Beispiel #1
0
        public MusicTrack(byte[] data)
        {
            if (data == null)
            {
                throw new ArgumentNullException("data");
            }
            if (data.Length < 16)
            {
                throw new ApplicationException();
            }
            int magic           = BitConv.FromInt32(data, 0);
            int scorelength     = (ushort)BitConv.FromInt16(data, 4);
            int scorestart      = (ushort)BitConv.FromInt16(data, 6);
            int channels        = (ushort)BitConv.FromInt16(data, 8);
            int secchannels     = (ushort)BitConv.FromInt16(data, 10);
            int instrumentcount = (ushort)BitConv.FromInt16(data, 12);
            int unused          = (ushort)BitConv.FromInt16(data, 14);

            if (magic != Magic)
            {
                throw new ApplicationException();
            }
            if (scorestart < 16)
            {
                throw new ApplicationException();
            }
            if (scorelength <= 0)
            {
                throw new ApplicationException();
            }
            if (scorestart + scorelength != data.Length)
            {
                throw new ApplicationException();
            }
            if (scorestart < 16 + instrumentcount * 2)
            {
                throw new ApplicationException();
            }
            instruments = new short [instrumentcount];
            for (int i = 0; i < instrumentcount; i++)
            {
                instruments[i] = BitConv.FromInt16(data, 16 + i * 2);
            }
            score = new List <MusicEvent>();
            int offset = scorestart;

            while (offset != data.Length)
            {
                score.Add(MusicEvent.Parse(data, ref offset));
            }
        }
Beispiel #2
0
 public void Update(double time)
 {
     duration -= time;
     while (track != null && duration <= 0)
     {
         MusicEvent musicevent = track.Score[position++];
         musicevent.Play(system);
         duration += musicevent.Delay / 140.0;
         if (musicevent.IsEndEvent || position >= track.Score.Count)
         {
             if (looping)
             {
                 position = 0;
             }
             else
             {
                 Stop();
             }
         }
     }
 }