let starY = []; // array to save Y coordinates

let starO = []; // array to save opacity values

​

function setup() {

  createCanvas(windowWidth, windowHeight);

  // frameRate(24);

  for (let i = 0; i < 200; i++) {

    starX[i] = random(0, windowWidth); // setting random values

    starY[i] = random(0, windowHeight);

    starO[i] = random(0, 255);

  }

  console.log(starO);

}

​

function draw() {

  background(0,0,0);

  for(let i = 0; i < 600; i++) { // loop to display all of the circles

    fill(255, 255, 255, starO[i])

    ellipse(starX[i], starY[i], 5, 5);

  }

}