Eigenmoon: linear algebra puzzles by moonlight

(eigenmoon.vercel.app)

45 points | by jessicarumbelow 3 days ago ago

12 comments

  • JHonaker 3 hours ago

    It's a great start, but I find it very hard to understand what is happening because I can't control the animation as the "vector space" animates between the stages. The shapes of the gates are also very hard to distinguish (mostly all some form of rectangle) and the click targets aren't very forgiving.

    Outside of the UI/UX issues it's a great idea, and I would probably play all the levels if those were fixed.

    • quietbritishjim an hour ago

      Another UX issue is that, for me, dragging up and down rotates the scene in the opposite direction than I expect. Even once I realised it, I found it really hard to control, like wearing mirror glasses.

      • demibabs an hour ago

        This is such a bad error, wonder if they even tested it

    • JBits 2 hours ago

      I feel the same. It took a me a while to realise that I needed to click on the white tile to place a transformation. Though I'm now stuck on the second level as there aren't any tiles! The menu in the top left is very confusing.

  • abetusk 3 days ago

    Very pretty but needs some instructions or other affordances. I have no idea what to do.

    • jessicarumbelow 3 days ago

      I'll add a tutorial :)

    • danbruc 4 hours ago

      Construct a sequence of basic transformations that turns the initial grid into the target grid. Each of the portals performs a certain transformation, the ring one, for example, rotates around the axis selected at the top by the amount selected around the ring.

      • abetusk an hour ago

        ah! you have to click on the glowing white square in the middle!

        I was rotating all around and couldn't figure out what to actually do.

        This definitely needs a tutorial.

  • gadsdengrappler 43 minutes ago

    Really nice work. Fixing all the operations to one axis except rotation was a great decision.

  • underlipton 10 minutes ago

    The navigation is incredibly frustrating. You need to rethink orbiting/panning/zooming. Maybe allow for mirroring X/Y orbiting and loosening constraints.

  • huhtenberg 3 hours ago

    Is it meant to be playable on a desktop with a mouse?

    There is a hint in a form of a ripple, but left-clicking hinted element does nothing and left-click-and-holding rotates the puzzle, so it's not clear how to proceed.

  • Mithriil 2 hours ago

    Fun puzzles. I feel like gates are hard to distinguish from one another, except for the rotation and translation ones.