let angleV = 0.1;

​

function setup() {

  createCanvas(400, 400);

  frameRate(5);

  //background(0, 10);

}

​

function draw() {

  //line(mouseX, mouseY, 0, 0);

  background(0, 10);

  translate(200, 200);

​

  fill(0, 0, 0, 100);

  circle(-200, 0, random(0, 400));

​

  stroke(255);

  // noStroke();

  fill(random(0, 50), 0, 100, 100);

  //noFill();

  let y = map(sin(angle), -1, 1, -200, 200);

  circle(-180, y, random(0, 32));

  circle(150, y, random(0, 32));

​

  let x = map(sin(angle), -1, 1, 400, -400);

  circle(x, -180, random(0, 32));

  circle(x, 170, random(0, 32));

​

  //let increment=TWO_PI/60;

  angle += angleV;

  //angleV=0.00001;

​

  //console.log(frameRate());

}