let drones = [];

​

function setup() {

  createCanvas(400, 400);

​

  // Create drones

  for (let i = 0; i < 3; i++) {

    drones.push({ x: random(width), y: random(height), speed: 0 });

  }

}

​

function draw() {

  background(255);

  stroke(0);

  fill(0);

​

  if (!serialActive) {

    text("Press Space Bar to select Serial Port", 20, 30);

  } else {

    text("Connected", 20, 30);

  }

  // Calculate speed based on distance (custom mapping)

  let speed = map(distance, 0, 100, 10, 1); // Adjust mapping based on desired speed ranges

​

  // Draw drones with changing speed based on distance

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

    ellipse(drones[i].x, drones[i].y, 20, 20); // Draw drone

    moveDrone(i, speed); // Move drone based on speed

  }

}

​

function keyPressed() {

  if (key == " ") {

    // important to have in order to start the serial connection!!

    setUpSerial();

  }

}

​

function moveDrone(index, speed) {

  // Update drone's position using Perlin noise

  let xincrement = 0.01;

  let yincrement = 0.01;

  drones[index].x += map(noise(drones[index].x * xincrement), 0, 1, -speed, speed);

  drones[index].y += map(noise(drones[index].y * yincrement), 0, 1, -speed, speed);

​

  // Wrap drones around the canvas edges

  drones[index].x = (drones[index].x + width) % width;

  drones[index].y = (drones[index].y + height) % height;

}

​

function readSerial(data) {

  if (data != null) {

    // Map distance received from the ultrasonic sensor to a range of 0 to 100

    distance = map(Number(data), 5, 50, 0, 100); // Adjust mapping based on the actual sensor range

    print(distance);

  }

}