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flake.lock

@@ -0,0 +1,43 @@
+{
+  "nodes": {
+    "nix-systems": {
+      "locked": {
+        "lastModified": 1689347949,
+        "narHash": "sha256-12tWmuL2zgBgZkdoB6qXZsgJEH9LR3oUgpaQq2RbI80=",
+        "owner": "nix-systems",
+        "repo": "default-linux",
+        "rev": "31732fcf5e8fea42e59c2488ad31a0e651500f68",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default-linux",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1746397377,
+        "narHash": "sha256-5oLdRa3vWSRbuqPIFFmQBGGUqaYZBxX+GGtN9f/n4lU=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "ed30f8aba41605e3ab46421e3dcb4510ec560ff8",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nix-systems": "nix-systems",
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,25 @@
+{
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
+    nix-systems.url = "github:nix-systems/default-linux";
+  };
+
+  outputs =
+    {
+      self,
+      nixpkgs,
+      nix-systems,
+      ...
+    }:
+    let
+      forAllSystems = (
+        function:
+        nixpkgs.lib.genAttrs (import nix-systems) (system: function nixpkgs.legacyPackages.${system})
+      );
+    in
+    {
+      packages = forAllSystems (pkgs: {
+        default = pkgs.callPackage ./package.nix { };
+      });
+    };
+}

package.nix

@@ -0,0 +1,65 @@
+{
+  stdenvNoCC,
+  fetchFromGitea,
+  lib,
+  selectedTheme ? "starship",
+  screenNumber ? 0,
+}:
+let
+  themeDetails = import ./themes.nix;
+  # validThemes = builtins.attrNames themeDetails;
+  # themeName = lib.checkListOfEnum "plymouth theme" validThemes selectedTheme;
+  themeName = selectedTheme;
+  theme = themeDetails.${themeName};
+in
+stdenvNoCC.mkDerivation {
+  pname = "hudcore-plymouth";
+  version = "${themeName}";
+
+  src = fetchFromGitea {
+    domain = "git.atagen.co";
+    owner = "atagen";
+    repo = "hudcore-plymouth";
+    rev = theme.rev;
+    hash = theme.hash;
+  };
+
+  installPhase =
+    let
+      templateScript = ./template.script;
+      templatePlymouth = ./template.plymouth;
+      themeScript = "${themeName}.script";
+      themePlymouth = "${themeName}.plymouth";
+    in
+    ''
+          cp ${templateScript} ${themeScript}
+          sed -i 's/%SCREEN_NUMBER%/${toString screenNumber}/g' ${themeScript}
+          sed -i 's/%FRAME_COUNT%/${toString theme.frameCount}/g' ${themeScript}
+
+          cp ${templatePlymouth} ${themePlymouth}
+          sed -i 's/%NAME%/${themeName}/g' ${themePlymouth}
+
+        	mkdir -p $out/share/plymouth/themes/${themeName}
+      		cp -r * $out/share/plymouth/themes/${themeName}
+          find $out/share/plymouth/themes/ -name \*.plymouth -exec sed -i "s@\/usr\/@$out\/@" {} \;
+    '';
+
+  passthru.updateScript = { };
+
+  meta = {
+    description = "Fantasy HUD Plymouth themes";
+    longDescription = ''
+      A set of mostly HUD-inspired plymouth boot screens.
+      Default is `starship`.
+      Override `selectedTheme` in order to pick a different one.
+      Currently available:
+      `nixdrop`
+      `starship`
+      `containment`
+    '';
+    homepage = "https://git.atagen.co/atagen/hudcore-plymouth";
+    license = lib.licenses.gpl3;
+    platforms = lib.platforms.linux;
+    maintainers = [ lib.maintainers.atagen ];
+  };
+}

template.plymouth

@@ -0,0 +1,8 @@
+[Plymouth Theme]
+Name=%NAME%
+Description=A theme from the atagen/hudcore-plymouth pack.
+ModuleName=script
+
+[script]
+ImageDir=/usr/share/plymouth/themes/%NAME%
+ScriptFile=/usr/share/plymouth/themes/%NAME%/%NAME%.script

