gnu: Add chroma.

* gnu/packages/games.scm (chroma): New variable.

gnu/packages/games.scm

@@ -10,7 +10,7 @@
 ;;; Copyright © 2014, 2015 Mark H Weaver <mhw@netris.org>
 ;;; Copyright © 2015, 2016 Andreas Enge <andreas@enge.fr>
 ;;; Copyright © 2015 David Hashe <david.hashe@dhashe.com>
-;;; Copyright © 2015, 2017 Christopher Allan Webber <cwebber@dustycloud.org>
+;;; Copyright © 2015, 2017, 2018 Christopher Lemmer Webber <cwebber@dustycloud.org>
 ;;; Copyright © 2015, 2016, 2017, 2018 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2015, 2016, 2017 Alex Kost <alezost@gmail.com>
 ;;; Copyright © 2015 Paul van der Walt <paul@denknerd.org>
@@ -4107,6 +4107,38 @@ laws of physics (Enigma’s special laws of physics, that is), controlling them
 with the mouse isn’t always trivial.")
     (license license:gpl2+)))
 
+(define-public chroma
+  (package
+    (name "chroma")
+    (version "1.15")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "http://level7.org.uk/chroma/download/chroma-"
+                                  version ".tar.bz2"))
+              (sha256
+               (base32
+                "0nzm3j5wjazr1d6pkydqlc48sjf72hggq0hmx8mhq03114mmiir5"))))
+    (build-system gnu-build-system)
+    (arguments
+     `(#:tests? #f)) ; no tests included
+    (inputs
+     `(("sdl-union" ,(sdl-union (list sdl sdl-image sdl-mixer sdl-ttf)))
+       ("freetype" ,freetype)
+       ("ncurses" ,ncurses)
+       ("fontconfig" ,fontconfig)
+       ("libxft" ,libxft)))
+    (native-inputs
+     `(("pkg-config" ,pkg-config)))
+    (home-page "http://level7.org.uk/chroma/")
+    (synopsis "Abstract puzzle game")
+    (description "Chroma is an abstract puzzle game. A variety of colourful
+shapes are arranged in a series of increasingly complex patterns, forming
+ fiendish traps that must be disarmed and mysterious puzzles that must be
+ manipulated in order to give up their subtle secrets. Initially so
+ straightforward that anyone can pick it up and begin to play, yet gradually
+ becoming difficult enough to tax even the brightest of minds.")
+    (license license:gpl2+)))
+
 (define-public fillets-ng
   (package
     (name "fillets-ng")