How to I make a StreamReader skip a line when I already have another delimiter?

Question

Okey. So I'm making this simple script that spawns blocks from an Array, almost like a tilebased 2d game. But it is not preforming as I want it to, I know why, but I have'nt found any solution. Please help me out if you can :)

So here I run the StreamReader with a space as a delimiter:

    StreamReader reader = new StreamReader (@"blablabla\path\levelOneMap.txt");
    string s = reader.ReadToEnd();

    while(s != null)
    {
        char[] delimiter = {' '};
        // Level holder is a string array, wish hold x, s or h.
        levelHolder = s.Split(delimiter, System.StringSplitOptions.RemoveEmptyEntries);

        s = reader.ReadLine();
    }

The file he's reading looks something like this:

x x x

x s x

x h x

And so on, so were the x'es are, it will spawn a block. s is a starting block, and h is just a hole in the ground.

I did a bunch of debug.logs and changed the x, s and h to 1 2 3 4... to see what was going on. Turn out the first 1 2 is fine, but the levelHolder[2] contains both 3 and 4. How can I make this script understand that it should skip both ' ' and '\n' ?

Well... how do I explain this. Running that code, it reads my .txt file and puts my gridsystem into a string array. let's just say for a minute that my .txt file looked like this: 0 1 2 \n 3 4 5 \n 6 7 8 I would like the array for contain each value. But apparently, is does this: levelHolder[0] = 0 levelHolder[1] = 1 levelHolder[2] = 2 3 levelHolder[3] = 4 And so on... — Einar Magnus Bostad, Sep 14 '14 at 16:19
Perhaps just `char[] delimiter = {' ', '\r', '\n'};` I mean, you even said "it should skip both `' '` and `'\n'`. — Ben Voigt, Sep 14 '14 at 16:32
@L.B: Not that I can see. The only call I see that will return any data is the `ReadToEnd()`. — Ben Voigt, Sep 14 '14 at 16:33
@BenVoigt I missed the that line. Both `ReadLine` and `ReadToEnd` :) — L.B, Sep 14 '14 at 16:34
Yeah, adding more stuff in delimiter fixed my problem! Thanks :D Didn't even occour to me that it was possible :p — Einar Magnus Bostad, Sep 14 '14 at 16:40

score 0 · Answer 1 · answered Sep 14 '14 at 16:58

Once you call ReadToEnd(), you have the entire file in a single variable, and the stream has reached end-of-file. Calling ReadLine() after that won't do anything. So you can remove the loop.

Then add whatever delimiters you want, possibly you want all ASCII white-space characters ({ ' ', '\t', '\r', '\n', '\v' }).

That's if you want all the blocks placed into a single levelHolder array. If you want each line in its own array, then keep the loop, and change the initial ReadToEnd() into another ReadLine().

How to I make a StreamReader skip a line when I already have another delimiter?

1 Answers1