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Show HN: Test your shape rotation skills

0xf00ff00f.github.io

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Re: Show HN: Test your shape rotation skills

#101

Post by cptskippy »

svet_0 wrote: post #8

Small bug: occasionally there are multiple matching pairs, although only 1 works (screenshot: https://ibb.co/JpRp0Pm ) Additionally, the auto rotation itself is mostly confusing, could be better to enable manual mouse rotation. Cool game nonetheless! Edit: The bug seems to be that shapes with different "DNA" can still be isometric in some cases: https://github.com/0xf00ff00f/rotator/blob/master/demo.cc#L4...

Ok so I'm not crazy. The shapes moving had me second guessing myself trying to compare them.

Re: Show HN: Test your shape rotation skills

#102

Post by exikyut »

A totally different style of game which also seriously stretches spatial reasoning: https://vladimirslepnev.itch.io/zigzag

Inspired by Super Hexagon (remember that?), you need to repeatedly tell a "snake" which way to go with the left and right arrow keys... while the game viewport twists and rotates randomly as it continually zooms out.

GoOd lUcK.

(It's from here, 1 month ago: https://news.ycombinator.com/item?id=29923707)

I incidentally find I have to mute the background music, as I really get into it (used to listen to it often!) and zone out... welp

(Also, for completeness - the APK link is sadly dead, but it still lives on on the scary APK sites that are out there, and my phone doesn't seem to mind it.)

Re: Show HN: Test your shape rotation skills

#103

Post by exikyut »

hexman wrote: post #32

10 shapes 12 sec/shape (2nd try, no brute-force, mobile) 16 shapes (3rd try) 18 shapes (4th try) 24 shapes (5th try, no brute-force) P.S. I had 7 years of art school in addition to engineering

-> 7

(Notices this comment) "...Hmph!" (Tries harder, focuses)

-> 12

-> 10

:(

Nothing like neural training, eh? Hmph :)

Now I'm curious what you think of https://news.ycombinator.com/item?id=30409693.

Re: Show HN: Test your shape rotation skills

#108

Post by fsckboy »

because of the "vanishing point" style 3d perspective it's difficult for me to tell relative sizes of things, so I had to frequently resort to counting bricks on the front leg vs the rear leg for extra-dimensional-L pieces; it was more about that than things like chirality. The result was, didn't really feel like a shape matching game to me, felt like a brick counting game. I guess in a certain way I was expecting something that felt more like those "which cube matches this piece of paper folded up" type matches

Also, don't mind being timed to the nth of a second, but I'd prefer a clock that was not so frenetic in my field of vision, just showing seconds would be enough.

Re: Show HN: Test your shape rotation skills

#110

Post by akomtu »

That's brutal. On my first attempt I've matched only 2 shapes. The naive approach is to match each pair, and with 15 pairs total, that's gonna take time, even though you need to check only 7.5 pairs on average. A better approach is to "hash" each shape and find the duplicate hash in linear time, which is 3 comparisons on average. The hash can be computed logically, by counting turns the shape takes, or, after looking at hundreds of such shapes, one should be able to "hash" shapes subconsciously, and that will be a dramatic speed up.

I suggest you make a similar problem: matching small isomorphic graphs. I think that's what a lot of software engineeting is really about.

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