Stateless orbital system: each Orbital's local position is recomputed
each frame from phase + (TAU/period) * elapsed_secs. No per-entity
angle accumulator means no drift, trivial save/load (component data
only), and free pause/slow-mo via Bevy's time speed multiplier.
Extended to planets, stations, anomalies, gas clouds, and individual
asteroid rocks. Inner rocks orbit proportionally faster than outer
ones, producing visible belt shearing over time. Stargates stay
stationary as navigational aids. The orbital_period(orbit, jitter)
helper consolidates the period formula in one place.
10 new unit tests (7 for orbital_position, 3 for orbital_period).
All 32 tests pass.
Replace the flat-grey torus asteroid belt with a swarm of 60 individual
rocks per belt — one shared jittered-icosphere mesh asset scaled, rotated,
and palette-tinted per instance (5-entry greyscale/brown material set).
- New GeneratedAsteroid data (position/scale/rotation/material_index)
generated deterministically alongside the belt, preserving the
same-seed-same-galaxy invariant
- New build_asteroid_mesh + asteroid_material_palette helpers
- ContentAssets drops belt_material, adds asteroid_mesh + asteroid_materials
- spawn_system_contents signature simplified (no more &mut Assets<Mesh>)
- Belt entity is now a no-mesh parent (Mineable/Identifiable/...) with
rock meshes as children — sets the stage for per-asteroid mining
- Bundles the POI component/marker scaffolding (poi.rs) and per-system
contents generator (contents.rs: planets, stations, anomalies, stargates,
gas clouds) that the asteroid rendering sits on top of
- Tests: asteroid_generation_is_deterministic,
asteroid_positions_stay_inside_annulus
Camera (apps/game/src/camera.rs):
- Replace yaw/pitch with a single Quat rotation. Mouse drag now does
yaw-around-world-Y * rotation * pitch-around-local-X, which is gimbal-free
and allows true 360° tumbling in any direction.
- Remove pitch clamps (ORBIT_MIN_PITCH / ORBIT_MAX_PITCH).
- Add ResetOrbitCamera resource + apply_orbit_reset system that snaps the
orbit camera back to default on demand.
- OrbitCamera::reset() helper.
Galaxy scene (apps/game/src/gameplay/galaxy_creation/):
- New axes.rs: spawn_axes() draws three emissive cylinders through the
origin (X=red, Y=green, Z=blue) as children of the scene root so they
rebuild with the rest of the galaxy.
- UI adds a 'Center View' button below Regenerate that inserts
ResetOrbitCamera; handled by reset_view_button_handler.
- Help text now mentions drag/zoom/escape.
