gnu: Add MARS.

* gnu/packages/games.scm (mars): New variable.
* gnu/packages/patches/mars-install.patch: New file.
* gnu/packages/patches/mars-sfml-2.3.patch: New file.
* gnu-system.am (dist_patch_DATA): Add them.

4 files changed, 228 insertions, 0 deletions

diff --git a/gnu-system.am b/gnu-system.am
index 64260dd300..c1f69acbd4 100644
--- a/gnu-system.am
+++ b/gnu-system.am
@@ -560,6 +560,8 @@ dist_patch_DATA =						\
   gnu/packages/patches/luit-posix.patch				\
   gnu/packages/patches/m4-gets-undeclared.patch			\
   gnu/packages/patches/make-impure-dirs.patch			\
+  gnu/packages/patches/mars-install.patch			\
+  gnu/packages/patches/mars-sfml-2.3.patch			\
   gnu/packages/patches/maxima-defsystem-mkdir.patch		\
   gnu/packages/patches/mc-fix-ncurses-build.patch		\
   gnu/packages/patches/mcron-install.patch			\
diff --git a/gnu/packages/games.scm b/gnu/packages/games.scm
index 7eb65bb23b..3f1f5a9c94 100644
--- a/gnu/packages/games.scm
+++ b/gnu/packages/games.scm
@@ -10,6 +10,7 @@
 ;;; Copyright © 2015 Andreas Enge <andreas@enge.fr>
 ;;; Copyright © 2015 David Hashe <david.hashe@dhashe.com>
 ;;; Copyright © 2015 Christopher Allan Webber <cwebber@dustycloud.org>
+;;; Copyright © 2015 Ricardo Wurmus <rekado@elephly.net>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -31,11 +32,14 @@
   #:use-module (guix utils)
   #:use-module (guix packages)
   #:use-module (guix download)
+  #:use-module (guix git-download)
   #:use-module (gnu packages)
   #:use-module (gnu packages base)
   #:use-module (gnu packages admin)
   #:use-module (gnu packages audio)
   #:use-module (gnu packages boost)
+  #:use-module (gnu packages fribidi)
+  #:use-module (gnu packages game-development)
   #:use-module (gnu packages gettext)
   #:use-module (gnu packages gl)
   #:use-module (gnu packages glib)
@@ -44,6 +48,7 @@
   #:use-module (gnu packages guile)
   #:use-module (gnu packages libcanberra)
   #:use-module (gnu packages libunwind)
+  #:use-module (gnu packages mp3)
   #:use-module (gnu packages image)
   #:use-module (gnu packages ncurses)
   #:use-module (gnu packages python)
@@ -573,6 +578,59 @@ for common mesh file formats, and collision detection.")
     (home-page "http://irrlicht.sourceforge.net/")
     (license license:zlib)))
 
