public void Save()
{
// Open stream to argument file and override existing file if it exists (don't append).
this.sw = new StreamWriter(DEFAULT_SAVE_FILE, APPEND);
foreach (IValuable o in this.valuables)
{
if (o is Book)
{
Book book = o as Book;
sw.WriteLine("{0};{1};{2};{3}", "BOG", book.ItemId, book.Title, book.Price);
}
if (o is Amulet)
{
Amulet amulet = o as Amulet;
sw.WriteLine("{0};{1};{2};{3}", "AMULET", amulet.ItemId, amulet.Quality, amulet.Design);
}
if (o is Course)
{
Course course = o as Course;
sw.WriteLine("{0};{1};{2}", "COURSE", course.Name, course.DurationInMinutes);
}
}
this.sw.Close();
}
public void Load(string fileName)
{
this.sr = new StreamReader(fileName);
string line;
while ((line = sr.ReadLine()) != null)
{
string[] o;
o = line.Split(";");
switch (o[0])
{
case "BOG":
Book book = new Book(o[1], o[2], double.Parse(o[3]));
AddValuable(book);
break;
case "AMULET":
Amulet amulet = new Amulet(o[1], (Level)Enum.Parse(typeof(Level), o[2]), o[3]);
AddValuable(amulet);
break;
case "COURSE":
Course course = new Course(o[1], int.Parse(o[2]));
AddValuable(course);
break;
default:
break;
}
}
this.sr.Close();
}
public static double GetValueOfMerchandise(Merchandise merchandise)
{
if (merchandise is Book)
{
Book book = merchandise as Book;
return(book.Price);
}
if (merchandise is Amulet)
{
Amulet amulet = merchandise as Amulet;
switch (amulet.Quality)
{
case Level.low:
return(LowQualityValue);
case Level.medium:
return(MediumQualityValue);
case Level.high:
return(HighQualityValue);
default:
return(0.0);
}
}
return(0.00);
}
public static double GetValueOfAmulet(Amulet a11)
{
if (a11.Quality.ToString() == "low")
{
return(12.5);
}
else if (a11.Quality.ToString() == "high")
{
return(27.5);
}
else
{
return(20.0);
}
}
public void AddAmulet(Amulet a)
{
amulets.Add(a);
}