init

s

package.nix

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+{
+  stdenvNoCC,
+  fetchFromGitea,
+  lib,
+  selectedTheme ? "starship",
+  screenNumber ? 0,
+}:
+let
+  themeDetails = import ./themes.nix;
+  validThemes = builtins.attrNames themeDetails;
+  themeName = lib.checkListOfEnum "plymouth theme" validThemes selectedTheme;
+  theme = themeDetails.${themeName};
+in
+stdenvNoCC.mkDerivation {
+  pname = "hudcore-plymouth";
+  version = themeName;
+
+  src = fetchFromGitea {
+    domain = "git.atagen.co";
+    owner = "atagen";
+    repo = "hudcore-plymouth";
+    rev = themeName;
+    hash = theme.hash;
+  };
+
+  installPhase =
+    let
+      templateScript = ./template.script;
+      templatePlymouth = ./template.plymouth;
+      themeScript = "${themeName}.script";
+      themePlymouth = "${themeName}.plymouth";
+    in
+    ''
+          cp ${templateScript} ${themeScript}
+          sed -i 's/%SCREEN_NUMBER%/${screenNumber}/g' ${themeScript}
+          sed -i 's/%FRAME_COUNT%/${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}
+    '';
+
+  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

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+[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

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+// based on work by Aditya Shakya (adi1090x@gmail.com)
+
+screen.w = Window.GetWidth(%SCREEN_NUMBER%);
+screen.h = Window.GetHeight(%SCREEN_NUMBER%);
+screen.hw = screen.w / 2;
+screen.hh = screen.h / 2;
+cur_frame = 0;
+
+for (i = 0; i < max_frames; i++) {
+	images.img[i] = Image(i + ".png");
+}
+images.w = images[0].GetWidth()
+images.h = images[0].GetHeight()
+images.hw = images.w / 2
+images.hh = images.h / 2
+
+draw = Sprite();
+draw.SetX(Window.GetX() + (screen.hw - images.hw));
+draw.SetY(Window.GetY() + (screen.hh - images.hh));
+
+fun refresh () {
+	image.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

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+{
+  starship = {
+    frameCount = 450;
+    hash = "0";
+  };
+}