int objNum = 0;
int maxObjNum = 1000;
PFont font;
Sphere[] spheres = new Sphere[maxObjNum];


void setup() {
  frameRate(30);
  size(400, 400, P3D); 
  background(255);
  font = loadFont("SansSerif-24.vlw");
  textFont(font,24);
  for (int i = 0; i < 3; i++) {
   addShpere();
  }
}

void draw() {
  background(255);
  lights();
  ambientLight(130,130,130);
  directionalLight(128, 128, 128, 0, -1, -1);

  for (int i = 0; i < objNum; i++) {
   spheres[i].update();
  }
  fill(0);
  text(objNum,20,44);
}

void addShpere() {
  if (objNum < maxObjNum) {
    objNum ++;
    spheres[objNum - 1] = new Sphere();
  }
}

void mousePressed(){
  addShpere();
}


/* ---------- */
class Sphere {
 public float diameter,distance,xr,yr,zr,vxr,vyr,vzr;
 
 Sphere () {
  distance = random(50,100);
  diameter = random(30,50);
  xr = random(0,360);
  yr = random(0,360);
  zr = random(0,360);
  vxr = random(-5,5);
  vyr = random(-5,5);
  vzr = random(-5,5);
 }
 
 void update() {
  xr += vxr;
  yr += vyr;
  zr += vzr;
  pushMatrix();
  translate(width/2, height/2);
  rotateX(radians(xr));
  rotateY(radians(yr));
  rotateZ(radians(zr));
  translate(distance,0,0);
  noStroke();
  fill(100);
  sphere(diameter);
  popMatrix();
 }
}