// Learning Processing
  // Daniel Shiffman
  // http://www.learningprocessing.com
  
  // Example 9-10: Interactive stripes
  
  class Stripe {
    
    float x;     // horizontal location of stripe
    float speed; // speed of stripe
    float w;     // width of stripe
    
    // A boolean variable keeps track of the object's state.
    boolean mouse; // state of stripe (mouse is over or not?)
  
    Stripe() {
      // All stripes start at 0
      x = 0; 
      // All stripes have a random positive speed
      speed = random(1); 
      w = random(10,30);
      mouse = false;
    }
  
    // Draw stripe
    void display() {
      
      // Boolean variable determines Stripe color.
      if (mouse) { 
        fill(255);
      } else {
        fill(255,100);
      }
      
      noStroke();
      rect(x,0,w,height);
    }
  
    // Move stripe
    void move() {
      x += speed;
      if (x > width + 20) x = -20;
    }
  
  // Check to see if point (mx,my) is inside the Stripe.
    void rollover(int mx, int my) { 
      // Left edge is x, Right edge is x + w
      if (mx > x && mx < x + w) {
        mouse = true;
      } else {
        mouse = false;
      }
    }
  }