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;;; Copyright (C) 2025 Gene Pasquet
;;;
;;; 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/>.
(import pygame)
(defclass TileSet []
(defn __init__ [self image-file scaling tile-w tile-h [padding 0]]
(setv self.tile-w tile-w)
(setv self.tile-h tile-h)
(setv self.scaling scaling)
(setv self.sheet
(let [surf (pygame.image.load image-file)
map-width (* (.get_width surf) self.scaling)
map-height (* (.get_height surf) self.scaling)]
(if (!= self.scaling 1)
(pygame.transform.scale surf #(map-width map-height))
surf)))
(setv self.tiles
(lfor y (range 0 (.get_height self.sheet) (+ tile-h (* padding self.scaling)))
x (range 0 (.get_width self.sheet) (+ tile-w (* padding self.scaling)))
(let [tile (pygame.Surface #(tile-w tile-h))]
(.blit tile self.sheet #(0 0) #(x y tile-w tile-h))
tile)))))
(defclass MiniSprite [pygame.sprite.Sprite]
(defn __init__ [self tile tile-size x y [goal False]]
(.__init__ (super))
(setv self.surf (pygame.Surface #(tile-size tile-size)))
(.blit self.surf tile #(0 0))
(setv self.rect (.get_rect self.surf
:left (* x tile-size)
:top (* y tile-size)))
(setv self.goal goal)))
(defn draw-tile [target tileset tile-id #* args #** kwargs]
(let [tile (get tileset.tiles tile-id)
sprite (MiniSprite tile tileset.tile-w #* args #** kwargs)]
(.blit target sprite.surf sprite.rect)
sprite))
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