don't show this to igor worst code quality ever :!!!!

public boolean grow=false;
public int size=10;
public float roatateSpeed = 1;

public int x=0;
public int y=0;
public PImage img;
public int effect = 2;

void setup() {
  size(500, 500);
  background(0,0,0);
  img = loadImage("C:\\Users\\nrfmunteanu\\Desktop\\dog.jpg");
  frameRate(1000);
}


void draw() {
  switch(effect){
   case 0:
     printForward();
   break;
   case 1:
     printBackwards();
   break;
   case 2:
     printSideWays();
     break;
  }

  if(mousePressed) {
    background(0,0,0);
    effect = effect == 2 ? 0: effect+1;

    x=-1;
  }

}

PImage getPixel(int x, int y, int size){
  return img.get(x, y, size, size);
}

void printForward(){
  if(x==-1) {
   x=0;
   y=0;
  }
  image(getPixel(x, y, size), x,y);
  if(x >= width && y >= height){
    background(0,0,0);
    x=0;
    y=0;
  }
  if(x == width){
    y+= size;
    x=0;
  }else
    x+=size;
}

void printBackwards(){
  if(x==-1) {
   x=width;
   y=height;
  }
  image(getPixel(x, y, size), x,y);

  if(x <= 0 && y<=0){
    background(0,0,0);
    x=width;
    y=width;
  }
  if(x <= 0){
    y-= size;
    print (x +"\n");
    x= width;

  }else
  x-=size;
}
int x2=0;
void printSideWays(){
  if(x==-1) {
   x=0;
   y=0;
   x2=width;
  }
  if(x==x2 && y >= height){
    x=0;
   y=0;
   x2=width;
   background(0,0,0);
  }
  image(getPixel(x, y, size), x,y);
   image(getPixel(x2, y, size), x2,y);
  if(x==x2){
   x=0;
   x2=width;
   y+=size;
  }else{
   x+=size;
   x2 -= size;
  }
}