Dana's Random Program

let x = 800;

let y = 200;

let incr = 50;

let size = 100;

​

function setup() {

  createCanvas(windowWidth, windowHeight);

  background(255);

}

​

//Load in image - must be uploaded in files

function preload() {

  myImage = loadImage('starrynight.jpg');

}

​

function draw() {

  //Retrieve Pixel Color

  let x1 = map(x, 0, width, 0, myImage.width);

  let y1 = map(y, 0, height, 0, myImage.height);

  let c = myImage.get(x1, y1);

  //Create ellipse

  fill(c);

  noStroke();

  ellipse(x, y, size, size);

  //Move in random direction

  x += random(-incr, incr);

  y += random(-incr, incr);

  //Constrain to the limits of the screen

  x = constrain(x,99,myImage.width);

  y = constrain(y,100,myImage.height);

}