import processing.serial.*; 
Serial port; 
import ddf.minim.*;

Minim minim;
AudioInput in;

float[] x = new float[75];
float[] y = new float[75];
float[] angle = new float[75];
float[] speed = new float[75];
float[] radius = new float[75];
float speedRan = 1;
float radRan = 150;
float circleColor = 255;

void setup(){
   println(Serial.list()); 

  // Open the port that the Arduino board is connected to (in this case #0) 
  // Make sure to open the port at the same speed Arduino is using (9600bps) 
  port = new Serial(this, Serial.list()[2], 9600); 
  
   minim = new Minim(this);
  minim.debugOn();
  
  // get a line in from Minim, default bit depth is 16
  in = minim.getLineIn(Minim.MONO, 75);
  
   size(500, 500); 
   smooth(); 
   background(114, 168, 255);
   
   
   for(int i = 0; i < x.length; i++) {
     //set angles
     angle[i] = random(-0.1, 0.1);
     //set start positions
     x[i] = random(500);
     y[i] = random(500);
     //set radius
     radius[i] = random(150);
     //set speed
     speed[i] = random(0.5);
   }
} 

void draw(){
   background(114, 168, 255);
   
   
   for (int i = 0; i < x.length; i++) {
     //change angle
     angle[i] += random(-0.1, 0.1);
     //change x
     x[i] += cos(angle[i]) * speed[i];
     //change y
     y[i] += sin(angle[i]) * speed[i];
     //draw circles
     fill(255);
     stroke(140);
     strokeWeight(5);
     ellipse (x[i], y[i], radius[i], radius[i]);
   }
   
   for (int i = 0; i < x.length; i++) {
      float circleSound = in.left.get(i);
     if (circleSound > 0.02) {
        port.write('A');
     }
     if (circleSound > .07) {
        port.write('B');
     }
     if (circleSound > .12) {
        port.write('C');
     }
     if (circleSound > .17) {
        port.write('D');
     }
     port.write('L'); 
   } 
   
   for (int i = 0; i < x.length; i++) {
   //draw top circles
     circleColor = in.left.get(i);  
     circleColor = map(circleColor, 0, 1, 0, 255);
     circleColor = -1 * (circleColor-255);
     fill(circleColor);
     noStroke();
     ellipse (x[i], y[i], radius[i], radius[i]);
   }
   
 //recenter object after leaving stage and change size/speed
 for (int i = 0; i < x.length; i++) {
     if (x[i] < -150 || y[i] < -150){
     x[i] = 250;
     y[i] = 250;
     speed[i] = random(speedRan);
     //speedRan +=.05;
     radius[i] = random(radRan);
     //radRan -= 0.1;
   } else if (x[i] > 650 || y[i] > 650){
       x[i] = 250;
       y[i] = 250;
     speed[i] = random(speedRan);
     //speedRan +=.1;
     radius[i] = random(radRan);
     //radRan -= 0.1;
   }
 }  
}

void stop()
{
  // always close Minim audio classes when you are done with them
  in.close();
  minim.stop();
  
  super.stop();
}