private void outputSN(SearchNode sn) {
System.out.println("------------");
System.out.println(sn.board.toString());
System.out.println("Moves = " + sn.moves + " Prio = " + sn.priority());
}
@Override
public int compareTo(SearchNode o) {
return (int) Math.signum(priority() - o.priority());
}
/** Compare the SearchNode with the anchor one by priority value. */
public int compareTo(SearchNode that) {
if (this.priority() < that.priority()) return -1;
else if (this.priority() > that.priority()) return 1;
else return 0;
}
@Override
public int compareTo(SearchNode that) {
return this.priority() - that.priority();
}