let v;

let debug = true;

let d = 25;

​

function setup() {

  createCanvas(560,390);

  v = new Vehicle(width/2, height/2);

}

​

function draw() {

  background(220);

​

  if (debug) {

    stroke(175);

    noFill();

    rectMode(CENTER);

    rect(width/2, height/2, width-d*2, height-d*2);

  }

​

  //call the appropriate steering behaviors for agents

  v.boundaries();

  v.update();

  v.display();

​

}

​

function mousePressed() {

  debug = !debug;

}