private void Move()
{
//pickup three cups
CupChain cc = CurrentCup.RemoveNext(3);
//select destination cup
int destinationCupNumber = CurrentCup.Number - 1;
if (destinationCupNumber < 1)
{
destinationCupNumber = CupMax;
}
while (cc.Contains(destinationCupNumber))
{
destinationCupNumber--;
if (destinationCupNumber < 1)
{
destinationCupNumber = CupMax;
}
}
//place picked cups
Cup destinationCup = OrderedCupList[destinationCupNumber - 1];
destinationCup.InsertChain(cc);
//select current cup
CurrentCup = CurrentCup.Next;
}
internal void InsertChain(CupChain cc)
{
Cup nextTmp = Next;
Next = cc.StartCup;
cc.StartCup.Prev = this;
nextTmp.Prev = cc.EndCup;
cc.EndCup.Next = nextTmp;
}
public CupChain RemoveNext(int count)
{
CupChain cc = new CupChain();
cc.StartCup = this.Next;
cc.EndCup = this.Next;
for (int i = 0; i < count - 1; i++)
{
cc.EndCup = cc.EndCup.Next;
}
this.Next = cc.EndCup.Next;
cc.EndCup.Next.Prev = this;
cc.EndCup.Next = null;
cc.StartCup.Prev = null;
return(cc);
}
