2022-12-17

1 files changed, 50 insertions, 0 deletions

diff --git a/modules/nixos/games/minecraft.nix b/modules/nixos/games/minecraft.nix
new file mode 100644
index 0000000..e53f9eb
--- /dev/null
+++ b/modules/nixos/games/minecraft.nix
@@ -0,0 +1,50 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+with lib; let
+  cfg = config.nixfiles.modules.games.minecraft;
+in {
+  options.nixfiles.modules.games.minecraft = {
+    client.enable = mkEnableOption "Minecraft client";
+    server = {
+      enable = mkEnableOption "Minecraft server";
+
+      memory = mkOption {
+        description = "Amount of RAM to allocate.";
+        type = types.str;
+        default = "2G";
+      };
+    };
+  };
+
+  config = mkMerge [
+    (mkIf cfg.client.enable {
+      hm.home.packages = with pkgs; [pollymc];
+    })
+    (mkIf cfg.server.enable {
+      # Configurations, opslist, whitelist and plugins are managed imperatively.
+      # TODO Make it declarative.
+      services.minecraft-server = {
+        enable = true;
+        eula = true;
+
+        package = pkgs.minecraftServers.purpur_1_19_2;
+
+        # TODO Make a PR fixing trailing whitespace on this.
+        jvmOpts =
+          (concatStringsSep " " [
+            "-Xmx${cfg.server.memory}"
+            "-Xms${cfg.server.memory}"
+            "--add-modules=jdk.incubator.vector"
+          ])
+          + " ";
+      };
+
+      # Defined in /var/lib/minecraft/server.properties.
+      networking.firewall.allowedTCPPorts = [55565];
+    })
+  ];
+}