/***************************************
  2008.3.29 Dongyoon Park
  cre8ive.park@gmail.com
  http://www.cre8ive.kr
****************************************/

void setup()
{
  size(550,350);    // set screen size.
  background(0);  // set background color.
}

// declare and initialize variables.
int xspeed=10, yspeed=10;
int x=0, y=0;


void draw()
{
  
PImage myimage;

myimage = loadImage("Greece.gif");  
  x = x + xspeed;
  y = y + yspeed;
  
  // screen boundary check
  if( (x < 0) || (x > width-50) ) 
    xspeed = -xspeed;

  if( (y < 0) || (y > height-50) )
    yspeed = -yspeed;  
  
  background(0);
  image(myimage, x, y);


}