float TICKET_WIDTH=25;
float TICKET_HEIGHT=5;

color[] TICKET_COLOURS=new color[5];

void setup_ticket_colours()
{
  for (int i=0; i<TICKET_COLOURS.length; i++)
  {
    TICKET_COLOURS[i]=color(random(255),random(255),random(255),192);
  }
}

final class Ticket
{
  int colour;
  Ticket()
  {
    colour=int(random(TICKET_COLOURS.length));
  }
  void draw()
  {
    fill(TICKET_COLOURS[colour]);
    rect(0,0,TICKET_WIDTH,TICKET_HEIGHT);
  }
}