nongnu: Add fallout2-ce.

* nongnu/packages/game-development.scm (fallout2-ce): New variable.

nongnu/packages/game-development.scm

@@ -20,6 +20,7 @@
   #:use-module ((guix licenses) :prefix license:)
   #:use-module (gnu packages audio)
   #:use-module (gnu packages base)
+  #:use-module (gnu packages compression)
   #:use-module (gnu packages gcc)
   #:use-module (gnu packages gl)
   #:use-module (gnu packages gtk)
@@ -272,6 +273,43 @@ improvements, that works (mostly) hassle-free on multiple platforms.")
      (license:nonfree
       "https://raw.githubusercontent.com/alexbatalov/fallout1-ce/main/LICENSE.md"))))
 
+(define-public fallout2-ce
+  (package
+    (name "fallout2-ce")
+    (version "1.3.0")
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://github.com/alexbatalov/fallout2-ce")
+             (commit (string-append "v" version))))
+       (patches (nongnu-patches "fallout2-ce-unbundle-fpattern.patch"))
+       (sha256
+        (base32 "15b30i2ixq0w01qxrymd1qs1awj8kijbqzac8wvfrpm85fdnfnmg"))))
+    (build-system cmake-build-system)
+    (arguments
+     (list
+      #:tests? #f
+      #:phases #~(modify-phases %standard-phases
+                   (replace 'install
+                     (lambda* (#:key outputs #:allow-other-keys)
+                       (let* ((out (assoc-ref outputs "out"))
+                              (bin (string-append out "/bin")))
+                         (mkdir-p bin)
+                         (copy-file "fallout2-ce"
+                                    (string-append bin "/fallout2-ce"))))))))
+    (inputs (list sdl2 fpattern zlib))
+    (home-page "https://github.com/alexbatalov/fallout2-ce")
+    (synopsis
+     "Fallout 2 Community Edition is an engine rewrite for modern OS")
+    (description
+     "Fallout 2 Community Edition is a fully working re-implementation of
+Fallout 2, with the same original gameplay, engine bugfixes, and some quality of
+life improvements, that works (mostly) hassle-free on multiple platforms.")
+    (license
+     (license:nonfree
+      "https://raw.githubusercontent.com/alexbatalov/fallout2-ce/main/LICENSE.md"))))
+
 (define-public fpattern
   (package
     (name "fpattern")

nongnu/packages/patches/fallout2-ce-unbundle-fpattern.patch

@@ -0,0 +1,17 @@
+Originally fallout2-ce has the fpattern library bundled in the repo.
+This patch unbundles it.
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 2de2af1..f6c6ace 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -360,7 +360,8 @@ if(APPLE)
+     set(MACOSX_BUNDLE_BUNDLE_VERSION "1.3.0")
+ endif()
+ 
+-add_subdirectory("third_party/fpattern")
++find_library(FPATTERN_LIBRARY libfpattern.so)
++find_path(FPATTERN_INCLUDE_DIR fpattern.h)
+ target_link_libraries(${EXECUTABLE_NAME} ${FPATTERN_LIBRARY})
+ target_include_directories(${EXECUTABLE_NAME} PRIVATE ${FPATTERN_INCLUDE_DIR})
+