2022-08-12

8 files changed, 224 insertions, 0 deletions

diff --git a/modules/nixfiles/games/default.nix b/modules/nixfiles/games/default.nix
new file mode 100644
index 0000000..532fc57
--- /dev/null
+++ b/modules/nixfiles/games/default.nix
@@ -0,0 +1,47 @@
+{
+  config,
+  lib,
+  ...
+}:
+with lib; let
+  cfg = config.nixfiles.modules.games;
+in {
+  imports = [
+    ./gamemode.nix
+    ./gog.nix
+    ./lutris.nix
+    ./mangohud.nix
+    ./minecraft.nix
+    ./steam-run.nix
+    ./steam.nix
+  ];
+
+  options.nixfiles.modules.games.enable32BitSupport =
+    mkEnableOption "Whether to enable support for games.";
+
+  config = mkIf cfg.enable32BitSupport {
+    services = {
+      jack.alsa.support32Bit = config.services.jack.alsa.enable;
+
+      pipewire.alsa.support32Bit = config.services.pipewire.alsa.enable;
+
+      xserver.inputClassSections = [
+        ''
+          Identifier "ds-touchpad"
+          Driver "libinput"
+          MatchProduct "Wireless Controller Touchpad"
+          Option "Ignore" "true"
+        ''
+      ];
+    };
+
+    hardware = {
+      opengl = mkIf config.hardware.opengl.enable {
+        extraPackages32 = config.hardware.opengl.extraPackages;
+        driSupport32Bit = config.hardware.opengl.driSupport;
+      };
+
+      pulseaudio.support32Bit = config.hardware.pulseaudio.enable;
+    };
+  };
+}
diff --git a/modules/nixfiles/games/gamemode.nix b/modules/nixfiles/games/gamemode.nix
new file mode 100644
index 0000000..a74b651
--- /dev/null
+++ b/modules/nixfiles/games/gamemode.nix
@@ -0,0 +1,13 @@
+{
+  config,
+  lib,
+  ...
+}:
+with lib; let
+  cfg = config.nixfiles.modules.games.gamemode;
+in {
+  options.nixfiles.modules.games.gamemode.enable =
+    mkEnableOption "Whether to enable GameMode.";
+
+  config = mkIf cfg.enable {programs.gamemode.enable = true;};
+}
diff --git a/modules/nixfiles/games/gog.nix b/modules/nixfiles/games/gog.nix
new file mode 100644
index 0000000..f1188a2
--- /dev/null
+++ b/modules/nixfiles/games/gog.nix
@@ -0,0 +1,19 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+with lib; let
+  cfg = config.nixfiles.modules.games.gog;
+in {
+  options.nixfiles.modules.games.gog.enable =
+    mkEnableOption
+    "Whether to enable GOG clients and the ability to run GOG games.";
+
+  config = mkIf cfg.enable {
+    nixfiles.modules.games.steam-run.enable = true;
+
+    hm.home.packages = with pkgs; [lgogdownloader];
+  };
+}
diff --git a/modules/nixfiles/games/lutris.nix b/modules/nixfiles/games/lutris.nix
new file mode 100644
index 0000000..ec1eaa2
--- /dev/null
+++ b/modules/nixfiles/games/lutris.nix
@@ -0,0 +1,37 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+with lib; let
+  cfg = config.nixfiles.modules.games.lutris;
+in {
+  options.nixfiles.modules.games.lutris.enable =
+    mkEnableOption "Whether to enable Lutris.";
+
+  config = mkIf cfg.enable {
+    nixfiles.modules.games = {
+      steam-run.enable = true;
+      gamemode.enable = true;
+    };
+
+    hm.home.packages = with pkgs; [
+      (lutris.override {
+        lutris-unwrapped = lutris-unwrapped.override {
+          wine = buildFHSUserEnv {
+            # We don't really need Wine because Lutris downloads required
+            # runtime files for us. This feature is more robust because you can
+            # juggle different versions without manually rebuilding anything
+            # because nixpkgs cache was pruned.
