Get random seed value in p5.js?

p5.js Beginners
6

Thanks all! I realize this is maybe a but unusual but I could see a good use here: when working with random values you often want variety (ie randomness) but also to be able to return to something you like. By running random() with the built-in seed, each time you run the sketch the results are different. But by being able to print that seed (or use it to build a filename for the output) you can return to those exact settings later.

For sure: I could create a seed myself and I do that a lot, but this involves updating that seed manually.

@GoToLoop – thanks for tracking that down! I tried several permutations but _lcg_random_state always returns null for me.

Seems like maybe the best option is something like this:

function setup() {
  createCanvas(400, 400);
  
  // create a random random-seed :)
  let seed = random(0, 10000);
  randomSeed(seed);
}

function draw() {
  background(220);
  
  // do random stuff
}