public Node minimax(OtheloGameLogic i_BoardPiecesPosition, int i_Depth, bool i_MaximizingPlayer)
{
if (i_Depth == 0 || (!i_BoardPiecesPosition.GetCurrentPlayerTurn().IsHaveValidMove&& !i_BoardPiecesPosition.GetOpposingPlayer().IsHaveValidMove))
{
return(boardPositionAIScore(i_BoardPiecesPosition));
}
if (i_MaximizingPlayer)
{
int maxEval = int.MinValue;
Node resMaxEval = new Node();
resMaxEval.ScoreResult = maxEval;
resMaxEval.BoardPiecesPosition = i_BoardPiecesPosition;
foreach (Coordinates child in i_BoardPiecesPosition.ValidCoordinatesToAddPieces())
{
i_BoardPiecesPosition.SetInputPieceAndFlipAllTheInfluencedPieces(child, true);
Node eval = minimax(i_BoardPiecesPosition, i_Depth - 1, false);
if (maxEval < eval.ScoreResult)
{
resMaxEval.ScoreResult = eval.ScoreResult;
resMaxEval.BoardPiecesPosition = i_BoardPiecesPosition;
}
}
return(resMaxEval);
}
else
{
int minEval = int.MaxValue;
Node resMinEval = new Node();
resMinEval.ScoreResult = minEval;
resMinEval.BoardPiecesPosition = i_BoardPiecesPosition;
foreach (Coordinates child in i_BoardPiecesPosition.ValidCoordinatesToAddPieces())
{
i_BoardPiecesPosition.SetInputPieceAndFlipAllTheInfluencedPieces(child, true);
Node eval = minimax(i_BoardPiecesPosition, i_Depth - 1, true);
if (minEval > eval.ScoreResult)
{
resMinEval.ScoreResult = eval.ScoreResult;
resMinEval.BoardPiecesPosition = i_BoardPiecesPosition;
}
}
return(resMinEval);
}
}
private void doPlayerHumanMove(ref bool io_IsGameOver, Coordinates i_PlayerMoveCoordinate)
{
if (m_OtheloGameLogic.GetCurrentPlayerTurn().IsHaveValidMove)
{
io_IsGameOver = false;
m_OtheloGameLogic.SetInputPieceAndFlipAllTheInfluencedPieces(i_PlayerMoveCoordinate);
m_FormOthloGameBoard.ShowUpdatePlayerScore(m_OtheloGameLogic.GetCurrentPlayerTurn().Team, m_OtheloGameLogic.GetCurrentPlayerTurn().Score);
m_FormOthloGameBoard.ShowUpdatePlayerScore(m_OtheloGameLogic.GetOpposingPlayer().Team, m_OtheloGameLogic.GetOpposingPlayer().Score);
}
else
{
m_OtheloGameLogic.ChangeTurn();
}
}
