void kick( float time, float dur, float amp )
{
  mainOut.playNote( time, dur, new Kick(amp) );
}

void vox( float time, float dur, float glitchLen )
{
  mainOut.playNote( time, dur, new RepeatTrigger( glitchLen ) );
}

class Kick implements Instrument
{
  Line freqSweep;
  Line ampSweep;
  Oscil osc;
  
  Kick( float amp )
  {
    osc = new Oscil( 60.f, 1.f, Waves.SINE );
    ampSweep = new Line( 1.f, amp, 0.f );
    freqSweep = new Line( 1.f, 120.f, 10.f );
  }
  
  void noteOn( float dur )
  {
    freqSweep.setLineTime( dur );
    ampSweep.setLineTime( dur );
    
    freqSweep.patch( osc.frequency );
    ampSweep.patch( osc.amplitude );
    
    ampSweep.activate();
    freqSweep.activate();
    osc.patch( mainOut );
  }
  
  void noteOff()
  {
    osc.unpatch( mainOut );
  }
}

class SampleCue implements Instrument
{
  int cueTo;
  int cueEnd;
  Line cueLine;
  
  SampleCue( int to, int end )
  {
    cueTo = to;
    cueEnd = end;
  }
  
  void noteOn( float dur )
  {
    hydra.cue( cueTo );
    hydra.setLoopPoints( cueTo, cueEnd );
    loopAmpSweep.setLineTime( dur );
    loopAmpSweep.activate();
  }
  
  void noteOff()
  {
  }
}

class SequenceBegin implements Instrument
{
  void noteOn( float dur )
  { 
    loopAmp.patch( mainOut );
    
    if ( !MuteVox )
    {
      heapRate.patch( mainOut );
    }
  }
  
  void noteOff()
  {
    hydra.pause();
    heap.pause();
    loopAmp.unpatch( mainOut );
    heapRate.unpatch( mainOut );
  }
}

class SequenceEnd implements Instrument
{
  void noteOn( float dur )
  {
    gui.controller("Generate").show();
    gui.controller("Generate").setMousePressed( false );
  }
  
  void noteOff()
  {
  }
}

class RepeatTrigger implements Instrument
{
  float m_sampleLength;
  
  RepeatTrigger( float sampleLength )
  {
    m_sampleLength = sampleLength;
  }
  
  void noteOn( float dur )
  {
    heapGlitch.setSampleLength( heapTempo, m_sampleLength );
    heapGlitch.activate();
  }
  
  void noteOff()
  {
    heapGlitch.deactivate();
  }
}