Beispiel #1
0
 public void Calculate(double[] input, bool output)
 {
     Values = new double[Length];
     for (int k = 0; k < Length; k++)
     {
         for (int j = 0; j < InputLength; j++)
         {
             Values[k] += ((Weights[k, j]) * input[j]);
         }
         if (!output)
         {
             Values[k] += Biases[k];
             Values[k]  = ActivationFunctions.Tanh(Values[k]);
         }
         else
         {
             Values[k] = Values[k];
         }
     }
 }
Beispiel #2
0
        public double Score(Board board, bool useNeurons)
        {
            var input = new double[8, 8];

            //Flip a copy of the board to always have self at bottom for scoring purposes
            Piece[,] temp = Serializer.DeepClone(board.Pieces);

            /*if (player.IsW) { temp = Serializer.DeepClone(board.Pieces); }
             * else { temp = ArrayInverse(board.Pieces); }*/
            for (int i = 0; i < 8; i++)
            {
                for (int ii = 0; ii < 8; ii++)
                {
                    //Set piece values equal to standard chess piece values
                    Piece p = temp[i, ii];
                    //Don't have to set empty piece = 0 b/c array initialization does it automatically
                    if (p is Empty)
                    {
                        continue;
                    }
                    if (p is Pawn)
                    {
                        input[i, ii] = 1;
                    }
                    if (p is Knight || p is Bishop)
                    {
                        input[i, ii] = 3;
                    }
                    if (p is Rook)
                    {
                        input[i, ii] = 5;
                    }
                    if (p is Queen)
                    {
                        input[i, ii] = 9;
                    }
                    if (p is King)
                    {
                        input[i, ii] = 15;
                    }

                    //Set opposite color piece values to negative
                    if (p.Player.IsW != player.IsW)
                    {
                        input[i, ii] *= -1;
                    }
                }
            }
            if (useNeurons)
            {
                //Normalize everything
                input = ActivationFunctions.Normalize(input, 8, 8);
                return(Run(input));
            }
            //Count the value of pieces left on the board
            else
            {
                int sum = 0;
                foreach (int i in input)
                {
                    sum += i;
                }
                return(sum);
            }
        }