Coding Challenge #107: Sandpiles

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United States The Coding Train
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Published on ● Video Link: https://www.youtube.com/watch?v=diGjw5tghYU


Duration: 21:21
71,821 views
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In this coding challenge, inspired by Numberphile I visualize "sandpiles" with Processing (Java). Code: https://thecodingtrain.com/challenges/107-sandpiles

πŸ•ΉοΈ p5.js Web Editor Sketch: https://editor.p5js.org/codingtrain/sketches/47dTVFxuB

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References:
πŸ—„ Sandpile on Wikipedia: https://en.wikipedia.org/wiki/Abelian_sandpile_model
πŸ““ simon-tiger's issue on GitHub: https://github.com/CodingTrain/Rainbow-Topics/issues/815
πŸ’Ύ Processing: https://processing.org

Videos:
πŸŽ₯ Sandpiles: https://youtu.be/1MtEUErz7Gg
πŸ”΄ Livestream Archive: https://youtu.be/_9ZerP7pGvc

Related Coding Challenges:
πŸš‚ #89 Langton's Ant: https://youtu.be/G1EgjgMo48U
πŸš‚ #85 The Game of Life: https://youtu.be/FWSR_7kZuYg
πŸš‚ #102 2D Water Ripple: https://youtu.be/BZUdGqeOD0w

Timestamps:
0:00 Introducing today's topic
1:02 The "sandpile" algorithm
2:28 Maximum amount of sand
5:39 Let's Code!
6:05 Create a 2D array of sandpiles
6:47 Write a render function
7:34 Assign a color based on amount of sand
9:57 Drop a lot of sand in the middle
11:21 Write a topple function
16:16 Correct code to determine nextpiles
17:04 Add rainbow colors
18:00 Call topple multiple times in draw
18:39 Fix edge problem
20:47 Conclusion and creative suggestions

Editing by Mathieu Blanchette
Animations by Jason Heglund
Music from Epidemic Sound

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πŸŽ₯ Coding Challenges: https://www.youtube.com/playlist?list=PLRqwX-V7Uu6ZiZxtDDRCi6uhfTH4FilpH
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πŸ”— p5.js: https://p5js.org
πŸ”— p5.js Web Editor: https://editor.p5js.org/
πŸ”— Processing: https://processing.org

πŸ“„ Code of Conduct: https://github.com/CodingTrain/Code-of-Conduct

This description was auto-generated. If you see a problem, please open an issue: https://github.com/CodingTrain/thecodingtrain.com/issues/new

#sandpile #cellularautomaton #grid #p5js #processing



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