PImage img, topleft, topright, btleft, btright;
float x;
float y;
void setup() {
  size(200, 200);
  img = loadImage("dome2.jpg"); // Load the images into the program
  topleft = new PImage(img.width/2,height/2);
  topright = new PImage(img.width/2,height/2);
  btleft = new PImage(img.width/2,height/2);
  btright = new PImage(img.width/2,height/2);

}
void draw() { 
  background(0);
  topleft.copy(img,0,0,img.width/2,img.height/2,0,0,width/2,height/2);
  topleft.updatePixels();
  image(topleft,x+random(10),y+random(10));

  topright.copy(img,img.width/2,0,img.width/2,img.height/2,0,0,width/2,height/2);
  topright.updatePixels();
  image(topright,x+100+random(10),y+random(10));

  btright.copy(img,img.width/2,img.height/2,img.width/2,height,0,0,width/2,height/2);
  btright.updatePixels();
  image(btright,x+100+random(10),y+100+random(10));

  btleft.copy(img,0,img.height/2,img.width/2,height,0,0,topleft.width/2,height/2);
  btleft.updatePixels();
  image(btleft,x+random(10),y+100+random(10));

  //x += 0.1;*/
}