hytale-gravity-flip

T

kayjaydee 6574c05128 feat(02-02): add RegionRegistry + RegionSnapshot with ECS refreshFor (Tasks 1+2)

- RegionSnapshot: immutable per-world occupancy view (byRegion/tickId/world)
- RegionRegistry:
  * AtomicReference<List<GravityFlipRegion>> for tick-loop-safe region reads
  * CRUD (add/remove/setEnabled) under mutationLock + atomic snapshot republish
  * refreshFromConfig(cfg) hook for Phase 4 command handlers
  * refreshFor(World) iterates ECS via forEachEntityParallel +
    TransformComponent.getComponentType() (ComponentType IS-A Query, no builder) +
    Box.containsPosition(x,y,z); publishes per-world snapshot via AtomicReference.
  * Lazy ComponentType init (avoids Hytale PluginBase static init in tests)
  * Snapshots map keyed by Object (not World) so JDK 25 tests don't need Mockito
- 7/7 RegionRegistryTest pass: CRUD, snapshot read/publish, cross-thread visibility,
  refreshFromConfig atomic swap.

Probe results (recorded for SUMMARY):
- ArchetypeChunk.getRef(int) NOT present; actual method is getReferenceTo(int)
- TransformComponent.getPosition() returns com.hypixel.hytale.math.vector.Vector3d
  in pinned 2026.03.26 (Phase 02-01 deviation pattern recurs)

2026-04-23 00:54:32 +02:00