Method autoOne

Programs/Games/peg-solitaire/PegSolitaire.java:685–775

Method to make the computer play 1 move. @return boolean to specify if the game is finished.

()

	 * @return boolean to specify if the game is finished.
	 */
	public boolean autoOne(){
		if (is_finished()) return true;
		
		//Reset the toggle if the user touched any cell before.
		toggle = false;
		for (int i = 0; i < board.length; ++i)
			for (int j = 0; j < board.length; ++j)
				if (board[i][j].getBackground() == Color.YELLOW) board[i][j].setBackground(Color.BLACK);
		
		Random random = new Random();
		boolean flag = false;
		int row, col, direction;
		while (!flag){
			//Selecting random numbers for the move.
			row = random.nextInt(board.length);
			col = random.nextInt(board[0].length);
			if (boardType != 6) direction = random.nextInt(4);
			else direction = random.nextInt(6);

			//Trying to move until selected row, column, and direction values are valid.
			if (board[row][col].getBackground() != Color.BLACK) continue;
			if (direction == 0){
				//UPWARDS
				if (is_valid_up(row, col, row-2, col)){
					if (board[row-2][col].getBackground() != Color.GRAY) continue;
					board[row][col].setBackground(Color.GRAY);
					board[row-1][col].setBackground(Color.GRAY);
					board[row-2][col].setBackground(Color.BLACK);
					flag = true;
					moves.add(row*100+col*10+0);
				}
			}
			else if (direction == 1){
				//DOWNWARDS
				if (is_valid_down(row, col, row+2, col)){
					if (board[row+2][col].getBackground() != Color.GRAY) continue;
					board[row][col].setBackground(Color.GRAY);
					board[row+1][col].setBackground(Color.GRAY);
					board[row+2][col].setBackground(Color.BLACK);
					flag = true;
					moves.add(row*100+col*10+1);
				}
			}
			else if (direction == 2){
				//RIGHT
				if (is_valid_right(row, col, row, col+2)){
					if (board[row][col+2].getBackground() != Color.GRAY) continue;
					board[row][col].setBackground(Color.GRAY);
					board[row][col+1].setBackground(Color.GRAY);
					board[row][col+2].setBackground(Color.BLACK);
					flag = true;
					moves.add(row*100+col*10+2);
				}
			}
			else if (direction == 3){
				//LEFT
				if (is_valid_left(row, col, row, col-2)){
					if (board[row][col-2].getBackground() != Color.GRAY) continue;