import ddf.minim.*;
import ddf.minim.signals.*;
String signal = "off";
int select = 0;

Minim minim;
AudioOutput out;
color[] colorMenu = {#f94d14, #46d2e3, #6ba55c, #e3bb6b};
SineWave[] drawSound = new SineWave[4];

void setup()
{
  size(500, 500);
  background(0);
  smooth();
  minim = new Minim(this);
  out = minim.getLineOut(Minim.STEREO, 2048);
  for (int i=0; i<4; i++) {
  drawSound[i] = new SineWave(300*(i+1), .2, out.sampleRate());
  drawSound[i].portamento(200);
  out.addSignal(drawSound[i]);
  }
  out.noSound();
}

void draw()
{
  for (int i=0; i<4; i++) {
  stroke(0);
  if (i == select) {
    stroke(255);
  }
  fill(colorMenu[i]);
  ellipse(20,(i+1)*20,16,16);
  }
  fill(0,5);
  noStroke();
  rect(0,0,width,height);
  stroke(colorMenu[select]);
  strokeWeight(3);
  if (signal == "on") {
  line(mouseX,mouseY,pmouseX,pmouseY);
  }
  strokeWeight(1);
}

void mouseMoved()
{
  if (signal == "on") {
  float freq = map(mouseY, height, 0, 60, 300*(select+1));
  drawSound[select].setFreq(freq);
  float pan = map(mouseX, 0, width, -1, 1);
  drawSound[select].setPan(pan);
  out.enableSignal(drawSound[select]);
  }
}

void mouseClicked() {
  if (signal == "off") {
    signal = "on";
  } else {
  out.noSound();
  signal = "off";
  }
  for (int i=0; i<4; i++) {
  if (mouseX>10 && mouseX<30 && mouseY>10+i*20 && mouseY<30+i*20) {
    select = i;
    out.noSound();
    signal = "off";
    }
  }
}

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