/// <summary>Plays the specified command.</summary>
/// <param name="cmd">The command.</param>
/// <exception cref="NotImplementedException"></exception>
public void Play(ISynchronizedLyricsCommand cmd)
{
switch (cmd.Type)
{
case SynchronizedLyricsCommandType.None: return;
case SynchronizedLyricsCommandType.ClearScreen: ClearScreen((SlcWithColorIndex)cmd); break;
case SynchronizedLyricsCommandType.ReplacePaletteColor: ReplacePaletteColor((SlcReplacePaletteColor)cmd); break;
case SynchronizedLyricsCommandType.ReplacePaletteColors: ReplacePaletteColors((SlcReplacePaletteColors)cmd); break;
case SynchronizedLyricsCommandType.SetTransparentColor: SetTransparentColor((SlcWithColorIndex)cmd); break;
case SynchronizedLyricsCommandType.SetSprite2Colors: SetSprite2Colors((SlcSetSprite2Colors)cmd); break;
case SynchronizedLyricsCommandType.SetSprite2ColorsXOR: SetSprite2Colors((SlcSetSprite2Colors)cmd); break;
case SynchronizedLyricsCommandType.ScreenOffset: SetScreenOffset((SlcScreenOffset)cmd); break;
case SynchronizedLyricsCommandType.ScreenScroll: ScreenScroll((SlcScreenScroll)cmd); break;
case SynchronizedLyricsCommandType.ScreenRoll: ScreenRoll((SlcScreenRoll)cmd); break;
default: throw new NotImplementedException();
}
}
/// <summary>Creates a new <see cref="SynchronizedLyrics"/> instance by parsing the specified stream.</summary>
/// <param name="stream">The stream.</param>
/// <returns></returns>
public static SynchronizedLyrics FromStream(MemoryStream stream)
{
var items = new List <SynchronizedLyricsItem>();
long milliSecond = 0;
var reader = new DataReader(stream);
if (reader.ReadString(3) != "SLT")
{
throw new InvalidDataException("Invalid format!");
}
if (reader.Read7BitEncodedUInt64() != 1)
{
throw new InvalidDataException("Invalid version!");
}
while (reader.Available > 0)
{
long milliSecondDistance = reader.Read7BitEncodedInt64();
milliSecond += milliSecondDistance;
var item = new SynchronizedLyricsItemBuilder();
item.TimeCode = new TimeSpan(milliSecond * TimeSpan.TicksPerMillisecond);
while (true)
{
ISynchronizedLyricsCommand command = SynchronizedLyricsCommand.Parse(reader);
if (command == null)
{
break;
}
item.Commands.Add(command);
}
items.Add(item.ToSynchronizedLyricsItem());
}
return(new SynchronizedLyrics(items));
}
