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path: root/pkgs/games/dwarf-fortress/default.nix
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{ stdenv, fetchurl, SDL, SDL_image, SDL_ttf, gtk, glib, mesa, openal, glibc, libsndfile
, copyDataDirectory ? false }:

assert stdenv.system == "i686-linux";

stdenv.mkDerivation rec {
  name = "dwarf-fortress-0.34.11";

  src = fetchurl {
    url = "http://www.bay12games.com/dwarves/df_34_11_linux.tar.bz2";
    sha256 = "1qk9vmdxzs0li81c8bglpj3m7aw9k71x1slf58hv2bz7hdndl3kj";
  };

  phases = "unpackPhase patchPhase installPhase";

  /* :TODO: Game options should be configurable by patching the default configuration files */

  permission = ./df_permission;

  installPhase = ''
    set -x
    mkdir -p $out/bin
    mkdir -p $out/share/df_linux
    cp -r * $out/share/df_linux
    cp $permission $out/share/df_linux/nix_permission

    patchelf --set-interpreter ${glibc}/lib/ld-linux.so.2 $out/share/df_linux/libs/Dwarf_Fortress
    ln -s ${libsndfile}/lib/libsndfile.so $out/share/df_linux/libs/

    cat > $out/bin/dwarf-fortress << EOF
    #!${stdenv.shell}
    export DF_DIR="\$HOME/.config/df_linux"
    if [ -n "\$XDG_DATA_HOME" ]
     then export DF_DIR="\$XDG_DATA_HOME/df_linux"
    fi

    # Recreate a directory structure reflecting the original
    # distribution in the user directory (for modding support)
    ${if copyDataDirectory then ''
      if [ ! -d "\$DF_DIR" ];
      then
        mkdir -p \$DF_DIR
        cp -r $out/share/df_linux/* \$DF_DIR/
        chmod -R u+rw \$DF_DIR/
      fi
    '' else ''
      # Link in the static stuff
      mkdir -p \$DF_DIR
      ln -sf $out/share/df_linux/libs \$DF_DIR/
      ln -sf $out/share/df_linux/raw \$DF_DIR/
      ln -sf $out/share/df_linux/df \$DF_DIR/

      # Delete old data directory
      rm -rf \$DF_DIR/data

      # Link in the static data directory
      mkdir \$DF_DIR/data
      for i in $out/share/df_linux/data/*
      do
       ln -s \$i \$DF_DIR/data/
      done

      # index initial_movies, announcement, dipscript and help files are as of 0.31.16 opened in read/write mode instead of read-only mode
      # this is a hack to work around this
      # Should I just apply this to the whole data directory?
      for i in index initial_movies announcement dipscript help
      do
       rm \$DF_DIR/data/\$i
       cp -rf $out/share/df_linux/data/\$i \$DF_DIR/data/
       chmod -R u+w \$DF_DIR/data/\$i
      done

      # link in persistant data
      mkdir -p \$DF_DIR/save
      ln -s \$DF_DIR/save \$DF_DIR/data/
    ''}

    # now run Dwarf Fortress!
    export LD_LIBRARY_PATH=\$DF_DIR/df_linux/libs/:${SDL}/lib:${SDL_image}/lib/:${SDL_ttf}/lib/:${gtk}/lib/:${glib}/lib/:${mesa}/lib/:${openal}/lib/
    \$DF_DIR/df "\$@"
    EOF

    chmod +x $out/bin/dwarf-fortress
  '';

  meta = {
      description = "control a dwarven outpost or an adventurer in a randomly generated, persistent world";
      homepage = http://www.bay12games.com/dwarves;
      license = "unfree-redistributable";
      maintainers = [stdenv.lib.maintainers.roconnor];
  };
}