depot/third_party/nixpkgs/pkgs/games/openttd/default.nix

{ lib, stdenv, fetchurl, fetchzip, cmake, SDL2, libpng, zlib, xz, freetype, fontconfig
, withOpenGFX ? true, withOpenSFX ? true, withOpenMSX ? true
, withFluidSynth ? true, audioDriver ? "alsa", fluidsynth, soundfont-fluid, procps
, writeScriptBin, makeWrapper, runtimeShell
}:

let
  opengfx = fetchzip {
    url = "https://cdn.openttd.org/opengfx-releases/7.1/opengfx-7.1-all.zip";
    sha256 = "sha256-daJ/Qwg/okpmLQkXcCjruIiP8GEwyyp02YWcGQepxzs=";
  };

  opensfx = fetchzip {
    url = "https://cdn.openttd.org/opensfx-releases/1.0.3/opensfx-1.0.3-all.zip";
    sha256 = "sha256-QmfXizrRTu/fUcVOY7tCndv4t4BVW+fb0yUi8LgSYzM=";
  };

  openmsx = fetchzip {
    url = "https://cdn.openttd.org/openmsx-releases/0.4.2/openmsx-0.4.2-all.zip";
    sha256 = "sha256-Cgrg2m+uTODFg39mKgX+hE8atV7v5bVyZd716vSZB8M=";
  };

  playmidi = writeScriptBin "playmidi" ''
    #!${runtimeShell}
    trap "${procps}/bin/pkill fluidsynth" EXIT
    ${fluidsynth}/bin/fluidsynth -a ${audioDriver} -i ${soundfont-fluid}/share/soundfonts/FluidR3_GM2-2.sf2 $*
  '';

in
stdenv.mkDerivation rec {
  pname = "openttd";
  version = "12.1";

  src = fetchurl {
    url = "https://cdn.openttd.org/openttd-releases/${version}/${pname}-${version}-source.tar.xz";
    sha256 = "sha256-JYv1uZgwEIkLoQUYtQa8SrgPfAjM7FlJfpulWkqj5+M=";
  };

  nativeBuildInputs = [ cmake makeWrapper ];
  buildInputs = [ SDL2 libpng xz zlib freetype fontconfig ]
    ++ lib.optionals withFluidSynth [ fluidsynth soundfont-fluid ];

  prefixKey = "--prefix-dir=";

  configureFlags = [
    "--without-liblzo2"
  ];

  postInstall = ''
    ${lib.optionalString withOpenGFX ''
      cp ${opengfx}/*.tar $out/share/games/openttd/baseset
    ''}

    mkdir -p $out/share/games/openttd/data

    ${lib.optionalString withOpenSFX ''
      cp ${opensfx}/*.tar $out/share/games/openttd/data
    ''}

    mkdir $out/share/games/openttd/baseset/openmsx

    ${lib.optionalString withOpenMSX ''
      cp ${openmsx}/*.tar $out/share/games/openttd/baseset/openmsx
    ''}

    ${lib.optionalString withFluidSynth ''
      wrapProgram $out/bin/openttd \
        --add-flags -m \
        --add-flags extmidi:cmd=${playmidi}/bin/playmidi
    ''}
  '';

  meta = with lib; {
    description = ''Open source clone of the Microprose game "Transport Tycoon Deluxe"'';
    longDescription = ''
      OpenTTD is a transportation economics simulator. In single player mode,
      players control a transportation business, and use rail, road, sea, and air
      transport to move goods and people around the simulated world.

      In multiplayer networked mode, players may:
        - play competitively as different businesses
        - play cooperatively controlling the same business
        - observe as spectators
    '';
    homepage = "https://www.openttd.org/";
    license = licenses.gpl2;
    platforms = platforms.linux;
    maintainers = with maintainers; [ jcumming fpletz ];
  };
}