3D objects

Cube [] cube = new Cube [200];
PShape e;

float angle;
float angle2 = 0.0;
float  angle3= 0.0;
float speed1 = 0.01;
float offset = 10;
float scalar = 100;
float speed = 0.01;
void setup() {
  size(800, 800, P3D);
e =loadShape("tinker (1).obj");
  background(0);
  for (int c = 0; c < cube.length; c ++) {
    cube [c] = new Cube (random(800), random(800), random(400), random(5, 10));
  }
}

void draw () {
  background (0);

  lights();
  strokeWeight(3);
  stroke(255);
  //noStroke();
  noFill();
  //fill(193,193,193,50);
  angle +=0.5;
  pushMatrix();
  translate(width/2, height/2);
  rotateY(radians(angle));
  box(700);
popMatrix();

pushMatrix();
scale(2);
  translate(200, 250,50);
  rotateY(radians(angle));
rotateX(radians(90));
  noStroke();
  fill(36, 67, 255);
  shape(e,0,0);
  popMatrix();
 
 
  pushMatrix();
  angle2 +=speed;
  float x = offset + cos(angle2) * scalar;
  float y = offset + sin(angle2) * scalar;
  translate(width/2, height/2+y, x);
  rotateY(radians(angle));
  noStroke();
  //stroke(random(255),random(255),random(255));
  fill(192, 70, 255);
  sphere(20);
  popMatrix();

  pushMatrix();
  for (int c = 0; c < cube.length; c ++) {
    cube [c].update();
    cube [c].display();
  }
  popMatrix();

  pushMatrix();

  float x2 = offset + cos(angle3) * (scalar +100);
  float y2 = offset + sin(angle3) * (scalar + 100);
  angle3 +=speed1;
  translate(width/2+x2, height/2, y2);
  rotateY(radians(angle));
  rotateX(radians(angle));
  stroke(random(255), random(255), random(255));
  fill(112, 255, 36);
  noStroke();
  sphere(10);
  popMatrix();

}

/// Cube class ( I change to the sphere at the end but still call it Cube).
class Cube {
float  angle3= 0.0;
float speed1 = 0.01;
float offset = 10;
float scalar = 100;
int dir = 1;
float s,x3, y3,z3;
int ex3,ey3,ez3;
Cube(float tx3, float ty3, float tz3,float ts){
  x3 = tx3;
  y3 = ty3;
  z3 = tz3;
  s = ts;

  }

  void update(){
  // x3 = offset + cos(angle3) * (scalar -100);
// y3 = offset + sin(angle3) * (scalar -100);
//angle3 +=speed1;
ex3 +=(x3 -ex3)*0.1;
ey3 +=(y3 -ey3)*0.1;
ez3 +=(z3 -ez3)*0.1;

x3 += 1* dir;
y3 += 1*dir;
z3 += 1*dir;
if( z3 > 400){
  dir = -1;
}
if( x3 > 800){
  dir = -1;
}
if( y3 > 700){
  dir = -1;
}
if( z3 < -100){
  dir = 1;
}

if( x3 < 0){
  dir = 1;
}
if( y3 < 200){
  dir = 1;
}
//for(int i = 0; i > 100; i++){
//float r = map ( i , 0 , 155,0,255);
//}
  }
 
  void display(){
   
pushMatrix();
     translate(ex3, ey3,ez3);
  rotateY(radians(angle));
  rotateX(radians(angle));
  stroke(random(255),random(255),random(255));
  fill(random(255),random(255),random(255));
    noStroke();
      sphere(s);
popMatrix();
     
  }
 
 
   

 
}