private TypeTransfer SeekTransfer(PositionType from, PositionType to)
{
TypeTransfer transfer = m_transfers.FirstOrDefault(o => o.From == from && o.To == to);
if (transfer != null)
{
return(transfer);
}
transfer = new TypeTransfer(from, to);
Stack <TypeTransfer> transferStack = new Stack <TypeTransfer>();
if (SeekTarget(transferStack, from, to))
{
foreach (var t in transferStack)
{
transfer.AddTransfer(t);
}
}
m_transfers.Add(transfer);
return(transfer);
}