public UCTNode(UCTNode parent, Move m, Board boardState)
{
if (m == null || boardState == null)
throw new ArgumentNullException("m");
BoardState = boardState.Clone();
Parent = parent;
Children = null;
Position = new Move(m);
Wins = 0;
Visits = 0;
}
public UCTNode(UCTNode parent, Move m, Board boardState)
{
if (m == null || boardState == null)
{
throw new ArgumentNullException("m");
}
BoardState = boardState.Clone();
Parent = parent;
Children = null;
Position = new Move(m);
Wins = 0;
Visits = 0;
}
public void CreateChildren()
{
lock (this)
{
int size = Board.Size;
Board b = BoardState;
if (Children != null)
{
return;
}
if (Parent == null || Parent.Children == null)
{
Children = new List <UCTNode>(size * size);
}
else
{
Children = new List <UCTNode>(Parent.Children.Count);
}
for (int i = 0; i < size; i++)
{
for (int j = 0; j < size; j++)
{
//is on empty space on the board
if (b[i, j] == 0 && b.IsEye(i, j) != b.ActivePlayer)
{
Board anotherCloneBoard = b.Clone();
Move m = new Move(i, j);
if (anotherCloneBoard.PlaceStone(m) == true)
{
Children.Add(new UCTNode(this, m, anotherCloneBoard));
}
}
}
}
Children.Shuffle();
HasChildren = true;
}
}