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@aperture-engine/ui

v0.3.0

Published

Flexbox UI for Aperture: Yoga layout, SDF panels, text input, scrollbars, conditional/responsive styling, and prebuilt kits.

Vulnerabilities

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Links

Git

Maintainers

felixtrzfelixtrz

Keywords

apertureecsuiflexboxyogawebgpugame-enginetypescript

Readme

@aperture-engine/ui

Flexbox UI for the Aperture engine.

This package brings Aperture's UI to feature parity with in-scene UI libraries such as pmndrs/uikit, while keeping Aperture's structural advantages (WebGPU-native rendering, ECS authoring, worker-safe + deterministic layout, and a renderer-independent snapshot boundary).

It provides:

  • A Yoga-backed flexbox LayoutEngine with a retained, entity-keyed node tree, dirty-gated incremental relayout, and a freeze capability for static UI (a game-oriented feature in-scene UI libraries lack).
  • A renderer-independent layout style model (the full flexbox property set: grow/shrink/basis, wrap, justify/align, gap, per-side padding/margin, inset, min/max sizing, percentages, aspect ratio, overflow).
  • A bridge from Yoga measure functions to Aperture's deterministic MSDF text layout, so content-driven sizing (width: auto, wrapping, aspectRatio) works for text leaves.

See docs/UI_PACKAGE_PLAN.md for the full design and roadmap.

Entry Points

  • @aperture-engine/ui - worker-safe UI layout, components, extraction, input state, and style contracts.
  • @aperture-engine/ui/app - structural app feature descriptor for feature-based composition.
  • @aperture-engine/ui/browser - DOM-backed hidden input and IME bridge APIs.

Status

Under active development. The layout engine and style model are available; SDF borders, text input, scrollbars, conditional/responsive styling, and prebuilt kits land in subsequent milestones.

Determinism

Yoga's layout is deterministic for a single pinned WASM build. UI layout is downstream of the simulation (it does not feed the deterministic sim hash), so replays on the same build are exact.