public Board Clone()
{
Board result = new Board();
result.CopyStateFrom(this);
return(result);
}
double GetWinrate(Move move)
{
if (_startingTestingBoard == null)
{
_startingTestingBoard = new Board();
}
_startingTestingBoard.CopyStateFrom(_actualBoard);
if (_startingTestingBoard.PlaceStone(move) == false)
{
return(-1);
}
UInt64 sim = 0;
int wins = 0;
while (sim < GameParameters.RandomSimulations)
{
int winner = PlaySimulation();
if (winner != 0)
{
sim++;
if (winner == _actualBoard.ActivePlayer)
{
wins++;
}
}
}
return(sim > 0 ? (double)wins / sim : -1);
}
public int PlaySimulation()
{
if (_testingBoard == null)
{
_testingBoard = new Board();
}
_testingBoard.CopyStateFrom(_startingTestingBoard);
int turnsSimulated = 0;
while (turnsSimulated < GameParameters.GameDepth && _testingBoard.IsGameOver() == false)
{
turnsSimulated++;
int moveCount = GetAvailableMoves(_testingBoard);
Move pass = new Move(-1, -1); //добавить в список возможных ходов пас
_availableMoves[moveCount++] = pass;
_availableMoves.Shuffle(moveCount);
for (int i = 0; i < moveCount; i++)
{
if (_testingBoard.PlaceStone(_availableMoves[i]) == true)
{
break;
}
}
}
int winner = _testingBoard.DetermineWinner();
return(winner);
}
private int PlayRandomGame(UCTNode node)
{
_boardClone.CopyStateFrom(node.BoardState);
int turnsSimulated = 0;
while (turnsSimulated < GameParameters.GameDepth && _boardClone.IsGameOver() == false)
{
turnsSimulated++;
Move m = new Move(-5, -5);
do
{
m.row = RandomGen.Next(-1, GameParameters.BoardSize);
m.column = RandomGen.Next(-1, GameParameters.BoardSize);
} while (_boardClone.PlaceStone(m) == false);
}
int winner = _boardClone.DetermineWinner();
return(winner);
}
public int PlaySimulation()
{
if (_testingBoard == null)
{
_testingBoard = new Board();
}
_testingBoard.CopyStateFrom(_startingTestingBoard);
int turnsSimulated = 0;
while (turnsSimulated < GameParameters.GameDepth && _testingBoard.IsGameOver() == false)
{
turnsSimulated++;
Move m = new Move(-1, -1);
do
{
m.row = RandomGen.Next(-1, GameParameters.BoardSize);
m.column = RandomGen.Next(-1, GameParameters.BoardSize);
} while (_testingBoard.PlaceStone(m) == false);
}
int winner = _testingBoard.DetermineWinner();
return(winner);
}
public Board Clone()
{
Board result = new Board();
result.CopyStateFrom(this);
return result;
}