A* Pathfinding Algorithm (Coding Challenge 51 - Part 1)

In this multi-part coding challenge, I attempt an implementation of the A* Pathfinding Algorithm to find the optimal path between two points in a 2D grid. Code: https://thecodingtrain.com/challenges/51-a-pathfinding-algorithm 💻 Github Repo: https://github.com/CodingTrain/AStar 🕹️ p5.js Web Editor Sketch: https://editor.p5js.org/codingtrain/sketches/ehLjdFpat Other Parts of this Challenge: 📺 A* Algorithm - Part 2: https://youtu.be/EaZxUCWAjb0 📺 A* Algorithm - Part 3: https://youtu.be/jwRT4PCT6RU 🎥 Previous video: https://youtu.be/QHEQuoIKgNE?list=PLRqwX-V7Uu6ZiZxtDDRCi6uhfTH4FilpH 🎥 Next video: https://youtu.be/l__fEY1xanY?list=PLRqwX-V7Uu6ZiZxtDDRCi6uhfTH4FilpH 🎥 All videos: https://www.youtube.com/playlist?list=PLRqwX-V7Uu6ZiZxtDDRCi6uhfTH4FilpH References: 📘 Artificial Intelligence: A Modern Approach: http://aima.cs.berkeley.edu/ 🗄 A* Search Algorithm on Wikipedia: https://en.wikipedia.org/wiki/A*_search_algorithm 💻 Online demo: https://codingtrain.github.io/AStar/ Live Stream Archive: 🔴 Live Stream #72: https://www.youtube.com/watch?v=S4yQYiAECnM&t=34m50s Related Coding Challenges: 🚂 #10 Maze Generator: https://youtu.be/HyK_Q5rrcr4 🚂 #162 Self Avoiding Walk: https://youtu.be/m6-cm6GZ1iw Timestamps: 0:00:00 Introduction 0:01:26 A* Pathfinder 0:09:39 Coding a Grid 0:13:09 A* Pathfinder Algorithm 0:22:07 Choosing Best Available Path 0:27:05 Finding New Nodes 0:38:30 Adding Heuristic 0:41:50 Tracing Back 0:46:49 Using Better Heuristics Editing by Mathieu Blanchette Animations by Jason Heglund Music from Epidemic Sound 🚂 Website: http://thecodingtrain.com/ 👾 Share Your Creation! https://thecodingtrain.com/guides/passenger-showcase-guide 🚩 Suggest Topics: https://github.com/CodingTrain/Suggestion-Box 💡 GitHub: https://github.com/CodingTrain 💬 Discord: https://discord.gg/hPuGy2g 💖 Membership: http://youtube.com/thecodingtrain/join 🛒 Store: https://standard.tv/codingtrain 🖋️ Twitter: https://twitter.com/thecodingtrain 📸 Instagram: https://www.instagram.com/the.coding.train/ 🎥 Coding Challenges: https://www.youtube.com/playlist?list=PLRqwX-V7Uu6ZiZxtDDRCi6uhfTH4FilpH 🎥 Intro to Programming: https://www.youtube.com/playlist?list=PLRqwX-V7Uu6Zy51Q-x9tMWIv9cueOFTFA 🔗 p5.js: https://p5js.org 🔗 p5.js Web Editor: https://editor.p5js.org/ 🔗 Processing: https://processing.org 📄 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 #aalgorithm #pathfinding #heuristic #p5js #javascript