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cantedraw/src/main.lisp
Aryadev Chavali f00335d457 Implement read-and-confirm for extra step before re-deal
Found that I sometimes did a misinput which lead to losing a critical
card - implemented a function which asks for confirmation (with a
print out of the cards that will be redealt) before doing the redeal.
2025-02-14 23:42:13 +00:00

105 lines
3.1 KiB
Common Lisp

;;; main.lisp - 2025-02-11
;; Copyright (C) 2025 Aryadev Chavali
;; This program is distributed in the hope that it will be useful, but WITHOUT
;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
;; FOR A PARTICULAR PURPOSE. See the GNU General Public License Version 2 for
;; details.
;; You may distribute and modify this code under the terms of the GNU General
;; Public License Version 2, which you should have received a copy of along with
;; this program. If not, please go to <https://www.gnu.org/licenses/>.
;;; Commentary:
;; Defines the entrypoint of the program, handling any input from the user and
;; passing it into the system.
;;; Code:
(in-package :cantedraw.main)
(fn read-input (&optional (prompt "> ")) (-> (&optional string) string)
(format t "~a" prompt)
(force-output)
(read-line))
(fn parse-integers (input) (-> (string) list)
(->> input
uiop:split-string
(mapcar #'parse-integer*)
(remove-if #'null)))
(fn read-integers () (-> nil list)
(->> "Enter numbers: "
read-input
parse-integers))
(fn read-until-integers () (-> nil list)
(let ((inp (read-integers)))
(while (null inp)
(format t "Need at least one integer...~%")
(force-output)
(setq inp (read-integers)))
inp))
(fn is-valid-hand-index (n) (-> (fixnum) boolean)
(and (< n 5)
(>= n 0)))
(fn read-until-valid-integers () (-> nil list)
(let ((inp (remove-duplicates (read-integers))))
(while (not (and (every #'is-valid-hand-index inp)
(< (length inp) 5)
(>= (length inp) 0)))
(format t "Need at most 5 integers between 0 and 4...~%")
(force-output)
(setq inp (remove-duplicates (read-integers))))
inp))
(fn read-and-confirm-valid-integers (hand) (-> nil list)
(let ((confirm nil)
inp)
(while (null confirm)
(setq inp (read-until-valid-integers))
(if (null inp)
(format t "No redeal (end of game)~%")
(->> (loop :for index :in inp
:collect (nth index hand))
cardset->str
(format t "To redeal: ~a~%")))
(setq confirm (y-or-n-p "Confirm: ")))
inp))
(defun print-hand (hand)
(->> hand cardset->str (format t "Hand=[~a]~%")))
(defun read-redeal-print (hand deck)
(cond
((<= (length deck) 5)
(cons hand deck))
((null hand)
(destructuring-bind ((hand) . deck) (deal-hands 1 deck)
(print-hand hand)
(read-redeal-print hand deck)))
(t
(let ((indices (read-and-confirm-valid-integers hand)))
(if (null indices)
(cons hand deck)
(destructuring-bind (hand . deck) (redeal-hand hand indices deck)
(print-hand hand)
(read-redeal-print hand deck)))))))
(defun start ()
(setf *random-state* (make-random-state t))
(destructuring-bind (final-hand . rest)
(->> (make-deck)
alexandria:shuffle
(read-redeal-print nil))
(format t "Cards remaining: {~a}
Final hand: [~a]"
(cardset->str rest)
(cardset->str final-hand))))