public void SolveNext()
{
foreach (Bridge bridge in SubBridges.Where(b => !b.IsAllComplete()))
{
bridge.SolveNext();
}
Link[] avail;
var used = Used;
if (!used.Any())
{
avail = _available.Where(a => a.HasFreeSide(0)).ToArray();
}
else
{
avail = _available.Where(a => a.HasFreeSide(used.Last().FirstFreeSide().Value)).ToArray();
}
if (avail.Length == 0)
{
IsComplete = true;
return;
}
for (int i = 1; i < avail.Length; i++)
{
Bridge sub = new Bridge(_available, Used, new List <Bridge>(), IsComplete);
sub.UsePart(avail[i]);
SubBridges.Add(sub);
}
UsePart(avail[0]);
}
public Bridge GetLongest()
{
var others = SubBridges.Select(b => b.GetLongest());
Bridge[] vals = others.Append(this).ToArray();
return(vals.OrderByDescending(b => b.Used.Count).ThenByDescending(b => b.MyScore).First());
}