void updateObjects() {
  if(currentObjectDelay == 0) {
    objectSelector = (int)random(100);
    if(objectSelector < border) { objects.add(new Ally(objectSpeed)); }
    else if(objectSelector < 95) { objects.add(new Enemy(objectSpeed)); }
    else { objects.add(new Boost(objectSpeed)); }
    currentObjectDelay = objectDelay;
  } else {
    currentObjectDelay--;
  }

  Object obj;
  for(int i = 0; i < objects.size(); i++) {
    obj = objects.get(i);
    obj.draw();
    if(obj.isColliding()){
      obj.handleCollision(player);
      objects.remove(obj);
    }
  }
}