 MTDiscord <luatic> it should support all PNG files
17:52 MTDiscord <luatic> it completely ignores ancillary chunks, but the spec allows that; it isn't necessary
17:54 erle which brings me to the question how to handle background chunks
17:55 erle i mean, minetest definitely does not handle them
17:55 erle wait, maybe i was wrong
17:56 erle nope, does not
18:01 erle luatic 16 bit grayscale + 16 bit alpha, do you speak it? :D
18:01 erle (minetest butchers such textures, obviously)
18:03 erle what is “temple” here? https://github.com/minetest/minetest/blob/master/doc/lua_api.txt#L4473
18:04 erle luatic 8 bit grayscale + 8 bit alpha also gets butchered
18:15 MTDiscord <ROllerozxa> good question, what the hell is "temple"
18:15 MTDiscord <ROllerozxa> > // Usually 'GENNOTIFY_DUNGEON', but mapgen v6 uses 'GENNOTIFY_TEMPLE' for desert dungeons.
18:15 MTDiscord <ROllerozxa> ah
18:16 MTDiscord <ROllerozxa> TIL v6 has built-in desert temples
18:19 MTDiscord <luatic> erle: By MT or by my reader? My reader was tested to handle such textures.
18:19 erle naisu
18:19 erle luatic minetest craps out on a bunch of uncommon test formats, haven't tested your stuff
18:20 erle test formats → color formats
18:20 erle sadly, it also craps the bed on surprisingly sensible stuff, but i guess everyone just avoided it
18:21 erle we should document more what combinations of features don't work
18:21 MTDiscord <luatic> I eagerly await your PRs in minetest_docs
18:21 erle luatic unfortunate that you don't have a writer for PNG that can do more than the minimum, because if you had, it would be a short route to stress tests
18:22 MTDiscord <luatic> You are aware of van Schaik's PNG suite, right?
18:23 erle yes but it does not allow to do it programmatically
18:24 erle also i am pretty sure it is not extensive enough
18:24 erle i mean most of it is *valid* files, that's already a smell for a test suite ;)
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22:42 erle hey everyone, here is my mod, you get a wieldable map (like in mcl_maps) in minetest_game if you rightclick with a mapping kit in hand https://git.minetest.land/erlehmann/maps
22:44 erle the red x is put at where the user was when the map was created. there is the treasure, obviously. this can also be used for treasure maps i guess.
22:45 erle luatic Pexin do you want to try it
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