import ctext.*;

CText ctext;
CGrammar grammar;

void setup()
{
  size(600, 400);
  ctext = new CText(this, "click!");            
  ctext.setFont("Arial-Black-16.vlw");
  grammar = new CGrammar(this, "bgrammar.g");
}

void draw()
{
  background(255);
  ctext.draw();
}

void mouseClicked()
{
  // call the grammar
  String s = grammar.expand();

  // create a new ctext
  ctext.setText(s);
  ctext.setAlpha(255);	
  ctext.setLocation(width/2, height/3);

  // reset the 'fall' behavior  
  ctext.removeBehaviors();
  ctext.moveTo(width/2, height+20, 3);
  ctext.fadeOut(3);
}