void autoexec()

{

int X, Y, S, T, C;

int W, H;



W = ImageWidth(screen);

H = ImageHeight(screen);



RectFill(0,0,W-1,H-1,RGB(0,0,0),screen);



   while(!key[SCAN_ESC])

   {

      X = Random(0, W);

      Y = Random(0, H);

      S = Random(5, 15);

      T = timer%5;

      if (T==1) C = Random(0, 255);

      UpdateControls();

      RectFill(X,Y,X+S,Y+S,

         RGB(128+(C/2),C,128-(C/2)),screen);

      ShowPage();

   }

}