Основы программирования

program Vetka2;
uses Graph, CRT;
const
  min = 1;
var
 gd, gm : Integer;
 
procedure lineto1(x, y : Integer; l, u : real);
begin
   Line(x, y, Round(x + l * cos(u)), Round(y - l * sin(u)));
end;
 
procedure Draw(x, y : Integer; l, u : real);
begin
   if KeyPressed then exit;
   if l > min then begin
      lineto1(x, y, l, u);
      x := Round(x + l * cos(u));
      y := Round(y - l * sin(u));
      Draw(x, y, l*0.4, u - pi/4);
      Draw(x, y, l*0.4, u + pi/4);
      Draw(x, y, l*0.7, u);
   end;
end;
 
begin
   gd := Detect;
   InitGraph(gd, gm, 'c:\bp\bgi');
   Draw(320, 460, 120, pi/2);
   ReadKey;
   CloseGraph;
end.