this.maxX = Math.max(this.maxX, x);
final int y = Integer.parseInt(element.attributeValue("y"));
this.maxY = Math.max(this.maxY, y);
final int planets = Integer.parseInt(element
.attributeValue("planets"));
final Sun suns = sunsFactory.getSun(Integer.parseInt(element
.attributeValue("suns")));
final Race race = raceFactory.getRace(element
.attributeValue("race"));
final boolean core = Boolean.parseBoolean(element
.attributeValue("core"));