Reimplement the archived UI widget stack on the new element-tree system

The old widget system (archive/dusk/ui/) depended on infrastructure this
rewrite deleted -- a static X-macro element list, a 9-slice UI_FRAME, and
a global gamepad/keyboard focus stack -- so everything below is rebuilt
on top of the new native uielement_t pool + parent/child tree instead,
gamepad/keyboard-only (no mouse support exists in the input system).

New JS widgets (assets/scripts/), all pure composites of Label/Rectangle
following the Button.js pattern: Checkbox, Tab, Slider, Dropdown. Slider/
Dropdown expose a directionInput(dx, dy) hook so a menu can hand them
LEFT/RIGHT before falling back to cursor movement.

New Menu.js replaces the old global uifocus_t stack: a small push/pop
stack of Menu instances where only the topmost consumes CANCEL/ACCEPT/
direction input each tick (needed for nested modals -- a Settings
sub-page menu plus a "discard changes?" Confirm can be open at once).
Held-direction repeat timing matches the old 0.5s delay / 0.1s repeat.

New overlay composites (added via a new UI.addOverlay()/UI.removeOverlay(),
always drawn/updated after normal roots): FpsCounter, ConsoleOverlay
(one Label per console history line, driven directly rather than via
add() since History (16) exceeds the 8-children-per-element cap), Crop
(letterbox/pillarbox bars), and Fullbox (a reusable tweened full-screen
fade covering both the old fullbox and transition effects -- reuses
shared instances rather than allocate-and-dispose, since disposing an
element from inside its own render() callback risks the same JerryScript
refcount corruption hit earlier in this rewrite).

New Confirm.js (Yes/No dialog) and Settings.js (+ SettingsGeneral/
SettingsInput sub-pages) built on Menu. Display/Audio settings pages are
intentionally not ported -- neither had a real backing engine system
even in the old code. Frame is a flat Rectangle for now, not real 9-slice
(a genuinely bigger native lift, deliberately deferred).

Small native binding additions needed by the above, each with its own
unit test: Time.renderDelta, Console.lineCount/getLine/visible/
consumeDirty, a new Screen module, a new Locale module, Input.deadzone,
a new Save module, and Label.color (was missing entirely). Also fixes
a real gap from the UI.addOverlay() work: uiElementDispose() wasn't
removing disposed elements from the new overlay root array, which would
have left dangling ids behind.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

.github/actions/setup-devkitpro/action.yml

@@ -0,0 +1,49 @@
+name: Setup devkitPro
+description: Install devkitPro with GameCube/Wii packages on an Ubuntu runner
+
+runs:
+  using: composite
+  steps:
+    - name: Install apt dependencies
+      shell: bash
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y \
+          cmake \
+          python3 \
+          python3-pip \
+          python3-polib \
+          python3-pil \
+          python3-dotenv \
+          python3-pyqt5 \
+          python3-opengl \
+          xorriso
+    - name: Install devkitPro pacman
+      shell: bash
+      run: |
+        sudo ln -sf /proc/self/mounts /etc/mtab
+        wget https://apt.devkitpro.org/install-devkitpro-pacman \
+          -O /tmp/install-devkitpro-pacman
+        echo "=== installer script contents ==="
+        cat /tmp/install-devkitpro-pacman
+        echo "================================="
+        chmod +x /tmp/install-devkitpro-pacman
+        sudo /tmp/install-devkitpro-pacman
+        echo "DEVKITPRO=/opt/devkitpro" >> $GITHUB_ENV
+        echo "DEVKITPPC=/opt/devkitpro/devkitPPC" >> $GITHUB_ENV
+        echo "/opt/devkitpro/tools/bin" >> $GITHUB_PATH
+        echo "/opt/devkitpro/devkitPPC/bin" >> $GITHUB_PATH
+    - name: Install devkitPro GameCube/Wii packages
+      shell: bash
+      run: |
+        sudo dkp-pacman -S --needed --noconfirm \
+          gamecube-dev \
+          gamecube-sdl2 \
+          ppc-liblzma \
+          ppc-libzip \
+          libogc2 \
+          gamecube-tools \
+          ppc-libmad \
+          ppc-zlib-ng \
+          ppc-bzip2 \
+          ppc-zstd

.github/actions/setup-pspdev/action.yml

@@ -0,0 +1,20 @@
+name: Setup pspdev
+description: Install the pspdev PSP toolchain on an Ubuntu runner
+
+runs:
+  using: composite
+  steps:
+    - name: Install dependencies
+      shell: bash
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y cmake python3 python3-pip python3-dotenv
+    - name: Install pspdev toolchain
+      shell: bash
+      run: |
+        wget -q \
+          https://github.com/pspdev/pspdev/releases/latest/download/pspdev-ubuntu-latest-x86_64.tar.gz \
+          -O /tmp/pspdev.tar.gz
+        sudo tar -xzf /tmp/pspdev.tar.gz -C /usr/local
+        echo "PSPDEV=/usr/local/pspdev" >> $GITHUB_ENV
+        echo "/usr/local/pspdev/bin" >> $GITHUB_PATH

.github/workflows/build.yml

@@ -4,27 +4,37 @@ on:
     tags:
       - '*'
 jobs:
-  run-tests:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v6
-      - name: Set up Docker
-        uses: docker/setup-docker-action@v5
-      - name: Run tests in Docker
-        run: ./scripts/test-linux-docker.sh
-
   build-linux:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v4
-      - name: Set up Docker
+      - name: Install dependencies
-        uses: docker/setup-docker-action@v5
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y \
+            build-essential \
+            cmake \
+            python3 \
+            python3-pip \
+            python3-polib \
+            python3-pil \
+            libsdl2-dev \
+            libgl1-mesa-dev \
+            libzip-dev \
+            python3-dotenv \
+            python3-pyqt5 \
+            python3-opengl \
+            xz-utils \
+            liblzma-dev \
+            libbz2-dev \
+            zlib1g-dev \
+            git \
+            libssl-dev
       - name: Build Linux
-        run: ./scripts/build-linux-docker.sh
+        run: ./scripts/build-linux.sh
       - name: Upload Linux binary
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v3
         with:
           name: dusk-linux
           path: build-linux/Dusk
@@ -34,53 +44,72 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v4
-      - name: Set up Docker
+      - name: Setup pspdev
-        uses: docker/setup-docker-action@v5
+        uses: ./.github/actions/setup-pspdev
-      - name: Build psp
+      - name: Build PSP
-        run: ./scripts/build-psp-docker.sh
+        run: ./scripts/build-psp.sh
       - name: Move EBOOT.PBP to Dusk subfolder
         run: |
           mkdir -p ./git-artifcats/Dusk/PSP/GAME/Dusk
           cp build-psp/EBOOT.PBP ./git-artifcats/Dusk/PSP/GAME/Dusk/EBOOT.PBP
-      - name: Upload psp binary
+      - name: Upload PSP binary
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v3
         with:
           name: dusk-psp
           path: ./git-artifcats/Dusk
           if-no-files-found: error
 
-  # build-vita:
-  #   runs-on: ubuntu-latest
-  #   steps:
-  #     - name: Checkout repository
-  #       uses: actions/checkout@v6
-  #     - name: Set up Docker
-  #       uses: docker/setup-docker-action@v5
-  #     - name: Build Vita
-  #       run: ./scripts/build-vita-docker.sh
-  #     - name: Upload Vita binary
-  #       uses: actions/upload-artifact@v6
-  #       with:
-  #         name: dusk-vita
-  #         path: build-vita/Dusk.vpk
-  #         if-no-files-found: error
-
   build-knulli:
     runs-on: ubuntu-latest
+    container:
+      image: debian:trixie
     steps:
+      - name: Install Node.js
+        run: apt-get update && apt-get install -y nodejs
       - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v4
-      - name: Set up Docker
+      - name: Install dependencies
-        uses: docker/setup-docker-action@v5
+        run: |
-      - name: Build knulli
+          dpkg --add-architecture arm64
-        run: ./scripts/build-knulli-docker.sh
+          apt-get update
+          apt-get install -y --no-install-recommends \
+            crossbuild-essential-arm64 \
+            ca-certificates \
+            pkg-config \
+            cmake \
+            make \
+            ninja-build \
+            git \
+            file \
+            python3 \
+            python3-pip \
+            python3-polib \
+            python3-pil \
+            python3-dotenv \
+            python3-pyqt5 \
+            python3-opengl \
+            liblua5.4-dev:arm64 \
+            xz-utils:arm64 \
+            libbz2-dev:arm64 \
+            zlib1g-dev:arm64 \
+            libzip-dev:arm64 \
+            libssl-dev:arm64 \
+            libsdl2-dev:arm64 \
+            liblzma-dev:arm64 \
+            libopengl0:arm64 \
+            libgl1:arm64 \
+            libegl1:arm64 \
+            libgles2:arm64 \
+            libgl1-mesa-dev:arm64
+      - name: Build Knulli
+        run: ./scripts/build-knulli.sh
       - name: Move output to Dusk subfolder
         run: |
           mkdir -p ./git-artifcats/Dusk
           cp -r build-knulli/dusk ./git-artifcats/Dusk
-      - name: Upload knulli binary
+      - name: Upload Knulli binary
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v3
         with:
           name: dusk-knulli
           path: ./git-artifcats/Dusk
@@ -88,20 +117,31 @@ jobs:
 
   build-gamecube:
     runs-on: ubuntu-latest
+    container:
+      image: ghcr.io/extremscorner/libogc2:latest
     steps:
+      - name: Install Node.js
+        run: apt-get update && apt-get install -y nodejs
       - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v4
-      - name: Set up Docker
+      - name: Install additional dependencies
-        uses: docker/setup-docker-action@v5
+        run: |
+          apt-get install -y \
+            python3-pip python3-polib python3-pil \
+            python3-dotenv python3-pyqt5 python3-opengl
+          dkp-pacman -Syu --noconfirm
+          dkp-pacman -S --needed --noconfirm \
+            gamecube-sdl2 ppc-liblzma ppc-libzip \
+            gamecube-tools ppc-libmad ppc-zlib-ng ppc-bzip2 ppc-zstd
       - name: Build GameCube
-        run: ./scripts/build-gamecube-docker.sh
+        run: ./scripts/build-gamecube.sh
-      - name: Copy output files.
+      - name: Copy output files
         run: |
           mkdir -p ./git-artifcats/Dusk
           cp build-gamecube/Dusk.dol ./git-artifcats/Dusk/Dusk.dol
           cp build-gamecube/dusk.dsk ./git-artifcats/Dusk/dusk.dsk
       - name: Upload GameCube binary
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v3
         with:
           name: dusk-gamecube
           path: ./git-artifcats/Dusk
@@ -109,21 +149,32 @@ jobs:
 
   build-gamecube-iso:
     runs-on: ubuntu-latest
+    container:
+      image: ghcr.io/extremscorner/libogc2:latest
     steps:
+      - name: Install Node.js
+        run: apt-get update && apt-get install -y nodejs
       - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v4
-      - name: Set up Docker
+      - name: Install additional dependencies
-        uses: docker/setup-docker-action@v5
+        run: |
+          apt-get install -y \
+            python3-pip python3-polib python3-pil \
+            python3-dotenv python3-pyqt5 python3-opengl xorriso
+          dkp-pacman -Syu --noconfirm
+          dkp-pacman -S --needed --noconfirm \
+            gamecube-sdl2 ppc-liblzma ppc-libzip \
+            gamecube-tools ppc-libmad ppc-zlib-ng ppc-bzip2 ppc-zstd
       - name: Build GameCube ISO
-        run: ./scripts/build-gamecube-iso-docker.sh
+        run: ./scripts/build-gamecube-iso.sh
-      - name: Copy output files.
+      - name: Copy output files
         run: |
           mkdir -p ./git-artifcats/Dusk
           cp build-gamecube-iso/Dusk-NTSC-J.iso ./git-artifcats/Dusk/Dusk-NTSC-J.iso
           cp build-gamecube-iso/Dusk-NTSC-U.iso ./git-artifcats/Dusk/Dusk-NTSC-U.iso
           cp build-gamecube-iso/Dusk-PAL.iso    ./git-artifcats/Dusk/Dusk-PAL.iso
       - name: Upload GameCube ISO
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v3
         with:
           name: dusk-gamecube-iso
           path: ./git-artifcats/Dusk
@@ -131,21 +182,32 @@ jobs:
 
   build-wii:
     runs-on: ubuntu-latest
+    container:
+      image: ghcr.io/extremscorner/libogc2:latest
     steps:
+      - name: Install Node.js
+        run: apt-get update && apt-get install -y nodejs
       - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v4
-      - name: Set up Docker
+      - name: Install additional dependencies
-        uses: docker/setup-docker-action@v5
+        run: |
+          apt-get install -y \
+            python3-pip python3-polib python3-pil \
+            python3-dotenv python3-pyqt5 python3-opengl
+          dkp-pacman -Syu --noconfirm
+          dkp-pacman -S --needed --noconfirm \
+            gamecube-sdl2 ppc-liblzma ppc-libzip \
+            gamecube-tools ppc-libmad ppc-zlib-ng ppc-bzip2 ppc-zstd
       - name: Build Wii
-        run: ./scripts/build-wii-docker.sh
+        run: ./scripts/build-wii.sh
-      - name: Copy output files.
+      - name: Copy output files
         run: |
           mkdir -p ./git-artifcats/Dusk/apps/Dusk
           cp build-wii/boot.dol ./git-artifcats/Dusk/apps/Dusk/boot.dol
           cp build-wii/dusk.dsk ./git-artifcats/Dusk/apps/Dusk/dusk.dsk
           cp build-wii/meta.xml ./git-artifcats/Dusk/apps/Dusk/meta.xml
       - name: Upload Wii binary
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v3
         with:
           name: dusk-wii
           path: ./git-artifcats/Dusk
@@ -153,21 +215,32 @@ jobs:
 
   build-wii-iso:
     runs-on: ubuntu-latest
+    container:
+      image: ghcr.io/extremscorner/libogc2:latest
     steps:
+      - name: Install Node.js
+        run: apt-get update && apt-get install -y nodejs
       - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v4
-      - name: Set up Docker
+      - name: Install additional dependencies
-        uses: docker/setup-docker-action@v5
+        run: |
+          apt-get install -y \
+            python3-pip python3-polib python3-pil \
+            python3-dotenv python3-pyqt5 python3-opengl xorriso
+          dkp-pacman -Syu --noconfirm
+          dkp-pacman -S --needed --noconfirm \
+            gamecube-sdl2 ppc-liblzma ppc-libzip \
+            gamecube-tools ppc-libmad ppc-zlib-ng ppc-bzip2 ppc-zstd
       - name: Build Wii ISO
-        run: ./scripts/build-wii-iso-docker.sh
+        run: ./scripts/build-wii-iso.sh
-      - name: Copy output files.
+      - name: Copy output files
         run: |
           mkdir -p ./git-artifcats/Dusk
           cp build-wii-iso/Dusk-NTSC-J.iso ./git-artifcats/Dusk/Dusk-NTSC-J.iso
           cp build-wii-iso/Dusk-NTSC-U.iso ./git-artifcats/Dusk/Dusk-NTSC-U.iso
           cp build-wii-iso/Dusk-PAL.iso    ./git-artifcats/Dusk/Dusk-PAL.iso
       - name: Upload Wii ISO
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v3
         with:
           name: dusk-wii-iso
           path: ./git-artifcats/Dusk

.github/workflows/test.yml

@@ -0,0 +1,106 @@
+name: Test Dusk
+on:
+  pull_request:
+    branches:
+      - main
+jobs:
+  run-tests:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      - name: Install dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y \
+            build-essential \
+            cmake \
+            python3 \
+            python3-pip \
+            python3-polib \
+            python3-pil \
+            libsdl2-dev \
+            libgl1-mesa-dev \
+            libzip-dev \
+            python3-dotenv \
+            python3-pyqt5 \
+            python3-opengl \
+            xz-utils \
+            liblzma-dev \
+            libbz2-dev \
+            zlib1g-dev \
+            git \
+            libssl-dev
+      - name: Run tests
+        run: ./scripts/test-linux.sh
+
+  # Emulator smoke tests: boot the built disc/EBOOT for a fixed window and
+  # confirm the emulator doesn't crash. Not yet verified against a real
+  # runner (no CI run has exercised these) -- continue-on-error so a
+  # flaky/broken emulator step doesn't block the required Linux test job.
+  run-tests-gamecube-dolphin:
+    runs-on: ubuntu-latest
+    continue-on-error: true
+    container:
+      image: ghcr.io/extremscorner/libogc2:latest
+    steps:
+      - name: Install Node.js
+        run: apt-get update && apt-get install -y nodejs
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      - name: Install additional dependencies
+        run: |
+          apt-get install -y \
+            python3-pip python3-polib python3-pil \
+            python3-dotenv python3-pyqt5 python3-opengl xorriso \
+            dolphin-emu xvfb
+          dkp-pacman -Syu --noconfirm
+          dkp-pacman -S --needed --noconfirm \
+            gamecube-sdl2 ppc-liblzma ppc-libzip \
+            gamecube-tools ppc-libmad ppc-zlib-ng ppc-bzip2 ppc-zstd
+      - name: Build GameCube ISO and boot it in Dolphin
+        run: ./scripts/test-gamecube-dolphin.sh
+
+  run-tests-wii-dolphin:
+    runs-on: ubuntu-latest
+    continue-on-error: true
+    container:
+      image: ghcr.io/extremscorner/libogc2:latest
+    steps:
+      - name: Install Node.js
+        run: apt-get update && apt-get install -y nodejs
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      - name: Install additional dependencies
+        run: |
+          apt-get install -y \
+            python3-pip python3-polib python3-pil \
+            python3-dotenv python3-pyqt5 python3-opengl xorriso \
+            dolphin-emu xvfb
+          dkp-pacman -Syu --noconfirm
+          dkp-pacman -S --needed --noconfirm \
+            gamecube-sdl2 ppc-liblzma ppc-libzip \
+            gamecube-tools ppc-libmad ppc-zlib-ng ppc-bzip2 ppc-zstd
+      - name: Build Wii ISO and boot it in Dolphin
+        run: ./scripts/test-wii-dolphin.sh
+
+  run-tests-psp-ppsspp:
+    runs-on: ubuntu-latest
+    continue-on-error: true
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      - name: Setup pspdev
+        uses: ./.github/actions/setup-pspdev
+      - name: Install PPSSPPHeadless build dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y git cmake ninja-build libsdl2-dev zlib1g-dev
+      - name: Build PPSSPPHeadless
+        run: |
+          git clone --recursive --depth 1 https://github.com/hrydgard/ppsspp.git /tmp/ppsspp
+          cmake -S /tmp/ppsspp -B /tmp/ppsspp/build -DCMAKE_BUILD_TYPE=Release
+          cmake --build /tmp/ppsspp/build --target PPSSPPHeadless -- -j$(nproc)
+          echo "PPSSPP_HEADLESS_BIN=/tmp/ppsspp/build/PPSSPPHeadless" >> "$GITHUB_ENV"
+      - name: Build PSP EBOOT and boot it in PPSSPPHeadless
+        run: ./scripts/test-psp-ppsspp.sh

CLAUDE.md

@@ -1,432 +0,0 @@
-# Dusk — Claude Code rules
-
-## File headers
-Every C, H, and JS file starts with:
-
-```c
-/**
- * Copyright (c) 2026 Dominic Masters
- *
- * This software is released under the MIT License.
- * https://opensource.org/licenses/MIT
- */
-```
-
-JS files use `//` comment style instead.
-
----
-
-## C conventions
-
-### Types
-Always use the project-defined aliases instead of bare C primitives:
-
-| Use       | Not          |
-|-----------|--------------|
-| `bool_t`  | `bool`       |
-| `int_t`   | `int`        |
-| `float_t` | `float`      |
-| `char_t`  | `char`       |
-
-Use `uint8_t`, `uint16_t`, `int32_t`, etc. for fixed-width integers.
-All struct and enum types end in `_t` (`animation_t`, `errorret_t`, …).
-
-### Naming
-- **Functions** — snake_case, prefixed with their module:
-  `assetLock()`, `entityPositionInit()`, `moduleAssetBatchCtor()`
-- **Struct fields** — camelCase: `keyframeCount`, `localPosition`
-- **Macros / constants** — UPPER_SNAKE_CASE:
-  `ENTITY_ID_INVALID`, `ERROR_OK`, `COMPONENT_TYPE_COUNT`
-- **Files** — snake_case matching the primary type: `entityposition.c`,
-  `moduleassetbatch.c`
-
-### Header files (`.h`)
-- Use `#pragma once` — no include guards.
-- Declare every public function, `#define`, and `extern` global.
-- Write a JSDoc block (`/** … */`) above every declaration explaining
-  purpose, `@param`s, and `@returns`.
-- Only include headers that the `.h` file itself strictly requires for
-  the types it exposes. Move everything else to the `.c` file.
-  Do not use forward declarations as a workaround — use the real
-  include in the `.c` file instead.
-
-### Implementation files (`.c`)
-- Contain function bodies only; no declarations.
-- Pull in whatever additional includes the implementation needs.
-- Do not use `static` or `inline` on **functions**. Every function,
-  including internal helpers, must be declared in the matching `.h` and
-  defined in the `.c` file. Internal helpers belong near the bottom of
-  the `.c` file, not at the top with a `static` qualifier.
-  `static` and `inline` on functions are only appropriate when the
-  function body is written directly inside a `.h` file.
-  `static` on **variables** (file-scope state) is fine and expected.
-
-### Formatting
-- Hard-wrap all lines at **80 characters**.
-
-### Error handling
-Return `errorret_t` from fallible functions. Use these macros:
-
-```c
-errorOk();                    // return success
-errorThrow("msg %d", val);    // return failure with message
-errorChain(someCall());       // propagate failure, continue on success
-errorIsOk(ret) / errorIsNotOk(ret)  // test a result
-errorCatch(ret);              // handle + free an error
-```
-
-Never return raw error codes or use `errno` for in-engine errors.
-
-### Memory
-Use the project allocator — never raw `malloc`/`free`:
-
-```c
-memoryAllocate(size)          // allocate
-memoryFree(ptr)               // free
-memoryZero(dest, size)        // zero a block
-memoryCopy(dest, src, size)   // copy
-```
-
-### Asserts
-Prefer specific assert macros over bare `assert()`:
-
-```c
-assertNotNull(ptr, "msg");
-assertTrue(cond, "msg");
-assertFalse(cond, "msg");
-assertUnreachable("msg");
-assertIsMainThread("msg");
-```
-
----
-
-## Build system
-Each subdirectory has its own `CMakeLists.txt` that adds sources with:
-
-```cmake
-target_sources(${DUSK_LIBRARY_TARGET_NAME}
-  PUBLIC
-    myfile.c
-)
-```
-
-Never add source files to the root `CMakeLists.txt` directly.
-
----
-
-## Platform support
-
-### Targets
-Set `DUSK_TARGET_SYSTEM` at CMake configure time to select a platform:
-
-| `DUSK_TARGET_SYSTEM` | Macro defined     | Platform         |
-|----------------------|-------------------|------------------|
-| `linux`              | `DUSK_LINUX`      | Linux desktop    |
-| `knulli`             | `DUSK_KNULLI`     | Knulli (handheld)|
-| `psp`                | `DUSK_PSP`        | Sony PSP         |
-| `vita`               | `DUSK_VITA`       | PlayStation Vita |
-| `gamecube`           | `DUSK_GAMECUBE`   | Nintendo GameCube|
-| `wii`                | `DUSK_WII`        | Nintendo Wii     |
-
-### Layer structure
-```
-src/dusk/          core, platform-agnostic game logic
-src/duskgl/        OpenGL abstraction (Linux, Knulli, PSP, Vita)
-src/dusksdl2/      SDL2 window + input (Linux, Knulli, PSP, Vita)
-src/dusklinux/     Linux + Knulli platform impl
-src/duskpsp/       PSP platform impl
-src/duskvita/      Vita platform impl
-src/duskdolphin/   GameCube / Wii platform impl (no SDL2/OpenGL)
-```
-
-Dolphin is the only target that bypasses SDL2 and OpenGL entirely —
-it uses native GameCube/Wii rendering and input APIs.
-
-### Platform guards
-Use the compile-time macros for platform-specific code:
-
-```c
-#ifdef DUSK_PSP
-  // PSP-only path
-#elif defined(DUSK_GAMECUBE) || defined(DUSK_WII)
-  // GameCube / Wii path
-#else
-  // Generic / Linux fallback
-#endif
-```
-
-Additional capability macros set per-target:
-`DUSK_SDL2`, `DUSK_OPENGL`, `DUSK_OPENGL_ES`, `DUSK_OPENGL_LEGACY`,
-`DUSK_INPUT_GAMEPAD`, `DUSK_INPUT_KEYBOARD`, `DUSK_INPUT_POINTER`,
-`DUSK_PLATFORM_ENDIAN_BIG` / `DUSK_PLATFORM_ENDIAN_LITTLE`.
-
-### Abstraction pattern
-Platform-specific implementations are wired in via `#define` macros in
-each platform's `displayplatform.h` / `inputplatform.h` etc., which
-the core calls through. Functions that a platform does not support are
-simply left undefined — the core guards calls with `#ifdef`.
-
-### Adding platform-specific code
-- Put it under `src/dusk<platform>/` in the matching subsystem folder.
-- Gate any core call-site with the appropriate `#ifdef DUSK_<PLATFORM>`
-  or capability macro.
-- Keep the `src/dusk/` core free of platform ifdefs — delegate through
-  the platform header macros instead.
-
----
-
-## Adding a new asset loader type
-1. Add an enum value to `assetloadertype_t` (before `_COUNT`) in
-   `src/dusk/asset/loader/assetloader.h`.
-2. Add fields to the input/loading/output unions in `assetloader.h`.
-3. Implement `assetXxxLoaderSync`, `assetXxxLoaderAsync`, and
-   `assetXxxDispose` in a new `src/dusk/asset/loader/xxx/` directory.
-4. Register the three callbacks in `ASSET_LOADER_CALLBACKS[]` in
-   `src/dusk/asset/loader/assetloader.c`.
-5. If user-facing, create a JS module (see below) and a `.d.ts` file.
-
----
-
-## Adding a new entity component
-1. Create `src/dusk/entity/component/<category>/entityMyComp.h/.c` with
-   struct `entityMyComp_t`, `entityMyCompInit()`, and optionally
-   `entityMyCompDispose()`.
-2. Add the include to `src/dusk/entity/componentlist.h` header block.
-3. Add a row to `src/dusk/entity/componentlist.h`:
-   ```c
-   X(MYCOMP, entityMyComp_t, myComp, entityMyCompInit, NULL, NULL)
-   ```
-   This auto-generates the enum, union field, and definition entry.
-4. If JS-facing, create the script module and `.d.ts` (see below).
-
----
-
-## Adding a new script (JS) module
-1. Create `src/dusk/script/module/<category>/moduleMyMod.h/.c`.
-   - Declare `extern scriptproto_t MODULE_MYMOD_PROTO;` in the header.
-   - Use `moduleBaseFunction(name)` to define JS-callable functions.
-   - Register props/funcs in `moduleMyModInit()` with
-     `scriptProtoDefineProp` / `scriptProtoDefineFunc` /
-     `scriptProtoDefineStaticFunc`.
-2. `#include` the header in
-   `src/dusk/script/module/modulelist.c` and call
-   `moduleMyModInit()` in `moduleListInit()` (and `Dispose` in
-   `moduleListDispose()`).
-3. For component modules also register in
-   `src/dusk/script/module/entity/component/modulecomponentlist.c`
-   so `entity.add()` returns the typed wrapper.
-4. Create `types/<category>/mymod.d.ts` and add a
-   `/// <reference path="..." />` line to `types/index.d.ts`.
-
----
-
-## Script module type declarations
-Whenever a `src/dusk/script/module/**/*.c` file is created or modified,
-check whether the corresponding `types/**/*.d.ts` needs updating and
-apply any changes before finishing the task.
-
----
-
-## JavaScript (asset scripts)
-- Use `var` for module-level state; `const` for values that never
-  change.
-- Always use semicolons.
-- Scene objects are plain objects (`var scene = {}`) with assigned
-  methods.
-- Export via `module.exports = scene`.
-- Async scene init should use `async function` and `await`.
-
----
-
-## Coding style
-
-### ASCII only
-Source files (`.c`, `.h`, `.js`) must contain only ASCII characters (U+0000–U+007F).
-Non-ASCII characters are banned even in comments and string literals.
-Use ASCII-only substitutes instead:
-- `--` or `-` instead of `—` (em dash)
-- `->` instead of `→` (arrow)
-- `x` or `*` instead of `×` (multiplication)
-
-Only non-script asset files (e.g. `.po` locale files) may contain non-ASCII text.
-
-### Indentation
-2 spaces. No tabs.
-
-### Keyword and operator spacing
-No space between a keyword or function name and its opening parenthesis:
-
-```c
-if(!ptr) return;
-for(uint8_t i = 0; i < count; i++) {
-while(entry->state != DONE) {
-switch(type) {
-sizeof(assetbatch_t)
-memoryZero(ptr, size)
-```
-
-Spaces around all binary operators and after every comma:
-
-```c
-pos->flags |= ENTITY_POSITION_FLAG_WORLD_DIRTY;
-(size_t)end - (size_t)start
-foo(a, b, c)
-```
-
-### Braces
-Opening brace on the **same line** as the statement (K&R style) for all
-constructs — functions, `if`, `else`, `for`, `while`, `switch`:
-
-```c
-void assetEntryLock(assetentry_t *entry) {
-  ...
-}
-
-if(dirty) {
-  ...
-} else {
-  ...
-}
-```
-
-### Guard returns
-Short guards go on one line with no braces:
-
-```c
-if(!ptr) return;
-if(!b || !b->batch) return jerry_undefined();
-if(!(flags & DIRTY)) return;
-```
-
-### Blank lines
-- One blank line between functions; no blank line at the start or end of
-  a function body.
-- One blank line between logical blocks inside a function body.
-- No trailing blank lines at the end of a file.
-
-### Pointer placement
-`*` is attached to the variable name, not the type:
-
-```c
-assetentry_t *entry
-const char_t *name
-void *ptr
-uint8_t *d = (uint8_t *)dest;
-```
-
-### Casts
-Space between cast and operand:
-
-```c
-(assetbatch_t *)user
-(uint8_t *)dest
-(textureformat_t)v
-```
-
-### Return
-No parentheses around the return value:
-
-```c
-return ptr;
-return MEMORY_POINTERS_IN_USE;
-```
-
-### switch / case
-`case` indented 2 spaces from `switch`; body indented 2 more from `case`:
-
-```c
-switch(type) {
-  case ASSET_LOADER_TYPE_TEXTURE:
-    descs[i].input.texture = (textureformat_t)v;
-    break;
-  default:
-    break;
-}
-```
-
-### Multi-line function signatures
-When parameters don't fit on one line, put each on its own line indented
-2 spaces; the closing `) {` (definition) or `);` (declaration) goes on
-its own line at column 0:
-
-```c
-void assetEntryInit(
-  assetentry_t *entry,
-  const char_t *name,
-  const assetloadertype_t type,
-  assetloaderinput_t *input
-) {
-
-errorret_t memoryCompare(
-  const void *a,
-  const void *b,
-  const size_t size
-);
-```
-
-### Structs and enums
-Anonymous inner struct or enum with a `typedef`, `_t` suffix, closing
-brace and name on the same line:
-
-```c
-typedef struct {
-  errorcode_t code;
-  char_t *message;
-} errorstate_t;
-
-typedef enum {
-  ASSET_LOADER_TYPE_NULL,
-  ASSET_LOADER_TYPE_COUNT
-} assetloadertype_t;
-```
-
-### Designated initialisers
-Spaces inside braces; `.field = value`:
-
-```c
-jsassetentry_t e = { .entry = entry };
-assetbatchloadedpend_t init = { .batch = batch };
-```
-
-### Ternary operator
-Spaces around `?` and `:`:
-
-```c
-const float val = psx > 0.0f ? pt[0][0] / psx : 0.0f;
-```
-
-### const placement
-`const` before the type, `*` attached to the variable:
-
-```c
-const char_t *name
-const void *src
-const size_t size
-```
-
-### Comments in `.c` files
-- Do not use section dividers (`/* ---- ... ---- */`). Just let the
-  functions follow one another with a single blank line between them.
-- Multi-line explanatory comments inside function bodies use `//` lines:
-  ```c
-  // Script modules are freed; orphaned JS wrapper objects now get GC'd
-  // so their finalizers fire before assetDispose() checks ref counts.
-  jerry_heap_gc(JERRY_GC_PRESSURE_HIGH);
-  ```
-- Do not use `/* */` for inline or inline-block comments inside `.c`
-  function bodies.
-
-### Comments in `.h` files
-Every public declaration gets a Javadoc block (`/** … */`) with
-`@param` and `@returns` where relevant. Keep it on the lines immediately
-above the declaration with no blank line in between.
-
----
-
-## Tests
-- Tests live in `test/` mirroring `src/dusk/` structure.
-- Use cmocka; include `dusktest.h`.
-- Test functions: `static void test_something(void **state)`.
-- After each test, assert `memoryGetAllocatedCount() == 0` to catch
-  leaks.
-- Build with `-DDUSK_BUILD_TESTS=ON`.

CMakeLists.txt

@@ -13,10 +13,10 @@ cmake_policy(SET CMP0079 NEW)
 # set(FETCHCONTENT_UPDATES_DISCONNECTED ON)
 
 option(DUSK_BUILD_TESTS "Enable tests" OFF)
+option(DUSK_NETWORKING "Enable networking support" OFF)
 
-# Game identity — override these per-project
 set(DUSK_GAME_NAME "Dusk" CACHE STRING "Game display name")
-set(DUSK_GAME_AUTHOR            "YouWish"             CACHE STRING "Game author / coder")
+set(DUSK_GAME_AUTHOR "YourWishes" CACHE STRING "Game author / coder")
 set(DUSK_GAME_SHORT_DESCRIPTION "Dusk game" CACHE STRING "One-line description")
 set(DUSK_GAME_LONG_DESCRIPTION  "No description yet." CACHE STRING "Full description")
 
@@ -91,6 +91,12 @@ target_compile_definitions(${DUSK_LIBRARY_TARGET_NAME}
     DUSK_VERSION="${DUSK_VERSION}"
 )
 
+if(DUSK_NETWORKING)
+  target_compile_definitions(${DUSK_LIBRARY_TARGET_NAME} PUBLIC
+    DUSK_NETWORKING
+  )
+endif()
+
 # Toolchains
 include(cmake/targets/${DUSK_TARGET_SYSTEM}.cmake)
 
@@ -117,7 +123,11 @@ if(DUSK_BUILD_TESTS)
 endif()
 
