https://github.com/jotavare/spinning-ascii-donut-c

A straightforward ASCII spinning donut implemented in C.
https://github.com/jotavare/spinning-ascii-donut-c

c cos sin spinning-donut

Last synced: 16 days ago
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A straightforward ASCII spinning donut implemented in C.

• Host: GitHub
• URL: https://github.com/jotavare/spinning-ascii-donut-c
• Owner: jotavare
• License: mit
• Created: 2024-05-29T15:32:26.000Z (8 months ago)
• Default Branch: main
• Last Pushed: 2024-06-27T00:15:08.000Z (7 months ago)
• Last Synced: 2024-11-08T23:33:26.726Z (2 months ago)
• Topics: c, cos, sin, spinning-donut
• Language: C
• Homepage:
• Size: 16.6 KB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
## ABOUT

This is a straightforward ASCII spinning donut implemented in `C`. Inspired by [Andy Sloane (a1k0n)](https://www.a1k0n.net/about.html) original `donut.c` from 2006. While it requires some understanding of mathematics, it remains a compact and relatively easy project, especially when following a guide. There are two available versions: one utilizing a math library and another without it.

## REFERENCES

| Link                                                                                                     | Source    |

| :------------------------------------------------------------------------------------------------------- | :-------- |

| [Understanding the functionality of donut.c](https://www.a1k0n.net/2011/07/20/donut-math.html)           | Website   |

| [Optimizing donut.c without a math library](https://www.a1k0n.net/2021/01/13/optimizing-donut.html)      | Website   |

## DONUT

```

             k;double sin()

         ,cos();main(){float A=

       0,B=0,i,j,z[1760];char b[

     1760];printf("\x1b[2J");for(;;

  ){memset(b,32,1760);memset(z,0,7040)

  ;for(j=0;6.28>j;j+=0.07)for(i=0;6.28

 >i;i+=0.02){float c=sin(i),d=cos(j),e=

 sin(A),f=sin(j),g=cos(A),h=d+2,D=1/(c*

 h*e+f*g+5),l=cos      (i),m=cos(B),n=s\

in(B),t=c*h*g-f*        e;int x=40+30*D*

(l*h*m-t*n),y=            12+15*D*(l*h*n

+t*m),o=x+80*y,          N=8*((f*e-c*d*g

 )*m-c*d*e-f*g-l        *d*n);if(22>y&&

 y>0&&x>0&&80>x&&D>z[o]){z[o]=D;;;b[o]=

 ".,-~:;=!*#$@"[N>0?N:0];}}/*#****!!-*/

  printf("\x1b[H");for(k=0;1761>k;k++)

   putchar(k%80?b[k]:10);A+=0.04;B+=

     0.02;}}/*****####*******!!=;:~

       ~::==!!!**********!!!==::-

         .,~~;;;========;;;:~-.

             ..,--------,*/

```

## CONTRIBUTING

If you find any issues or have suggestions for improvements, feel free to fork the repository and open an issue or submit a pull request.

## LICENSE

This project is available under the MIT License. For further details, please refer to the [LICENSE](https://github.com/jotavare/spinning-ascii-donut-c/blob/main/LICENSE) file.