private Track GetRandomWorkingTrack()
{
var excludeTracks = new List <Track>();
excludeTracks.Add(this.CurrentTrack);
excludeTracks.AddRange(_history);
var preferredTracks = this.MixLibrary.GetPreferredTracks(this.CurrentTrack);
var forbiddenTracks = this.MixLibrary.GetForbiddenTracks(this.CurrentTrack);
excludeTracks.AddRange(forbiddenTracks);
excludeTracks.AddRange(preferredTracks);
Track randomTrack = null;
if (this.WorkingTrack != null && this.CurrentTrack != this.WorkingTrack && this.CurrentTrack != null)
{
randomTrack = this.WorkingTrack;
}
else if (this.WorkingTrack != null)
{
var currentTrack = this.CurrentTrack;
if (currentTrack == null)
{
currentTrack = this.WorkingTrack;
}
randomTrack = BassHelper.GetTracksInBPMRange(currentTrack.EndBPM, 5M, this.Library.GetTracks())
.Union(BassHelper.GetTracksInEndBPMRange(currentTrack.StartBPM, 5M, this.Library.GetTracks()))
.Distinct()
.Except(excludeTracks)
.OrderBy(t => BassHelper.AbsoluteBPMPercentChange(currentTrack.EndBPM, t.StartBPM))
.FirstOrDefault();
}
if (randomTrack == null)
{
randomTrack = this.WorkingTrack;
}
return(randomTrack);
}
/// <summary>
/// Gets all preferred tracks for the specified track
/// </summary>
/// <param name="track">The track.</param>
/// <returns>A list of tracks in the library the specified track should prefer to mix with</returns>
public List <Track> GetMixableTracks(Track track, int mixLevel)
{
var tracks = new List <Track>();
if (track == null)
{
return(tracks);
}
if (mixLevel == 1)
{
var excludeTracks = new List <Track>();
excludeTracks.Add(track);
excludeTracks.AddRange(GetMixableTracks(track, 0));
excludeTracks.AddRange(GetMixableTracks(track, 2));
excludeTracks.AddRange(GetMixableTracks(track, 3));
excludeTracks.AddRange(GetMixableTracks(track, 4));
excludeTracks.AddRange(GetMixableTracks(track, 5));
var tracksInRange = BassHelper.GetTracksInBPMRange(track.EndBPM, 5M, _library.GetTracks());
return(tracksInRange
.Distinct()
.Except(excludeTracks)
.ToList());
}
else
{
foreach (var toTrack in GetMixTracks(track).GetToTracks(mixLevel))
{
var mixableTrack = _library.GetTracks()
.Where(t => t.Description == toTrack.TrackDescription)
.FirstOrDefault();
if (mixableTrack != null)
{
tracks.Add(mixableTrack);
}
}
}
return(tracks);
}
