92 lines
3.9 KiB
Common Lisp
92 lines
3.9 KiB
Common Lisp
;;;; Copyright © 2023, Jaidyn Ann <jadedctrl@posteo.at>
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;;;;
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;;;; This program is free software: you can redistribute it and/or
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;;;; modify it under the terms of the GNU General Public License as
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;;;; published by the Free Software Foundation, either version 3 of
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;;;; the License, or (at your option) any later version.
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;;;;
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;;;; This program is distributed in the hope that it will be useful,
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;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;;; GNU General Public License for more details.
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;;;;
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;;;; You should have received a copy of the GNU General Public License
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;;;; along with this program. If not, see <https://www.gnu.org/licenses/>.
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;;;; FLORA-SEARCH-AURORA.INVENTORY
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;;;; The menu for inventory selection/management.
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(in-package :flora-search-aurora.inventory)
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;;; ———————————————————————————————————
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;;; Menu-creation! How fun!
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;;; ———————————————————————————————————
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(defun subseq-head (length sequence)
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"Get a subsequence of SEQUENCE containing its first LENGTH elements. If LENGTH
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exceeds the size of SEQUENCE, the returned subsequence is equivalent to SEQUENCE."
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(subseq sequence 0 (…:at-most (length sequence) length)))
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(defun items->menu-plist (item-plists &key (row-width 72))
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"Convert a list of items’ plists (that one might get from OVERWORLD’s map
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:ITEMS) into a pretty and presentable menu-grid of items, for use with
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📋:MENU-STATE(-*)."
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(format *error-output* "ITEMS ~A~%" item-plists)
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(let* ((label-width 7)
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(border-width 2)
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;; Weird bounding, whoops! I’m so clumsy, it’s endearing instead of just annoying! … Right? =w=”
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(column (- 0 label-width border-width))
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(row 0))
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(mapcar (lambda (item)
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(incf column (+ label-width border-width))
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(when (>= column row-width)
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(incf row)
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(setf column 0))
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(list :en (subseq-head label-width (or (getf (cdr item) :name-en) (getf (cdr item) :id)))
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:eo (subseq-head label-width (getf (cdr item) :name-eo))
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:selected (and (eq row 0) (eq column 0))
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:selection (if (and (eq row 0) (eq column 0)) 100 0)
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:return nil
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:row row))
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item-plists)))
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;;; ———————————————————————————————————
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;;; Inventory loop logic
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;;; ———————————————————————————————————
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(defun inventory-state-update (map inventory-menu)
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(if (📋:menu-state-update inventory-menu)
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(list :map map :inventory inventory-menu)
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(values nil
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(list :map map))))
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;;; ———————————————————————————————————
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;;; Inventory loop drawing
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;;; ———————————————————————————————————
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(defun inventory-state-draw (matrix items)
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(📋:menu-state-draw matrix items))
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;;; ———————————————————————————————————
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;;; Inventory loop
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;;; ———————————————————————————————————
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(defun inventory-state (matrix &key map inventory)
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"A state-function for use with STATE-LOOP."
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(sleep .02)
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(inventory-state-draw matrix inventory)
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(inventory-state-update map inventory))
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(defun make-inventory-state (map)
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"Return a state-function for inventory-listing, for use with STATE-LOOP."
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(lambda (matrix &key (map map) (inventory (items->menu-plist (gethash :items map))))
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(apply #'🎒:inventory-state
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(list matrix :map map :inventory inventory))))
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