class Explosion
{
  
  Vector2D position;
  int size;
  int maxSize;
  //Color color
  int type = 1; //1 - bug dies, 2 - bullet
  
  
  public Explosion(Vector2D position_, int size_, int type_)
  {
    position = position_;
    size = size_;
    type = type_;
    maxSize = 7 * size;
    //color = color_;
  }

  void draw(int i)
  {
    
    stroke(60, 50, 40);
    ellipse(position.getX(), position.getY(), size, size);
    if (type == 1) 
    {
      stroke(80, 50, 40);
      ellipse(position.getX(), position.getY(), size + 10, size + 10);
      strokeWeight(2);
      stroke(100, 50, 40);
      ellipse(position.getX(), position.getY(), size + 20, size + 20);
      stroke(120, 60, 40);
      ellipse(position.getX(), position.getY(), size + 30, size + 30);
      strokeWeight(1);
    }
    size += 3;
  } 
  
  int clean(int i)
  {
    if (size > maxSize)
    {
      explosions = removeArrayItem(i, explosions);
      return 1;
    }
    return 0;
  }
}

public Explosion[] removeArrayItem(int index, Explosion[] items)
{
  if(index < explosionsCount)
  {
    items[index] = null;
    for(int i = index + 1;i < explosionsCount; i++)
    {
      items[i - 1] = items[i];
    }
    explosionsCount--;
  }
  return items;
}