93 lines
3.3 KiB
Common Lisp
93 lines
3.3 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.OVERWORLD
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;;;; All game-functions and data relating to the “overworld” (that is,
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;;;; the primary gameplay, the RPG-ish-ish bits).
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(defpackage :flora-search-aurora.overworld
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(:use :cl
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:flora-search-aurora.input :flora-search-aurora.display
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:flora-search-aurora.ui)
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(:export #:overworld-state))
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(in-package :flora-search-aurora.overworld)
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;;; ———————————————————————————————————
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;;; Overworld loop
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;;; ———————————————————————————————————
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(defun overworld-state (matrix map)
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"Render the given map to the matrix and take user-input — for one frame.
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A state-function for use with #'state-loop."
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(let ((map (if (or (stringp map) (pathnamep map))
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(cl-tiled:load-map map)
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map)))
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(sleep .02)
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(overworld-state-draw matrix map)
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(overworld-state-update map)))
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(defun overworld-state-draw (matrix map)
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"Draw the overworld map to the given matrix.
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A core part of #'overworld-state."
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(matrix-write-tiled-map matrix map))
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(defun overworld-state-update (map)
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"Do nothing, lol.
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Core part of #'overworld-state."
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't)
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;;; ———————————————————————————————————
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;;; Mapping & map-rendering
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;;; ———————————————————————————————————
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(defun matrix-write-tiled-cell (matrix cell)
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"Set a matrice's (2d array's) element corresponding to
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a Tiled cell's character-value, using it's column and row."
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(setf (aref matrix
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(cl-tiled:cell-row cell)
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(cl-tiled:cell-column cell))
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(tiled-tile-character
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(cl-tiled:cell-tile cell))))
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(defun matrix-write-tiled-map (matrix map)
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"Draw a Tiled-format tilemap to the 2D array."
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(mapcar (lambda (layer) (matrix-write-tiled-map-layer matrix layer))
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(cl-tiled:map-layers map))
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matrix)
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(defun matrix-write-tiled-map-layer (matrix tile-layer)
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"Set an array's elements to those corresponding the given Tiled
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tile-layer's cells. a Tiled tile-layer to the screen."
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(mapcar (lambda (cell) (matrix-write-tiled-cell matrix cell))
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(cl-tiled:layer-cells tile-layer))
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matrix)
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(defun tiled-tile-character (tile)
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"Given a tileset's tile, return it's corresponding text character,
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assuming that the tileset is a bitmap font starting with char-code 32
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with 15 characters-per-line."
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(code-char
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(+ (* (cl-tiled:tile-row tile) 15)
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(cl-tiled:tile-column tile)
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32)))
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