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;;; Chickadee Game Toolkit
;;; Copyright © 2016 David Thompson <davet@gnu.org>
;;;
;;; Chickadee 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.
;;;
;;; Chickadee 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:
;;
;; Development environment for GNU Guix.
;;
;; To setup the development environment, run the following:
;;
;;    guix environment -l guix.scm
;;    ./bootstrap && ./configure;
;;
;; To build the development snapshot, run:
;;
;;    guix build -f guix.scm
;;
;; To install the development snapshot, run:
;;
;;    guix install -f guix.scm
;;
;;; Code:

(use-modules (ice-9 match)
             (srfi srfi-1)
             (guix packages)
             ((guix licenses) #:prefix license:)
             (guix download)
             (guix gexp)
             (guix git-download)
             (guix build-system gnu)
             (guix utils)
             (gnu packages)
             (gnu packages audio)
             (gnu packages autotools)
             (gnu packages fontutils)
             (gnu packages image)
             (gnu packages pkg-config)
             (gnu packages readline)
             (gnu packages texinfo)
             (gnu packages guile)
             (gnu packages gl)
             (gnu packages sdl)
             (gnu packages maths)
             (gnu packages mp3)
             (gnu packages image)
             (gnu packages xiph))

(define target-guile guile-3.0-latest)

(define guile3.0-opengl
  (package
    (inherit guile-opengl)
    (inputs
     (modify-inputs (package-inputs guile-opengl)
       (replace "guile" target-guile)))
    (native-inputs
     (modify-inputs (package-native-inputs guile-opengl)
       (append autoconf automake)))
    (arguments
     (substitute-keyword-arguments (package-arguments guile-opengl)
       ((#:phases phases)
        `(modify-phases ,phases
           (delete 'patch-makefile)
           (add-before 'bootstrap 'patch-configure.ac
             (lambda _
               ;; The Guile version check doesn't work for the 3.0
               ;; pre-release, so just remove it.
               (substitute* "configure.ac"
                 (("GUILE_PKG\\(\\[2.2 2.0\\]\\)") ""))
               (substitute* "Makefile.am"
                 (("\\$\\(GUILE_EFFECTIVE_VERSION\\)") "3.0")
                 (("ccache") "site-ccache"))
               #t))
           (replace 'bootstrap
             (lambda _
               (invoke "autoreconf" "-vfi")))))))))

(define guile-sdl2
  (let ((commit "d31c27ac48f81a534b28531e3d5fa626890be59f"))
    (package
      (name "guile-sdl2")
      (version (string-append "0.5.0-1." (string-take commit 7)))
      (source (origin
                (method git-fetch)
                (uri (git-reference
                      (url "https://git.dthompson.us/guile-sdl2.git")
                      (commit commit)))
                (sha256
                 (base32
                  "16cgmsd9q6mr99s2bngcylcqbpq1gq5fp79m85r7ywny3cv0ivj1"))))
      (build-system gnu-build-system)
      (arguments
       '(#:make-flags '("GUILE_AUTO_COMPILE=0")
         #:phases
         (modify-phases %standard-phases
           (add-after 'unpack 'bootstrap
                      (lambda _
                        (zero? (system* "sh" "bootstrap")))))))
      (native-inputs
       (list autoconf automake pkg-config texinfo))
      (inputs
       (list target-guile sdl2 sdl2-image))
      (synopsis "Guile bindings for SDL2")
      (description "Guile-sdl2 provides pure Guile Scheme bindings to the
SDL2 C shared library via the foreign function interface.")
      (home-page "https://git.dthompson.us/guile-sdl2.git")
      (license license:lgpl3+))))

(define %source-dir (dirname (current-filename)))

(package
  (name "chickadee")
  (version "0.8.0")
  (source (local-file %source-dir
                      #:recursive? #t
                      #:select? (git-predicate %source-dir)))
  (build-system gnu-build-system)
  (arguments
   '(#:make-flags '("GUILE_AUTO_COMPILE=0")
     #:phases
     (modify-phases %standard-phases
       (add-after 'unpack 'bootstrap
         (lambda _
           (invoke "sh" "bootstrap"))))))
  (native-inputs
   (list autoconf automake pkg-config texinfo))
  (inputs
   (list freetype
         target-guile
         libjpeg-turbo
         libpng
         libvorbis
         mpg123
         openal
         readline))
  (propagated-inputs
   (list guile3.0-opengl guile-sdl2))
  (synopsis "Game development toolkit for Guile Scheme")
  (description "Chickadee is a game development toolkit for Guile
Scheme.  It contains all of the basic components needed to develop
2D/3D video games.")
  (home-page "https://dthompson.us/projects/chickadee.html")
  (license license:gpl3+))