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.
48 lines
1.2 KiB
Common Lisp
48 lines
1.2 KiB
Common Lisp
;;; packages.lisp - 2025-02-09
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;; Copyright (C) 2025 Aryadev Chavali
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;; This program is distributed in the hope that it will be useful, but WITHOUT
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;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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;; FOR A PARTICULAR PURPOSE. See the GNU General Public License Version 2 for
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;; details.
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;; You may distribute and modify this code under the terms of the GNU General
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;; Public License Version 2, which you should have received a copy of along with
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;; this program. If not, please go to <https://www.gnu.org/licenses/>.
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;;; Commentary:
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;; Define the packages (namespaces) involved in this project.
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;;; Code:
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(defpackage cantedraw.lib.macros
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(:use :cl)
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(:export
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:--> :->>
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:-> :fn
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:while :alist-val
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:$))
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(defpackage cantedraw.lib.functions
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(:use :cl :cantedraw.lib.macros)
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(:export
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:parse-integer*
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:range :take :split
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:rev-map))
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(defpackage cantedraw.model
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(:use :cl :cantedraw.lib.macros :cantedraw.lib.functions)
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(:export
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;; Types
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:int-card :rank :suit :card :cardset
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;; Converters
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:int->suit :int->rank :int->card
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:suit->int :rank->int :card->int
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))
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(defpackage cantedraw.main
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(:use :cl :cantedraw.lib.macros :cantedraw.lib.functions)
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(:export :start))
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