 # Build assets
-file(GLOB_RECURSE DUSK_ASSET_FILES CONFIGURE_DEPENDS "${DUSK_ASSETS_DIR}/*")
+# Deliberately not CONFIGURE_DEPENDS: that reruns the full CMake configure
+# step (which invalidates generated headers and forces a huge rebuild) on
+# every single asset edit. Re-run cmake manually when assets are added or
+# removed.
+file(GLOB_RECURSE DUSK_ASSET_FILES "${DUSK_ASSETS_DIR}/*")
 add_custom_command(
   OUTPUT "${DUSK_ASSETS_ZIP}"
   COMMAND ${CMAKE_COMMAND} -E make_directory "${DUSK_ASSETS_DIR}"

archive/asset/args.py

@@ -1,12 +0,0 @@
-import sys, os
-import argparse
-
-# Check if the script is run with the correct arguments
-parser = argparse.ArgumentParser(description="Generate chunk header files")
-parser.add_argument('--assets', required=True, help='Dir to output built assets')
-parser.add_argument('--headers-dir', required=True, help='Directory to output individual asset headers (required for header build)')
-parser.add_argument('--output-headers', help='Output header file for built assets (required for header build)')
-parser.add_argument('--output-assets', required=True, help='Output directory for built assets')
-parser.add_argument('--output-file', required=True, help='Output file for built assets (required for wad build)')
-parser.add_argument('--input', required=True, help='Input assets to process', nargs='+')
-args = parser.parse_args()

archive/asset/bundle/__main__.py

@@ -1,66 +0,0 @@
-import sys, os
-from tools.asset.args import args
-from tools.asset.process.asset import processAsset
-from tools.asset.process.palette import processPaletteList
-from tools.asset.process.tileset import processTilesetList
-from tools.asset.process.language import processLanguageList
-from tools.asset.path import getBuiltAssetsRelativePath
-import zipfile
-
-# Parse input file args.
-inputAssets = []
-for inputArg in args.input:
-  files = inputArg.split('$')
-  for file in files:
-    if str(file).strip() == '':
-      continue
-    
-    pieces = file.split('#')
-
-    if len(pieces) < 2:
-      print(f"Error: Invalid input asset format '{file}'. Expected format: type#path[#option1%option2...]")
-      sys.exit(1)
-
-    options = {}
-    if len(pieces) > 2:
-      optionParts = pieces[2].split('%')
-      for part in optionParts:
-        partSplit = part.split('=')
-
-        if len(partSplit) < 1:
-          continue
-        if len(partSplit) == 2:
-          options[partSplit[0]] = partSplit[1]
-        else:
-          options[partSplit[0]] = True
-    
-    inputAssets.append({
-      'type': pieces[0],
-      'path': pieces[1],
-      'options': options
-    })
-
-if not inputAssets:
-  print("Error: No input assets provided.")
-  sys.exit(1)
-
-# Process each asset.
-files = []
-for asset in inputAssets:
-  asset = processAsset(asset)
-  files.extend(asset['files'])
-
-# Generate additional files
-files.extend(processLanguageList()['files'])
-
-# Take assets and add to a zip archive.
-outputFileName = args.output_file
-print(f"Creating output file: {outputFileName}")
-with zipfile.ZipFile(outputFileName, 'w') as zipf:
-  for file in files:
-    relativeOutputPath = getBuiltAssetsRelativePath(file)
-    zipf.write(file, arcname=relativeOutputPath)
-
-# Generate additional headers.
-processPaletteList()
-processTilesetList()

archive/asset/cache.py

@@ -1,12 +0,0 @@
-processedAssets = {}
-
-def assetGetCache(assetPath):
-  if assetPath in processedAssets:
-    return processedAssets[assetPath]
-  return None
-
-def assetCache(assetPath, processedData):
-  if assetPath in processedAssets:
-    return processedAssets[assetPath]
-  processedAssets[assetPath] = processedData
-  return processedData

archive/asset/path.py

@@ -1,10 +0,0 @@
-import os
-from tools.asset.args import args
-
-def getAssetRelativePath(fullPath):
-  # Get the relative path to the asset
-  return os.path.relpath(fullPath, start=args.assets).replace('\\', '/')
-
-def getBuiltAssetsRelativePath(fullPath):
-  # Get the relative path to the built asset
-  return os.path.relpath(fullPath, start=args.output_assets).replace('\\', '/')

archive/asset/process/asset.py

@@ -1,33 +0,0 @@
-import sys
-# from processtileset import processTileset
-from tools.asset.process.image import processImage
-from tools.asset.process.palette import processPalette
-from tools.asset.process.tileset import processTileset
-from tools.asset.process.map import processMap
-from tools.asset.process.language import processLanguage
-from tools.asset.process.script import processScript
-
-processedAssets = []
-
-def processAsset(asset):
-  if asset['path'] in processedAssets:
-    return
-  processedAssets.append(asset['path'])
-
-  # Handle tiled tilesets
-  t = asset['type'].lower()
-  if t == 'palette':
-    return processPalette(asset)
-  elif t == 'image':
-    return processImage(asset)
-  elif t == 'tileset':
-    return processTileset(asset)
-  elif t == 'map':
-    return processMap(asset)
-  elif t == 'language':
-    return processLanguage(asset)
-  elif t == 'script':
-    return processScript(asset)
-  else:
-    print(f"Error: Unknown asset type '{asset['type']}' for path '{asset['path']}'")
-    sys.exit(1)

archive/asset/process/image.py

@@ -1,134 +0,0 @@
-import os
-import sys
-from PIL import Image
-from tools.asset.process.palette import extractPaletteFromImage, palettes
-from tools.asset.args import args
-from tools.asset.path import getAssetRelativePath
-from tools.asset.cache import assetGetCache, assetCache
-
-images = []
-
-def processImage(asset):
-  cache = assetGetCache(asset['path'])
-  if cache is not None:
-    return cache
-
-  type = None
-  if 'type' in asset['options']:
-    type = asset['options'].get('type', 'PALETTIZED').upper()
-
-  if type == 'PALETTIZED' or type is None:
-    return assetCache(asset['path'], processPalettizedImage(asset))
-  elif type == 'ALPHA':
-    return assetCache(asset['path'], processAlphaImage(asset))
-  else:
-    print(f"Error: Unknown image type {type} for asset {asset['path']}")
-    sys.exit(1)
-
-def processPalettizedImage(asset):
-  assetPath = asset['path']
-  cache = assetGetCache(assetPath)
-  if cache is not None:
-    return cache
-
-  image = Image.open(assetPath)
-  imagePalette = extractPaletteFromImage(image)
-
-  # Find palette that contains every color
-  palette = None
-  for p in palettes:
-    hasAllColors = True
-    for color in imagePalette:
-      for palColor in p['pixels']:
-        if color[0] == palColor[0] and color[1] == palColor[1] and color[2] == palColor[2] and color[3] == palColor[3]:
-          break
-        elif color[3] == 0 and palColor[3] == 0:
-          break
-      else:
-        print('Pallete {} does not contain color #{}'.format(p['paletteName'], '{:02x}{:02x}{:02x}{:02x}'.format(color[0], color[1], color[2], color[3])))
-        hasAllColors = False
-        break
-    if hasAllColors:
-      palette = p
-      break
-    
-  if palette is None:
-    palette = palettes[0]  # Just to avoid reference error
-    print(f"No matching palette found for {assetPath}!")
-    # Find which pixel is missing
-    for color in imagePalette:
-      if color in palette['pixels']:
-        continue
-      # Convert to hex (with alpha)
-      hexColor = '#{:02x}{:02x}{:02x}{:02x}'.format(color[0], color[1], color[2], color[3])
-      print(f"Missing color: {hexColor} in palette {palette['paletteName']}")
-    sys.exit(1)
-  
-  print(f"Converting image {assetPath} to use palette")
-  
-  paletteIndexes = []
-  for pixel in list(image.getdata()):
-    if pixel[3] == 0:
-      pixel = (0, 0, 0, 0)
-    paletteIndex = palette['pixels'].index(pixel)
-    paletteIndexes.append(paletteIndex)
-  
-  data = bytearray()
-  data.extend(b"DPI")  # Dusk Palettized Image
-  data.extend(image.width.to_bytes(4, 'little'))   # Width
-  data.extend(image.height.to_bytes(4, 'little'))  # Height
-  data.append(palette['paletteIndex'])   # Palette index
-  for paletteIndex in paletteIndexes:
-    if paletteIndex > 255 or paletteIndex < 0:
-      print(f"Error: Palette index {paletteIndex} exceeds 255!")
-      sys.exit(1)
-    data.append(paletteIndex.to_bytes(1, 'little')[0])  # Pixel index
-
-  relative = getAssetRelativePath(assetPath)
-  fileNameWithoutExt = os.path.splitext(os.path.basename(assetPath))[0]
-  outputFileRelative = os.path.join(os.path.dirname(relative), f"{fileNameWithoutExt}.dpi")
-  outputFilePath = os.path.join(args.output_assets, outputFileRelative)
-  os.makedirs(os.path.dirname(outputFilePath), exist_ok=True)
-  with open(outputFilePath, "wb") as f:
-    f.write(data)
-
-  outImage = {
-    "imagePath": outputFileRelative,
-    "files": [ outputFilePath ],
-    'width': image.width,
-    'height': image.height,
-  }
-  return assetCache(assetPath, outImage)
-
-def processAlphaImage(asset):
-  assetPath = asset['path']
-  cache = assetGetCache(assetPath)
-  if cache is not None:
-    return cache
-
-  print(f"Processing alpha image: {assetPath}")
-
-  data = bytearray()
-  data.extend(b"DAI")  # Dusk Alpha Image
-  image = Image.open(assetPath).convert("RGBA")
-  data.extend(image.width.to_bytes(4, 'little'))   # Width
-  data.extend(image.height.to_bytes(4, 'little'))  # Height
-  for pixel in list(image.getdata()):
-    # Only write alpha channel
-    data.append(pixel[3].to_bytes(1, 'little')[0])  # Pixel alpha
-
-  relative = getAssetRelativePath(assetPath)
-  fileNameWithoutExt = os.path.splitext(os.path.basename(assetPath))[0]
-  outputFileRelative = os.path.join(os.path.dirname(relative), f"{fileNameWithoutExt}.dai")
-  outputFilePath = os.path.join(args.output_assets, outputFileRelative)
-  os.makedirs(os.path.dirname(outputFilePath), exist_ok=True)
-  with open(outputFilePath, "wb") as f:
-    f.write(data)
-
-  outImage = {
-    "imagePath": outputFileRelative,
-    "files": [ outputFilePath ],
-    'width': image.width,
-    'height': image.height,
-  }
-  return assetCache(assetPath, outImage)

archive/asset/process/language.py

@@ -1,228 +0,0 @@
-import sys
-import os
-from tools.asset.args import args
-from tools.asset.cache import assetCache, assetGetCache
-from tools.asset.path import getAssetRelativePath
-from tools.dusk.defs import defs
-import polib
-import re
-
-LANGUAGE_CHUNK_CHAR_COUNT = int(defs.get('ASSET_LANG_CHUNK_CHAR_COUNT'))
-
-LANGUAGE_DATA = {}
-LANGUAGE_KEYS = []
-
-def processLanguageList():
-  # Language keys header data
-  headerKeys = "// Auto-generated language keys header file.\n"
-  headerKeys += "#pragma once\n"
-  headerKeys += "#include \"dusk.h\"\n\n"
-
-  # This is the desired chunk groups list.. if a language key STARTS with any
-  # of the keys in this list we would "like to" put it in that chunk group.
-  # If there is no match, or the list is full then we will add it to the next
-  # available chunk group (that isn't a 'desired' one). If the chunk becomes
-  # full, then we attempt to make another chunk with the same prefix so that
-  # a second batching can occur.
-  desiredChunkGroups = {
-    'ui': 0
-  }
-
-  # Now, for each language key, create the header reference and index.
-  keyIndex = 0
-  languageKeyIndexes = {}
-  languageKeyChunk = {}
-  languageKeyChunkIndexes = {}
-  languageKeyChunkOffsets = {}
-  for key in LANGUAGE_KEYS:
-    headerKeys += f"#define {getLanguageVariableName(key)} {keyIndex}\n"
-    languageKeyIndexes[key] = keyIndex
-    keyIndex += 1
-
-    # Find desired chunk group
-    assignedChunk = None
-    for desiredKey in desiredChunkGroups:
-      if key.lower().startswith(desiredKey):
-        assignedChunk = desiredChunkGroups[desiredKey]
-        break
-    # If no desired chunk group matched, assign to -1
-    if assignedChunk is None:
-      assignedChunk = -1
-    languageKeyChunk[key] = assignedChunk
-
-    # Setup header.
-    for lang in LANGUAGE_DATA:
-      if key not in LANGUAGE_DATA[lang]:
-        print(f"Warning: Missing translation for key '{key}' in language '{lang}'")
-        sys.exit(1)
-
-  # Seal the header.
-  headerKeys += f"\n#define LANG_KEY_COUNT {len(LANGUAGE_KEYS)}\n"
-
-  # Now we can generate the language string chunks.
-  nextChunkIndex = max(desiredChunkGroups.values()) + 1
-  files = []
-
-  for lang in LANGUAGE_DATA:
-    langData = LANGUAGE_DATA[lang]
-
-    # Key = chunkIndex, value = chunkInfo
-    languageChunks = {}
-    for key in LANGUAGE_KEYS:
-      keyIndex = languageKeyIndexes[key]
-      chunkIndex = languageKeyChunk[key]
-      wasSetChunk = chunkIndex != -1
-
-      # This will keep looping until we find a chunk
-      while True:
-        # Determine the next chunkIndex IF chunkIndex is -1
-        if chunkIndex == -1:
-          chunkIndex = nextChunkIndex
-        
-        # Is the chunk full?
-        curLen = languageChunks.get(chunkIndex, {'len': 0})['len']
-        newLen = curLen + len(langData[key])
-        if newLen > LANGUAGE_CHUNK_CHAR_COUNT:
-          # Chunk is full, need to create a new chunk.
-          chunkIndex = -1
-          if wasSetChunk:
-            wasSetChunk = False
-          else:
-            nextChunkIndex += 1
-          continue
-
-        # Chunk is not full, we can use it.
-        if chunkIndex not in languageChunks:
-          languageChunks[chunkIndex] = {
-            'len': 0,
-            'keys': []
-          }
-        languageChunks[chunkIndex]['len'] = newLen
-        languageChunks[chunkIndex]['keys'].append(key)
-        languageKeyChunkIndexes[key] = chunkIndex
-        languageKeyChunkOffsets[key] = curLen
-        break
-
-    # We have now chunked all the keys for this language!
-    langBuffer = b""
-
-    # Write header info 
-    langBuffer += b'DLF'  # Dusk Language File
-
-    for key in LANGUAGE_KEYS:
-      # Write the chunk that this key belongs to as uint32_t
-      chunkIndex = languageKeyChunkIndexes[key]
-      langBuffer += chunkIndex.to_bytes(4, byteorder='little')
-
-      # Write the offset for this key as uint32_t
-      offset = languageKeyChunkOffsets[key]
-      langBuffer += offset.to_bytes(4, byteorder='little')
-
-      # Write the length of the string as uint32_t
-      strData = langData[key].encode('utf-8')
-      langBuffer += len(strData).to_bytes(4, byteorder='little')
-    
-    # Now write out each chunk's string data, packed tight and no null term.
-    for chunkIndex in sorted(languageChunks.keys()):
-      chunkInfo = languageChunks[chunkIndex]
-      for key in chunkInfo['keys']:
-        strData = langData[key].encode('utf-8')
-        langBuffer += strData
-
-      # Now pad the chunk to full size
-      curLen = chunkInfo['len']
-      if curLen < LANGUAGE_CHUNK_CHAR_COUNT:
-        padSize = LANGUAGE_CHUNK_CHAR_COUNT - curLen
-        langBuffer += b'\0' * padSize
-
-    # Write out the language data file
-    outputFile = os.path.join(args.output_assets, "language", f"{lang}.dlf")
-    files.append(outputFile)
-    os.makedirs(os.path.dirname(outputFile), exist_ok=True)
-    with open(outputFile, "wb") as f:
-      f.write(langBuffer)
-  
-  # Write out the language keys header file
-  outputFile = os.path.join(args.headers_dir, "locale", "language", "keys.h")
-  os.makedirs(os.path.dirname(outputFile), exist_ok=True)
-  with open(outputFile, "w") as f:
-    f.write(headerKeys)
-
-  # Generate language list.
-  langValues = {}
-  headerLocale = "#pragma once\n#include \"locale/localeinfo.h\"\n\n"
-  headerLocale += "typedef enum {\n"
-  count = 0
-  headerLocale += f"  DUSK_LOCALE_NULL = {count},\n"
-  count += 1
-  for lang in LANGUAGE_DATA:
-    langKey = lang.replace('-', '_').replace(' ', '_').upper()
-    langValues[lang] = count
-    headerLocale += f"  DUSK_LOCALE_{langKey} = {count},\n"
-    count += 1
-  headerLocale += f"  DUSK_LOCALE_COUNT = {count}\n"
-  headerLocale += "} dusklocale_t;\n\n"
-  
-  headerLocale += f"static const localeinfo_t LOCALE_INFOS[DUSK_LOCALE_COUNT] = {{\n"
-  for lang in LANGUAGE_DATA:
-    langKey = lang.replace('-', '_').replace(' ', '_').upper()
-    headerLocale += f"  [DUSK_LOCALE_{langKey}] = {{\n"
-    headerLocale += f"    .file = \"{lang}\"\n"
-    headerLocale += f"  }},\n"
-  headerLocale += "};\n"
-
-  headerLocale += f"static const char_t *LOCALE_SCRIPT = \n"
-  for lang in LANGUAGE_DATA:
-    langKey = lang.replace('-', '_').replace(' ', '_').upper()
-    langValue = langValues[lang]
-    headerLocale += f"  \"DUSK_LOCALE_{langKey} = {langValue}\\n\"\n"
-  headerLocale +=  ";\n"
-
-  # Write out the locale enum header file
-  outputFile = os.path.join(args.headers_dir, "locale", "locale.h")
-  os.makedirs(os.path.dirname(outputFile), exist_ok=True)
-  with open(outputFile, "w") as f:
-    f.write(headerLocale)
-
-  return {
-    'files': files
-  }
-
-def getLanguageVariableName(languageKey):
-  # Take the language key, prepend LANG_, uppercase, replace any non symbols
-  # with _
-  key = languageKey.strip().upper()
-  key = re.sub(r'[^A-Z0-9]', '_', key)
-  return f"LANG_{key}"
-
-def processLanguage(asset):
-  cache = assetGetCache(asset['path'])
-  if cache is not None:
-    return cache
-  
-  # Load PO File
-  po = polib.pofile(asset['path'])
-
-  langName = po.metadata.get('Language')
-  if langName not in LANGUAGE_DATA:
-    LANGUAGE_DATA[langName] = {}
-
-  for entry in po:
-    key = entry.msgid
-    val = entry.msgstr
-
-    if key not in LANGUAGE_KEYS:
-      LANGUAGE_KEYS.append(key)
-    
-    if key not in LANGUAGE_DATA[langName]:
-      LANGUAGE_DATA[langName][key] = val
-    else:
-      print(f"Error: Duplicate translation key '{key}' in language '{langName}'")
-      sys.exit(1)
-
-  outLanguageData = {
-    'data': po,
-    'path': asset['path'],
-    'files': []
-  }
-  return assetCache(asset['path'], outLanguageData)

archive/asset/process/map.py

@@ -1,154 +0,0 @@
-import struct
-import sys
-import os
-import json
-from tools.asset.args import args
-from tools.asset.cache import assetCache, assetGetCache
-from tools.asset.path import getAssetRelativePath
-from tools.dusk.defs import TILE_WIDTH, TILE_HEIGHT, TILE_DEPTH, CHUNK_WIDTH, CHUNK_HEIGHT, CHUNK_DEPTH, CHUNK_TILE_COUNT
-from tools.dusk.map import Map
-from tools.dusk.chunk import Chunk
-
-def convertModelData(modelData):
-  # TLDR; Model data stores things efficiently with indices, but we buffer it 
-  # out to 6 vertex quads for simplicity.
-  outVertices = []
-  outUVs = []
-  outColors = []
-  for indice in modelData['indices']:
-    vertex = modelData['vertices'][indice]
-    uv = modelData['uvs'][indice]
-    color = modelData['colors'][indice]
-    outVertices.append(vertex)
-    outUVs.append(uv)
-    outColors.append(color)
-
-  return {
-    'vertices': outVertices,
-    'uvs': outUVs,
-    'colors': outColors
-  }
-
-def processChunk(chunk):
-  cache = assetGetCache(chunk.getFilename())
-  if cache:
-    return cache
-
-  baseModel = {
-    'vertices': [],
-    'colors': [],
-    'uvs': []
-  }
-  models = [ baseModel ]
-
-  for tileIndex, tile in chunk.tiles.items():
-    tileBase = tile.getBaseTileModel()
-
-    convertedBase = convertModelData(tileBase)
-    baseModel['vertices'].extend(convertedBase['vertices'])
-    baseModel['colors'].extend(convertedBase['colors'])
-    baseModel['uvs'].extend(convertedBase['uvs'])
-
-  # Generate binary buffer for efficient output
-  buffer = bytearray()
-  buffer.extend(b'DMC')# Header
-  buffer.extend(len(chunk.tiles).to_bytes(4, 'little'))  # Number of tiles
-  buffer.extend(len(models).to_bytes(1, 'little'))  # Number of models
-  buffer.extend(len(chunk.entities).to_bytes(1, 'little'))  # Number of entities
-
-  # Buffer tile data as array of uint8_t
-  for tileIndex, tile in chunk.tiles.items():
-    buffer.extend(tile.shape.to_bytes(1, 'little'))
-
-  # # For each model
-  for model in models:
-    vertexCount = len(model['vertices'])
-    buffer.extend(vertexCount.to_bytes(4, 'little'))
-    for i in range(vertexCount):
-      vertex = model['vertices'][i]
-      uv = model['uvs'][i]
-      color = model['colors'][i]
-
-      buffer.extend(color[0].to_bytes(1, 'little'))
-      buffer.extend(color[1].to_bytes(1, 'little'))
-      buffer.extend(color[2].to_bytes(1, 'little'))
-      buffer.extend(color[3].to_bytes(1, 'little'))
-
-      buffer.extend(bytearray(struct.pack('<f', uv[0])))
-      buffer.extend(bytearray(struct.pack('<f', uv[1])))
-
-      buffer.extend(bytearray(struct.pack('<f', vertex[0])))
-      buffer.extend(bytearray(struct.pack('<f', vertex[1])))
-      buffer.extend(bytearray(struct.pack('<f', vertex[2])))
-  
-  # For each entity
-  for entity in chunk.entities.values():
-    buffer.extend(entity.type.to_bytes(1, 'little'))
-    buffer.extend(entity.localX.to_bytes(1, 'little'))
-    buffer.extend(entity.localY.to_bytes(1, 'little'))
-    buffer.extend(entity.localZ.to_bytes(1, 'little'))
-    pass
-
-  # Write out map file
-  relative = getAssetRelativePath(chunk.getFilename())
-  fileNameWithoutExt = os.path.splitext(os.path.basename(relative))[0]
-  outputFileRelative = os.path.join(os.path.dirname(relative), f"{fileNameWithoutExt}.dmc")
-  outputFilePath = os.path.join(args.output_assets, outputFileRelative)
-  os.makedirs(os.path.dirname(outputFilePath), exist_ok=True)
-  with open(outputFilePath, "wb") as f:
-    f.write(buffer)
-  
-  outChunk = {
-    'files': [ outputFilePath ],
-    'chunk': chunk
-  }
-  return assetCache(chunk.getFilename(), outChunk)
-
-def processMap(asset):
-  cache = assetGetCache(asset['path'])
-  if cache is not None:
-    return cache
-
-  map = Map(None)
-  map.load(asset['path'])
-  chunksDir = map.getChunkDirectory()
-
-  files = os.listdir(chunksDir)
-  if len(files) == 0:
-    print(f"Error: No chunk files found in {chunksDir}.")
-    sys.exit(1)
-
-  chunkFiles = []
-  for fileName in files:
-    if not fileName.endswith('.json'):
-      continue
-
-    fNameNoExt = os.path.splitext(fileName)[0]
-    fnPieces = fNameNoExt.split('_')
-    if len(fnPieces) != 3:
-      print(f"Error: Chunk filename {fileName} does not contain valid chunk coordinates.")
-      sys.exit(1)
-    chunk = Chunk(map, int(fnPieces[0]), int(fnPieces[1]), int(fnPieces[2]))
-    chunk.load()
-    result = processChunk(chunk)
-    chunkFiles.extend(result['files'])
-
-  # Map file
-  outBuffer = bytearray()
-  outBuffer.extend(b'DMF')
-  outBuffer.extend(len(chunkFiles).to_bytes(4, 'little'))
-  
-  # DMF (Dusk Map file)
-  fileRelative = getAssetRelativePath(asset['path'])
-  fileNameWithoutExt = os.path.splitext(os.path.basename(fileRelative))[0]
-  outputMapRelative = os.path.join(os.path.dirname(fileRelative), f"{fileNameWithoutExt}.dmf")
-  outputMapPath = os.path.join(args.output_assets, outputMapRelative)
-  os.makedirs(os.path.dirname(outputMapPath), exist_ok=True)
-  with open(outputMapPath, "wb") as f:
-    f.write(outBuffer)
-
-  outMap = {
-    'files': chunkFiles
-  }
-  outMap['files'].append(outputMapPath)
-  return assetCache(asset['path'], outMap)

archive/asset/process/palette.py

@@ -1,96 +0,0 @@
-import json
-import os
-from PIL import Image
-import datetime
-from tools.asset.args import args
-from tools.asset.cache import assetCache, assetGetCache
-
-palettes = []
-
-def extractPaletteFromImage(image):
-  # goes through and finds all unique colors in the image
-  if image.mode != 'RGBA':
-    image = image.convert('RGBA')
-  pixels = list(image.getdata())
-  uniqueColors = []
-  for color in pixels:
-    # We treat all alpha 0 as rgba(0,0,0,0) for palette purposes
-    if color[3] == 0:
-      color = (0, 0, 0, 0)
-    if color not in uniqueColors:
-      uniqueColors.append(color)
-  return uniqueColors
-
-def processPalette(asset):
-  print(f"Processing palette: {asset['path']}")
-  cache = assetGetCache(asset['path'])
-  if cache is not None:
-    return cache
-
-  paletteIndex = len(palettes)
-  image = Image.open(asset['path'])
-  pixels = extractPaletteFromImage(image)
-
-  fileNameWithoutExt = os.path.splitext(os.path.basename(asset['path']))[0]
-  fileNameWithoutPalette = os.path.splitext(fileNameWithoutExt)[0]
-
-  # PSP requires that the palette size be a power of two, so we will pad the
-  # palette with transparent colors if needed.
-  def mathNextPowTwo(x):
-    return 1 << (x - 1).bit_length()
-  
-  nextPowTwo = mathNextPowTwo(len(pixels))
-  while len(pixels) < nextPowTwo:
-    pixels.append((0, 0, 0, 0))
-
-  # Header
-  now = datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S")
-  data = f"// Palette Generated for {asset['path']} at {now}\n"
-  data += f"#include \"display/palette/palette.h\"\n\n"
-  data += f"#define PALETTE_{paletteIndex}_COLOR_COUNT {len(pixels)}\n\n"
-  data += f"#pragma pack(push, 1)\n"
-  data += f"static const color_t PALETTE_{paletteIndex}_COLORS[PALETTE_{paletteIndex}_COLOR_COUNT] = {{\n"
-  for pixel in pixels:
-    data += f"  {{ 0x{pixel[0]:02X}, 0x{pixel[1]:02X}, 0x{pixel[2]:02X}, 0x{pixel[3]:02X} }},\n"
-  data += f"}};\n"
-  data += f"#pragma pack(pop)\n\n"
-  data += f"static const palette_t PALETTE_{paletteIndex} = {{\n"
-  data += f"  .colorCount = PALETTE_{paletteIndex}_COLOR_COUNT,\n"
-  data += f"  .colors = PALETTE_{paletteIndex}_COLORS,\n"
-  data += f"}};\n"
-
-  # Write Header
-  outputFile = os.path.join(args.headers_dir, "display", "palette", f"palette_{paletteIndex}.h")
-  os.makedirs(os.path.dirname(outputFile), exist_ok=True)
-  with open(outputFile, "w") as f:
-    f.write(data)
-
-  palette = {
-    "paletteIndex": paletteIndex,
-    "paletteName": fileNameWithoutPalette,
-    "pixels": pixels,
-    "headerFile": os.path.relpath(outputFile, args.headers_dir),
-    "asset": asset,
-    "files": [ ],# No zippable files.
-  }
-
-  palettes.append(palette)
-  return assetCache(asset['path'], palette)
-
-def processPaletteList():
-  data = f"// Auto-generated palette list\n"
-  print(f"Generating palette list with {len(palettes)} palettes.")
-  for palette in palettes:
-    data += f"#include \"{palette['headerFile']}\"\n"
-  data += f"\n"
-  data += f"#define PALETTE_LIST_COUNT {len(palettes)}\n\n"
-  data += f"static const palette_t* PALETTE_LIST[PALETTE_LIST_COUNT] = {{\n"
-  for palette in palettes:
-    data += f"  &PALETTE_{palette['paletteIndex']},\n"
-  data += f"}};\n"
-
-  # Write the palette list to a header file
-  outputFile = os.path.join(args.headers_dir, "display", "palette", "palettelist.h")
-  os.makedirs(os.path.dirname(outputFile), exist_ok=True)
-  with open(outputFile, "w") as f:
-    f.write(data)

archive/asset/process/script.py

@@ -1,43 +0,0 @@
-import sys
-import os
-from tools.asset.args import args
-from tools.asset.cache import assetCache, assetGetCache
-from tools.asset.path import getAssetRelativePath
-from tools.dusk.defs import fileDefs
-
-def processScript(asset):
-  cache = assetGetCache(asset['path'])
-  if cache is not None:
-    return cache
-  
-  # Load the lua file as a string
-  with open(asset['path'], 'r', encoding='utf-8') as f:
-    luaCode = f.read()
-    
-  # TODO: I will precompile or minify the Lua code here in the future
-
-  # Replace all definitions in the code
-  for key, val in fileDefs.items():
-    luaCode = luaCode.replace(key, str(val))
-
-  # Create output Dusk Script File (DSF) data
-  data = ""
-  data += "DSF"
-  data += luaCode
-
-  # Write to relative output file path.
-  relative = getAssetRelativePath(asset['path'])
-  fileNameWithoutExt = os.path.splitext(os.path.basename(asset['path']))[0]
-  outputFileRelative = os.path.join(os.path.dirname(relative), f"{fileNameWithoutExt}.dsf")
-  outputFilePath = os.path.join(args.output_assets, outputFileRelative)
-  os.makedirs(os.path.dirname(outputFilePath), exist_ok=True)
-  with open(outputFilePath, "wb") as f:
-    f.write(data.encode('utf-8'))
-
-  outScript = {
-    'data': data,
-    'path': asset['path'],
-    'files': [ outputFilePath ],
-    'scriptPath': outputFileRelative,
-  }
-  return assetCache(asset['path'], outScript)

archive/asset/process/tileset.py

@@ -1,178 +0,0 @@
-import json
-import sys
-import os
-import datetime
-from xml.etree import ElementTree
-from tools.asset.process.image import processImage
-from tools.asset.path import getAssetRelativePath
-from tools.asset.args import args
-from tools.asset.cache import assetGetCache, assetCache
-
-tilesets = []
-
-def loadTilesetFromTSX(asset):
-  # Load the TSX file
-  tree = ElementTree.parse(asset['path'])
-  root = tree.getroot()
-
-  # Expect tileheight, tilewidth, columns and tilecount attributes
-  if 'tilewidth' not in root.attrib or 'tileheight' not in root.attrib or 'columns' not in root.attrib or 'tilecount' not in root.attrib:
-    print(f"Error: TSX file {asset['path']} is missing required attributes (tilewidth, tileheight, columns, tilecount)")
-    sys.exit(1)
-
-  tileWidth = int(root.attrib['tilewidth'])
-  tileHeight = int(root.attrib['tileheight'])
-  columns = int(root.attrib['columns'])
-  tileCount = int(root.attrib['tilecount'])
-  rows = (tileCount + columns - 1) // columns  # Calculate rows based on tileCount and columns
-
-  # Find the image element
-  imageElement = root.find('image')
-  if imageElement is None or 'source' not in imageElement.attrib:
-    print(f"Error: TSX file {asset['path']} is missing an image element with a source attribute")
-    sys.exit(1)
-
-  imagePath = imageElement.attrib['source']
-
-  # Image is relative to the TSX file
-  imageAssetPath = os.path.join(os.path.dirname(asset['path']), imagePath)
-
-  image = processImage({
-    'path': imageAssetPath,
-    'options': asset['options'],
-  })
-
-  return {
-    "image": image,
-    "tileWidth": tileWidth,
-    "tileHeight": tileHeight,
-    "columns": columns,
-    "rows": rows,
-    "originalWidth": tileWidth * columns,
-    "originalHeight": tileHeight * rows,
-  }
-
-def loadTilesetFromArgs(asset):
-  # We need to determine how big each tile is. This can either be provided as
-  # an arg of tileWidth/tileHeight or as a count of rows/columns.
-  # Additionally, if the image has been factored, then the user can provide both
-  # tile sizes AND cols/rows to indicate the original size of the image.
-  image = processImage(asset)
-
-  tileWidth, tileHeight = None, None
-  columns, rows = None, None
-  originalWidth, originalHeight = image['width'], image['height']
-
-  if 'tileWidth' in asset['options'] and 'columns' in asset['options']:
-    tileWidth = int(asset['options']['tileWidth'])
-    columns = int(asset['options']['columns'])
-    originalWidth = tileWidth * columns
-  elif 'tileWidth' in asset['options']:
-    tileWidth = int(asset['options']['tileWidth'])
-    columns = image['width'] // tileWidth
-  elif 'columns' in asset['options']:
-    columns = int(asset['options']['columns'])
-    tileWidth = image['width'] // columns
-  else:
-    print(f"Error: Tileset {asset['path']} must specify either tileWidth or columns")
-    sys.exit(1)
-
-  if 'tileHeight' in asset['options'] and 'rows' in asset['options']:
-    tileHeight = int(asset['options']['tileHeight'])
-    rows = int(asset['options']['rows'])
-    originalHeight = tileHeight * rows
-  elif 'tileHeight' in asset['options']:
-    tileHeight = int(asset['options']['tileHeight'])
-    rows = image['height'] // tileHeight
-  elif 'rows' in asset['options']:
-    rows = int(asset['options']['rows'])
-    tileHeight = image['height'] // rows
-  else:
-    print(f"Error: Tileset {asset['path']} must specify either tileHeight or rows")
-    sys.exit(1)
-    
-  return {
-    "image": image,
-    "tileWidth": tileWidth,
-    "tileHeight": tileHeight,
-    "columns": columns,
-    "rows": rows,
-    "originalWidth": originalWidth,
-    "originalHeight": originalHeight,
-  }
-
-def processTileset(asset):
-  cache = assetGetCache(asset['path'])
-  if cache is not None:
-    return cache
-
-  print(f"Processing tileset: {asset['path']}")
-  tilesetData = None
-  if asset['path'].endswith('.tsx'):
-    tilesetData = loadTilesetFromTSX(asset)
-  else:
-    tilesetData = loadTilesetFromArgs(asset)
-  
-  fileNameWithoutExtension = os.path.splitext(os.path.basename(asset['path']))[0]
-  now = datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S")
-  tilesetName = fileNameWithoutExtension
-  tilesetNameUpper = tilesetName.upper()
-
-  widthScale = tilesetData['originalWidth'] / tilesetData['image']['width']
-  heightScale = tilesetData['originalHeight'] / tilesetData['image']['height']
-
-  # Create header
-  data = f"// Tileset Generated for {asset['path']} at {now}\n"
-  data += f"#pragma once\n"
-  data += f"#include \"display/tileset/tileset.h\"\n\n"
-  data += f"static const tileset_t TILESET_{tilesetNameUpper} = {{\n"
-  data += f"  .name = {json.dumps(tilesetName)},\n"
-  data += f"  .tileWidth = {tilesetData['tileWidth']},\n"
-  data += f"  .tileHeight = {tilesetData['tileHeight']},\n"
-  data += f"  .tileCount = {tilesetData['columns'] * tilesetData['rows']},\n"
-  data += f"  .columns = {tilesetData['columns']},\n"
-  data += f"  .rows = {tilesetData['rows']},\n"
-  data += f"  .uv = {{ {widthScale / tilesetData['columns']}f, {heightScale / tilesetData['rows']}f }},\n"
-  data += f"  .image = {json.dumps(tilesetData['image']['imagePath'])},\n"
-  data += f"}};\n"
-
-
-  # Write Header
-  outputFile = os.path.join(args.headers_dir, "display", "tileset", f"tileset_{tilesetName}.h")
-  os.makedirs(os.path.dirname(outputFile), exist_ok=True)
-  with open(outputFile, 'w') as f:
-    f.write(data)
-
-  print(f"Write header for tileset: {outputFile}")
-
-  tileset = {
-    "files": [],
-    "image": tilesetData['image'],
-    "headerFile": os.path.relpath(outputFile, args.headers_dir),
-    "tilesetName": tilesetName,
-    "tilesetNameUpper": tilesetNameUpper,
-    "tilesetIndex": len(tilesets),
-    "tilesetData": tilesetData,
-    "files": tilesetData['image']['files'],
-  }
-
-  tilesets.append(tileset)
-  return assetCache(asset['path'], tileset)
-
-def processTilesetList():
-  data = f"// Tileset List Generated at {datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S')}\n"
-  data += f"#pragma once\n"
-  for tileset in tilesets:
-    data += f"#include \"{tileset['headerFile']}\"\n"
-  data += f"\n"
-  data += f"#define TILESET_LIST_COUNT {len(tilesets)}\n\n"
-  data += f"static const tileset_t* TILESET_LIST[TILESET_LIST_COUNT] = {{\n"
-  for tileset in tilesets:
-    data += f"  &TILESET_{tileset['tilesetNameUpper']},\n"
-  data += f"}};\n"
-
-  # Write header.
-  outputFile = os.path.join(args.headers_dir, "display", "tileset", f"tilesetlist.h")
-  os.makedirs(os.path.dirname(outputFile), exist_ok=True)
-  with open(outputFile, 'w') as f:
-    f.write(data)

archive/assetpalette.c

@@ -1,47 +0,0 @@
-/**
- * Copyright (c) 2026 Dominic Masters
- * 
- * This software is released under the MIT License.
- * https://opensource.org/licenses/MIT
- */
-
-#include "assetpalette.h"
-#include "asset/assettype.h"
-#include "assert/assert.h"
-
-errorret_t assetPaletteLoad(assetentire_t entire) {
-  assertNotNull(entire.data, "Data pointer cannot be NULL.");
-  assertNotNull(entire.output, "Output pointer cannot be NULL.");
-
-  assetpalette_t *assetData = (assetpalette_t *)entire.data;
-  palette_t *palette = (palette_t *)entire.output;
-
-  // Read header and version (first 4 bytes)
-  if(
-    assetData->header[0] != 'D' || 
-    assetData->header[1] != 'P' ||
-    assetData->header[2] != 'F'
-  ) {
-    errorThrow("Invalid palette header");
-  }
-  
-  // Version (can only be 1 atm)
-  if(assetData->version != 0x01) {
-    errorThrow("Unsupported palette version");
-  }
-
-  // Check color count.
-  if(
-    assetData->colorCount == 0 || 
-    assetData->colorCount > PALETTE_COLOR_COUNT_MAX
-  ) {
-    errorThrow("Invalid palette color count");
-  }
-  
-  paletteInit(
-    palette,
-    assetData->colorCount,
-    assetData->colors
-  );
-  errorOk();
-}

archive/assetpalette.h

@@ -1,30 +0,0 @@
-/**
- * Copyright (c) 2026 Dominic Masters
- * 
- * This software is released under the MIT License.
- * https://opensource.org/licenses/MIT
- */
-
-#pragma once
-#include "error/error.h"
-#include "display/texture/palette.h"
-
-typedef struct assetentire_s assetentire_t;
-
-#pragma pack(push, 1)
-typedef struct {
-  char_t header[3];
-  uint8_t version;
-
-  uint8_t colorCount;
-  color_t colors[PALETTE_COLOR_COUNT_MAX];
-} assetpalette_t;
-#pragma pack(pop)
-
-/**
- * Loads a palette from the given data pointer into the output palette.
- *
- * @param entire Data received from the asset loader system.
- * @return An error code.
- */
-errorret_t assetPaletteLoad(assetentire_t entire);

archive/camera/camera.c

@@ -1,107 +0,0 @@
-/**
- * Copyright (c) 2025 Dominic Masters
- * 
- * This software is released under the MIT License.
- * https://opensource.org/licenses/MIT
- */
-
-#include "camera.h"
-#include "display/display.h"
-#include "assert/assert.h"
-#include "display/framebuffer/framebuffer.h"
-#include "display/screen/screen.h"
-
-void cameraInit(camera_t *camera) {
-  cameraInitPerspective(camera);
-}
-
-void cameraInitPerspective(camera_t *camera) {
-  assertNotNull(camera, "Not a camera component");
-
-  camera->projType = CAMERA_PROJECTION_TYPE_PERSPECTIVE;
-  camera->perspective.fov = glm_rad(45.0f);
-  camera->nearClip = 0.1f;
-  camera->farClip = 10000.0f;
-
-  camera->viewType = CAMERA_VIEW_TYPE_LOOKAT;
-  glm_vec3_copy((vec3){ 5.0f, 5.0f, 5.0f }, camera->lookat.position);
-  glm_vec3_copy((vec3){ 0.0f, 1.0f, 0.0f }, camera->lookat.up);
-  glm_vec3_copy((vec3){ 0.0f, 0.0f, 0.0f }, camera->lookat.target);
-}
-
-void cameraInitOrthographic(camera_t *camera) {
-  assertNotNull(camera, "Not a camera component");
-
-  camera->projType = CAMERA_PROJECTION_TYPE_ORTHOGRAPHIC;
-  camera->orthographic.left = 0.0f;
-  camera->orthographic.right = SCREEN.width;
-  camera->orthographic.top = SCREEN.height;
-  camera->orthographic.bottom = 0.0f;
-  camera->nearClip = 0.1f;
-  camera->farClip = 1.0f;
-
-  camera->viewType = CAMERA_VIEW_TYPE_2D;
-  glm_vec2_copy((vec2){ 0.0f, 0.0f }, camera->_2d.position);
-  camera->_2d.zoom = 1.0f;
-}
-
-void cameraGetProjectionMatrix(camera_t *camera, mat4 dest) {
-  assertNotNull(camera, "Not a camera component");
-  assertNotNull(dest, "Destination matrix must not be null");
-
-  if(
-    camera->projType == CAMERA_PROJECTION_TYPE_PERSPECTIVE ||
-    camera->projType == CAMERA_PROJECTION_TYPE_PERSPECTIVE_FLIPPED
-  ) {
-    glm_mat4_identity(dest);
-    glm_perspective(
-      camera->perspective.fov,
-      SCREEN.aspect,
-      camera->nearClip,
-      camera->farClip,
-      dest
-    );
-
-    if(camera->projType == CAMERA_PROJECTION_TYPE_PERSPECTIVE_FLIPPED) {
-      dest[1][1] *= -1.0f;
-    }
-  } else if(camera->projType == CAMERA_PROJECTION_TYPE_ORTHOGRAPHIC) {
-    glm_mat4_identity(dest);
-    glm_ortho(
-      camera->orthographic.left,
-      camera->orthographic.right,
-      camera->orthographic.top,
-      camera->orthographic.bottom,
-      camera->nearClip,
-      camera->farClip,
-      dest
-    );
-  }
-}
-
-void cameraGetViewMatrix(camera_t *camera, mat4 dest) {
-  assertNotNull(camera, "Not a camera component");
-  assertNotNull(dest, "Destination matrix must not be null");
-
-  if(camera->viewType == CAMERA_VIEW_TYPE_MATRIX) {
-    glm_mat4_ucopy(camera->view, dest);
-  } else if(camera->viewType == CAMERA_VIEW_TYPE_LOOKAT) {
-    glm_mat4_identity(dest);
-    glm_lookat(
-      camera->lookat.position,
-      camera->lookat.target,
-      camera->lookat.up,
-      dest
-    );
-  } else if(camera->viewType == CAMERA_VIEW_TYPE_2D) {
-    glm_mat4_identity(dest);
-    glm_lookat(
-      (vec3){ camera->_2d.position[0], camera->_2d.position[1], 0.5f },
-      (vec3){ camera->_2d.position[0], camera->_2d.position[1], 0.0f },
-      (vec3){ 0.0f, 1.0f, 0.0f },
-      dest
-    );
-  } else if(camera->viewType == CAMERA_VIEW_TYPE_LOOKAT_PIXEL_PERFECT) {
-    assertUnreachable("LOOKAT_PIXEL_PERFECT view type is not implemented yet");
-  }
-}

