#define WIDTH  640 //width of the window
#define HEIGHT  480 //height of the window

#define RESTART 1 //numeric representation for restarting the animation
#define TERMINATE 2 //numeric representation for terminating the animation

#define MARGIN 10 //defines the number of intention pixels from the side of the pattern to be rendered
#define UNIT 50 //the number of square units/boxes to be drawn

#define DELAY 50 //time interval before rendering the next line(in milliseconds)
