1 files changed, 37 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/games/fsg/default.nix b/nixpkgs/pkgs/games/fsg/default.nix
new file mode 100644
index 000000000000..d334439cafb8
--- /dev/null
+++ b/nixpkgs/pkgs/games/fsg/default.nix
@@ -0,0 +1,37 @@
+{ stdenv, fetchurl, gtk2, glib, pkgconfig, libGLU_combined, wxGTK, libX11, xorgproto
+, runtimeShell }:
+
+stdenv.mkDerivation {
+  name = "fsg-4.4";
+
+  src = fetchurl {
+    name = "fsg-src-4.4.tar.gz";
+    url = "https://github.com/ctrlcctrlv/wxsand/blob/master/fsg-src-4.4-ORIGINAL.tar.gz?raw=true";
+    sha256 = "1756y01rkvd3f1pkj88jqh83fqcfl2fy0c48mcq53pjzln9ycv8c";
+  };
+
+  hardeningDisable = [ "format" ];
+
+  nativeBuildInputs = [ pkgconfig ];
+  buildInputs = [ gtk2 glib libGLU_combined wxGTK libX11 xorgproto ];
+
+  preBuild = ''
+    sed -e '
+      s@currentProbIndex != 100@0@;
+    ' -i MainFrame.cpp
+    sed -re '/ctrans_prob/s/energy\[center][+]energy\[other]/(int)(fmin(energy[center]+energy[other],99))/g' -i Canvas.cpp
+  '';
+
+  installPhase = ''
+    mkdir -p $out/bin $out/libexec
+    cp sand $out/libexec
+    echo -e '#!${runtimeShell}\nLC_ALL=C '$out'/libexec/sand "$@"' >$out/bin/fsg
+    chmod a+x $out/bin/fsg
+  '';
+
+  meta = {
+    description = "Cellular automata engine tuned towards the likes of Falling Sand";
+    maintainers = [stdenv.lib.maintainers.raskin];
+    platforms = stdenv.lib.platforms.linux;
+  };
+}