archive/camera/camera.h

@@ -1,97 +0,0 @@
-/**
- * Copyright (c) 2025 Dominic Masters
- * 
- * This software is released under the MIT License.
- * https://opensource.org/licenses/MIT
- */
-
-#pragma once
-#include "dusk.h"
-#include "display/color.h"
-#include "display/camera/cameraplatform.h"
-
-#ifndef cameraPushMatrixPlatform
-  #error "cameraPushMatrixPlatform must be defined"
-#endif
-
-
-typedef enum {
-  CAMERA_VIEW_TYPE_MATRIX,
-  CAMERA_VIEW_TYPE_LOOKAT,
-  CAMERA_VIEW_TYPE_2D,
-  CAMERA_VIEW_TYPE_LOOKAT_PIXEL_PERFECT
-} cameraviewtype_t;
-
-typedef struct camera_s {
-  union {
-    mat4 view;
-
-    struct {
-      vec3 position;
-      vec3 target;
-      vec3 up;
-    } lookat;
-
-    struct {
-      vec3 offset;
-      vec3 target;
-      vec3 up;
-      float_t pixelsPerUnit;
-    } lookatPixelPerfect;
-
-    struct {
-      vec2 position;
-      float_t zoom;
-    } _2d;
-  };
-
-  union {
-    struct {
-      float_t fov;
-    } perspective;
-
-    struct {
-      float_t left;
-      float_t right;
-      float_t top;
-      float_t bottom;
-    } orthographic;
-  };
-  
-  float_t nearClip;
-  float_t farClip;
-  
-  cameraprojectiontype_t projType;
-  cameraviewtype_t viewType;
-} camera_t;
-
-/**
- * Initializes a camera to default values. This calls cameraInitPerspective.
- */
-void cameraInit(camera_t *camera);
-
-/**
- * Initializes a camera for perspective projection.
- */
-void cameraInitPerspective(camera_t *camera);
-
-/**
- * Initializes a camera for orthographic projection.
- */
-void cameraInitOrthographic(camera_t *camera);
-
-/**
- * Gets the projection matrix for a camera.
- * 
- * @param camera Camera to get the projection matrix for
- * @param dest Matrix to store the projection matrix in
- */
-void cameraGetProjectionMatrix(camera_t *camera, mat4 dest);
-
-/**
- * Gets the view matrix for a camera.
- * 
- * @param camera Camera to get the view matrix for
- * @param dest Matrix to store the view matrix in
- */
-void cameraGetViewMatrix(camera_t *camera, mat4 dest);

archive/dusk/chunk.py

@@ -1,158 +0,0 @@
-import json
-import os
-from tools.dusk.event import Event
-from tools.dusk.defs import CHUNK_WIDTH, CHUNK_HEIGHT, CHUNK_DEPTH, CHUNK_VERTEX_COUNT_MAX, TILE_SHAPE_NULL
-from tools.dusk.tile import Tile
-from tools.dusk.entity import Entity
-from tools.dusk.region import Region
-from tools.editor.map.vertexbuffer import VertexBuffer
-from OpenGL.GL import *
-
-class Chunk:
-  def __init__(self, map, x, y, z):
-    self.map = map
-    self.x = x
-    self.y = y
-    self.z = z
-    self.current = {}
-    self.original = {}
-    self.entities = {}
-    self.regions = {}
-    self.onChunkData = Event()
-    self.dirty = False
-
-    self.tiles = {}
-    self.vertexBuffer = VertexBuffer()
-
-    # Test Region
-    region = self.regions[0] = Region(self)
-    region.minX = 0
-    region.minY = 0
-    region.minZ = 0
-    region.maxX = 32
-    region.maxY = 32
-    region.maxZ = 32
-    region.updateVertexs()
-
-    # Gen tiles.
-    tileIndex = 0
-    for tz in range(CHUNK_DEPTH):
-      for ty in range(CHUNK_HEIGHT):
-        for tx in range(CHUNK_WIDTH):
-          self.tiles[tileIndex] = Tile(self, tx, ty, tz, tileIndex)
-          tileIndex += 1
-    
-    # Update vertices
-    self.tileUpdateVertices()
-
-  def reload(self, newX, newY, newZ):
-    self.x = newX
-    self.y = newY
-    self.z = newZ
-    self.entities = {}
-    for tile in self.tiles.values():
-      tile.chunkReload(newX, newY, newZ)
-    self.load()
-
-  def tileUpdateVertices(self):
-    self.vertexBuffer.clear()
-    for tile in self.tiles.values():
-      tile.buffer(self.vertexBuffer)
-    self.vertexBuffer.buildData()
-
-  def load(self):
-    fname = self.getFilename()
-    if not fname or not os.path.exists(fname):
-      self.new()
-      return
-    try:
-      with open(fname, 'r') as f:
-        data = json.load(f)
-
-      if not 'shapes' in data:
-        data['shapes'] = []
-      
-      # For each tile.
-      for tile in self.tiles.values():
-        tile.load(data)
-
-      # For each entity.
-      self.entities = {}
-      if 'entities' in data:
-        for id, entData in enumerate(data['entities']):
-          ent = Entity(self)
-          ent.load(entData)
-          self.entities[id] = ent
-      
-      self.tileUpdateVertices()
-      self.dirty = False
-      self.onChunkData.invoke(self)
-      self.map.onEntityData.invoke()
-    except Exception as e:
-      raise RuntimeError(f"Failed to load chunk file: {e}")
-
-  def save(self):
-    if not self.isDirty():
-      return
-    
-    dataOut = {
-      'shapes': [],
-      'entities': []
-    }
-
-    for tile in self.tiles.values():
-      dataOut['shapes'].append(tile.shape)
-      
-    for ent in self.entities.values():
-      entData = {}
-      ent.save(entData)
-      dataOut['entities'].append(entData)
-    
-    fname = self.getFilename()
-    if not fname:
-      raise ValueError("No filename specified for saving chunk.")
-    try:
-      with open(fname, 'w') as f:
-        json.dump(dataOut, f)
-      self.dirty = False
-      self.onChunkData.invoke(self)
-    except Exception as e:
-      raise RuntimeError(f"Failed to save chunk file: {e}")
-
-  def new(self):
-    for tile in self.tiles.values():
-      tile.shape = TILE_SHAPE_NULL
-
-    self.tileUpdateVertices()
-    self.dirty = False
-    self.onChunkData.invoke(self)
-
-  def isDirty(self):
-    return self.dirty
-
-  def getFilename(self):
-    if not self.map or not hasattr(self.map, 'getChunkDirectory'):
-      return None
-    dirPath = self.map.getChunkDirectory()
-    if dirPath is None:
-      return None
-    return f"{dirPath}/{self.x}_{self.y}_{self.z}.json"
-  
-  def draw(self):
-    self.vertexBuffer.draw()
-
-  def addEntity(self, localX=0, localY=0, localZ=0):
-    ent = Entity(self, localX, localY, localZ)
-    self.entities[len(self.entities)] = ent
-    self.map.onEntityData.invoke()
-    self.dirty = True
-    return ent
-  
-  def removeEntity(self, entity):
-    for key, val in list(self.entities.items()):
-      if val == entity:
-        del self.entities[key]
-        self.map.onEntityData.invoke()
-        self.dirty = True
-        return True
-    return False

archive/dusk/defs.py

@@ -1,49 +0,0 @@
-from dotenv import load_dotenv, dotenv_values
-import os
-import sys
-
-current_file_path = os.path.abspath(__file__)
-duskDefsPath = os.path.join(os.path.dirname(current_file_path), "..", "..", "src", "duskdefs.env")
-
-# Ensure the .env file exists
-if not os.path.isfile(duskDefsPath):
-  print(f"Error: .env file not found at {duskDefsPath}")
-  sys.exit(1)
-
-load_dotenv(dotenv_path=duskDefsPath)
-defs = {key: os.getenv(key) for key in os.environ.keys()}
-
-fileDefs = dotenv_values(dotenv_path=duskDefsPath)
-
-# Parsed out definitions
-CHUNK_WIDTH = int(defs.get('CHUNK_WIDTH'))
-CHUNK_HEIGHT = int(defs.get('CHUNK_HEIGHT'))
-CHUNK_DEPTH = int(defs.get('CHUNK_DEPTH'))
-CHUNK_TILE_COUNT = CHUNK_WIDTH * CHUNK_HEIGHT * CHUNK_DEPTH
-CHUNK_VERTEX_COUNT_MAX = int(defs.get('CHUNK_VERTEX_COUNT_MAX'))
-
-TILE_WIDTH = float(defs.get('TILE_WIDTH'))
-TILE_HEIGHT = float(defs.get('TILE_HEIGHT'))
-TILE_DEPTH = float(defs.get('TILE_DEPTH'))
-
-RPG_CAMERA_PIXELS_PER_UNIT = float(defs.get('RPG_CAMERA_PIXELS_PER_UNIT'))
-RPG_CAMERA_Z_OFFSET = float(defs.get('RPG_CAMERA_Z_OFFSET'))
-RPG_CAMERA_FOV = float(defs.get('RPG_CAMERA_FOV'))
-
-MAP_WIDTH = 5
-MAP_HEIGHT = 5
-MAP_DEPTH = 3
-MAP_CHUNK_COUNT = MAP_WIDTH * MAP_HEIGHT * MAP_DEPTH
-
-TILE_SHAPES = {}
-for key in defs.keys():
-  if key.startswith('TILE_SHAPE_'):
-    globals()[key] = int(defs.get(key))
-    TILE_SHAPES[key] = int(defs.get(key))
-
-ENTITY_TYPES = {}
-for key in defs.keys():
-  if key.startswith('ENTITY_TYPE_'):
-    globals()[key] = int(defs.get(key))
-    if key != 'ENTITY_TYPE_COUNT':
-      ENTITY_TYPES[key] = int(defs.get(key))

archive/dusk/entity.py

@@ -1,90 +0,0 @@
-from tools.dusk.defs import ENTITY_TYPE_NULL, ENTITY_TYPE_NPC, CHUNK_WIDTH, CHUNK_HEIGHT, CHUNK_DEPTH, TILE_WIDTH, TILE_HEIGHT, TILE_DEPTH
-from tools.editor.map.vertexbuffer import VertexBuffer
-
-class Entity:
-  def __init__(self, chunk, localX=0, localY=0, localZ=0):
-    self.type = ENTITY_TYPE_NPC
-    self.name = "Unititled"
-    self.localX = localX % CHUNK_WIDTH
-    self.localY = localY % CHUNK_HEIGHT
-    self.localZ = localZ % CHUNK_DEPTH
-
-    self.chunk = chunk
-    self.vertexBuffer = VertexBuffer()
-    pass
-
-  def load(self, obj):
-    self.type = obj.get('type', ENTITY_TYPE_NULL)
-    self.localX = obj.get('x', 0)
-    self.localY = obj.get('y', 0)
-    self.localZ = obj.get('z', 0)
-    self.name = obj.get('name', "Untitled")
-    pass
-
-  def save(self, obj):
-    obj['type'] = self.type
-    obj['name'] = self.name
-    obj['x'] = self.localX
-    obj['y'] = self.localY
-    obj['z'] = self.localZ
-    pass
-
-  def setType(self, entityType):
-    if self.type == entityType:
-      return
-    self.type = entityType
-    self.chunk.dirty = True
-    self.chunk.map.onEntityData.invoke()
-
-  def setName(self, name):
-    if self.name == name:
-      return
-    self.name = name
-    self.chunk.dirty = True
-    self.chunk.map.onEntityData.invoke()
-
-  def draw(self):
-    self.vertexBuffer.clear()
-
-    startX = (self.chunk.x * CHUNK_WIDTH + self.localX) * TILE_WIDTH
-    startY = (self.chunk.y * CHUNK_HEIGHT + self.localY) * TILE_HEIGHT
-    startZ = (self.chunk.z * CHUNK_DEPTH + self.localZ) * TILE_DEPTH
-    w = TILE_WIDTH
-    h = TILE_HEIGHT
-    d = TILE_DEPTH
-
-    # Center
-    startX -= w / 2
-    startY -= h / 2
-    startZ -= d / 2
-    
-    # Offset upwards a little
-    startZ += 1
-
-    # Buffer simple quad at current position (need 6 positions)
-    self.vertexBuffer.vertices = [
-      startX,     startY,     startZ,
-      startX + w, startY,     startZ,
-      startX + w, startY + h, startZ,
-      startX,     startY,     startZ,
-      startX + w, startY + h, startZ,
-      startX,     startY + h, startZ,
-    ]
-    self.vertexBuffer.colors = [
-      1.0, 0.0, 1.0, 1.0,
-      1.0, 0.0, 1.0, 1.0,
-      1.0, 0.0, 1.0, 1.0,
-      1.0, 0.0, 1.0, 1.0,
-      1.0, 0.0, 1.0, 1.0,
-      1.0, 0.0, 1.0, 1.0,
-    ]
-    self.vertexBuffer.uvs = [
-      0.0, 0.0,
-      1.0, 0.0,
-      1.0, 1.0,
-      0.0, 0.0,
-      1.0, 1.0,
-      0.0, 1.0,
-    ]
-    self.vertexBuffer.buildData()
-    self.vertexBuffer.draw()

archive/dusk/event.py

@@ -1,18 +0,0 @@
-class Event:
-  def __init__(self):
-    self._subscribers = []
-
-  def sub(self, callback):
-    """Subscribe a callback to the event."""
-    if callback not in self._subscribers:
-      self._subscribers.append(callback)
-
-  def unsub(self, callback):
-    """Unsubscribe a callback from the event."""
-    if callback in self._subscribers:
-      self._subscribers.remove(callback)
-
-  def invoke(self, *args, **kwargs):
-    """Invoke all subscribers with the given arguments."""
-    for callback in self._subscribers:
-      callback(*args, **kwargs)

archive/dusk/map.py

@@ -1,259 +0,0 @@
-import json
-import sys
-from tools.dusk.event import Event
-from PyQt5.QtWidgets import QFileDialog, QMessageBox
-from PyQt5.QtCore import QTimer
-import os
-from tools.dusk.chunk import Chunk
-from tools.dusk.defs import MAP_WIDTH, MAP_HEIGHT, MAP_DEPTH, CHUNK_WIDTH, CHUNK_HEIGHT, CHUNK_DEPTH
-import traceback
-
-MAP_DEFAULT_PATH = os.path.join(os.path.dirname(__file__), '../../assets/map/')
-EDITOR_CONFIG_PATH = os.path.join(os.path.dirname(__file__), '.editor')
-
-class Map:
-  def __init__(self, parent):
-    self.parent = parent
-    self.data = {}
-    self.dataOriginal = {}
-    self.position = [None, None, None]  # x, y, z
-    self.topLeftX = None
-    self.topLeftY = None
-    self.topLeftZ = None
-    self.chunks = {}
-    self.onMapData = Event()
-    self.onPositionChange = Event()
-    self.onEntityData = Event()
-    self.mapFileName = None
-    self.lastFile = None
-    self.firstLoad = True
-
-    index = 0
-    for x in range(MAP_WIDTH):
-      for y in range(MAP_HEIGHT):
-        for z in range(MAP_DEPTH):
-          self.chunks[index] = Chunk(self, x, y, z)
-          index += 1
-    
-    # Only in editor instances:
-    self.moveTo(0, 0, 0)
-    if parent is not None:
-      QTimer.singleShot(16, self.loadLastFile)
-
-  def loadLastFile(self):
-    if not os.path.exists(EDITOR_CONFIG_PATH):
-      return
-    try:
-      with open(EDITOR_CONFIG_PATH, 'r') as f:
-        config = json.load(f)
-      lastFile = config.get('lastFile')
-      lastPosition = config.get('lastPosition')
-      leftPanelIndex = config.get('leftPanelIndex')
-      if lastFile and os.path.exists(lastFile):
-        self.load(lastFile)
-      if lastPosition and isinstance(lastPosition, list) and len(lastPosition) == 3:
-        self.moveTo(*lastPosition)
-      if leftPanelIndex is not None:
-        self.parent.leftPanel.tabs.setCurrentIndex(leftPanelIndex)
-    except Exception:
-      traceback.print_exc()
-
-  def updateEditorConfig(self):
-    if self.parent is None:
-      return
-    try:
-      mapFileName = self.getMapFilename()
-      config = {
-        'lastFile': mapFileName if mapFileName else "",
-        'lastPosition': self.position,
-        'leftPanelIndex': self.parent.leftPanel.tabs.currentIndex()
-      }
-      config_dir = os.path.dirname(EDITOR_CONFIG_PATH)
-      if not os.path.exists(config_dir):
-        os.makedirs(config_dir, exist_ok=True)
-      with open(EDITOR_CONFIG_PATH, 'w') as f:
-        json.dump(config, f, indent=2)
-    except Exception:
-      traceback.print_exc()
-
-  def newFile(self):
-    self.data = {}
-    self.dataOriginal = {}
-    self.mapFileName = None
-    self.lastFile = None
-    for chunk in self.chunks.values():
-      chunk.new()
-    self.moveTo(0, 0, 0)
-    self.onMapData.invoke(self.data)
-    self.updateEditorConfig()
-  
-  def save(self, fname=None):
-    if not self.getMapFilename() and fname is None:
-      filePath, _ = QFileDialog.getSaveFileName(None, "Save Map File", MAP_DEFAULT_PATH, "Map Files (*.json)")
-      if not filePath:
-        return
-      self.mapFileName = filePath
-    if fname:
-      self.mapFileName = fname
-    try:
-      with open(self.getMapFilename(), 'w') as f:
-        json.dump(self.data, f, indent=2)
-      self.dataOriginal = json.loads(json.dumps(self.data))  # Deep copy
-      for chunk in self.chunks.values():
-        chunk.save()
-      self.updateEditorConfig()
-    except Exception as e:
-      traceback.print_exc()
-      QMessageBox.critical(None, "Save Error", f"Failed to save map file:\n{e}")
-
-  def load(self, fileName):
-    try:
-      with open(fileName, 'r') as f:
-        self.data = json.load(f)
-      self.mapFileName = fileName
-      self.dataOriginal = json.loads(json.dumps(self.data))  # Deep copy
-      for chunk in self.chunks.values():
-        chunk.load()
-      self.onMapData.invoke(self.data)
-      self.updateEditorConfig()
-    except Exception as e:
-      traceback.print_exc()
-      QMessageBox.critical(None, "Load Error", f"Failed to load map file:\n{e}")
-
-  def isMapFileDirty(self):
-    return json.dumps(self.data, sort_keys=True) != json.dumps(self.dataOriginal, sort_keys=True)
-
-  def isDirty(self):
-    return self.isMapFileDirty() or self.anyChunksDirty()
-
-  def getMapFilename(self):
-    return self.mapFileName if self.mapFileName and os.path.exists(self.mapFileName) else None
-
-  def getMapDirectory(self):
-    if self.mapFileName is None:
-      return None
-    dirname = os.path.dirname(self.mapFileName)
-    return dirname
-  
-  def getChunkDirectory(self):
-    dirName = self.getMapDirectory()
-    if dirName is None:
-      return None
-    return os.path.join(dirName, 'chunks')
-  
-  def anyChunksDirty(self):
-    for chunk in self.chunks.values():
-      if chunk.isDirty():
-        return True
-    return False
-
-  def moveTo(self, x, y, z):
-    if self.position == [x, y, z]:
-      return
-    
-    # We need to decide if the chunks should be unloaded here or not.
-    newTopLeftChunkX = x // CHUNK_WIDTH - (MAP_WIDTH // 2)
-    newTopLeftChunkY = y // CHUNK_HEIGHT - (MAP_HEIGHT // 2)
-    newTopLeftChunkZ = z // CHUNK_DEPTH - (MAP_DEPTH // 2)
-
-    if(newTopLeftChunkX != self.topLeftX or
-        newTopLeftChunkY != self.topLeftY or
-        newTopLeftChunkZ != self.topLeftZ):
-      
-      chunksToUnload = []
-      chunksToKeep = []
-      for chunk in self.chunks.values():
-        chunkWorldX = chunk.x
-        chunkWorldY = chunk.y
-        chunkWorldZ = chunk.z
-        if(chunkWorldX < newTopLeftChunkX or
-            chunkWorldX >= newTopLeftChunkX + MAP_WIDTH or
-            chunkWorldY < newTopLeftChunkY or
-            chunkWorldY >= newTopLeftChunkY + MAP_HEIGHT or
-            chunkWorldZ < newTopLeftChunkZ or
-            chunkWorldZ >= newTopLeftChunkZ + MAP_DEPTH):
-          chunksToUnload.append(chunk)
-        else:
-          chunksToKeep.append(chunk)
-      
-      # Unload chunks that are out of the new bounds.
-      for chunk in chunksToUnload:
-        if chunk.isDirty():
-          print(f"Can't move map, some chunks are dirty: ({chunk.x}, {chunk.y}, {chunk.z})")
-          return
-        
-      # Now we can safely unload the chunks.
-      chunkIndex = 0
-      newChunks = {}
-      for chunk in chunksToKeep:
-        newChunks[chunkIndex] = chunk
-        chunkIndex += 1
-
-      for xPos in range(newTopLeftChunkX, newTopLeftChunkX + MAP_WIDTH):
-        for yPos in range(newTopLeftChunkY, newTopLeftChunkY + MAP_HEIGHT):
-          for zPos in range(newTopLeftChunkZ, newTopLeftChunkZ + MAP_DEPTH):
-            # Check if we already have this chunk.
-            found = False
-            for chunk in chunksToKeep:
-              if chunk.x == xPos and chunk.y == yPos and chunk.z == zPos:
-                found = True
-                break
-            if not found:
-              # Create a new chunk.
-              newChunk = chunksToUnload.pop()
-              newChunk.reload(xPos, yPos, zPos)
-              newChunks[chunkIndex] = newChunk
-              chunkIndex += 1
-
-      self.chunks = newChunks
-      self.topLeftX = newTopLeftChunkX
-      self.topLeftY = newTopLeftChunkY
-      self.topLeftZ = newTopLeftChunkZ
-
-    self.position = [x, y, z]
-    self.onPositionChange.invoke(self.position)
-    if not self.firstLoad:
-      self.updateEditorConfig()
-    self.firstLoad = False
-
-  def moveRelative(self, x, y, z):
-    self.moveTo(
-      self.position[0] + x,
-      self.position[1] + y,
-      self.position[2] + z
-    )
-  
-  def draw(self):
-    for chunk in self.chunks.values():
-      chunk.draw()
-    
-    for chunk in self.chunks.values():
-      for entity in chunk.entities.values():
-        entity.draw()
-
-    # Only render on Region tab
-    if self.parent.leftPanel.tabs.currentWidget() == self.parent.leftPanel.regionPanel:
-      for chunk in self.chunks.values():
-        for region in chunk.regions.values():
-          region.draw()
-
-  def getChunkAtWorldPos(self, x, y, z):
-    chunkX = x // CHUNK_WIDTH
-    chunkY = y // CHUNK_HEIGHT
-    chunkZ = z // CHUNK_DEPTH
-    for chunk in self.chunks.values():
-      if chunk.x == chunkX and chunk.y == chunkY and chunk.z == chunkZ:
-        return chunk
-    return None
-
-  def getTileAtWorldPos(self, x, y, z):
-    chunk = self.getChunkAtWorldPos(x, y, z)
-    if not chunk:
-      print("No chunk found at position:", (x, y, z))
-      return None
-    
-    tileX = x % CHUNK_WIDTH
-    tileY = y % CHUNK_HEIGHT
-    tileZ = z % CHUNK_DEPTH
-    tileIndex = tileX + tileY * CHUNK_WIDTH + tileZ * CHUNK_WIDTH * CHUNK_HEIGHT
-    return chunk.tiles.get(tileIndex)

archive/dusk/region.py

@@ -1,141 +0,0 @@
-from tools.dusk.defs import CHUNK_WIDTH, CHUNK_HEIGHT, CHUNK_DEPTH, TILE_WIDTH, TILE_HEIGHT, TILE_DEPTH
-from tools.editor.map.vertexbuffer import VertexBuffer
-from OpenGL.GL import *
-from OpenGL.GLU import *
-
-class Region:
-  def __init__(self, chunk):
-    self.minX = 0
-    self.minY = 0
-    self.minZ = 0
-    self.maxX = 0
-    self.maxY = 0
-    self.maxZ = 0
-    self.chunk = chunk
-    self.vertexBuffer = VertexBuffer()
-    self.color = (1.0, 0.0, 0.0)
-    self.updateVertexs()
-    pass
-
-  def updateVertexs(self):
-    # Draw a quad, semi transparent with solid outlines
-    vminX = (self.minX * CHUNK_WIDTH) * TILE_WIDTH
-    vminY = (self.minY * CHUNK_HEIGHT) * TILE_HEIGHT
-    vminZ = (self.minZ * CHUNK_DEPTH) * TILE_DEPTH
-    vmaxX = (self.maxX * CHUNK_WIDTH) * TILE_WIDTH
-    vmaxY = (self.maxY * CHUNK_HEIGHT) * TILE_HEIGHT
-    vmaxZ = (self.maxZ * CHUNK_DEPTH) * TILE_DEPTH
-    alpha = 0.25
-
-    # Move back half a tile width
-    vminX -= TILE_WIDTH / 2
-    vmaxX -= TILE_WIDTH / 2
-    vminY -= TILE_HEIGHT / 2
-    vmaxY -= TILE_HEIGHT / 2
-    vminZ -= TILE_DEPTH / 2
-    vmaxZ -= TILE_DEPTH / 2
-
-    # Cube (6 verts per face)
-    self.vertexBuffer.vertices = [
-      # Front face
-      vminX, vminY, vmaxZ,
-      vmaxX, vminY, vmaxZ,
-      vmaxX, vmaxY, vmaxZ,
-      vminX, vminY, vmaxZ,
-      vmaxX, vmaxY, vmaxZ,
-      vminX, vmaxY, vmaxZ,
-
-      # Back face
-      vmaxX, vminY, vminZ,
-      vminX, vminY, vminZ,
-      vminX, vmaxY, vminZ,
-      vmaxX, vminY, vminZ,
-      vminX, vmaxY, vminZ,
-      vmaxX, vmaxY, vminZ,
-
-      # Left face
-      vminX, vminY, vminZ,
-      vminX, vminY, vmaxZ,
-      vminX, vmaxY, vmaxZ,
-      vminX, vminY, vminZ,
-      vminX, vmaxY, vmaxZ,
-      vminX, vmaxY, vminZ,
-
-      # Right face
-      vmaxX, vminY, vmaxZ,
-      vmaxX, vminY, vminZ,
-      vmaxX, vmaxY, vminZ,
-      vmaxX, vminY, vmaxZ,
-      vmaxX, vmaxY, vminZ,
-      vmaxX, vmaxY, vmaxZ,
-
-      # Top face
-      vminX, vmaxY, vmaxZ,
-      vmaxX, vmaxY, vmaxZ,
-      vmaxX, vmaxY, vminZ,
-      vminX, vmaxY, vmaxZ,
-      vmaxX, vmaxY, vminZ,
-      vminX, vmaxY, vminZ,
-
-      # Bottom face
-      vminX, vminY, vminZ,
-      vmaxX, vminY, vminZ,
-      vmaxX, vminY, vmaxZ,
-      vminX, vminY, vminZ,
-      vmaxX, vminY, vmaxZ,
-      vminX, vminY, vmaxZ,
-    ]
-
-    self.vertexBuffer.colors = [
-      # Front face
-      self.color[0], self.color[1], self.color[2], alpha,
-      self.color[0], self.color[1], self.color[2], alpha,
-      self.color[0], self.color[1], self.color[2], alpha,
-      self.color[0], self.color[1], self.color[2], alpha,
-      self.color[0], self.color[1], self.color[2], alpha,
-      self.color[0], self.color[1], self.color[2], alpha,
-
-      # Back face
-      self.color[0], self.color[1], self.color[2], alpha,
-      self.color[0], self.color[1], self.color[2], alpha,
-      self.color[0], self.color[1], self.color[2], alpha,
-      self.color[0], self.color[1], self.color[2], alpha,
-      self.color[0], self.color[1], self.color[2], alpha,
-      self.color[0], self.color[1], self.color[2], alpha,
-
-      # Left face
-      self.color[0], self.color[1], self.color[2], alpha,
-      self.color[0], self.color[1], self.color[2], alpha,
-      self.color[0], self.color[1], self.color[2], alpha,
-      self.color[0], self.color[1], self.color[2], alpha,
-      self.color[0], self.color[1], self.color[2], alpha,
-      self.color[0], self.color[1], self.color[2], alpha,
-
-      # Right face
-      self.color[0], self.color[1], self.color[2], alpha,
-      self.color[0], self.color[1], self.color[2], alpha,
-      self.color[0], self.color[1], self.color[2], alpha,
-      self.color[0], self.color[1], self.color[2], alpha,
-      self.color[0], self.color[1], self.color[2], alpha,
-      self.color[0], self.color[1], self.color[2], alpha,
-
-      # Top face
-      self.color[0], self.color[1], self.color[2], alpha,
-      self.color[0], self.color[1], self.color[2], alpha,
-      self.color[0], self.color[1], self.color[2], alpha,
-      self.color[0], self.color[1], self.color[2], alpha,
-      self.color[0], self.color[1], self.color[2], alpha,
-      self.color[0], self.color[1], self.color[2], alpha,
-
-      # Bottom face
-      self.color[0], self.color[1], self.color[2], alpha,
-      self.color[0], self.color[1], self.color[2], alpha,
-      self.color[0], self.color[1], self.color[2], alpha,
-      self.color[0], self.color[1], self.color[2], alpha,
-      self.color[0], self.color[1], self.color[2], alpha,
-      self.color[0], self.color[1], self.color[2], alpha,
-    ]
-    self.vertexBuffer.buildData()
-
-  def draw(self):
-    self.vertexBuffer.draw()

archive/dusk/tile.py

@@ -1,206 +0,0 @@
-from OpenGL.GL import *
-from tools.dusk.defs import (
-  TILE_WIDTH, TILE_HEIGHT, TILE_DEPTH,
-  CHUNK_WIDTH, CHUNK_HEIGHT, CHUNK_DEPTH,
-  TILE_SHAPE_NULL, TILE_SHAPE_FLOOR,
-  TILE_SHAPE_RAMP_NORTH, TILE_SHAPE_RAMP_SOUTH,
-  TILE_SHAPE_RAMP_EAST, TILE_SHAPE_RAMP_WEST,
-  TILE_SHAPE_RAMP_SOUTHWEST, TILE_SHAPE_RAMP_SOUTHEAST,
-  TILE_SHAPE_RAMP_NORTHWEST, TILE_SHAPE_RAMP_NORTHEAST
-)
-
-def getItem(arr, index, default):
-  if index < len(arr):
-    return arr[index]
-  return default
-
-class Tile:
-  def __init__(self, chunk, x, y, z, tileIndex):
-    self.shape = TILE_SHAPE_NULL
-
-    self.chunk = chunk
-    self.x = x
-    self.y = y
-    self.z = z
-    self.index = tileIndex
-
-    self.posX = x * TILE_WIDTH + chunk.x * CHUNK_WIDTH * TILE_WIDTH
-    self.posY = y * TILE_HEIGHT + chunk.y * CHUNK_HEIGHT * TILE_HEIGHT
-    self.posZ = z * TILE_DEPTH + chunk.z * CHUNK_DEPTH * TILE_DEPTH
-  
-  def chunkReload(self, newX, newY, newZ):
-    self.posX = self.x * TILE_WIDTH + newX * CHUNK_WIDTH * TILE_WIDTH
-    self.posY = self.y * TILE_HEIGHT + newY * CHUNK_HEIGHT * TILE_HEIGHT
-    self.posZ = self.z * TILE_DEPTH + newZ * CHUNK_DEPTH * TILE_DEPTH
-
-  def load(self, chunkData):
-    self.shape = getItem(chunkData['shapes'], self.index, TILE_SHAPE_NULL)
-
-  def setShape(self, shape):
-    if shape == self.shape:
-      return
-    
-    self.shape = shape
-    self.chunk.dirty = True
-    self.chunk.tileUpdateVertices()
-    self.chunk.onChunkData.invoke(self.chunk)
-
-  def getBaseTileModel(self):
-    vertices = []
-    indices = []
-    uvs = []
-    colors = [] 
-
-    if self.shape == TILE_SHAPE_NULL:
-      pass
-
-    elif self.shape == TILE_SHAPE_FLOOR:
-      vertices = [
-        (self.posX, self.posY, self.posZ),
-        (self.posX + TILE_WIDTH, self.posY, self.posZ),
-        (self.posX + TILE_WIDTH, self.posY + TILE_HEIGHT, self.posZ),
-        (self.posX, self.posY + TILE_HEIGHT, self.posZ)
-      ]
-      indices = [0, 1, 2, 0, 2, 3]
-      uvs = [ (0, 0), (1, 0), (1, 1), (0, 1) ]
-      colors = [ (255, 255, 255, 255) ] * 4
-
-    elif self.shape == TILE_SHAPE_RAMP_NORTH:
-      vertices = [
-        (self.posX, self.posY, self.posZ + TILE_DEPTH),
-        (self.posX + TILE_WIDTH, self.posY, self.posZ + TILE_DEPTH),
-        (self.posX + TILE_WIDTH, self.posY + TILE_HEIGHT, self.posZ),
-        (self.posX, self.posY + TILE_HEIGHT, self.posZ)
-      ]
-      indices = [0, 1, 2, 0, 2, 3]
-      uvs = [ (0, 0), (1, 0), (1, 1), (0, 1) ]
-      colors = [ (255, 0, 0, 255) ] * 4
-
-    elif self.shape == TILE_SHAPE_RAMP_SOUTH:
-      vertices = [
-        (self.posX, self.posY, self.posZ),
-        (self.posX + TILE_WIDTH, self.posY, self.posZ),
-        (self.posX + TILE_WIDTH, self.posY + TILE_HEIGHT, self.posZ + TILE_DEPTH),
-        (self.posX, self.posY + TILE_HEIGHT, self.posZ + TILE_DEPTH)
-      ]
-      indices = [0, 1, 2, 0, 2, 3]
-      uvs = [ (0, 0), (1, 0), (1, 1), (0, 1) ]
-      colors = [ (0, 255, 0, 255) ] * 4
-
-    elif self.shape == TILE_SHAPE_RAMP_EAST:
-      vertices = [
-        (self.posX, self.posY, self.posZ),
-        (self.posX + TILE_WIDTH, self.posY, self.posZ + TILE_DEPTH),
-        (self.posX + TILE_WIDTH, self.posY + TILE_HEIGHT, self.posZ + TILE_DEPTH),
-        (self.posX, self.posY + TILE_HEIGHT, self.posZ)
-      ]
-      indices = [0, 1, 2, 0, 2, 3]
-      uvs = [ (0, 0), (1, 0), (1, 1), (0, 1) ]
-      colors = [ (0, 0, 255, 255) ] * 4
-
-    elif self.shape == TILE_SHAPE_RAMP_WEST:
-      vertices = [
-        (self.posX, self.posY, self.posZ + TILE_DEPTH),
-        (self.posX + TILE_WIDTH, self.posY, self.posZ),
-        (self.posX + TILE_WIDTH, self.posY + TILE_HEIGHT, self.posZ),
-        (self.posX, self.posY + TILE_HEIGHT, self.posZ + TILE_DEPTH)
-      ]
-      indices = [0, 1, 2, 0, 2, 3]
-      uvs = [ (0, 0), (1, 0), (1, 1), (0, 1) ]
-      colors = [ (255, 255, 0, 255) ] * 4
-    
-    elif self.shape == TILE_SHAPE_RAMP_SOUTHWEST:
-      vertices = [
-        (self.posX, self.posY, self.posZ + TILE_DEPTH),
-        (self.posX + TILE_WIDTH, self.posY, self.posZ),
-        (self.posX + TILE_WIDTH, self.posY + TILE_HEIGHT, self.posZ + TILE_DEPTH),
-        (self.posX, self.posY + TILE_HEIGHT, self.posZ + TILE_DEPTH)
-      ]
-      indices = [0, 1, 2, 0, 2, 3]
-      uvs = [ (0, 0), (1, 0), (1, 1), (0, 1) ]
-      colors = [ (255, 128, 0, 255) ] * 4
-
-    elif self.shape == TILE_SHAPE_RAMP_NORTHWEST:
-      vertices = [
-        (self.posX, self.posY, self.posZ + TILE_DEPTH),
-        (self.posX + TILE_WIDTH, self.posY, self.posZ + TILE_DEPTH),
-        (self.posX + TILE_WIDTH, self.posY + TILE_HEIGHT, self.posZ),
-        (self.posX, self.posY + TILE_HEIGHT, self.posZ + TILE_DEPTH)
-      ]
-      indices = [0, 1, 2, 0, 2, 3]
-      uvs = [ (0, 0), (1, 0), (1, 1), (0, 1) ]
-      colors = [ (128, 255, 0, 255) ] * 4
-
-    elif self.shape == TILE_SHAPE_RAMP_NORTHEAST:
-      vertices = [
-        (self.posX, self.posY, self.posZ + TILE_DEPTH),
-        (self.posX + TILE_WIDTH, self.posY, self.posZ + TILE_DEPTH),
-        (self.posX + TILE_WIDTH, self.posY + TILE_HEIGHT, self.posZ + TILE_DEPTH),
-        (self.posX, self.posY + TILE_HEIGHT, self.posZ)
-      ]
-      indices = [0, 1, 2, 0, 2, 3]
-      uvs = [ (0, 0), (1, 0), (1, 1), (0, 1) ]
-      colors = [ (0, 255, 128, 255) ] * 4
-      
-    elif self.shape == TILE_SHAPE_RAMP_SOUTHEAST:
-      vertices = [
-        (self.posX, self.posY, self.posZ),
-        (self.posX + TILE_WIDTH, self.posY, self.posZ + TILE_DEPTH),
-        (self.posX + TILE_WIDTH, self.posY + TILE_HEIGHT, self.posZ + TILE_DEPTH),
-        (self.posX, self.posY + TILE_HEIGHT, self.posZ + TILE_DEPTH)
-      ]
-      indices = [0, 1, 2, 0, 2, 3]
-      uvs = [ (0, 0), (1, 0), (1, 1), (0, 1) ]
-      colors = [ (255, 128, 255, 255) ] * 4
-
-    else:
-      # Solid black cube for unknown shape
-      x0, y0, z0 = self.posX, self.posY, self.posZ
-      x1, y1, z1 = self.posX + TILE_WIDTH, self.posY + TILE_HEIGHT, self.posZ + TILE_DEPTH
-      vertices = [
-        (x0, y0, z0), (x1, y0, z0), (x1, y1, z0), (x0, y1, z0), # bottom
-        (x0, y0, z1), (x1, y0, z1), (x1, y1, z1), (x0, y1, z1)  # top
-      ]
-      indices = [
-        0,1,2, 0,2,3,   # bottom
-        4,5,6, 4,6,7,   # top
-        0,1,5, 0,5,4,   # front
-        2,3,7, 2,7,6,   # back
-        1,2,6, 1,6,5,   # right
-        3,0,4, 3,4,7    # left
-      ]
-      uvs = [ (0,0) ] * 8
-      colors = [ (0,0,0,255) ] * 8
-
-    return {
-      'vertices': vertices,
-      'indices': indices,
-      'uvs': uvs,
-      'colors': colors
-    }
-
-  def buffer(self, vertexBuffer):
-    if self.shape == TILE_SHAPE_NULL:
-      return
-
-    # New code:
-    baseData = self.getBaseTileModel()
-
-    # Base data is indiced but we need to buffer unindiced data
-    for index in baseData['indices']:
-      verts = baseData['vertices'][index]
-      uv = baseData['uvs'][index]
-      color = baseData['colors'][index]
-
-      vertexBuffer.vertices.extend([
-        verts[0] - (TILE_WIDTH / 2.0),
-        verts[1] - (TILE_HEIGHT / 2.0),
-        verts[2] - (TILE_DEPTH / 2.0)
-      ])
-
-      vertexBuffer.colors.extend([
-        color[0] / 255.0,
-        color[1] / 255.0,
-        color[2] / 255.0,
-        color[3] / 255.0
-      ])

