diff options
author | David Thompson <dthompson2@worcester.edu> | 2014-06-28 18:46:16 -0400 |
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committer | David Thompson <dthompson2@worcester.edu> | 2014-06-28 18:46:16 -0400 |
commit | f47eb69a354188154731846dde8b384c2c2f39f6 (patch) | |
tree | 6aa1ccb9212836b7c941e771475eb995fa6df9f9 /2d/tileset.scm | |
parent | df0f2a5f3f09394f1953abbc7e33e9a98204680e (diff) |
Rename guile-2d to Sly!
Massive find/replace job.
Diffstat (limited to '2d/tileset.scm')
-rw-r--r-- | 2d/tileset.scm | 89 |
1 files changed, 0 insertions, 89 deletions
diff --git a/2d/tileset.scm b/2d/tileset.scm deleted file mode 100644 index 669372b..0000000 --- a/2d/tileset.scm +++ /dev/null @@ -1,89 +0,0 @@ -;;; guile-2d -;;; Copyright (C) 2013, 2014 David Thompson <dthompson2@worcester.edu> -;;; -;;; 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 -;;; <http://www.gnu.org/licenses/>. - -;;; Commentary: -;; -;; Tilesets encapsulate a group of uniformly sized texture regions -;; that come from a single texture. -;; -;;; Code: - -(define-module (2d tileset) - #:use-module (srfi srfi-9) - #:use-module (srfi srfi-42) - #:use-module (2d texture) - #:export (<tileset> - make-tileset - load-tileset - tileset? - tileset-tiles - tileset-width - tileset-height - tileset-margin - tileset-spacing - tileset-ref)) - -(define-record-type <tileset> - (%make-tileset tiles width height margin spacing) - tileset? - (tiles tileset-tiles) - (width tileset-width) - (height tileset-height) - (margin tileset-margin) - (spacing tileset-spacing)) - -(define (split-texture texture width height margin spacing) - "Split TEXTURE into a vector of texture regions of WIDTH x HEIGHT -size. SPACING refers to the number of pixels separating each -tile. MARGIN refers to the number of pixels on the top and left of -TEXTURE before the first tile begins." - (define (build-tile tx ty) - (let* ((x (+ (* tx (+ width spacing)) margin)) - (y (+ (* ty (+ height spacing)) margin))) - (make-texture-region texture x y width height))) - - (let* ((tw (texture-width texture)) - (th (texture-height texture)) - (rows (/ (- tw margin) (+ width spacing))) - (columns (/ (- tw margin) (+ height spacing)))) - (vector-ec (: y rows) (: x columns) (build-tile x y)))) - -(define* (make-tileset texture width height - #:optional #:key (margin 0) (spacing 0)) - "Return a new tileset that is built by splitting TEXTURE into -tiles." - (let ((tiles (split-texture texture - width - height - margin - spacing))) - (%make-tileset tiles width height margin spacing))) - -(define* (load-tileset filename width height - #:optional #:key (margin 0) (spacing 0)) - "Return a new tileset that is built by loading the texture at -FILENAME and splitting the texture into tiles." - (let* ((tiles (split-texture (load-texture filename) - width - height - margin - spacing))) - (%make-tileset tiles width height margin spacing))) - -(define (tileset-ref tileset i) - "Return the tile texture of TILESET at index I." - (vector-ref (tileset-tiles tileset) i)) |