/**
* See how far we have gone in which direction since last going the other direction.
*
* @return The (signed) distance.
*/
public int getCurrentDistance() {
return m_distanceThisDirection * (int) Math.signum(m_lastStep);
}
@Override
public int compareTo(X that) {
// TODO Auto-generated method stub
if (this.b == that.b) return this.a - that.a;
return (int) Math.signum(that.b - this.b);
}
@Override
public int compareTo(SearchNode o) {
return (int) Math.signum(priority() - o.priority());
}