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10 Commits
Author SHA1 Message Date
jpmschweitzerandClaude Opus 4.6 f87bd2b0e5 feat(simulation): add entity-entity collision 
validate_movement now checks both terrain walkability AND tile
occupancy. Builds a spatial index of occupied tiles from stationary
entities, then resolves movers in order — first valid claim wins.

Same spatial pattern needed for D-026 simulation tiers (30-80 active
NPCs) and future pathfinding occupied-tile awareness.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
 2026-02-11 20:15:24 +01:00
jpmschweitzerandClaude Opus 4.6 bef4383196 feat(simulation): add 8-directional movement 
Add diagonal PlayerAction variants (MoveNortheast, MoveNorthwest,
MoveSoutheast, MoveSouthwest) and TilePosition::all_neighbors()
returning all 8 surrounding tiles. Genre-expected for immersive sim.

Establishes the movement pattern before pathfinding is built on top.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
 2026-02-11 20:15:18 +01:00
jpmschweitzerandClaude Opus 4.6 9860fc0857 fix(simulation): address bridge review feedback 
Replace .lock().unwrap() with .expect("mutex poisoned") in LocalBridge
for clearer panic messages. Document 16MB MAX_MESSAGE_SIZE rationale
in framing.rs with entity count sizing analysis.

Addresses Hoshe PR review suggestions.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
 2026-02-11 19:32:35 +01:00
jpmschweitzerandClaude Opus 4.6 78e0c71c6d refactor(simulation): chunk-based walkability map per D-012 
Rewrites WalkabilityMap from flat Vec<bool> to HashMap<ChunkCoord, ChunkData>
with 32x32 tile chunks. Supports chunk load/unload for future borderless
generation. Unloaded chunks treated as unwalkable.

Adds TilePosition ↔ f32 render coordinate conversion (to_render_coords,
from_render_coords) bridging i32 simulation coords and f32 wire format.

Addresses Tyre PR review: D-012 chunk architecture compatibility and
VisibleEntity coordinate mismatch.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
 2026-02-11 19:32:29 +01:00
jpmschweitzerandClaude Opus 4.6 862ab9099f feat(simulation): add tile collision system (#236) 
TilePosition component with discrete grid coordinates, flat-storage
WalkabilityMap resource with O(1) can_move_to() lookup, MoveIntent
component and validate_movement system. Movement validated against
walkability map each tick, blocking all NPC and player movement
through unwalkable tiles. 11 unit tests + 1 integration test.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
 2026-02-11 19:07:53 +01:00
jpmschweitzerandClaude Opus 4.6 4ed15c1a38 feat(simulation): add LocalBridge IPC over Unix socket (#78) 
Length-prefixed MessagePack framing (4-byte BE length + payload),
LocalBridge struct implementing SimBridge trait over Unix domain
sockets, BridgeResource wrapper for ECS integration. Adds Io
error variant to BridgeError. Two integration tests verify
snapshot and input round-trips over real sockets.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
 2026-02-11 19:07:47 +01:00
jpmschweitzerandClaude Opus 4.6 112910df9b test(simulation): expand test coverage per PR #2 review 
- Add roundtrip tests for all PlayerAction variants (Hoshe #6)
- Add roundtrip tests for all EntityKind variants (Hoshe #6)
- Add day wraparound at midnight edge case test (Hoshe #7)
- Add day() calculation test (Hoshe #7)
- Add out-of-order input rejection test (Hoshe #7)
- Total: 15 → 20 tests

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
 2026-02-11 17:53:16 +01:00
jpmschweitzerandClaude Opus 4.6 6bda4a7620 fix(simulation): address PR #2 review findings 
- Fix Cargo.toml edition 2024 → 2021 (Hoshe #1)
- Switch test runner to cargo-nextest in Makefile (Hoshe #2, D-030)
- Add debug_assert tick ordering enforcement in InputQueue::push (Hoshe #4)
- Add DayPhase Serialize/Deserialize derives (Tyre #6)
- Add day phase boundary comments clarifying half-open ranges (Hoshe #3)
- Add phase duration adjustability comment (Tyre #5)
- Document ObserverSnapshot planned fields as TODO (Tyre #1)
- Document entity_id as wire-format ID, not ECS Entity (Tyre #2)
- Change Relationship.target_name to target_id: u64 (Tyre #3)
- Clarify single app.update() is intentional boilerplate (Hoshe #8, Tyre #7)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
 2026-02-11 17:53:01 +01:00
jpmschweitzerandClaude Opus 4.6 f67caf1986 feat(server): initialize Rust/bevy_ecs simulation server 
Server boilerplate epic (276) complete. Establishes the Rust simulation
server foundation per D-020 (subprocess/IPC architecture).

Structure:
- bevy_ecs 0.18 + bevy_app 0.18, MessagePack serialization (rmp-serde)
- SimulationPlugin with deterministic resources: SimulationTime (D-031),
  SimRng (D-030), InputQueue (D-010)
- Core IPC types: ObserverSnapshot, PlayerInput, SimBridge trait (D-020)
- CauseChain production component for provenance tracking (D-030)
- SimulationTier types with LRU eviction support (D-026)
- NPC 10-axis model components (D-024)
- 15 tests: inline unit tests + integration smoke/serialization tests
- make ci-server passes (clippy, fmt, build, test)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
 2026-02-11 16:54:40 +01:00
jpmschweitzerandClaude Opus 4.6 38ded93a5b chore(meta): add project directory scaffold 
Create client/, server/, tooling/, tests/, .config/ (tracked) and
.cache/ (gitignored). Update CLAUDE.md project structure to reflect
the new layout including workshops directory.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
 2026-02-11 01:21:11 +01:00