factor/extra/numbers-game/numbers-game.factor

28 lines
722 B
Factor

USING: kernel math math.parser random io ;
IN: numbers-game
: read-number ( -- n ) readln string>number ;
: guess-banner
"I'm thinking of a number between 0 and 100." print ;
: guess-prompt "Enter your guess: " write ;
: too-high "Too high" print ;
: too-low "Too low" print ;
: correct "Correct - you win!" print ;
: inexact-guess ( actual guess -- )
< [ too-high ] [ too-low ] if ;
: judge-guess ( actual guess -- ? )
2dup = [ 2drop correct f ] [ inexact-guess t ] if ;
: number-to-guess ( -- n ) 100 random ;
: numbers-game-loop ( actual -- )
dup guess-prompt read-number judge-guess
[ numbers-game-loop ] [ drop ] if ;
: numbers-game number-to-guess numbers-game-loop ;
MAIN: numbers-game