private bool IsLineSuitableForAFork(Board board, int[] line)
{
int aiCells = 0;
foreach(var coordinate in line )
{
if(board.IsCellOfType(opponentsMark, coordinate))
return false;
if (board.IsCellOfType(myMark, coordinate))
aiCells++;
}
return aiCells == AI_CELLS_IN_A_FORK_LINE;
}
private int GetFirstEmptyCellCoordinatesInASide(Board board)
{
foreach ( var side in board.Sides)
{
if (board.IsCellOfType(' ', side))
return side;
}
return INVALID_COORDINATES;
}
private int GetFirstEmptyCellCoordinatesInACorner(Board board)
{
foreach (var corner in board.Corners)
{
if (board.IsCellOfType(' ', corner))
return corner;
}
return INVALID_COORDINATES;
}
public override void Update(Board board, char mark)
{
for (var column = 0; column < board.Size; column++)
{
if (board.IsCellOfType(' ', new CellCoordinates(FIRST_ROW, column)))
{
board.FillCell(new CellCoordinates(FIRST_ROW, column), mark);
break;
}
}
}
private bool IsThereAndOpponentInTheCorner(int markCoordinate, Board board)
{
return board.IsCellOfType(opponentsMark, markCoordinate);
}
private bool IsOppositeCornerFree(int markCoordinate, Board board)
{
return board.IsCellOfType(' ', markCoordinate);
}