6 comments

  • hazbot64 days ago
    It&#x27;s fun to sit down and draw what the board looks like when you cut and flatten the torus before you watch the video!<p>Bonus points if you hit upon the other 2D projection that is useful (I didn&#x27;t)
  • SomeHacker4463 days ago
    Thanks for sharing!<p>Rotating the torus eventually hits singularities and I cannot continue the rotation. Maybe use a different mechanism for rotations that do not suffer from &quot;gimbal lock&quot;?<p>Would also be nice to rotate the torus along the circular axis. That is, rotate pieces&#x2F;rows from inside the doughnut hole to the outside.
  • chedoku64 days ago
    Shameless plug. If you&#x27;re into chess-themed puzzles, you might like: <a href="https:&#x2F;&#x2F;chedoku.com&#x2F;blog&#x2F;chessPuzzles" rel="nofollow">https:&#x2F;&#x2F;chedoku.com&#x2F;blog&#x2F;chessPuzzles</a>
    • mannymakes64 days ago
      interesting puzzle collection :)
  • sparrish64 days ago
    My favorite torus game is Tetris on a Torus<p><a href="https:&#x2F;&#x2F;www.benjoffe.com&#x2F;code&#x2F;games&#x2F;torus&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.benjoffe.com&#x2F;code&#x2F;games&#x2F;torus&#x2F;</a>
    • mannymakes64 days ago
      very neat. I&#x27;d say this is kinda on top of a torus, and more of a cylinder from the perspective of the Tetris pieces. not sure how you&#x27;d play on the surface of a torus, since you need to wrap around vertically too.
      • marco_z64 days ago
        E.g the pieces from the rows you eliminate reappear at random at the top row.
  • wavemode64 days ago
    Took me a while to realize it was a 3D torus and I had to drag around to see the whole board lol<p>Maybe when the page loads the torus should rotate around a bit
    • mannymakes64 days ago
      hmmm good idea, maybe we should have an auto-rotate that stops when you interact
      • quuxplusone63 days ago
        Better than an automatic smooth continuous motion would be an &quot;idle animation&quot;: after a few seconds swing the torus somewhat less than 45 degrees in a random direction and let it relax back into the original position. This suggests &quot;the torus can move&quot; without suggesting &quot;the torus moves [only] in this specific way.&quot; You need contradict not just the user&#x27;s intuition &quot;Torus stationary&quot; but much more importantly &quot;Torus non-interactive.&quot;<p>Likewise, if someone thought the pieces couldn&#x27;t be moved, you could idly wiggle the king pawn as a hint to pick it up.<p>Now, how anybody could look at a chess board and think the pieces were immovable, or look at a 3D torus render and think it was unrotatable, is beyond me. But if it&#x27;s a real problem, I think idle animation is a good fix.
  • fryz64 days ago
    looks like the white king&#x2F;queen aren&#x27;t on the right colors (queen goes on her color) - confused me a bit when trying to map the space to a 2d board
    • mannymakes64 days ago
      ahha true, I forgot this was the case. we like the setup this way as it has rotational symmetry, which more naturally extends to supporting 3+ players