Get stroke value in p5.js

Tushar

My code is something like this:

stroke(random([0,255]),random([0,255]),random([0,255]));

Now, what I want is to eliminate the possibility of getting stroke(0,0,0) here. I know I can do this with a condition, something like:

if (Stroke.value() == [0,0,0]){...}

but that doesn't exist.

Can someone tell me the correct way to do this?

GoToLoop

const c = '#' + hex(~~random(1, 0x1000), 3);
stroke(c);
print(c);

kfrajer

Instead of random([0,255] do random([1,255].

Kf

Tushar

@kfrajer

[1,1,1] on a black background will look pretty terrible.

Tushar

@GoToLoop That's not what I asked...

Elaboration of question:

stroke(random([0,255]),random([0,255]),random([0,255]));

this will have 8 possible outcomes: red, green, blue, yellow, blue-green, violet, white and black.

What I want to do, is get only the other 7 colours as the output.

GoToLoop

https://OpenProcessing.org/sketch/427034

/**
 * Random 7 Colors (v1.1.2)
 * GoToLoop (2017-May-09)
 *
 * forum.Processing.org/two/discussion/22482/get-stroke-value-in-p5-js#Item_5
 * OpenProcessing.org/sketch/427034
 */

"use strict";

const c = Array(3).fill();

function setup() {
  createCanvas(400, 300);
  frameRate(1);
  colorMode(RGB);
}

function draw() {
  random7Colors();
  background(c);
  print(c);
}

function random7Colors(sum) {
  do for (let i = sum = 0; i < 3; sum += c[i++] = (random(1) > .5) * 0xff);
  while (!sum);
}

Tushar

Got the idea. Thanks!