// The Coding Train

// Coding Challenge 69: Steering Evolution

​

// Part 1: https://youtu.be/flxOkx0yLrY

// Part 2: https://youtu.be/XaOVH8ZSRNA

// Part 3: https://youtu.be/vZUWTlK7D2Q

// Part 4: https://youtu.be/ykOcaInciBI

// Part 5: https://youtu.be/VnFF5V5DS8s

​

const vehicles = [];

const food = [];

const poison = [];

​

let debug;

​

function setup() {

  createCanvas(640, 360);

  for (let i = 0; i < 50; i++) {

    const x = random(width);

    const y = random(height);

    vehicles[i] = new Vehicle(x, y);

  }

​

  for (let i = 0; i < 40; i++) {

    const x = random(width);

    const y = random(height);

    food.push(createVector(x, y));

  }

​

  for (let i = 0; i < 20; i++) {

    const x = random(width);

    const y = random(height);

    poison.push(createVector(x, y));

  }

​

  debug = createCheckbox();

​

}

​

function mouseDragged() {

  vehicles.push(new Vehicle(mouseX, mouseY));

}

​

function draw() {

  background(0);

​

  if (random(1) < 0.1) {

    const x = random(width);

    const y = random(height);

    food.push(createVector(x, y));

  }

​

  if (random(1) < 0.01) {

    const x = random(width);

    const y = random(height);

    poison.push(createVector(x, y));

  }

​

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

    fill(0, 255, 0);

    noStroke();

    ellipse(food[i].x, food[i].y, 4, 4);

  }

​

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

    fill(255, 0, 0);

    noStroke();

    ellipse(poison[i].x, poison[i].y, 4, 4);

  }

​

  for (let i = vehicles.length - 1; i >= 0; i--) {

    vehicles[i].boundaries();

    vehicles[i].behaviors(food, poison);

    vehicles[i].update();

    vehicles[i].display();

    const newVehicle = vehicles[i].clone();

    if (newVehicle != null) {

      vehicles.push(newVehicle);

    }

    if (vehicles[i].dead()) {

      const x = vehicles[i].position.x;

      const y = vehicles[i].position.y;

      food.push(createVector(x, y));

      vehicles.splice(i, 1);

    }

​

  }

}

​