//moves a stone (destination is propably not the real destination; real destination is return value)
private Field MoveStone(Field source, Field destination)
{
string direction = GetDirection(source, destination);
PlQuery query = new PlQuery("moveStone", new PlTermV(source.ToTerm(), new PlTerm(direction), new PlTerm("NewDestination")));
PlTermV termV = query.Solutions.FirstOrDefault();
return termV.Size == 0 ? default(Field) : new Field(termV[2]);
}
//check for more hits
private IEnumerable<Field> MoreHitsPossible(Field source)
{
PlQuery query = new PlQuery("areMoreHitsPossible", new PlTermV(source.ToTerm(), new PlTerm("Hits")));
PlTermV termV = query.Solutions.FirstOrDefault();
if (termV.Size == 0)
return new List<Field>();
IEnumerable<PlTerm> list = termV[1].ToList();
return list.Select<PlTerm, Field>((t) => new Field(t)).ToList();
}