#!/usr/local/bin/bush

-- game.bush
--
-- This is a number guessing game.
-- Demo program for the Bush shell
-- by Ken O. Burtch

procedure game is
  n1    : constant integer := integer( numerics.rnd( 4 ) );
  n2    : constant integer := integer( numerics.rnd( 4 ) );
  n3    : constant integer := integer( numerics.rnd( 4 ) );
  reply : integer;
  match : integer;
begin
  clear;
  put_line( "Numbers Game" );
  new_line;

  put_line( "I've chosen three numbers between 1 and 4" );
  put_line( "Guess what they are!  You've got 10 tries." );
  new_line;

  for guess in 1..10 loop

    put_line( "Guess #" & strings.image( guess ) & ":" );

    put( "  Number 1? (1-4)" );
    reply := numerics.value( inkey & "" );
    put_line( reply );
    if reply = n1 then
       match := 1;
    else
       match := 0;
    end if;

    put( "  Number 2? (1-4)" );
    reply := numerics.value( inkey & "" );
    put_line( reply );
    if reply = n2 then
       match := @+1;
    else
       match := @+0;
    end if;

    put( "  Number 3? (1-4)" );
    reply := numerics.value( inkey & "" );
    put_line( reply );
    if reply = n3 then
       match := @+1;
    else
       match := @+0;
    end if;

    if match = 3 then
       put_line( "You've got the numbers right!" );
       exit;
    elsif guess = 10 then
       put_line( "You're out of guesses." );
       exit;
    else
       put_line( "You've got" & strings.image( match ) & " right." );
    end if;

  end loop;

  new_line;
  put( "The numbers were" ) @( n1 ) @( "," ) @( n2 ) @( " and" );
  put_line( n3 );
  new_line;
  put_line( "Thanks for playing." );

end game;

