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top - downloadIndex: ┃ B T ┃
Length: 2064 (0x810)
Types: TextFile
Names: »B«
└─⟦a7d1ea751⟧ Bits:30000550 8mm tape, Rational 1000, !users!projects 94_04_11
└─ ⟦129cab021⟧ »DATA«
└─⟦this⟧
└─⟦2f6cfab89⟧ Bits:30000547 8mm tape, Rational 1000, !projects 94-01-04
└─ ⟦d65440be7⟧ »DATA«
└─⟦this⟧
with Text_Io;
package body Square is
package Int_Io is new Text_Io.Integer_Io (Num => Token);
X, Y : Integer;
Square : array (1 .. Size, 1 .. Size) of Token;
procedure Go_To_Center is
begin
X := (Size / 2) + 1;
Y := (Size / 2) + 1;
Move (North);
end Go_To_Center;
procedure Deposit (T : Token) is
begin
Square (X, Y) := T;
end Deposit;
procedure Set_X (A : Integer) is
begin
X := A;
end Set_X;
procedure Set_Y (O : Integer) is
begin
Y := O;
end Set_Y;
procedure Move (D : Direction) is
begin
case D is
when North =>
begin
Y := Y - 1;
if (Y = 0) then
Y := Size;
end if;
end;
when South =>
begin
Y := Y + 1;
if (Y > Size) then
Y := 1;
end if;
end;
when East =>
begin
X := X + 1;
if (X > Size) then
X := 1;
end if;
end;
when West =>
begin
X := X - 1;
if (X = 0) then
X := Size;
end if;
end;
end case;
end Move;
function Get_Token return Token is
begin
return (Square (X, Y));
end Get_Token;
procedure Display is
begin
for I in 1 .. Size loop
Set_Y (O => I);
for J in 1 .. Size loop
Set_X (A => J);
Int_Io.Put (Get_Token);
Text_Io.Put ('|');
end loop;
Text_Io.Put_Line ("");
end loop;
end Display;
begin
for I in 1 .. Size loop
for J in 1 .. Size loop
Square (I, J) := Token (0);
end loop;
end loop;
end Square;