int xPos=200;
int xDir=1;
int yPos = 200;
int yDir =1;
int a;
int b;
int c;
PImage img;

void setup()
{
  frameRate(60);

  size (600,600);
  smooth();
  background(255);
  noStroke();
  img = loadImage("2000px-DVD_logo.png");

}

void draw()
{
  fill(a,b,c);
  background(0);
  ellipse(xPos, yPos, 220, 110);
  image(img, xPos-90, yPos-40, 180, 80);
  print(a,"\n");
  xPos=xPos+xDir;
  yPos = yPos+yDir;
  if (xPos>width -110 || xPos<110){
    xDir=-xDir;
    if(a ==0){
    a = 255;
    }
    else if ((a == 255) && (b == 255) && (c == 255) ){
      a = 0;
    }
    else if (c == 0){
    c =255;
    }
    else if(c == 255){
    c =0;
    }

   }
  if (yPos > height -55 || yPos < 55)
  {
    yDir = -yDir;
    if (b ==0){
          b = 255;
    }
    else if(b == 255){
      b = 0;
    }
  }
}