public void Interpret(PlayContext context) { if (context.PlayText.Length == 0) { return; } else { string playKey = context.PlayText.Substring(0, 1); context.PlayText = context.PlayText.Substring(2); double playValue = Convert.ToDouble(context.PlayText.Substring(0, context.PlayText.IndexOf(" "))); context.PlayText = context.PlayText.Substring(context.PlayText.IndexOf(" ") + 1); Execute(playKey, playValue); } }
static void Main(string[] args) { Console.WriteLine("Hello World!"); PlayContext context = new PlayContext(); Console.WriteLine("Shanghai Tan: "); context.PlayText = "T 500 O 2 E 0.5 G 0.5 A 3 E 0.5 G 0.5 D 3 E 0.5 G 0.5 A 0.5 O 3 C 1 O 2 A 0.5 G 1 C 0.5 E 0.5 D 3 "; Expression expression = null; try { while (context.PlayText.Length > 0) { string str = context.PlayText.Substring(0, 1); switch (str) { case "O": expression = new Scale(); break; case "T": expression = new Speed(); break; case "C": case "D": case "E": case "F": case "G": case "A": case "B": case "P": expression = new Note(); break; } expression.Interpret(context); } } catch (Exception ex) { Console.WriteLine(ex); } Console.Read(); }