/** This function allows one player to play a move given an x and y coordinate */
public void playMove() {
if ((aiTurn == 1 && xTurn) || (aiTurn == -1 && !xTurn)) playMoveAI();
else {
Scanner keyboard = new Scanner(System.in);
int playerX, playerY;
do {
do {
System.out.print("Enter an X coordinate:\t");
playerX = keyboard.nextInt();
} while (playerX < 0 || playerX >= board.length);
do {
System.out.print("Enter a Y coordinate:\t");
playerY = keyboard.nextInt();
} while (playerY < 0 || playerY >= board[playerX].length);
if (board[playerY][playerX] != ' ')
System.out.println(playerX + " " + playerY + " is already occupied!");
} while (board[playerY][playerX] != ' ');
board[playerY][playerX] = xTurn ? 'X' : 'O';
}
xTurn = !xTurn;
}
