import rwmidi.*;
MidiOutput output;
int scale[] = new int[] {12, 10, 8, 7, 5, 3, 2, 0 };
int prevPitch = 0;

int MAX = 100;

//set up some global variables as arrays now
int[] xspeed = new int[MAX];
int[] yspeed = new int[MAX];
int[] x = new int[MAX];
int[] y = new int[MAX];
float[] r = new float[MAX];
color []elColor = new color [MAX];


//our setup function

void setup() {
  size(800,600);                  //define size
  //initialize all arrays
  for (int i = 0; i < MAX; i++) {
    random(i);
    xspeed[i] = int(random(-10,2));
    yspeed[i] = int(random(-5,2));
    x[i] = mouseX;
    y[i] = mouseY;
    r[i] = 10;
    elColor[i]= color(0,0,0,0);

  }
  MidiOutputDevice devices[] = RWMidi.getOutputDevices();
  output = RWMidi.getOutputDevices()[0].createOutput();
  //ESTE FOR ES PARA QUE APAGUE AL PRINCIPIO CUALQUIER NOTA QUE QUEDE SONANDO
 for(int i=0; i<=127; i++){
   notoutput(i); 
  }
}


//METODOS
int pitchValue(int x, int y) {
  return  (x + y) % 3 * 12 + 40;
}
void output(int y) {
  output.sendNoteOn(0, y+20, 100);
}

void notoutput(int y) {
  output.sendNoteOff(0, y+20, 100);
}

void draw() {
  background(50);                 //first we draw the background
  ellipseMode(CENTER);   //set our ellipse mode
  noStroke();
  for (int i = 0; i < MAX; i++) {
   


    fill(elColor[i]);    			//set ellipse color
    ellipse(x[i],y[i],r[i],r[i]);               //draw ellipse
    //radius always decreases back to 10 if it's bigger
    if (r[i] > (10)) {
      r[i]--;
      elColor[i]= color(random(0,255),0,0);
                     notoutput(prevPitch);
     if(i%2 == 0){
int posPitch = floor(map(i, 0, MAX, 0, 7));      
      int pitch = scale[posPitch];  
     output(pitch);    
      prevPitch=pitch;
}
    }
    //adjust x,y based on speed
    x[i] = x[i] + xspeed[i];
    y[i] = y[i] + yspeed[i];
    //acount for bouncing off edges
    if ((x[i] > width) || (x[i] < 0)) {
      xspeed[i] = xspeed[i] * -1;
      r[i] = random(10,100); //adjust radius when bouncing
      elColor[i]= color(0,255,0);
                     notoutput(prevPitch);
     if(i%2 == 0){
int posPitch = floor(map(i, 0, MAX, 0, 7));      
      int pitch = scale[posPitch];  
     output(pitch);    
      prevPitch=pitch;
}
    }
    if ((y[i] > height) || (y[i] < 0)) {
      yspeed[i] = yspeed[i] * -1;
      r[i] = random(10,100);
      elColor[i]= color(0,0,255);
                     notoutput(prevPitch);
     if(i%2 == 0){
int posPitch = floor(map(i, 0, MAX, 0, 7));      
      int pitch = scale[posPitch];  
     output(pitch);    
      prevPitch=pitch;
}
     notoutput(prevPitch);     
    }

  }
}