My Bouncing Thing

var oldx, oldy;

var x, y;

var vx; 

var a;

var f;

​

function setup() {

  createCanvas(windowWidth, windowHeight); 

  background(100);  

  x = width/2;

  y = height / 2;

  oldx = x;

  oldy = y;

  vx = -.85;

  vy = 3.1;

  a = 2.5

  f = -.9

} 

​

function draw() {

  fill (30, 100, 20)

 ellipse(x, y, 25, 25);

  vy = vy + f;

  vy = vy + a;

  x = x + vx;

  y = y + vy;

  if (x < 0) {

    vx = vx * -1;

    vy = vy * -1;

  }

  if (x > width) {

    vx = vx * -1;

  }

   if (y > height) { 

    vy = vy * -1;

  }

  if (y < 0) {

    vy = vy * -1;

  }

  function (mousePressed() {

    x = mouseX;

    y = mouseY;

}

}