* Milliseconds.  

 *

 * ported from Processing example: 

 *     https://processing.org/examples/milliseconds.html

 * 

 * A millisecond is 1/1000 of a second. 

 * Processing keeps track of the number of milliseconds a program has run.

 * By modifying this number with the remainder(%) operator, 

 * different patterns in time are created.  

 */

​

let scale;

​

function setup() {

  createCanvas(640, 360);

  noStroke();

  scale = width / 20;

}

​

function draw() {

  for (let i = 0; i < scale; i++) {

    colorMode(RGB, (i + 1) * scale * 10);

    fill(millis() % ((i + 1) * scale * 10));

    rect(i * scale, 0, scale, height);

  }

}