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From: "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com>
Newsgroups: sci.math,comp.lang.c++
Subject: Re: Alien Code...
Date: Tue, 20 Aug 2024 23:19:23 -0700
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On 8/20/2024 11:17 PM, Chris M. Thomasson wrote:

I forgot to include comp.lang.c++. DAMN!!!


> Here is some older code of mine that I call "Alien Code". It's pretty 
> interesting. Here is an animation of it:
> 
> https://youtu.be/4VrMT18Rr84
> 
> Here is a fresh render along with some of my example code:
> 
> https://i.ibb.co/bWqrLhj/ct-p2.png
> 
> _________________
> namespace ct_alien_code
> {
>      void
>      iterate_0(
>          ct::plot::cairo::plot_2d& scene,
>          unsigned long ri,
>          unsigned long rn,
>          glm::vec2 origin,
>          unsigned long n
>      ) {
>          if (ri > rn) return;
> 
>          float angle_start = 1.f / (n - 1.f) * CT_PI2;
> 
>          glm::vec2 pt = { 1, 0 };
> 
>          glm::vec2 ptx = {
>              (glm::cos(angle_start) + glm::floor(glm::sin(angle_start)) 
> * 2.f + 1.f) * .5f,
>              glm::sin(angle_start) * .5f
>          };
> 
>          glm::vec2 dif = ptx - pt;
> 
>          float dis = abs(dif.x * dif.x + dif.y * dif.y);
> 
>          for (unsigned long i = 0; i < n; ++i)
>          {
>              float ir = i / (n - 1.f);
>              float angle = CT_PI2 * ir;
> 
>              glm::vec2 np = {
>                  (glm::cos(angle) + glm::floor(glm::sin(angle)) * 2.f + 
> 1.f) * .5f,
>                  (glm::sin(angle)) * .5f
>              };
> 
>              np += origin;
> 
>              glm::vec2 dif_np = np - ptx;
> 
>              float ddd = glm::abs(dif_np.x * dif_np.x + dif_np.y * 
> dif_np.y);
> 
>              if (ddd <= dis && i > 1)
>              {
>                  glm::vec2 offset = { 1, -1 };
> 
>                  scene.line(ptx, np, CT_RGBF(1, 0, 0));
>                  scene.line(-ptx, -np, CT_RGBF(1, 1, 0));
>              }
> 
>              {
>                  iterate_0(scene, ri + 1, rn, np, n);
>              }
> 
>              ptx = np;
>          }
>      }
> 
>      void
>      manifest(
>          ct::plot::cairo::plot_2d& scene
>      ) {
>          std::cout << "ct_alien_code::manifest()\n\n";
> 
>          {
>              {
>                  iterate_0(scene, 0, 1, { 0, 0 }, 100);
>              }
>          }
>      }
> }
> __________________