public override void BuildLevel(Screens.PlayScreen screen)
{
this.screen = screen;
Factory.AddSpikeRow(screen, -100, GameConstants.ScreenHeight - 30, 10);
Factory.AddLineObject(screen, 90, 400, 0, 0);
star1 = Factory.AddStar(screen, 205, 230);
star2 = Factory.AddStar(screen, 400, 260);
LineObject l = Factory.AddHalfLineObject(screen, 325, 400, 0, 0);
Factory.AddBackAndForthTransform(l, 35, 175, 0);
star3 = Factory.AddStar(screen, 575, 230);
l = Factory.AddLineObject(screen, 710, 400, 0, 0); // end
StickyBirdObj bird = Factory.AddBird(screen, 120, 250);
screen.SetBird(bird);
Factory.AddNest(screen, 700, 380);
}