import rwmidi.*;

MidiOutput output;
//El array "scale" no es necesario pero s’ es œtil porque tiene notas v‡lidas; cambiar la escala es una manera de variar la sonoridad.
int scale[] = new int[] {12, 10, 8, 7, 5, 3, 2, 0 };
//int scale[] = new int[] {0, 2, 3, 5, 7, 8, 10, 12 };
int prevPitch = 0;

//the bouncing ball example
//DS

//Max number of balls
int MAX = 150;

//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];
int[] color1 = new int [MAX];
int[] color2 = new int [MAX];
int[] color3 = new int [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(-5,5));
    yspeed[i] = int(random(-5,5));
    x[i] = width/2;
    y[i] = height/2;
    r[i] = 10;
    color1[i]= 255;
    color2[i]= 255;
    color3[i]= 255;

  }

  
  MidiOutputDevice devices[] = RWMidi.getOutputDevices();

//Aqu’ usamos el Device 0 (el que usa el IAC driver). el Device 2 es el Java Synthesizer
  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); 
  }
}

/////////////////


void draw() {
  background(50);                 //first we draw the background
  ellipseMode(CENTER);   //set our ellipse mode
  noStroke();
  for (int i = 0; i < MAX; i++) {
    
    fill(random (color1[i]),random (color2[i]),random (color3[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
    
    output (color1[i]/10);
    output (color2[i]/5);
   output (color3[i]/2);
    
    if (r[i] > 10) {
      r[i]--;
    }
    //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
      
    }
    if ((y[i] > height) || (y[i] < 0)) {
      yspeed[i] = yspeed[i] * -1;
      r[i] = random(10,100);
    }
    
     notoutput(prevPitch);
    
  if(i%4 == 0){
    //if(0 < ypos  &&  ypos< height){
    //if(0 < xpos && xpos < width){
      int posPitch = floor(map(i, 0, MAX, 0, 7));      
      int pitch = scale[posPitch];  
    // println(pitch); 
      output(pitch);    
      prevPitch=pitch;
   // } 
  //}

  }
  }
}




///////////////////////////////////////////
/*
int tono(int x, int y) {
  return scale  [(x + y) % 3 * 12 + 40];
  
}
*/

void output(int tono) {
  output.sendNoteOn(0, tono, 100);
}

void notoutput(int tono) {
  output.sendNoteOff(0, tono, 100);
}