savefilemanager

/// <summary>
/// Provides functionality to read and write save game files.
/// </summary>
public class SaveFileManager
{
    /// <summary>
    /// Initializes the SaveFileManager.
    /// </summary>
    public SaveFileManager(TracerCollection tracers)
    {
        formatter = new BinaryFormatter();
        tracer = tracers["SAVE"];
    }

    BinaryFormatter formatter;
    TraceSource tracer;

    /// <summary>
    /// Writes a save game to the specified binary file.
    /// </summary>
    /// <param name="data">The save game that should be written.</param>
    /// <param name="filename">The path of the file that should be written. If it already exists, it is overwritten.</param>
    public void WriteSaveFile(SaveGameData data, string filename)
    {
        tracer.TraceEvent(TraceEventType.Start, 0, "Begin WriteSaveFile");

        Stream stream = new FileStream(filename, FileMode.Create);
        tracer.TraceInformation("Successfully opened FileStream to {0}", filename);

        formatter.Serialize(stream, data);
        tracer.TraceInformation("Successfully wrote data to file.");

        stream.Close();
        tracer.TraceEvent(TraceEventType.Stop, 0, "End WriteSaveFile");
    }

    /// <summary>
    /// Reads a save game from the specified binary file.
    /// </summary>
    /// <param name="filename">The path of the file that should be read.</param>
    public SaveGameData ReadSaveFile(string filename)
    {
        tracer.TraceEvent(TraceEventType.Start, 1, "Begin ReadSaveFile");

        Stream stream = new FileStream(filename, FileMode.Open);
        tracer.TraceInformation("Successfully opened FileStream to {0}", filename);

        SaveGameData data = (SaveGameData)formatter.Deserialize(stream);
        tracer.TraceInformation("Successfully read data from file.");

        stream.Close();
        tracer.TraceEvent(TraceEventType.Stop, 1, "End ReadSaveFile");
        return data;
    }
}