String r = getClass() + "[id=" + id + ",x=" + x + ",y=" + y + "target=" + ((target == null) ? "null" : target) + "]"; return r;
return getClass().getName() + "[" + paramString() + "]";
  public String toString()  {    String r = getClass() + "[id=" + id + ",x=" + x + ",y=" + y + "target="                + ((target == null) ? "null" : target) + "]";    return r;  }