import ddf.minim.analysis.*;
import ddf.minim.*;

Minim minim;
//AudioPlayer song;
AudioInput song;
FFT fftLog;
float step;

void setup()
{
  size(1280, 512, P2D);
  smooth();
  minim = new Minim(this);
  song = minim.getLineIn(Minim.STEREO, 1024);
  //song=minim.loadFile("02 Tetragrammaton.mp3",1024);
  fftLog = new FFT(song.bufferSize(), song.sampleRate());
  rectMode(CORNERS);
  background(0);
  //step=float(width)/(song.length()/16.7);
  step=1;
}

void draw()
{
  //background(0);
  fftLog.forward(song.mix);
  //println(fftLog.specSize());
  // draw the full spectrum
  for(int i = 0; i < fftLog.specSize(); i++)
  {
    //stroke(fftLog.getBand(i));
    //strokeWeight(1.5);
    colorMode(HSB,100,100,100,100);
    stroke((100-fftLog.getBand(i))*0.8,100,100,fftLog.getBand(i));
  
    //kinda chromatic notes
    //point(frameCount,i);
    point((frameCount*step)%width,height-i);
    //ahí está tratando de que sea escala Log haciendole raíz cuadrada a las malas :P
    //point(frameCount*step,(height-i));

    //color myColor=color((i*16)%fftLog.specSize(),fftLog.specSize()-(2*i),100);
    //fill(myColor,8);
  }
 
}

void keyPressed(){

 // if(key=='p')song.play();
  if(key=='s'){
    println("saving...");
    saveFrame("thinguies-####.png");
    println("saved.");
  }

}

void stop()
{
  // always close Minim audio classes when you are done with them
  song.close();
  // always stop Minim before exiting
  minim.stop();

  super.stop();
}