{

 createCanvas(400, 400);

}

​

function draw() {

  let x = mouseX;

  let y = mouseY;

  let ix = width - mouseX;  // Inverse X

  let iy = height - mouseY; // Inverse Y

  background('#8c34eb');

  fill(255, 150);

  ellipse(x, height/2, y, y);

  fill(0, 159);

  ellipse(ix, height/2, iy, iy);

}