/// <summary>
/// Default constructor for the audio player object, sets up inital values
/// </summary>
/// <param name="FirstTrack">The first track to play.</param>
public AudioPlayer(Beat FirstTrack)
{
m_HighPoints = 0;
m_MidPoints = 0;
m_LowPoints = 0;
//Within a changeover period of 1min 31sec (91 seconds) there will be 91 readings aprox, readings are taken once a second
//Therefore a value of 31 as a reading limit makes sense as, there can be a maximum number of (30+30+31) = 91
m_PointsLimit = 31;
m_TimePassed = new TimeSpan(0, 0, 0);
m_ChangeOverPeriod = new TimeSpan(0, 1, 31);
m_ShortChangeOverPeriod = new TimeSpan(0, 0, 45);
m_SoundEngine = new ISoundEngine();
m_NextTrack = FirstTrack;
m_CurrentTrack = FirstTrack;
PlayNextBeat();
}
/// <summary>
/// Resets a few utility variables, then trys to tell the Sound engine to play the next track (m_NextTrack)
/// </summary>
private void PlayNextBeat()
{
m_NextTrackLocked = false;
m_TimePassed = new TimeSpan(0, 0, 0);
m_SoundEngine.StopAllSounds();
try
{
m_SoundEngine.Play2D(m_NextTrack.GetLocation(), false);
}
catch
{
Debugger.AddStringToDebugger("Failed to play a the track the the location: " + m_NextTrack.GetLocation());
}
m_CurrentTrack = m_NextTrack;
}
/// <summary>
/// Tries to lock a beat in. Checks if each of the points (i.e. m_HighPoints) variables have passed
/// the threshold (m_PointsLimit). If the passed beat is of that type then we can lock it in.
/// </summary>
/// <param name="BeatToLockIn">The beat object candidate</param>
private void TryToLockInBeat(Beat BeatToLockIn)
{
if (BeatToLockIn.GetMood() == Moods.High && m_HighPoints >= m_PointsLimit)
{
m_NextTrack = BeatToLockIn;
m_NextTrackLocked = true;
ResetPoints();
}
else if (BeatToLockIn.GetMood() == Moods.Mid && m_MidPoints >= m_PointsLimit)
{
m_NextTrack = BeatToLockIn;
m_NextTrackLocked = true;
ResetPoints();
}
else if (BeatToLockIn.GetMood() == Moods.Low && m_LowPoints >= m_PointsLimit)
{
m_NextTrack = BeatToLockIn;
m_NextTrackLocked = true;
ResetPoints();
}
else
{
//Default case, use whatever has been passed but allow other tracks to become locked in in the meantime
m_NextTrack = BeatToLockIn;
}
}
/// <summary>
/// Attempts to add a track to be played.
/// If a track has already been locked in then the passed parameter is ignored
/// Otherwise it records the number of
/// </summary>
/// <param name="BeatToPlay"></param>
public void TryPlayBeat(Beat BeatToPlay)
{
//If a track is locked, it is garunteed to play. All other readings are ignored
if (!m_NextTrackLocked)
{
SetPoints(BeatToPlay.GetMood());
TryToLockInBeat(BeatToPlay);
}
}
