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

ParticleSystem ps;
Minim minim;
AudioPlayer song;
AudioInput input;
AudioMetaData meta;
FFT fft;
BeatDetect beat;
BeatListener bl;
float oRadius, sRadius, hRadius, kRadius;

int ys = 15;
int yi = 35;

void setup() {
  size(720,480, P3D);
 // frameRate(30);
  ps = new ParticleSystem(1, new PVector(width/2,height/2,0));
  smooth();
  minim = new Minim(this);
  song = minim.loadFile("doubtful.mp3", 1024);
  input = minim.getLineIn();
  meta = song.getMetaData();
  fft = new FFT(song.bufferSize(), song.sampleRate());
  beat = new BeatDetect(song.bufferSize(), song.sampleRate());
  beat.setSensitivity(300);  
  bl = new BeatListener(beat, song);
  textFont( loadFont("arial.vlw") );
  textMode(SCREEN);
// song.loop();
song.play();
}

void draw() {
  background(0);
  meta();
  waveForm();
  freq2();
  freq();
  beatWatch();
  ps.run();

}

void meta() {
  int y = ys;
  noStroke();
  fill(100);
  rect(0,0,width,20);
  fill(180);
  textSize(10);
  text(meta.fileName(), 5, y);
  text("Author: " + meta.author(), 100, y);
  text("Album: " + meta.album(), 250, y);
}
void waveForm() {
  stroke(0,255,0,128);
  strokeWeight(1);
  int waveYa = width/2 - 50;
  int waveYb = width/2 - 60;
  for(int i = 0; i < song.bufferSize() - 1; i++)
  {
    stroke(251,195,164,128);
    line(i, waveYa + song.left.get(i)*50, i+1, waveYa + song.left.get(i+1)*50);
    stroke(251,120,164,128);
    line(i, waveYa + song.left.get(i)*60, i+1, waveYa + song.left.get(i+1)*50);
    stroke(251,70,164,128);
    line(i, waveYa + song.left.get(i)*70, i+1, waveYa + song.left.get(i+1)*50);
    stroke(251,40,164,128);
    line(i, waveYa + song.left.get(i)*80, i+1, waveYa + song.left.get(i+1)*50);
    stroke(251,0,164,128);
    line(i, waveYa + song.left.get(i)*90, i+1, waveYa + song.left.get(i+1)*50);
    stroke(0, 255, 0, 128);
    line(i, waveYb + song.right.get(i)*50, i+1, waveYb + song.right.get(i+1)*50);
    stroke(0, 200, 0, 128);
    line(i, waveYb + song.right.get(i)*60, i+1, waveYb + song.right.get(i+1)*50);
    stroke(0, 175, 0, 128);
    line(i, waveYb + song.right.get(i)*70, i+1, waveYb + song.right.get(i+1)*50);
    stroke(0, 120, 0, 128);
    line(i, waveYb + song.right.get(i)*80, i+1, waveYb + song.right.get(i+1)*50);
    stroke(0, 70, 0, 128);
    line(i, waveYb + song.right.get(i)*90, i+1, waveYb + song.right.get(i+1)*50);

  }
}
void freq() {
  fft.forward(song.mix);
  stroke(255,255,255,128);
  strokeWeight(3);
  for(int i = 0; i < fft.specSize(); i++)
  {
    line(i, height, i, height - fft.getBand(i)*3);
  }
  stroke(255,255,255,128);
  for(int i = 0; i < fft.specSize(); i++)
  {
    line(width - i, height, width - i, height - fft.getBand(i)*3);
  }
}
void freq2() {
  fft.forward(song.mix);
  stroke(255,255,255,128);
  strokeWeight(3);
  for(int i = 0; i < width/2; i++)
  {
    point(i, 20 + fft.getBand(i)*3);
    point(width - i, 20 + fft.getBand(i)*3);
  }
}
void beatWatch() {
  fill(60, 255, 0, 50);
  noStroke();
  if ( beat.isOnset() ) oRadius = 80;
  if ( beat.isKick() ) kRadius = 80;
  if ( beat.isSnare() ) sRadius = 80;
  if ( beat.isHat() ) hRadius = 80;
  ellipse(width/2, height/2 - 10, oRadius, oRadius);
  ellipse(width/2, height/2, kRadius, kRadius);
  ellipse(width/2, height/2 - 10, sRadius, sRadius);
  ellipse(width/2, height/2, hRadius, hRadius);
  ellipse(width/2, height/2 - 20, oRadius, oRadius);
  ellipse(width/2, height/2 - 30 , kRadius, kRadius);
  ellipse(width/2, height/2 - 20, sRadius, sRadius);
  ellipse(width/2, height/2 - 30, hRadius, hRadius);
  oRadius *= 0.95;
  kRadius *= 0.95;
  sRadius *= 0.95;
  hRadius *= 0.95;
  if (beat.isHat()) ps.addParticle(width/2, height/2 - 10);

}

void stop() {
  song.close();
  input.close();
  minim.stop();
  super.stop();
}