74 lines
2.2 KiB
Common Lisp
74 lines
2.2 KiB
Common Lisp
;;
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;; 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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;;
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;; Made for the text-flavoured LibreJam of 2023-06!
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;; https://jamgaroo.xyz/jams/2
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;; 72x20
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(ql:quickload :cl-tiled)
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(defun main ()
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(clear-screen)
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(draw-map "/home/jaidyn/.local/src/games/flower/res/map.tmx"))
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(defun move-cursor (row column &key (stream *standard-output*))
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"Moves cursor to desired position.
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Borrowed from https://github.com/gorozhin/chlorophyll/
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© 2022 Mikhail Gorozhin — MIT license"
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(format stream "~C[~A;~AH" #\Esc row column))
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(defun clear-screen (&key (stream *standard-output*))
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"Completely clear the terminal screen."
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(move-cursor 0 0 :stream stream)
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(format stream "~C[J" #\Esc))
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(defun draw-map (map-path)
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"Draw a Tiled-format tilemap to the screen."
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(mapcar #'draw-tile-layer
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(cl-tiled:map-layers (cl-tiled:load-map map-path))))
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(defun draw-tile-layer (tile-layer)
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"Draw a Tiled tile-layer to the screen."
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(mapcar #'draw-cell
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(cl-tiled:layer-cells tile-layer)))
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(defun draw-cell (cell)
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"Draw a specific cell of a tile-layer to the screen."
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(move-cursor (+ (cl-tiled:cell-row cell) 1)
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(+ (cl-tiled:cell-column cell) 1))
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(write-char (tile-character
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(cl-tiled:cell-tile cell))))
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(defun 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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(main)
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