How to read numbers per line in C#?-CodePudding

I am looking to read numbers from the text file and load them into an array in order to load a save game.

This is my ReadFile Function

public String ReadFile()
{
    string readText;
    string fullFileName = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "SaveGame.txt");
    try
    {
        using (var reader = new StreamReader(fullFileName))
        {
            readText = reader.ReadLine();
            Debug.Write(readText);
        }
    }
    catch
    {
        readText = "Couldn't read that file.";
    }
    return readText;
}

This is my output

Row: 0 Col 0 0
Row: 1 Col 0 0
Row: 2 Col 0 0
Row: 3 Col 0 0
Row: 4 Col 0 0
Row: 5 Col 0 0
Row: 6 Col 0 0
Row: 0 Col 1 0
Row: 1 Col 1 0
Row: 2 Col 1 0
Row: 3 Col 1 0
Row: 4 Col 1 0
Row: 5 Col 1 0
Row: 6 Col 1 0
Row: 0 Col 2 0
Row: 1 Col 2 0
Row: 2 Col 2 0
Row: 3 Col 2 0
Row: 4 Col 2 0
Row: 5 Col 2 0
Row: 6 Col 2 0
Row: 0 Col 3 0
Row: 1 Col 3 0
Row: 2 Col 3 0
Row: 3 Col 3 0
Row: 4 Col 3 0
Row: 5 Col 3 2
Row: 6 Col 3 0
Row: 0 Col 4 0
Row: 1 Col 4 0
Row: 2 Col 4 0
Row: 3 Col 4 0
Row: 4 Col 4 0
Row: 5 Col 4 0
Row: 6 Col 4 0
Row: 0 Col 5 0
Row: 1 Col 5 0
Row: 2 Col 5 0
Row: 3 Col 5 0
Row: 4 Col 5 0
Row: 5 Col 5 0
Row: 6 Col 5 0
Row: 0 Col 6 0
Row: 1 Col 6 0
Row: 2 Col 6 0
Row: 3 Col 6 0
Row: 4 Col 6 0
Row: 5 Col 6 0
Row: 6 Col 6 0

I want to read the 3 numbers per line and load them into an array like so

if(array[num1][num2] == num3)
{
    // Action
}

num1 being the first number on a line, num2 being the second and num3 being the third and then doing this for each line.

CodePudding user response：

Do the numbers stay under 10? If so you can just remove all the text from the readText with a regex, example:

string numberOnly = Regex.Replace(readText, "[^0-9,-] ", "")

And then just take [0] , [1] [2] and you have your seperate numbers.

This only works if your number stays below 10 though! Which looks like it in your example, but I don't have much context.

CodePudding user response：

You can use a helper function to extract all the numbers from a line:

void Main()
{
    string fullFileName = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "SaveGame.txt");
    var lines = File.ReadAllLines(fullFileName);
    foreach(var numbers in lines.Select(l => ParseInts(l, 3)))
        Console.WriteLine(numbers);
}

public static int[] ParseInts(string str, int? count = null)
{
    var regex = new Regex(@"([- ]?[0-9] )");
    var matches = regex.Matches(str);
    if (count != null)
        Debug.Assert(matches.Count == count);

    return matches.Select(match => int.Parse(match.Value)).ToArray();
}