+            name = "empty";
+          };
+        };
+        steamSupport = false;
+        extraPkgs = _: [
+          driversi686Linux.mesa # Battle.net
+        ];
+      })
+    ];
+  };
+}
diff --git a/modules/nixfiles/games/mangohud.nix b/modules/nixfiles/games/mangohud.nix
new file mode 100644
index 0000000..21d5fd1
--- /dev/null
+++ b/modules/nixfiles/games/mangohud.nix
@@ -0,0 +1,13 @@
+{
+  config,
+  lib,
+  ...
+}:
+with lib; let
+  cfg = config.nixfiles.modules.games.mangohud;
+in {
+  options.nixfiles.modules.games.mangohud.enable =
+    mkEnableOption "Whether to enable MangoHud.";
+
+  config = mkIf cfg.enable {hm.programs.mangohud.enable = true;};
+}
diff --git a/modules/nixfiles/games/minecraft.nix b/modules/nixfiles/games/minecraft.nix
new file mode 100644
index 0000000..70a98ce
--- /dev/null
+++ b/modules/nixfiles/games/minecraft.nix
@@ -0,0 +1,15 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+with lib; let
+  cfg = config.nixfiles.modules.games.minecraft;
+in {
+  options.nixfiles.modules.games.minecraft.enable =
+    mkEnableOption "Whether to enable Minecraft.";
+
+  config =
+    mkIf cfg.enable {hm.home.packages = with pkgs; [jre nixfiles.UltimMC];};
+}
diff --git a/modules/nixfiles/games/steam-run.nix b/modules/nixfiles/games/steam-run.nix
new file mode 100644
index 0000000..983cc77
--- /dev/null
+++ b/modules/nixfiles/games/steam-run.nix
@@ -0,0 +1,59 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+with lib; let
+  cfg = config.nixfiles.modules.games.steam-run;
+in {
+  options.nixfiles.modules.games.steam-run = {
+    enable = mkEnableOption "Whether to enable native Steam runtime.";
+
+    quirks = {
+      mountandblade = mkEnableOption ''Fix "Mount & Blade: Warband" issues.'';
+    };
+  };
+
+  config = mkIf cfg.enable {
+    nixfiles.modules = {
+      games = {
+        enable32BitSupport = true;
+        gamemode.enable = true;
+      };
+    };
+
+    hm.home.packages = with pkgs; [
+      (steam.override {
+        extraLibraries = _:
+          with cfg.quirks;
+            optionals mountandblade [
+              (glew.overrideAttrs (_: super: let
+                opname = super.pname;
+              in rec {
+                pname = "${opname}-mountandblade";
+                inherit (super) version;
+                src = fetchurl {
+                  url = "mirror://sourceforge/${opname}/${opname}-${version}.tgz";
+                  sha256 = "sha256-BN6R5+Z2MDm8EZQAlc2cf4gLq6ghlqd2X3J6wFqZPJU=";
+                };
+              }))
+              (fmodex.overrideAttrs (_: super: let
+                opname = super.pname;
+              in rec {
+                pname = "${opname}-mountandblade";
+                inherit (super) version;
+                installPhase = let
+                  libPath =
+                    makeLibraryPath [alsa-lib libpulseaudio stdenv.cc.cc];
+                in ''
+                  install -Dm755 api/lib/libfmodex64-${version}.so $out/lib/libfmodex64.so
+                  patchelf --set-rpath ${libPath} $out/lib/libfmodex64.so
+                '';
+              }))
+            ];
+      })
+      .run
+    ];
+  };
+}
diff --git a/modules/nixfiles/games/steam.nix b/modules/nixfiles/games/steam.nix
new file mode 100644
index 0000000..c1d471e
--- /dev/null
+++ b/modules/nixfiles/games/steam.nix
@@ -0,0 +1,21 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+with lib; let
+  cfg = config.nixfiles.modules.games.steam;
+in {
+  options.nixfiles.modules.games.steam.enable =
+    mkEnableOption "Whether to enable Steam runtime.";
+
+  config = mkIf cfg.enable {
+    nixfiles.modules.games = {
+      enable32BitSupport = true;
+      gamemode.enable = true;
+    };
+
+    hm.home.packages = with pkgs; [steam];
+  };
+}