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;;; model.lisp - 2025-02-14
;; 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:
;; Model of cards and sets of cards in Lisp.
;;; Code:
(in-package :cantedraw.model)
(deftype rank ()
`(or (member :Jack :Queen :King :Ace)
(integer 2 10)))
(deftype suit ()
`(member :Diamonds :Clubs :Hearts :Spades :Joker))
(defstruct card
(rank :Ace :type rank)
(suit :Joker :type suit))
(deftype int-card () `(integer 0 51))
(deftype cardset () `(and list (satisfies cardset-p)))
(fn cardset-p (lst) (-> (list) boolean)
(every #'card-p lst))
(fn int->suit (n) (-> (fixnum) suit)
(case (floor n 13)
(0 :Diamonds)
(1 :Clubs)
(2 :Hearts)
(3 :Spades)
(t :Joker)))
(fn suit->int (item) (-> (suit) (integer 0 52))
(case item
(:Diamonds 0)
(:Clubs 13)
(:Hearts 26)
(:Spades 39)
(t 52)))
(fn int->rank (n) (-> (fixnum) rank)
(let ((n (mod n 13)))
(case n
(9 :Jack)
(10 :Queen)
(11 :King)
(12 :Ace)
(t (+ n 2)))))
(fn rank->int (rank) (-> (rank) (integer 0 12))
(case rank
(:Jack 9)
(:Queen 10)
(:King 11)
(:Ace 12)
(t (- rank 2))))
(fn int->card (num) (-> (fixnum) card)
(make-card :rank (int->rank num)
:suit (int->suit num)))
(fn card->int (card) (-> (card) fixnum)
(with-slots ((rank rank) (suit suit)) card
(let ((rank (rank->int rank))
(suit (suit->int suit)))
(+ rank suit))))
(fn suit< (s1 s2) (-> (suit suit) boolean)
(< (suit->int s1) (suit->int s2)))
(fn rank< (r1 r2) (-> (rank rank) boolean)
(< (rank->int r1) (rank->int r2)))
(fn card< (c1 c2) (-> (card card) boolean)
(with-slots ((r1 rank) (s1 suit)) c1
(with-slots ((r2 rank) (s2 suit)) c2
(cond
;; Check for jokers!
((and (eq s1 :Joker)
(eq s2 :Joker))
(rank< r1 r2))
((eq s1 :Joker) nil)
((eq s2 :Joker) t)
((eq r1 r2) (suit< s1 s2))
(t (rank< r1 r2))))))
(fn suit->str (suit) (-> (suit) string)
(case suit
(:Diamonds "◆")
(:Clubs "♣")
(:Hearts "♥")
(:Spades "♠")
(t "Joker")))
(fn rank->str (rank) (-> (rank) string)
(case rank
(:Ace "Ace")
(:Jack "Jack")
(:Queen "Queen")
(:King "King")
(t (format nil "~a" rank))))
(defmethod print-object ((card card) s)
(with-slots ((rank rank) (suit suit)) card
(if (eq suit :Joker)
(format s "Joker")
(format s "~a[~a]"
(rank->str rank)
(suit->str suit)))))
(fn cardset->str (cardset) (-> (cardset) string)
(format nil "~{~a~^, ~}" cardset))
(fn make-deck (&optional (n 1)) (-> (&optional fixnum) cardset)
(append
(loop :for _ :from 1 :to n
:nconc (loop :for j :from 1 :to 52
collect (int->card (1- j))))
(loop :for _ :from 1 :to (* 2 n)
:collect (make-card))))
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