44 lines
2.0 KiB
Racket
44 lines
2.0 KiB
Racket
#lang scribble/doc
|
|
|
|
@(require scribble/manual
|
|
(for-label scheme
|
|
teachpack/htdp/guess))
|
|
|
|
@title[#:tag "guess"]{Guessing Numbers: guess.ss}
|
|
|
|
@declare-exporting[teachpack/htdp/guess]
|
|
|
|
The teachpack provides operations to play a guess-the-number game. Each
|
|
operation display a GUI in which a player can choose specific values for
|
|
some number of digits and then check the guess. The more advanced
|
|
operations ask students to implement more of the game.
|
|
|
|
@defproc[(guess-with-gui [check-guess (-> number? number? symbol?)]) true]{
|
|
The @scheme[check-guess] function consumes two numbers: @scheme[guess], which
|
|
is the user's guess, and @scheme[target], which is the randomly
|
|
chosen number-to-be-guessed. The result is a symbol that reflects the
|
|
relationship of the player's guess to the target.}
|
|
|
|
@defproc[(guess-with-gui-3 [check-guess (-> digit? digit? digit? number? symbol?)]) true]{
|
|
The @scheme[check-guess] function consumes three digits (@scheme[digit0],
|
|
@scheme[digit1], @scheme[digit2]) and one number (@scheme[target]). The
|
|
latter is the randomly chosen number-to-be-guessed; the three digits are
|
|
the current guess. The result is a symbol that reflects the relationship of
|
|
the player's guess (the digits converted to a number) to the target.
|
|
|
|
Note: @scheme[digit0] is the @emph{least} significant digit that
|
|
the user chose and @scheme[digit2] is the @emph{most} significant
|
|
one.}
|
|
|
|
@defproc[(guess-with-gui-list [check-guess (-> (list-of digit?) number? symbol?)]) true]{
|
|
The @scheme[check-guess] function consumes a list of digits
|
|
(@scheme[digits]) and a number (@scheme[target]). The former is a list
|
|
that makes up the user's guess, and the latter is the randomly chosen
|
|
number-to-be-guessed. The result is a symbol that reflects the
|
|
relationship of the player's guess (the digits converted to a number) to
|
|
the target.
|
|
|
|
Note: the first item on @scheme[digits] is the @emph{least}
|
|
significant digit that the user chose, and the last one is the
|
|
@emph{most} significant digit.}
|