archive/dusk/ui/CMakeLists.txt

@@ -0,0 +1,18 @@
+# Copyright (c) 2026 Dominic Masters
+# 
+# This software is released under the MIT License.
+# https://opensource.org/licenses/MIT
+
+add_subdirectory(debug)
+add_subdirectory(frame)
+add_subdirectory(focus)
+add_subdirectory(overlay)
+add_subdirectory(transition)
+add_subdirectory(widget)
+
+# Sources
+target_sources(${DUSK_LIBRARY_TARGET_NAME}
+  PUBLIC
+    ui.c
+    uielement.c
+)

archive/dusk/ui/debug/CMakeLists.txt

@@ -0,0 +1,10 @@
+# Copyright (c) 2026 Dominic Masters
+#
+# This software is released under the MIT License.
+# https://opensource.org/licenses/MIT
+
+target_sources(${DUSK_LIBRARY_TARGET_NAME}
+  PUBLIC
+    uiconsole.c
+    uifps.c
+)

archive/dusk/ui/debug/uiconsole.c

@@ -0,0 +1,138 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "uiconsole.h"
+#include "assert/assert.h"
+#include "console/console.h"
+#include "display/screen/screen.h"
+#include "display/text/text.h"
+#include "display/spritebatch/spritebatch.h"
+#include "display/shader/shaderunlit.h"
+#include "display/mesh/mesh.h"
+#include "util/memory.h"
+
+typedef struct {
+  mesh_t mesh;
+  bool_t built;
+  meshvertex_t vertices[UI_CONSOLE_CACHE_VERTEX_MAX];
+  int32_t vertexCount;
+  int32_t cachedScanX;
+  int32_t cachedScanY;
+} uiconsolecache_t;
+
+uiconsolecache_t UI_CONSOLE_CACHE;
+
+errorret_t uiConsoleDraw(void) {
+  if(!CONSOLE.visible) errorOk();
+
+  if(
+    CONSOLE.dirty ||
+    UI_CONSOLE_CACHE.cachedScanX != SCREEN.scanX ||
+    UI_CONSOLE_CACHE.cachedScanY != SCREEN.scanY
+  ) {
+    errorChain(uiConsoleRebuild());
+  }
+
+  if(UI_CONSOLE_CACHE.vertexCount == 0) errorOk();
+
+  shadermaterial_t material = {
+    .unlit = {
+      .color = COLOR_RED,
+      .texture = FONT_DEFAULT.texture
+    }
+  };
+
+  errorChain(shaderBind(&SHADER_UNLIT));
+  errorChain(shaderSetMaterial(&SHADER_UNLIT, &material));
+  return meshDraw(&UI_CONSOLE_CACHE.mesh, 0, UI_CONSOLE_CACHE.vertexCount);
+}
+
+errorret_t uiConsoleRebuild(void) {
+  int32_t spriteCount = 0;
+  for(uint32_t i = 0; i < CONSOLE_HISTORY_MAX; i++) {
+    char_t c;
+    int32_t j = 0;
+    while((c = CONSOLE.line[i][j++]) != '\0') {
+      if(c != ' ' && c != '\n') spriteCount++;
+    }
+  }
+
+  assertTrue(
+    spriteCount <= UI_CONSOLE_CACHE_GLYPH_MAX,
+    "Console history exceeds fixed cache capacity"
+  );
+
+  const int32_t vertexCount = spriteCount * QUAD_VERTEX_COUNT;
+  UI_CONSOLE_CACHE.vertexCount = vertexCount;
+
+  if(vertexCount > 0) {
+    const float_t lineH = (float_t)FONT_DEFAULT.tileset->tileHeight;
+    const float_t charW = (float_t)FONT_DEFAULT.tileset->tileWidth;
+
+    int32_t index = 0;
+    int32_t row = 0;
+    for(uint32_t i = 0; i < CONSOLE_HISTORY_MAX; i++) {
+      float_t posX = (float_t)SCREEN.scanX;
+      float_t posY = (float_t)SCREEN.scanY + lineH * (float_t)row;
+
+      char_t c;
+      int32_t j = 0;
+      while((c = CONSOLE.line[i][j++]) != '\0') {
+        if(c == '\n') {
+          posX = (float_t)SCREEN.scanX;
+          posY += lineH;
+          row++;
+          continue;
+        }
+
+        if(c == ' ') {
+          posX += charW;
+          continue;
+        }
+
+        const spritebatchsprite_t sprite = textGetSprite(
+          (vec2){ posX, posY }, c, &FONT_DEFAULT
+        );
+        spriteBatchBufferToMesh(
+          &sprite, 1,
+          &UI_CONSOLE_CACHE.vertices[index], QUAD_VERTEX_COUNT
+        );
+
+        index += QUAD_VERTEX_COUNT;
+        posX += charW;
+      }
+
+      row++;
+    }
+
+    if(!UI_CONSOLE_CACHE.built) {
+      errorChain(meshInit(
+        &UI_CONSOLE_CACHE.mesh,
+        QUAD_PRIMITIVE_TYPE,
+        UI_CONSOLE_CACHE_VERTEX_MAX,
+        UI_CONSOLE_CACHE.vertices
+      ));
+      UI_CONSOLE_CACHE.built = true;
+    } else {
+      errorChain(meshFlush(&UI_CONSOLE_CACHE.mesh, 0, vertexCount));
+    }
+  }
+
+  UI_CONSOLE_CACHE.cachedScanX = SCREEN.scanX;
+  UI_CONSOLE_CACHE.cachedScanY = SCREEN.scanY;
+  CONSOLE.dirty = false;
+  errorOk();
+}
+
+errorret_t uiConsoleDispose(void) {
+  if(UI_CONSOLE_CACHE.built) {
+    errorChain(meshDispose(&UI_CONSOLE_CACHE.mesh));
+  }
+
+  memoryZero(&UI_CONSOLE_CACHE, sizeof(uiconsolecache_t));
+  errorOk();
+}

archive/dusk/ui/debug/uiconsole.h

@@ -0,0 +1,48 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "error/error.h"
+#include "display/mesh/quad.h"
+
+// Fixed capacity for the console's cached glyph mesh, in glyphs -- the
+// mesh/vertex buffer is sized to this once and never grown/shrunk, so
+// history producing more non-space characters than this asserts (see
+// uiConsoleRebuild) instead of reallocating.
+#define UI_CONSOLE_CACHE_GLYPH_MAX 512
+#define UI_CONSOLE_CACHE_VERTEX_MAX (\
+  UI_CONSOLE_CACHE_GLYPH_MAX * QUAD_VERTEX_COUNT \
+)
+
+/**
+ * Renders the console history into the scan-safe area, drawing a mesh
+ * that is only rebuilt when the history changes or the scan-safe origin
+ * moves, rather than rebuffering vertices every frame. No-ops when the
+ * console is not visible.
+ *
+ * @return Any error that occurs.
+ */
+errorret_t uiConsoleDraw(void);
+
+/**
+ * Rebuilds the cached mesh for the console's current history and
+ * scan-safe origin. Called automatically by uiConsoleDraw() whenever
+ * needed; only needs calling directly to force an immediate rebuild.
+ * The underlying vertex buffer is a fixed-size array (see
+ * UI_CONSOLE_CACHE_VERTEX_MAX) -- asserts if the history produces more
+ * glyphs than that capacity, rather than growing it.
+ *
+ * @return Any error that occurs.
+ */
+errorret_t uiConsoleRebuild(void);
+
+/**
+ * Frees the mesh and vertex buffer built up by uiConsoleDraw().
+ *
+ * @return Any error that occurs.
+ */
+errorret_t uiConsoleDispose(void);

archive/dusk/ui/debug/uifps.c

@@ -7,13 +7,21 @@
 
 #include "uifps.h"
 #include "time/time.h"
-#include "display/spritebatch/spritebatch.h"
+#include "util/string.h"
 #include "display/text/text.h"
 #include "display/screen/screen.h"
 #include "engine/engine.h"
 
 uifps_t UIFPS;
 
+errorret_t uiFPSInit() {
+  uiLabelInit(&UIFPS.fpsLabel, &FONT_DEFAULT);
+  uiLabelInit(&UIFPS.versionLabel, &FONT_DEFAULT);
+  uiLabelSetText(&UIFPS.versionLabel, ENGINE.version);
+  uiLabelSetColor(&UIFPS.versionLabel, color(255, 255, 255, 128));
+  errorOk();
+}
+
 errorret_t uiFPSDraw() {
   char_t fpsText[32];
 
@@ -50,22 +58,21 @@ errorret_t uiFPSDraw() {
     textColor = COLOR_RED;
   }
 
-  errorChain(textDraw(
+  uiLabelSetColor(&UIFPS.fpsLabel, textColor);
-    0, 0,
+  if(stringCompare(fpsText, UIFPS.fpsLabel.text) != 0) {
-    fpsText, textColor,
+    uiLabelSetText(&UIFPS.fpsLabel, fpsText);
-    &FONT_DEFAULT
+  }
+  errorChain(uiLabelDraw(
+    &UIFPS.fpsLabel, (float_t)SCREEN.scanX, (float_t)SCREEN.scanY
   ));
-  errorChain(spriteBatchFlush());
 
   int32_t versionWidth, versionHeight;
-  textMeasure(ENGINE.version, &FONT_DEFAULT, &versionWidth, &versionHeight);
+  uiLabelGetSize(&UIFPS.versionLabel, &versionWidth, &versionHeight);
-  errorChain(textDraw(
+  errorChain(uiLabelDraw(
-    (float_t)(SCREEN.width - versionWidth),
+    &UIFPS.versionLabel,
-    (float_t)(SCREEN.height - versionHeight),
+    (float_t)(SCREEN.scanX + SCREEN.scanWidth - versionWidth),
-    ENGINE.version,
+    (float_t)(SCREEN.scanY + SCREEN.scanHeight - versionHeight)
-    color(255, 255, 255, 128),
-    &FONT_DEFAULT
   ));
 
-  return spriteBatchFlush();
+  errorOk();
 }

archive/dusk/ui/debug/uifps.h

@@ -8,14 +8,24 @@
 #pragma once
 #include "error/error.h"
 #include "time/timeepoch.h"
+#include "ui/widget/uilabel.h"
 
 typedef struct {
   dusktimeepoch_t lastTick;
   float_t fpsAverage;
+  uilabel_t fpsLabel;
+  uilabel_t versionLabel;
 } uifps_t;
 
 extern uifps_t UIFPS;
 
+/**
+ * Initializes the FPS counter, caching the (static) version label.
+ *
+ * @return Any error that occurs.
+ */
+errorret_t uiFPSInit();
+
 /**
  * Draws the FPS counter on the screen, and also does the update (for now).
  *

archive/dusk/ui/focus/CMakeLists.txt

@@ -5,5 +5,5 @@
 
 target_sources(${DUSK_LIBRARY_TARGET_NAME}
   PUBLIC
-    cutscene.c
+    uifocus.c
 )

archive/dusk/ui/focus/uifocus.c

@@ -0,0 +1,190 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "uifocus.h"
+#include "assert/assert.h"
+#include "util/memory.h"
+#include "input/input.h"
+#include "time/time.h"
+
+const uifocusdirmap_t UI_FOCUS_DIR_MAP[] = {
+  { INPUT_BIND_UP,    UI_FOCUS_DIRECTION_UP,     0, -1 },
+  { INPUT_BIND_DOWN,  UI_FOCUS_DIRECTION_DOWN,   0,  1 },
+  { INPUT_BIND_LEFT,  UI_FOCUS_DIRECTION_LEFT,  -1,  0 },
+  { INPUT_BIND_RIGHT, UI_FOCUS_DIRECTION_RIGHT,  1,  0 },
+  { INPUT_BIND_NULL,  UI_FOCUS_DIRECTION_NONE,   0,  0 },
+};
+
+uifocus_t UI_FOCUS;
+
+void uiFocusInit(void) {
+  memoryZero(&UI_FOCUS, sizeof(uifocus_t));
+}
+
+uifocusitem_t * uiFocusPush(
+  const uint8_t cols,
+  const uint8_t rows,
+  uifocusitemcallback_t selected,
+  uifocusitemcallback_t changed,
+  uifocusitemcallback_t closed,
+  uifocusitemdirectioncallback_t direction,
+  void *user
+) {
+  assertTrue(
+    UI_FOCUS.count < UI_FOCUS_STACK_MAX,
+    "UI focus stack overflow"
+  );
+  assertTrue(cols > 0, "Focus item cols must be > 0");
+  assertTrue(rows > 0, "Focus item rows must be > 0");
+
+  uifocusitem_t *item = &UI_FOCUS.items[UI_FOCUS.count];
+  memoryZero(item, sizeof(uifocusitem_t));
+  item->cols = cols;
+  item->rows = rows;
+  item->selected = selected;
+  item->changed = changed;
+  item->closed = closed;
+  item->direction = direction;
+  item->user = user;
+  UI_FOCUS.count++;
+  UI_FOCUS.pushedThisTick = true;
+  if(item->changed != NULL) item->changed(item);
+  return item;
+}
+
+void uiFocusPop(void) {
+  assertTrue(UI_FOCUS.count > 0, "UI focus stack underflow");
+ 
+  uifocusitem_t *item = &UI_FOCUS.items[UI_FOCUS.count - 1];
+  if(item->closed != NULL) item->closed(item);
+  UI_FOCUS.count--;
+}
+
+void uiFocusPopItem(uifocusitem_t *item) {
+  assertTrue(UI_FOCUS.count > 0, "UI focus stack underflow");
+  assertTrue(item >= UI_FOCUS.items, "Item is not on the focus stack");
+  assertTrue(
+    item < UI_FOCUS.items + UI_FOCUS.count,
+    "Item is not on the focus stack"
+  );
+
+  while(&UI_FOCUS.items[UI_FOCUS.count - 1] != item) {
+    uiFocusPop();
+  }
+  uiFocusPop();
+}
+
+void uiFocusSetPosition(uifocusitem_t *item, const uint8_t x, const uint8_t y) {
+  assertTrue(UI_FOCUS.count > 0, "No active focus item");
+  assertTrue(item->cols > 0, "Focus item cols must be > 0");
+  assertTrue(item->rows > 0, "Focus item rows must be > 0");
+
+  uint8_t newX = x % item->cols;
+  uint8_t newY = y % item->rows;
+
+  if(item->changed != NULL) {
+    uint8_t oldX = item->x;
+    uint8_t oldY = item->y;
+    item->x = newX;
+    item->y = newY;
+    if(!item->changed(item)) {
+      item->x = oldX;
+      item->y = oldY;
+    }
+    return;
+  }
+
+  item->x = newX;
+  item->y = newY;
+}
+
+void uiFocusMoveDirection(
+  uifocusitem_t *item,
+  const uifocusdirection_t dir
+) {
+  for(
+    const uifocusdirmap_t *m = UI_FOCUS_DIR_MAP;
+    m->action != INPUT_BIND_NULL;
+    m++
+  ) {
+    if(m->direction != dir) continue;
+
+    uint8_t x = (uint8_t)(item->x + m->dx);
+    uint8_t y = (uint8_t)(item->y + m->dy);
+    uiFocusSetPosition(item, x, y);
+    break;
+  }
+}
+
+void uiFocusHandleDirection(
+  uifocusitem_t *item,
+  const uifocusdirection_t dir
+) {
+  if(item->direction != NULL && item->direction(item, dir)) return;
+  uiFocusMoveDirection(item, dir);
+}
+
+void uiFocusUpdate(void) {
+  if(UI_FOCUS.count == 0) return;
+
+  #ifdef DUSK_TIME_DYNAMIC
+    if(TIME.dynamicUpdate) return;
+  #endif
+
+  if(UI_FOCUS.pushedThisTick) {
+    UI_FOCUS.pushedThisTick = false;
+    return;
+  }
+
+  uifocusitem_t *item = &UI_FOCUS.items[UI_FOCUS.count - 1];
+
+  if(inputPressed(INPUT_BIND_ACCEPT)) {
+    if(item->selected != NULL) item->selected(item);
+    return;
+  }
+
+  if(inputPressed(INPUT_BIND_CANCEL)) {
+    uiFocusPop();
+    return;
+  }
+
+  for(
+    const uifocusdirmap_t *m = UI_FOCUS_DIR_MAP;
+    m->action != INPUT_BIND_NULL;
+    m++
+  ) {
+    if(!inputPressed(m->action)) continue;
+    UI_FOCUS.direction = m->direction;
+    UI_FOCUS.timeHeld = 0.0f;
+    uiFocusHandleDirection(item, m->direction);
+    return;
+  }
+
+  bool_t held = false;
+  for(
+    const uifocusdirmap_t *m = UI_FOCUS_DIR_MAP;
+    m->action != INPUT_BIND_NULL;
+    m++
+  ) {
+    if(m->direction != UI_FOCUS.direction) continue;
+    held = inputIsDown(m->action);
+    break;
+  }
+
+  if(!held) {
+    UI_FOCUS.direction = UI_FOCUS_DIRECTION_NONE;
+    UI_FOCUS.timeHeld = 0.0f;
+    return;
+  }
+
+  UI_FOCUS.timeHeld += TIME.delta;
+
+  if(UI_FOCUS.timeHeld < UI_FOCUS_HOLD_DELAY) return;
+  if(UI_FOCUS.timeHeld < UI_FOCUS_HOLD_DELAY + UI_FOCUS_HOLD_REPEAT) return;
+  UI_FOCUS.timeHeld = UI_FOCUS_HOLD_DELAY;
+  uiFocusHandleDirection(item, UI_FOCUS.direction);
+}

archive/dusk/ui/focus/uifocus.h

@@ -0,0 +1,133 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "uifocusitem.h"
+#include "input/inputaction.h"
+
+/** Maximum depth of the focus stack. */
+#define UI_FOCUS_STACK_MAX 8
+
+/**
+ * How long a direction must be held before repeating begins, in seconds.
+ */
+#define UI_FOCUS_HOLD_DELAY 0.5f
+
+/**
+ * Interval between repeated moves while a direction is held, in seconds.
+ */
+#define UI_FOCUS_HOLD_REPEAT 0.1f
+
+typedef struct {
+  inputbind_t action;
+  uifocusdirection_t direction;
+  int8_t dx;
+  int8_t dy;
+} uifocusdirmap_t;
+
+/**
+ * Mapping of input actions to focus directions, terminated by an
+ * entry with action == INPUT_BIND_NULL.
+ */
+extern const uifocusdirmap_t UI_FOCUS_DIR_MAP[];
+
+/**
+ * A stack of focused UI items. Push an item when a widget captures
+ * focus; pop it when focus is released. The topmost item is always
+ * the active focus context.
+ */
+typedef struct {
+  uifocusitem_t items[UI_FOCUS_STACK_MAX];
+  uint8_t count;
+  uifocusdirection_t direction;
+  float_t timeHeld;
+  bool_t pushedThisTick;
+} uifocus_t;
+
+extern uifocus_t UI_FOCUS;
+
+/**
+ * Initializes the focus system, zeroing all state.
+ */
+void uiFocusInit(void);
+
+/**
+ * Pushes a new focus item onto the stack with the given grid dimensions
+ * and callbacks. x and y are initialized to 0.
+ *
+ * @param cols      Number of columns in the focus grid.
+ * @param rows      Number of rows in the focus grid.
+ * @param selected  Called when the user selects the focused cell.
+ * @param changed   Called when the focused cell position changes.
+ * @param closed    Called when this focus item is popped.
+ * @param direction Called on a direction press/hold before the default
+ *                  cell-to-cell movement is applied; may be NULL.
+ * @param user      Arbitrary pointer stored on the item before changed fires.
+ * @returns Pointer to the newly pushed focus item.
+ */
+uifocusitem_t * uiFocusPush(
+  const uint8_t cols,
+  const uint8_t rows,
+  uifocusitemcallback_t selected,
+  uifocusitemcallback_t changed,
+  uifocusitemcallback_t closed,
+  uifocusitemdirectioncallback_t direction,
+  void *user
+);
+
+/**
+ * Pops the topmost focus item from the stack, invoking its closed
+ * callback if one is set.
+ */
+void uiFocusPop(void);
+
+/**
+ * Pops an item and anything that was pushed after it from the focus stack.
+ * 
+ * @param item The focus item to pop to. Must be on the stack.
+ */
+void uiFocusPopItem(uifocusitem_t *item);
+
+/**
+ * Manually sets the cursor position of the topmost focus item and
+ * fires its changed callback.
+ *
+ * @param x Column to move to.
+ * @param y Row to move to.
+ */
+void uiFocusSetPosition(uifocusitem_t *item, const uint8_t x, const uint8_t y);
+
+/**
+ * Moves the topmost focus item one step in the given direction,
+ * wrapping at the grid edges, and fires its changed callback.
+ *
+ * @param item The focus item to move.
+ * @param dir Direction to move.
+ */
+void uiFocusMoveDirection(
+  uifocusitem_t *item,
+  const uifocusdirection_t dir
+);
+
+/**
+ * Handles a direction press/hold for the given item: gives the item's
+ * direction callback (if any) first refusal, falling back to the
+ * default cell-to-cell movement if it's unset or returns false.
+ *
+ * @param item The focus item to move.
+ * @param dir Direction that was pressed or held.
+ */
+void uiFocusHandleDirection(
+  uifocusitem_t *item,
+  const uifocusdirection_t dir
+);
+
+/**
+ * Updates the focus system. Handles first-press movement and
+ * held-direction repeating. Called once per game tick.
+ */
+void uiFocusUpdate(void);

archive/dusk/ui/focus/uifocusitem.h

@@ -0,0 +1,57 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "dusk.h"
+
+typedef struct uifocusitem_s uifocusitem_t;
+
+typedef enum {
+  UI_FOCUS_DIRECTION_NONE,
+  UI_FOCUS_DIRECTION_UP,
+  UI_FOCUS_DIRECTION_DOWN,
+  UI_FOCUS_DIRECTION_LEFT,
+  UI_FOCUS_DIRECTION_RIGHT
+} uifocusdirection_t;
+
+/**
+ * Callback invoked when a focus item's selected cell changes.
+ *
+ * @param item The focus item that changed.
+ */
+typedef bool_t (*uifocusitemcallback_t)(const uifocusitem_t *item);
+
+/**
+ * Callback invoked when a direction is pressed or held-repeated while
+ * this item is focused, before the default cell-to-cell movement is
+ * applied.
+ *
+ * @param item The focus item that is currently focused.
+ * @param direction The direction that was pressed.
+ * @returns True if the direction was fully handled and the default
+ * grid movement should be skipped; false to fall through to it.
+ */
+typedef bool_t (*uifocusitemdirectioncallback_t)(
+  const uifocusitem_t *item,
+  const uifocusdirection_t direction
+);
+
+/**
+ * A single entry on the UI focus stack. Tracks the focused cell
+ * within a grid of cols x rows, and the current x/y position.
+ */
+struct uifocusitem_s {
+  uint8_t cols;
+  uint8_t rows;
+  uint8_t x;
+  uint8_t y;
+  uifocusitemcallback_t selected;
+  uifocusitemcallback_t changed;
+  uifocusitemcallback_t closed;
+  uifocusitemdirectioncallback_t direction;
+  void *user;
+};

archive/dusk/ui/frame/CMakeLists.txt

@@ -0,0 +1,12 @@
+# Copyright (c) 2026 Dominic Masters
+#
+# This software is released under the MIT License.
+# https://opensource.org/licenses/MIT
+
+target_sources(${DUSK_LIBRARY_TARGET_NAME}
+  PUBLIC
+    uiframe.c
+    uiconfirm.c
+)
+
+add_subdirectory(settings)

archive/dusk/ui/frame/settings/CMakeLists.txt

@@ -0,0 +1,13 @@
+# Copyright (c) 2026 Dominic Masters
+#
+# This software is released under the MIT License.
+# https://opensource.org/licenses/MIT
+
+target_sources(${DUSK_LIBRARY_TARGET_NAME}
+  PUBLIC
+    uisettings.c
+    uisettingsgeneral.c
+    uisettingsinput.c
+    uisettingsdisplay.c
+    uisettingsaudio.c
+)

archive/dusk/ui/frame/settings/uisettings.c

@@ -0,0 +1,248 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "uisettings.h"
+#include "uisettingsgeneral.h"
+#include "uisettingsinput.h"
+#include "uisettingsdisplay.h"
+#include "uisettingsaudio.h"
+#include "ui/frame/uiframe.h"
+#include "ui/frame/uiconfirm.h"
+#include "util/memory.h"
+#include "display/text/text.h"
+#include "display/screen/screen.h"
+#include "assert/assert.h"
+#include "locale/localemanager.h"
+#include "asset/loader/locale/assetlocaleloader.h"
+
+uisettings_t UI_SETTINGS;
+
+uisettingstabdef_t UI_SETTINGS_TAB_DEFS[UI_SETTINGS_TAB_COUNT] = {
+  {
+    .localeId = "ui.settings.tabs.general",
+    .init = uiSettingsGeneralInit,
+    .menu = (uimenu_t *)&UI_SETTINGS.data,
+    .load = uiSettingsGeneralLoad,
+    .apply = uiSettingsGeneralApply,
+    .hasChanges = uiSettingsGeneralHasChanges
+  },
+
+  {
+    .localeId = "ui.settings.tabs.input",
+    .init = uiSettingsInputInit,
+    .menu = (uimenu_t *)&UI_SETTINGS.data,
+    .load = uiSettingsInputLoad,
+    .apply = uiSettingsInputApply,
+    .hasChanges = uiSettingsInputHasChanges
+  },
+
+  {
+    .localeId = "ui.settings.tabs.display",
+    .init = uiSettingsDisplayInit,
+    .menu = (uimenu_t *)&UI_SETTINGS.data,
+    .load = uiSettingsDisplayLoad,
+    .apply = uiSettingsDisplayApply,
+    .hasChanges = uiSettingsDisplayHasChanges
+  },
+
+  {
+    .localeId = "ui.settings.tabs.audio",
+    .init = uiSettingsAudioInit,
+    .menu = (uimenu_t *)&UI_SETTINGS.data,
+    .load = uiSettingsAudioLoad,
+    .apply = uiSettingsAudioApply,
+    .hasChanges = uiSettingsAudioHasChanges
+  }
+};
+
+static uisettingstabdef_t UI_SETTINGS_TOP_DEF = {
+  .menu = &UI_SETTINGS.tabsMenu,
+  .load = uiSettingsLoad,
+  .hasChanges = uiSettingsHasChanges
+};
+
+static uisettingstabdef_t *UI_SETTINGS_PENDING_DISCARD = NULL;
+static uisettingstabdef_t *UI_SETTINGS_ACTIVE_TAB = NULL;
+
+errorret_t uiSettingsActivateTab(uisettingstabdef_t *def) {
+  if(def == UI_SETTINGS_ACTIVE_TAB) errorOk();
+
+  errorChain(def->init(&UI_SETTINGS.data));
+  def->menu->user = def;
+  def->load();
+  UI_SETTINGS_ACTIVE_TAB = def;
+
+  errorOk();
+}
+
+void uiSettingsTabChanged(
+  const uimenu_t *menu,
+  const uint8_t index,
+  const uimenuitem_t *item
+) {
+  if(index >= UI_SETTINGS_TAB_COUNT) return;
+  errorCatch(uiSettingsActivateTab(&UI_SETTINGS_TAB_DEFS[index]));
+}
+
+void uiSettingsTabSelected(
+  const uimenu_t *menu,
+  const uint8_t index,
+  const uimenuitem_t *item
+) {
+  if(index >= UI_SETTINGS_TAB_COUNT) return;
+
+  uisettingstabdef_t *def = &UI_SETTINGS_TAB_DEFS[index];
+  errorCatch(uiSettingsActivateTab(def));
+  uiMenuOpen(def->menu);
+}
+
+errorret_t uiSettingsInit(void) {
+  memoryZero(&UI_SETTINGS, sizeof(uisettings_t));
+  UI_SETTINGS_ACTIVE_TAB = NULL;
+
+  for(uint8_t i = 0; i < UI_SETTINGS_TAB_COUNT; i++) {
+    errorChain(assetLocaleGetString(
+      &LOCALE.entry->data.locale,
+      UI_SETTINGS_TAB_DEFS[i].localeId,
+      0,
+      UI_SETTINGS.tabLabels[i],
+      UI_SETTINGS_TAB_LABEL_MAX
+    ));
+  }
+
+  MENU_BEGIN(
+    &UI_SETTINGS.tabsMenu, UI_SETTINGS.tabs, uiSettingsTabSelected,
+    uiSettingsDiscardMenuClosed, uiSettingsTabChanged
+  );
+  for(uint8_t i = 0; i < UI_SETTINGS_TAB_COUNT; i++) {
+    MENU_TAB(UI_SETTINGS.tabLabels[i]);
+  }
+  MENU_END(UI_SETTINGS.tabs, menuIndex);
+
+  UI_SETTINGS.tabsMenu.user = &UI_SETTINGS_TOP_DEF;
+
+  errorChain(assetLocaleGetString(
+    &LOCALE.entry->data.locale,
+    "ui.settings.apply",
+    0,
+    UI_SETTINGS.applyLabel,
+    UI_SETTINGS_APPLY_LABEL_MAX
+  ));
+
+  errorChain(uiSettingsActivateTab(&UI_SETTINGS_TAB_DEFS[0]));
+
+  errorOk();
+}
+
+errorret_t uiSettingsDraw(void) {
+  if(!uiMenuIsActive(&UI_SETTINGS.tabsMenu)) errorOk();
+
+  const float_t width = SCREEN.width;
+  const float_t height = SCREEN.height;
+  const float_t x = (float_t)SCREEN.scanX +
+    ((float_t)SCREEN.scanWidth - width) * 0.5f;
+  const float_t y = (float_t)SCREEN.scanY +
+    ((float_t)SCREEN.scanHeight - height) * 0.5f;
+
+  errorChain(uiFrameDrawCached(&UI_SETTINGS.frameCache, x, y, width, height));
+
+  const float_t contentX = x + UI_FRAME_START_X;
+  const float_t contentY = y + UI_FRAME_START_Y;
+  const float_t contentWidth = width - (UI_FRAME_START_X * 2);
+  const float_t contentHeight = height - (UI_FRAME_START_Y * 2);
+
+  errorChain(uiMenuDraw(
+    &UI_SETTINGS.tabsMenu,
+    contentX,
+    contentY,
+    contentWidth,
+    contentHeight
+  ));
+
+  const float_t tabsRowHeight = (float_t)FONT_DEFAULT.tileset->tileHeight;
+  const float_t pageY = contentY + tabsRowHeight + UI_FRAME_PADDING_Y;
+  const float_t pageHeight = contentHeight - tabsRowHeight - UI_FRAME_PADDING_Y;
+
+  if(UI_SETTINGS_ACTIVE_TAB != NULL) {
+    errorChain(uiMenuDraw(
+      UI_SETTINGS_ACTIVE_TAB->menu, contentX, pageY, contentWidth, pageHeight
+    ));
+  }
+
+  errorOk();
+}
+
+errorret_t uiSettingsUpdate(void) {
+  if(!UI_SETTINGS_PENDING_DISCARD) errorOk();
+
+  uisettingstabdef_t *def = UI_SETTINGS_PENDING_DISCARD;
+  UI_SETTINGS_PENDING_DISCARD = NULL;
+
+  return uiSettingsDiscardUpdate(def);
+}
+
+bool_t uiSettingsIsOpen(void) {
+  return uiMenuIsActive(&UI_SETTINGS.tabsMenu);
+}
+
+void uiSettingsOpen() {
+  uiSettingsLoad();
+  uiMenuOpen(&UI_SETTINGS.tabsMenu);
+}
+
+void uiSettingsClose() {
+  uiMenuClose(&UI_SETTINGS.tabsMenu);
+}
+
+errorret_t uiSettingsDispose(void) {
+  errorOk();
+}
+
+void uiSettingsLoad(void) {
+  if(UI_SETTINGS_ACTIVE_TAB != NULL) UI_SETTINGS_ACTIVE_TAB->load();
+}
+
+void uiSettingsApply(void) {
+  if(UI_SETTINGS_ACTIVE_TAB != NULL) UI_SETTINGS_ACTIVE_TAB->apply();
+}
+
+bool_t uiSettingsHasChanges(void) {
+  return UI_SETTINGS_ACTIVE_TAB != NULL && UI_SETTINGS_ACTIVE_TAB->hasChanges();
+}
+
+void uiSettingsDiscardMenuClosed(const uimenu_t *menu) {
+  uisettingstabdef_t *def = (uisettingstabdef_t *)menu->user;
+  if(def->hasChanges()) UI_SETTINGS_PENDING_DISCARD = def;
+}
+
+errorret_t uiSettingsDiscardUpdate(uisettingstabdef_t *def) {
+  #define UI_SETTINGS_DISCARD_TEXT_MAX 128
+  char_t text[UI_SETTINGS_DISCARD_TEXT_MAX];
+  errorChain(assetLocaleGetString(
+    &LOCALE.entry->data.locale,
+    "ui.confirm.discard_changes",
+    0,
+    text,
+    UI_SETTINGS_DISCARD_TEXT_MAX
+  ));
+  #undef UI_SETTINGS_DISCARD_TEXT_MAX
+
+  uiConfirmOpen(text, uiSettingsDiscardConfirmResult, def);
+
+  errorOk();
+}
+
+void uiSettingsDiscardConfirmResult(const bool_t result, void *user) {
+  uisettingstabdef_t *def = (uisettingstabdef_t *)user;
+
+  if(!result) {
+    uiMenuOpen(def->menu);
+    return;
+  }
+
+  def->load();
+}

archive/dusk/ui/frame/settings/uisettings.h

@@ -0,0 +1,135 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "error/error.h"
+#include "ui/widget/uimenu.h"
+#include "ui/frame/uiframe.h"
+#include "uisettingsdata.h"
+
+#define UI_SETTINGS_TAB_COUNT 4
+#define UI_SETTINGS_TAB_LABEL_MAX 32
+#define UI_SETTINGS_APPLY_LABEL_MAX 32
+
+typedef struct {
+  const char_t *localeId;
+  errorret_t (*init)(uisettingsdata_t *data);
+  uimenu_t *menu;
+  void (*load)(void);
+  void (*apply)(void);
+  bool_t (*hasChanges)(void);
+} uisettingstabdef_t;
+
+typedef struct {
+  uimenu_t tabsMenu;
+  uimenuitem_t tabs[UI_SETTINGS_TAB_COUNT];
+  char_t tabLabels[UI_SETTINGS_TAB_COUNT][UI_SETTINGS_TAB_LABEL_MAX];
+  char_t applyLabel[UI_SETTINGS_APPLY_LABEL_MAX];
+  uisettingsdata_t data;
+  uiframecache_t frameCache;
+} uisettings_t;
+
+extern uisettings_t UI_SETTINGS;
+extern uisettingstabdef_t UI_SETTINGS_TAB_DEFS[UI_SETTINGS_TAB_COUNT];
+
+/**
+ * Menu closed callback that flags a pending discard-changes
+ * confirmation if the menu's settings page/panel reports unsaved
+ * changes. Pass this directly as a settings page menu's closed
+ * callback. The pending def is picked up by uiSettingsUpdate on the
+ * next tick.
+ *
+ * @param menu The menu that was just closed.
+ */
+void uiSettingsDiscardMenuClosed(const uimenu_t *menu);
+
+/**
+ * Shows the discard-changes confirmation dialog for def. Called once
+ * by uiSettingsUpdate when uiSettingsDiscardMenuClosed has flagged a
+ * pending def.
+ *
+ * @param def The tab/panel def to show the confirmation for.
+ * @return Any error that occurs.
+ */
+errorret_t uiSettingsDiscardUpdate(uisettingstabdef_t *def);
+
+/**
+ * Callback passed to uiConfirmOpen by uiSettingsDiscardUpdate. Reopens
+ * the menu if the user chose to keep editing, otherwise reloads the
+ * widgets back to the actual engine values.
+ *
+ * @param result True if the user confirmed discarding changes, false
+ * to keep editing.
+ * @param user The uisettingstabdef_t* this confirmation belongs to.
+ */
+void uiSettingsDiscardConfirmResult(const bool_t result, void *user);
+
+/**
+ * Initializes the settings panel and all of its category pages.
+ *
+ * @return Any error that occurs.
+ */
+errorret_t uiSettingsInit(void);
+
+/**
+ * Draws the settings panel. No-op when not visible.
+ *
+ * @return Any error that occurs.
+ */
+errorret_t uiSettingsDraw(void);
+
+/**
+ * Updates the settings panel. Shows a discard-changes confirmation if
+ * the panel was just closed with unsaved changes.
+ *
+ * @return Any error that occurs.
+ */
+errorret_t uiSettingsUpdate(void);
+
+/**
+ * Returns true when the settings panel is currently open.
+ *
+ * @returns True if open.
+ */
+bool_t uiSettingsIsOpen(void);
+
+/**
+ * Opens the settings panel. No-op when already open.
+ */
+void uiSettingsOpen();
+
+/**
+ * Closes the settings panel. No-op when already closed.
+ */
+void uiSettingsClose();
+
+/**
+ * Disposes of the settings panel.
+ *
+ * @return Any error that occurs.
+ */
+errorret_t uiSettingsDispose(void);
+
+/**
+ * Loads every category page's widgets from the current engine settings.
+ * Called automatically by uiSettingsOpen.
+ */
+void uiSettingsLoad(void);
+
+/**
+ * Applies every category page's widget values to the engine settings.
+ * Called automatically when a page's own Apply button is pressed.
+ */
+void uiSettingsApply(void);
+
+/**
+ * Returns whether any category page has a widget value that differs
+ * from what was loaded.
+ *
+ * @returns True if there are unsaved changes.
+ */
+bool_t uiSettingsHasChanges(void);

archive/dusk/ui/frame/settings/uisettingsaudio.c

@@ -0,0 +1,47 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "uisettingsaudio.h"
+#include "uisettings.h"
+#include "assert/assert.h"
+#include "util/memory.h"
+
+void uiSettingsAudioSelected(
+  const uimenu_t *menu,
+  const uint8_t index,
+  const uimenuitem_t *item
+) {
+  if(index != UI_SETTINGS_AUDIO_INDEX_APPLY) return;
+  uiSettingsAudioApply();
+}
+
+errorret_t uiSettingsAudioInit(uisettingsdata_t *data) {
+  uisettingsaudio_t *audio = &data->audio;
+  memoryZero(audio, sizeof(uisettingsaudio_t));
+
+  MENU_BEGIN(
+    &audio->menu, audio->items,
+    uiSettingsAudioSelected, uiSettingsDiscardMenuClosed, NULL
+  );
+  MENU_LABEL("No audio settings yet");
+  MENU_BUTTON(UI_SETTINGS.applyLabel);
+
+  MENU_END(audio->items, 1);
+
+  errorOk();
+}
+
+void uiSettingsAudioLoad(void) {
+}
+
+void uiSettingsAudioApply(void) {
+  uiMenuClose(&UI_SETTINGS.data.audio.menu);
+}
+
+bool_t uiSettingsAudioHasChanges(void) {
+  return false;
+}

