public void ClickPrevious(MobileSpeaker speaker)
{
var index = speaker.Playlist.FindIndex(x => x.Name == speaker.CurrentTrack.Name);
if (index == 0)
{
speaker.CurrentTrack = speaker.Playlist.ElementAt(speaker.Playlist.Count - 1);
}
else
{
speaker.CurrentTrack = speaker.Playlist.ElementAt((index - 1));
}
}
public void ClickLock(MobileSpeaker speaker)
{
var type = speaker.PreviousState.GetType();
if (type.Name == "Ready")
{
speaker.State = new Ready();
}
else
{
speaker.State = new Playing();
}
speaker.PreviousState = new Holded();
}
static void Main(string[] args)
{
MobileSpeaker speaker = new MobileSpeaker();
speaker.State = new Ready();
speaker.PreviousState = new Ready();
speaker.Playlist = new List <MusicTrack>
{
new MusicTrack {
Name = "1", Duration = 180, URL = ""
},
new MusicTrack {
Name = "2", Duration = 220, URL = ""
},
new MusicTrack {
Name = "3", Duration = 120, URL = ""
},
};
speaker.CurrentTrack = speaker.Playlist.ElementAt(1);
speaker.ClickPlay();
speaker.ReportState();
speaker.ClickNext();
//speaker.ClickPrevious();
speaker.ReportState();
speaker.ClickLock();
speaker.ReportState();
speaker.ClickPlay();
speaker.ReportState();
speaker.ClickLock();
speaker.ReportState();
speaker.ClickPlay();
speaker.ReportState();
Console.ReadLine();
}
public void ClickPrevious(MobileSpeaker speaker)
{
}
public void ClickPlay(MobileSpeaker speaker)
{
}
public void ClickNext(MobileSpeaker speaker)
{
}
public void ClickLock(MobileSpeaker speaker)
{
speaker.PreviousState = speaker.State;
speaker.State = new Holded();
}
public void ClickPlay(MobileSpeaker speaker)
{
speaker.PreviousState = speaker.State;
speaker.State = new Ready();
}
public void ClickNext(MobileSpeaker speaker)
{
var index = speaker.Playlist.FindIndex(x => x.Name == speaker.CurrentTrack.Name);
speaker.CurrentTrack = speaker.Playlist.ElementAt((index + 1) % speaker.Playlist.Count);
}
