import controlP5.*;

import ddf.minim.signals.*;
import ddf.minim.*;
import ddf.minim.analysis.*;
import ddf.minim.effects.*;
import ddf.minim.ugens.*;

Minim minim;
AudioOutput out;

ControlP5 gui;

public float Mass = 0.001f;
public float SpringConstant = 1000.f;
public float Damping = 0.002f;

void setup()
{
  size( 540, 340 );
  
  minim = new Minim(this);
  out = minim.getLineOut();
  
  gui = new ControlP5(this);
  gui.addKnob("Mass", 0.001f, 0.01f, 0.001f, 145, 200, 80);
  gui.addKnob("SpringConstant", 100, 2000, 1000, 275, 200, 80);
  gui.addKnob("Damping", 0.001, 0.1f, 0.002, width/2 + 140, 200, 80);
  gui.addBang("Trigger", 45, 220, 50, 50);
  
}

void draw()
{
  background( 0 );

  stroke( 255 );

  for( int i = 0; i < out.bufferSize() - 1; i++ )
  {
    float x1  =  map( i, 0, out.bufferSize(), 0, width );
    float x2  =  map( i+1, 0, out.bufferSize(), 0, width );
    line( x1, 50 + out.left.get(i)*50, x2, 50 + out.left.get(i+1)*50);
    line( x1, 150 + out.right.get(i)*50, x2, 150 + out.right.get(i+1)*50);
  }  
}

public void Trigger()
{
  out.playNote(0.f, 10.f, new MSDInstrument(Mass, SpringConstant, Damping));
}

void stop()
{
  out.close();
  minim.stop();
  super.stop();
}