archive/dusk/ui/frame/settings/uisettingsaudio.h

@@ -0,0 +1,36 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "error/error.h"
+#include "uisettingsdata.h"
+
+/**
+ * Initializes the audio settings page into the shared settings data
+ * union.
+ *
+ * @param data The shared settings data union to initialize into.
+ * @return Any error that occurs.
+ */
+errorret_t uiSettingsAudioInit(uisettingsdata_t *data);
+
+/**
+ * Loads the page's widgets from the current engine audio settings.
+ */
+void uiSettingsAudioLoad(void);
+
+/**
+ * Applies the page's widget values to the engine audio settings.
+ */
+void uiSettingsAudioApply(void);
+
+/**
+ * Returns whether any widget's value differs from what was loaded.
+ *
+ * @returns True if there are unsaved changes.
+ */
+bool_t uiSettingsAudioHasChanges(void);

archive/dusk/ui/frame/settings/uisettingsdata.h

@@ -0,0 +1,67 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "error/error.h"
+#include "ui/widget/uimenu.h"
+
+#define UI_SETTINGS_GENERAL_ITEM_COUNT 3
+#define UI_SETTINGS_GENERAL_INDEX_LANGUAGE 0
+#define UI_SETTINGS_GENERAL_INDEX_LANGUAGE_DETAIL 1
+#define UI_SETTINGS_GENERAL_INDEX_APPLY 2
+#define UI_SETTINGS_GENERAL_LOCALE_COUNT 3
+#define UI_SETTINGS_GENERAL_LABEL_MAX 32
+#define UI_SETTINGS_GENERAL_INFO_MAX 64
+
+typedef struct {
+  uimenu_t menu;
+  uimenuitem_t items[UI_SETTINGS_GENERAL_ITEM_COUNT];
+  const char_t *localeNames[UI_SETTINGS_GENERAL_LOCALE_COUNT];
+  char_t languageLabel[UI_SETTINGS_GENERAL_LABEL_MAX];
+  char_t labelInfo[UI_SETTINGS_GENERAL_INFO_MAX];
+} uisettingsgeneral_t;
+
+#define UI_SETTINGS_INPUT_ITEM_COUNT 2
+#define UI_SETTINGS_INPUT_LABEL_MAX 32
+#define UI_SETTINGS_INPUT_INDEX_DEADZONE 0
+#define UI_SETTINGS_INPUT_INDEX_APPLY 1
+
+typedef struct {
+  uimenu_t menu;
+  uimenuitem_t items[UI_SETTINGS_INPUT_ITEM_COUNT];
+  char_t deadzoneLabel[UI_SETTINGS_INPUT_LABEL_MAX];
+} uisettingsinput_t;
+
+#define UI_SETTINGS_DISPLAY_ITEM_COUNT 2
+#define UI_SETTINGS_DISPLAY_INDEX_APPLY 1
+
+typedef struct {
+  uimenu_t menu;
+  uimenuitem_t items[UI_SETTINGS_DISPLAY_ITEM_COUNT];
+} uisettingsdisplay_t;
+
+#define UI_SETTINGS_AUDIO_ITEM_COUNT 2
+#define UI_SETTINGS_AUDIO_INDEX_APPLY 1
+
+typedef struct {
+  uimenu_t menu;
+  uimenuitem_t items[UI_SETTINGS_AUDIO_ITEM_COUNT];
+} uisettingsaudio_t;
+
+/**
+ * Shared, overlapping storage for every settings tab's page data. Only
+ * one member is ever live at a time -- the active tab's Init writes
+ * into it, overwriting whatever the previously active tab left there.
+ * This trades simultaneous access to every tab for a memory footprint
+ * of only the single largest page.
+ */
+typedef union {
+  uisettingsgeneral_t general;
+  uisettingsinput_t input;
+  uisettingsdisplay_t display;
+  uisettingsaudio_t audio;
+} uisettingsdata_t;

archive/dusk/ui/frame/settings/uisettingsdisplay.c

@@ -0,0 +1,47 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "uisettingsdisplay.h"
+#include "uisettings.h"
+#include "assert/assert.h"
+#include "util/memory.h"
+
+void uiSettingsDisplaySelected(
+  const uimenu_t *menu,
+  const uint8_t index,
+  const uimenuitem_t *item
+) {
+  if(index != UI_SETTINGS_DISPLAY_INDEX_APPLY) return;
+  uiSettingsDisplayApply();
+}
+
+errorret_t uiSettingsDisplayInit(uisettingsdata_t *data) {
+  uisettingsdisplay_t *display = &data->display;
+  memoryZero(display, sizeof(uisettingsdisplay_t));
+
+  MENU_BEGIN(
+    &display->menu, display->items,
+    uiSettingsDisplaySelected, uiSettingsDiscardMenuClosed, NULL
+  );
+  MENU_LABEL("No display settings yet");
+  MENU_BUTTON(UI_SETTINGS.applyLabel);
+
+  MENU_END(display->items, 1);
+
+  errorOk();
+}
+
+void uiSettingsDisplayLoad(void) {
+}
+
+void uiSettingsDisplayApply(void) {
+  uiMenuClose(&UI_SETTINGS.data.display.menu);
+}
+
+bool_t uiSettingsDisplayHasChanges(void) {
+  return false;
+}

archive/dusk/ui/frame/settings/uisettingsdisplay.h

@@ -0,0 +1,36 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "error/error.h"
+#include "uisettingsdata.h"
+
+/**
+ * Initializes the display settings page into the shared settings data
+ * union.
+ *
+ * @param data The shared settings data union to initialize into.
+ * @return Any error that occurs.
+ */
+errorret_t uiSettingsDisplayInit(uisettingsdata_t *data);
+
+/**
+ * Loads the page's widgets from the current engine display settings.
+ */
+void uiSettingsDisplayLoad(void);
+
+/**
+ * Applies the page's widget values to the engine display settings.
+ */
+void uiSettingsDisplayApply(void);
+
+/**
+ * Returns whether any widget's value differs from what was loaded.
+ *
+ * @returns True if there are unsaved changes.
+ */
+bool_t uiSettingsDisplayHasChanges(void);

archive/dusk/ui/frame/settings/uisettingsgeneral.c

@@ -0,0 +1,117 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "uisettingsgeneral.h"
+#include "uisettings.h"
+#include "assert/assert.h"
+#include "util/memory.h"
+#include "util/string.h"
+#include "locale/localemanager.h"
+#include "locale/localeinfo.h"
+#include "asset/loader/locale/assetlocaleloader.h"
+
+static const localeinfo_t *const UI_SETTINGS_GENERAL_LOCALES[
+  UI_SETTINGS_GENERAL_LOCALE_COUNT
+] = {
+  &LOCALE_EN_US,
+  &LOCALE_JP_JP,
+  &LOCALE_ES_MX
+};
+
+void uiSettingsGeneralSelected(
+  const uimenu_t *menu,
+  const uint8_t index,
+  const uimenuitem_t *item
+) {
+  switch(index) {
+    case UI_SETTINGS_GENERAL_INDEX_APPLY:
+      uiSettingsGeneralApply();
+      break;
+
+    default:
+      break;
+  }
+}
+
+errorret_t uiSettingsGeneralInit(uisettingsdata_t *data) {
+  uisettingsgeneral_t *general = &data->general;
+  memoryZero(general, sizeof(uisettingsgeneral_t));
+
+  for(uint8_t i = 0; i < UI_SETTINGS_GENERAL_LOCALE_COUNT; i++) {
+    general->localeNames[i] = UI_SETTINGS_GENERAL_LOCALES[i]->name;
+  }
+
+  errorChain(assetLocaleGetString(
+    &LOCALE.entry->data.locale,
+    "ui.settings.general.language",
+    0,
+    general->languageLabel,
+    UI_SETTINGS_GENERAL_LABEL_MAX
+  ));
+  errorChain(assetLocaleGetString(
+    &LOCALE.entry->data.locale,
+    "ui.settings.general.language_detail",
+    0,
+    general->labelInfo,
+    UI_SETTINGS_GENERAL_INFO_MAX
+  ));
+
+  MENU_BEGIN(
+    &general->menu, general->items,
+    uiSettingsGeneralSelected, uiSettingsDiscardMenuClosed, NULL
+  );
+
+  MENU_DROPDOWN(
+    general->languageLabel, general->localeNames,
+    UI_SETTINGS_GENERAL_LOCALE_COUNT, 0
+  );
+  MENU_LABEL(general->labelInfo);
+
+  MENU_BUTTON(UI_SETTINGS.applyLabel);
+  MENU_END(general->items, 1);
+
+  errorOk();
+}
+
+void uiSettingsGeneralLoad(void) {
+  uisettingsgeneral_t *general = &UI_SETTINGS.data.general;
+
+  uint8_t index = 0;
+  for(uint8_t i = 0; i < UI_SETTINGS_GENERAL_LOCALE_COUNT; i++) {
+    if(stringCompare(LOCALE.locale->file, UI_SETTINGS_GENERAL_LOCALES[i]->file) != 0) {
+      continue;
+    }
+    index = i;
+    break;
+  }
+
+  uiDropdownSetSelectedIndex(
+    &general->items[UI_SETTINGS_GENERAL_INDEX_LANGUAGE].dropdown, index
+  );
+}
+
+void uiSettingsGeneralApply(void) {
+  uisettingsgeneral_t *general = &UI_SETTINGS.data.general;
+
+  uint8_t index = uiDropdownGetSelectedIndex(
+    &general->items[UI_SETTINGS_GENERAL_INDEX_LANGUAGE].dropdown
+  );
+  errorCatch(localeManagerSetLocale(UI_SETTINGS_GENERAL_LOCALES[index]));
+
+  uiMenuClose(&general->menu);
+}
+
+bool_t uiSettingsGeneralHasChanges(void) {
+  uisettingsgeneral_t *general = &UI_SETTINGS.data.general;
+
+  uint8_t index = uiDropdownGetSelectedIndex(
+    &general->items[UI_SETTINGS_GENERAL_INDEX_LANGUAGE].dropdown
+  );
+  return stringCompare(
+    LOCALE.locale->file, UI_SETTINGS_GENERAL_LOCALES[index]->file
+  ) != 0;
+}

archive/dusk/ui/frame/settings/uisettingsgeneral.h

@@ -0,0 +1,36 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "error/error.h"
+#include "uisettingsdata.h"
+
+/**
+ * Initializes the general settings page into the shared settings data
+ * union.
+ *
+ * @param data The shared settings data union to initialize into.
+ * @return Any error that occurs.
+ */
+errorret_t uiSettingsGeneralInit(uisettingsdata_t *data);
+
+/**
+ * Loads the page's widgets from the current engine general settings.
+ */
+void uiSettingsGeneralLoad(void);
+
+/**
+ * Applies the page's widget values to the engine general settings.
+ */
+void uiSettingsGeneralApply(void);
+
+/**
+ * Returns whether any widget's value differs from what was loaded.
+ *
+ * @returns True if there are unsaved changes.
+ */
+bool_t uiSettingsGeneralHasChanges(void);

archive/dusk/ui/frame/settings/uisettingsinput.c

@@ -0,0 +1,82 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "uisettingsinput.h"
+#include "uisettings.h"
+#include "assert/assert.h"
+#include "util/memory.h"
+#include "locale/localemanager.h"
+#include "asset/loader/locale/assetlocaleloader.h"
+#include "input/input.h"
+#include "save/savesettings.h"
+
+void uiSettingsInputSelected(
+  const uimenu_t *menu,
+  const uint8_t index,
+  const uimenuitem_t *item
+) {
+  if(index != UI_SETTINGS_INPUT_INDEX_APPLY) return;
+  uiSettingsInputApply();
+}
+
+errorret_t uiSettingsInputInit(uisettingsdata_t *data) {
+  uisettingsinput_t *input = &data->input;
+  memoryZero(input, sizeof(uisettingsinput_t));
+
+  MENU_BEGIN(
+    &input->menu, input->items,
+    uiSettingsInputSelected, uiSettingsDiscardMenuClosed, NULL
+  );
+  #ifdef DUSK_INPUT_GAMEPAD
+    errorChain(assetLocaleGetString(
+      &LOCALE.entry->data.locale,
+      "ui.settings.input.deadzone",
+      0,
+      input->deadzoneLabel,
+      UI_SETTINGS_INPUT_LABEL_MAX
+    ));
+    MENU_SLIDER_FLOAT(
+      input->deadzoneLabel, INPUT_DEADZONE_DEFAULT, 0.0f, 1.0f, 0.05f
+    );
+  #else
+    MENU_LABEL("No input settings yet");
+  #endif
+
+  MENU_BUTTON(UI_SETTINGS.applyLabel);
+  MENU_END(input->items, 1);
+
+  errorOk();
+}
+
+void uiSettingsInputLoad(void) {
+  #ifdef DUSK_INPUT_GAMEPAD
+    uiSliderSetFloat(
+      &UI_SETTINGS.data.input.items[UI_SETTINGS_INPUT_INDEX_DEADZONE].slider,
+      INPUT.deadzone
+    );
+  #endif
+}
+
+void uiSettingsInputApply(void) {
+  #ifdef DUSK_INPUT_GAMEPAD
+    INPUT.deadzone = uiSliderGetFloat(
+      &UI_SETTINGS.data.input.items[UI_SETTINGS_INPUT_INDEX_DEADZONE].slider
+    );
+  #endif
+  errorCatch(errorPrint(saveSettingsWrite()));
+  uiMenuClose(&UI_SETTINGS.data.input.menu);
+}
+
+bool_t uiSettingsInputHasChanges(void) {
+  #ifdef DUSK_INPUT_GAMEPAD
+    if(uiSliderGetFloat(
+      &UI_SETTINGS.data.input.items[UI_SETTINGS_INPUT_INDEX_DEADZONE].slider
+    ) != INPUT.deadzone) return true;
+  #endif
+
+  return false;
+}

archive/dusk/ui/frame/settings/uisettingsinput.h

@@ -0,0 +1,36 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "error/error.h"
+#include "uisettingsdata.h"
+
+/**
+ * Initializes the input settings page into the shared settings data
+ * union.
+ *
+ * @param data The shared settings data union to initialize into.
+ * @return Any error that occurs.
+ */
+errorret_t uiSettingsInputInit(uisettingsdata_t *data);
+
+/**
+ * Loads the page's widgets from the current engine input settings.
+ */
+void uiSettingsInputLoad(void);
+
+/**
+ * Applies the page's widget values to the engine input settings.
+ */
+void uiSettingsInputApply(void);
+
+/**
+ * Returns whether any widget's value differs from what was loaded.
+ *
+ * @returns True if there are unsaved changes.
+ */
+bool_t uiSettingsInputHasChanges(void);

archive/dusk/ui/frame/uiconfirm.c

@@ -0,0 +1,126 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "uiconfirm.h"
+#include "uiframe.h"
+#include "assert/assert.h"
+#include "util/memory.h"
+#include "util/math.h"
+#include "display/screen/screen.h"
+#include "display/text/text.h"
+#include "display/color.h"
+#include "display/spritebatch/spritebatch.h"
+#include "display/texture/texture.h"
+#include "display/shader/shaderunlit.h"
+
+#define UI_CONFIRM_BACKDROP_COLOR color4b(0, 0, 0, 160)
+
+uiconfirm_t UI_CONFIRM;
+
+void uiConfirmSelected(
+  const uimenu_t *menu,
+  const uint8_t index,
+  const uimenuitem_t *item
+) {
+  UI_CONFIRM.result = index == UI_CONFIRM_INDEX_CONFIRM;
+  uiConfirmClose();
+}
+
+void uiConfirmClosed(const uimenu_t *menu) {
+  if(UI_CONFIRM.callback != NULL) {
+    UI_CONFIRM.callback(UI_CONFIRM.result, UI_CONFIRM.user);
+  }
+}
+
+errorret_t uiConfirmInit(void) {
+  memoryZero(&UI_CONFIRM, sizeof(uiconfirm_t));
+  uiLabelInit(&UI_CONFIRM.textLabel, &FONT_DEFAULT);
+
+  MENU_BEGIN(
+    &UI_CONFIRM.menu, UI_CONFIRM.items, uiConfirmSelected, uiConfirmClosed, NULL
+  );
+  MENU_BUTTON("Confirm");
+  MENU_BUTTON("Cancel");
+
+  MENU_END(UI_CONFIRM.items, menuIndex);
+
+  errorOk();
+}
+
+errorret_t uiConfirmDraw(void) {
+  if(!uiMenuIsActive(&UI_CONFIRM.menu)) errorOk();
+
+  spritebatchsprite_t backdropSprite = {
+    .min = { 0.0f, 0.0f, 0.0f },
+    .max = { (float_t)SCREEN.width, (float_t)SCREEN.height, 0.0f },
+    .uvMin = { 0.0f, 0.0f },
+    .uvMax = { 1.0f, 1.0f }
+  };
+  shadermaterial_t backdropMaterial = {
+    .unlit = {
+      .color = UI_CONFIRM_BACKDROP_COLOR,
+      .texture = &TEXTURE_WHITE
+    }
+  };
+  errorChain(
+    spriteBatchBuffer(&backdropSprite, 1, &SHADER_UNLIT, backdropMaterial)
+  );
+
+  int32_t textW, textH;
+  uiLabelGetSize(&UI_CONFIRM.textLabel, &textW, &textH);
+
+  float_t rowHeight = (float_t)FONT_DEFAULT.tileset->tileHeight;
+  float_t width = mathMax(
+    (float_t)textW + (UI_FRAME_START_X * 2), UI_CONFIRM_MIN_WIDTH
+  );
+  float_t height = (UI_FRAME_START_Y * 2) + rowHeight + UI_FRAME_PADDING_Y +
+    rowHeight;
+  float_t x = (float_t)SCREEN.scanX + ((float_t)SCREEN.scanWidth - width) * 0.5f;
+  float_t y = (float_t)SCREEN.scanY + ((float_t)SCREEN.scanHeight - height) * 0.5f;
+
+  errorChain(uiFrameDrawCached(&UI_CONFIRM.frameCache, x, y, width, height));
+
+  float_t contentX = x + UI_FRAME_START_X;
+  float_t contentY = y + UI_FRAME_START_Y;
+  float_t contentWidth = width - (UI_FRAME_START_X * 2);
+
+  errorChain(uiLabelDraw(&UI_CONFIRM.textLabel, contentX, contentY));
+
+  float_t buttonsY = contentY + rowHeight + UI_FRAME_PADDING_Y;
+  errorChain(uiMenuDraw(&UI_CONFIRM.menu, contentX, buttonsY, contentWidth, rowHeight));
+
+  errorOk();
+}
+
+bool_t uiConfirmIsOpen(void) {
+  return uiMenuIsActive(&UI_CONFIRM.menu);
+}
+
+bool_t uiConfirmGetResult(void) {
+  return UI_CONFIRM.result;
+}
+
+void uiConfirmOpen(
+  const char_t *question,
+  uiconfirmcallback_t callback,
+  void *user
+) {
+  assertNotNull(question, "Question cannot be NULL");
+  uiLabelSetText(&UI_CONFIRM.textLabel, question);
+  UI_CONFIRM.callback = callback;
+  UI_CONFIRM.user = user;
+  UI_CONFIRM.result = false;
+  uiMenuOpen(&UI_CONFIRM.menu);
+}
+
+void uiConfirmClose(void) {
+  uiMenuClose(&UI_CONFIRM.menu);
+}
+
+errorret_t uiConfirmDispose(void) {
+  errorOk();
+}

archive/dusk/ui/frame/uiconfirm.h

@@ -0,0 +1,96 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "error/error.h"
+#include "ui/widget/uimenu.h"
+#include "ui/widget/uilabel.h"
+#include "ui/frame/uiframe.h"
+
+#define UI_CONFIRM_MIN_WIDTH 160.0f
+#define UI_CONFIRM_INDEX_CONFIRM 0
+#define UI_CONFIRM_INDEX_CANCEL 1
+#define UI_CONFIRM_ITEM_COUNT 2
+
+/**
+ * Callback invoked once a confirm dialog is dismissed.
+ *
+ * @param result True if Confirm was selected, false if Cancel was
+ * selected or the dialog was backed out of.
+ * @param user Arbitrary pointer passed to uiConfirmOpen.
+ */
+typedef void (*uiconfirmcallback_t)(const bool_t result, void *user);
+
+typedef struct {
+  uilabel_t textLabel;
+  uimenu_t menu;
+  uimenuitem_t items[UI_CONFIRM_ITEM_COUNT];
+  uiconfirmcallback_t callback;
+  void *user;
+  bool_t result;
+  uiframecache_t frameCache;
+} uiconfirm_t;
+
+extern uiconfirm_t UI_CONFIRM;
+
+/**
+ * Initializes the confirm dialog.
+ *
+ * @return Any error that occurs.
+ */
+errorret_t uiConfirmInit(void);
+
+/**
+ * Draws the confirm dialog: a semi-transparent black backdrop covering
+ * the whole screen, then its own centered frame with the question text
+ * and Confirm/Cancel buttons. No-op when not open.
+ *
+ * @return Any error that occurs.
+ */
+errorret_t uiConfirmDraw(void);
+
+/**
+ * Returns true when the confirm dialog is currently open.
+ *
+ * @returns True if open.
+ */
+bool_t uiConfirmIsOpen(void);
+
+/**
+ * Returns the result of the most recently dismissed confirm dialog.
+ *
+ * @returns True if Confirm was selected, false otherwise.
+ */
+bool_t uiConfirmGetResult(void);
+
+/**
+ * Opens the confirm dialog with the given question text. callback is
+ * invoked exactly once with the result, whether the dialog was
+ * dismissed by selecting a button or by pressing cancel/back.
+ *
+ * @param question Display text; copied internally, safe to be transient.
+ * @param callback Called with the result once the dialog closes. May be
+ * NULL.
+ * @param user Arbitrary pointer passed through to callback.
+ */
+void uiConfirmOpen(
+  const char_t *question,
+  uiconfirmcallback_t callback,
+  void *user
+);
+
+/**
+ * Closes the confirm dialog. No-op when already closed.
+ */
+void uiConfirmClose(void);
+
+/**
+ * Disposes of the confirm dialog.
+ *
+ * @return Any error that occurs.
+ */
+errorret_t uiConfirmDispose(void);

archive/dusk/ui/frame/uiframe.c

@@ -0,0 +1,161 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "uiframe.h"
+#include "assert/assert.h"
+#include "util/memory.h"
+#include "display/texture/texture.h"
+#include "display/spritebatch/spritebatch.h"
+#include "display/shader/shaderunlit.h"
+#include "display/color.h"
+
+uiframe_t UI_FRAME;
+
+errorret_t uiFrameInit(void) {
+  memoryZero(&UI_FRAME, sizeof(uiframe_t));
+  
+  // Init texture.
+  color_t border = color4b(0, 50, 255, 255);
+  color_t center = color4b(0, 100, 220, 240);
+
+  for(uint8_t y = 0; y < UI_FRAME_TEXTURE_HEIGHT_POW2; y++) {
+    for(uint8_t x = 0; x < UI_FRAME_TEXTURE_WIDTH_POW2; x++) {
+      color_t c;
+      if(x >= UI_FRAME_TEXTURE_WIDTH || y >= UI_FRAME_TEXTURE_HEIGHT) {
+        c = COLOR_TRANSPARENT;
+      } else if(
+        y < UI_FRAME_TILE_HEIGHT || y >= UI_FRAME_TILE_HEIGHT * 2 ||
+        x < UI_FRAME_TILE_WIDTH  || x >= UI_FRAME_TILE_WIDTH * 2
+      ) {
+        c = border;
+      } else {
+        c = center;
+      }
+      UI_FRAME.pixels[y * UI_FRAME_TEXTURE_WIDTH_POW2 + x] = c;
+    }
+  }
+
+  errorChain(textureInit(
+    &UI_FRAME.texture,
+    UI_FRAME_TEXTURE_WIDTH_POW2, UI_FRAME_TEXTURE_HEIGHT_POW2,
+    TEXTURE_FORMAT_RGBA,
+    (texturedata_t){ .rgbaColors = UI_FRAME.pixels }
+  ));
+
+  UI_FRAME.tileset.tileWidth = UI_FRAME_TILE_WIDTH;
+  UI_FRAME.tileset.tileHeight = UI_FRAME_TILE_HEIGHT;
+  UI_FRAME.tileset.columns = 3;
+  UI_FRAME.tileset.rows = 3;
+  UI_FRAME.tileset.tileCount = 9;
+  UI_FRAME.tileset.uv[0] =
+    (float_t)UI_FRAME_TILE_WIDTH / UI_FRAME_TEXTURE_WIDTH_POW2;
+  UI_FRAME.tileset.uv[1] =
+    (float_t)UI_FRAME_TILE_HEIGHT / UI_FRAME_TEXTURE_HEIGHT_POW2;
+
+  errorOk();
+}
+
+errorret_t uiFrameDraw(
+  const float_t x,
+  const float_t y,
+  const float_t width,
+  const float_t height
+) {
+  shadermaterial_t material = {
+    .unlit = {
+      .color = COLOR_WHITE,
+      .texture = &UI_FRAME.texture
+    }
+  };
+  spritebatchsprite_t sprites[9];
+  uiFrameBuildSprites(sprites, x, y, width, height);
+  return spriteBatchBuffer(sprites, 9, &SHADER_UNLIT, material);
+}
+
+void uiFrameBuildSprites(
+  spritebatchsprite_t sprites[9],
+  const float_t x,
+  const float_t y,
+  const float_t width,
+  const float_t height
+) {
+  float_t tileW = (float_t)UI_FRAME_BORDER_WIDTH;
+  float_t tileH = (float_t)UI_FRAME_BORDER_HEIGHT;
+
+  sprites[0] = spriteBatchSpriteTilesetPosition(
+    &UI_FRAME.tileset, 0, 0,
+    x, y, tileW, tileH
+  );
+  sprites[1] = spriteBatchSpriteTilesetPosition(
+    &UI_FRAME.tileset, 1, 0,
+    x + tileW, y, width - (tileW * 2.0f), tileH
+  );
+  sprites[2] = spriteBatchSpriteTilesetPosition(
+    &UI_FRAME.tileset, 2, 0,
+    x + width - tileW, y, tileW, tileH
+  );
+  sprites[3] = spriteBatchSpriteTilesetPosition(
+    &UI_FRAME.tileset, 0, 1,
+    x, y + tileH, tileW, height - (tileH * 2.0f)
+  );
+  sprites[4] = spriteBatchSpriteTilesetPosition(
+    &UI_FRAME.tileset, 1, 1,
+    x + tileW, y + tileH,
+    width - (tileW * 2.0f), height - (tileH * 2.0f)
+  );
+  sprites[5] = spriteBatchSpriteTilesetPosition(
+    &UI_FRAME.tileset, 2, 1,
+    x + width - tileW, y + tileH, tileW, height - (tileH * 2.0f)
+  );
+  sprites[6] = spriteBatchSpriteTilesetPosition(
+    &UI_FRAME.tileset, 0, 2,
+    x, y + height - tileH, tileW, tileH
+  );
+  sprites[7] = spriteBatchSpriteTilesetPosition(
+    &UI_FRAME.tileset, 1, 2,
+    x + tileW, y + height - tileH, width - (tileW * 2.0f), tileH
+  );
+  sprites[8] = spriteBatchSpriteTilesetPosition(
+    &UI_FRAME.tileset, 2, 2,
+    x + width - tileW, y + height - tileH, tileW, tileH
+  );
+}
+
+errorret_t uiFrameDrawCached(
+  uiframecache_t *cache,
+  const float_t x,
+  const float_t y,
+  const float_t width,
+  const float_t height
+) {
+  assertNotNull(cache, "Frame cache cannot be NULL");
+
+  if(
+    !cache->built ||
+    cache->lastX != x || cache->lastY != y ||
+    cache->lastWidth != width || cache->lastHeight != height
+  ) {
+    uiFrameBuildSprites(cache->sprites, x, y, width, height);
+    cache->lastX = x;
+    cache->lastY = y;
+    cache->lastWidth = width;
+    cache->lastHeight = height;
+    cache->built = true;
+  }
+
+  shadermaterial_t material = {
+    .unlit = {
+      .color = COLOR_WHITE,
+      .texture = &UI_FRAME.texture
+    }
+  };
+  return spriteBatchBuffer(cache->sprites, 9, &SHADER_UNLIT, material);
+}
+
+errorret_t uiFrameDispose(void) {
+  return textureDispose(&UI_FRAME.texture);
+}

archive/dusk/ui/frame/uiframe.h

@@ -0,0 +1,122 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "error/error.h"
+#include "display/texture/texture.h"
+#include "display/texture/tileset.h"
+#include "display/spritebatch/spritebatchsprite.h"
+
+#define UI_FRAME_BORDER_WIDTH 6
+#define UI_FRAME_BORDER_HEIGHT 6
+#define UI_FRAME_PADDING_X 2
+#define UI_FRAME_PADDING_Y 2
+#define UI_FRAME_START_X (UI_FRAME_BORDER_WIDTH + UI_FRAME_PADDING_X)
+#define UI_FRAME_START_Y (UI_FRAME_BORDER_HEIGHT + UI_FRAME_PADDING_Y)
+#define UI_FRAME_TILE_WIDTH 1
+#define UI_FRAME_TILE_HEIGHT 1
+#define UI_FRAME_TEXTURE_WIDTH (UI_FRAME_TILE_WIDTH * 3)
+#define UI_FRAME_TEXTURE_HEIGHT (UI_FRAME_TILE_HEIGHT * 3)
+#define UI_FRAME_TEXTURE_WIDTH_POW2 4
+#define UI_FRAME_TEXTURE_HEIGHT_POW2 4 
+
+typedef struct {
+  tileset_t tileset;
+  texture_t texture;
+  color_t pixels[UI_FRAME_BORDER_WIDTH * UI_FRAME_BORDER_HEIGHT];
+} uiframe_t;
+
+extern uiframe_t UI_FRAME;
+
+/**
+ * Initializes the global UI_FRAME: builds the dummy texture and
+ * configures the tileset. Call once after displayInit().
+ *
+ * @return Any error that occurs.
+ */
+errorret_t uiFrameInit(void);
+
+/**
+ * Draws UI_FRAME using 9-slice rendering from its 3x3 tileset.
+ * Pushes quads to the sprite batch without flushing.
+ *
+ * @param x Screen x position.
+ * @param y Screen y position.
+ * @param width Total width of the frame.
+ * @param height Total height of the frame.
+ * @return Any error that occurs.
+ */
+errorret_t uiFrameDraw(
+  const float_t x,
+  const float_t y,
+  const float_t width,
+  const float_t height
+);
+
+/**
+ * Builds the 9 sprites for a 9-slice frame at the given rect. Used
+ * internally by uiFrameDraw and uiFrameDrawCached -- call directly only
+ * if you need the raw sprites instead of buffering them.
+ *
+ * @param sprites Destination array of exactly 9 sprites.
+ * @param x Screen x position.
+ * @param y Screen y position.
+ * @param width Total width of the frame.
+ * @param height Total height of the frame.
+ */
+void uiFrameBuildSprites(
+  spritebatchsprite_t sprites[9],
+  const float_t x,
+  const float_t y,
+  const float_t width,
+  const float_t height
+);
+
+/**
+ * A frame's cached 9-slice sprites, plus the rect they were built for.
+ * Owned by whichever widget/screen draws a frame repeatedly (dialogs,
+ * textboxes, settings panels) so uiFrameDrawCached can skip rebuilding
+ * the sprites when the rect hasn't moved since the last draw.
+ */
+typedef struct {
+  spritebatchsprite_t sprites[9];
+  bool_t built;
+  float_t lastX;
+  float_t lastY;
+  float_t lastWidth;
+  float_t lastHeight;
+} uiframecache_t;
+
+/**
+ * Draws a 9-slice frame using a caller-owned cache, only rebuilding the
+ * sprites (via uiFrameBuildSprites) when x/y/width/height differ from
+ * the last call -- unlike uiFrameDraw, which rebuilds unconditionally
+ * every time. Prefer this for frames redrawn every frame at a fixed or
+ * rarely-changing rect (dialogs, panels); use plain uiFrameDraw for
+ * genuinely one-off or per-frame-varying rects.
+ *
+ * @param cache Caller-owned cache, zero-initialized before first use.
+ * @param x Screen x position.
+ * @param y Screen y position.
+ * @param width Total width of the frame.
+ * @param height Total height of the frame.
+ * @return Any error that occurs.
+ */
+errorret_t uiFrameDrawCached(
+  uiframecache_t *cache,
+  const float_t x,
+  const float_t y,
+  const float_t width,
+  const float_t height
+);
+
+/**
+ * Disposes of the global UI_FRAME, releasing its GPU texture.
+ *
+ * @return Any error that occurs.
+ */
+errorret_t uiFrameDispose(void);

archive/dusk/ui/overlay/CMakeLists.txt

@@ -0,0 +1,11 @@
+# Copyright (c) 2026 Dominic Masters
+#
+# This software is released under the MIT License.
+# https://opensource.org/licenses/MIT
+
+target_sources(${DUSK_LIBRARY_TARGET_NAME}
+  PUBLIC
+    uicrop.c
+    uifullbox.c
+    uiloading.c
+)

archive/dusk/ui/overlay/uicrop.c

@@ -0,0 +1,89 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "uicrop.h"
+#include "display/screen/screen.h"
+#include "display/spritebatch/spritebatch.h"
+#include "display/shader/shaderunlit.h"
+#include "display/texture/texture.h"
+
+uicrop_t UI_CROP;
+
+errorret_t uiCropInit(void) {
+  UI_CROP.color = COLOR_BLACK;
+  errorOk();
+}
+
+errorret_t uiCropDraw(void) {
+  #ifndef DUSK_DISPLAY_SIZE_DYNAMIC
+    errorOk();
+  #endif
+
+  if(
+    SCREEN.scanX == 0 &&
+    SCREEN.scanY == 0 &&
+    SCREEN.scanWidth == SCREEN.width &&
+    SCREEN.scanHeight == SCREEN.height
+  ) errorOk();
+
+  float_t x0 = (float_t)SCREEN.scanX;
+  float_t y0 = (float_t)SCREEN.scanY;
+  float_t x1 = (float_t)(SCREEN.scanX + SCREEN.scanWidth);
+  float_t y1 = (float_t)(SCREEN.scanY + SCREEN.scanHeight);
+  float_t w = (float_t)SCREEN.width;
+  float_t h = (float_t)SCREEN.height;
+
+  spritebatchsprite_t sprites[4];
+  int32_t count = 0;
+
+  if(SCREEN.scanX > 0) {
+    sprites[count++] = (spritebatchsprite_t){
+      .min = { 0.0f, 0.0f, 0.0f },
+      .max = { x0, h, 0.0f },
+      .uvMin = { 0.0f, 0.0f },
+      .uvMax = { 1.0f, 1.0f }
+    };
+  }
+
+  if(SCREEN.scanX + SCREEN.scanWidth < SCREEN.width) {
+    sprites[count++] = (spritebatchsprite_t){
+      .min = { x1, 0.0f, 0.0f },
+      .max = { w, h, 0.0f },
+      .uvMin = { 0.0f, 0.0f },
+      .uvMax = { 1.0f, 1.0f }
+    };
+  }
+
+  if(SCREEN.scanY > 0) {
+    sprites[count++] = (spritebatchsprite_t){
+      .min = { x0, 0.0f, 0.0f },
+      .max = { x1, y0, 0.0f },
+      .uvMin = { 0.0f, 0.0f },
+      .uvMax = { 1.0f, 1.0f }
+    };
+  }
+
+  if(SCREEN.scanY + SCREEN.scanHeight < SCREEN.height) {
+    sprites[count++] = (spritebatchsprite_t){
+      .min = { x0, y1, 0.0f },
+      .max = { x1, h, 0.0f },
+      .uvMin = { 0.0f, 0.0f },
+      .uvMax = { 1.0f, 1.0f }
+    };
+  }
+
+  if(count == 0) errorOk();
+
+  shadermaterial_t material = {
+    .unlit = {
+      .color = UI_CROP.color,
+      .texture = &TEXTURE_WHITE
+    }
+  };
+  errorChain(spriteBatchBuffer(sprites, count, &SHADER_UNLIT, material));
+  errorOk();
+}

archive/dusk/ui/overlay/uicrop.h

@@ -0,0 +1,32 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "error/error.h"
+#include "display/color.h"
+
+typedef struct {
+  color_t color;
+} uicrop_t;
+
+extern uicrop_t UI_CROP;
+
+/**
+ * Initializes the crop bars to opaque black.
+ *
+ * @return Any error that occurs.
+ */
+errorret_t uiCropInit(void);
+
+/**
+ * Renders solid-color bars covering every area outside the
+ * current scan-safe region. No-ops when the scan area equals
+ * the full viewport.
+ *
+ * @return Any error that occurs.
+ */
+errorret_t uiCropDraw(void);

archive/dusk/ui/overlay/uifullbox.c

@@ -8,6 +8,7 @@
 #include "uifullbox.h"
 #include "assert/assert.h"
 #include "util/memory.h"
+#include "time/time.h"
 #include "display/screen/screen.h"
 #include "display/texture/texture.h"
 #include "display/spritebatch/spritebatch.h"
@@ -74,7 +75,7 @@ errorret_t uiFullboxDraw(uifullbox_t *fullbox) {
     }
   };
   errorChain(spriteBatchBuffer(&sprite, 1, &SHADER_UNLIT, material));
-  return spriteBatchFlush();
+  errorOk();
 }
 
 void uiFullboxTransition(
@@ -92,10 +93,30 @@ void uiFullboxTransition(
   fullbox->easing = easing;
 }
 
+errorret_t uiFullboxUnderInit(void) {
+  uiFullboxInit(&UI_FULLBOX_UNDER);
+  errorOk();
+}
+
+errorret_t uiFullboxUnderUpdate(void) {
+  uiFullboxUpdate(&UI_FULLBOX_UNDER, TIME.delta);
+  errorOk();
+}
+
 errorret_t uiFullboxUnderDraw(void) {
   return uiFullboxDraw(&UI_FULLBOX_UNDER);
 }
 
+errorret_t uiFullboxOverInit(void) {
+  uiFullboxInit(&UI_FULLBOX_OVER);
+  errorOk();
+}
+
+errorret_t uiFullboxOverUpdate(void) {
+  uiFullboxUpdate(&UI_FULLBOX_OVER, TIME.delta);
+  errorOk();
+}
+
 errorret_t uiFullboxOverDraw(void) {
   return uiFullboxDraw(&UI_FULLBOX_OVER);
 }

archive/dusk/ui/overlay/uifullbox.h

@@ -66,12 +66,44 @@ void uiFullboxTransition(
   easingtype_t easing
 );
 
+/**
+ * Init function for UI_FULLBOX_UNDER (registered in UI_ELEMENTS).
+ *
+ * @return Any error that occurs.
+ */
+errorret_t uiFullboxUnderInit(void);
+
+/**
+ * Update function for UI_FULLBOX_UNDER (registered in UI_ELEMENTS).
+ *
+ * @return Any error that occurs.
+ */
+errorret_t uiFullboxUnderUpdate(void);
+
 /**
  * Draw function for UI_FULLBOX_UNDER (registered in UI_ELEMENTS).
+ *
+ * @return Any error that occurs.
  */
 errorret_t uiFullboxUnderDraw(void);
 
+/**
+ * Init function for UI_FULLBOX_OVER (registered in UI_ELEMENTS).
+ *
+ * @return Any error that occurs.
+ */
+errorret_t uiFullboxOverInit(void);
+
+/**
+ * Update function for UI_FULLBOX_OVER (registered in UI_ELEMENTS).
+ *
+ * @return Any error that occurs.
+ */
+errorret_t uiFullboxOverUpdate(void);
+
 /**
  * Draw function for UI_FULLBOX_OVER (registered in UI_ELEMENTS).
+ *
+ * @return Any error that occurs.
  */
 errorret_t uiFullboxOverDraw(void);

archive/dusk/ui/overlay/uiloading.c

@@ -8,33 +8,37 @@
 #include "uiloading.h"
 #include "assert/assert.h"
 #include "util/memory.h"
+#include "time/time.h"
 #include "display/text/text.h"
 #include "display/screen/screen.h"
-#include "display/spritebatch/spritebatch.h"
+#include "uifullbox.h"
-#include "ui/uifullbox.h"
 
