Archive for February, 2008

23
Feb

actionScript AS2 (typewriter) text effect

Posted By wassim in Flash, Flash Tutorials

I needed a typewriter text effect with a twist for an mp3 player I was making, looked around and could not find one that suits my needs so I wrote this class, should do the job.

PLAIN TEXT
Actionscript:
  1. /*
  3. @author = Wassim Sidani
  4. @www.sidani.info
  6. usage example:
  8. var tE:TxtEff=new TxtEff(textFieldInstance, textToWrite, delay);
  10. textFieldInstance= a reference to a text field.
  12. textToWrite= the actual text that will be typed in the text field.
  14. delay = dealy in milliseconds before writing next character;
  16. */
  17. class TxtEff extends TextField
  18. {
  19.     function TxtEff (me, txt, delay)
  20.     {
  21.         //clearInterval(myInt);
  22.         //clearTimeout(myOtherIn);
  23.         myClass=this;
  24.         inite (me, txt, delay);
  25.     }
  26.     function inite (me, txt, delay)
  27.     {
  28.        
  29.         var j : Number = 0;
  30.         chars = ['$', '!', '"', '#', '$', '%', '&', "'", '(', ')', '*', '+', ',', '-', '.', '/', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', ':', ';', '<', '=', '>', '?', '@', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', '[', '\\', ']', '^', '_', '`', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', '{', '|', '}', '~', ' '];
  31.         var initialText : String = txt;
  32.         for (k = 0; k <txt.length; k ++)
  33.         {
  34.             me.replaceText (k, k + 1, '-');
  35.         }
  36.         var myInt : Number = setInterval (go, delay, me);
  37.         function go (me)
  38.         {
  39.             //trace('goo is called and me.text ='+me.text);
  40.             if (j <initialText.length)
  41.             {
  42.                 //trace('j is ' + j+" and chars.length is "+chars.length);
  43.                 for (var i = 0; i <chars.length; i ++)
  44.                 {
  45.                     if (initialText.charAt (j) == chars [i])
  46.                     {
  47.                         me.replaceText (j, j + 1, chars [i]);
  48.                         j ++;
  49.                         break;
  50.                     }
  51.                 }
  52.             } else
  53.             {
  54.                 clearInterval (myInt);
  55.                 trace ("done j=" + j);
  56.                 //myOtherIn=setTimeout(myClass.inite,3000,me,txt,delay);
  57.             }
  58.         }
  59.     }
  60.    
  61. }

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