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cantedraw/packages.lisp
Aryadev Chavali 76a7017246 Implement some simple converters for custom types to/from integers
Given n in 0..51, certainly there exists r, s s.t.  `n = 13s + r`
where r in 0..12 and s in 0..3.  `r` is the rank, and `s` is the suit.

ranks are ordered Ace, 2, 3, ..., Queen, King and suits are ordered
Diamond, Club, Heart, Spade.

Therefore there is a 1-1 correspondence between 0..51 and any card in
the deck.

Jokers are a bit less straightforward; for now I'll define them as an
outlier which doesn't exist in the same bounds (which is why they're
the default return for suit in int->suit).  Likely I'll go for -1
representing a Joker.
2025-02-14 17:17:43 +00:00

48 lines
1.2 KiB
Common Lisp

;;; packages.lisp - 2025-02-09
;; 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:
;; Define the packages (namespaces) involved in this project.
;;; Code:
(defpackage cantedraw.lib.macros
(:use :cl)
(:export
:--> :->>
:-> :fn
:while :alist-val
:$))
(defpackage cantedraw.lib.functions
(:use :cl :cantedraw.lib.macros)
(:export
:parse-integer*
:range :take :split
:rev-map))
(defpackage cantedraw.model
(:use :cl :cantedraw.lib.macros :cantedraw.lib.functions)
(:export
;; Types
:int-card :rank :suit :card :cardset
;; Converters
:int->suit :int->rank :int->card
:suit->int :rank->int :card->int
))
(defpackage cantedraw.main
(:use :cl :cantedraw.lib.macros :cantedraw.lib.functions)
(:export :start))