Waiting for a Function to Complete

Hi,

I have a script which reads a text file a line at a time and then outputs that line a character at a time, teletype style.

import System.IO; var textAsset : TextAsset; var letterPause = 0.2; var linePause = 10; var sound : AudioClip; private var word;

function Start() { readFile(); }

function readFile() { if (textAsset == null) return; reader = new StringReader(textAsset.text); line = reader.ReadLine(); while (line != null) { yield WaitForSeconds(linePause); word = line; TypeText(); line = reader.ReadLine(); } }

function TypeText () { for (var letter in word.ToCharArray()) { guiText.text += letter; if (sound) audio.PlayOneShot (sound); yield WaitForSeconds (letterPause); } guiText.text += "\n"; }

This works, but by using the yield WaitForSeconds it's limited by being fixed. I wanted to try to pause the readFile() function until the TypeText() has finished outputting the line. So, I did this:

import System.IO; var textAsset : TextAsset; var letterPause = 0.2; var linePause = 10; var sound : AudioClip; private var word; private var inProgress : boolean = false;

function Start() { readFile(); }

function readFile() { if (textAsset == null) return; reader = new StringReader(textAsset.text); line = reader.ReadLine(); while (line != null) { if(inProgress == false){ // also tried this as if(!inProgress) word = line; TypeText(); line = reader.ReadLine(); } } }

function TypeText () { inProgress = true; for (var letter in word.ToCharArray()) { guiText.text += letter; if (sound) audio.PlayOneShot (sound); yield WaitForSeconds (letterPause); } guiText.text += "\n"; yield WaitForSeconds(2); inProgress = false; }

When I try to run the game then, Unity just freezes. I get the initial dimming, but the button never goes blue and the game view never comes up. Unity locks up completely and I have to force it to quit.

What am I missing or not understanding here?

[edit] Oh, and no error messages. Also Windows 7 and Unity Free.

tia