Cataclysm DDA Git with CDDA-Tilesets for NixOS

cataclysm-git-with-tilesets.nix

{ pkgs, lib ? pkgs.lib, ... }:

let
  # Base Cataclysm DDA from git with specific version
  cataclysm-dda-base = pkgs.cataclysm-dda-git.override {
    version = "2025-11-16";
    rev = "7a3e4046a6c80ade503b1443db9c8d58518d19e8";
    sha256 = "sha256-0tvYuHODECN4zGD1vQys1+w7wbfr3eR2fuDdiunuTMI=";
  };

  # CDDA Tilesets from I-am-Erk/CDDA-Tilesets repository
  cdda-tilesets = { lib, buildTileSet, fetchFromGitHub }:
    let
      version = "2025-11-09";
      src = fetchFromGitHub {
        owner = "I-am-Erk";
        repo = "CDDA-Tilesets";
        rev = version;
        hash = "sha256-UJHC7lD8gwZUQhaW7n/C/W5lw6qkwgpc/zrCgXMof08=";
      };

      # Helper function to create a tileset package
      mkTileset = name: root: buildTileSet {
        modName = name;
        inherit version src;
        modRoot = "gfx/${root}";
      };
    in {
      # Standard tilesets
      UltimateCataclysm = mkTileset "UltimateCataclysm" "UltimateCataclysm";
      Altica = mkTileset "Altica" "Altica";
      MShockXottoPlus = mkTileset "MShockXotto+" "MShockXotto+";
      ChibiUltica = mkTileset "Chibi_Ultica" "Chibi_Ultica";
      RetroDays = mkTileset "Retrodays" "Retrodays";
      NeoDays = mkTileset "NeoDays" "NeoDays";
      GiantDays = mkTileset "GiantDays" "GiantDays";
      BrownLikeBears = mkTileset "BrownLikeBears" "BrownLikeBears";
      HollowMoon = mkTileset "HollowMoon" "HollowMoon";
      MushroomDream = mkTileset "Mushroom-Dream" "Mushroom-Dream";

      # Isometric variants
      UlticaIso = mkTileset "Ultica_iso" "Ultica_iso";
      IsoMSXPlus = mkTileset "IsoMSX+" "IsoMSX+";
      HitButtonIso = mkTileset "HitButton_iso" "HitButton_iso";

      # Overmap tilesets
      LarwickOvermap = mkTileset "Larwick_Overmap" "Larwick_Overmap";
      ASCIIOvermap = mkTileset "ASCII_Overmap" "ASCII_Overmap";
      SurveyorsMap = mkTileset "SurveyorsMap" "SurveyorsMap";
      PenAndPaper = mkTileset "PenAndPaper" "PenAndPaper";
    };

  # Create the cataclysm-dda package with tilesets
  cataclysm-dda-with-tilesets = cataclysm-dda-base.withMods (mods:
    with mods.extend (_: super: {
      tileset = super.tileset // (cdda-tilesets {
        inherit (pkgs) lib fetchFromGitHub;
        inherit (pkgs.cataclysmDDA) buildTileSet;
      });
    });
    [
      # Select which tilesets you want to install
      # Uncomment the ones you want:

      tileset.UltimateCataclysm
      # tileset.Altica
      # tileset.MShockXottoPlus
      # tileset.ChibiUltica
      # tileset.RetroDays
      # tileset.NeoDays
      # tileset.GiantDays
      # tileset.BrownLikeBears
      # tileset.HollowMoon
      # tileset.MushroomDream

      # Isometric variants:
      # tileset.UlticaIso
      # tileset.IsoMSXPlus
      # tileset.HitButtonIso

      # Overmap tilesets:
      # tileset.LarwickOvermap
      # tileset.ASCIIOvermap
      # tileset.SurveyorsMap
      # tileset.PenAndPaper

      # You can also include the default UndeadPeople tileset:
      tileset.UndeadPeople
    ]
  );
in
cataclysm-dda-with-tilesets