/// <summary>
/// Cpus the move.
/// </summary>
/// <param name="boardPositions">The board positions.</param>
/// <param name="choosingCharacter">The choosing character.</param>
/// <param name="index">The index which helps in choosing character from array for cpu</param>
public static void CpuMove(char[] boardPositions, char[] choosingCharacter, int index)
{
// while loop moves until position is entered by cpu in array and displayed in board.
while (true)
{
int positionEnteredByCpu;
int positionForWinning = CpuMoveForWinning(boardPositions, choosingCharacter);
//if position for winning is 0, then their is no position at which cpu can win or block position for win of user.
if (positionForWinning == 0)
{
//calls the method to enter character at corner position, at middle and if no case is satisfied, randomly - by cpu.
positionEnteredByCpu = TicTacToe.FillingVoidPositionByCpu(boardPositions);
}
//calls the method and returns the value where either the cpu is winning or blocking position for winning of user.
else
{
positionEnteredByCpu = positionForWinning;
}
//adding character in array using position returned from methods and displaying in boards.
if (boardPositions[positionEnteredByCpu] == ' ')
{
boardPositions[positionEnteredByCpu] = choosingCharacter[index % 2];
TicTacToe.Board(boardPositions);
break;
}
}
}