template.script

@@ -0,0 +1,102 @@
+// based on work by Aditya Shakya (adi1090x@gmail.com)
+bullets = null;
+prompt = null;
+message = null;
+question = null;
+answer = null;
+
+bullet.image = Image.Text("*", 1, 1, 1)
+
+state.time = 0.0;
+state.status = "play";
+
+screen.w = Window.GetWidth(%SCREEN_NUMBER%);
+screen.h = Window.GetHeight(%SCREEN_NUMBER%);
+// why can't we use screen.w ? wtf
+screen.hw = Window.GetWidth(%SCREEN_NUMBER%) / 2;
+screen.hh = Window.GetHeight(%SCREEN_NUMBER%) / 2;
+
+for (i = 0; i < %FRAME_COUNT%; i++) 
+{
+  images.img[i] = Image(i + ".png");
+}
+
+w = images.img[0].GetWidth()
+h = images.img[0].GetHeight()
+hw = images.img[0].GetWidth() / 2
+hh = images.img[0].GetHeight() / 2
+
+draw = Sprite();
+draw.SetX(Window.GetX() + (screen.hw - hw));
+draw.SetY(Window.GetY() + (screen.hh - hh));
+
+
+cur_frame = 0;
+
+fun refresh ()
+{
+	draw.SetImage(images.img[cur_frame]);
+	cur_frame = (cur_frame + 1) % %FRAME_COUNT%;
+}
+Plymouth.SetRefreshFunction(refresh);
+
+fun DisplayQuestionCallback(prompt, entry)
+{
+    question = null;
+    answer = null;
+
+    if (entry == "")
+        entry = "<answer>";
+
+    question.image = Image.Text(prompt, 1, 1, 1);
+    question.sprite = Sprite(question.image);
+    question.sprite.SetX(screen.half.w - question.image.GetWidth() / 2);
+    question.sprite.SetY(screen.h - 4 * question.image.GetHeight());
+
+    answer.image = Image.Text(entry, 1, 1, 1);
+    answer.sprite = Sprite(answer.image);
+    answer.sprite.SetX(screen.half.w - answer.image.GetWidth() / 2);
+    answer.sprite.SetY(screen.h - 2 * answer.image.GetHeight());
+}
+Plymouth.SetDisplayQuestionFunction(DisplayQuestionCallback);
+
+
+fun DisplayPasswordCallback(nil, bulletCount)
+{
+    state.status = "pause";
+    totalWidth = bulletCount * bullet.image.GetWidth();
+    startPos = screen.half.w - totalWidth / 2;
+
+    prompt.image = Image.Text("Enter Password", 1, 1, 1);
+    prompt.sprite = Sprite(prompt.image);
+    prompt.sprite.SetX(screen.half.w - prompt.image.GetWidth() / 2);
+    prompt.sprite.SetY(screen.h - 4 * prompt.image.GetHeight());
+
+    // Clear all bullets (user might hit backspace)
+    bullets = null;
+    for (i = 0; i < bulletCount; i++) {
+        bullets[i].sprite = Sprite(bullet.image);
+        bullets[i].sprite.SetX(startPos + i * bullet.image.GetWidth());
+        bullets[i].sprite.SetY(screen.h - 2 * bullet.image.GetHeight());
+    }
+}
+Plymouth.SetDisplayPasswordFunction(DisplayPasswordCallback);
+
+fun DisplayNormalCallback()
+{
+    state.status = "play";
+    bullets = null;
+    prompt = null;
+    message = null;
+    question = null;
+    answer = null;
+}
+Plymouth.SetDisplayNormalFunction(DisplayNormalCallback);
+
+fun MessageCallback(text)
+{
+    message.image = Image.Text(text, 1, 1, 1);
+    message.sprite = Sprite(message.image);
+    message.sprite.SetPosition(screen.half.w - message.image.GetWidth() / 2, message.image.GetHeight());
+}
+Plymouth.SetMessageFunction(MessageCallback);

themes.nix

@@ -0,0 +1,7 @@
+{
+  starship = {
+    frameCount = 480;
+    rev = "9347219f3dd5c1641b5a981b366290d946fdd777";
+    hash = "sha256-3IhfX1XJE4lvNMjQrzscTww+xK6vjH1OOjb0JT3+AfY=";
+  };
+}