What feels like a million years and a lifetime ago, I wrote up a library for perlin and simple noise in Racket. Inspired by Jens Axel Søgaard’s new Sketching library (processing in Racket) and a conversation thereabout, I figure it’s about time to push noise to the raco package manager!
JP's Blog
Programming, Topic: Noise
All posts
- 2021-08-05: raco pkg install noise
- 2016-12-13: AoC 2016 Day 13: Noisy Puzzle
- 2013-04-16: Adventures in optimization, re: Typed Racket
- 2013-04-11: Perlin and simplex noise in Racket
Recent posts
AoC 2016 Day 13: Noisy Puzzle
Source: A Maze of Twisty Little Cubicles1
Part 1: Generate a procedurally generated maze using the following equation:
- x^2 + 3x + 2xy + y + y^2 + c
xandyare the coordinates of a point andcis a constant.
Count the number of bits for each point. Even is open spaces, odd is walls.
What is the shortest route from
(0, 0)to(31, 39)?
Adventures in optimization, re: Typed Racket
Last Thursday I wrote a post about generating Perlin/simplex noise in Racket. Later that day, I posted to the Racket mailing list asking how I could make it faster. What resulted was a whole sequence of responses (primarily about Typed Racket) and a bit of a rabbit hole that I’m still trying to wrap my head around.
Perlin and simplex noise in Racket
Many games need noise. No, not that noise–this noise. Or better yet, this noise. More seriously, noise in this context refers to psuedo-randomly generated images that can be used for natural looking terrain generation1. Something like this:
