blacklight

class Universe 

  {

  float gravityX = 0;

  float gravityY = 2.5;

  float gravityZ = 0;

  float threshold_radius = 20;

  float bounceX;

  float bounceSpeed;

  float speed;

  int size = 100;

  int steps = 0;

  Sphere[] elements = {}; 

   void draw ()

     {

     translate (0, 0, -1000); 

     for (int i = 0; i < elements.length; i++)

      {

      	elements [i].draw ();

      }

     step ();

     }

   void step ()

     {

     for (int i = 0; i < elements.length; i++)

      {

      	elements [i].step ();

      }

     steps++;

     }

   Sphere create ()

     {

     	Sphere s = new Sphere ();

      // random initial position

      //s.x0  =  (int) random (width);

      //s.y0  =  (int) random (height);

      //s.z0  =  -(int) random (width);

      s.red    =  (int) random (255);

      s.green  =  (int) random (255);

      s.blue   =  (int) random (255);

  /*    if (SPHERE_START == SPHERE_START_MODE_POINT)

        {

        s.x0  =  (float) SPHERE_STARTX;

        s.y0  =  (float) SPHERE_STARTY;

        s.z0  =  (float) SPHERE_STARTZ;

        }

      else if (SPHERE_START == SPHERE_START_MODE_RANDOM)

        {

        s.x0  =  random (WIDTH);

        s.y0  =  random (HEIGHT);

        s.z0  =  (float) SPHERE_STARTZ;

        }

    */  

    //TEMP

        s.x0  =  random (_width_);

        s.y0  =  random (_height_);

        s.z0  =  (float) 0;

      s.v0x =   random (speed) - (speed / 2);

      s.v0y =   random (speed) - (speed / 2);

      s.v0z =   random (speed) ;

      add (s);      

      s.be ();

     return s;

     }

   void add (Sphere s)

     {

     s.id = elements.length;

     s.universe = this;

     elements = (Sphere [])append (elements, s);

     }

   boolean gameover ()

     {

     boolean gameover = true;

     for (int i = 0; i < elements.length; i++)

       {

       gameover &= elements [i].destroyed;

       if (!gameover)

         return false;

       }

     return true;

     }

  }