Starter application guide
Drag to orbit, scroll to zoom, and press Drop another body to add a sphere. The upper platform and terrain overlap in horizontal footprint while remaining separate in height. Bodies fall under application-supplied gravity and use engine collision response; no aircraft or shell code is imported.
The application is app.js. Its selected engine is engine/src/index.js. Use that module's THREE namespace instead of installing a second Three.js copy.
Keep app behavior here and shared engine fixes in the authoritative engine development project. Install a versioned engine update deliberately and retest the app. Documentation belongs under docs, with only README at this app's root.
This package has no standalone server executable. Use any local static HTTP server rooted at this folder. Opening it as a file URL is unsupported. Read engine/docs/API.md for lifecycle and resource-ownership rules; maintainer commands mentioning engine development tools apply to the complete engine project rather than this runtime copy.