Змейка на паскале Опции

[-QWERTY-]

Вот, только там есть маленькие недорабоки:

uses CRT, Graph;
type TPoint = record
              X, Y: integer;
              end;
     MAS = array[1..1000] of TPoint;
var A: MAS;
    N, C: integer;
    T1: TPoint;
    Key: Char;
procedure DRIVER;
var Gd, Gm: integer;
begin
     Gd:=Detect;
     InitGraph(Gd, Gm, '');
end;
procedure POLE;
begin
     moveto(51, 51);
     lineto(428, 51);
     lineto(428, 428);
     lineto(51, 428);
     lineto(51, 51);
end;
procedure PAINT(T: TPoint; N: integer);
begin
     case N of
     1: SetColor(White);
     2: SetColor(Black);
     3: SetColor(Red);
     end;
     Rectangle(T.X*15-15+52, T.Y*15-15+52, T.X*15+52, T.Y*15+52);
end;
procedure GAMEOVER(A: MAS; N: integer; var Key: char);
var I: integer;
begin
     if (A[N].X=0) or (A[N].X=26) or (A[N].Y=0) or (A[N].Y=26) then
             Key:='q';
     for I:=1 to N-1 do
         if (A[N].X=A[I].X) and (A[N].Y=A[I].Y) then
            Key:='q';
end;
procedure METKA(var T1: TPoint);
begin
     T1.X:=Random(25)+1; T1.Y:=Random(25)+1;
     Paint(T1, 3);
end;
procedure SNAKE(A: MAS; N: integer; Key: char; var B: MAS);
var T: TPoint;
    I, X, Y: integer;
begin
     case Key of
     'w': begin X:=0; Y:=-1; end;
     'a': begin X:=-1; Y:=0; end;
     's': begin X:=0; Y:=1; end;
     'd': begin X:=1; Y:=0; end;
     end;
     T:=A[1];
     for I:=1 to N-1 do
         A[I]:=A[I+1];
     A[N].X:=A[N].X+X; A[N].Y:=A[N].Y+Y;
     PAINT(T, 2);
     for I:=1 to N do
         PAINT(A[I], 1);
     for I:=1 to N do
         B[I]:=A[I];
end;
begin
     DRIVER;
     POLE;
     A[1].X:=1; A[1].Y:=1; A[2].X:=2; A[2].Y:=1;
     N:=2;
     C:=0;
     Key:='d';
     repeat
           if C=30 then
              begin
                   PAINT(T1, 2);
                   METKA(T1);
                   C:=0;
              end;
           inc©;
           if (T1.X=A[N].X) and (T1.Y=A[N].Y) then
              begin
                   inc(N);
                   C:=30;
                   A[N]:=T1;
              end;
           if KeyPressed then
              Key:=readkey;
           Delay(9000);
           SNAKE(A, N, Key, A);
           GAMEOVER(A, N, Key);
     until Key='q';
     OutTextXY(315, 238, 'GAME OVER');
     OutTextXY(302, 250, 'press any key');
     readkey;
end.