var ballSpeed= 1;

  var ball2Speed = -1;

  var ball2SpeedY = 1;

  var x=200

  var circleX = 100

  var circleY = 100;

  var circleX2 = 380;

  var circleY2 = 100;

function setup() {

  createCanvas(400,400);

}

​

function draw() {

  background(0,0,0);

  fill(153,252,255);

  rect(x,300,70,15);

  x=x+speed;

  if (x>330){

    speed=-1;

  }

  if (x<150){

    speed= 1;

  }

  fill(255,145,250);

  ellipse(circleX,circleY,50,50);

  circleX= circleX + ballSpeed;

  circleY= circleY + ballSpeed;

  if(circleY>280){

    ballSpeed=-1;

  }

  if(circleX<25){

    ballSpeed=1;

  }

  ellipse(circleX2,circleY2, 50, 50);

  circleX2= circleX2 + ball2Speed;

  circleY2= circleY2 + ball2SpeedY;

  if(circleX2<25){

    ball2Speed=1;

  }  

  if(circleY2>280){

    ball2SpeedY=-1;

    if(circleY2<0){

      ball2SpeedY=-1;

    }

  }

}