 #define UI_LOADING_TEXT "loading"
 
 uiloading_t UI_LOADING;
 
-void uiLoadingInit(void) {
+errorret_t uiLoadingInit(void) {
   memoryZero(&UI_LOADING, sizeof(uiloading_t));
+  uiLabelInit(&UI_LOADING.textLabel, &FONT_DEFAULT);
+  uiLabelSetText(&UI_LOADING.textLabel, UI_LOADING_TEXT);
   eventInit(
     &UI_LOADING.onTransitionEnd,
     UI_LOADING.onTransitionEndCallbacks,
     UI_LOADING.onTransitionEndUsers,
     4
   );
+  errorOk();
 }
 
-void uiLoadingUpdate(float_t delta) {
+errorret_t uiLoadingUpdate(void) {
-  if(UI_LOADING.duration <= 0.0f || UI_LOADING.time >= UI_LOADING.duration)
+  if(UI_LOADING.duration > 0.0f && UI_LOADING.time < UI_LOADING.duration) {
-    return;
+    UI_LOADING.time += TIME.delta;
-  UI_LOADING.time += delta;
     if(UI_LOADING.time >= UI_LOADING.duration) {
       UI_LOADING.time = UI_LOADING.duration;
       eventInvoke(&UI_LOADING.onTransitionEnd, &UI_LOADING);
     }
+  }
+  errorOk();
 }
 
 errorret_t uiLoadingDraw(void) {
@@ -50,16 +54,19 @@ errorret_t uiLoadingDraw(void) {
   if(alpha <= 0.0f) errorOk();
 
   int32_t textW, textH;
-  textMeasure(UI_LOADING_TEXT, &FONT_DEFAULT, &textW, &textH);
+  uiLabelGetSize(&UI_LOADING.textLabel, &textW, &textH);
 
-  float_t x = (float_t)SCREEN.width - (float_t)textW - UI_LOADING_MARGIN;
+  float_t x = (float_t)(SCREEN.scanX + SCREEN.scanWidth) -
-  float_t y = (float_t)SCREEN.height - (float_t)textH - UI_LOADING_MARGIN;
+    (float_t)textW - UI_LOADING_MARGIN;
+  float_t y = (float_t)(SCREEN.scanY + SCREEN.scanHeight) -
+    (float_t)textH - UI_LOADING_MARGIN;
 
   color_t color = COLOR_WHITE;
   color.a = (uint8_t)(alpha * 255.0f);
+  uiLabelSetColor(&UI_LOADING.textLabel, color);
 
-  errorChain(textDraw(x, y, UI_LOADING_TEXT, color, &FONT_DEFAULT));
+  errorChain(uiLabelDraw(&UI_LOADING.textLabel, x, y));
-  return spriteBatchFlush();
+  errorOk();
 }
 
 static void uiLoadingTransition(

archive/dusk/ui/overlay/uiloading.h

@@ -8,6 +8,7 @@
 #pragma once
 #include "error/error.h"
 #include "event/event.h"
+#include "ui/widget/uilabel.h"
 
 #define UI_LOADING_FADE_DURATION 0.5f
 #define UI_LOADING_MARGIN 8.0f
@@ -20,22 +21,25 @@ typedef struct {
   eventcallback_t onTransitionEndCallbacks[4];
   void *onTransitionEndUsers[4];
   event_t onTransitionEnd;
+  uilabel_t textLabel;
 } uiloading_t;
 
 extern uiloading_t UI_LOADING;
 
 /**
  * Initializes the loading indicator.
+ *
+ * @return Any error that occurs.
  */
-void uiLoadingInit(void);
+errorret_t uiLoadingInit(void);
 
 /**
  * Advances the loading indicator fade transition. Fires onTransitionEnd once
  * when the transition completes.
  *
- * @param delta Seconds elapsed since last update.
+ * @return Any error that occurs.
  */
-void uiLoadingUpdate(float_t delta);
+errorret_t uiLoadingUpdate(void);
 
 /**
  * Draws the loading indicator. No-op when fully transparent.

archive/dusk/ui/transition/CMakeLists.txt

@@ -0,0 +1,10 @@
+# Copyright (c) 2026 Dominic Masters
+#
+# This software is released under the MIT License.
+# https://opensource.org/licenses/MIT
+
+target_sources(${DUSK_LIBRARY_TARGET_NAME}
+  PUBLIC
+    uitransition.c
+    uitransitionfade.c
+)

archive/dusk/ui/transition/uitransition.c

@@ -0,0 +1,81 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "uitransition.h"
+#include "uitransitionfade.h"
+#include "assert/assert.h"
+#include "util/memory.h"
+#include "time/time.h"
+#include "util/math.h"
+
+uitransition_t UI_TRANSITION;
+
+uitransitiondrawfunc_t UI_TRANSITION_TYPE_DRAW[UI_TRANSITION_TYPE_COUNT] = {
+  [UI_TRANSITION_TYPE_FADE] = uiTransitionFadeDraw
+};
+
+errorret_t uiTransitionInit(void) {
+  memoryZero(&UI_TRANSITION, sizeof(uitransition_t));
+
+  // uiTransitionStart((uitransitionstartparams_t){
+  //   .duration = 5.0f,
+  //   .type = UI_TRANSITION_TYPE_FADE,
+  //   .params = {
+  //     .fade = {
+  //       .easing = EASING_OUT_QUART,
+  //       .fromColor = COLOR_TRANSPARENT_BLACK,
+  //       .toColor = COLOR_BLACK
+  //     }
+  //   },
+  //   .finished = NULL,
+  //   .user = NULL
+  // });
+
+  errorOk();
+}
+
+errorret_t uiTransitionUpdate(void) {
+  // Update time.
+  float_t newTime = UI_TRANSITION.data.time + TIME.delta;
+
+  UI_TRANSITION.data.time = mathClamp(
+    newTime,
+    0.0f,
+    UI_TRANSITION.data.duration
+  );
+  UI_TRANSITION.data.t = (
+    (UI_TRANSITION.data.duration <= 0.0f) ?
+    1.0f :
+    (UI_TRANSITION.data.time / UI_TRANSITION.data.duration)
+  );
+
+  if(UI_TRANSITION.data.t >= 1.0f && UI_TRANSITION.finished) {
+    UI_TRANSITION.finished(UI_TRANSITION.user);
+  }
+
+  errorOk();
+}
+
+errorret_t uiTransitionDraw(void) {
+  uitransitiondrawfunc_t draw = UI_TRANSITION_TYPE_DRAW[UI_TRANSITION.type];
+  if(!draw) errorOk();
+  return draw(&UI_TRANSITION.data);
+}
+
+void uiTransitionStart(const uitransitionstartparams_t info) {
+  assertTrue(info.type > UI_TRANSITION_TYPE_NULL, "Invalid type");
+  assertTrue(info.type < UI_TRANSITION_TYPE_COUNT, "Invalid type");
+  assertTrue(info.duration >= 0.0f, "Duration must be non-negative");
+
+  memoryZero(&UI_TRANSITION, sizeof(uitransition_t));
+
+  UI_TRANSITION.data.duration = info.duration;
+  UI_TRANSITION.type = info.type;
+  UI_TRANSITION.data.params = info.params;
+  UI_TRANSITION.finished = info.finished;
+  UI_TRANSITION.user = info.user;
+}

archive/dusk/ui/transition/uitransition.h

@@ -0,0 +1,74 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "error/error.h"
+#include "display/color.h"
+#include "animation/easing.h"
+#include "uitransitiondata.h"
+
+typedef void (*uitransitioncallback_t)(void *user);
+
+typedef enum {
+  UI_TRANSITION_TYPE_NULL,
+
+  UI_TRANSITION_TYPE_FADE,
+
+  UI_TRANSITION_TYPE_COUNT
+} uitransitiontype_t;
+
+extern uitransitiondrawfunc_t UI_TRANSITION_TYPE_DRAW[UI_TRANSITION_TYPE_COUNT];
+
+
+typedef struct {
+  uitransitiondata_t data;
+  uitransitiontype_t type;
+  uitransitioncallback_t finished;
+  void *user;
+} uitransition_t;
+
+extern uitransition_t UI_TRANSITION;
+
+/**
+ * Initializes the transition overlay, zeroing all fields and wiring the
+ * onTransitionEnd event.
+ *
+ * @return Any error that occurs.
+ */
+errorret_t uiTransitionInit(void);
+
+/**
+ * Advances the transition. Fires onTransitionEnd once when it completes.
+ * Safe to call when no transition is running.
+ *
+ * @return Any error that occurs.
+ */
+errorret_t uiTransitionUpdate(void);
+
+/**
+ * Renders the transition overlay. Skipped entirely when the current alpha
+ * is zero.
+ *
+ * @return Any error that occurs.
+ */
+errorret_t uiTransitionDraw(void);
+
+typedef struct {
+  float_t duration;
+  uitransitiontype_t type;
+  uitransitionparams_t params;
+  uitransitioncallback_t finished;
+  void *user;
+} uitransitionstartparams_t;
+
+/**
+ * Starts a transition described by an info struct.
+ *
+ * @param info Transition parameters.
+ */
+void uiTransitionStart(const uitransitionstartparams_t info);
+

archive/dusk/ui/transition/uitransitiondata.h

@@ -0,0 +1,23 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "error/error.h"
+#include "uitransitionfade.h"
+
+typedef union uitransitionparams_u {
+  uitransitionfade_t fade;
+} uitransitionparams_t;
+
+typedef struct uitransitiondata_s {
+  float_t time;
+  float_t duration;
+  float_t t;
+  uitransitionparams_t params;
+} uitransitiondata_t;
+
+typedef errorret_t (*uitransitiondrawfunc_t)(const uitransitiondata_t *data);

archive/dusk/ui/transition/uitransitionfade.c

@@ -0,0 +1,56 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "uitransition.h"
+#include "assert/assert.h"
+#include "display/screen/screen.h"
+#include "display/texture/texture.h"
+#include "display/spritebatch/spritebatch.h"
+#include "display/shader/shaderunlit.h"
+
+errorret_t uiTransitionFadeDraw(const uitransitiondata_t *data) {
+  assertNotNull(data, "data must not be NULL");
+
+  float_t e = easingApply(data->params.fade.easing, data->t);
+
+  float_t r = (float_t)(
+    data->params.fade.toColor.r - data->params.fade.fromColor.r
+  ) * e;
+  float_t g = (float_t)(
+    data->params.fade.toColor.g - data->params.fade.fromColor.g
+  ) * e;
+  float_t b = (float_t)(
+    data->params.fade.toColor.b - data->params.fade.fromColor.b
+  ) * e;
+  float_t a = (float_t)(
+    data->params.fade.toColor.a - data->params.fade.fromColor.a
+  ) * e;
+
+  color_t color = color4b(
+    data->params.fade.fromColor.r + (uint8_t)r,
+    data->params.fade.fromColor.g + (uint8_t)g,
+    data->params.fade.fromColor.b + (uint8_t)b,
+    data->params.fade.fromColor.a + (uint8_t)a
+  );
+
+  if(color.a == 0) errorOk();
+
+  spritebatchsprite_t sprite = {
+    .min = { 0.0f, 0.0f, 0.0f },
+    .max = { (float_t)SCREEN.width, (float_t)SCREEN.height, 0.0f },
+    .uvMin = { 0.0f, 0.0f },
+    .uvMax = { 1.0f, 1.0f }
+  };
+  shadermaterial_t material = {
+    .unlit = {
+      .color = color,
+      .texture = NULL
+    }
+  };
+  errorChain(spriteBatchBuffer(&sprite, 1, &SHADER_UNLIT, material));
+  errorOk();
+}

archive/dusk/ui/transition/uitransitionfade.h

@@ -0,0 +1,29 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "error/error.h"
+#include "display/color.h"
+#include "animation/easing.h"
+
+typedef struct uitransitiondata_s uitransitiondata_t;
+
+typedef struct {
+  color_t fromColor;
+  color_t toColor;
+  easingtype_t easing;
+} uitransitionfade_t;
+
+/**
+ * Renders a full-screen color overlay interpolated between fade->fromColor
+ * and fade->toColor using fade->easing. t is the raw normalized progress
+ * in [0, 1] before easing is applied. No-op when the resulting alpha is zero.
+ *
+ * @param fade The fade parameters.
+ * @return Any error that occurs.
+ */
+errorret_t uiTransitionFadeDraw(const uitransitiondata_t *fade);

archive/dusk/ui/ui.c

@@ -0,0 +1,62 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "ui.h"
+#include "util/memory.h"
+#include "assert/assert.h"
+#include "display/spritebatch/spritebatch.h"
+#include "display/screen/screen.h"
+#include "ui/uielement.h"
+#include "ui/focus/uifocus.h"
+
+ui_t UI;
+
+errorret_t uiInit(void) {
+  memoryZero(&UI, sizeof(ui_t));
+  uiFocusInit();
+  uiElementsSort();
+
+  uielement_t *element = &UI_ELEMENTS[0];
+  while(!uiElementIsNull(element)) {
+    errorChain(uiElementInit(element));
+    element++;
+  }
+
+  errorOk();
+}
+
+errorret_t uiUpdate(void) {
+  uiFocusUpdate();
+
+  uielement_t *element = &UI_ELEMENTS[0];
+  while(!uiElementIsNull(element)) {
+    errorChain(uiElementUpdate(element));
+    element++;
+  }
+
+  errorOk();
+}
+
+errorret_t uiRender(void) {
+  const uielement_t *element = &UI_ELEMENTS[0];
+  while(!uiElementIsNull(element)) {
+    errorChain(uiElementDraw(element));
+    element++;
+  }
+
+  errorChain(spriteBatchFlush());
+  errorOk();
+}
+
+errorret_t uiDispose(void) {
+  uielement_t *element = &UI_ELEMENTS[0];
+  while(!uiElementIsNull(element)) {
+    errorChain(uiElementDispose(element));
+    element++;
+  }
+  errorOk();
+}

archive/dusk/ui/ui.h

@@ -0,0 +1,41 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "error/error.h"
+
+typedef struct {
+  void *nothing;
+} ui_t;
+
+extern ui_t UI;
+
+/**
+ * Initializes the UI system.
+ */
+errorret_t uiInit(void);
+
+/**
+ * Updates the UI system.
+ *
+ * @return Any error that occurs.
+ */
+errorret_t uiUpdate(void);
+
+/**
+ * Renders the UI system.
+ * 
+ * @return Any error that occurs.
+ */
+errorret_t uiRender(void);
+
+/**
+ * Disposes of the UI system.
+ *
+ * @return Any error that occurs.
+ */
+errorret_t uiDispose(void);

archive/dusk/ui/uielement.c

@@ -0,0 +1,86 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "uielement.h"
+#include "assert/assert.h"
+#include "util/sort.h"
+#include "ui/frame/uiframe.h"
+#include "ui/debug/uifps.h"
+#include "engine/engine.h"
+#include "ui/overlay/uifullbox.h"
+#include "ui/overlay/uiloading.h"
+#include "ui/overlay/uicrop.h"
+#include "ui/transition/uitransition.h"
+#include "ui/debug/uiconsole.h"
+#include "ui/frame/uiconfirm.h"
+
+// Priming pass: X does nothing here, so this only exists to process any
+// #include directives nested in uielementlist.h/ui/uielementgame.h at
+// file scope (each such header's own #pragma once makes it a no-op on
+// the real pass below, which happens inside UI_ELEMENTS[]'s braces,
+// where a raw #include of a declaration would be invalid).
+#define X(initFn, updateFn, drawFn, disposeFn, order) // do nothing
+#include "uielementlist.h"
+#undef X
+
+uielement_t UI_ELEMENTS[] = {
+  #define X(initFn, updateFn, drawFn, disposeFn, elementOrder) \
+    { \
+      .init = initFn, .update = updateFn, .draw = drawFn, \
+      .dispose = disposeFn, .order = elementOrder \
+    },
+  #include "uielementlist.h"
+  #undef X
+
+  { 0 } // Null terminator
+};
+
+bool_t uiElementIsNull(const uielement_t *element) {
+  return element->init == NULL &&
+    element->update == NULL &&
+    element->draw == NULL &&
+    element->dispose == NULL;
+}
+
+int_t uiElementCompareOrder(const void *a, const void *b) {
+  const uielement_t *elementA = (const uielement_t *)a;
+  const uielement_t *elementB = (const uielement_t *)b;
+  if(elementA->order < elementB->order) return -1;
+  if(elementA->order > elementB->order) return 1;
+  return 0;
+}
+
+void uiElementsSort(void) {
+  // The trailing null terminator is always the last static entry -- sort
+  // everything before it, and leave it in place.
+  const size_t count = (sizeof(UI_ELEMENTS) / sizeof(UI_ELEMENTS[0])) - 1;
+  sortBubble(UI_ELEMENTS, count, sizeof(uielement_t), uiElementCompareOrder);
+}
+
+errorret_t uiElementInit(uielement_t *element) {
+  assertNotNull(element, "element must not be NULL");
+  if(element->init != NULL) errorChain(element->init());
+  errorOk();
+}
+
+errorret_t uiElementUpdate(uielement_t *element) {
+  assertNotNull(element, "element must not be NULL");
+  if(element->update != NULL) errorChain(element->update());
+  errorOk();
+}
+
+errorret_t uiElementDraw(const uielement_t *element) {
+  assertNotNull(element, "element must not be NULL");
+  if(element->draw != NULL) errorChain(element->draw());
+  errorOk();
+}
+
+errorret_t uiElementDispose(uielement_t *element) {
+  assertNotNull(element, "element must not be NULL");
+  if(element->dispose != NULL) errorChain(element->dispose());
+  errorOk();
+}

archive/dusk/ui/uielement.h

@@ -0,0 +1,84 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "error/error.h"
+
+// Built-in order tiers. Lower values update/render first; ties preserve
+// their relative UI_ELEMENTS declaration order (uiElementsSort uses a
+// stable sort). Game-specific elements can use any int32_t value -- these
+// are just the ones the engine itself relies on.
+#define UI_ELEMENT_ORDER_DEFAULT 0
+#define UI_ELEMENT_ORDER_DEBUG   1000
+
+typedef struct {
+  errorret_t (*init)();
+  errorret_t (*update)();
+  errorret_t (*draw)();
+  errorret_t (*dispose)();
+  int32_t order;
+} uielement_t;
+
+extern uielement_t UI_ELEMENTS[];
+
+/**
+ * Returns true when all four callbacks on the element are NULL,
+ * which marks the end of the UI_ELEMENTS array.
+ *
+ * @param element The element to test.
+ * @returns True if the element is the null terminator.
+ */
+bool_t uiElementIsNull(const uielement_t *element);
+
+/**
+ * Compares two elements by their .order field, ascending. Matches
+ * sortcompare_t, for use with the project's sort utilities.
+ *
+ * @param a First uielement_t to compare.
+ * @param b Second uielement_t to compare.
+ * @return Negative if a < b, zero if a == b, positive if a > b.
+ */
+int_t uiElementCompareOrder(const void *a, const void *b);
+
+/**
+ * Stably sorts UI_ELEMENTS in place by .order, ascending. The trailing
+ * null terminator is never moved. Called once by uiInit -- element order
+ * is static after that, so there's no need to re-sort every frame.
+ */
+void uiElementsSort(void);
+
+/**
+ * Initializes a UI element, invoking its init callback if set.
+ *
+ * @param element The element to initialize.
+ * @return Any error that occurs.
+ */
+errorret_t uiElementInit(uielement_t *element);
+
+/**
+ * Updates a UI element, calling its update callback if set.
+ *
+ * @param element The element to update.
+ * @return Any error that occurs.
+ */
+errorret_t uiElementUpdate(uielement_t *element);
+
+/**
+ * Draws a UI element, calling its draw callback if set.
+ *
+ * @param element The element to render.
+ * @return Any error that occurs.
+ */
+errorret_t uiElementDraw(const uielement_t *element);
+
+/**
+ * Disposes of a UI element, invoking its dispose callback if set.
+ *
+ * @param element The element to dispose.
+ * @return Any error that occurs.
+ */
+errorret_t uiElementDispose(uielement_t *element);

archive/dusk/ui/uielementlist.h

@@ -0,0 +1,47 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+// X(init, update, draw, dispose, order) -- pass NULL for any callback the
+// element doesn't need. order controls update/draw sequence (lower first,
+// see UI_ELEMENT_ORDER_* in uielement.h); ties preserve declaration order.
+// See uielement.c for how this expands.
+
+X(uiFrameInit, NULL, NULL, uiFrameDispose, UI_ELEMENT_ORDER_DEFAULT)
+
+// Fullbox under: above scene, below system UI.
+X(
+  uiFullboxUnderInit, uiFullboxUnderUpdate, uiFullboxUnderDraw, NULL,
+  UI_ELEMENT_ORDER_DEFAULT
+)
+
+// Text stuffs
+X(uiConfirmInit, NULL, uiConfirmDraw, uiConfirmDispose, UI_ELEMENT_ORDER_DEFAULT)
+
+X(
+  uiTransitionInit, uiTransitionUpdate, uiTransitionDraw, NULL,
+  UI_ELEMENT_ORDER_DEFAULT
+)
+
+// Fullbox over: above absolutely everything (except debug).
+X(
+  uiFullboxOverInit, uiFullboxOverUpdate, uiFullboxOverDraw, NULL,
+  UI_ELEMENT_ORDER_DEFAULT
+)
+
+X(
+  uiLoadingInit, uiLoadingUpdate, uiLoadingDraw, NULL,
+  UI_ELEMENT_ORDER_DEFAULT
+)
+
+X(uiCropInit, NULL, uiCropDraw, NULL, UI_ELEMENT_ORDER_DEFAULT)
+
+// Debug items -- always last.
+X(NULL, NULL, uiConsoleDraw, uiConsoleDispose, UI_ELEMENT_ORDER_DEBUG)
+X(uiFPSInit, NULL, uiFPSDraw, NULL, UI_ELEMENT_ORDER_DEBUG)
+
+// Game-specific UI elements (duskrpg)
+#include "ui/uielementgame.h"

archive/dusk/ui/widget/CMakeLists.txt

@@ -0,0 +1,17 @@
+# Copyright (c) 2026 Dominic Masters
+#
+# This software is released under the MIT License.
+# https://opensource.org/licenses/MIT
+
+target_sources(${DUSK_LIBRARY_TARGET_NAME}
+  PUBLIC
+    uibutton.c
+    uicheckbox.c
+    uitab.c
+    uislider.c
+    uidropdown.c
+    uiscrolling.c
+    uimenu.c
+    uilabel.c
+    uiwidgetlabel.c
+)

archive/dusk/ui/widget/uibutton.c

@@ -0,0 +1,42 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "uibutton.h"
+#include "assert/assert.h"
+#include "display/text/text.h"
+#include "display/color.h"
+
+void uiButtonInit(uibutton_t *button, const char_t *label) {
+  assertNotNull(button, "Button cannot be NULL");
+  assertNotNull(label, "Label cannot be NULL");
+  uiWidgetLabelInit(&button->label, &FONT_DEFAULT);
+  uiWidgetLabelSetText(&button->label, label);
+  button->highlighted = false;
+}
+
+bool_t uiButtonIsHighlighted(const uibutton_t *button) {
+  assertNotNull(button, "Button cannot be NULL");
+  return button->highlighted;
+}
+
+void uiButtonSetHighlighted(uibutton_t *button, const bool_t highlighted) {
+  assertNotNull(button, "Button cannot be NULL");
+  button->highlighted = highlighted;
+  uiWidgetLabelSetColor(
+    &button->label, highlighted ? COLOR_RED : COLOR_WHITE
+  );
+}
+
+errorret_t uiButtonDraw(
+  const uibutton_t *button,
+  const float_t x,
+  const float_t y
+) {
+  assertNotNull(button, "Button cannot be NULL");
+  errorChain(uiWidgetLabelDraw(&button->label, x, y));
+  errorOk();
+}

archive/dusk/ui/widget/uibutton.h

@@ -0,0 +1,53 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "error/error.h"
+#include "ui/widget/uiwidgetlabel.h"
+
+typedef struct {
+  uiwidgetlabel_t label;
+  bool_t highlighted;
+} uibutton_t;
+
+/**
+ * Initializes a button.
+ *
+ * @param button The button to initialize.
+ * @param label Display label.
+ */
+void uiButtonInit(uibutton_t *button, const char_t *label);
+
+/**
+ * Returns whether the button is highlighted.
+ *
+ * @param button The button to query.
+ * @returns True if highlighted.
+ */
+bool_t uiButtonIsHighlighted(const uibutton_t *button);
+
+/**
+ * Sets the highlighted state of the button.
+ *
+ * @param button The button to update.
+ * @param highlighted The new highlighted state.
+ */
+void uiButtonSetHighlighted(uibutton_t *button, const bool_t highlighted);
+
+/**
+ * Draws the button at the given screen position.
+ *
+ * @param button The button to draw.
+ * @param x Screen x position.
+ * @param y Screen y position.
+ * @return Any error that occurs.
+ */
+errorret_t uiButtonDraw(
+  const uibutton_t *button,
+  const float_t x,
+  const float_t y
+);

archive/dusk/ui/widget/uicheckbox.c

@@ -0,0 +1,64 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "uicheckbox.h"
+#include "util/memory.h"
+#include "util/string.h"
+#include "display/text/text.h"
+#include "display/color.h"
+
+void uiCheckboxInit(
+  uicheckbox_t *checkbox,
+  const char_t *label
+) {
+  memoryZero(checkbox, sizeof(uicheckbox_t));
+  checkbox->rawLabel = label;
+  uiWidgetLabelInit(&checkbox->label, &FONT_DEFAULT);
+  uiCheckboxRebuildLabel(checkbox);
+}
+
+bool_t uiCheckboxIsChecked(const uicheckbox_t *checkbox) {
+  return checkbox->checked;
+}
+
+void uiCheckboxSetChecked(uicheckbox_t *checkbox, const bool_t checked) {
+  checkbox->checked = checked;
+  uiCheckboxRebuildLabel(checkbox);
+}
+
+void uiCheckboxToggle(uicheckbox_t *checkbox) {
+  uiCheckboxSetChecked(checkbox, !uiCheckboxIsChecked(checkbox));
+}
+
+bool_t uiCheckboxIsHighlighted(const uicheckbox_t *checkbox) {
+  return checkbox->highlighted;
+}
+
+void uiCheckboxSetHighlighted(uicheckbox_t *checkbox, const bool_t highlighted) {
+  checkbox->highlighted = highlighted;
+  uiWidgetLabelSetColor(
+    &checkbox->label, highlighted ? COLOR_RED : COLOR_WHITE
+  );
+}
+
+errorret_t uiCheckboxDraw(
+  const uicheckbox_t *checkbox,
+  const float_t x,
+  const float_t y
+) {
+  errorChain(uiWidgetLabelDraw(&checkbox->label, x, y));
+  errorOk();
+}
+
+void uiCheckboxRebuildLabel(uicheckbox_t *checkbox) {
+  char_t combined[UI_WIDGET_LABEL_TEXT_MAX];
+  stringFormat(
+    combined, UI_WIDGET_LABEL_TEXT_MAX - 1, "%s %s",
+    checkbox->checked ? "Y" : "N", checkbox->rawLabel
+  );
+  uiWidgetLabelSetText(&checkbox->label, combined);
+}

archive/dusk/ui/widget/uicheckbox.h

@@ -0,0 +1,90 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "error/error.h"
+#include "ui/widget/uiwidgetlabel.h"
+
+typedef struct uicheckbox_s {
+  const char_t *rawLabel;
+  uiwidgetlabel_t label;
+  bool_t checked;
+  bool_t highlighted;
+} uicheckbox_t;
+
+/**
+ * Initializes a checkbox.
+ *
+ * @param checkbox The checkbox to initialize.
+ * @param label Display label.
+ */
+void uiCheckboxInit(
+  uicheckbox_t *checkbox,
+  const char_t *label
+);
+
+/**
+ * Returns whether the checkbox is checked.
+ *
+ * @param checkbox The checkbox to query.
+ * @returns True if checked.
+ */
+bool_t uiCheckboxIsChecked(const uicheckbox_t *checkbox);
+
+/**
+ * Sets the checked state of the checkbox.
+ *
+ * @param checkbox The checkbox to update.
+ * @param checked The new checked state.
+ */
+void uiCheckboxSetChecked(uicheckbox_t *checkbox, const bool_t checked);
+
+/**
+ * Toggles the checked state of the checkbox.
+ *
+ * @param checkbox The checkbox to toggle.
+ */
+void uiCheckboxToggle(uicheckbox_t *checkbox);
+
+/**
+ * Returns whether the checkbox is highlighted.
+ *
+ * @param checkbox The checkbox to query.
+ * @returns True if highlighted.
+ */
+bool_t uiCheckboxIsHighlighted(const uicheckbox_t *checkbox);
+
+/**
+ * Sets the highlighted state of the checkbox.
+ *
+ * @param checkbox The checkbox to update.
+ * @param highlighted The new highlighted state.
+ */
+void uiCheckboxSetHighlighted(uicheckbox_t *checkbox, const bool_t highlighted);
+
+/**
+ * Draws the checkbox at the given screen position.
+ *
+ * @param checkbox The checkbox to draw.
+ * @param x Screen x position.
+ * @param y Screen y position.
+ * @return Any error that occurs.
+ */
+errorret_t uiCheckboxDraw(
+  const uicheckbox_t *checkbox,
+  const float_t x,
+  const float_t y
+);
+
+/**
+ * Rebuilds the checkbox's cached label ("Y "/"N " mark plus rawLabel)
+ * from its current checked state. Called internally whenever checked
+ * changes.
+ *
+ * @param checkbox The checkbox to update.
+ */
+void uiCheckboxRebuildLabel(uicheckbox_t *checkbox);

archive/dusk/ui/widget/uidropdown.c

@@ -0,0 +1,110 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "uidropdown.h"
+#include "assert/assert.h"
+#include "util/memory.h"
+#include "util/string.h"
+#include "display/text/text.h"
+#include "display/color.h"
+
+void uiDropdownInit(
+  uidropdown_t *dropdown,
+  const char_t *label,
+  const char_t *const *options,
+  const uint8_t optionCount,
+  const uint8_t selectedIndex
+) {
+  assertNotNull(dropdown, "Dropdown cannot be NULL");
+  assertNotNull(label, "Label cannot be NULL");
+  assertNotNull(options, "Options cannot be NULL");
+  assertTrue(optionCount > 0, "Dropdown must have at least one option");
+
+  memoryZero(dropdown, sizeof(uidropdown_t));
+  uiWidgetLabelInit(&dropdown->label, &FONT_DEFAULT);
+  uiWidgetLabelSetText(&dropdown->label, label);
+  uiWidgetLabelInit(&dropdown->value, &FONT_DEFAULT);
+  dropdown->options = options;
+  dropdown->optionCount = optionCount;
+  dropdown->selectedIndex = selectedIndex < optionCount ? selectedIndex : 0;
+  uiDropdownRebuildValue(dropdown);
+}
+
+uint8_t uiDropdownGetSelectedIndex(const uidropdown_t *dropdown) {
+  assertNotNull(dropdown, "Dropdown cannot be NULL");
+  return dropdown->selectedIndex;
+}
+
+const char_t *uiDropdownGetSelectedOption(const uidropdown_t *dropdown) {
+  assertNotNull(dropdown, "Dropdown cannot be NULL");
+  return dropdown->options[dropdown->selectedIndex];
+}
+
+void uiDropdownSetSelectedIndex(uidropdown_t *dropdown, const uint8_t index) {
+  assertNotNull(dropdown, "Dropdown cannot be NULL");
+  assertTrue(index < dropdown->optionCount, "Dropdown index out of range");
+  dropdown->selectedIndex = index;
+  uiDropdownRebuildValue(dropdown);
+}
+
+void uiDropdownStepNext(uidropdown_t *dropdown) {
+  assertNotNull(dropdown, "Dropdown cannot be NULL");
+  dropdown->selectedIndex =
+    (dropdown->selectedIndex + 1) % dropdown->optionCount;
+  uiDropdownRebuildValue(dropdown);
+}
+
+void uiDropdownStepPrev(uidropdown_t *dropdown) {
+  assertNotNull(dropdown, "Dropdown cannot be NULL");
+  dropdown->selectedIndex = dropdown->selectedIndex == 0 ?
+    dropdown->optionCount - 1 : dropdown->selectedIndex - 1;
+  uiDropdownRebuildValue(dropdown);
+}
+
+bool_t uiDropdownIsHighlighted(const uidropdown_t *dropdown) {
+  assertNotNull(dropdown, "Dropdown cannot be NULL");
+  return dropdown->highlighted;
+}
+
+void uiDropdownSetHighlighted(
+  uidropdown_t *dropdown,
+  const bool_t highlighted
+) {
+  assertNotNull(dropdown, "Dropdown cannot be NULL");
+  dropdown->highlighted = highlighted;
+  color_t color = highlighted ? COLOR_RED : COLOR_WHITE;
+  uiWidgetLabelSetColor(&dropdown->label, color);
+  uiWidgetLabelSetColor(&dropdown->value, color);
+}
+
+errorret_t uiDropdownDraw(
+  const uidropdown_t *dropdown,
+  const float_t x,
+  const float_t y
+) {
+  assertNotNull(dropdown, "Dropdown cannot be NULL");
+
+  errorChain(uiWidgetLabelDraw(&dropdown->label, x, y));
+
+  int32_t labelW, labelH;
+  uiWidgetLabelGetSize(&dropdown->label, &labelW, &labelH);
+
+  errorChain(uiWidgetLabelDraw(
+    &dropdown->value, x + (float_t)labelW + UI_DROPDOWN_GAP, y
+  ));
+
+  errorOk();
+}
+
+void uiDropdownRebuildValue(uidropdown_t *dropdown) {
+  char_t valueText[UI_WIDGET_LABEL_TEXT_MAX];
+  stringFormat(
+    valueText, UI_WIDGET_LABEL_TEXT_MAX - 1, "< %s >",
+    uiDropdownGetSelectedOption(dropdown)
+  );
+  uiWidgetLabelSetText(&dropdown->value, valueText);
+}

archive/dusk/ui/widget/uidropdown.h

@@ -0,0 +1,123 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "error/error.h"
+#include "ui/widget/uiwidgetlabel.h"
+
+#define UI_DROPDOWN_GAP 4.0f
+
+typedef struct {
+  uiwidgetlabel_t label;
+  uiwidgetlabel_t value;
+  const char_t *const *options;
+  uint8_t optionCount;
+  uint8_t selectedIndex;
+  bool_t highlighted;
+} uidropdown_t;
+
+/**
+ * Initializes a dropdown.
+ *
+ * @param dropdown The dropdown to initialize.
+ * @param label Display label.
+ * @param options Array of option display strings; caller-owned, must
+ * outlive the dropdown.
+ * @param optionCount Number of entries in options. Must be > 0.
+ * @param selectedIndex Initial selected option index, clamped to
+ * [0, optionCount - 1].
+ */
+void uiDropdownInit(
+  uidropdown_t *dropdown,
+  const char_t *label,
+  const char_t *const *options,
+  const uint8_t optionCount,
+  const uint8_t selectedIndex
+);
+
+/**
+ * Returns the index of the currently selected option.
+ *
+ * @param dropdown The dropdown to query.
+ * @returns The selected option index.
+ */
+uint8_t uiDropdownGetSelectedIndex(const uidropdown_t *dropdown);
+
+/**
+ * Returns the currently selected option's display string.
+ *
+ * @param dropdown The dropdown to query.
+ * @returns The selected option string.
+ */
+const char_t *uiDropdownGetSelectedOption(const uidropdown_t *dropdown);
+
+/**
+ * Sets the selected option by index.
+ *
+ * @param dropdown The dropdown to update.
+ * @param index The new selected option index. Must be < optionCount.
+ */
+void uiDropdownSetSelectedIndex(uidropdown_t *dropdown, const uint8_t index);
+
+/**
+ * Selects the next option, wrapping around to the first option past
+ * the last.
+ *
+ * @param dropdown The dropdown to update.
+ */
+void uiDropdownStepNext(uidropdown_t *dropdown);
+
+/**
+ * Selects the previous option, wrapping around to the last option
+ * before the first.
+ *
+ * @param dropdown The dropdown to update.
+ */
+void uiDropdownStepPrev(uidropdown_t *dropdown);
+
+/**
+ * Returns whether the dropdown is highlighted.
+ *
+ * @param dropdown The dropdown to query.
+ * @returns True if highlighted.
+ */
+bool_t uiDropdownIsHighlighted(const uidropdown_t *dropdown);
+
+/**
+ * Sets the highlighted state of the dropdown.
+ *
+ * @param dropdown The dropdown to update.
+ * @param highlighted The new highlighted state.
+ */
+void uiDropdownSetHighlighted(
+  uidropdown_t *dropdown,
+  const bool_t highlighted
+);
+
+/**
+ * Draws the dropdown at the given screen position: label, then the
+ * currently selected option surrounded by cycle arrows.
+ *
+ * @param dropdown The dropdown to draw.
+ * @param x Screen x position.
+ * @param y Screen y position.
+ * @return Any error that occurs.
+ */
+errorret_t uiDropdownDraw(
+  const uidropdown_t *dropdown,
+  const float_t x,
+  const float_t y
+);
+
+/**
+ * Rebuilds the dropdown's cached value label ("< option >") from its
+ * current selectedIndex. Called internally whenever selectedIndex
+ * changes.
+ *
+ * @param dropdown The dropdown to update.
+ */
+void uiDropdownRebuildValue(uidropdown_t *dropdown);

archive/dusk/ui/widget/uilabel.c

@@ -0,0 +1,70 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "uilabel.h"
+#include "assert/assert.h"
+#include "util/memory.h"
+#include "util/string.h"
+#include "display/text/text.h"
+
+void uiLabelInit(uilabel_t *label, font_t *font) {
+  assertNotNull(label, "Label cannot be NULL");
+  assertNotNull(font, "Font cannot be NULL");
+
+  memoryZero(label, sizeof(uilabel_t));
+  label->font = font;
+  label->color = COLOR_WHITE;
+}
+
+void uiLabelSetText(uilabel_t *label, const char_t *text) {
+  assertNotNull(label, "Label cannot be NULL");
+  assertNotNull(text, "Text cannot be NULL");
+  assertStrLenMax(text, UI_LABEL_TEXT_MAX, "Label text too long");
+
+  stringCopy(label->text, text, UI_LABEL_TEXT_MAX);
+  label->spriteCount = textBuildSpriteCache(
+    label->text, label->font, label->sprites, UI_LABEL_SPRITE_COUNT_MAX,
+    &label->width, &label->height
+  );
+}
+
+void uiLabelSetColor(uilabel_t *label, const color_t color) {
+  assertNotNull(label, "Label cannot be NULL");
+  label->color = color;
+}
+
+void uiLabelGetSize(
+  const uilabel_t *label,
+  int32_t *outWidth,
+  int32_t *outHeight
+) {
+  assertNotNull(label, "Label cannot be NULL");
+  assertNotNull(outWidth, "Output width cannot be NULL");
+  assertNotNull(outHeight, "Output height cannot be NULL");
+  *outWidth = label->width;
+  *outHeight = label->height;
+}
+
+errorret_t uiLabelDraw(
+  const uilabel_t *label,
+  const float_t x,
+  const float_t y
+) {
+  assertNotNull(label, "Label cannot be NULL");
+  if(label->spriteCount == 0) errorOk();
+
+  // Cached sprites are relative to (0,0); textDrawSpriteCache translates
+  // into the requested screen position here instead of in
+  // uiLabelSetText, so a label can be repositioned every frame without
+  // rebuilding the (much more expensive) glyph/UV cache.
+  spritebatchsprite_t scratch[UI_LABEL_SPRITE_COUNT_MAX];
+  errorChain(textDrawSpriteCache(
+    label->sprites, label->spriteCount, scratch, x, y, label->color,
+    label->font->texture
+  ));
+  errorOk();
+}

