More BASIC

Not that anybody should care, but I've reimplemented by BASIC.

Here's a simple program.

{-# LANGUAGE ExtendedDefaultRules, OverloadedStrings #-}
import BASIC

main = runBASIC $ do
    10 GOSUB 1000
    20 PRINT "* Welcome to HiLo *"
    30 GOSUB 1000

    100 LET I := INT(100 * RND(0))
    200 PRINT "Guess my number:"
    210 INPUT X
    220 LET S := SGN(I-X)
    230 IF S <> 0 THEN 300

    240 FOR X := 1 TO 5
    250   PRINT X*X;" You won!"
    260 NEXT X
    270 STOP

    300 IF S <> 1 THEN 400
    310 PRINT "Your guess ";X;" is too low."
    320 GOTO 200

    400 PRINT "Your guess ";X;" is too high."
    410 GOTO 200

    1000 PRINT "*******************"
    1010 RETURN

    9999 END

In some ways this is a step backwards, since it requires some language extensions in Main. But I wanted to be able to use semicolon in the print statement.

But there it is, an exciting game!

*******************
* Welcome to HiLo *
*******************
Guess my number:
50
Your guess 50 is too high.
Guess my number:
25
Your guess 25 is too low.
Guess my number:
37
Your guess 37 is too low.
Guess my number:
44
Your guess 44 is too low.
Guess my number:
47
Your guess 47 is too low.
Guess my number:
48
1 You won!
4 You won!
9 You won!
16 You won!
25 You won!