​

function setup() {

  createCanvas(windowWidth, windowHeight);

  noStroke();

  angleMode(DEGREES);

  blendMode(SCREEN);

}

​

function draw() {

  // MOUSE MOVEMENT

  let sluggishness = 6

  xShift = (width/2 - mouseX)/sluggishness;

  yShift = (height/2 - mouseY)/sluggishness;

  clear()

  background(0);

​

  fill(255, 0, 0);

  circle(width / 2, height / 2 - yShift, height / 2);

  fill(0, 255, 0);

  circle(width / 2 - xShift, height / 2 + yShift, height / 2);

  fill(0, 0, 255);

  circle(width / 2 + xShift, height / 2 + yShift, height / 2);

}

​