Generating Random Mazes with JavaScript

Published on October 31st, 2024 October 31st, 2024

I didn’t get a chance to hit the pumpkin patch this year, so I missed out on seeing any corn mazes. To make up for it, I decided to make some mazes of my own! Being a programmer, I over-engineered it and built a random maze generator!

I made a CodePen that animates the creation of random mazes so you can watch how the algorithm works. (Click “Randomize” to generate a new maze.)

There are lots of different types of mazes and ways to make them. Before I started writing code, I thought through what I wanted from a maze and what would keep me from going off the deep end of complexity. There were some basic constraints I landed on:

First off, we need to make some choices about our grid. For now, we’ll start with a ten-by-ten grid. We’ll store these choices as variables to reuse them and make them easy to change later:

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