+(define-public mars
+  ;; The latest release on SourceForge relies on an unreleased version of SFML
+  ;; with a different API, so we take the latest version from the official
+  ;; repository on Github.
+  (let ((commit   "c855d04409")
+        (revision "1"))
+    (package
+      (name "mars")
+      (version (string-append "0.7.5." revision "." commit ))
+      (source (origin
+                (method git-fetch)
+                (uri (git-reference
+                      (url "https://github.com/thelaui/M.A.R.S..git")
+                      (commit commit)))
+                (file-name (string-append name "-" version))
+                (sha256
+                 (base32
+                  "1r4c5gap1z2zsv4yjd34qriqkxaq4lb4rykapyzkkdf4g36lc3nh"))
+                (patches (list (search-patch "mars-sfml-2.3.patch")
+                               (search-patch "mars-install.patch")))))
+      (build-system cmake-build-system)
+      (arguments
+       `(#:tests? #f        ; There are no tests
+         #:phases
+         (modify-phases %standard-phases
+           (add-after 'unpack 'fix-install-path
+            (lambda _
+              (substitute* "src/CMakeLists.txt"
+                (("\\$\\{CMAKE_INSTALL_PREFIX\\}/games")
+                 "${CMAKE_INSTALL_PREFIX}/bin"))
+              #t))
+           (add-after 'unpack 'fix-data-path
+            (lambda* (#:key outputs #:allow-other-keys)
+              (substitute* "src/System/settings.cpp"
+                (("C_dataPath = \"./data/\";")
+                 (string-append "C_dataPath = \""
+                                (assoc-ref outputs "out")
+                                "/share/games/marsshooter/\";")))
+              #t)))))
+      (inputs
+       `(("mesa" ,mesa)
+         ("fribidi" ,fribidi)
+         ("taglib" ,taglib)
+         ("sfml" ,sfml)))
+      (home-page "http://marsshooter.org")
+      (synopsis "2D space shooter")
+      (description
+       "M.A.R.S. is a 2D space shooter with pretty visual effects and
+attractive physics.  Players can battle each other or computer controlled
+enemies in different game modes such as space ball, death match, team death
+match, cannon keep, and grave-itation pit.")
+      (license license:gpl3+))))
+
 (define minetest-data
   (package
     (name "minetest-data")
diff --git a/gnu/packages/patches/mars-install.patch b/gnu/packages/patches/mars-install.patch
new file mode 100644
index 0000000000..1e3964c141
--- /dev/null
+++ b/gnu/packages/patches/mars-install.patch
@@ -0,0 +1,17 @@
+Remove install target for non-existant directory.
+
+--- a/src/CMakeLists.txt	2015-09-13 20:52:28.517344327 +0200
++++ b/src/CMakeLists.txt	2015-09-13 20:53:04.842453987 +0200
+@@ -122,12 +122,6 @@
+ 		DESTINATION
+ 			${CMAKE_INSTALL_PREFIX}/share/applications
+ 	)
+-	install(
+-		FILES
+-			${MARS_SOURCE_DIR}/resources/mars
+-		DESTINATION
+-			${CMAKE_INSTALL_PREFIX}/share/menu
+-	)
+ 
+ else(UNIX)
+ 	# executable
diff --git a/gnu/packages/patches/mars-sfml-2.3.patch b/gnu/packages/patches/mars-sfml-2.3.patch
new file mode 100644
index 0000000000..01ec05ff36
--- /dev/null
+++ b/gnu/packages/patches/mars-sfml-2.3.patch
@@ -0,0 +1,151 @@
+This is a concatenation of the following two patches:
+
+  https://github.com/jcowgill/M.A.R.S./commit/33d5affabf8ff84f2c028b9303c6a9e83cc824ad.patch
+  https://patch-diff.githubusercontent.com/raw/thelaui/M.A.R.S./pull/2.patch
+
+Their purpose is to allow Mars to be built against the latest version of SFML.
+
+From 33d5affabf8ff84f2c028b9303c6a9e83cc824ad Mon Sep 17 00:00:00 2001
+From: James Cowgill <james410@cowgill.org.uk>
+Date: Sat, 9 May 2015 01:54:14 +0100
+Subject: [PATCH] Remove dependency on GLU - fixes build with SFML 2.3
+
+---
+ premake4.lua           |  8 ++++----
+ src/Shaders/postFX.cpp |  2 +-
+ src/System/window.cpp  | 12 ++++++------
+ 3 files changed, 11 insertions(+), 11 deletions(-)
+
+diff --git a/premake4.lua b/premake4.lua
+index 023dddd..5af4495 100755
+--- a/premake4.lua
++++ b/premake4.lua
+@@ -11,11 +11,11 @@ project "mars"
+     defines { "NDEBUG" }

+     flags   { "Optimize" }

+     if os.get() == "windows" then

+-      links { "sfml-graphics", "sfml-audio", "sfml-system", "sfml-window", "glu32", "opengl32", "fribidi-0", "tag" }

++      links { "sfml-graphics", "sfml-audio", "sfml-system", "sfml-window", "opengl32", "fribidi-0", "tag" }

+     elseif os.get() == "macosx" then

+       links { "sfml-graphics.framework", "sfml-audio.framework", "sfml-system.framework", "sfml-window.framework", "opengl.framework", "fribidi", "tag" }

+     else

+-      links { "GLU", "sfml-graphics", "sfml-audio", "sfml-system", "sfml-window", "fribidi", "tag" }

++      links { "sfml-graphics", "sfml-audio", "sfml-system", "sfml-window", "fribidi", "tag" }

+       libdirs { "/usr/lib", "/usr/local/lib" }

+     end

+     

+@@ -23,10 +23,10 @@ project "mars"
+     defines { "_DEBUG", "DEBUG" }

+     flags   { "Symbols" }

+     if os.get() == "windows" then

+-      links { "sfml-graphics", "sfml-audio", "sfml-system", "sfml-window", "glu32", "opengl32", "fribidi-0", "tag" }

++      links { "sfml-graphics", "sfml-audio", "sfml-system", "sfml-window", "opengl32", "fribidi-0", "tag" }

+     elseif os.get() == "macosx" then

+       links { "sfml-graphics.framework", "sfml-audio.framework", "sfml-system.framework", "sfml-window.framework", "opengl.framework", "fribidi", "tag" }

+     else

+-      links { "GLU", "sfml-graphics", "sfml-audio", "sfml-system", "sfml-window", "fribidi", "tag" }

++      links { "sfml-graphics", "sfml-audio", "sfml-system", "sfml-window", "fribidi", "tag" }

