import ddf.minim.*;
import rita.*;

/*
 * @desc Displays lines one character at a time with sound.
 */

String s = "This is a typewriter typing a line.";

int idx;
RiText rt;
RiSample key, bell;

void setup() 
{ 
  size(400,400);

  RiText.createDefaultFont("arial", 24);
  rt = new RiText(this, s.charAt(idx++), 20, 30);

  key = RiTa.loadSample(this, "key.wav");
  bell = RiTa.loadSample(this, "bell.wav");

  RiTa.setCallbackTimer(this, "keytimer", .1f);
}

void onRiTaEvent(RiTaEvent re) { 
  rt.setText(s.substring(0, idx));
  if (idx++ == s.length()) { // start a new line
    RiTa.resetCallbackTimer(this, "keytimer", .5f, .1f);
    float nextY = rt.y + 30;
    rt = new RiText(this,"", 20, nextY);
    bell.play();
    idx = 0;
  }   
  else if (!rt.getText().endsWith(" ")) 
    key.play();    
}

void draw() {
  background(255);
}