/// <summary>
/// Adds a child node to this node.
/// </summary>
/// <param name="move"></param>
/// <param name="activeIndex"></param>
/// <returns>A new child node.</returns>
internal TreeNode AddChild(Move move, int activeIndex)
{
var child = new TreeNode
{
Move = move,
ActiveIndex = activeIndex,
Parent = this
};
if (FirstChild == null)
{
FirstChild = child;
LastChild = child;
}
else
{
LastChild.NextSibling = child;
LastChild = child;
}
return child;
}
internal void DoMove(Move move)
{
// Register the move.
ActiveHand.Move = move;
// Remove the played card from the player's cards.
ActiveHand.Cards &= ~move.Card;
// Update the leading suit.
if (mLeadingSuit == 0)
mLeadingSuit = BitwiseCardHelper.GetSuitAsBits(move.Card);
ActivateNextHand();
// If the next player has already played a card, then the trick is over.
if (ActiveHand.Move.Card != 0)
{
mActiveIndex = GetTrickWinner();
ActiveHand.Tricks++;
for (int i = 0; i < HandCount; i++)
{
mDiscards |= mHands[i].Move.Card;
mHands[i].Move = Move.Empty;
}
mLeadingSuit = 0;
}
}