91 lines
3.4 KiB
Common Lisp
91 lines
3.4 KiB
Common Lisp
;;;; Copyright © 2023, Jaidyn Ann <jadedctrl@posteo.at>
|
||
;;;;
|
||
;;;; This program is free software: you can redistribute it and/or
|
||
;;;; modify it under the terms of the GNU General Public License as
|
||
;;;; published by the Free Software Foundation, either version 3 of
|
||
;;;; the License, or (at your option) any later version.
|
||
;;;;
|
||
;;;; 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 for more details.
|
||
;;;;
|
||
;;;; You should have received a copy of the GNU General Public License
|
||
;;;; along with this program. If not, see <https://www.gnu.org/licenses/>.
|
||
|
||
;;;; FLORA-SEARCH-AURORA.OVERWORLD
|
||
;;;; All game-functions and data relating to the “overworld” (that is,
|
||
;;;; the primary gameplay, the RPG-ish-ish bits).
|
||
|
||
(defpackage :flora-search-aurora.overworld
|
||
(:use :cl
|
||
:flora-search-aurora.input :flora-search-aurora.display
|
||
:flora-search-aurora.ui)
|
||
(:export #:overworld-state))
|
||
|
||
(in-package :flora-search-aurora.overworld)
|
||
|
||
|
||
|
||
;;; ———————————————————————————————————
|
||
;;; Overworld loop
|
||
;;; ———————————————————————————————————
|
||
(defun overworld-state (matrix &key (map-path nil) (map nil) (entity-data nil))
|
||
"Render the given map to the matrix and take user-input — for one frame.
|
||
A state-function for use with #'state-loop."
|
||
(sleep .02)
|
||
(let ((map (if (not map) (cl-tiled:load-map map-path) map)))
|
||
(overworld-state-draw matrix map entity-data)
|
||
(overworld-state-update map entity-data)))
|
||
|
||
|
||
(defun overworld-state-draw (matrix map entity-data)
|
||
"Draw the overworld map to the given matrix.
|
||
A core part of #'overworld-state."
|
||
(matrix-write-tiled-map matrix map))
|
||
|
||
|
||
(defun overworld-state-update (map entity-data)
|
||
"Do nothing, lol. Core part of #'overworld-state.
|
||
Returns parameters to be used in the next invocation of #'overworld-state."
|
||
(list :map map :entity-data entity-data))
|
||
|
||
|
||
|
||
;;; ———————————————————————————————————
|
||
;;; Mapping & map-rendering
|
||
;;; ———————————————————————————————————
|
||
(defun matrix-write-tiled-cell (matrix cell)
|
||
"Set a matrice's (2d array's) element corresponding to
|
||
a Tiled cell's character-value, using it's column and row."
|
||
(setf (aref matrix
|
||
(cl-tiled:cell-row cell)
|
||
(cl-tiled:cell-column cell))
|
||
(tiled-tile-character
|
||
(cl-tiled:cell-tile cell))))
|
||
|
||
|
||
(defun matrix-write-tiled-map (matrix map)
|
||
"Draw a Tiled-format tilemap to the 2D array."
|
||
(mapcar (lambda (layer) (matrix-write-tiled-map-layer matrix layer))
|
||
(cl-tiled:map-layers map))
|
||
matrix)
|
||
|
||
|
||
(defun matrix-write-tiled-map-layer (matrix tile-layer)
|
||
"Set an array's elements to those corresponding the given Tiled
|
||
tile-layer's cells. a Tiled tile-layer to the screen."
|
||
(mapcar (lambda (cell) (matrix-write-tiled-cell matrix cell))
|
||
(cl-tiled:layer-cells tile-layer))
|
||
matrix)
|
||
|
||
|
||
(defun tiled-tile-character (tile)
|
||
"Given a tileset's tile, return it's corresponding text character,
|
||
assuming that the tileset is a bitmap font starting with char-code 32
|
||
with 15 characters-per-line."
|
||
(code-char
|
||
(+ (* (cl-tiled:tile-row tile) 15)
|
||
(cl-tiled:tile-column tile)
|
||
32)))
|