+       libdirs { "/usr/lib", "/usr/local/lib" }

+     end

+diff --git a/src/Shaders/postFX.cpp b/src/Shaders/postFX.cpp
+index 987f411..f767a47 100644
+--- a/src/Shaders/postFX.cpp
++++ b/src/Shaders/postFX.cpp
+@@ -78,7 +78,7 @@ namespace postFX {
+             postFX_.loadFromFile(settings::C_dataPath + "shaders/bump.frag", sf::Shader::Fragment);
+             bumpMap_.create(SPACE_X_RESOLUTION*0.5f, SPACE_Y_RESOLUTION*0.5f);
+             glViewport(0,0,SPACE_X_RESOLUTION*0.5f,SPACE_Y_RESOLUTION*0.5f);
+-            gluOrtho2D(0, SPACE_X_RESOLUTION, SPACE_Y_RESOLUTION, 0);
++            glOrtho(0, SPACE_X_RESOLUTION, SPACE_Y_RESOLUTION, 0, -1, 1);
+             glEnable(GL_BLEND);
+             glMatrixMode(GL_MODELVIEW);
+             postFX_.setParameter("BumpMap", bumpMap_.getTexture());
+diff --git a/src/System/window.cpp b/src/System/window.cpp
+index e9a099a..8e12dcc 100644
+--- a/src/System/window.cpp
++++ b/src/System/window.cpp
+@@ -222,7 +222,7 @@ namespace window {
+         glLoadIdentity();
+ 
+         // Setup translation (according to left-upper corner)
+-        gluOrtho2D(0.f, SPACE_X_RESOLUTION, SPACE_Y_RESOLUTION, 0.f);
++        glOrtho(0.f, SPACE_X_RESOLUTION, SPACE_Y_RESOLUTION, 0.f, -1, 1);
+ 
+         // probably improves performance...
+         glDisable(GL_LIGHTING);
+@@ -247,7 +247,7 @@ namespace window {
+ 
+         glMatrixMode(GL_PROJECTION);
+         glLoadIdentity();
+-        gluOrtho2D(0.f, viewPort_.x_, viewPort_.y_, 0.f);
++        glOrtho(0.f, viewPort_.x_, viewPort_.y_, 0.f, -1, 1);
+         glMatrixMode(GL_MODELVIEW);
+         glLoadIdentity();
+ 
+@@ -255,7 +255,7 @@ namespace window {
+ 
+         glMatrixMode(GL_PROJECTION);
+         glLoadIdentity();
+-        gluOrtho2D(0.f, SPACE_X_RESOLUTION, SPACE_Y_RESOLUTION, 0.f);
++        glOrtho(0.f, SPACE_X_RESOLUTION, SPACE_Y_RESOLUTION, 0.f, -1, 1);
+         glMatrixMode(GL_MODELVIEW);
+         glLoadIdentity();
+     }
+@@ -270,7 +270,7 @@ namespace window {
+             glLoadIdentity();
+             setViewPort();
+ 
+-            gluOrtho2D(0.f, viewPort_.x_, viewPort_.y_, 0.f);
++            glOrtho(0.f, viewPort_.x_, viewPort_.y_, 0.f, -1, 1);
+ 
+             glMatrixMode(GL_MODELVIEW);
+             glLoadIdentity();
+@@ -284,7 +284,7 @@ namespace window {
+             glLoadIdentity();
+             setViewPort();
+ 
+-            gluOrtho2D(0.f, viewPort_.x_, viewPort_.y_, 0.f);
++            glOrtho(0.f, viewPort_.x_, viewPort_.y_, 0.f, -1, 1);
+ 
+             glMatrixMode(GL_MODELVIEW);
+             glLoadIdentity();
+@@ -294,7 +294,7 @@ namespace window {
+         else {
+             glMatrixMode(GL_PROJECTION);
+             glLoadIdentity();
+-            gluOrtho2D(0.f, viewPort_.x_, viewPort_.y_, 0.f);
++            glOrtho(0.f, viewPort_.x_, viewPort_.y_, 0.f, -1, 1);
+             glMatrixMode(GL_MODELVIEW);
+             glLoadIdentity();
+         }
+
+From a97d0d6a19b5b43e3c53081e36f1f1747b6674e6 Mon Sep 17 00:00:00 2001
+From: Sylvain BOILARD <boilard@crans.org>
+Date: Wed, 23 Jan 2013 02:02:47 +0100
+Subject: [PATCH] Use sf::Shader::Bind() correctly after latest update of the
+ SFML's API.
+
+---
+ src/System/window.cpp | 6 ++----
+ 1 file changed, 2 insertions(+), 4 deletions(-)
+
+diff --git a/src/System/window.cpp b/src/System/window.cpp
+index e9a099a..3ffcf65 100644
+--- a/src/System/window.cpp
++++ b/src/System/window.cpp
+@@ -307,13 +307,11 @@ namespace window {
+         window_.setActive(true);
+         glEnable(GL_TEXTURE_2D);
+ 
+-        if (shader)
+-            shader->bind();
++        sf::Shader::bind(shader);
+ 
+         window_.draw(toBeDrawn, states);
+ 
+-        if (shader)
+-            shader->unbind();
++        sf::Shader::bind(NULL);
+ 
+         window_.popGLStates();
+         glPopMatrix();