program pr;
 uses crt, graph;
 var tmp_d, tmp_m     :     integer; {screen variables}
     p,p1             :     char;    {readkey}
     y_wlcm           :     integer; {Vsplivayushii text}
     i                :     integer; {Vspomogatelnie peremennye}
     cur              :     integer; {Posicia kursora v menu}
     y, stry          :     integer; {Peremennye dlya vyvoda teksta}
     nolect           :     integer; {Nomer lekcii}
     javame, author,
     welcome, dtpa,
     menustatus,
     lectstatus       :     string;
     mainmenu         :     array [1..22] of string; {menu}

     {Procedura inicializacii grafiki}
     procedure init_screen;
     begin
      tmp_d := detect;
      initgraph(tmp_d, tmp_m, '');
     end;

     procedure menu ; forward;
     procedure lections(var lect:integer); forward;

     {Procedura inicializacii peremennyh}
     procedure init_variables;
     begin
      y_wlcm             := -20;
      cur                := 1;
      author             := 'Author: Victor aNNiMON Melnik';
      dtpa               := 'DTPA 2PO-07';
      welcome            := 'Welcome';
      javame             := 'JavaME';
      lectstatus         := 'F1 - Help          T - Test          ESC - Menu';
      menustatus         := 'ESC - Vyhod   UP,DOWN,LEFT,RIGHT - Peredvijenie kursora   ENTER - Perehod';
      {Menu Lekcii}
      for i:= 1 to 10 do
      begin
       mainmenu[i*2-1] := {chr(47+i)+'. }'Lekcia #'+chr(47+i);
       mainmenu[i*2] := 'Test #'+chr(47+i)
      end;
      mainmenu[21] := 'Author';
      mainmenu[22] := 'Exit';
     end;

     {Procedura vyvoda zastavki}
     procedure helloscreen;
     begin
      init_screen;
      repeat
       setcolor(7);
       bar(0,0,640,480);
       settextstyle(1, 0, 7);
       {vyvod texta Welcome s tenyu}
       setcolor(green);
       outtextxy(192, y_wlcm+2, welcome);
       setcolor(lightgreen);
       outtextxy(190, y_wlcm, welcome);
       inc(y_wlcm);
       {Vyvod imeni}
       settextstyle(3, 0, 4);
       setcolor(red);
       outtextxy(y_wlcm*2-100, 281, author);
       setcolor(lightred);
       outtextxy(y_wlcm*2-99, 280,author);
       delay(1000);
       {Vyvod nazvania}
       settextstyle(6,0,8);
       setcolor(lightblue);
       for i:= 1 to 6 do
       begin
        if(y_wlcm/16)<i then break;
        outtextxy(70+i*60, 120, javame[i]);
       end;
      until (y_wlcm>100) or (keypressed);
      readkey;
     end;

     {Vyvod info ob avtore}
     procedure author_screen;
      begin;
       init_screen;
       setcolor(7);
       bar(0,0,640,480);
       settextstyle(1, 0, 7);
       settextstyle(3, 0, 4);
       setcolor(red);
       outtextxy(100, 171, author);
       outtextxy(240, 231, dtpa);
       setcolor(lightred);
       outtextxy(99, 170,author);
       outtextxy(239, 230, dtpa);
       repeat until keypressed;
       menu;
      end;

      {Vyvod pomoschi pri chtenii lekcii}
     procedure help_screen;
      begin;
       init_screen;
       {ochistka ekrana}
      setfillstyle(1,9);
      bar(0,0,640,480);
       {Title}
       setfillstyle(1, 1);
       bar(0, 0, 640, 18);
       setcolor(8);
       settextstyle(2,0,6);
       outtextxy(300, 0, 'Help');
       outtextxy(99, 170, 'B - Smena cveta fona');
       outtextxy(99, 230, 'N - Smena cveta texta');
       repeat until keypressed;
       menu;
      end;

