public IEnumerator <IDrawableFigure> GetEnumerator()
{
var staticFigures = new FixedFigureCollection();
var visitor = new FigureVisitor();
foreach (var staticFigure in staticFigures)
{
if (staticFigure == null)
{
continue;
}
staticFigure.Accept(visitor);
yield return(staticFigure);
}
}
static void Main(string[] args)
{
IEnumerable <IDrawableFigure> figureCollection = new FixedFigureCollection();
var figureDrawer = new FigureDrawer();
Console.WriteLine("Start drawing figure list:");
Console.WriteLine();
figureDrawer.DrawFigures(figureCollection);
Console.WriteLine();
Console.WriteLine("Drawing blue figures at 20, 20:");
Console.WriteLine();
figureCollection = new VisitedFigureCollection();
figureDrawer.DrawFigures(figureCollection);
Console.ReadLine();
}