​

function setup() {

  createCanvas(400, 400);

  // Create multiple balls

  for (let i = 0; i < 30; i++) {

    balls.push({

      x: random(width),       // Random x position

      y: random(height),      // Random y position

      xSpeed: random(-3, 3),  // Random horizontal speed

      ySpeed: random(-3, 3),  // Random vertical speed

      diameter: random(20, 50), // Random size

      color: [random(255), random(255), random(255)] // Random color

    });

  }

}

​

function draw() {

  background(0); 

  // Update and display each ball

  for (let i = 0; i < balls.length; i++) {

    let ball = balls[i];

    // Move the ball

    ball.x += ball.xSpeed;

    ball.y += ball.ySpeed;

    // Bounce the ball off the edges

    if (ball.x < 0 || ball.x > width) {

      ball.xSpeed *= -1;

    }

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

      ball.ySpeed *= -1;

    }

    // Draw the ball

    fill(ball.color);

    ellipse(ball.x, ball.y, ball.diameter);

  }

}

​