archive/dusk/ui/widget/uilabel.h

@@ -0,0 +1,85 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "error/error.h"
+#include "display/text/font.h"
+#include "display/spritebatch/spritebatchsprite.h"
+#include "display/color.h"
+
+#define UI_LABEL_TEXT_MAX 256
+#define UI_LABEL_SPRITE_COUNT_MAX UI_LABEL_TEXT_MAX
+
+typedef struct {
+  char_t text[UI_LABEL_TEXT_MAX];
+  color_t color;
+  font_t *font;
+
+  spritebatchsprite_t sprites[UI_LABEL_SPRITE_COUNT_MAX];
+  uint32_t spriteCount;
+  int32_t width;
+  int32_t height;
+} uilabel_t;
+
+/**
+ * Initializes a label, defaulting to white text and no text set.
+ *
+ * @param label The label to initialize.
+ * @param font Font to use for rendering. Must outlive the label.
+ */
+void uiLabelInit(uilabel_t *label, font_t *font);
+
+/**
+ * Sets the label's text, rebuilding its cached sprites (glyph lookup, UV,
+ * and layout) immediately. This is the only way the sprite cache gets
+ * rebuilt -- uiLabelDraw never recomputes it, so call this whenever the
+ * text changes rather than once up front and expecting it to stay in sync.
+ *
+ * @param label The label to update.
+ * @param text Null-terminated string to display. Must be shorter than
+ * UI_LABEL_TEXT_MAX.
+ */
+void uiLabelSetText(uilabel_t *label, const char_t *text);
+
+/**
+ * Sets the label's tint color. Cheap -- doesn't touch the sprite cache,
+ * since color is applied via the draw material, not baked into sprites.
+ *
+ * @param label The label to update.
+ * @param color The new tint color.
+ */
+void uiLabelSetColor(uilabel_t *label, const color_t color);
+
+/**
+ * Gets the measured size (in pixels) of the label's current text, cached
+ * from the last uiLabelSetText call.
+ *
+ * @param label The label to query.
+ * @param outWidth Pointer to store the width.
+ * @param outHeight Pointer to store the height.
+ */
+void uiLabelGetSize(
+  const uilabel_t *label,
+  int32_t *outWidth,
+  int32_t *outHeight
+);
+
+/**
+ * Draws the label's cached sprites at the given screen position in a
+ * single batched buffer call. Does not recompute glyph layout -- call
+ * uiLabelSetText first whenever the text changes.
+ *
+ * @param label The label to draw.
+ * @param x Screen x position.
+ * @param y Screen y position.
+ * @return Any error that occurs.
+ */
+errorret_t uiLabelDraw(
+  const uilabel_t *label,
+  const float_t x,
+  const float_t y
+);

archive/dusk/ui/widget/uimenu.c

@@ -0,0 +1,293 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "uimenu.h"
+#include "assert/assert.h"
+#include "util/memory.h"
+#include "display/text/text.h"
+#include "display/color.h"
+#include "ui/widget/uiwidgetlabel.h"
+#include "ui/widget/uibutton.h"
+#include "ui/widget/uitab.h"
+#include "ui/widget/uislider.h"
+#include "ui/widget/uidropdown.h"
+
+void uiMenuInit(
+  uimenu_t *menu,
+  uimenuselectedcallback_t selected,
+  uimenuclosedcallback_t closed,
+  uimenuchangedcallback_t changed
+) {
+  assertNotNull(menu, "Menu cannot be NULL");
+  memoryZero(menu, sizeof(uimenu_t));
+  menu->selected = selected;
+  menu->closed = closed;
+  menu->changed = changed;
+}
+
+void uiMenuSetItems(
+  uimenu_t *menu,
+  const uimenuitem_t *items,
+  const uint8_t itemCount,
+  const uint8_t columns
+) {
+  assertNotNull(menu, "Menu cannot be NULL");
+  assertNotNull(items, "Items cannot be NULL");
+  assertTrue(itemCount > 0, "Item count must be > 0");
+  assertTrue(columns > 0, "Columns must be > 0");
+  menu->items = (uimenuitem_t *)items;
+  menu->itemCount = itemCount;
+  menu->columns = columns;
+}
+
+void uiMenuSetPosition(uimenu_t *menu, const uint8_t x, const uint8_t y) {
+  assertNotNull(menu, "Menu cannot be NULL");
+  if(menu->focusItem == NULL) return;
+  uiFocusSetPosition(menu->focusItem, x, y);
+}
+
+void uiMenuOpen(uimenu_t *menu) {
+  assertNotNull(menu, "Menu cannot be NULL");
+  assertNotNull(menu->items, "Menu items cannot be NULL");
+  assertTrue(menu->itemCount > 0, "Menu item count must be > 0");
+  assertTrue(menu->columns > 0, "Menu columns must be > 0");
+  if(menu->focusItem != NULL) return;
+
+  uint8_t focusable = uiMenuFocusableCount(menu);
+  uint8_t rows = focusable > 0 ?
+    (focusable + menu->columns - 1) / menu->columns : 1;
+  menu->focusItem = uiFocusPush(
+    menu->columns, rows,
+    uiMenuFocusSelected,
+    uiMenuFocusChanged,
+    uiMenuFocusClosed,
+    uiMenuFocusDirection,
+    menu
+  );
+}
+
+void uiMenuClose(uimenu_t *menu) {
+  assertNotNull(menu, "Menu cannot be NULL");
+  if(menu->focusItem == NULL) return;
+  uiFocusPopItem(menu->focusItem);
+  menu->focusItem = NULL;
+}
+
+bool_t uiMenuIsActive(const uimenu_t *menu) {
+  assertNotNull(menu, "Menu cannot be NULL");
+  return menu->focusItem != NULL;
+}
+
+errorret_t uiMenuDraw(
+  const uimenu_t *menu,
+  const float_t x,
+  const float_t y,
+  const float_t width,
+  const float_t height
+) {
+  assertNotNull(menu, "Menu cannot be NULL");
+  if(menu->itemCount == 0) errorOk();
+
+  float_t colStep = width / (float_t)menu->columns;
+  float_t rowHeight = (float_t)FONT_DEFAULT.tileset->tileHeight;
+
+  uint8_t col = 0;
+  uint8_t row = 0;
+
+  for(uint8_t i = 0; i < menu->itemCount; i++) {
+    const uimenuitem_t *item = &menu->items[i];
+
+    if(item->type == UI_MENU_WIDGET_TYPE_LABEL) {
+      if(col > 0) { row++; col = 0; }
+      errorChain(uiWidgetLabelDraw(
+        &item->label, x, y + (float_t)row * rowHeight
+      ));
+      row++;
+      continue;
+    }
+
+    if(item->type == UI_MENU_WIDGET_TYPE_SPACER) {
+      if(col > 0) { row++; col = 0; }
+      row++;
+      continue;
+    }
+
+    float_t ix = x + (float_t)col * colStep;
+    float_t iy = y + (float_t)row * rowHeight;
+
+    switch(item->type) {
+      case UI_MENU_WIDGET_TYPE_CHECKBOX:
+        errorChain(uiCheckboxDraw(&item->checkbox, ix, iy));
+        break;
+
+      case UI_MENU_WIDGET_TYPE_BUTTON:
+        errorChain(uiButtonDraw(&item->button, ix, iy));
+        break;
+
+      case UI_MENU_WIDGET_TYPE_TAB:
+        errorChain(uiTabDraw(&item->tab, ix, iy));
+        break;
+
+      case UI_MENU_WIDGET_TYPE_SLIDER:
+        errorChain(uiSliderDraw(&item->slider, ix, iy));
+        break;
+
+      case UI_MENU_WIDGET_TYPE_DROPDOWN:
+        errorChain(uiDropdownDraw(&item->dropdown, ix, iy));
+        break;
+
+      default:
+        break;
+    }
+
+    col++;
+    if(col >= menu->columns) { col = 0; row++; }
+  }
+
+  errorOk();
+}
+
+bool_t uiMenuFocusSelected(const uifocusitem_t *focusItem) {
+  assertNotNull(focusItem, "Focus item cannot be NULL");
+  assertNotNull(focusItem->user, "Focus item user cannot be NULL");
+  uimenu_t *menu = (uimenu_t *)focusItem->user;
+  if(menu->selected == NULL) return true;
+
+  uint8_t slot = focusItem->y * menu->columns + focusItem->x;
+  uint8_t index = uiMenuFocusSlotToIndex(menu, slot);
+  if(index == 0xFF) return true;
+
+  menu->selected(menu, index, &menu->items[index]);
+  return true;
+}
+
+bool_t uiMenuFocusChanged(const uifocusitem_t *focusItem) {
+  assertNotNull(focusItem, "Focus item cannot be NULL");
+  assertNotNull(focusItem->user, "Focus item user cannot be NULL");
+  uimenu_t *menu = (uimenu_t *)focusItem->user;
+
+  uint8_t focusSlot = focusItem->y * menu->columns + focusItem->x;
+  uint8_t slot = 0;
+
+  for(uint8_t i = 0; i < menu->itemCount; i++) {
+    uimenuitem_t *item = &menu->items[i];
+    if(
+      item->type == UI_MENU_WIDGET_TYPE_LABEL ||
+      item->type == UI_MENU_WIDGET_TYPE_SPACER
+    ) continue;
+    uiMenuItemSetHighlighted(item, slot == focusSlot);
+    slot++;
+  }
+
+  if(menu->changed == NULL) return true;
+  uint8_t index = uiMenuFocusSlotToIndex(menu, focusSlot);
+  if(index == 0xFF) return true;
+
+  menu->changed(menu, index, &menu->items[index]);
+  return true;
+}
+
+bool_t uiMenuFocusClosed(const uifocusitem_t *focusItem) {
+  assertNotNull(focusItem, "Focus item cannot be NULL");
+  assertNotNull(focusItem->user, "Focus item user cannot be NULL");
+  uimenu_t *menu = (uimenu_t *)focusItem->user;
+  menu->focusItem = NULL;
+
+  for(uint8_t i = 0; i < menu->itemCount; i++) {
+    uiMenuItemSetHighlighted(&menu->items[i], false);
+  }
+
+  if(menu->closed != NULL) menu->closed(menu);
+  return true;
+}
+
+bool_t uiMenuFocusDirection(
+  const uifocusitem_t *focusItem,
+  const uifocusdirection_t direction
+) {
+  assertNotNull(focusItem, "Focus item cannot be NULL");
+  assertNotNull(focusItem->user, "Focus item user cannot be NULL");
+  if(direction != UI_FOCUS_DIRECTION_LEFT && direction != UI_FOCUS_DIRECTION_RIGHT) {
+    return false;
+  }
+
+  uimenu_t *menu = (uimenu_t *)focusItem->user;
+  uint8_t slot = focusItem->y * menu->columns + focusItem->x;
+  uint8_t index = uiMenuFocusSlotToIndex(menu, slot);
+  if(index == 0xFF) return false;
+
+  uimenuitem_t *item = &menu->items[index];
+  bool_t right = direction == UI_FOCUS_DIRECTION_RIGHT;
+
+  if(item->type == UI_MENU_WIDGET_TYPE_SLIDER) {
+    if(right) {
+      uiSliderStepUp(&item->slider);
+    } else {
+      uiSliderStepDown(&item->slider);
+    }
+    return true;
+  }
+
+  if(item->type == UI_MENU_WIDGET_TYPE_CHECKBOX) {
+    uiCheckboxToggle(&item->checkbox);
+    return true;
+  }
+
+  if(item->type == UI_MENU_WIDGET_TYPE_DROPDOWN) {
+    if(right) {
+      uiDropdownStepNext(&item->dropdown);
+    } else {
+      uiDropdownStepPrev(&item->dropdown);
+    }
+    return true;
+  }
+
+  return false;
+}
+
+uint8_t uiMenuFocusableCount(const uimenu_t *menu) {
+  assertNotNull(menu, "Menu cannot be NULL");
+  uint8_t count = 0;
+  for(uint8_t i = 0; i < menu->itemCount; i++) {
+    uimenuwidgettype_t t = menu->items[i].type;
+    if(t != UI_MENU_WIDGET_TYPE_LABEL && t != UI_MENU_WIDGET_TYPE_SPACER) count++;
+  }
+  return count;
+}
+
+uint8_t uiMenuFocusSlotToIndex(const uimenu_t *menu, const uint8_t slot) {
+  assertNotNull(menu, "Menu cannot be NULL");
+  uint8_t focusable = 0;
+  for(uint8_t i = 0; i < menu->itemCount; i++) {
+    uimenuwidgettype_t t = menu->items[i].type;
+    if(t == UI_MENU_WIDGET_TYPE_LABEL || t == UI_MENU_WIDGET_TYPE_SPACER) continue;
+    if(focusable == slot) return i;
+    focusable++;
+  }
+  return 0xFF;
+}
+
+void uiMenuLabelInit(uimenuitem_t *item, const char_t *text) {
+  assertNotNull(item, "Item cannot be NULL");
+  assertNotNull(text, "Text cannot be NULL");
+  uiWidgetLabelInit(&item->label, &FONT_DEFAULT);
+  uiWidgetLabelSetText(&item->label, text);
+}
+
+void uiMenuItemSetHighlighted(uimenuitem_t *item, const bool_t highlighted) {
+  if(item->type == UI_MENU_WIDGET_TYPE_CHECKBOX) {
+    uiCheckboxSetHighlighted(&item->checkbox, highlighted);
+  } else if(item->type == UI_MENU_WIDGET_TYPE_BUTTON) {
+    uiButtonSetHighlighted(&item->button, highlighted);
+  } else if(item->type == UI_MENU_WIDGET_TYPE_TAB) {
+    uiTabSetActive(&item->tab, highlighted);
+  } else if(item->type == UI_MENU_WIDGET_TYPE_SLIDER) {
+    uiSliderSetHighlighted(&item->slider, highlighted);
+  } else if(item->type == UI_MENU_WIDGET_TYPE_DROPDOWN) {
+    uiDropdownSetHighlighted(&item->dropdown, highlighted);
+  }
+}

archive/dusk/ui/widget/uimenu.h

@@ -0,0 +1,292 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "error/error.h"
+#include "ui/focus/uifocus.h"
+#include "ui/widget/uiwidgetlabel.h"
+#include "ui/widget/uibutton.h"
+#include "ui/widget/uicheckbox.h"
+#include "ui/widget/uitab.h"
+#include "ui/widget/uislider.h"
+#include "ui/widget/uidropdown.h"
+
+typedef struct uimenu_s uimenu_t;
+
+typedef enum {
+  UI_MENU_WIDGET_TYPE_NONE,
+  UI_MENU_WIDGET_TYPE_LABEL,
+  UI_MENU_WIDGET_TYPE_SPACER,
+  UI_MENU_WIDGET_TYPE_CHECKBOX,
+  UI_MENU_WIDGET_TYPE_BUTTON,
+  UI_MENU_WIDGET_TYPE_TAB,
+  UI_MENU_WIDGET_TYPE_SLIDER,
+  UI_MENU_WIDGET_TYPE_DROPDOWN,
+} uimenuwidgettype_t;
+
+typedef struct {
+  uimenuwidgettype_t type;
+  union {
+    uiwidgetlabel_t label;
+    uicheckbox_t checkbox;
+    uibutton_t button;
+    uitab_t tab;
+    uislider_t slider;
+    uidropdown_t dropdown;
+  };
+} uimenuitem_t;
+
+typedef void (*uimenuselectedcallback_t)(
+  const uimenu_t *menu,
+  const uint8_t index,
+  const uimenuitem_t *item
+);
+
+typedef void (*uimenuchangedcallback_t)(
+  const uimenu_t *menu,
+  const uint8_t index,
+  const uimenuitem_t *item
+);
+
+typedef void (*uimenuclosedcallback_t)(const uimenu_t *menu);
+
+typedef struct uimenu_s {
+  uimenuitem_t *items;
+  uint8_t itemCount;
+  uint8_t columns;
+  uifocusitem_t *focusItem;
+
+  uimenuselectedcallback_t selected;
+  uimenuclosedcallback_t closed;
+  uimenuchangedcallback_t changed;
+
+  void *user;
+} uimenu_t;
+
+/**
+ * Initializes a menu, clearing all items and focus state.
+ *
+ * @param menu The menu to initialize.
+ * @param items The list of items to display in the menu.
+ * @param itemCount The number of items in the list.
+ * @param columns The number of columns to display the items in.
+ * @param selected The callback to invoke when an item is selected.
+ * @param closed The callback to invoke when the menu is closed.
+ * @param changed The callback to invoke when the menu changes.
+ */
+void uiMenuInit(
+  uimenu_t *menu,
+  uimenuselectedcallback_t selected,
+  uimenuclosedcallback_t closed,
+  uimenuchangedcallback_t changed
+);
+
+/**
+ * Sets the items to display in the menu.
+ *
+ * @param menu The menu to update.
+ * @param items The list of items to display in the menu.
+ * @param itemCount The number of items in the list.
+ * @param columns The number of columns to display the items in.
+ */
+void uiMenuSetItems(
+  uimenu_t *menu,
+  const uimenuitem_t *items,
+  const uint8_t itemCount,
+  const uint8_t columns
+);
+
+/**
+ * Sets the position of the menu on the screen.
+ *
+ * @param menu The menu to position.
+ * @param x The x-coordinate to position the menu at.
+ * @param y The y-coordinate to position the menu at.
+ */
+void uiMenuSetPosition(uimenu_t *menu, const uint8_t x, const uint8_t y);
+
+/**
+ * Pushes a menu onto the UI focus stack, making it the active menu.
+ *
+ * @param menu The menu to push.
+ */
+void uiMenuOpen(uimenu_t *menu);
+
+/**
+ * Pops a menu from the UI focus stack, removing it from the active menu.
+ * 
+ * @param menu The menu to pop.
+ */
+void uiMenuClose(uimenu_t *menu);
+
+/**
+ * Returns whether the menu is currently active (on the UI focus stack).
+ *
+ * @param menu The menu to query.
+ * @returns True if the menu is active.
+ */
+bool_t uiMenuIsActive(const uimenu_t *menu);
+
+/**
+ * Draws the menu at the specified position and size.
+ *
+ * @param menu The menu to draw.
+ * @param x The x-coordinate to draw the menu at.
+ * @param y The y-coordinate to draw the menu at.
+ * @param width The width of the menu.
+ * @param height The height of the menu.
+ * @returns An error code indicating success or failure.
+ */
+errorret_t uiMenuDraw(
+  const uimenu_t *menu,
+  const float_t x,
+  const float_t y,
+  const float_t width,
+  const float_t height
+);
+
+/**
+ * Returns the number of focusable (non-label) items in the menu.
+ *
+ * @param menu The menu to query.
+ * @returns Count of non-label items.
+ */
+uint8_t uiMenuFocusableCount(const uimenu_t *menu);
+
+/**
+ * Maps a flat focus slot index to the corresponding item array index,
+ * skipping over label items which are not focusable.
+ *
+ * @param menu The menu to query.
+ * @param slot The focus slot index (y * columns + x).
+ * @returns The item array index, or 0xFF if out of range.
+ */
+uint8_t uiMenuFocusSlotToIndex(const uimenu_t *menu, const uint8_t slot);
+
+/**
+ * Sets the highlighted/active state on a menu item, dispatching to the
+ * matching widget's setter based on its type. No-op for label/spacer
+ * items and any other type with no highlight concept.
+ *
+ * @param item The item to update.
+ * @param highlighted The new highlighted/active state.
+ */
+void uiMenuItemSetHighlighted(uimenuitem_t *item, const bool_t highlighted);
+
+/**
+ * Initializes a menu item as a standalone label, caching its text.
+ * Used internally by the MENU_LABEL helper macro.
+ *
+ * @param item The item to initialize.
+ * @param text Display text.
+ */
+void uiMenuLabelInit(uimenuitem_t *item, const char_t *text);
+
+/**
+ * Internal focus callback  -  forwards selection to the menu's selected handler.
+ *
+ * @param focusItem The active focus item; user field must point to uimenu_t.
+ * @returns True.
+ */
+bool_t uiMenuFocusSelected(const uifocusitem_t *focusItem);
+
+/**
+ * Internal focus callback  -  updates widget highlights and fires changed.
+ *
+ * @param focusItem The active focus item; user field must point to uimenu_t.
+ * @returns True.
+ */
+bool_t uiMenuFocusChanged(const uifocusitem_t *focusItem);
+
+/**
+ * Internal focus callback  -  clears focusItem and fires the closed handler.
+ *
+ * @param focusItem The active focus item; user field must point to uimenu_t.
+ * @returns True.
+ */
+bool_t uiMenuFocusClosed(const uifocusitem_t *focusItem);
+
+/**
+ * Internal focus callback  -  gives the focused item's widget a chance to
+ * handle LEFT/RIGHT itself (e.g. a slider adjusting its value) before
+ * falling back to the default cell-to-cell movement.
+ *
+ * @param focusItem The active focus item; user field must point to uimenu_t.
+ * @param direction The direction that was pressed or held.
+ * @returns True if the focused widget handled the direction.
+ */
+bool_t uiMenuFocusDirection(
+  const uifocusitem_t *focusItem,
+  const uifocusdirection_t direction
+);
+
+// Helper macros
+#define MENU_BEGIN(menuPtr, itemsArray, selected, closed, changed) \
+  uimenu_t *menu = (menuPtr); \
+  uiMenuInit(menu, selected, closed, changed); \
+  menu->items = (itemsArray); \
+  uint8_t menuIndex = 0; \
+  uint8_t menuCapacity = sizeof(itemsArray) / sizeof((itemsArray)[0])
+
+#define MENU_LABEL(text) \
+  assertTrue(menuIndex < menuCapacity, "Menu item count exceeds capacity"); \
+  menu->items[menuIndex].type = UI_MENU_WIDGET_TYPE_LABEL; \
+  uiMenuLabelInit(&menu->items[menuIndex], text); \
+  ++menuIndex
+
+#define MENU_SPACER() \
+  assertTrue(menuIndex < menuCapacity, "Menu item count exceeds capacity"); \
+  menu->items[menuIndex].type = UI_MENU_WIDGET_TYPE_SPACER; \
+  ++menuIndex
+
+#define MENU_CHECKBOX(label) \
+  assertTrue(menuIndex < menuCapacity, "Menu item count exceeds capacity"); \
+  menu->items[menuIndex].type = UI_MENU_WIDGET_TYPE_CHECKBOX; \
+  uiCheckboxInit(&menu->items[menuIndex].checkbox, label); \
+  ++menuIndex
+
+#define MENU_BUTTON(label) \
+  assertTrue(menuIndex < menuCapacity, "Menu item count exceeds capacity"); \
+  menu->items[menuIndex].type = UI_MENU_WIDGET_TYPE_BUTTON; \
+  uiButtonInit(&menu->items[menuIndex].button, label); \
+  ++menuIndex
+
+#define MENU_TAB(label) \
+  assertTrue(menuIndex < menuCapacity, "Menu item count exceeds capacity"); \
+  menu->items[menuIndex].type = UI_MENU_WIDGET_TYPE_TAB; \
+  uiTabInit(&menu->items[menuIndex].tab, label); \
+  ++menuIndex
+
+#define MENU_SLIDER_FLOAT(label, value, min, max, step) \
+  assertTrue(menuIndex < menuCapacity, "Menu item count exceeds capacity"); \
+  menu->items[menuIndex].type = UI_MENU_WIDGET_TYPE_SLIDER; \
+  uiSliderInitFloat( \
+    &menu->items[menuIndex].slider, label, value, min, max, step \
+  ); \
+  ++menuIndex
+
+#define MENU_SLIDER_INT(label, value, min, max, step) \
+  assertTrue(menuIndex < menuCapacity, "Menu item count exceeds capacity"); \
+  menu->items[menuIndex].type = UI_MENU_WIDGET_TYPE_SLIDER; \
+  uiSliderInitInt( \
+    &menu->items[menuIndex].slider, label, value, min, max, step \
+  ); \
+  ++menuIndex
+
+#define MENU_DROPDOWN(label, options, optionCount, selectedIndex) \
+  assertTrue(menuIndex < menuCapacity, "Menu item count exceeds capacity"); \
+  menu->items[menuIndex].type = UI_MENU_WIDGET_TYPE_DROPDOWN; \
+  uiDropdownInit( \
+    &menu->items[menuIndex].dropdown, label, options, optionCount, \
+    selectedIndex \
+  ); \
+  ++menuIndex
+
+#define MENU_END(itemsArray, columns) \
+  uiMenuSetItems(menu, (itemsArray), menuIndex, (columns))
+
+//EOF

archive/dusk/ui/widget/uiscrolling.c

@@ -0,0 +1,15 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "uiscrolling.h"
+#include "assert/assert.h"
+
+void uiScrollingInit(uiscrolling_t *scrolling) {
+  assertNotNull(scrolling, "Scrolling container cannot be NULL");
+  // Nothing to initialize yet -- uiscrolling_t is currently a
+  // placeholder with no fields.
+}

archive/dusk/ui/widget/uiscrolling.h

@@ -0,0 +1,21 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "error/error.h"
+
+typedef struct {
+
+} uiscrolling_t;
+
+/**
+ * Initializes a scrolling container. Currently a placeholder -- no
+ * scrolling behavior is implemented yet.
+ *
+ * @param scrolling The scrolling container to initialize.
+ */
+void uiScrollingInit(uiscrolling_t *scrolling);

archive/dusk/ui/widget/uislider.c

@@ -0,0 +1,282 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "uislider.h"
+#include "assert/assert.h"
+#include "util/memory.h"
+#include "util/math.h"
+#include "util/string.h"
+#include "display/text/text.h"
+#include "display/color.h"
+#include "display/spritebatch/spritebatch.h"
+#include "display/texture/texture.h"
+#include "display/shader/shaderunlit.h"
+
+void uiSliderInitFloat(
+  uislider_t *slider,
+  const char_t *label,
+  const float_t value,
+  const float_t min,
+  const float_t max,
+  const float_t step
+) {
+  assertNotNull(slider, "Slider cannot be NULL");
+  assertNotNull(label, "Label cannot be NULL");
+  assertTrue(max > min, "Slider max must be greater than min");
+  assertTrue(step > 0.0f, "Slider step must be greater than zero");
+
+  memoryZero(slider, sizeof(uislider_t));
+  uiWidgetLabelInit(&slider->label, &FONT_DEFAULT);
+  uiWidgetLabelSetText(&slider->label, label);
+  uiWidgetLabelInit(&slider->valueLabel, &FONT_DEFAULT);
+  slider->type = UI_SLIDER_TYPE_FLOAT;
+  slider->min.f = min;
+  slider->max.f = max;
+  slider->step.f = step;
+  slider->value.f = mathClamp(value, min, max);
+  uiSliderRebuildValueLabel(slider);
+  uiSliderRebuildGeometry(slider);
+}
+
+void uiSliderInitInt(
+  uislider_t *slider,
+  const char_t *label,
+  const int32_t value,
+  const int32_t min,
+  const int32_t max,
+  const int32_t step
+) {
+  assertNotNull(slider, "Slider cannot be NULL");
+  assertNotNull(label, "Label cannot be NULL");
+  assertTrue(max > min, "Slider max must be greater than min");
+  assertTrue(step > 0, "Slider step must be greater than zero");
+
+  memoryZero(slider, sizeof(uislider_t));
+  uiWidgetLabelInit(&slider->label, &FONT_DEFAULT);
+  uiWidgetLabelSetText(&slider->label, label);
+  uiWidgetLabelInit(&slider->valueLabel, &FONT_DEFAULT);
+  slider->type = UI_SLIDER_TYPE_INT;
+  slider->min.i = min;
+  slider->max.i = max;
+  slider->step.i = step;
+  slider->value.i = mathClamp(value, min, max);
+  uiSliderRebuildValueLabel(slider);
+  uiSliderRebuildGeometry(slider);
+}
+
+float_t uiSliderGetFloat(const uislider_t *slider) {
+  assertNotNull(slider, "Slider cannot be NULL");
+  return slider->type == UI_SLIDER_TYPE_INT ?
+    (float_t)slider->value.i : slider->value.f;
+}
+
+int32_t uiSliderGetInt(const uislider_t *slider) {
+  assertNotNull(slider, "Slider cannot be NULL");
+  assertTrue(
+    slider->type == UI_SLIDER_TYPE_INT, "Slider is not an int slider"
+  );
+  return slider->value.i;
+}
+
+void uiSliderSetFloat(uislider_t *slider, const float_t value) {
+  assertNotNull(slider, "Slider cannot be NULL");
+  assertTrue(
+    slider->type == UI_SLIDER_TYPE_FLOAT, "Slider is not a float slider"
+  );
+  slider->value.f = mathClamp(value, slider->min.f, slider->max.f);
+  uiSliderRebuildValueLabel(slider);
+  uiSliderRebuildGeometry(slider);
+}
+
+void uiSliderSetInt(uislider_t *slider, const int32_t value) {
+  assertNotNull(slider, "Slider cannot be NULL");
+  assertTrue(
+    slider->type == UI_SLIDER_TYPE_INT, "Slider is not an int slider"
+  );
+  slider->value.i = mathClamp(value, slider->min.i, slider->max.i);
+  uiSliderRebuildValueLabel(slider);
+  uiSliderRebuildGeometry(slider);
+}
+
+void uiSliderStepUp(uislider_t *slider) {
+  assertNotNull(slider, "Slider cannot be NULL");
+  if(slider->type == UI_SLIDER_TYPE_INT) {
+    int32_t next = slider->value.i + slider->step.i;
+    uiSliderSetInt(slider, next > slider->max.i ? slider->min.i : next);
+  } else {
+    float_t next = slider->value.f + slider->step.f;
+    uiSliderSetFloat(slider, next > slider->max.f ? slider->min.f : next);
+  }
+}
+
+void uiSliderStepDown(uislider_t *slider) {
+  assertNotNull(slider, "Slider cannot be NULL");
+  if(slider->type == UI_SLIDER_TYPE_INT) {
+    int32_t next = slider->value.i - slider->step.i;
+    uiSliderSetInt(slider, next < slider->min.i ? slider->max.i : next);
+  } else {
+    float_t next = slider->value.f - slider->step.f;
+    uiSliderSetFloat(slider, next < slider->min.f ? slider->max.f : next);
+  }
+}
+
+float_t uiSliderGetRatio(const uislider_t *slider) {
+  assertNotNull(slider, "Slider cannot be NULL");
+  if(slider->type == UI_SLIDER_TYPE_INT) {
+    if(slider->max.i == slider->min.i) return 0.0f;
+    return (float_t)(slider->value.i - slider->min.i) /
+      (float_t)(slider->max.i - slider->min.i);
+  }
+
+  if(slider->max.f == slider->min.f) return 0.0f;
+  return (slider->value.f - slider->min.f) / (slider->max.f - slider->min.f);
+}
+
+int32_t uiSliderGetStepCount(const uislider_t *slider) {
+  assertNotNull(slider, "Slider cannot be NULL");
+  if(slider->type != UI_SLIDER_TYPE_INT || slider->step.i <= 0) return 0;
+  return (slider->max.i - slider->min.i) / slider->step.i;
+}
+
+bool_t uiSliderIsHighlighted(const uislider_t *slider) {
+  assertNotNull(slider, "Slider cannot be NULL");
+  return slider->highlighted;
+}
+
+void uiSliderSetHighlighted(uislider_t *slider, const bool_t highlighted) {
+  assertNotNull(slider, "Slider cannot be NULL");
+  slider->highlighted = highlighted;
+  color_t color = highlighted ? COLOR_RED : COLOR_WHITE;
+  uiWidgetLabelSetColor(&slider->label, color);
+  uiWidgetLabelSetColor(&slider->valueLabel, color);
+}
+
+errorret_t uiSliderDraw(
+  const uislider_t *slider,
+  const float_t x,
+  const float_t y
+) {
+  assertNotNull(slider, "Slider cannot be NULL");
+
+  errorChain(uiWidgetLabelDraw(&slider->label, x, y));
+
+  shadermaterial_t trackMaterial = {
+    .unlit = {
+      .color = COLOR_DARK_GRAY,
+      .texture = &TEXTURE_WHITE
+    }
+  };
+  spritebatchsprite_t track = spriteBatchSpriteTranslate(
+    &slider->cachedTrack, x, y
+  );
+  errorChain(spriteBatchBuffer(&track, 1, &SHADER_UNLIT, trackMaterial));
+
+  if(slider->cachedFillVisible) {
+    shadermaterial_t fillMaterial = {
+      .unlit = {
+        .color = slider->highlighted ? COLOR_RED : COLOR_WHITE,
+        .texture = &TEXTURE_WHITE
+      }
+    };
+    spritebatchsprite_t fill = spriteBatchSpriteTranslate(
+      &slider->cachedFill, x, y
+    );
+    errorChain(spriteBatchBuffer(&fill, 1, &SHADER_UNLIT, fillMaterial));
+  }
+
+  if(slider->cachedMarkerCount > 0) {
+    spritebatchsprite_t markers[UI_SLIDER_STEP_MARKERS_MAX];
+    for(int32_t i = 0; i < slider->cachedMarkerCount; i++) {
+      markers[i] = spriteBatchSpriteTranslate(&slider->cachedMarkers[i], x, y);
+    }
+
+    shadermaterial_t markerMaterial = {
+      .unlit = {
+        .color = COLOR_WHITE,
+        .texture = &TEXTURE_WHITE
+      }
+    };
+    errorChain(spriteBatchBuffer(
+      markers, slider->cachedMarkerCount, &SHADER_UNLIT, markerMaterial
+    ));
+  }
+
+  errorChain(uiWidgetLabelDraw(
+    &slider->valueLabel,
+    x + slider->cachedTrack.max[0] + UI_SLIDER_GAP,
+    y
+  ));
+
+  errorOk();
+}
+
+void uiSliderRebuildValueLabel(uislider_t *slider) {
+  char_t valueText[UI_WIDGET_LABEL_TEXT_MAX];
+  if(slider->type == UI_SLIDER_TYPE_INT) {
+    stringFormat(
+      valueText, UI_WIDGET_LABEL_TEXT_MAX - 1, "%d", slider->value.i
+    );
+  } else {
+    stringFormat(
+      valueText, UI_WIDGET_LABEL_TEXT_MAX - 1, "%.2f", slider->value.f
+    );
+  }
+  uiWidgetLabelSetText(&slider->valueLabel, valueText);
+}
+
+void uiSliderRebuildGeometry(uislider_t *slider) {
+  int32_t labelW, labelH;
+  uiWidgetLabelGetSize(&slider->label, &labelW, &labelH);
+
+  float_t trackX = (float_t)labelW + UI_SLIDER_GAP;
+  float_t trackY = ((float_t)labelH - UI_SLIDER_TRACK_HEIGHT) * 0.5f;
+
+  slider->cachedTrack = (spritebatchsprite_t){
+    .min = { trackX, trackY, 0.0f },
+    .max = {
+      trackX + UI_SLIDER_TRACK_WIDTH, trackY + UI_SLIDER_TRACK_HEIGHT, 0.0f
+    },
+    .uvMin = { 0.0f, 0.0f },
+    .uvMax = { 1.0f, 1.0f }
+  };
+
+  float_t fillWidth = UI_SLIDER_TRACK_WIDTH * uiSliderGetRatio(slider);
+  slider->cachedFillVisible = fillWidth > 0.0f;
+  if(slider->cachedFillVisible) {
+    slider->cachedFill = (spritebatchsprite_t){
+      .min = { trackX, trackY, 0.0f },
+      .max = { trackX + fillWidth, trackY + UI_SLIDER_TRACK_HEIGHT, 0.0f },
+      .uvMin = { 0.0f, 0.0f },
+      .uvMax = { 1.0f, 1.0f }
+    };
+  }
+
+  int32_t stepCount = uiSliderGetStepCount(slider);
+  if(stepCount > 0 && stepCount < UI_SLIDER_STEP_MARKERS_MAX) {
+    for(int32_t i = 0; i <= stepCount; i++) {
+      float_t markerX = trackX +
+        UI_SLIDER_TRACK_WIDTH * (float_t)i / (float_t)stepCount;
+      slider->cachedMarkers[i] = (spritebatchsprite_t){
+        .min = {
+          markerX - UI_SLIDER_STEP_MARKER_WIDTH * 0.5f,
+          trackY - UI_SLIDER_STEP_MARKER_OVERHANG,
+          0.0f
+        },
+        .max = {
+          markerX + UI_SLIDER_STEP_MARKER_WIDTH * 0.5f,
+          trackY + UI_SLIDER_TRACK_HEIGHT + UI_SLIDER_STEP_MARKER_OVERHANG,
+          0.0f
+        },
+        .uvMin = { 0.0f, 0.0f },
+        .uvMax = { 1.0f, 1.0f }
+      };
+    }
+    slider->cachedMarkerCount = stepCount + 1;
+  } else {
+    slider->cachedMarkerCount = 0;
+  }
+}

