// Learning Processing
  // Daniel Shiffman
  // http://www.learningprocessing.com
  
  // Example 17-6: Text breaking up 
  
  PFont f;
  String message = "click mouse to shake it up";
  
  // An array of Letter objects
  Letter[] letters;
  
  void setup() {
    size(260,200);
    
    // Load the font
    f = createFont("Arial", 20, true);
    textFont(f);
    
    // Create the array the same size as the String
    letters = new Letter[message.length()];
    
    // Initialize Letters at the correct x location
    int x = 16;
    for (int i = 0; i < message.length(); i ++ ) {
      // Letter objects are initialized with their location within the String as well as what character they should display.
      letters[i] = new Letter(x,100,message.charAt(i)); 
      x += textWidth(message.charAt(i));
    }
  }
  
  void draw() {
    background(255);
    for (int i = 0; i < letters.length; i ++ ) {
      
      // Display all letters
      letters[i].display();
      
      // If the mouse is pressed the letters shake
      // If not, they return to their original location
      if (mousePressed) {
        letters[i].shake();
      } else {
        letters[i].home();
      }
    }
  }