koobas.hobune.stream
Help me about reading .TXT File
Hi there i have one TXT hile and i wanna use it as one word with one number. Text file...
Character / 0934
US / 0424
Seoul / 0426
etc...
and i wanna read one line such as "seoul, 0426"
FTR the easiest way by far to do this is just use Unity's http://docs.unity3d.com/$$anonymous$$anual/class-TextAsset.html text asset class, as FIreDude explains.
Use the System.IO classes, such as StreamReader:
import System.IO;
var fileName = "foo.txt";
function Start () {
var sr = new StreamReader(Application.dataPath + "/" + fileName);
var fileContents = sr.ReadToEnd();
sr.Close();
var lines = fileContents.Split("\n"[0]);
for (line in lines) {
print (line);
}
}
This reads in the contents of the named text file and splits into separate strings on the newline char.
The "var lines = fileContents.Split("\n"[0]);" line results in a string array, so "lines[134]" would be the 135th line. You can use Split again to split the line into separate elements.
"lines" is a string array...you can't Split a string array, only individual strings. So you'd use "var lineElements = lines[x].Split("/"[0]);", where x is the line number you want to split.
For iPhone and Android, you need to use the correct file path.
I just made a blog post explaining how to obtain a valid file path in a platform-independent way (working on both PC, $$anonymous$$ac, iOS and Android):
Normally in .Net you should use System.IO's Path.Combine() to combine folder and filenames versus directly working with '\' and '/' symbols.
ex: string fullPath = Path.Combine(Application.dataPath, filename);
You can use the Unity Text Asset class, and then use a regex to split it.
Simply do this...
public TextAsset dictionaryTextFile;
and then literally drop your text file in to the project. It would be called something.txt. In the example it is called yourTextFIle.txt...
To convert a TextAsset to one long string, is completely trivial.
You just go .text. That's all there is to it.
That's exactly the reason we all use Unity, rather than actually bothering programming.
You then just convert that one long string to a List<> of strings.
So, in your code, simply do this:
public TextAsset dictionaryTextFile;
private string theWholeFileAsOneLongString;
private List<string> eachLine;
void Start()
{
theWholeFileAsOneLongString = dictionaryTextFile.text;
eachLine = new List<string>();
eachLine.AddRange(
theWholeFileAsOneLongString.Split("\n"[0]) );
// you're done.
Debug.Log(eachLine[4]);
Debug.Log(eachLine[10]);
Debug.Log(eachLine[101]);
Debug.Log(eachLine[0]);
int kWords = eachLine.Count;
Debug.Log(eachLine[kWords-1]);
}
AddRange and .Split("\n"[0]) are just methods to easily convert a long string which is separated by newlines, to, a List<> of words.
Fortunately it's that easy.
@fireDude67 Thank you good sir! After 8 years, this still works great!
You can use the standard c# file api.
If you want to run it in the webplayer or you are using javascript you could use the WWW class to do this.
var pathToFile = "path/to/example.txt"; var url = "file://" + pathToFile; yiel download = new WWW(url);
text = download.data;
pathToFile needs to be a complete path. You could also use a path relative to your unity project. Then you'd have to do this to run in the editor:
var url = "file://" + Application.dataPath + "/../" + pathToFile;
There is no "C# file api". There is only the .NET file API, which works perfectly fine in Javascript or Boo. Also, "file://" doesn't work in the webplayer.
I meant .NET, sorry for being vague. As I don't use javascript or Visual Basic C# and .NET are pretty much the same to me. However you are right, C# is not .NET. "file://" won't work in the web player use "http://" ins$$anonymous$$d. Would StreamReader and Application.dataPath work in a WebPlayer context?
StreamReader doesn't work in the web player, and dataPath returns the absolute URL of the unity file in that case.
How exactly would we open the file?