archive/dusk/ui/widget/uislider.h

@@ -0,0 +1,215 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "error/error.h"
+#include "ui/widget/uiwidgetlabel.h"
+#include "display/spritebatch/spritebatchsprite.h"
+
+#define UI_SLIDER_TRACK_WIDTH 80.0f
+#define UI_SLIDER_TRACK_HEIGHT 4.0f
+#define UI_SLIDER_STEP_MARKER_WIDTH 2.0f
+#define UI_SLIDER_STEP_MARKER_OVERHANG 1.0f
+#define UI_SLIDER_GAP 4.0f
+
+/**
+ * Number of discrete steps below which an int slider renders individual
+ * step markers on its track instead of a smooth fill.
+ */
+#define UI_SLIDER_STEP_MARKERS_MAX 10
+
+typedef enum {
+  UI_SLIDER_TYPE_FLOAT,
+  UI_SLIDER_TYPE_INT,
+
+  UI_SLIDER_TYPE_COUNT
+} uislidertype_t;
+
+typedef union {
+  float_t f;
+  int32_t i;
+} uislidervalue_t;
+
+typedef struct {
+  uiwidgetlabel_t label;
+  uiwidgetlabel_t valueLabel;
+  uislidertype_t type;
+  uislidervalue_t value;
+  uislidervalue_t min;
+  uislidervalue_t max;
+  uislidervalue_t step;
+  bool_t highlighted;
+
+  // Track/fill/marker geometry, cached relative to origin (0,0) and only
+  // rebuilt when the value or step configuration changes (see
+  // uiSliderRebuildGeometry) -- uiSliderDraw just translates these into
+  // position instead of re-deriving them every frame.
+  spritebatchsprite_t cachedTrack;
+  spritebatchsprite_t cachedFill;
+  bool_t cachedFillVisible;
+  spritebatchsprite_t cachedMarkers[UI_SLIDER_STEP_MARKERS_MAX];
+  int32_t cachedMarkerCount;
+} uislider_t;
+
+/**
+ * Initializes a floating point slider.
+ *
+ * @param slider The slider to initialize.
+ * @param label Display label.
+ * @param value Initial value, clamped to [min, max].
+ * @param min Minimum value.
+ * @param max Maximum value.
+ * @param step The amount a single step moves the value by.
+ */
+void uiSliderInitFloat(
+  uislider_t *slider,
+  const char_t *label,
+  const float_t value,
+  const float_t min,
+  const float_t max,
+  const float_t step
+);
+
+/**
+ * Initializes an integer slider.
+ *
+ * @param slider The slider to initialize.
+ * @param label Display label.
+ * @param value Initial value, clamped to [min, max].
+ * @param min Minimum value.
+ * @param max Maximum value.
+ * @param step The amount a single step moves the value by.
+ */
+void uiSliderInitInt(
+  uislider_t *slider,
+  const char_t *label,
+  const int32_t value,
+  const int32_t min,
+  const int32_t max,
+  const int32_t step
+);
+
+/**
+ * Returns the slider's current value as a float. Works for both slider
+ * types; int values are widened to float.
+ *
+ * @param slider The slider to query.
+ * @returns The current value.
+ */
+float_t uiSliderGetFloat(const uislider_t *slider);
+
+/**
+ * Returns the slider's current value as an int. Only valid for
+ * UI_SLIDER_TYPE_INT sliders.
+ *
+ * @param slider The slider to query.
+ * @returns The current value.
+ */
+int32_t uiSliderGetInt(const uislider_t *slider);
+
+/**
+ * Sets the slider's value, clamped to [min, max]. Only valid for
+ * UI_SLIDER_TYPE_FLOAT sliders.
+ *
+ * @param slider The slider to update.
+ * @param value The new value.
+ */
+void uiSliderSetFloat(uislider_t *slider, const float_t value);
+
+/**
+ * Sets the slider's value, clamped to [min, max]. Only valid for
+ * UI_SLIDER_TYPE_INT sliders.
+ *
+ * @param slider The slider to update.
+ * @param value The new value.
+ */
+void uiSliderSetInt(uislider_t *slider, const int32_t value);
+
+/**
+ * Moves the slider's value up by one step, wrapping around to its min
+ * if the step would exceed its max.
+ *
+ * @param slider The slider to update.
+ */
+void uiSliderStepUp(uislider_t *slider);
+
+/**
+ * Moves the slider's value down by one step, wrapping around to its
+ * max if the step would go below its min.
+ *
+ * @param slider The slider to update.
+ */
+void uiSliderStepDown(uislider_t *slider);
+
+/**
+ * Returns the slider's current value normalized to a 0..1 range based
+ * on its min/max.
+ *
+ * @param slider The slider to query.
+ * @returns The normalized value.
+ */
+float_t uiSliderGetRatio(const uislider_t *slider);
+
+/**
+ * Returns the number of discrete steps between min and max. Always 0
+ * for float sliders.
+ *
+ * @param slider The slider to query.
+ * @returns The step count.
+ */
+int32_t uiSliderGetStepCount(const uislider_t *slider);
+
+/**
+ * Returns whether the slider is highlighted.
+ *
+ * @param slider The slider to query.
+ * @returns True if highlighted.
+ */
+bool_t uiSliderIsHighlighted(const uislider_t *slider);
+
+/**
+ * Sets the highlighted state of the slider.
+ *
+ * @param slider The slider to update.
+ * @param highlighted The new highlighted state.
+ */
+void uiSliderSetHighlighted(uislider_t *slider, const bool_t highlighted);
+
+/**
+ * Draws the slider at the given screen position: label, then track,
+ * then the current value as text. Int sliders with fewer than
+ * UI_SLIDER_STEP_MARKERS_MAX discrete steps render a marker per step
+ * instead of a plain track.
+ *
+ * @param slider The slider to draw.
+ * @param x Screen x position.
+ * @param y Screen y position.
+ * @return Any error that occurs.
+ */
+errorret_t uiSliderDraw(
+  const uislider_t *slider,
+  const float_t x,
+  const float_t y
+);
+
+/**
+ * Rebuilds the slider's cached value label from its current value.
+ * Called internally whenever value changes.
+ *
+ * @param slider The slider to update.
+ */
+void uiSliderRebuildValueLabel(uislider_t *slider);
+
+/**
+ * Rebuilds the slider's cached track/fill/marker geometry (relative to
+ * origin (0,0)) from its current label size, value, and step
+ * configuration. Called internally on init and whenever the value
+ * changes -- uiSliderDraw never recomputes this itself.
+ *
+ * @param slider The slider to update.
+ */
+void uiSliderRebuildGeometry(uislider_t *slider);

archive/dusk/ui/widget/uitab.c

@@ -0,0 +1,69 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "uitab.h"
+#include "assert/assert.h"
+#include "display/text/text.h"
+#include "display/color.h"
+#include "display/spritebatch/spritebatch.h"
+#include "display/texture/texture.h"
+#include "display/shader/shaderunlit.h"
+
+void uiTabInit(uitab_t *tab, const char_t *label) {
+  assertNotNull(tab, "Tab cannot be NULL");
+  assertNotNull(label, "Label cannot be NULL");
+  uiWidgetLabelInit(&tab->label, &FONT_DEFAULT);
+  uiWidgetLabelSetText(&tab->label, label);
+  tab->active = false;
+  uiTabRebuildBackground(tab);
+}
+
+bool_t uiTabIsActive(const uitab_t *tab) {
+  assertNotNull(tab, "Tab cannot be NULL");
+  return tab->active;
+}
+
+void uiTabSetActive(uitab_t *tab, const bool_t active) {
+  assertNotNull(tab, "Tab cannot be NULL");
+  tab->active = active;
+}
+
+errorret_t uiTabDraw(
+  const uitab_t *tab,
+  const float_t x,
+  const float_t y
+) {
+  assertNotNull(tab, "Tab cannot be NULL");
+
+  spritebatchsprite_t sprite = spriteBatchSpriteTranslate(
+    &tab->cachedBackground, x, y
+  );
+  shadermaterial_t material = {
+    .unlit = {
+      .color = tab->active ? COLOR_GREEN : COLOR_RED,
+      .texture = &TEXTURE_WHITE
+    }
+  };
+  errorChain(spriteBatchBuffer(&sprite, 1, &SHADER_UNLIT, material));
+
+  errorChain(uiWidgetLabelDraw(&tab->label, x, y));
+
+  errorOk();
+}
+
+void uiTabRebuildBackground(uitab_t *tab) {
+  assertNotNull(tab, "Tab cannot be NULL");
+
+  int32_t labelW, labelH;
+  uiWidgetLabelGetSize(&tab->label, &labelW, &labelH);
+  tab->cachedBackground = (spritebatchsprite_t){
+    .min = { 0.0f, 0.0f, 0.0f },
+    .max = { (float_t)labelW, (float_t)labelH, 0.0f },
+    .uvMin = { 0.0f, 0.0f },
+    .uvMax = { 1.0f, 1.0f }
+  };
+}

archive/dusk/ui/widget/uitab.h

@@ -0,0 +1,70 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "error/error.h"
+#include "ui/widget/uiwidgetlabel.h"
+#include "display/spritebatch/spritebatchsprite.h"
+
+typedef struct {
+  uiwidgetlabel_t label;
+  bool_t active;
+
+  // Background quad, cached relative to origin (0,0) from the label's
+  // size at init -- uiTabDraw only translates this into position, since
+  // active/inactive only changes the material color, not the geometry.
+  spritebatchsprite_t cachedBackground;
+} uitab_t;
+
+/**
+ * Initializes a tab.
+ *
+ * @param tab The tab to initialize.
+ * @param label Display label.
+ */
+void uiTabInit(uitab_t *tab, const char_t *label);
+
+/**
+ * Returns whether the tab is active.
+ *
+ * @param tab The tab to query.
+ * @returns True if active.
+ */
+bool_t uiTabIsActive(const uitab_t *tab);
+
+/**
+ * Sets the active state of the tab.
+ *
+ * @param tab The tab to update.
+ * @param active The new active state.
+ */
+void uiTabSetActive(uitab_t *tab, const bool_t active);
+
+/**
+ * Draws the tab at the given screen position. Active tabs draw with a
+ * green background; inactive tabs draw with a red background.
+ *
+ * @param tab The tab to draw.
+ * @param x Screen x position.
+ * @param y Screen y position.
+ * @return Any error that occurs.
+ */
+errorret_t uiTabDraw(
+  const uitab_t *tab,
+  const float_t x,
+  const float_t y
+);
+
+/**
+ * Rebuilds the tab's cached background quad (relative to origin (0,0))
+ * from its current label size. Called internally by uiTabInit -- the
+ * background's geometry never changes afterwards, since the tab has no
+ * API to change its label text.
+ *
+ * @param tab The tab to update.
+ */
+void uiTabRebuildBackground(uitab_t *tab);

archive/dusk/ui/widget/uiwidgetlabel.c

@@ -0,0 +1,66 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "uiwidgetlabel.h"
+#include "assert/assert.h"
+#include "util/memory.h"
+#include "util/string.h"
+#include "display/text/text.h"
+
+void uiWidgetLabelInit(uiwidgetlabel_t *label, font_t *font) {
+  assertNotNull(label, "Label cannot be NULL");
+  assertNotNull(font, "Font cannot be NULL");
+
+  memoryZero(label, sizeof(uiwidgetlabel_t));
+  label->font = font;
+  label->color = COLOR_WHITE;
+}
+
+void uiWidgetLabelSetText(uiwidgetlabel_t *label, const char_t *text) {
+  assertNotNull(label, "Label cannot be NULL");
+  assertNotNull(text, "Text cannot be NULL");
+  assertStrLenMax(text, UI_WIDGET_LABEL_TEXT_MAX, "Label text too long");
+
+  stringCopy(label->text, text, UI_WIDGET_LABEL_TEXT_MAX);
+  label->spriteCount = textBuildSpriteCache(
+    label->text, label->font, label->sprites,
+    UI_WIDGET_LABEL_SPRITE_COUNT_MAX, &label->width, &label->height
+  );
+}
+
+void uiWidgetLabelSetColor(uiwidgetlabel_t *label, const color_t color) {
+  assertNotNull(label, "Label cannot be NULL");
+  label->color = color;
+}
+
+void uiWidgetLabelGetSize(
+  const uiwidgetlabel_t *label,
+  int32_t *outWidth,
+  int32_t *outHeight
+) {
+  assertNotNull(label, "Label cannot be NULL");
+  assertNotNull(outWidth, "Output width cannot be NULL");
+  assertNotNull(outHeight, "Output height cannot be NULL");
+  *outWidth = label->width;
+  *outHeight = label->height;
+}
+
+errorret_t uiWidgetLabelDraw(
+  const uiwidgetlabel_t *label,
+  const float_t x,
+  const float_t y
+) {
+  assertNotNull(label, "Label cannot be NULL");
+  if(label->spriteCount == 0) errorOk();
+
+  spritebatchsprite_t scratch[UI_WIDGET_LABEL_SPRITE_COUNT_MAX];
+  errorChain(textDrawSpriteCache(
+    label->sprites, label->spriteCount, scratch, x, y, label->color,
+    label->font->texture
+  ));
+  errorOk();
+}

archive/dusk/ui/widget/uiwidgetlabel.h

@@ -0,0 +1,90 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "error/error.h"
+#include "display/text/font.h"
+#include "display/spritebatch/spritebatchsprite.h"
+#include "display/color.h"
+
+// A cached, cheap-to-redraw label sized for embedding directly inside
+// small widgets (buttons, checkboxes, sliders, ...) rather than
+// referencing text by pointer and re-deriving glyph geometry every
+// frame. Capacity is intentionally much smaller than uilabel_t's -- it
+// gets embedded by value in every widget instance (and inside
+// uimenuitem_t's union, which is often arrayed), so keeping it small
+// matters on memory-constrained targets. See uilabel_t for the
+// general-purpose, larger-capacity equivalent.
+#define UI_WIDGET_LABEL_TEXT_MAX 64
+#define UI_WIDGET_LABEL_SPRITE_COUNT_MAX UI_WIDGET_LABEL_TEXT_MAX
+
+typedef struct {
+  char_t text[UI_WIDGET_LABEL_TEXT_MAX];
+  color_t color;
+  font_t *font;
+
+  spritebatchsprite_t sprites[UI_WIDGET_LABEL_SPRITE_COUNT_MAX];
+  uint32_t spriteCount;
+  int32_t width;
+  int32_t height;
+} uiwidgetlabel_t;
+
+/**
+ * Initializes a widget label, defaulting to white text and no text set.
+ *
+ * @param label The label to initialize.
+ * @param font Font to use for rendering. Must outlive the label.
+ */
+void uiWidgetLabelInit(uiwidgetlabel_t *label, font_t *font);
+
+/**
+ * Sets the label's text, rebuilding its cached sprites immediately.
+ * Call this whenever the displayed text changes -- uiWidgetLabelDraw
+ * never recomputes it.
+ *
+ * @param label The label to update.
+ * @param text Null-terminated string to display. Must be shorter than
+ * UI_WIDGET_LABEL_TEXT_MAX.
+ */
+void uiWidgetLabelSetText(uiwidgetlabel_t *label, const char_t *text);
+
+/**
+ * Sets the label's tint color. Cheap -- doesn't touch the sprite cache.
+ *
+ * @param label The label to update.
+ * @param color The new tint color.
+ */
+void uiWidgetLabelSetColor(uiwidgetlabel_t *label, const color_t color);
+
+/**
+ * Gets the measured size (in pixels) of the label's current text, cached
+ * from the last uiWidgetLabelSetText call.
+ *
+ * @param label The label to query.
+ * @param outWidth Pointer to store the width.
+ * @param outHeight Pointer to store the height.
+ */
+void uiWidgetLabelGetSize(
+  const uiwidgetlabel_t *label,
+  int32_t *outWidth,
+  int32_t *outHeight
+);
+
+/**
+ * Draws the label's cached sprites at the given screen position in a
+ * single batched buffer call. Does not recompute glyph layout.
+ *
+ * @param label The label to draw.
+ * @param x Screen x position.
+ * @param y Screen y position.
+ * @return Any error that occurs.
+ */
+errorret_t uiWidgetLabelDraw(
+  const uiwidgetlabel_t *label,
+  const float_t x,
+  const float_t y
+);

archive/duskrpg/ui/textbox/CMakeLists.txt

@@ -0,0 +1,10 @@
+# Copyright (c) 2026 Dominic Masters
+#
+# This software is released under the MIT License.
+# https://opensource.org/licenses/MIT
+
+target_sources(${DUSK_LIBRARY_TARGET_NAME}
+  PUBLIC
+    uitextbox.c
+    uitextboxmain.c
+)

archive/duskrpg/ui/textbox/uitextbox.c

@@ -0,0 +1,276 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "uitextbox.h"
+#include "assert/assert.h"
+#include "util/memory.h"
+#include "util/string.h"
+#include "time/time.h"
+#include "display/text/text.h"
+#include "display/color.h"
+#include "display/spritebatch/spritebatch.h"
+#include "display/shader/shaderunlit.h"
+#include "ui/frame/uiframe.h"
+
+void uiTextboxInit(
+  uitextbox_t *box,
+  char_t *text,
+  const uint32_t maxLength,
+  uitextboxline_t *lines,
+  const uint32_t linesMax
+) {
+  assertNotNull(box, "Textbox cannot be NULL");
+  assertNotNull(text, "Text buffer cannot be NULL");
+  assertTrue(maxLength >= 1, "maxLength must be at least 1");
+  assertNotNull(lines, "Lines buffer cannot be NULL");
+  assertTrue(linesMax >= 1, "linesMax must be at least 1");
+  memoryZero(box, sizeof(uitextbox_t));
+  box->text = text;
+  box->maxLength = maxLength;
+  box->lines = lines;
+  box->linesMax = linesMax;
+  box->glyphsBuiltForPage = -1;
+}
+
+void uiTextboxSetText(uitextbox_t *box, const char_t *text) {
+  assertNotNull(box, "Textbox cannot be NULL");
+  assertNotNull(text, "Text cannot be NULL");
+  stringCopy(box->text, text, box->maxLength);
+  box->currentPage = 0;
+  box->scroll = 0;
+  box->layoutWidth = 0.0f;
+  box->layoutHeight = 0.0f;
+  box->glyphsBuiltForPage = -1;
+}
+
+void uiTextboxBuildLayout(
+  uitextbox_t *box,
+  const float_t width,
+  const float_t height
+) {
+  assertNotNull(box, "Textbox cannot be NULL");
+
+  box->glyphsBuiltForPage = -1;
+  box->layoutWidth = width;
+  box->layoutHeight = height;
+  box->lineCount = 0;
+  box->pageCount = 1;
+
+  float_t fontW = (float_t)FONT_DEFAULT.tileset->tileWidth;
+  float_t fontH = (float_t)FONT_DEFAULT.tileset->tileHeight;
+
+  if(fontW <= 0.0f || fontH <= 0.0f) return;
+
+  box->charsPerLine = (int32_t)(width / fontW);
+  box->linesPerPage = (int32_t)(height / (fontH + UI_TEXTBOX_LINE_SPACING));
+  if(box->linesPerPage > UI_TEXTBOX_LINES_PER_PAGE_MAX) {
+    box->linesPerPage = UI_TEXTBOX_LINES_PER_PAGE_MAX;
+  }
+
+  if(box->charsPerLine <= 0 || box->linesPerPage <= 0) return;
+  if(box->text[0] == '\0') return;
+
+  char_t *src = box->text;
+  int32_t i = 0;
+
+  while(src[i] != '\0' && box->lineCount < (int32_t)box->linesMax) {
+    if(src[i] == '\t') {
+      i++;
+      int32_t rem = box->lineCount % box->linesPerPage;
+      int32_t pad = rem > 0 ? box->linesPerPage - rem : 0;
+      while(pad > 0 && box->lineCount < (int32_t)box->linesMax) {
+        box->lines[box->lineCount].start = i;
+        box->lines[box->lineCount].count = 0;
+        box->lineCount++;
+        pad--;
+      }
+      continue;
+    }
+
+    int32_t lineStart = i;
+    int32_t lineWidth = 0;
+
+    while(src[i] != '\0') {
+      char_t c = src[i];
+
+      if(c == '\n') { i++; break; }
+      if(c == '\t') break;
+
+      if(c == ' ') {
+        int32_t wordLen = 0;
+        int32_t j = i + 1;
+        while(
+          src[j] != ' ' && src[j] != '\n' &&
+          src[j] != '\t' && src[j] != '\0'
+        ) {
+          wordLen++;
+          j++;
+        }
+
+        if(lineWidth > 0 && lineWidth + 1 + wordLen > box->charsPerLine) {
+          i++;
+          break;
+        }
+
+        lineWidth++;
+        i++;
+      } else {
+        if(lineWidth >= box->charsPerLine) break;
+        lineWidth++;
+        i++;
+      }
+    }
+
+    box->lines[box->lineCount].start = lineStart;
+    box->lines[box->lineCount].count = lineWidth;
+    box->lineCount++;
+  }
+
+  if(box->lineCount == 0) {
+    box->pageCount = 1;
+  } else {
+    box->pageCount =
+      (box->lineCount + box->linesPerPage - 1) / box->linesPerPage;
+  }
+}
+
+errorret_t uiTextboxUpdate(uitextbox_t *box) {
+  assertNotNull(box, "Textbox cannot be NULL");
+
+  #ifdef DUSK_TIME_DYNAMIC
+    if(TIME.dynamicUpdate) errorOk();
+  #endif
+
+  if(!uiTextboxPageIsComplete(box)) {
+    box->scroll += UI_TEXTBOX_SCROLL_CHARS_PER_TICK;
+  }
+
+  errorOk();
+}
+
+errorret_t uiTextboxDraw(
+  uitextbox_t *box,
+  const float_t x,
+  const float_t y,
+  const float_t width,
+  const float_t height
+) {
+  assertNotNull(box, "Textbox cannot be NULL");
+
+  float_t startX = (float_t)UI_FRAME_START_X;
+  float_t startY = (float_t)UI_FRAME_START_Y;
+  float_t contentX = x + startX;
+  float_t contentY = y + startY;
+  float_t contentW = width - 2.0f * startX;
+  float_t contentH = height - 2.0f * startY;
+
+  if(contentW != box->layoutWidth || contentH != box->layoutHeight) {
+    uiTextboxBuildLayout(box, contentW, contentH);
+  }
+
+  errorChain(uiFrameDrawCached(&box->frameCache, x, y, width, height));
+
+  if(box->lineCount == 0 || box->text[0] == '\0') errorOk();
+
+  if(box->glyphsBuiltForPage != box->currentPage) {
+    uiTextboxBuildPageGlyphs(box);
+  }
+
+  if(box->glyphCount == 0) errorOk();
+
+  int32_t visibleCount = 0;
+  while(
+    visibleCount < box->glyphCount &&
+    box->glyphs[visibleCount].revealAt <= box->scroll
+  ) visibleCount++;
+
+  if(visibleCount == 0) errorOk();
+
+  spritebatchsprite_t scratch[UI_TEXTBOX_PAGE_GLYPHS_MAX];
+  for(int32_t i = 0; i < visibleCount; i++) {
+    scratch[i] = spriteBatchSpriteTranslate(
+      &box->glyphs[i].sprite, contentX, contentY
+    );
+  }
+
+  shadermaterial_t material = {
+    .unlit = {
+      .color = COLOR_WHITE,
+      .texture = FONT_DEFAULT.texture
+    }
+  };
+  errorChain(spriteBatchBuffer(scratch, visibleCount, &SHADER_UNLIT, material));
+
+  errorOk();
+}
+
+void uiTextboxBuildPageGlyphs(uitextbox_t *box) {
+  assertNotNull(box, "Textbox cannot be NULL");
+
+  box->glyphCount = 0;
+
+  int32_t pageFirst = box->currentPage * box->linesPerPage;
+  int32_t pageLast = pageFirst + box->linesPerPage;
+  if(pageLast > box->lineCount) pageLast = box->lineCount;
+
+  float_t fontW = (float_t)FONT_DEFAULT.tileset->tileWidth;
+  float_t fontH = (float_t)FONT_DEFAULT.tileset->tileHeight;
+
+  int32_t consumed = 0;
+  for(int32_t li = pageFirst; li < pageLast; li++) {
+    uitextboxline_t *line = &box->lines[li];
+    float_t lineY =
+      (float_t)(li - pageFirst) * (fontH + UI_TEXTBOX_LINE_SPACING);
+
+    for(int32_t ci = 0; ci < line->count; ci++) {
+      consumed++;
+      char_t c = box->text[line->start + ci];
+      if(c == ' ') continue;
+
+      assertTrue(
+        box->glyphCount < UI_TEXTBOX_PAGE_GLYPHS_MAX,
+        "Textbox page produces too many glyphs"
+      );
+      uitextboxglyph_t *glyph = &box->glyphs[box->glyphCount++];
+      glyph->sprite = textGetSprite(
+        (vec2){ (float_t)ci * fontW, lineY }, c, &FONT_DEFAULT
+      );
+      glyph->revealAt = consumed;
+    }
+  }
+
+  box->glyphsBuiltForPage = box->currentPage;
+}
+
+int32_t uiTextboxGetPageCharCount(const uitextbox_t *box) {
+  assertNotNull(box, "Textbox cannot be NULL");
+  int32_t first = box->currentPage * box->linesPerPage;
+  int32_t last = first + box->linesPerPage;
+  if(last > box->lineCount) last = box->lineCount;
+  int32_t total = 0;
+  for(int32_t i = first; i < last; i++) {
+    total += box->lines[i].count;
+  }
+  return total;
+}
+
+bool_t uiTextboxPageIsComplete(const uitextbox_t *box) {
+  assertNotNull(box, "Textbox cannot be NULL");
+  return box->scroll >= uiTextboxGetPageCharCount(box);
+}
+
+bool_t uiTextboxHasNextPage(const uitextbox_t *box) {
+  assertNotNull(box, "Textbox cannot be NULL");
+  return box->currentPage + 1 < box->pageCount;
+}
+
+void uiTextboxNextPage(uitextbox_t *box) {
+  assertNotNull(box, "Textbox cannot be NULL");
+  if(!uiTextboxHasNextPage(box)) return;
+  box->currentPage++;
+  box->scroll = 0;
+}

archive/duskrpg/ui/textbox/uitextbox.h

@@ -0,0 +1,175 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "error/error.h"
+#include "ui/frame/uiframe.h"
+#include "display/spritebatch/spritebatchsprite.h"
+
+#define UI_TEXTBOX_LINES_PER_PAGE_MAX 4
+#define UI_TEXTBOX_SCROLL_CHARS_PER_TICK 1
+#define UI_TEXTBOX_LINE_SPACING 0.0f
+
+// Fixed capacity for a page's cached glyph sprites (see uitextboxglyph_t).
+// Sized generously above UI_TEXTBOX_LINES_PER_PAGE_MAX worth of glyphs at
+// typical textbox widths; uiTextboxBuildPageGlyphs asserts if a page
+// somehow produces more than this.
+#define UI_TEXTBOX_PAGE_GLYPHS_MAX 512
+
+typedef struct {
+  int32_t start;
+  int32_t count;
+} uitextboxline_t;
+
+// A single visible glyph's cached sprite (relative to the textbox's
+// content origin, i.e. (0,0)) plus the scroll value at/after which it
+// becomes visible -- lets uiTextboxDraw turn the typewriter scroll into
+// a simple prefix-count instead of recomputing glyph geometry every
+// frame.
+typedef struct {
+  spritebatchsprite_t sprite;
+  int32_t revealAt;
+} uitextboxglyph_t;
+
+typedef struct {
+  char_t *text;
+  uint32_t maxLength;
+
+  uitextboxline_t *lines;
+  uint32_t linesMax;
+  int32_t lineCount;
+  int32_t charsPerLine;
+  int32_t linesPerPage;
+  int32_t pageCount;
+
+  // last dimensions used for layout; rebuild triggers when these change
+  float_t layoutWidth;
+  float_t layoutHeight;
+
+  int32_t currentPage;
+  int32_t scroll;
+
+  // Cached glyph sprites for the current page (see uitextboxglyph_t),
+  // rebuilt only when currentPage no longer matches
+  // glyphsBuiltForPage -- not every frame/scroll tick.
+  uitextboxglyph_t glyphs[UI_TEXTBOX_PAGE_GLYPHS_MAX];
+  int32_t glyphCount;
+  int32_t glyphsBuiltForPage;
+
+  uiframecache_t frameCache;
+} uitextbox_t;
+
+/**
+ * Initializes a textbox, zeroing all state and binding it to caller-owned
+ * text and line storage.
+ *
+ * @param box The textbox to initialize.
+ * @param text Caller-owned buffer the textbox copies its text into.
+ * @param maxLength Capacity of text, in characters.
+ * @param lines Caller-owned buffer the textbox lays lines out into.
+ * @param linesMax Capacity of lines, in entries.
+ */
+void uiTextboxInit(
+  uitextbox_t *box,
+  char_t *text,
+  const uint32_t maxLength,
+  uitextboxline_t *lines,
+  const uint32_t linesMax
+);
+
+/**
+ * Copies text into the textbox and marks layout as dirty.
+ * Resets currentPage and scroll to 0.
+ *
+ * @param box The textbox to update.
+ * @param text Null-terminated source string.
+ */
+void uiTextboxSetText(uitextbox_t *box, const char_t *text);
+
+/**
+ * Rebuilds word-wrap and page layout for the given draw dimensions.
+ * Called automatically by uiTextboxDraw when width or height changes.
+ *
+ * @param box The textbox to rebuild.
+ * @param width Available content width in pixels.
+ * @param height Available content height in pixels.
+ */
+void uiTextboxBuildLayout(
+  uitextbox_t *box,
+  const float_t width,
+  const float_t height
+);
+
+/**
+ * Advances the typewriter scroll by UI_TEXTBOX_SCROLL_CHARS_PER_TICK.
+ * Skipped on dynamic ticks.
+ *
+ * @param box The textbox to update.
+ * @returns Any error that occurs.
+ */
+errorret_t uiTextboxUpdate(uitextbox_t *box);
+
+/**
+ * Draws the textbox frame and visible text. Rebuilds layout automatically
+ * if width or height differs from the last draw call.
+ *
+ * @param box The textbox to draw.
+ * @param x Screen x position.
+ * @param y Screen y position.
+ * @param width Draw width in pixels.
+ * @param height Draw height in pixels.
+ * @returns Any error that occurs.
+ */
+errorret_t uiTextboxDraw(
+  uitextbox_t *box,
+  const float_t x,
+  const float_t y,
+  const float_t width,
+  const float_t height
+);
+
+/**
+ * Returns the total visible char count for the current page.
+ *
+ * @param box The textbox to query.
+ * @returns Total chars on the current page.
+ */
+int32_t uiTextboxGetPageCharCount(const uitextbox_t *box);
+
+/**
+ * Returns true when scroll has fully revealed the current page.
+ *
+ * @param box The textbox to query.
+ * @returns True if the current page is fully visible.
+ */
+bool_t uiTextboxPageIsComplete(const uitextbox_t *box);
+
+/**
+ * Returns true when there is at least one more page after the current one.
+ *
+ * @param box The textbox to query.
+ * @returns True if a next page exists.
+ */
+bool_t uiTextboxHasNextPage(const uitextbox_t *box);
+
+/**
+ * Advances to the next page and resets scroll to 0.
+ * Has no effect if already on the last page.
+ *
+ * @param box The textbox to advance.
+ */
+void uiTextboxNextPage(uitextbox_t *box);
+
+/**
+ * Rebuilds the cached glyph sprites (see uitextboxglyph_t) for the
+ * current page from its line layout. Called automatically by
+ * uiTextboxDraw whenever currentPage no longer matches the page the
+ * cache was last built for.
+ *
+ * @param box The textbox to rebuild.
+ */
+void uiTextboxBuildPageGlyphs(uitextbox_t *box);

archive/duskrpg/ui/textbox/uitextboxmain.c

@@ -0,0 +1,121 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "uitextboxmain.h"
+#include "ui/focus/uifocus.h"
+#include "display/screen/screen.h"
+#include "display/text/text.h"
+#include "display/color.h"
+#include "display/spritebatch/spritebatch.h"
+#include "display/shader/shaderunlit.h"
+#include "ui/frame/uiframe.h"
+
+uitextboxmain_t UI_TEXTBOX_MAIN;
+static uifocusitem_t *focusItem = NULL;
+
+errorret_t uiTextboxMainInit(void) {
+  uiTextboxInit(
+    &UI_TEXTBOX_MAIN.box,
+    UI_TEXTBOX_MAIN.text, UI_TEXTBOX_MAIN_TEXT_MAX,
+    UI_TEXTBOX_MAIN.lines, UI_TEXTBOX_MAIN_LINES_MAX
+  );
+  errorOk();
+}
+
+void uiTextboxMainSetText(const char_t *text) {
+  uiTextboxSetText(&UI_TEXTBOX_MAIN.box, text);
+  if(focusItem != NULL) return;
+  focusItem = uiFocusPush(
+    1, 1,
+    uiTextboxMainFocusSelected,
+    NULL,
+    uiTextboxMainFocusClosed,
+    NULL,
+    NULL
+  );
+}
+
+errorret_t uiTextboxMainUpdate(void) {
+  if(focusItem == NULL) errorOk();
+  return uiTextboxUpdate(&UI_TEXTBOX_MAIN.box);
+}
+
+errorret_t uiTextboxMainDraw(void) {
+  if(focusItem == NULL) errorOk();
+  float_t fontH = (float_t)FONT_DEFAULT.tileset->tileHeight;
+  float_t h = (float_t)UI_TEXTBOX_MAIN_LINES * fontH +
+    (float_t)(UI_TEXTBOX_MAIN_LINES - 1) * UI_TEXTBOX_LINE_SPACING +
+    2.0f * (float_t)UI_FRAME_START_Y;
+  float_t w = (float_t)SCREEN.scanWidth;
+  float_t x = (float_t)SCREEN.scanX;
+  float_t y = (float_t)(SCREEN.scanY + SCREEN.scanHeight) - h;
+  errorChain(uiTextboxDraw(&UI_TEXTBOX_MAIN.box, x, y, w, h));
+
+  if(!uiTextboxPageIsComplete(&UI_TEXTBOX_MAIN.box)) errorOk();
+
+  float_t fontW = (float_t)FONT_DEFAULT.tileset->tileWidth;
+  float_t contentX = x + (float_t)UI_FRAME_START_X;
+  float_t contentY = y + (float_t)UI_FRAME_START_Y;
+  float_t contentW = w - 2.0f * (float_t)UI_FRAME_START_X;
+  float_t contentH = h - 2.0f * (float_t)UI_FRAME_START_Y;
+
+  shadermaterial_t material = {
+    .unlit = {
+      .color = COLOR_WHITE,
+      .texture = FONT_DEFAULT.texture
+    }
+  };
+
+  spritebatchsprite_t caret = textGetSprite(
+    (vec2){
+      contentX + contentW - fontW,
+      contentY + contentH - fontH
+    },
+    'v',
+    &FONT_DEFAULT
+  );
+  errorChain(spriteBatchBuffer(&caret, 1, &SHADER_UNLIT, material));
+
+  errorOk();
+}
+
+bool_t uiTextboxMainPageIsComplete(void) {
+  return uiTextboxPageIsComplete(&UI_TEXTBOX_MAIN.box);
+}
+
+bool_t uiTextboxMainHasNextPage(void) {
+  return uiTextboxHasNextPage(&UI_TEXTBOX_MAIN.box);
+}
+
+void uiTextboxMainNextPage(void) {
+  uiTextboxNextPage(&UI_TEXTBOX_MAIN.box);
+}
+
+bool_t uiTextboxMainIsActive(void) {
+  return focusItem != NULL;
+}
+
+bool_t uiTextboxMainFocusSelected(const uifocusitem_t *item) {
+  if(!uiTextboxPageIsComplete(&UI_TEXTBOX_MAIN.box)) {
+    UI_TEXTBOX_MAIN.box.scroll =
+      uiTextboxGetPageCharCount(&UI_TEXTBOX_MAIN.box);
+    return true;
+  }
+
+  if(uiTextboxHasNextPage(&UI_TEXTBOX_MAIN.box)) {
+    uiTextboxNextPage(&UI_TEXTBOX_MAIN.box);
+    return true;
+  }
+
+  uiFocusPopItem(focusItem);
+  return true;
+}
+
+bool_t uiTextboxMainFocusClosed(const uifocusitem_t *item) {
+  focusItem = NULL;
+  return true;
+}

archive/duskrpg/ui/textbox/uitextboxmain.h

@@ -0,0 +1,94 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "uitextbox.h"
+#include "ui/focus/uifocusitem.h"
+
+#define UI_TEXTBOX_MAIN_LINES 4
+#define UI_TEXTBOX_MAIN_TEXT_MAX 1024
+#define UI_TEXTBOX_MAIN_LINES_MAX 64
+
+typedef struct {
+  uitextbox_t box;
+  char_t text[UI_TEXTBOX_MAIN_TEXT_MAX];
+  uitextboxline_t lines[UI_TEXTBOX_MAIN_LINES_MAX];
+} uitextboxmain_t;
+
+extern uitextboxmain_t UI_TEXTBOX_MAIN;
+
+/**
+ * Initializes UI_TEXTBOX_MAIN.
+ *
+ * @returns Any error that occurs.
+ */
+errorret_t uiTextboxMainInit(void);
+
+/**
+ * Copies text into UI_TEXTBOX_MAIN and resets page and scroll.
+ *
+ * @param text Null-terminated source string.
+ */
+void uiTextboxMainSetText(const char_t *text);
+
+/**
+ * Advances the typewriter scroll for UI_TEXTBOX_MAIN.
+ *
+ * @returns Any error that occurs.
+ */
+errorret_t uiTextboxMainUpdate(void);
+
+/**
+ * Draws UI_TEXTBOX_MAIN full-width at the bottom of the screen.
+ * Position and size are derived from SCREEN each call.
+ *
+ * @returns Any error that occurs.
+ */
+errorret_t uiTextboxMainDraw(void);
+
+/**
+ * Returns true when the current page is fully scrolled in.
+ *
+ * @returns True if the current page is complete.
+ */
+bool_t uiTextboxMainPageIsComplete(void);
+
+/**
+ * Returns true when at least one more page follows the current one.
+ *
+ * @returns True if a next page exists.
+ */
+bool_t uiTextboxMainHasNextPage(void);
+
+/**
+ * Advances UI_TEXTBOX_MAIN to the next page and resets scroll.
+ * Has no effect if already on the last page.
+ */
+void uiTextboxMainNextPage(void);
+
+/**
+ * Returns true when UI_TEXTBOX_MAIN has focus (is visible and active).
+ *
+ * @returns True if the textbox is currently active.
+ */
+bool_t uiTextboxMainIsActive(void);
+
+/**
+ * Internal focus callback - skip scroll or advance page or dismiss.
+ *
+ * @param item The active focus item.
+ * @returns True.
+ */
+bool_t uiTextboxMainFocusSelected(const uifocusitem_t *item);
+
+/**
+ * Internal focus callback - clears the focus item pointer on dismiss.
+ *
+ * @param item The focus item being closed.
+ * @returns True.
+ */
+bool_t uiTextboxMainFocusClosed(const uifocusitem_t *item);

archive/duskrpg/ui/uitestlabel.c

@@ -0,0 +1,35 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "uitestlabel.h"
+#include "ui/widget/uilabel.h"
+#include "display/text/text.h"
+#include "display/screen/screen.h"
+#include "engine/engine.h"
+
+uilabel_t UI_TEST_LABEL;
+
+errorret_t uiTestLabelInit() {
+  uiLabelInit(&UI_TEST_LABEL, &FONT_DEFAULT);
+  uiLabelSetText(&UI_TEST_LABEL, "duskrpg");
+  errorOk();
+}
+
+errorret_t uiTestLabelDraw() {
+  int32_t versionWidth, versionHeight;
+  textMeasure(ENGINE.version, &FONT_DEFAULT, &versionWidth, &versionHeight);
+
+  errorChain(uiLabelDraw(
+    &UI_TEST_LABEL,
+    (float_t)(SCREEN.scanX + SCREEN.scanWidth - UI_TEST_LABEL.width),
+    (float_t)(
+      SCREEN.scanY + SCREEN.scanHeight - versionHeight -
+      UI_TEST_LABEL.height
+    )
+  ));
+  errorOk();
+}

archive/duskrpg/ui/uitestlabel.h

@@ -0,0 +1,24 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "error/error.h"
+
+/**
+ * Initializes the test label, a smoke test for the duskrpg-side UI
+ * element extension point (uielementgame.h).
+ *
+ * @return Any error that occurs.
+ */
+errorret_t uiTestLabelInit();
+
+/**
+ * Draws the test label above the engine's debug version number.
+ *
+ * @return Any error that occurs.
+ */
+errorret_t uiTestLabelDraw();

archive/editor/__main__.py

@@ -1,57 +0,0 @@
-#!/usr/bin/env python3
-import sys
-from PyQt5.QtWidgets import (
-  QApplication, QVBoxLayout, QPushButton,
-  QDialog
-)
-from OpenGL.GL import *
-from OpenGL.GLU import *
-from tools.editor.maptool import MapWindow
-from tools.editor.langtool import LangToolWindow
-from tools.editor.cutscenetool import CutsceneToolWindow
-
-DEFAULT_TOOL = None
-DEFAULT_TOOL = "map"
-# DEFAULT_TOOL = "cutscene"
-
-TOOLS = [
-  ("Map Editor", "map", MapWindow),
-  ("Language Editor", "language", LangToolWindow),
-  ("Cutscene Editor", "cutscene", CutsceneToolWindow),
-]
-
-class EditorChoiceDialog(QDialog):
-  def __init__(self):
-    super().__init__()
-    self.setWindowTitle("Choose Tool")
-    layout = QVBoxLayout(self)
-    self.selected = None
-    for label, key, win_cls in TOOLS:
-      btn = QPushButton(label)
-      btn.clicked.connect(lambda checked, w=win_cls: self.choose_tool(w))
-      layout.addWidget(btn)
-
-  def choose_tool(self, win_cls):
-    self.selected = win_cls
-    self.accept()
-
-  def get_choice(self):
-    return self.selected
-
-def main():
-  app = QApplication(sys.argv)
-  tool_map = { key: win_cls for _, key, win_cls in TOOLS }
-  if DEFAULT_TOOL in tool_map:
-    win_cls = tool_map[DEFAULT_TOOL]
-  else:
-    choice_dialog = EditorChoiceDialog()
-    if choice_dialog.exec_() == QDialog.Accepted:
-      win_cls = choice_dialog.get_choice()
-    else:
-      sys.exit(0)
-  win = win_cls()
-  win.show()
-  sys.exit(app.exec_())
-
-if __name__ == "__main__":
-  main()