// MOTION 1C, OBJECT ORIENTED, N BALLS

Ball[] myBalls; // declaring a global variable
                // to hold an array of Ball objects

int balls = 25;

void setup()
{
  size(200, 200);
  framerate(25);
  
  myBalls = new Ball[balls];
 
  for (int i = 0; i < balls; i++) 
  {
    myBalls[i] = new Ball(); 

    myBalls[i].x = random(0, 200);
    myBalls[i].y = random(0, 200);
    myBalls[i].vx = random(-15, 15);
    myBalls[i].vy = random(-15, 15);
    myBalls[i].r = 255;
    myBalls[i].g = 0;
    myBalls[i].b = 0;
    myBalls[i].vr = -5;
    myBalls[i].vg = 5;
    myBalls[i].vb = 5;
   
  }
}

void loop()
{
  background(0);

  for (int i = 0; i < balls; i++) // iterating 33 times
  {
//    if(myBalls[i].g > 254 || myBalls[i].b > 254){
//     myBalls[i].vx = 0;    
//      myBalls[i].vy = 0;
//    }  
  myBalls[i].run();
  }
}

class Ball
{
  float x;
  float y;
  float vx;
  float vy;
  float r;
  float g;
  float b;
  float vr;
  float vg;
  float vb;
   
  void run()
  {
    drawShape();

    x = x + vx;
    y = y + vy;
    
    if(x < 0 || x > width){
      vx = -vx;
      r = r + vr;
      g = g + vg;
   }
    if(y < 0 || y > height){
      vy = -vy;
      r = r + vr;
      b = b + vb;
    }
    if(r < 1 || r > 254){
      vr = -vr;
    }
    if(g < 1 || g > 254){
      vg = -vg;
    }
    if(b < 1 || b > 254){
      vb = -vb;
    }
  }


  void drawShape()
  {

    ellipseMode(CENTER_RADIUS);
    noStroke();
    //lights();
    fill(r,g,b);
    ellipse(x,y,4,4);
  }
}