Asteroids

import toxi.geom.*;
import toxi.processing.*;

Polygon2D ship, asteroid;
ToxiclibsSupport tls;

void setup() {
  size(1300, 700);
  tls = new ToxiclibsSupport(this);
  ship = new Polygon2D();
  float size = 10;
  ship.add(0, -size);
  ship.add(size, size);
  ship.add(0, size*0.5);
  ship.add(-size, size);
  ship.translate(width/2, height/2);

  asteroid = generateAsteroid();
}

void draw() {
  background(0);
  Vec2D mouse = new Vec2D(mouseX, mouseY);
  asteroid.center(mouse);
  if (ship.intersectsPolygon(asteroid)) {
    fill(255, 0, 0);
  } else {
    noFill();
  }

  stroke(255);
  strokeJoin(ROUND);
  tls.polygon2D(ship);
  tls.polygon2D(asteroid);
}

Polygon2D generateAsteroid() {
  Polygon2D poly = new Polygon2D();
  int pts = floor(random(5, 15));
  for (int i = 0; i < pts; i++) {
    float angle = TWO_PI / (float)pts * i;
    poly.add(Vec2D.fromTheta(angle).scaleSelf(random(40, 100)));
  }
  poly.scale(random(0.5, 1.2));
  return poly;
}

void mousePressed() {
  asteroid = generateAsteroid();
}

static class Asteroid {
  static ArrayList<Asteroid> asteroidList = new ArrayList<Asteroid>();
  Polygon2D shape;
  PApplet parent;

  public Asteroid(PApplet parent) {
    this.parent = parent;
    shape = generateAsteroid();

    asteroidList.add(this);
  }

  public Polygon2D generateAsteroid() {
    Polygon2D poly = new Polygon2D();
    int pts = floor(parent.random(5, 15));
    for (int i = 0; i < pts; i++) {
      float angle = TWO_PI / (float)pts * i;
      poly.add(Vec2D.fromTheta(angle).scaleSelf(parent.random(40, 100)));
    }
    poly.scale(parent.random(0.5, 1.2));
    return poly;
  }

  public void destroy() {
    asteroidList.remove(this);
  }
}

class Ship {
  Polygon2D shape;

  Ship() {

  }
}