My Sketch

var angle = 0;

​

function setup() {

  createCanvas(windowWidth, windowHeight);

  background(0);

  noStroke();

  fill(255, 255, 255);

}

​

function draw() {

  background(0, 0, 0);

  var frequency = map(mouseX, 0, width, 1, 10)

  var amplitude = mouseY/2;

  angle += frequency;

  var osc = sin(radians(angle)) * amplitude;

  var ySin = height/2 + osc;

  ellipse(width/2, ySin, 10, 10);

​

}