      {Procedura chtenia lectii}
      procedure lections(var lect:integer);
       begin
       init_screen;
       nolect := lect div 2;
     repeat p1:=readkey;
      {Obrabotka klavish upravlenia}
      if p1=#72 then cur:=cur-2 {UP}
      else if p1=#75 then cur:=cur-1 {LEFT}
      else if p1=#80 then cur:=cur+2 {DOWN}
      else if p1=#77 then cur:=cur+1; {RIGHT}
      {else if(p=#13) then cur:=cur-1;
      else if(p=#72) then cur:=cur-1;
      else if(p=#72) then cur:=cur-1; }
      TextWidth('defe');
      {Proverka peremennyh}
      if(cur<2) then cur:=2;
      if(cur>23) then cur:=23;
      {ochistka ekrana}
      setfillstyle(1,9);
      bar(0,0,640,480);
      {Title}
      setfillstyle(1, 1);
      bar(0, 0, 640, 18);
      setcolor(13);
      settextstyle(2,0,6);
      outtextxy(300, 0, 'Lekcia #'+chr(47+nolect));
      {Status}
      setfillstyle(1, 7);
      settextstyle(2,0,4);
      bar(0, 466, 640, 480);
      setcolor(24);
      outtextxy(10, 468, lectstatus);
      {Otrisovka menu}
      setcolor(14);
      settextstyle(1,0,3);

      until (p1=#27) or (p1=#116) or (p1=#59)
{                    or (p=#80) or (p=#80) or (p=#13)};
      if(p1=#116) then menu {T - Test}
      else if(p1=#59) then help_screen; {F1 - Help}
       end;

     {Procedura obrabotki vibrannogo punkta menu}
     procedure choicemenu(var cur:integer);
      begin
      if(cur=22) then author_screen {AUTHOR}
      else if(cur=23) then halt {EXIT}
      else {OTHER}
       begin
         if cur mod 2=0 then lections(cur)
         ;{else question(cur div 2);}
       end;
      end;

     {Procedura vyvoda menu}
     procedure menu;
     begin
      init_screen;
     repeat p:=readkey;
      {Obrabotka klavish upravlenia}
      if p=#72 then cur:=cur-2 {UP}
      else if p=#75 then cur:=cur-1 {LEFT}
      else if p=#80 then cur:=cur+2 {DOWN}
      else if p=#77 then cur:=cur+1 {RIGHT}
      else if p=#13 then choicemenu(cur); {ENTER}
      {else if(p=#13) then cur:=cur-1;
      else if(p=#72) then cur:=cur-1;
      else if(p=#72) then cur:=cur-1; }
      {Proverka peremennyh}
      if(cur<2) then cur:=2;
      if(cur>23) then cur:=23;
      {ochistka ekrana}
      setfillstyle(1,9);
      bar(0,0,640,480);
      {Title}
      setfillstyle(1, 1);
      bar(0, 0, 640, 18);
      setcolor(13);
      settextstyle(2,0,6);
      outtextxy(300, 0, javame);
      {Status}
      setfillstyle(1, 7);
      settextstyle(2,0,4);
      bar(0, 466, 640, 480);
      setcolor(24);
      outtextxy(10, 468, menustatus);
      {Otrisovka menu}
      setcolor(14);
      settextstyle(1,0,3);
      for i:= 1 to 11 do
      begin
        if(i=cur div 2) then
         begin
           setfillstyle(1,3);
           if (cur mod 2=0) then bar(115, 35+i*30, 230, 35+(i+1)*30)
           else bar(315, 35+i*30, 405, 35+(i+1)*30);
           setfillstyle(1,7);
         end;
        outtextxy(120, 40+i*30, mainmenu[i*2-1]);
        outtextxy(320, 40+i*30, mainmenu[i*2]);
      end;
      until (p=#27) {or (p=#72) or (p=#75) or (p=#77)
                    or (p=#80) or (p=#80) or (p=#13)};
      if(p=#27) then halt;
     end;

 {Glavnaya programma}
 begin
    init_variables;
    helloscreen;
    menu;
    closegraph;
 end.