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<FromGitter>
<bararchy> @orbital-harmonix sounds interesting , what are you building ? Remote control via code? Is it Bluetooth controlled?
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<FromGitter>
<CaDs> I added documentation for Kernel#sprintf method (https://github.com/crystal-lang/crystal/pull/5762) ⏎ Please let me know if there is anything else I should do regarding this PR. ⏎ Thanks
<FromGitter>
<bararchy> @CaDs nice work, you should @ both RX14 and @straight-shoota so they can review it
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<FromGitter>
<bararchy> interesting how much lines of code to make it work in Crystal
<FromGitter>
<bararchy> he said 1000 lines of Rust without dependencies
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<Groogy_>
haha that's cool
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<FromGitter>
<straight-shoota> @CaDs Looks good to me, we're just missing another member review and approval.
<FromGitter>
<straight-shoota> Unfortunately that's the reason why many PRs are stalled...
<FromGitter>
<CaDs> @straight-shoota thanks for the reply. No problem I just wanted to know if there is anything else I should be changing for that PR. I guess eventually it will be merged :)
<FromGitter>
<bararchy> @straight-shoota sounds like there should be more core-members, or, "PR approvel" staff, how about seeing if someone from the community is wiling to step up?
<wuehlmaus>
i am interested, Arch Linux moved away from LLVM-5 but still it compiles crystal-git. So llvm6 and crystal seem not to be far away, right?
<FromGitter>
<bararchy> wuehlmaus LLVM6 is supported AFAIK
<wuehlmaus>
yep, it does work here with llvm@5 and does not work with llvm which is 6 here. i had to do make clean. now it did compile. but as it works in Arch it is probably a minor issue that will be solved soon.
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<FromGitter>
<Qwerp-Derp> Can anyone help me un-closure the proc in `add_menu`?
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<FromGitter>
<ArtLinkov> Groogy I was already asleep when you sent the message yesterday :) ⏎ Can you point me to the place in the code where the problematic translation happens?
<Groogy_>
the projected buttons doesn't seem to relate to the translation of the camera at all either :/
<Groogy_>
though if I switch around the numbers in the Vector.project then I am back to that translation breaks the projection
<Groogy_>
now I am at the closest to "working", I can move around but rotating is reversed it seems
<FromGitter>
<bararchy> Groogy_ I'll give you @ArtLinkov back in 20 min ;) I'm making him do some Qlearning tunning
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<FromGitter>
<ArtLinkov> Groogy I'll take a look
<Groogy_>
thanks, ask em anything that can help you about it
<Groogy_>
but in essence, that state that I have it, if I move it works fine. If I rotate, the ray will be off by a little in the opposite direction of my rotation
<Groogy_>
if I do not rotate, only translate then it works exactly like expected
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<crystal-gh>
[crystal] RX14 closed pull request #5873: Fix a bug and make #read doc more clear in io.cr (master...master) https://git.io/vxuEk
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<FromGitter>
<builtap_twitter> @heaven31415 When looking into stdio I wanted to find the equivalent of python's `sys.stdin.buffer` read/write, also how to call a native app via a subprocess...
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<FromGitter>
<bew> Not faster, or slower, it would be the same, just clearer in semantic
<FromGitter>
<ryankshah> Ahh that's agreeable
<FromGitter>
<bew> Or just `map` since you don't need the index anymore
<FromGitter>
<ryankshah> > Also I'm trying to recreate this java code: ⏎ ⏎ ``` code paste, see link``` ⏎ ⏎ where the arraycopy is the function i asked above earlier and bytes is the original `String.to_s.to_a` [https://gitter.im/crystal-lang/crystal?at=5abaab41e3d0b1ff2c743552]
<FromGitter>
<bew> What are you actually trying to do? (at a higher level)
<FromGitter>
<ryankshah> Implement Murmurhash
<FromGitter>
<ryankshah> I'm trying to put the original bytes at the offset
<FromGitter>
<bew> Did you tried to follow the algorithm on wikipedia, or even the C implementation? (https://en.m.wikipedia.org/wiki/MurmurHash) it might be easier to copy to crystal than the Java one i think
<FromGitter>
<ryankshah> Its not actually a hard conversion from Java, its just the copy function for putting the original bytes at the offset that I am having trouble with
<FromGitter>
<bew> Hmm yes maybe, I'm just wondering why you need to replace some bytes.. A hash function will calculate a hash right? It shouldn't mutate anything?
<FromGitter>
<bew> (and a hash is just a number iirc)
<FromGitter>
<ryankshah> Its for the test
<FromGitter>
<ryankshah> Not for the actual function :)
<FromGitter>
<bew> Ah x) makes more sense
<FromGitter>
<ryankshah> Yeah! Should have mentioned this xD
<FromGitter>
<ryankshah> Like once I get this offset copy thing figured out, I can fully test my x32 implementation
<FromGitter>
<bew> So you have a string and you want to replace a part of it right?
<FromGitter>
<ryankshah> I had a string and originally converted it to the Int8 array
<FromGitter>
<ryankshah> Now I want to create a copy of this original array and put the original bytes from the original array at the offset position
<FromGitter>
<bew> Hmm I don't think an array is good here, maybe a slice is enough. Why did you convert to array?
<FromGitter>
<ryankshah> Because my implementation is using `Array`s originally, but even using `Slice` I still encounter the same issue.
<FromGitter>
<ryankshah> That is pretty similar to `dup`
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<FromGitter>
<ryankshah> But again, even with the easier way to manipulate memory i still have the same problem of not figuring out how to do what I need
<FromGitter>
<bew> Well dup will create a duplicate of an object, not part of it
<FromGitter>
<bew> I'm sorry I don't reply directly to your question, I hope you won't take it wrong
<FromGitter>
<ryankshah> It's okay, I prefer to try figure it out myself before asking for help and showing what I have tried :)
<crystal-gh>
[crystal] straight-shoota opened pull request #5878: Fix typo in IO doc (master...patch-1) https://git.io/vxgoA
<FromGitter>
<bew> So the 2 java lines are actually creating a new 'array' of byte, bigger than `bytes` by `offset`, then copy the content of `bytes` to the end of the new 'array'
<FromGitter>
<bew> Not the end, but on the right until the end
<FromGitter>
<ryankshah> Oh okay that makes a bit more sense..
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<FromGitter>
<bew> So here you could do `new = Bytes.new(bytes.size + offset)` then `bytes.copy_to(new + offset)`
<FromGitter>
<bew> (can't try right know, I'm on my phone, but it should be it)
<FromGitter>
<ryankshah> would it be `bytes.copy_to(new + offset)`?
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<FromGitter>
<ryankshah> Also I think I would be using `newarray = Array(Int8).new(bytes.size + offset)`
<FromGitter>
<bew> Yeah that shoukd do it
<FromGitter>
<bew> I'd suggest you to use Bytes instead of Array though for your implementation