x: 200,

  y: 200,

  xspeed: 5,

  yspeed: -3

}

​

function setup() {

  createCanvas(400, 400);

}

​

function draw() {

  background(220);

  position();

  bounce();

  move();

}

​

function position() {

  fill(86, 255, 138);

  ellipse(ball.x, ball.y, 20);

}

​

function bounce() {

  if (ball.x > width || ball.x < 0) {

    ball.xspeed = ball.xspeed * -1

  }

​

  if (ball.y > height || ball.y < 0) {

    ball.yspeed = ball.yspeed * -1

  }

}

​

function move() {

  ball.x += ball.xspeed;

  ball.y += ball.yspeed;

}