Alina

var button, song, amplitude, fft;

var ready=true;

function setup() {

  createCanvas(windowWidth, windowHeight);

  song = loadSound('alina.ogg');

  amplitude = new p5.Amplitude();

  fft = new p5.FFT();

  rot=0;

  noStroke();

  textSize(width*.1);

  text('click!', .4*width, height/2);

}

function draw() {

  if (!ready) {

    background(0, 0, 50);

    textSize(width*.1);

    fill(0,255,128,.01*frameCount);

    text('Happy',width*.35,.2*height);

    text('2019 !',width*.35,.9*height);

    var level=pow(amplitude.getLevel(), .5);

    var spectrum = fft.analyze();

    push();

    translate(width/2, height/2);

    var coeff1=.1+.1*sin(.001*frameCount);

    var coeff2=.1+.1*cos(.0015*frameCount);

    for (i = 0; i<300; i++) {

      fill(128*(1+sin(.05*spectrum[i])), 512*level, 128*(1+cos(.05*spectrum[i])), 50);

      ellipse(width*level*(.5*sin(coeff1*spectrum[i])), height*level*(.5*cos(coeff2*spectrum[i])), spectrum[i]*width/1920, spectrum[i]*width/1920);

    }

    pop();

  }

}

function mousePressed() {

  if (song.isLoaded()) {

    if (ready) {

      song.play();

      ready=false;

    }

  } else alert('Sound file is loading...');

}