public void Perft_Test(int depth, Board board) // Also prints information regarding the moves
{
Debug.Assert(BoardOperations.CheckBoard(board));
var startTime = Variables.Watch.ElapsedMilliseconds;
Console.Write("\nStarting Perft Test to Depth {0}", depth);
BoardOperations.PrintBoard(board);
LeafNodes = 0;
MoveList list = new MoveList();
MoveGen.GenerateAllMoves(board, list, false);
for (int i = 0; i < list.Count; ++i)
{
int move = list.Moves[i].Move;
if (!MakeMove.Make_Move(board, list.Moves[i].Move))
{
continue;
}
long cumulativeNodes = LeafNodes;
_Perft(depth - 1, board);
MakeMove.TakeMove(board);
long oldNodes = LeafNodes - cumulativeNodes;
Console.Write("\nmove {0} : {1} : {2}", i + 1, Io.MoveToString(move), oldNodes);
}
Console.Write("\nTest Complete: {0} nodes visited in {1} miliseconds\n", LeafNodes, Variables.Watch.ElapsedMilliseconds - startTime);
}
// should read "position fen"
// "position startpos"
// which could possibly be followed by "... moves a2a3 a3a4" etc.
public void ParsePosition(string lineIn, Board board)
{
int stringIndex = 9; // starts at 9 cause position is length 8
int moveIndex = lineIn.IndexOf("moves"); // is there any moves to consider?
if (lineIn.Length >= stringIndex + 8 &&
lineIn.Substring(stringIndex, 8).Equals("startpos"))
{
BoardOperations.ParseFen(Fens.START_FEN, board);
}
else // Else "position fen fenstring"
{
if (lineIn.Length >= stringIndex + 3 &&
lineIn.Substring(stringIndex, 3).Equals("fen"))
{
stringIndex += 4; // should be at start of fenstring now.
if (moveIndex == -1)
{
BoardOperations.ParseFen(lineIn.Substring(stringIndex), board);
}
else
{
BoardOperations.ParseFen(
lineIn.Substring(stringIndex, moveIndex - stringIndex - 1), board);
}
}
else
{
BoardOperations.ParseFen(Fens.START_FEN, board);
}
}
if (moveIndex != -1) // moves were found.
{
stringIndex = moveIndex + 6; // We are now at start of command moves. moves |a2a3
int move = Variables.NO_MOVE;
while (stringIndex <= lineIn.Length - 1)
{
stringIndex += 5;
if (lineIn.Length > stringIndex && lineIn[stringIndex - 1] == ' ')
{
move = Io.ParseMove(board, lineIn.Substring(stringIndex - 5, 4).ToCharArray()); // not a promotion move.
}
else if (stringIndex == lineIn.Length + 1) // if at last move
{
move = Io.ParseMove(board,
lineIn.Substring(stringIndex - 5, 4).ToCharArray());
}
else if (stringIndex == lineIn.Length) // promotion move at end of line
{
move = Io.ParseMove(board,
lineIn.Substring(stringIndex - 5, 5).ToCharArray());
}
else if (lineIn.Length >= stringIndex && lineIn[stringIndex - 1] != ' ')
{
move = Io.ParseMove(board,
lineIn.Substring(stringIndex - 5, 5).ToCharArray());
stringIndex++;
}
if (move == Variables.NO_MOVE)
{
break;
}
MakeMove.Make_Move(board, move);
board.Ply = 0;
}
}
BoardOperations.PrintBoard(board);
}